diff options
| author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
|---|---|---|
| committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
| commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
| tree | b141608096b73163182764c25b895d3df4b2c182 /core/src/fpdfapi/fpdf_render | |
| parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
| download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz | |
Initial commit.
Diffstat (limited to 'core/src/fpdfapi/fpdf_render')
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render.cpp | 1488 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp | 389 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp | 1165 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp | 1524 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp | 1093 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp | 760 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/render_int.h | 462 |
7 files changed, 6881 insertions, 0 deletions
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render.cpp new file mode 100644 index 0000000000..0be25e3a79 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render.cpp @@ -0,0 +1,1488 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_module.h"
+#include "../fpdf_page/pageint.h"
+#include "../../../include/fxge/fx_ge.h"
+#include "../../../include/fxcodec/fx_codec.h"
+#include "render_int.h"
+CPDF_DocRenderData::CPDF_DocRenderData(CPDF_Document* pPDFDoc)
+ : m_pPDFDoc(pPDFDoc)
+ , m_pFontCache(NULL)
+{
+}
+CPDF_DocRenderData::~CPDF_DocRenderData()
+{
+ Clear(TRUE);
+}
+void CPDF_DocRenderData::Clear(FX_BOOL bRelease)
+{
+ FX_POSITION pos;
+ {
+ pos = m_Type3FaceMap.GetStartPosition();
+ while (pos) {
+ CPDF_Font* pFont;
+ CPDF_CountedObject<CPDF_Type3Cache*>* cache;
+ m_Type3FaceMap.GetNextAssoc(pos, pFont, cache);
+ if (bRelease || cache->m_nCount < 2) {
+ delete cache->m_Obj;
+ delete cache;
+ m_Type3FaceMap.RemoveKey(pFont);
+ }
+ }
+ }
+#ifndef _FPDFAPI_MINI_
+ {
+ pos = m_TransferFuncMap.GetStartPosition();
+ while (pos) {
+ CPDF_Object* key;
+ CPDF_CountedObject<CPDF_TransferFunc*>* value;
+ m_TransferFuncMap.GetNextAssoc(pos, key, value);
+ if (bRelease || value->m_nCount < 2) {
+ delete value->m_Obj;
+ delete value;
+ m_TransferFuncMap.RemoveKey(key);
+ }
+ }
+ }
+#endif
+ if (m_pFontCache) {
+ if (bRelease) {
+ delete m_pFontCache;
+ m_pFontCache = NULL;
+ } else {
+ m_pFontCache->FreeCache(FALSE);
+ }
+ }
+}
+FX_BOOL CPDF_DocRenderData::Initialize()
+{
+ m_pFontCache = FX_NEW CFX_FontCache;
+ return TRUE;
+}
+CPDF_Type3Cache* CPDF_DocRenderData::GetCachedType3(CPDF_Type3Font* pFont)
+{
+ CPDF_CountedObject<CPDF_Type3Cache*>* pCache;
+ if (!m_Type3FaceMap.Lookup(pFont, pCache)) {
+ CPDF_Type3Cache* pType3 = FX_NEW CPDF_Type3Cache(pFont);
+ pCache = FX_NEW CPDF_CountedObject<CPDF_Type3Cache*>;
+ pCache->m_Obj = pType3;
+ pCache->m_nCount = 1;
+ m_Type3FaceMap.SetAt(pFont, pCache);
+ }
+ pCache->m_nCount++;
+ return pCache->m_Obj;
+}
+void CPDF_DocRenderData::ReleaseCachedType3(CPDF_Type3Font* pFont)
+{
+ CPDF_CountedObject<CPDF_Type3Cache*>* pCache;
+ if (!m_Type3FaceMap.Lookup(pFont, pCache)) {
+ return;
+ }
+ pCache->m_nCount--;
+}
+class CPDF_RenderModule : public CPDF_RenderModuleDef
+{
+public:
+ virtual ~CPDF_RenderModule() {}
+ virtual FX_BOOL Installed()
+ {
+ return TRUE;
+ }
+ virtual CPDF_DocRenderData* CreateDocData(CPDF_Document* pDoc);
+ virtual void DestroyDocData(CPDF_DocRenderData* p);
+ virtual void ClearDocData(CPDF_DocRenderData* p);
+ virtual CPDF_DocRenderData* GetRenderData()
+ {
+ return &m_RenderData;
+ }
+ virtual CPDF_PageRenderCache* CreatePageCache(CPDF_Page* pPage)
+ {
+ return FX_NEW CPDF_PageRenderCache(pPage);
+ }
+ virtual void DestroyPageCache(CPDF_PageRenderCache* pCache);
+ virtual CPDF_RenderConfig* GetConfig()
+ {
+ return &m_RenderConfig;
+ }
+private:
+ CPDF_DocRenderData m_RenderData;
+ CPDF_RenderConfig m_RenderConfig;
+};
+CPDF_DocRenderData* CPDF_RenderModule::CreateDocData(CPDF_Document* pDoc)
+{
+ CPDF_DocRenderData* pData = FX_NEW CPDF_DocRenderData(pDoc);
+ pData->Initialize();
+ return pData;
+}
+void CPDF_RenderModule::DestroyDocData(CPDF_DocRenderData* pDocData)
+{
+ delete pDocData;
+}
+void CPDF_RenderModule::ClearDocData(CPDF_DocRenderData* p)
+{
+ if (p) {
+ p->Clear(FALSE);
+ }
+}
+void CPDF_RenderModule::DestroyPageCache(CPDF_PageRenderCache* pCache)
+{
+ delete pCache;
+}
+void CPDF_ModuleMgr::InitRenderModule()
+{
+ if (m_pRenderModule) {
+ delete m_pRenderModule;
+ }
+ m_pRenderModule = FX_NEW CPDF_RenderModule;
+}
+CPDF_RenderOptions::CPDF_RenderOptions()
+ : m_ColorMode(RENDER_COLOR_NORMAL)
+ , m_Flags(RENDER_CLEARTYPE)
+ , m_Interpolation(0)
+ , m_AddFlags(0)
+ , m_pOCContext(NULL)
+ , m_dwLimitCacheSize(1024 * 1024 * 100)
+ , m_HalftoneLimit(-1)
+{
+#if defined(_FPDFAPI_MINI_)
+ m_Flags |= RENDER_LIMITEDIMAGECACHE;
+#endif
+}
+FX_ARGB CPDF_RenderOptions::TranslateColor(FX_ARGB argb) const
+{
+ if (m_ColorMode == RENDER_COLOR_NORMAL) {
+ return argb;
+ }
+ if (m_ColorMode == RENDER_COLOR_ALPHA) {
+ return argb;
+ }
+ int a, r, g, b;
+ ArgbDecode(argb, a, r, g, b);
+ int gray = FXRGB2GRAY(r, g, b);
+ if (m_ColorMode == RENDER_COLOR_TWOCOLOR) {
+ int color = (r - gray) * (r - gray) + (g - gray) * (g - gray) + (b - gray) * (b - gray);
+ if (gray < 35 && color < 20) {
+ return ArgbEncode(a, m_ForeColor);
+ }
+ if (gray > 221 && color < 20) {
+ return ArgbEncode(a, m_BackColor);
+ }
+ return argb;
+ }
+ int fr = FXSYS_GetRValue(m_ForeColor);
+ int fg = FXSYS_GetGValue(m_ForeColor);
+ int fb = FXSYS_GetBValue(m_ForeColor);
+ int br = FXSYS_GetRValue(m_BackColor);
+ int bg = FXSYS_GetGValue(m_BackColor);
+ int bb = FXSYS_GetBValue(m_BackColor);
+ r = (br - fr) * gray / 255 + fr;
+ g = (bg - fg) * gray / 255 + fg;
+ b = (bb - fb) * gray / 255 + fb;
+ return ArgbEncode(a, r, g, b);
+}
+CPDF_RenderStatus::CPDF_RenderStatus()
+{
+ m_pContext = NULL;
+ m_bStopped = FALSE;
+ m_Level = 0;
+ m_pDevice = NULL;
+ m_pCurObj = NULL;
+ m_pStopObj = NULL;
+ m_HalftoneLimit = 0;
+ m_pObjectRenderer = NULL;
+ m_bPrint = FALSE;
+ m_Transparency = 0;
+ m_DitherBits = 0;
+ m_bDropObjects = FALSE;
+ m_bStdCS = FALSE;
+ m_GroupFamily = 0;
+ m_bLoadMask = FALSE;
+ m_pType3Char = NULL;
+ m_T3FillColor = 0;
+ m_pFormResource = NULL;
+ m_pPageResource = NULL;
+ m_curBlend = FXDIB_BLEND_NORMAL;
+}
+CPDF_RenderStatus::~CPDF_RenderStatus()
+{
+ if (m_pObjectRenderer) {
+ delete m_pObjectRenderer;
+ }
+}
+FX_BOOL CPDF_RenderStatus::Initialize(int level, CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice,
+ const CFX_AffineMatrix* pDeviceMatrix, const CPDF_PageObject* pStopObj,
+ const CPDF_RenderStatus* pParentState, const CPDF_GraphicStates* pInitialStates,
+ const CPDF_RenderOptions* pOptions, int transparency, FX_BOOL bDropObjects,
+ CPDF_Dictionary* pFormResource, FX_BOOL bStdCS, CPDF_Type3Char* pType3Char,
+ FX_ARGB fill_color, FX_DWORD GroupFamily,
+ FX_BOOL bLoadMask)
+{
+ m_Level = level;
+ m_pContext = pContext;
+ m_pDevice = pDevice;
+ m_DitherBits = pDevice->GetDeviceCaps(FXDC_DITHER_BITS);
+ m_bPrint = m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
+ if (pDeviceMatrix) {
+ m_DeviceMatrix = *pDeviceMatrix;
+ }
+ m_pStopObj = pStopObj;
+ if (pOptions) {
+ m_Options = *pOptions;
+ }
+ m_bDropObjects = bDropObjects;
+ m_bStdCS = bStdCS;
+ m_T3FillColor = fill_color;
+ m_pType3Char = pType3Char;
+ m_GroupFamily = GroupFamily;
+ m_bLoadMask = bLoadMask;
+ m_pFormResource = pFormResource;
+ m_pPageResource = m_pContext->m_pPageResources;
+ if (pInitialStates && !m_pType3Char) {
+ m_InitialStates.CopyStates(*pInitialStates);
+ if (pParentState) {
+ CPDF_ColorStateData* pColorData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)m_InitialStates.m_ColorState;
+ CPDF_ColorStateData* pParentData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)pParentState->m_InitialStates.m_ColorState;
+ if (!pColorData || pColorData->m_FillColor.IsNull()) {
+ CPDF_ColorStateData* pData = m_InitialStates.m_ColorState.GetModify();
+ pData->m_FillRGB = pParentData->m_FillRGB;
+ pData->m_FillColor.Copy(&pParentData->m_FillColor);
+ }
+ if (!pColorData || pColorData->m_StrokeColor.IsNull()) {
+ CPDF_ColorStateData* pData = m_InitialStates.m_ColorState.GetModify();
+ pData->m_StrokeRGB = pParentData->m_FillRGB;
+ pData->m_StrokeColor.Copy(&pParentData->m_StrokeColor);
+ }
+ }
+ } else {
+ m_InitialStates.DefaultStates();
+ }
+#if defined(_FPDFAPI_MINI_)||defined(_FXCORE_LIMITED_CPU_)
+ m_HalftoneLimit = CPDF_ModuleMgr::Get()->GetRenderModule()->GetConfig()->m_HalftoneLimit;
+ if (pOptions && pOptions->m_HalftoneLimit >= 0) {
+ m_HalftoneLimit = pOptions->m_HalftoneLimit;
+ }
+#endif
+ m_pObjectRenderer = NULL;
+ m_Transparency = transparency;
+ return TRUE;
+}
+void CPDF_RenderStatus::RenderObjectList(const CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObj2Device)
+{
+ if (m_Level > 32) {
+ return;
+ }
+ CFX_FloatRect clip_rect = m_pDevice->GetClipBox();
+ CFX_AffineMatrix device2object;
+ device2object.SetReverse(*pObj2Device);
+ device2object.TransformRect(clip_rect);
+ int index = 0;
+ FX_POSITION pos = pObjs->GetFirstObjectPosition();
+ while(pos) {
+ index ++;
+ CPDF_PageObject* pCurObj = pObjs->GetNextObject(pos);
+ if (pCurObj == m_pStopObj) {
+ m_bStopped = TRUE;
+ return;
+ }
+ if (!pCurObj) {
+ continue;
+ }
+ if(pCurObj == NULL || pCurObj->m_Left > clip_rect.right || pCurObj->m_Right < clip_rect.left ||
+ pCurObj->m_Bottom > clip_rect.top || pCurObj->m_Top < clip_rect.bottom) {
+ continue;
+ }
+ RenderSingleObject(pCurObj, pObj2Device);
+ if (m_bStopped) {
+ return;
+ }
+ }
+}
+void CPDF_RenderStatus::RenderSingleObject(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device)
+{
+ if (m_Level > 32) {
+ return;
+ }
+ m_pCurObj = pObj;
+ if (m_Options.m_pOCContext && pObj->m_ContentMark.NotNull())
+ if (!m_Options.m_pOCContext->CheckObjectVisible(pObj)) {
+ return;
+ }
+ ProcessClipPath(pObj->m_ClipPath, pObj2Device);
+ if (ProcessTransparency(pObj, pObj2Device)) {
+ return;
+ }
+ ProcessObjectNoClip(pObj, pObj2Device);
+}
+FX_BOOL CPDF_RenderStatus::ContinueSingleObject(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, IFX_Pause* pPause)
+{
+ if (m_pObjectRenderer) {
+ if (m_pObjectRenderer->Continue(pPause)) {
+ return TRUE;
+ }
+ if (!m_pObjectRenderer->m_Result) {
+ DrawObjWithBackground(pObj, pObj2Device);
+ }
+#ifdef _FPDFAPI_MINI_
+ if (m_DitherBits) {
+ DitherObjectArea(pObj, pObj2Device);
+ }
+#endif
+ delete m_pObjectRenderer;
+ m_pObjectRenderer = NULL;
+ return FALSE;
+ }
+ m_pCurObj = pObj;
+ if (m_Options.m_pOCContext && pObj->m_ContentMark.NotNull())
+ if (!m_Options.m_pOCContext->CheckObjectVisible(pObj)) {
+ return FALSE;
+ }
+ ProcessClipPath(pObj->m_ClipPath, pObj2Device);
+ if (ProcessTransparency(pObj, pObj2Device)) {
+ return FALSE;
+ }
+ if (pObj->m_Type == PDFPAGE_IMAGE) {
+ m_pObjectRenderer = IPDF_ObjectRenderer::Create(pObj->m_Type);
+ if (!m_pObjectRenderer->Start(this, pObj, pObj2Device, FALSE)) {
+ if (!m_pObjectRenderer->m_Result) {
+ DrawObjWithBackground(pObj, pObj2Device);
+ }
+#ifdef _FPDFAPI_MINI_
+ if (m_DitherBits) {
+ DitherObjectArea(pObj, pObj2Device);
+ }
+#endif
+ delete m_pObjectRenderer;
+ m_pObjectRenderer = NULL;
+ return FALSE;
+ }
+ return ContinueSingleObject(pObj, pObj2Device, pPause);
+ }
+ ProcessObjectNoClip(pObj, pObj2Device);
+ return FALSE;
+}
+IPDF_ObjectRenderer* IPDF_ObjectRenderer::Create(int type)
+{
+ IPDF_ObjectRenderer* pRenderer = NULL;
+ if (type == PDFPAGE_IMAGE) {
+ pRenderer = FX_NEW CPDF_ImageRenderer;
+ }
+ return pRenderer;
+}
+FX_BOOL CPDF_RenderStatus::GetObjectClippedRect(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bLogical, FX_RECT &rect) const
+{
+ rect = pObj->GetBBox(pObj2Device);
+ FX_RECT rtClip = m_pDevice->GetClipBox();
+ if (!bLogical) {
+ CFX_Matrix dCTM = m_pDevice->GetCTM();
+ FX_FLOAT a = FXSYS_fabs(dCTM.a);
+ FX_FLOAT d = FXSYS_fabs(dCTM.d);
+ if (a != 1.0f || d != 1.0f) {
+ rect.right = rect.left + (FX_INT32)FXSYS_ceil((FX_FLOAT)rect.Width() * a);
+ rect.bottom = rect.top + (FX_INT32)FXSYS_ceil((FX_FLOAT)rect.Height() * d);
+ rtClip.right = rtClip.left + (FX_INT32)FXSYS_ceil((FX_FLOAT)rtClip.Width() * a);
+ rtClip.bottom = rtClip.top + (FX_INT32)FXSYS_ceil((FX_FLOAT)rtClip.Height() * d);
+ }
+ }
+ rect.Intersect(rtClip);
+ return rect.IsEmpty();
+}
+void CPDF_RenderStatus::DitherObjectArea(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device)
+{
+ CFX_DIBitmap* pBitmap = m_pDevice->GetBitmap();
+ if (pBitmap == NULL) {
+ return;
+ }
+ FX_RECT rect;
+ if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
+ return;
+ }
+ if (m_DitherBits == 2) {
+ static FX_ARGB pal[4] = {0, 85, 170, 255};
+ pBitmap->DitherFS(pal, 4, &rect);
+ } else if (m_DitherBits == 3) {
+ static FX_ARGB pal[8] = {0, 36, 73, 109, 146, 182, 219, 255};
+ pBitmap->DitherFS(pal, 8, &rect);
+ } else if (m_DitherBits == 4) {
+ static FX_ARGB pal[16] = {0, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255};
+ pBitmap->DitherFS(pal, 16, &rect);
+ }
+}
+void CPDF_RenderStatus::ProcessObjectNoClip(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device)
+{
+ FX_BOOL bRet = FALSE;
+ switch (pObj->m_Type) {
+ case PDFPAGE_TEXT:
+ bRet = ProcessText((CPDF_TextObject*)pObj, pObj2Device, NULL);
+ break;
+ case PDFPAGE_PATH:
+ bRet = ProcessPath((CPDF_PathObject*)pObj, pObj2Device);
+ break;
+ case PDFPAGE_IMAGE:
+ bRet = ProcessImage((CPDF_ImageObject*)pObj, pObj2Device);
+ break;
+ case PDFPAGE_SHADING:
+ bRet = ProcessShading((CPDF_ShadingObject*)pObj, pObj2Device);
+ break;
+ case PDFPAGE_FORM:
+ bRet = ProcessForm((CPDF_FormObject*)pObj, pObj2Device);
+ break;
+#if defined(_FPDFAPI_MINI_)
+ case PDFPAGE_INLINES:
+ bRet = ProcessInlines((CPDF_InlineImages*)pObj, pObj2Device);
+ break;
+#endif
+ }
+ if (!bRet) {
+ DrawObjWithBackground(pObj, pObj2Device);
+ }
+}
+FX_BOOL CPDF_RenderStatus::DrawObjWithBlend(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device)
+{
+ FX_BOOL bRet = FALSE;
+ switch (pObj->m_Type) {
+ case PDFPAGE_PATH:
+ bRet = ProcessPath((CPDF_PathObject*)pObj, pObj2Device);
+ break;
+ case PDFPAGE_IMAGE:
+ bRet = ProcessImage((CPDF_ImageObject *)pObj, pObj2Device);
+ break;
+ case PDFPAGE_FORM:
+ bRet = ProcessForm((CPDF_FormObject*)pObj, pObj2Device);
+ break;
+ }
+ return bRet;
+}
+void CPDF_RenderStatus::GetScaledMatrix(CFX_Matrix &matrix) const
+{
+ CFX_Matrix dCTM = m_pDevice->GetCTM();
+ matrix.a *= FXSYS_fabs(dCTM.a);
+ matrix.d *= FXSYS_fabs(dCTM.d);
+}
+void CPDF_RenderStatus::DrawObjWithBackground(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device)
+{
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ FX_RECT rect;
+ if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
+ return;
+ }
+ int res = 300;
+ if (pObj->m_Type == PDFPAGE_IMAGE && m_pDevice->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
+ res = 0;
+ }
+ CPDF_ScaledRenderBuffer buffer;
+ if (!buffer.Initialize(m_pContext, m_pDevice, &rect, pObj, &m_Options, res)) {
+ return;
+ }
+ CFX_AffineMatrix matrix = *pObj2Device;
+ matrix.Concat(*buffer.GetMatrix());
+ GetScaledMatrix(matrix);
+ CPDF_Dictionary* pFormResource = NULL;
+ if (pObj->m_Type == PDFPAGE_FORM) {
+ CPDF_FormObject* pFormObj = (CPDF_FormObject*)pObj;
+ if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
+ pFormResource = pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
+ }
+ }
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, buffer.GetDevice(), buffer.GetMatrix(), NULL, NULL, NULL, &m_Options, m_Transparency, m_bDropObjects, pFormResource);
+ status.RenderSingleObject(pObj, &matrix);
+ buffer.OutputToDevice();
+#endif
+}
+FX_BOOL CPDF_RenderStatus::ProcessForm(CPDF_FormObject* pFormObj, const CFX_AffineMatrix* pObj2Device)
+{
+ CPDF_Dictionary* pOC = pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("OC"));
+ if (pOC && m_Options.m_pOCContext && !m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
+ return TRUE;
+ }
+ CFX_AffineMatrix matrix = pFormObj->m_FormMatrix;
+ matrix.Concat(*pObj2Device);
+ CPDF_Dictionary* pResources = NULL;
+ if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
+ pResources = pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
+ }
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, m_pStopObj,
+ this, pFormObj, &m_Options, m_Transparency, m_bDropObjects, pResources, TRUE);
+ status.m_curBlend = m_curBlend;
+ m_pDevice->SaveState();
+ status.RenderObjectList(pFormObj->m_pForm, &matrix);
+ m_bStopped = status.m_bStopped;
+ m_pDevice->RestoreState();
+ return TRUE;
+}
+FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix)
+{
+ if (matrix.a == 0 || matrix.d == 0) {
+ return matrix.b != 0 && matrix.c != 0;
+ }
+ if (matrix.b == 0 || matrix.c == 0) {
+ return matrix.a != 0 && matrix.d != 0;
+ }
+ return TRUE;
+}
+FX_BOOL CPDF_RenderStatus::ProcessPath(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device)
+{
+ int FillType = pPathObj->m_FillType;
+ FX_BOOL bStroke = pPathObj->m_bStroke;
+ ProcessPathPattern(pPathObj, pObj2Device, FillType, bStroke);
+ if (FillType == 0 && !bStroke) {
+ return TRUE;
+ }
+ FX_DWORD fill_argb = 0;
+ if (FillType) {
+ fill_argb = GetFillArgb(pPathObj);
+ }
+ FX_DWORD stroke_argb = 0;
+ if (bStroke) {
+ stroke_argb = GetStrokeArgb(pPathObj);
+ }
+ CFX_AffineMatrix path_matrix = pPathObj->m_Matrix;
+ path_matrix.Concat(*pObj2Device);
+ if (!IsAvailableMatrix(path_matrix)) {
+ return TRUE;
+ }
+ if (FillType && (m_Options.m_Flags & RENDER_RECT_AA)) {
+ FillType |= FXFILL_RECT_AA;
+ }
+ if (m_Options.m_Flags & RENDER_FILL_FULLCOVER) {
+ FillType |= FXFILL_FULLCOVER;
+ }
+ if (m_Options.m_Flags & RENDER_NOPATHSMOOTH) {
+ FillType |= FXFILL_NOPATHSMOOTH;
+ }
+ if (bStroke) {
+ FillType |= FX_FILL_STROKE;
+ }
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)pPathObj)->m_GeneralState;
+ if (pGeneralData && pGeneralData->m_StrokeAdjust) {
+ FillType |= FX_STROKE_ADJUST;
+ }
+#endif
+ if (m_pType3Char) {
+ FillType |= FX_FILL_TEXT_MODE;
+ }
+ CFX_GraphStateData graphState(*pPathObj->m_GraphState);
+ if (m_Options.m_Flags & RENDER_THINLINE) {
+ graphState.m_LineWidth = 0;
+ }
+ return m_pDevice->DrawPath(pPathObj->m_Path, &path_matrix, &graphState, fill_argb, stroke_argb, FillType, 0, NULL, m_curBlend);
+}
+CPDF_TransferFunc* CPDF_RenderStatus::GetTransferFunc(CPDF_Object* pObj) const
+{
+ ASSERT(pObj != NULL);
+ CPDF_DocRenderData* pDocCache = m_pContext->m_pDocument->GetRenderData();
+ if (!pDocCache) {
+ return NULL;
+ }
+ return pDocCache->GetTransferFunc(pObj);
+}
+FX_ARGB CPDF_RenderStatus::GetFillArgb(const CPDF_PageObject* pObj, FX_BOOL bType3) const
+{
+ CPDF_ColorStateData* pColorData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)pObj->m_ColorState;
+ if (m_pType3Char && !bType3 && (!m_pType3Char->m_bColored || (m_pType3Char->m_bColored && (!pColorData || pColorData->m_FillColor.IsNull())))) {
+ return m_T3FillColor;
+ } else if (!pColorData || pColorData->m_FillColor.IsNull()) {
+ pColorData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)m_InitialStates.m_ColorState;
+ }
+ FX_COLORREF rgb = pColorData->m_FillRGB;
+ if (rgb == (FX_DWORD) - 1) {
+ return 0;
+ }
+ const CPDF_GeneralStateData* pGeneralData = pObj->m_GeneralState;
+ int alpha;
+ if (pGeneralData) {
+ alpha = (FX_INT32)(pGeneralData->m_FillAlpha * 255);
+#ifndef _FPDFAPI_MINI_
+ if (pGeneralData->m_pTR) {
+ if (!pGeneralData->m_pTransferFunc) {
+ ((CPDF_GeneralStateData*)pGeneralData)->m_pTransferFunc = GetTransferFunc(pGeneralData->m_pTR);
+ }
+ if (pGeneralData->m_pTransferFunc) {
+ rgb = pGeneralData->m_pTransferFunc->TranslateColor(rgb);
+ }
+ }
+#endif
+ } else {
+ alpha = 255;
+ }
+ return m_Options.TranslateColor(ArgbEncode(alpha, rgb));
+}
+FX_ARGB CPDF_RenderStatus::GetStrokeArgb(const CPDF_PageObject* pObj) const
+{
+ CPDF_ColorStateData* pColorData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)pObj->m_ColorState;
+ if (m_pType3Char && (!m_pType3Char->m_bColored || (m_pType3Char->m_bColored && (!pColorData || pColorData->m_StrokeColor.IsNull())))) {
+ return m_T3FillColor;
+ } else if (!pColorData || pColorData->m_StrokeColor.IsNull()) {
+ pColorData = (CPDF_ColorStateData*)(const CPDF_ColorStateData*)m_InitialStates.m_ColorState;
+ }
+ FX_COLORREF rgb = pColorData->m_StrokeRGB;
+ if (rgb == (FX_DWORD) - 1) {
+ return 0;
+ }
+ const CPDF_GeneralStateData* pGeneralData = pObj->m_GeneralState;
+ int alpha;
+ if (pGeneralData) {
+ alpha = (FX_INT32)(pGeneralData->m_StrokeAlpha * 255);
+#ifndef _FPDFAPI_MINI_
+ if (pGeneralData->m_pTR) {
+ if (!pGeneralData->m_pTransferFunc) {
+ ((CPDF_GeneralStateData*)pGeneralData)->m_pTransferFunc = GetTransferFunc(pGeneralData->m_pTR);
+ }
+ if (pGeneralData->m_pTransferFunc) {
+ rgb = pGeneralData->m_pTransferFunc->TranslateColor(rgb);
+ }
+ }
+#endif
+ } else {
+ alpha = 255;
+ }
+ return m_Options.TranslateColor(ArgbEncode(alpha, rgb));
+}
+void CPDF_RenderStatus::ProcessClipPath(CPDF_ClipPath ClipPath, const CFX_AffineMatrix* pObj2Device)
+{
+ if (ClipPath.IsNull()) {
+ if (m_LastClipPath.IsNull()) {
+ return;
+ }
+ m_pDevice->RestoreState(TRUE);
+ m_LastClipPath.SetNull();
+ return;
+ }
+ if (m_LastClipPath == ClipPath) {
+ return;
+ }
+ m_LastClipPath = ClipPath;
+ m_pDevice->RestoreState(TRUE);
+ int nClipPath = ClipPath.GetPathCount();
+ int i;
+ for (i = 0; i < nClipPath; i++) {
+ const CFX_PathData* pPathData = ClipPath.GetPath(i);
+ if (pPathData == NULL) {
+ continue;
+ }
+ if (pPathData->GetPointCount() == 0) {
+ CFX_PathData EmptyPath;
+ EmptyPath.AppendRect(-1, -1, 0, 0);
+ int fill_mode = FXFILL_WINDING;
+ m_pDevice->SetClip_PathFill(&EmptyPath, NULL, fill_mode);
+ } else {
+ int ClipType = ClipPath.GetClipType(i);
+ m_pDevice->SetClip_PathFill(pPathData, pObj2Device, ClipType);
+ }
+ }
+ int textcount = ClipPath.GetTextCount();
+ if (textcount == 0) {
+ return;
+ }
+ if (m_pDevice->GetDeviceClass() == FXDC_DISPLAY && !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) {
+ return;
+ }
+ CFX_PathData* pTextClippingPath = NULL;
+ for (i = 0; i < textcount; i ++) {
+ CPDF_TextObject* pText = ClipPath.GetText(i);
+ if (pText == NULL) {
+ if (pTextClippingPath) {
+ int fill_mode = FXFILL_WINDING;
+ if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) {
+ fill_mode |= FXFILL_NOPATHSMOOTH;
+ }
+ m_pDevice->SetClip_PathFill(pTextClippingPath, NULL, fill_mode);
+ delete pTextClippingPath;
+ pTextClippingPath = NULL;
+ }
+ } else {
+ if (pTextClippingPath == NULL) {
+ pTextClippingPath = FX_NEW CFX_PathData;
+ }
+ ProcessText(pText, pObj2Device, pTextClippingPath);
+ }
+ }
+ if (pTextClippingPath) {
+ delete pTextClippingPath;
+ }
+}
+void CPDF_RenderStatus::DrawClipPath(CPDF_ClipPath ClipPath, const CFX_AffineMatrix* pObj2Device)
+{
+ if (ClipPath.IsNull()) {
+ return;
+ }
+ int fill_mode = 0;
+ if (m_Options.m_Flags & RENDER_NOPATHSMOOTH) {
+ fill_mode |= FXFILL_NOPATHSMOOTH;
+ }
+ int nClipPath = ClipPath.GetPathCount();
+ int i;
+ for (i = 0; i < nClipPath; i++) {
+ const CFX_PathData* pPathData = ClipPath.GetPath(i);
+ if (pPathData == NULL) {
+ continue;
+ }
+ CFX_GraphStateData stroke_state;
+ if (m_Options.m_Flags & RENDER_THINLINE) {
+ stroke_state.m_LineWidth = 0;
+ }
+ m_pDevice->DrawPath(pPathData, pObj2Device, &stroke_state, 0, 0xffff0000, fill_mode);
+ }
+}
+FX_BOOL CPDF_RenderStatus::SelectClipPath(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke)
+{
+ CFX_AffineMatrix path_matrix = pPathObj->m_Matrix;
+ path_matrix.Concat(*pObj2Device);
+ if (bStroke) {
+ CFX_GraphStateData graphState(*pPathObj->m_GraphState);
+ if (m_Options.m_Flags & RENDER_THINLINE) {
+ graphState.m_LineWidth = 0;
+ }
+ return m_pDevice->SetClip_PathStroke(pPathObj->m_Path, &path_matrix, &graphState);
+ }
+ int fill_mode = pPathObj->m_FillType;
+ if (m_Options.m_Flags & RENDER_NOPATHSMOOTH) {
+ fill_mode |= FXFILL_NOPATHSMOOTH;
+ }
+ return m_pDevice->SetClip_PathFill(pPathObj->m_Path, &path_matrix, fill_mode);
+}
+FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device)
+{
+ const CPDF_GeneralStateData* pGeneralState = pPageObj->m_GeneralState;
+ int blend_type = pGeneralState ? pGeneralState->m_BlendType : FXDIB_BLEND_NORMAL;
+ if (blend_type == FXDIB_BLEND_UNSUPPORTED) {
+ return TRUE;
+ }
+ CPDF_Dictionary* pSMaskDict = pGeneralState ? (CPDF_Dictionary*)pGeneralState->m_pSoftMask : NULL;
+ if (pSMaskDict) {
+ if (pPageObj->m_Type == PDFPAGE_IMAGE &&
+ ((CPDF_ImageObject*)pPageObj)->m_pImage->GetDict()->KeyExist(FX_BSTRC("SMask"))) {
+ pSMaskDict = NULL;
+ }
+ }
+ CPDF_Dictionary* pFormResource = NULL;
+ FX_FLOAT group_alpha = 1.0f;
+ int Transparency = m_Transparency;
+ FX_BOOL bGroupTransparent = FALSE;
+ if (pPageObj->m_Type == PDFPAGE_FORM) {
+ CPDF_FormObject* pFormObj = (CPDF_FormObject*)pPageObj;
+ const CPDF_GeneralStateData *pStateData = pFormObj->m_GeneralState.GetObject();
+ if (pStateData) {
+ group_alpha = pStateData->m_FillAlpha;
+ }
+ Transparency = pFormObj->m_pForm->m_Transparency;
+ bGroupTransparent = Transparency & PDFTRANS_ISOLATED ? TRUE : FALSE;
+ if (pFormObj->m_pForm->m_pFormDict) {
+ pFormResource = pFormObj->m_pForm->m_pFormDict->GetDict("Resources");
+ }
+ }
+ FX_BOOL bTextClip = FALSE;
+ if (pPageObj->m_ClipPath.NotNull() && pPageObj->m_ClipPath.GetTextCount() &&
+ m_pDevice->GetDeviceClass() == FXDC_DISPLAY && !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) {
+ bTextClip = TRUE;
+ }
+ if ((m_Options.m_Flags & RENDER_OVERPRINT) && pPageObj->m_Type == PDFPAGE_IMAGE && pGeneralState && pGeneralState->m_FillOP && pGeneralState->m_StrokeOP) {
+ CPDF_Document* pDocument = NULL;
+ CPDF_Page* pPage = NULL;
+ if (m_pContext->m_pPageCache) {
+ pPage = m_pContext->m_pPageCache->GetPage();
+ pDocument = pPage->m_pDocument;
+ } else {
+ pDocument = ((CPDF_ImageObject*)pPageObj)->m_pImage->GetDocument();
+ }
+ CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
+ CPDF_Object* pCSObj = ((CPDF_ImageObject*)pPageObj)->m_pImage->GetStream()->GetDict()->GetElementValue(FX_BSTRC("ColorSpace"));
+ CPDF_ColorSpace* pColorSpace = pDocument->LoadColorSpace(pCSObj, pPageResources);
+ if (pColorSpace) {
+ int format = pColorSpace->GetFamily();
+ if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION || format == PDFCS_DEVICEN) {
+ blend_type = FXDIB_BLEND_DARKEN;
+ }
+ pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
+ }
+ }
+ if (pSMaskDict == NULL && group_alpha == 1.0f && blend_type == FXDIB_BLEND_NORMAL && !bTextClip && !bGroupTransparent) {
+ return FALSE;
+ }
+ FX_BOOL isolated = Transparency & PDFTRANS_ISOLATED;
+ if (m_bPrint) {
+ FX_BOOL bRet = FALSE;
+ int rendCaps = m_pDevice->GetRenderCaps();
+ if (!((Transparency & PDFTRANS_ISOLATED) || pSMaskDict || bTextClip) && (rendCaps & FXRC_BLEND_MODE)) {
+ int oldBlend = m_curBlend;
+ m_curBlend = blend_type;
+ bRet = DrawObjWithBlend(pPageObj, pObj2Device);
+ m_curBlend = oldBlend;
+ }
+ if (!bRet) {
+ DrawObjWithBackground(pPageObj, pObj2Device);
+ }
+ return TRUE;
+ }
+ FX_RECT rect = pPageObj->GetBBox(pObj2Device);
+ rect.Intersect(m_pDevice->GetClipBox());
+ if (rect.IsEmpty()) {
+ return TRUE;
+ }
+ CFX_Matrix deviceCTM = m_pDevice->GetCTM();
+ FX_FLOAT scaleX = FXSYS_abs(deviceCTM.a);
+ FX_FLOAT scaleY = FXSYS_abs(deviceCTM.d);
+ int width = FXSYS_round((FX_FLOAT)rect.Width() * scaleX);
+ int height = FXSYS_round((FX_FLOAT)rect.Height() * scaleY);
+ CFX_FxgeDevice bitmap_device;
+ CFX_DIBitmap* oriDevice = NULL;
+ if (!isolated && (m_pDevice->GetRenderCaps() & FXRC_GET_BITS)) {
+ oriDevice = FX_NEW CFX_DIBitmap;
+ if (!m_pDevice->CreateCompatibleBitmap(oriDevice, width, height)) {
+ return TRUE;
+ }
+ m_pDevice->GetDIBits(oriDevice, rect.left, rect.top);
+ }
+ if (!bitmap_device.Create(width, height, FXDIB_Argb, 0, oriDevice)) {
+ return TRUE;
+ }
+ CFX_DIBitmap* bitmap = bitmap_device.GetBitmap();
+ bitmap->Clear(0);
+ CFX_AffineMatrix new_matrix = *pObj2Device;
+ new_matrix.TranslateI(-rect.left, -rect.top);
+ new_matrix.Scale(scaleX, scaleY);
+ CFX_DIBitmap* pTextMask = NULL;
+ if (bTextClip) {
+ pTextMask = FX_NEW CFX_DIBitmap;
+ if (!pTextMask->Create(width, height, FXDIB_8bppMask)) {
+ delete pTextMask;
+ return TRUE;
+ }
+ pTextMask->Clear(0);
+ CFX_FxgeDevice text_device;
+ text_device.Attach(pTextMask);
+ for (FX_DWORD i = 0; i < pPageObj->m_ClipPath.GetTextCount(); i ++) {
+ CPDF_TextObject* textobj = pPageObj->m_ClipPath.GetText(i);
+ if (textobj == NULL) {
+ break;
+ }
+ CFX_AffineMatrix text_matrix;
+ textobj->GetTextMatrix(&text_matrix);
+ CPDF_TextRenderer::DrawTextPath(&text_device, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos,
+ textobj->m_TextState.GetFont(), textobj->m_TextState.GetFontSize(),
+ &text_matrix, &new_matrix, textobj->m_GraphState, (FX_ARGB) - 1, 0, NULL);
+ }
+ }
+ CPDF_RenderStatus bitmap_render;
+ bitmap_render.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL,
+ m_pStopObj, NULL, NULL, &m_Options, 0, m_bDropObjects, pFormResource, TRUE);
+ bitmap_render.ProcessObjectNoClip(pPageObj, &new_matrix);
+ m_bStopped = bitmap_render.m_bStopped;
+ if (pSMaskDict) {
+ CFX_AffineMatrix smask_matrix;
+ FXSYS_memcpy32(&smask_matrix, pGeneralState->m_SMaskMatrix, sizeof smask_matrix);
+ smask_matrix.Concat(*pObj2Device);
+ CFX_DIBSource* pSMaskSource = LoadSMask(pSMaskDict, &rect, &smask_matrix);
+ if (pSMaskSource) {
+ bitmap->MultiplyAlpha(pSMaskSource);
+ delete pSMaskSource;
+ }
+ }
+ if (pTextMask) {
+ bitmap->MultiplyAlpha(pTextMask);
+ delete pTextMask;
+ pTextMask = NULL;
+ }
+ if (Transparency & PDFTRANS_GROUP && group_alpha != 1.0f) {
+ bitmap->MultiplyAlpha((FX_INT32)(group_alpha * 255));
+ }
+ Transparency = m_Transparency;
+ if (pPageObj->m_Type == PDFPAGE_FORM) {
+ Transparency |= PDFTRANS_GROUP;
+ }
+ CompositeDIBitmap(bitmap, rect.left, rect.top, 0, 255, blend_type, Transparency);
+ if (oriDevice) {
+ delete oriDevice;
+ }
+ return TRUE;
+}
+CFX_DIBitmap* CPDF_RenderStatus::GetBackdrop(const CPDF_PageObject* pObj, const FX_RECT& rect, int& left, int& top,
+ FX_BOOL bBackAlphaRequired)
+{
+ FX_RECT bbox = rect;
+ bbox.Intersect(m_pDevice->GetClipBox());
+ left = bbox.left;
+ top = bbox.top;
+ CFX_Matrix deviceCTM = m_pDevice->GetCTM();
+ FX_FLOAT scaleX = FXSYS_abs(deviceCTM.a);
+ FX_FLOAT scaleY = FXSYS_abs(deviceCTM.d);
+ int width = FXSYS_round(bbox.Width() * scaleX);
+ int height = FXSYS_round(bbox.Height() * scaleY);
+ CFX_DIBitmap* pBackdrop = FX_NEW CFX_DIBitmap;
+ if (bBackAlphaRequired && !m_bDropObjects) {
+ pBackdrop->Create(width, height, FXDIB_Argb);
+ } else {
+ m_pDevice->CreateCompatibleBitmap(pBackdrop, width, height);
+ }
+ if (pBackdrop->GetBuffer() == NULL) {
+ delete pBackdrop;
+ return NULL;
+ }
+ FX_BOOL bNeedDraw;
+ if (pBackdrop->HasAlpha()) {
+ bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT);
+ } else {
+ bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_GET_BITS);
+ }
+ if (!bNeedDraw) {
+ m_pDevice->GetDIBits(pBackdrop, left, top);
+ return pBackdrop;
+ }
+ CFX_AffineMatrix FinalMatrix = m_DeviceMatrix;
+ FinalMatrix.TranslateI(-left, -top);
+ FinalMatrix.Scale(scaleX, scaleY);
+ pBackdrop->Clear(pBackdrop->HasAlpha() ? 0 : 0xffffffff);
+ CFX_FxgeDevice device;
+ device.Attach(pBackdrop);
+ m_pContext->Render(&device, pObj, &m_Options, &FinalMatrix);
+ return pBackdrop;
+}
+void CPDF_RenderContext::GetBackground(CFX_DIBitmap* pBuffer, const CPDF_PageObject* pObj,
+ const CPDF_RenderOptions* pOptions, CFX_AffineMatrix* pFinalMatrix)
+{
+ CFX_FxgeDevice device;
+ device.Attach(pBuffer);
+ if (m_pBackgroundDraw) {
+ m_pBackgroundDraw->OnDrawBackground(&device, pFinalMatrix);
+ } else {
+ FX_RECT rect(0, 0, device.GetWidth(), device.GetHeight());
+ device.FillRect(&rect, 0xffffffff);
+ }
+ Render(&device, pObj, pOptions, pFinalMatrix);
+}
+CPDF_GraphicStates* CPDF_RenderStatus::CloneObjStates(const CPDF_GraphicStates* pSrcStates, FX_BOOL bStroke)
+{
+ if (!pSrcStates) {
+ return NULL;
+ }
+ CPDF_GraphicStates* pStates = FX_NEW CPDF_GraphicStates;
+ if (!pStates) {
+ return NULL;
+ }
+ pStates->CopyStates(*pSrcStates);
+ CPDF_Color* pObjColor = bStroke ? pSrcStates->m_ColorState.GetStrokeColor() :
+ pSrcStates->m_ColorState.GetFillColor();
+ if (!pObjColor->IsNull()) {
+ CPDF_ColorStateData* pColorData = pStates->m_ColorState.GetModify();
+ pColorData->m_FillRGB = bStroke ? pSrcStates->m_ColorState.GetObject()->m_StrokeRGB :
+ pSrcStates->m_ColorState.GetObject()->m_FillRGB;
+ pColorData->m_StrokeRGB = pColorData->m_FillRGB;
+ }
+ return pStates;
+}
+CPDF_RenderContext::CPDF_RenderContext()
+{
+}
+void CPDF_RenderContext::Create(CPDF_Document* pDoc, CPDF_PageRenderCache* pPageCache,
+ CPDF_Dictionary* pPageResources, FX_BOOL bFirstLayer)
+{
+ m_pBackgroundDraw = NULL;
+ m_pDocument = pDoc;
+ m_pPageResources = pPageResources;
+ m_pPageCache = pPageCache;
+ m_bFirstLayer = bFirstLayer;
+}
+void CPDF_RenderContext::Create(CPDF_Page* pPage, FX_BOOL bFirstLayer)
+{
+ m_pBackgroundDraw = NULL;
+ m_pDocument = pPage->m_pDocument;
+ m_pPageResources = pPage->m_pPageResources;
+ m_pPageCache = pPage->GetRenderCache();
+ m_bFirstLayer = bFirstLayer;
+}
+CPDF_RenderContext::~CPDF_RenderContext()
+{
+}
+void CPDF_RenderContext::Clear()
+{
+ m_pDocument = NULL;
+ m_pPageResources = NULL;
+ m_pPageCache = NULL;
+ m_pBackgroundDraw = NULL;
+ m_bFirstLayer = TRUE;
+ m_ContentList.RemoveAll();
+}
+void CPDF_RenderContext::AppendObjectList(CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObject2Device)
+{
+ _PDF_RenderItem* pItem = m_ContentList.AddSpace();
+ pItem->m_pObjectList = pObjs;
+ if (pObject2Device) {
+ pItem->m_Matrix = *pObject2Device;
+ } else {
+ pItem->m_Matrix.SetIdentity();
+ }
+}
+void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice, const CPDF_RenderOptions* pOptions,
+ const CFX_AffineMatrix* pLastMatrix)
+{
+ Render(pDevice, NULL, pOptions, pLastMatrix);
+}
+void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice, const CPDF_PageObject* pStopObj,
+ const CPDF_RenderOptions* pOptions, const CFX_AffineMatrix* pLastMatrix)
+{
+ int count = m_ContentList.GetSize();
+ for (int j = 0; j < count; j ++) {
+ pDevice->SaveState();
+ _PDF_RenderItem* pItem = m_ContentList.GetDataPtr(j);
+ if (pLastMatrix) {
+ CFX_AffineMatrix FinalMatrix = pItem->m_Matrix;
+ FinalMatrix.Concat(*pLastMatrix);
+ CPDF_RenderStatus status;
+ status.Initialize(0, this, pDevice, pLastMatrix, pStopObj, NULL, NULL, pOptions,
+ pItem->m_pObjectList->m_Transparency, FALSE, NULL);
+ status.RenderObjectList(pItem->m_pObjectList, &FinalMatrix);
+#if !defined(_FPDFAPI_MINI_)
+ if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
+ m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
+ }
+#endif
+ if (status.m_bStopped) {
+ pDevice->RestoreState();
+ break;
+ }
+ } else {
+ CPDF_RenderStatus status;
+ status.Initialize(0, this, pDevice, NULL, pStopObj, NULL, NULL, pOptions,
+ pItem->m_pObjectList->m_Transparency, FALSE, NULL);
+ status.RenderObjectList(pItem->m_pObjectList, &pItem->m_Matrix);
+#if !defined(_FPDFAPI_MINI_)
+ if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
+ m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
+ }
+#endif
+ if (status.m_bStopped) {
+ pDevice->RestoreState();
+ break;
+ }
+ }
+ pDevice->RestoreState();
+ }
+}
+void CPDF_RenderContext::DrawObjectList(CFX_RenderDevice* pDevice, CPDF_PageObjects* pObjs,
+ const CFX_AffineMatrix* pObject2Device, const CPDF_RenderOptions* pOptions)
+{
+ AppendObjectList(pObjs, pObject2Device);
+ Render(pDevice, pOptions);
+}
+CPDF_ProgressiveRenderer::CPDF_ProgressiveRenderer()
+{
+ m_pRenderer = NULL;
+ m_pContext = NULL;
+ m_pDevice = NULL;
+ m_Status = Ready;
+}
+CPDF_ProgressiveRenderer::~CPDF_ProgressiveRenderer()
+{
+ Clear();
+}
+void CPDF_ProgressiveRenderer::Clear()
+{
+ if (m_pRenderer) {
+ delete m_pRenderer;
+ m_pDevice->RestoreState();
+ m_pRenderer = NULL;
+ }
+ m_Status = Ready;
+}
+void CPDF_ProgressiveRenderer::Start(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice,
+ const CPDF_RenderOptions* pOptions, IFX_Pause* pPause, FX_BOOL bDropObjects)
+{
+ if (m_Status != Ready) {
+ m_Status = Failed;
+ return;
+ }
+ m_pContext = pContext;
+ m_pDevice = pDevice;
+ m_pOptions = pOptions;
+ m_bDropObjects = bDropObjects;
+ if (pContext == NULL || pDevice == NULL) {
+ m_Status = Failed;
+ return;
+ }
+ m_Status = ToBeContinued;
+ m_ObjectPos = NULL;
+ m_LayerIndex = 0;
+ m_ObjectIndex = 0;
+ m_PrevLastPos = NULL;
+ Continue(pPause);
+}
+#ifdef _FPDFAPI_MINI_
+#define RENDER_STEP_LIMIT 20
+#else
+#define RENDER_STEP_LIMIT 100
+#endif
+void CPDF_ProgressiveRenderer::Continue(IFX_Pause* pPause)
+{
+ if (m_Status != ToBeContinued) {
+ return;
+ }
+ FX_DWORD nLayers = m_pContext->m_ContentList.GetSize();
+ for (; m_LayerIndex < nLayers; m_LayerIndex ++) {
+ _PDF_RenderItem* pItem = m_pContext->m_ContentList.GetDataPtr(m_LayerIndex);
+ FX_POSITION LastPos = pItem->m_pObjectList->GetLastObjectPosition();
+ if (m_ObjectPos == NULL) {
+ if (LastPos == m_PrevLastPos) {
+ if (!pItem->m_pObjectList->IsParsed()) {
+ pItem->m_pObjectList->ContinueParse(pPause);
+ if (!pItem->m_pObjectList->IsParsed()) {
+ return;
+ }
+ LastPos = pItem->m_pObjectList->GetLastObjectPosition();
+ }
+ }
+ if (LastPos == m_PrevLastPos) {
+ if (m_pRenderer) {
+ delete m_pRenderer;
+ m_pRenderer = NULL;
+ m_pDevice->RestoreState();
+ m_ObjectPos = NULL;
+ m_PrevLastPos = NULL;
+ }
+ continue;
+ }
+ if (m_PrevLastPos) {
+ m_ObjectPos = m_PrevLastPos;
+ pItem->m_pObjectList->GetNextObject(m_ObjectPos);
+ } else {
+ m_ObjectPos = pItem->m_pObjectList->GetFirstObjectPosition();
+ }
+ m_PrevLastPos = LastPos;
+ }
+ if (m_pRenderer == NULL) {
+ m_ObjectPos = pItem->m_pObjectList->GetFirstObjectPosition();
+ m_ObjectIndex = 0;
+ m_pRenderer = FX_NEW CPDF_RenderStatus();
+ m_pRenderer->Initialize(0, m_pContext, m_pDevice, NULL, NULL, NULL, NULL,
+ m_pOptions, pItem->m_pObjectList->m_Transparency, m_bDropObjects, NULL);
+ m_pDevice->SaveState();
+ m_ClipRect = m_pDevice->GetClipBox();
+ CFX_AffineMatrix device2object;
+ device2object.SetReverse(pItem->m_Matrix);
+ device2object.TransformRect(m_ClipRect);
+ }
+ int objs_to_go = CPDF_ModuleMgr::Get()->GetRenderModule()->GetConfig()->m_RenderStepLimit;
+ while (m_ObjectPos) {
+ CPDF_PageObject* pCurObj = pItem->m_pObjectList->GetObjectAt(m_ObjectPos);
+ if (pCurObj && pCurObj->m_Left <= m_ClipRect.right && pCurObj->m_Right >= m_ClipRect.left &&
+ pCurObj->m_Bottom <= m_ClipRect.top && pCurObj->m_Top >= m_ClipRect.bottom) {
+ if (m_pRenderer->ContinueSingleObject(pCurObj, &pItem->m_Matrix, pPause)) {
+ return;
+ }
+#if !defined(_FPDFAPI_MINI_)
+ if (pCurObj->m_Type == PDFPAGE_IMAGE && m_pRenderer->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
+ m_pContext->GetPageCache()->CacheOptimization(m_pRenderer->m_Options.m_dwLimitCacheSize);
+ }
+#endif
+ if (pCurObj->m_Type == PDFPAGE_FORM || pCurObj->m_Type == PDFPAGE_SHADING) {
+ objs_to_go = 0;
+ } else {
+ objs_to_go --;
+ }
+ }
+ m_ObjectIndex ++;
+ pItem->m_pObjectList->GetNextObject(m_ObjectPos);
+ if (objs_to_go == 0) {
+ if (pPause && pPause->NeedToPauseNow()) {
+ return;
+ }
+ objs_to_go = CPDF_ModuleMgr::Get()->GetRenderModule()->GetConfig()->m_RenderStepLimit;
+ }
+ }
+ if (!pItem->m_pObjectList->IsParsed()) {
+ return;
+ }
+ delete m_pRenderer;
+ m_pRenderer = NULL;
+ m_pDevice->RestoreState();
+ m_ObjectPos = NULL;
+ m_PrevLastPos = NULL;
+ if (pPause && pPause->NeedToPauseNow()) {
+ m_LayerIndex++;
+ return;
+ }
+ }
+ m_Status = Done;
+}
+int CPDF_ProgressiveRenderer::EstimateProgress()
+{
+ if (!m_pContext) {
+ return 0;
+ }
+ FX_DWORD nLayers = m_pContext->m_ContentList.GetSize();
+ int nTotal = 0, nRendered = 0;
+ for (FX_DWORD layer = 0; layer < nLayers; layer ++) {
+ _PDF_RenderItem* pItem = m_pContext->m_ContentList.GetDataPtr(layer);
+ int nObjs = pItem->m_pObjectList->CountObjects();
+ if (layer == m_LayerIndex) {
+ nRendered += m_ObjectIndex;
+ } else if (layer < m_LayerIndex) {
+ nRendered += nObjs;
+ }
+ nTotal += nObjs;
+ }
+ if (nTotal == 0) {
+ return 0;
+ }
+ return 100 * nRendered / nTotal;
+}
+CPDF_TransferFunc* CPDF_DocRenderData::GetTransferFunc(CPDF_Object* pObj)
+{
+ if (pObj == NULL) {
+ return NULL;
+ }
+ CPDF_CountedObject<CPDF_TransferFunc*>* pTransferCounter;
+ if (!m_TransferFuncMap.Lookup(pObj, pTransferCounter)) {
+ CPDF_TransferFunc* pTransfer = NULL;
+ CPDF_Function* pFuncs[3] = {NULL, NULL, NULL};
+ FX_BOOL bUniTransfer = TRUE;
+ int i;
+ FX_BOOL bIdentity = TRUE;
+ if (pObj->GetType() == PDFOBJ_ARRAY) {
+ bUniTransfer = FALSE;
+ CPDF_Array* pArray = (CPDF_Array*)pObj;
+ if (pArray->GetCount() < 3) {
+ return NULL;
+ }
+ for (FX_DWORD i = 0; i < 3; i ++) {
+ pFuncs[2 - i] = CPDF_Function::Load(pArray->GetElementValue(i));
+ if (pFuncs[2 - i] == NULL) {
+ return NULL;
+ }
+ }
+ } else {
+ pFuncs[0] = CPDF_Function::Load(pObj);
+ if (pFuncs[0] == NULL) {
+ return NULL;
+ }
+ }
+ pTransfer = FX_NEW CPDF_TransferFunc;
+ pTransfer->m_pPDFDoc = m_pPDFDoc;
+ pTransferCounter = FX_NEW CPDF_CountedObject<CPDF_TransferFunc*>;
+ pTransferCounter->m_nCount = 1;
+ pTransferCounter->m_Obj = pTransfer;
+ m_TransferFuncMap.SetAt(pObj, pTransferCounter);
+ static const int kMaxOutputs = 16;
+ FX_FLOAT output[kMaxOutputs];
+ FXSYS_memset32(output, 0, sizeof(output));
+ FX_FLOAT input;
+ int noutput;
+ for (int v = 0; v < 256; v ++) {
+ input = (FX_FLOAT)v / 255.0f;
+ if (bUniTransfer) {
+ if (pFuncs[0] && pFuncs[0]->CountOutputs() <= kMaxOutputs) {
+ pFuncs[0]->Call(&input, 1, output, noutput);
+ }
+ int o = FXSYS_round(output[0] * 255);
+ if (o != v) {
+ bIdentity = FALSE;
+ }
+ for (i = 0; i < 3; i ++) {
+ pTransfer->m_Samples[i * 256 + v] = o;
+ }
+ } else
+ for (i = 0; i < 3; i ++) {
+ if (pFuncs[i] && pFuncs[i]->CountOutputs() <= kMaxOutputs) {
+ pFuncs[i]->Call(&input, 1, output, noutput);
+ int o = FXSYS_round(output[0] * 255);
+ if (o != v) {
+ bIdentity = FALSE;
+ }
+ pTransfer->m_Samples[i * 256 + v] = o;
+ } else {
+ pTransfer->m_Samples[i * 256 + v] = v;
+ }
+ }
+ }
+ for (i = 0; i < 3; i ++)
+ if (pFuncs[i]) {
+ delete pFuncs[i];
+ }
+ pTransfer->m_bIdentity = bIdentity;
+ }
+ pTransferCounter->m_nCount++;
+ return pTransferCounter->m_Obj;
+}
+void CPDF_DocRenderData::ReleaseTransferFunc(CPDF_Object* pObj)
+{
+ CPDF_CountedObject<CPDF_TransferFunc*>* pTransferCounter;
+ if (!m_TransferFuncMap.Lookup(pObj, pTransferCounter)) {
+ return;
+ }
+ pTransferCounter->m_nCount--;
+}
+CPDF_RenderConfig::CPDF_RenderConfig()
+{
+ m_HalftoneLimit = 0;
+#ifdef _FPDFAPI_MINI_
+ m_RenderStepLimit = 20;
+#else
+ m_RenderStepLimit = 100;
+#endif
+}
+CPDF_RenderConfig::~CPDF_RenderConfig()
+{
+}
+CPDF_DeviceBuffer::CPDF_DeviceBuffer()
+{
+ m_pBitmap = NULL;
+ m_pDevice = NULL;
+ m_pContext = NULL;
+ m_pObject = NULL;
+}
+CPDF_DeviceBuffer::~CPDF_DeviceBuffer()
+{
+ if (m_pBitmap) {
+ delete m_pBitmap;
+ }
+}
+FX_BOOL CPDF_DeviceBuffer::Initialize(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice, FX_RECT* pRect,
+ const CPDF_PageObject* pObj, int max_dpi)
+{
+ m_pDevice = pDevice;
+ m_pContext = pContext;
+ m_Rect = *pRect;
+ m_pObject = pObj;
+ m_Matrix.TranslateI(-pRect->left, -pRect->top);
+#if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_
+ int horz_size = pDevice->GetDeviceCaps(FXDC_HORZ_SIZE);
+ int vert_size = pDevice->GetDeviceCaps(FXDC_VERT_SIZE);
+ if (horz_size && vert_size && max_dpi) {
+ int dpih = pDevice->GetDeviceCaps(FXDC_PIXEL_WIDTH) * 254 / (horz_size * 10);
+ int dpiv = pDevice->GetDeviceCaps(FXDC_PIXEL_HEIGHT) * 254 / (vert_size * 10);
+ if (dpih > max_dpi) {
+ m_Matrix.Scale((FX_FLOAT)(max_dpi) / dpih, 1.0f);
+ }
+ if (dpiv > max_dpi) {
+ m_Matrix.Scale(1.0f, (FX_FLOAT)(max_dpi) / (FX_FLOAT)dpiv);
+ }
+ }
+#ifdef _FPDFAPI_MINI_
+ m_Matrix.Scale(0.5f, 0.5f);
+#endif
+#endif
+ CFX_Matrix ctm = m_pDevice->GetCTM();
+ FX_FLOAT fScaleX = FXSYS_fabs(ctm.a);
+ FX_FLOAT fScaleY = FXSYS_fabs(ctm.d);
+ m_Matrix.Concat(fScaleX, 0, 0, fScaleY, 0, 0);
+ CFX_FloatRect rect(*pRect);
+ m_Matrix.TransformRect(rect);
+ FX_RECT bitmap_rect = rect.GetOutterRect();
+ m_pBitmap = FX_NEW CFX_DIBitmap;
+ m_pBitmap->Create(bitmap_rect.Width(), bitmap_rect.Height(), FXDIB_Argb);
+ return TRUE;
+}
+void CPDF_DeviceBuffer::OutputToDevice()
+{
+ if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_GET_BITS) {
+ if (m_Matrix.a == 1.0f && m_Matrix.d == 1.0f) {
+ m_pDevice->SetDIBits(m_pBitmap, m_Rect.left, m_Rect.top);
+ } else {
+ m_pDevice->StretchDIBits(m_pBitmap, m_Rect.left, m_Rect.top, m_Rect.Width(), m_Rect.Height());
+ }
+ } else {
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ CFX_DIBitmap buffer;
+ m_pDevice->CreateCompatibleBitmap(&buffer, m_pBitmap->GetWidth(), m_pBitmap->GetHeight());
+ m_pContext->GetBackground(&buffer, m_pObject, NULL, &m_Matrix);
+ buffer.CompositeBitmap(0, 0, buffer.GetWidth(), buffer.GetHeight(), m_pBitmap, 0, 0);
+ m_pDevice->StretchDIBits(&buffer, m_Rect.left, m_Rect.top, m_Rect.Width(), m_Rect.Height());
+#endif
+ }
+}
+CPDF_ScaledRenderBuffer::CPDF_ScaledRenderBuffer()
+{
+ m_pBitmapDevice = NULL;
+}
+CPDF_ScaledRenderBuffer::~CPDF_ScaledRenderBuffer()
+{
+ if (m_pBitmapDevice) {
+ delete m_pBitmapDevice;
+ }
+}
+#ifndef _FPDFAPI_MINI_
+#define _FPDFAPI_IMAGESIZE_LIMIT_ (30 * 1024 * 1024)
+#else
+#define _FPDFAPI_IMAGESIZE_LIMIT_ (10 * 1024 * 1024)
+#endif
+FX_BOOL CPDF_ScaledRenderBuffer::Initialize(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice, FX_RECT* pRect,
+ const CPDF_PageObject* pObj, const CPDF_RenderOptions *pOptions, int max_dpi)
+{
+ FXSYS_assert(pRect != NULL);
+ m_pDevice = pDevice;
+ if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_GET_BITS) {
+ return TRUE;
+ }
+ m_pContext = pContext;
+ m_Rect = *pRect;
+ m_pObject = pObj;
+ m_Matrix.TranslateI(-pRect->left, -pRect->top);
+ int horz_size = pDevice->GetDeviceCaps(FXDC_HORZ_SIZE);
+ int vert_size = pDevice->GetDeviceCaps(FXDC_VERT_SIZE);
+ if (horz_size && vert_size && max_dpi) {
+ int dpih = pDevice->GetDeviceCaps(FXDC_PIXEL_WIDTH) * 254 / (horz_size * 10);
+ int dpiv = pDevice->GetDeviceCaps(FXDC_PIXEL_HEIGHT) * 254 / (vert_size * 10);
+ if (dpih > max_dpi) {
+ m_Matrix.Scale((FX_FLOAT)(max_dpi) / dpih, 1.0f);
+ }
+ if (dpiv > max_dpi) {
+ m_Matrix.Scale(1.0f, (FX_FLOAT)(max_dpi) / (FX_FLOAT)dpiv);
+ }
+ }
+ m_pBitmapDevice = FX_NEW CFX_FxgeDevice;
+ FXDIB_Format dibFormat = FXDIB_Rgb;
+ FX_INT32 bpp = 24;
+ if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_ALPHA_OUTPUT) {
+ dibFormat = FXDIB_Argb;
+ bpp = 32;
+ }
+ CFX_FloatRect rect;
+ FX_INT32 iWidth, iHeight, iPitch;
+ while (1) {
+ rect = *pRect;
+ m_Matrix.TransformRect(rect);
+ FX_RECT bitmap_rect = rect.GetOutterRect();
+ iWidth = bitmap_rect.Width();
+ iHeight = bitmap_rect.Height();
+ iPitch = (iWidth * bpp + 31) / 32 * 4;
+ if (iWidth * iHeight < 1) {
+ return FALSE;
+ }
+ if (iPitch * iHeight <= _FPDFAPI_IMAGESIZE_LIMIT_ &&
+ m_pBitmapDevice->Create(iWidth, iHeight, dibFormat)) {
+ break;
+ }
+ m_Matrix.Scale(0.5f, 0.5f);
+ }
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ m_pContext->GetBackground(m_pBitmapDevice->GetBitmap(), m_pObject, pOptions, &m_Matrix);
+#endif
+ return TRUE;
+}
+void CPDF_ScaledRenderBuffer::OutputToDevice()
+{
+ if (m_pBitmapDevice) {
+ m_pDevice->StretchDIBits(m_pBitmapDevice->GetBitmap(), m_Rect.left, m_Rect.top, m_Rect.Width(), m_Rect.Height());
+ }
+}
+FX_BOOL IPDF_OCContext::CheckObjectVisible(const CPDF_PageObject* pObj)
+{
+ const CPDF_ContentMarkData* pData = pObj->m_ContentMark;
+ int nItems = pData->CountItems();
+ for (int i = 0; i < nItems; i ++) {
+ CPDF_ContentMarkItem& item = pData->GetItem(i);
+ if (item.GetName() == FX_BSTRC("OC") && item.GetParamType() == CPDF_ContentMarkItem::PropertiesDict) {
+ CPDF_Dictionary* pOCG = (CPDF_Dictionary*)item.GetParam();
+ if (!CheckOCGVisible(pOCG)) {
+ return FALSE;
+ }
+ }
+ }
+ return TRUE;
+}
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp new file mode 100644 index 0000000000..c5be3391b8 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp @@ -0,0 +1,389 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#include "../../../include/fxge/fx_ge.h"
+#include "../fpdf_page/pageint.h"
+#include "render_int.h"
+struct CACHEINFO {
+ FX_DWORD time;
+ CPDF_Stream* pStream;
+};
+extern "C" {
+ static int compare(const void* data1, const void* data2)
+ {
+ return ((CACHEINFO*)data1)->time - ((CACHEINFO*)data2)->time;
+ }
+};
+void CPDF_Page::ClearRenderCache()
+{
+ if (m_pPageRender) {
+ m_pPageRender->ClearAll();
+ }
+}
+void CPDF_PageRenderCache::ClearAll()
+{
+ FX_POSITION pos = m_ImageCaches.GetStartPosition();
+ while (pos) {
+ FX_LPVOID key, value;
+ m_ImageCaches.GetNextAssoc(pos, key, value);
+ delete (CPDF_ImageCache*)value;
+ }
+ m_ImageCaches.RemoveAll();
+ m_nCacheSize = 0;
+ m_nTimeCount = 0;
+}
+void CPDF_PageRenderCache::CacheOptimization(FX_INT32 dwLimitCacheSize)
+{
+ if (m_nCacheSize <= (FX_DWORD)dwLimitCacheSize) {
+ return;
+ }
+ int nCount = m_ImageCaches.GetCount();
+ CACHEINFO* pCACHEINFO = (CACHEINFO*)FX_Alloc(FX_BYTE, (sizeof (CACHEINFO)) * nCount);
+ FX_POSITION pos = m_ImageCaches.GetStartPosition();
+ int i = 0;
+ while (pos) {
+ FX_LPVOID key, value;
+ m_ImageCaches.GetNextAssoc(pos, key, value);
+ pCACHEINFO[i].time = ((CPDF_ImageCache*)value)->GetTimeCount();
+ pCACHEINFO[i++].pStream = ((CPDF_ImageCache*)value)->GetStream();
+ }
+ FXSYS_qsort(pCACHEINFO, nCount, sizeof (CACHEINFO), compare);
+ FX_DWORD nTimeCount = m_nTimeCount;
+ if (nTimeCount + 1 < nTimeCount) {
+ for (i = 0; i < nCount; i ++) {
+ ((CPDF_ImageCache*)(m_ImageCaches[pCACHEINFO[i].pStream]))->m_dwTimeCount = i;
+ }
+ m_nTimeCount = nCount;
+ }
+ i = 0;
+ while(nCount > 15) {
+ ClearImageCache(pCACHEINFO[i++].pStream);
+ nCount--;
+ }
+ while (m_nCacheSize > (FX_DWORD)dwLimitCacheSize) {
+ ClearImageCache(pCACHEINFO[i++].pStream);
+ }
+ FX_Free(pCACHEINFO);
+}
+void CPDF_PageRenderCache::ClearImageCache(CPDF_Stream* pStream)
+{
+ FX_LPVOID value = m_ImageCaches.GetValueAt(pStream);
+ if (value == NULL) {
+ m_ImageCaches.RemoveKey(pStream);
+ return;
+ }
+ m_nCacheSize -= ((CPDF_ImageCache*)value)->EstimateSize();
+ delete (CPDF_ImageCache*)value;
+ m_ImageCaches.RemoveKey(pStream);
+}
+FX_DWORD CPDF_PageRenderCache::EstimateSize()
+{
+ FX_DWORD dwSize = 0;
+ FX_POSITION pos = m_ImageCaches.GetStartPosition();
+ while (pos) {
+ FX_LPVOID key, value;
+ m_ImageCaches.GetNextAssoc(pos, key, value);
+ dwSize += ((CPDF_ImageCache*)value)->EstimateSize();
+ }
+ m_nCacheSize = dwSize;
+ return dwSize;
+}
+FX_DWORD CPDF_PageRenderCache::GetCachedSize(CPDF_Stream* pStream) const
+{
+ if (pStream == NULL) {
+ return m_nCacheSize;
+ }
+ CPDF_ImageCache* pImageCache;
+ if (!m_ImageCaches.Lookup(pStream, (FX_LPVOID&)pImageCache)) {
+ return 0;
+ }
+ return pImageCache->EstimateSize();
+}
+void CPDF_PageRenderCache::GetCachedBitmap(CPDF_Stream* pStream, CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor,
+ FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus,
+ FX_INT32 downsampleWidth, FX_INT32 downsampleHeight)
+{
+ CPDF_ImageCache* pImageCache;
+ FX_BOOL bFind = m_ImageCaches.Lookup(pStream, (FX_LPVOID&)pImageCache);
+ if (!bFind) {
+ pImageCache = FX_NEW CPDF_ImageCache(m_pPage->m_pDocument, pStream);
+ }
+ m_nTimeCount ++;
+ FX_BOOL bCached = pImageCache->GetCachedBitmap(pBitmap, pMask, MatteColor, m_pPage->m_pPageResources, bStdCS, GroupFamily, bLoadMask, pRenderStatus, downsampleWidth, downsampleHeight);
+ if (!bFind) {
+ m_ImageCaches.SetAt(pStream, pImageCache);
+ }
+ if (!bCached) {
+ m_nCacheSize += pImageCache->EstimateSize();
+ }
+}
+FX_BOOL CPDF_PageRenderCache::StartGetCachedBitmap(CPDF_Stream* pStream, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus, FX_INT32 downsampleWidth, FX_INT32 downsampleHeight)
+{
+ m_bCurFindCache = m_ImageCaches.Lookup(pStream, (FX_LPVOID&)m_pCurImageCache);
+ if (!m_bCurFindCache) {
+ m_pCurImageCache = FX_NEW CPDF_ImageCache(m_pPage->m_pDocument, pStream);
+ }
+ int ret = m_pCurImageCache->StartGetCachedBitmap(pRenderStatus->m_pFormResource, m_pPage->m_pPageResources, bStdCS, GroupFamily, bLoadMask, pRenderStatus, downsampleWidth, downsampleHeight);
+ if (ret == 2) {
+ return TRUE;
+ }
+ m_nTimeCount ++;
+ if (!m_bCurFindCache) {
+ m_ImageCaches.SetAt(pStream, m_pCurImageCache);
+ }
+ if (!ret) {
+ m_nCacheSize += m_pCurImageCache->EstimateSize();
+ }
+ return FALSE;
+}
+FX_BOOL CPDF_PageRenderCache::Continue(IFX_Pause* pPause)
+{
+ int ret = m_pCurImageCache->Continue(pPause);
+ if (ret == 2) {
+ return TRUE;
+ }
+ m_nTimeCount ++;
+ if (!m_bCurFindCache) {
+ m_ImageCaches.SetAt(m_pCurImageCache->GetStream(), m_pCurImageCache);
+ }
+ if (!ret) {
+ m_nCacheSize += m_pCurImageCache->EstimateSize();
+ }
+ return FALSE;
+}
+void CPDF_PageRenderCache::ResetBitmap(CPDF_Stream* pStream, const CFX_DIBitmap* pBitmap)
+{
+ CPDF_ImageCache* pImageCache;
+ if (!m_ImageCaches.Lookup(pStream, (FX_LPVOID&)pImageCache)) {
+ if (pBitmap == NULL) {
+ return;
+ }
+ pImageCache = FX_NEW CPDF_ImageCache(m_pPage->m_pDocument, pStream);
+ m_ImageCaches.SetAt(pStream, pImageCache);
+ }
+ int oldsize = pImageCache->EstimateSize();
+ pImageCache->Reset(pBitmap);
+ m_nCacheSize = pImageCache->EstimateSize() - oldsize;
+}
+CPDF_ImageCache::CPDF_ImageCache(CPDF_Document* pDoc, CPDF_Stream* pStream)
+ : m_pDocument(pDoc)
+ , m_pStream(pStream)
+ , m_pCachedBitmap(NULL)
+ , m_pCachedMask(NULL)
+ , m_dwCacheSize(0)
+ , m_dwTimeCount(0)
+ , m_pCurBitmap(NULL)
+ , m_pCurMask(NULL)
+ , m_MatteColor(0)
+ , m_pRenderStatus(NULL)
+{
+}
+CPDF_ImageCache::~CPDF_ImageCache()
+{
+ if (m_pCachedBitmap) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ }
+ if (m_pCachedMask) {
+ delete m_pCachedMask;
+ m_pCachedMask = NULL;
+ }
+}
+void CPDF_ImageCache::Reset(const CFX_DIBitmap* pBitmap)
+{
+ if (m_pCachedBitmap) {
+ delete m_pCachedBitmap;
+ }
+ m_pCachedBitmap = NULL;
+ if (pBitmap) {
+ m_pCachedBitmap = pBitmap->Clone();
+ }
+ CalcSize();
+}
+void CPDF_PageRenderCache::ClearImageData()
+{
+ FX_POSITION pos = m_ImageCaches.GetStartPosition();
+ while (pos) {
+ FX_LPVOID key, value;
+ m_ImageCaches.GetNextAssoc(pos, key, value);
+ ((CPDF_ImageCache*)value)->ClearImageData();
+ }
+}
+void CPDF_ImageCache::ClearImageData()
+{
+ if (m_pCachedBitmap && m_pCachedBitmap->GetBuffer() == NULL) {
+ ((CPDF_DIBSource*)m_pCachedBitmap)->ClearImageData();
+ }
+}
+static FX_DWORD FPDF_ImageCache_EstimateImageSize(const CFX_DIBSource* pDIB)
+{
+ return pDIB && pDIB->GetBuffer() ? (FX_DWORD)pDIB->GetHeight() * pDIB->GetPitch() + (FX_DWORD)pDIB->GetPaletteSize() * 4 : 0;
+}
+FX_BOOL CPDF_ImageCache::GetCachedBitmap(CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus,
+ FX_INT32 downsampleWidth, FX_INT32 downsampleHeight)
+{
+ if (m_pCachedBitmap) {
+ pBitmap = m_pCachedBitmap;
+ pMask = m_pCachedMask;
+ MatteColor = m_MatteColor;
+ return TRUE;
+ }
+ if (!pRenderStatus) {
+ return FALSE;
+ }
+ CPDF_RenderContext*pContext = pRenderStatus->GetContext();
+ CPDF_PageRenderCache* pPageRenderCache = pContext->m_pPageCache;
+ m_dwTimeCount = pPageRenderCache->GetTimeCount();
+ CPDF_DIBSource* pSrc = FX_NEW CPDF_DIBSource;
+ CPDF_DIBSource* pMaskSrc = NULL;
+ if (!pSrc->Load(m_pDocument, m_pStream, &pMaskSrc, &MatteColor, pRenderStatus->m_pFormResource, pPageResources, bStdCS, GroupFamily, bLoadMask)) {
+ delete pSrc;
+ pBitmap = NULL;
+ return FALSE;
+ }
+ m_MatteColor = MatteColor;
+#if !defined(_FPDFAPI_MINI_)
+ if (pSrc->GetPitch() * pSrc->GetHeight() < FPDF_HUGE_IMAGE_SIZE) {
+ m_pCachedBitmap = pSrc->Clone();
+ delete pSrc;
+ } else {
+ m_pCachedBitmap = pSrc;
+ }
+ if (pMaskSrc) {
+ m_pCachedMask = pMaskSrc->Clone();
+ delete pMaskSrc;
+ }
+#else
+ if (pSrc->GetFormat() == FXDIB_8bppRgb && pSrc->GetPalette() &&
+ pSrc->GetHeight() * pSrc->GetWidth() * 3 < 1024) {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ m_pCachedBitmap = pSrc->CloneConvert(FXDIB_Rgb32);
+#else
+ m_pCachedBitmap = pSrc->CloneConvert(FXDIB_Rgb);
+#endif
+ delete pSrc;
+ } else if (pSrc->GetPitch() * pSrc->GetHeight() < 102400) {
+ m_pCachedBitmap = pSrc->Clone();
+ delete pSrc;
+ } else {
+ m_pCachedBitmap = pSrc;
+ }
+ m_pCachedMask = pMaskSrc;
+#endif
+ pBitmap = m_pCachedBitmap;
+ pMask = m_pCachedMask;
+ CalcSize();
+ return FALSE;
+}
+CFX_DIBSource* CPDF_ImageCache::DetachBitmap()
+{
+ CFX_DIBSource* pDIBSource = m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ return pDIBSource;
+}
+CFX_DIBSource* CPDF_ImageCache::DetachMask()
+{
+ CFX_DIBSource* pDIBSource = m_pCurMask;
+ m_pCurMask = NULL;
+ return pDIBSource;
+}
+int CPDF_ImageCache::StartGetCachedBitmap(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources, FX_BOOL bStdCS,
+ FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus,
+ FX_INT32 downsampleWidth, FX_INT32 downsampleHeight)
+{
+ if (m_pCachedBitmap) {
+ m_pCurBitmap = m_pCachedBitmap;
+ m_pCurMask = m_pCachedMask;
+ return 1;
+ }
+ if (!pRenderStatus) {
+ return 0;
+ }
+ m_pRenderStatus = pRenderStatus;
+ m_pCurBitmap = FX_NEW CPDF_DIBSource;
+ int ret = ((CPDF_DIBSource*)m_pCurBitmap)->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResources, pPageResources, bStdCS, GroupFamily, bLoadMask);
+ if (ret == 2) {
+ return ret;
+ }
+ if (!ret) {
+ delete m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ return 0;
+ }
+ ContinueGetCachedBitmap();
+ return 0;
+}
+int CPDF_ImageCache::ContinueGetCachedBitmap()
+{
+ m_MatteColor = ((CPDF_DIBSource*)m_pCurBitmap)->m_MatteColor;
+ m_pCurMask = ((CPDF_DIBSource*)m_pCurBitmap)->DetachMask();
+ CPDF_RenderContext*pContext = m_pRenderStatus->GetContext();
+ CPDF_PageRenderCache* pPageRenderCache = pContext->m_pPageCache;
+ m_dwTimeCount = pPageRenderCache->GetTimeCount();
+#if !defined(_FPDFAPI_MINI_)
+ if (m_pCurBitmap->GetPitch() * m_pCurBitmap->GetHeight() < FPDF_HUGE_IMAGE_SIZE) {
+ m_pCachedBitmap = m_pCurBitmap->Clone();
+ delete m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ } else {
+ m_pCachedBitmap = m_pCurBitmap;
+ }
+ if (m_pCurMask) {
+ m_pCachedMask = m_pCurMask->Clone();
+ delete m_pCurMask;
+ m_pCurMask = NULL;
+ }
+#else
+ if (m_pCurBitmap->GetFormat() == FXDIB_8bppRgb && m_pCurBitmap->GetPalette() &&
+ m_pCurBitmap->GetHeight() * m_pCurBitmap->GetWidth() * 3 < 1024) {
+ m_pCachedBitmap = m_pCurBitmap->CloneConvert(FXDIB_Rgb32);
+ m_pCachedBitmap = m_pCurBitmap->CloneConvert(FXDIB_Rgb);
+ delete m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ } else if (m_pCurBitmap->GetPitch() * m_pCurBitmap->GetHeight() < 102400) {
+ m_pCachedBitmap = m_pCurBitmap->Clone();
+ delete m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ } else {
+ m_pCachedBitmap = m_pCurBitmap;
+ }
+ m_pCachedMask = m_pCurMask;
+#endif
+ m_pCurBitmap = m_pCachedBitmap;
+ m_pCurMask = m_pCachedMask;
+ CalcSize();
+ return 0;
+}
+int CPDF_ImageCache::Continue(IFX_Pause* pPause)
+{
+ int ret = ((CPDF_DIBSource*)m_pCurBitmap)->ContinueLoadDIBSource(pPause);
+ if (ret == 2) {
+ return ret;
+ }
+ if (!ret) {
+ delete m_pCurBitmap;
+ m_pCurBitmap = NULL;
+ return 0;
+ }
+ ContinueGetCachedBitmap();
+ return 0;
+}
+void CPDF_ImageCache::CalcSize()
+{
+ m_dwCacheSize = FPDF_ImageCache_EstimateImageSize(m_pCachedBitmap) + FPDF_ImageCache_EstimateImageSize(m_pCachedMask);
+}
+void CPDF_Document::ClearRenderFont()
+{
+ if (m_pDocRender) {
+ CFX_FontCache* pCache = m_pDocRender->GetFontCache();
+ if (pCache) {
+ pCache->FreeCache(FALSE);
+ }
+ }
+}
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp new file mode 100644 index 0000000000..c2a7393739 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp @@ -0,0 +1,1165 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fxge/fx_ge.h"
+#include "../../../include/fxcodec/fx_codec.h"
+#include "../../../include/fpdfapi/fpdf_module.h"
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#include "../fpdf_page/pageint.h"
+#include "render_int.h"
+FX_BOOL CPDF_RenderStatus::ProcessImage(CPDF_ImageObject* pImageObj, const CFX_AffineMatrix* pObj2Device)
+{
+ CPDF_ImageRenderer render;
+ if (render.Start(this, pImageObj, pObj2Device, m_bStdCS, m_curBlend)) {
+ render.Continue(NULL);
+ }
+#ifdef _FPDFAPI_MINI_
+ if (m_DitherBits) {
+ DitherObjectArea(pImageObj, pObj2Device);
+ }
+#endif
+ return render.m_Result;
+}
+#if defined(_FPDFAPI_MINI_)
+FX_BOOL CPDF_RenderStatus::ProcessInlines(CPDF_InlineImages* pInlines, const CFX_AffineMatrix* pObj2Device)
+{
+ int bitmap_alpha = 255;
+ if (!pInlines->m_GeneralState.IsNull()) {
+ bitmap_alpha = FXSYS_round(pInlines->m_GeneralState.GetObject()->m_FillAlpha * 255);
+ }
+ if (pInlines->m_pStream) {
+ CPDF_DIBSource dibsrc;
+ if (!dibsrc.Load(m_pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) {
+ return TRUE;
+ }
+ pInlines->m_pBitmap = dibsrc.Clone();
+ pInlines->m_pStream->Release();
+ pInlines->m_pStream = NULL;
+ }
+ if (pInlines->m_pBitmap == NULL) {
+ return TRUE;
+ }
+ FX_ARGB fill_argb = 0;
+ if (pInlines->m_pBitmap->IsAlphaMask()) {
+ fill_argb = GetFillArgb(pInlines);
+ }
+ int flags = 0;
+ if (m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
+ flags |= RENDER_FORCE_DOWNSAMPLE;
+ } else if (m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
+ flags = 0;
+ }
+ for (int i = 0; i < pInlines->m_Matrices.GetSize(); i ++) {
+ CFX_AffineMatrix image_matrix = pInlines->m_Matrices.GetAt(i);
+ image_matrix.Concat(*pObj2Device);
+ CPDF_ImageRenderer renderer;
+ if (renderer.Start(this, pInlines->m_pBitmap, fill_argb, bitmap_alpha, &image_matrix, flags, FALSE, m_curBlend)) {
+ renderer.Continue(NULL);
+ }
+ }
+ return TRUE;
+}
+#endif
+void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap, int left, int top, FX_ARGB mask_argb,
+ int bitmap_alpha, int blend_mode, int Transparency)
+{
+ if (pDIBitmap == NULL) {
+ return;
+ }
+ FX_BOOL bIsolated = Transparency & PDFTRANS_ISOLATED;
+ FX_BOOL bGroup = Transparency & PDFTRANS_GROUP;
+ if (blend_mode == FXDIB_BLEND_NORMAL) {
+ if (!pDIBitmap->IsAlphaMask()) {
+ if (bitmap_alpha < 255) {
+ pDIBitmap->MultiplyAlpha(bitmap_alpha);
+ }
+ if (m_pDevice->SetDIBits(pDIBitmap, left, top)) {
+ return;
+ }
+ } else {
+ FX_DWORD fill_argb = m_Options.TranslateColor(mask_argb);
+ if (bitmap_alpha < 255) {
+ ((FX_BYTE*)&fill_argb)[3] = ((FX_BYTE*)&fill_argb)[3] * bitmap_alpha / 255;
+ }
+ if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) {
+ return;
+ }
+ }
+ }
+ FX_BOOL bBackAlphaRequired = blend_mode && bIsolated && !m_bDropObjects;
+ FX_BOOL bGetBackGround = ((m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT)) ||
+ (!(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT) && (m_pDevice->GetRenderCaps()
+ & FXRC_GET_BITS) && !bBackAlphaRequired);
+ if (bGetBackGround) {
+ if (bIsolated || !bGroup) {
+ if (pDIBitmap->IsAlphaMask()) {
+ return;
+ }
+ m_pDevice->SetDIBits(pDIBitmap, left, top, blend_mode);
+ } else {
+ FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), top + pDIBitmap->GetHeight());
+ rect.Intersect(m_pDevice->GetClipBox());
+ CFX_DIBitmap* pClone = NULL;
+ FX_BOOL bClone = FALSE;
+ if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) {
+ bClone = TRUE;
+ pClone = m_pDevice->GetBackDrop()->Clone(&rect);
+ CFX_DIBitmap *pForeBitmap = m_pDevice->GetBitmap();
+ pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), pForeBitmap, rect.left, rect.top);
+ left = left >= 0 ? 0 : left;
+ top = top >= 0 ? 0 : top;
+ if (!pDIBitmap->IsAlphaMask())
+ pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), pDIBitmap,
+ left, top, blend_mode);
+ else
+ pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(), pDIBitmap,
+ mask_argb, left, top, blend_mode);
+ } else {
+ pClone = pDIBitmap;
+ }
+ if (m_pDevice->GetBackDrop()) {
+ m_pDevice->SetDIBits(pClone, rect.left, rect.top);
+ } else {
+ if (pDIBitmap->IsAlphaMask()) {
+ return;
+ }
+ m_pDevice->SetDIBits(pDIBitmap, rect.left, rect.top, blend_mode);
+ }
+ if (bClone) {
+ delete pClone;
+ }
+ }
+ return;
+ }
+ int back_left, back_top;
+ FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), top + pDIBitmap->GetHeight());
+ CFX_DIBitmap* pBackdrop = GetBackdrop(m_pCurObj, rect, back_left, back_top, blend_mode > FXDIB_BLEND_NORMAL && bIsolated);
+ if (!pBackdrop) {
+ return;
+ }
+ if (!pDIBitmap->IsAlphaMask())
+ pBackdrop->CompositeBitmap(left - back_left, top - back_top, pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), pDIBitmap,
+ 0, 0, blend_mode);
+ else
+ pBackdrop->CompositeMask(left - back_left, top - back_top, pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), pDIBitmap,
+ mask_argb, 0, 0, blend_mode);
+ CFX_DIBitmap* pBackdrop1 = FX_NEW CFX_DIBitmap;
+ pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(), FXDIB_Rgb32);
+ pBackdrop1->Clear((FX_DWORD) - 1);
+ pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(), pBackdrop->GetHeight(), pBackdrop, 0, 0);
+ delete pBackdrop;
+ pBackdrop = pBackdrop1;
+ m_pDevice->SetDIBits(pBackdrop, back_left, back_top);
+ delete pBackdrop;
+}
+FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb)
+{
+ return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)], m_Samples[256 + FXSYS_GetGValue(rgb)],
+ m_Samples[512 + FXSYS_GetBValue(rgb)]);
+}
+CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc)
+{
+ CPDF_DIBTransferFunc* pDest = FX_NEW CPDF_DIBTransferFunc(this);
+ pDest->LoadSrc(pSrc, bAutoDropSrc);
+ return pDest;
+}
+FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat()
+{
+ if (m_pSrc->IsAlphaMask()) {
+ return FXDIB_8bppMask;
+ }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb32;
+#else
+ return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb;
+#endif
+}
+CPDF_DIBTransferFunc::CPDF_DIBTransferFunc(const CPDF_TransferFunc* pTransferFunc)
+{
+ m_RampR = pTransferFunc->m_Samples;
+ m_RampG = &pTransferFunc->m_Samples[256];
+ m_RampB = &pTransferFunc->m_Samples[512];
+}
+void CPDF_DIBTransferFunc::TranslateScanline(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf) const
+{
+ int i;
+ FX_BOOL bSkip = FALSE;
+ switch (m_pSrc->GetFormat()) {
+ case FXDIB_1bppRgb: {
+ int r0 = m_RampR[0], g0 = m_RampG[0], b0 = m_RampB[0];
+ int r1 = m_RampR[255], g1 = m_RampG[255], b1 = m_RampB[255];
+ for (i = 0; i < m_Width; i ++) {
+ if (src_buf[i / 8] & (1 << (7 - i % 8))) {
+ *dest_buf++ = b1;
+ *dest_buf++ = g1;
+ *dest_buf++ = r1;
+ } else {
+ *dest_buf++ = b0;
+ *dest_buf++ = g0;
+ *dest_buf++ = r0;
+ }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ dest_buf++;
+#endif
+ }
+ break;
+ }
+ case FXDIB_1bppMask: {
+ int m0 = m_RampR[0], m1 = m_RampR[255];
+ for (i = 0; i < m_Width; i ++) {
+ if (src_buf[i / 8] & (1 << (7 - i % 8))) {
+ *dest_buf++ = m1;
+ } else {
+ *dest_buf++ = m0;
+ }
+ }
+ break;
+ }
+ case FXDIB_8bppRgb: {
+ FX_ARGB* pPal = m_pSrc->GetPalette();
+ for (i = 0; i < m_Width; i ++) {
+ if (pPal) {
+ FX_ARGB src_argb = pPal[*src_buf];
+ *dest_buf++ = m_RampB[FXARGB_R(src_argb)];
+ *dest_buf++ = m_RampG[FXARGB_G(src_argb)];
+ *dest_buf++ = m_RampR[FXARGB_B(src_argb)];
+ } else {
+ FX_DWORD src_byte = *src_buf;
+ *dest_buf++ = m_RampB[src_byte];
+ *dest_buf++ = m_RampG[src_byte];
+ *dest_buf++ = m_RampR[src_byte];
+ }
+ src_buf ++;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ dest_buf++;
+#endif
+ }
+ break;
+ }
+ case FXDIB_8bppMask:
+ for (i = 0; i < m_Width; i ++) {
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ }
+ break;
+ case FXDIB_Rgb:
+ for (i = 0; i < m_Width; i ++) {
+ *dest_buf++ = m_RampB[*(src_buf++)];
+ *dest_buf++ = m_RampG[*(src_buf++)];
+ *dest_buf++ = m_RampR[*(src_buf++)];
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ dest_buf++;
+#endif
+ }
+ break;
+ case FXDIB_Rgb32:
+ bSkip = TRUE;
+ case FXDIB_Argb:
+ for (i = 0; i < m_Width; i ++) {
+ *dest_buf++ = m_RampB[*(src_buf++)];
+ *dest_buf++ = m_RampG[*(src_buf++)];
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ if (!bSkip) {
+ *dest_buf++ = *src_buf;
+ }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ else {
+ dest_buf++;
+ }
+#endif
+ src_buf ++;
+ }
+ break;
+ default:
+ break;
+ }
+}
+void CPDF_DIBTransferFunc::TranslateDownSamples(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf, int pixels, int Bpp) const
+{
+ if (Bpp == 8) {
+ for (int i = 0; i < pixels; i ++) {
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ }
+ } else if (Bpp == 24) {
+ for (int i = 0; i < pixels; i ++) {
+ *dest_buf++ = m_RampB[*(src_buf++)];
+ *dest_buf++ = m_RampG[*(src_buf++)];
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ }
+ } else {
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ if (!m_pSrc->HasAlpha()) {
+ for (int i = 0; i < pixels; i ++) {
+ *dest_buf++ = m_RampB[*(src_buf++)];
+ *dest_buf++ = m_RampG[*(src_buf++)];
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ dest_buf++;
+ src_buf++;
+ }
+ } else
+#endif
+ for (int i = 0; i < pixels; i ++) {
+ *dest_buf++ = m_RampB[*(src_buf++)];
+ *dest_buf++ = m_RampG[*(src_buf++)];
+ *dest_buf++ = m_RampR[*(src_buf++)];
+ *dest_buf++ = *(src_buf++);
+ }
+ }
+}
+static FX_BOOL _IsSupported(CPDF_ColorSpace* pCS)
+{
+ if (pCS->GetFamily() == PDFCS_DEVICERGB || pCS->GetFamily() == PDFCS_DEVICEGRAY ||
+ pCS->GetFamily() == PDFCS_DEVICECMYK || pCS->GetFamily() == PDFCS_CALGRAY ||
+ pCS->GetFamily() == PDFCS_CALRGB) {
+ return TRUE;
+ }
+ if (pCS->GetFamily() == PDFCS_INDEXED && _IsSupported(pCS->GetBaseCS())) {
+ return TRUE;
+ }
+ return FALSE;
+}
+CPDF_ImageRenderer::CPDF_ImageRenderer()
+{
+ m_pRenderStatus = NULL;
+ m_pImageObject = NULL;
+ m_Result = TRUE;
+ m_Status = 0;
+ m_pQuickStretcher = NULL;
+ m_pTransformer = NULL;
+ m_DeviceHandle = NULL;
+ m_LoadHandle = NULL;
+ m_pClone = NULL;
+ m_bStdCS = FALSE;
+ m_bPatternColor = FALSE;
+ m_BlendType = FXDIB_BLEND_NORMAL;
+ m_pPattern = NULL;
+ m_pObj2Device = NULL;
+}
+CPDF_ImageRenderer::~CPDF_ImageRenderer()
+{
+ if (m_pQuickStretcher) {
+ delete m_pQuickStretcher;
+ }
+ if (m_pTransformer) {
+ delete m_pTransformer;
+ }
+ if (m_DeviceHandle) {
+ m_pRenderStatus->m_pDevice->CancelDIBits(m_DeviceHandle);
+ }
+ if (m_LoadHandle) {
+ delete (CPDF_ProgressiveImageLoaderHandle*)m_LoadHandle;
+ }
+ if (m_pClone) {
+ delete m_pClone;
+ }
+}
+FX_BOOL CPDF_ImageRenderer::StartLoadDIBSource()
+{
+ CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+ FX_RECT image_rect = image_rect_f.GetOutterRect();
+ int dest_width = image_rect.Width();
+ int dest_height = image_rect.Height();
+ if (m_ImageMatrix.a < 0) {
+ dest_width = -dest_width;
+ }
+ if (m_ImageMatrix.d > 0) {
+ dest_height = -dest_height;
+ }
+ if (m_Loader.StartLoadImage(m_pImageObject, m_pRenderStatus->m_pContext->m_pPageCache, m_LoadHandle, m_bStdCS,
+ m_pRenderStatus->m_GroupFamily, m_pRenderStatus->m_bLoadMask, m_pRenderStatus, dest_width, dest_height)) {
+ if (m_LoadHandle != NULL) {
+ m_Status = 4;
+ return TRUE;
+ }
+ return FALSE;
+ }
+ return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource()
+{
+ if (m_Loader.m_pBitmap == NULL) {
+ return FALSE;
+ }
+ m_BitmapAlpha = 255;
+ const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
+ if (pGeneralState) {
+ m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
+ }
+ m_pDIBSource = m_Loader.m_pBitmap;
+ if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA && m_Loader.m_pMask == NULL) {
+ return StartBitmapAlpha();
+ }
+#ifndef _FPDFAPI_MINI_
+ if (pGeneralState && pGeneralState->m_pTR) {
+ if (!pGeneralState->m_pTransferFunc) {
+ ((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc = m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
+ }
+ if (pGeneralState->m_pTransferFunc && !pGeneralState->m_pTransferFunc->m_bIdentity) {
+ m_pDIBSource = m_Loader.m_pBitmap = pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap, !m_Loader.m_bCached);
+ if (m_Loader.m_bCached && m_Loader.m_pMask) {
+ m_Loader.m_pMask = m_Loader.m_pMask->Clone();
+ }
+ m_Loader.m_bCached = FALSE;
+ }
+ }
+#endif
+ m_FillArgb = 0;
+ m_bPatternColor = FALSE;
+ m_pPattern = NULL;
+ if (m_pDIBSource->IsAlphaMask()) {
+ CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
+ if (pColor && pColor->IsPattern()) {
+ m_pPattern = pColor->GetPattern();
+ if (m_pPattern != NULL) {
+ m_bPatternColor = TRUE;
+ }
+ }
+ m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
+ } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
+ m_pClone = m_pDIBSource->Clone();
+ m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor, m_pRenderStatus->m_Options.m_ForeColor);
+ m_pDIBSource = m_pClone;
+ }
+ m_Flags = 0;
+#if !defined(_FPDFAPI_MINI_)
+ if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
+ m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+ } else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
+ m_Flags |= RENDER_FORCE_HALFTONE;
+ }
+#else
+ if (!(m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE)) {
+ if (m_pRenderStatus->m_HalftoneLimit) {
+ CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+ FX_RECT image_rect = image_rect_f.GetOutterRect();
+ FX_RECT image_clip = image_rect;
+ image_rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
+ if (image_rect.Width() && image_rect.Height()) {
+ if ((image_clip.Width() * m_pDIBSource->GetWidth() / image_rect.Width()) *
+ (image_clip.Height() * m_pDIBSource->GetHeight() / image_rect.Height()) >
+ m_pRenderStatus->m_HalftoneLimit) {
+ m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+ }
+ }
+ } else {
+ m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+ }
+ }
+#endif
+#ifndef _FPDFAPI_MINI_
+ if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
+ CPDF_Object* pFilters = m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(FX_BSTRC("Filter"));
+ if (pFilters) {
+ if (pFilters->GetType() == PDFOBJ_NAME) {
+ CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
+ if (bsDecodeType == FX_BSTRC("DCTDecode") || bsDecodeType == FX_BSTRC("JPXDecode")) {
+ m_Flags |= FXRENDER_IMAGE_LOSSY;
+ }
+ } else if (pFilters->GetType() == PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = (CPDF_Array*)pFilters;
+ for (FX_DWORD i = 0; i < pArray->GetCount(); i ++) {
+ CFX_ByteStringC bsDecodeType = pArray->GetConstString(i);
+ if (bsDecodeType == FX_BSTRC("DCTDecode") || bsDecodeType == FX_BSTRC("JPXDecode")) {
+ m_Flags |= FXRENDER_IMAGE_LOSSY;
+ break;
+ }
+ }
+ }
+ }
+ }
+ if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
+ m_Flags |= FXDIB_NOSMOOTH;
+ } else if (m_pImageObject->m_pImage->IsInterpol()) {
+ m_Flags |= FXDIB_INTERPOL;
+ }
+#endif
+ if (m_Loader.m_pMask) {
+ return DrawMaskedImage();
+ }
+ if (m_bPatternColor) {
+ return DrawPatternImage(m_pObj2Device);
+ }
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
+ pGeneralState->m_OPMode == 0 && pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL && pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
+ CPDF_Document* pDocument = NULL;
+ CPDF_Page* pPage = NULL;
+ if (m_pRenderStatus->m_pContext->m_pPageCache) {
+ pPage = m_pRenderStatus->m_pContext->m_pPageCache->GetPage();
+ pDocument = pPage->m_pDocument;
+ } else {
+ pDocument = m_pImageObject->m_pImage->GetDocument();
+ }
+ CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
+ CPDF_Object* pCSObj = m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(FX_BSTRC("ColorSpace"));
+ CPDF_ColorSpace* pColorSpace = pDocument->LoadColorSpace(pCSObj, pPageResources);
+ if (pColorSpace) {
+ int format = pColorSpace->GetFamily();
+ if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION || format == PDFCS_DEVICEN) {
+ m_BlendType = FXDIB_BLEND_DARKEN;
+ }
+ pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
+ }
+ }
+#endif
+ return StartDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStdCS, int blendType)
+{
+ m_pRenderStatus = pStatus;
+ m_bStdCS = bStdCS;
+ m_pImageObject = (CPDF_ImageObject*)pObj;
+ m_BlendType = blendType;
+ m_pObj2Device = pObj2Device;
+#ifndef _FPDFAPI_MINI_
+ CPDF_Dictionary* pOC = m_pImageObject->m_pImage->GetOC();
+ if (pOC && m_pRenderStatus->m_Options.m_pOCContext && !m_pRenderStatus->m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
+ return FALSE;
+ }
+#endif
+ m_ImageMatrix = m_pImageObject->m_Matrix;
+ m_ImageMatrix.Concat(*pObj2Device);
+ if (StartLoadDIBSource()) {
+ return TRUE;
+ }
+ return StartRenderDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, const CFX_DIBSource* pDIBSource, FX_ARGB bitmap_argb,
+ int bitmap_alpha, const CFX_AffineMatrix* pImage2Device, FX_DWORD flags, FX_BOOL bStdCS, int blendType)
+{
+ m_pRenderStatus = pStatus;
+ m_pDIBSource = pDIBSource;
+ m_FillArgb = bitmap_argb;
+ m_BitmapAlpha = bitmap_alpha;
+ m_ImageMatrix = *pImage2Device;
+ m_Flags = flags;
+ m_bStdCS = bStdCS;
+ m_BlendType = blendType;
+ return StartDIBSource();
+}
+FX_BOOL CPDF_ImageRenderer::DrawPatternImage(const CFX_Matrix* pObj2Device)
+{
+ if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+ m_Result = FALSE;
+ return FALSE;
+ }
+ FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
+ rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
+ if (rect.IsEmpty()) {
+ return FALSE;
+ }
+ CFX_AffineMatrix new_matrix = m_ImageMatrix;
+ new_matrix.TranslateI(-rect.left, -rect.top);
+ int width = rect.Width();
+ int height = rect.Height();
+ CFX_FxgeDevice bitmap_device1;
+ if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Rgb32)) {
+ return TRUE;
+ }
+ bitmap_device1.GetBitmap()->Clear(0xffffff);
+ {
+ CPDF_RenderStatus bitmap_render;
+ bitmap_render.Initialize(m_pRenderStatus->m_Level + 1, m_pRenderStatus->m_pContext, &bitmap_device1, NULL, NULL,
+ NULL, NULL, &m_pRenderStatus->m_Options, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+ CFX_Matrix patternDevice = *pObj2Device;
+ patternDevice.Translate((FX_FLOAT) - rect.left, (FX_FLOAT) - rect.top);
+ if(m_pPattern->m_PatternType == PATTERN_TILING) {
+ bitmap_render.DrawTilingPattern((CPDF_TilingPattern*)m_pPattern, m_pImageObject, &patternDevice, FALSE);
+ } else {
+ bitmap_render.DrawShadingPattern((CPDF_ShadingPattern*)m_pPattern, m_pImageObject, &patternDevice, FALSE);
+ }
+ }
+ {
+ CFX_FxgeDevice bitmap_device2;
+ if (!bitmap_device2.Create(rect.Width(), rect.Height(), FXDIB_8bppRgb)) {
+ return TRUE;
+ }
+ bitmap_device2.GetBitmap()->Clear(0);
+ CPDF_RenderStatus bitmap_render;
+ bitmap_render.Initialize(m_pRenderStatus->m_Level + 1, m_pRenderStatus->m_pContext, &bitmap_device2, NULL, NULL,
+ NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+ CPDF_ImageRenderer image_render;
+ if (image_render.Start(&bitmap_render, m_pDIBSource, 0xffffffff, 255, &new_matrix, m_Flags, TRUE)) {
+ image_render.Continue(NULL);
+ }
+ if (m_Loader.m_MatteColor != 0xffffffff) {
+ int matte_r = FXARGB_R(m_Loader.m_MatteColor);
+ int matte_g = FXARGB_G(m_Loader.m_MatteColor);
+ int matte_b = FXARGB_B(m_Loader.m_MatteColor);
+ for (int row = 0; row < height; row ++) {
+ FX_LPBYTE dest_scan = (FX_LPBYTE)bitmap_device1.GetBitmap()->GetScanline(row);
+ FX_LPCBYTE mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
+ for (int col = 0; col < width; col ++) {
+ int alpha = *mask_scan ++;
+ if (alpha) {
+ int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ dest_scan ++;
+ } else {
+ dest_scan += 4;
+ }
+ }
+ }
+ }
+ bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
+ bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
+ bitmap_device1.GetBitmap()->MultiplyAlpha(255);
+ }
+ m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left, rect.top, m_BlendType);
+ return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::DrawMaskedImage()
+{
+ if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+ m_Result = FALSE;
+ return FALSE;
+ }
+ FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
+ rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
+ if (rect.IsEmpty()) {
+ return FALSE;
+ }
+ CFX_AffineMatrix new_matrix = m_ImageMatrix;
+ new_matrix.TranslateI(-rect.left, -rect.top);
+ int width = rect.Width();
+ int height = rect.Height();
+ CFX_FxgeDevice bitmap_device1;
+ if (!bitmap_device1.Create(width, height, FXDIB_Rgb32)) {
+ return TRUE;
+ }
+ bitmap_device1.GetBitmap()->Clear(0xffffff);
+ {
+ CPDF_RenderStatus bitmap_render;
+ bitmap_render.Initialize(m_pRenderStatus->m_Level + 1, m_pRenderStatus->m_pContext, &bitmap_device1, NULL, NULL,
+ NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+ CPDF_ImageRenderer image_render;
+ if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix, m_Flags, TRUE)) {
+ image_render.Continue(NULL);
+ }
+ }
+ {
+ CFX_FxgeDevice bitmap_device2;
+ if (!bitmap_device2.Create(width, height, FXDIB_8bppRgb)) {
+ return TRUE;
+ }
+ bitmap_device2.GetBitmap()->Clear(0);
+ CPDF_RenderStatus bitmap_render;
+ bitmap_render.Initialize(m_pRenderStatus->m_Level + 1, m_pRenderStatus->m_pContext, &bitmap_device2, NULL, NULL,
+ NULL, NULL, NULL, 0, m_pRenderStatus->m_bDropObjects, NULL, TRUE);
+ CPDF_ImageRenderer image_render;
+ if (image_render.Start(&bitmap_render, m_Loader.m_pMask, 0xffffffff, 255, &new_matrix, m_Flags, TRUE)) {
+ image_render.Continue(NULL);
+ }
+ if (m_Loader.m_MatteColor != 0xffffffff) {
+ int matte_r = FXARGB_R(m_Loader.m_MatteColor);
+ int matte_g = FXARGB_G(m_Loader.m_MatteColor);
+ int matte_b = FXARGB_B(m_Loader.m_MatteColor);
+ for (int row = 0; row < height; row ++) {
+ FX_LPBYTE dest_scan = (FX_LPBYTE)bitmap_device1.GetBitmap()->GetScanline(row);
+ FX_LPCBYTE mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
+ for (int col = 0; col < width; col ++) {
+ int alpha = *mask_scan ++;
+ if (alpha) {
+ int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
+ if (orig < 0) {
+ orig = 0;
+ } else if (orig > 255) {
+ orig = 255;
+ }
+ *dest_scan++ = orig;
+ dest_scan ++;
+ } else {
+ dest_scan += 4;
+ }
+ }
+ }
+ }
+ bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
+ bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
+ if (m_BitmapAlpha < 255) {
+ bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
+ }
+ }
+ m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left, rect.top, m_BlendType);
+ return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartDIBSource()
+{
+#if !defined(_FPDFAPI_MINI_)
+ if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) {
+ int image_size = m_pDIBSource->GetBPP() / 8 * m_pDIBSource->GetWidth() * m_pDIBSource->GetHeight();
+ if (image_size > FPDF_HUGE_IMAGE_SIZE && !(m_Flags & RENDER_FORCE_HALFTONE)) {
+ m_Flags |= RENDER_FORCE_DOWNSAMPLE;
+ }
+ }
+#endif
+ if (m_pRenderStatus->m_pDevice->StartDIBits(m_pDIBSource, m_BitmapAlpha, m_FillArgb,
+ &m_ImageMatrix, m_Flags, m_DeviceHandle, 0, NULL, m_BlendType)) {
+ if (m_DeviceHandle != NULL) {
+ m_Status = 3;
+ return TRUE;
+ }
+ return FALSE;
+ }
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+ FX_RECT image_rect = image_rect_f.GetOutterRect();
+ int dest_width = image_rect.Width();
+ int dest_height = image_rect.Height();
+ if ((FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || m_ImageMatrix.a == 0) ||
+ (FXSYS_fabs(m_ImageMatrix.c) >= 0.5f || m_ImageMatrix.d == 0) ) {
+ if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+ m_Result = FALSE;
+ return FALSE;
+ }
+ FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
+ clip_box.Intersect(image_rect);
+ m_Status = 2;
+ m_pTransformer = FX_NEW CFX_ImageTransformer;
+ m_pTransformer->Start(m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box);
+ return TRUE;
+ }
+ if (m_ImageMatrix.a < 0) {
+ dest_width = -dest_width;
+ }
+ if (m_ImageMatrix.d > 0) {
+ dest_height = -dest_height;
+ }
+ int dest_left, dest_top;
+ dest_left = dest_width > 0 ? image_rect.left : image_rect.right;
+ dest_top = dest_height > 0 ? image_rect.top : image_rect.bottom;
+ if (m_pDIBSource->IsOpaqueImage() && m_BitmapAlpha == 255) {
+ if (m_pRenderStatus->m_pDevice->StretchDIBits(m_pDIBSource, dest_left, dest_top,
+ dest_width, dest_height, m_Flags, NULL, m_BlendType)) {
+ return FALSE;
+ }
+ }
+ if (m_pDIBSource->IsAlphaMask()) {
+ if (m_BitmapAlpha != 255) {
+ m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
+ }
+ if (m_pRenderStatus->m_pDevice->StretchBitMask(m_pDIBSource, dest_left, dest_top, dest_width, dest_height, m_FillArgb, m_Flags)) {
+ return FALSE;
+ }
+ }
+ if (m_pRenderStatus->m_bPrint && !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
+ m_Result = FALSE;
+ return TRUE;
+ }
+ FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
+ FX_RECT dest_rect = clip_box;
+ dest_rect.Intersect(image_rect);
+ FX_RECT dest_clip(dest_rect.left - image_rect.left, dest_rect.top - image_rect.top,
+ dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top);
+ CFX_DIBitmap* pStretched = m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip);
+ if (pStretched) {
+ m_pRenderStatus->CompositeDIBitmap(pStretched, dest_rect.left, dest_rect.top, m_FillArgb,
+ m_BitmapAlpha, m_BlendType, FALSE);
+ delete pStretched;
+ pStretched = NULL;
+ }
+#endif
+ return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::StartBitmapAlpha()
+{
+#ifndef _FPDFAPI_MINI_
+ if (m_pDIBSource->IsOpaqueImage()) {
+ CFX_PathData path;
+ path.AppendRect(0, 0, 1, 1);
+ path.Transform(&m_ImageMatrix);
+ FX_DWORD fill_color = ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha);
+ m_pRenderStatus->m_pDevice->DrawPath(&path, NULL, NULL, fill_color, 0, FXFILL_WINDING);
+ } else {
+ const CFX_DIBSource* pAlphaMask = m_pDIBSource->IsAlphaMask() ? m_pDIBSource : m_pDIBSource->GetAlphaMask();
+ if (FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || FXSYS_fabs(m_ImageMatrix.c) >= 0.5f) {
+ int left, top;
+ CFX_DIBitmap* pTransformed = pAlphaMask->TransformTo(&m_ImageMatrix, left, top);
+ if (pTransformed == NULL) {
+ return TRUE;
+ }
+ m_pRenderStatus->m_pDevice->SetBitMask(pTransformed, left, top, ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
+ delete pTransformed;
+ } else {
+ CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
+ FX_RECT image_rect = image_rect_f.GetOutterRect();
+ int dest_width = m_ImageMatrix.a > 0 ? image_rect.Width() : -image_rect.Width();
+ int dest_height = m_ImageMatrix.d > 0 ? -image_rect.Height() : image_rect.Height();
+ int left = dest_width > 0 ? image_rect.left : image_rect.right;
+ int top = dest_height > 0 ? image_rect.top : image_rect.bottom;
+ m_pRenderStatus->m_pDevice->StretchBitMask(pAlphaMask, left, top, dest_width, dest_height,
+ ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
+ }
+ if (m_pDIBSource != pAlphaMask) {
+ delete pAlphaMask;
+ }
+ }
+#endif
+ return FALSE;
+}
+FX_BOOL CPDF_ImageRenderer::Continue(IFX_Pause* pPause)
+{
+ if (m_Status == 1) {
+#ifndef _FPDFAPI_MINI_
+ if (m_pQuickStretcher->Continue(pPause)) {
+ return TRUE;
+ }
+ if (m_pQuickStretcher->m_pBitmap->IsAlphaMask())
+ m_pRenderStatus->m_pDevice->SetBitMask(m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
+ m_pQuickStretcher->m_ResultTop, m_FillArgb);
+ else
+ m_pRenderStatus->m_pDevice->SetDIBits(m_pQuickStretcher->m_pBitmap, m_pQuickStretcher->m_ResultLeft,
+ m_pQuickStretcher->m_ResultTop, m_BlendType);
+ return FALSE;
+#endif
+ } else if (m_Status == 2) {
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ if (m_pTransformer->Continue(pPause)) {
+ return TRUE;
+ }
+ CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach();
+ if (pBitmap == NULL) {
+ return FALSE;
+ }
+ if (pBitmap->IsAlphaMask()) {
+ if (m_BitmapAlpha != 255) {
+ m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
+ }
+ m_Result = m_pRenderStatus->m_pDevice->SetBitMask(pBitmap,
+ m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop, m_FillArgb);
+ } else {
+ if (m_BitmapAlpha != 255) {
+ pBitmap->MultiplyAlpha(m_BitmapAlpha);
+ }
+ m_Result = m_pRenderStatus->m_pDevice->SetDIBits(pBitmap,
+ m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop, m_BlendType);
+ }
+ delete pBitmap;
+ return FALSE;
+#endif
+ } else if (m_Status == 3) {
+ return m_pRenderStatus->m_pDevice->ContinueDIBits(m_DeviceHandle, pPause);
+ } else if (m_Status == 4) {
+ if (m_Loader.Continue(m_LoadHandle, pPause)) {
+ return TRUE;
+ }
+ if (StartRenderDIBSource()) {
+ return Continue(pPause);
+ }
+ return FALSE;
+ }
+ return FALSE;
+}
+CPDF_QuickStretcher::CPDF_QuickStretcher()
+{
+ m_pBitmap = NULL;
+ m_pDecoder = NULL;
+ m_pCS = NULL;
+}
+CPDF_QuickStretcher::~CPDF_QuickStretcher()
+{
+ if (m_pBitmap) {
+ delete m_pBitmap;
+ }
+ if (m_pCS) {
+ m_pCS->ReleaseCS();
+ }
+ if (m_pDecoder) {
+ delete m_pDecoder;
+ }
+}
+ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc, const CPDF_Dictionary* pParams);
+FX_BOOL CPDF_QuickStretcher::Start(CPDF_ImageObject* pImageObj, CFX_AffineMatrix* pImage2Device, const FX_RECT* pClipBox)
+{
+ if (FXSYS_fabs(pImage2Device->a) < FXSYS_fabs(pImage2Device->b) * 10 && FXSYS_fabs(pImage2Device->d) < FXSYS_fabs(pImage2Device->c) * 10) {
+ return FALSE;
+ }
+ CFX_FloatRect image_rect_f = pImage2Device->GetUnitRect();
+ FX_RECT image_rect = image_rect_f.GetOutterRect();
+ m_DestWidth = image_rect.Width();
+ m_DestHeight = image_rect.Height();
+ m_bFlipX = pImage2Device->a < 0;
+ m_bFlipY = pImage2Device->d > 0;
+ FX_RECT result_rect = *pClipBox;
+ result_rect.Intersect(image_rect);
+ if (result_rect.IsEmpty()) {
+ return FALSE;
+ }
+ m_ResultWidth = result_rect.Width();
+ m_ResultHeight = result_rect.Height();
+ m_ResultLeft = result_rect.left;
+ m_ResultTop = result_rect.top;
+ m_ClipLeft = result_rect.left - image_rect.left;
+ m_ClipTop = result_rect.top - image_rect.top;
+ CPDF_Dictionary* pDict = pImageObj->m_pImage->GetDict();
+ if (pDict->GetInteger(FX_BSTRC("BitsPerComponent")) != 8) {
+ return FALSE;
+ }
+ if (pDict->KeyExist(FX_BSTRC("SMask")) || pDict->KeyExist(FX_BSTRC("Mask"))) {
+ return FALSE;
+ }
+ m_SrcWidth = pDict->GetInteger(FX_BSTRC("Width"));
+ m_SrcHeight = pDict->GetInteger(FX_BSTRC("Height"));
+ m_pCS = NULL;
+ m_Bpp = 3;
+ CPDF_Object* pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
+ if (pCSObj == NULL) {
+ return FALSE;
+ }
+ m_pCS = CPDF_ColorSpace::Load(pImageObj->m_pImage->GetDocument(), pCSObj);
+ if (m_pCS == NULL) {
+ return FALSE;
+ }
+ if (!_IsSupported(m_pCS)) {
+ return FALSE;
+ }
+ m_Bpp = m_pCS->CountComponents();
+ if (m_pCS->sRGB()) {
+ m_pCS->ReleaseCS();
+ m_pCS = NULL;
+ }
+ CPDF_Stream* pStream = pImageObj->m_pImage->GetStream();
+ m_StreamAcc.LoadAllData(pStream, FALSE, m_SrcWidth * m_SrcHeight * m_Bpp, TRUE);
+ m_pDecoder = NULL;
+ if (!m_StreamAcc.GetImageDecoder().IsEmpty()) {
+ if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("DCTDecode")) {
+ const CPDF_Dictionary* pParam = m_StreamAcc.GetImageParam();
+ m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
+ m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight, m_Bpp,
+ pParam ? pParam->GetInteger(FX_BSTRC("ColorTransform"), 1) : 1);
+ } else if (m_StreamAcc.GetImageDecoder() == FX_BSTRC("FlateDecode")) {
+ m_pDecoder = FPDFAPI_CreateFlateDecoder(
+ m_StreamAcc.GetData(), m_StreamAcc.GetSize(), m_SrcWidth, m_SrcHeight, m_Bpp, 8,
+ m_StreamAcc.GetImageParam());
+ } else {
+ return FALSE;
+ }
+ m_pDecoder->DownScale(m_DestWidth, m_DestHeight);
+ }
+ m_pBitmap = FX_NEW CFX_DIBitmap;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb32);
+#else
+ m_pBitmap->Create(m_ResultWidth, m_ResultHeight, FXDIB_Rgb);
+#endif
+ m_LineIndex = 0;
+ return TRUE;
+}
+FX_BOOL CPDF_QuickStretcher::Continue(IFX_Pause* pPause)
+{
+ FX_LPBYTE result_buf = m_pBitmap->GetBuffer();
+ int src_width = m_pDecoder ? m_pDecoder->GetWidth() : m_SrcWidth;
+ int src_height = m_pDecoder ? m_pDecoder->GetHeight() : m_SrcHeight;
+ int src_pitch = src_width * m_Bpp;
+ while (m_LineIndex < m_ResultHeight) {
+ int dest_y, src_y;
+ if (m_bFlipY) {
+ dest_y = m_ResultHeight - m_LineIndex - 1;
+ src_y = (m_DestHeight - (dest_y + m_ClipTop) - 1) * src_height / m_DestHeight;
+ } else {
+ dest_y = m_LineIndex;
+ src_y = (dest_y + m_ClipTop) * src_height / m_DestHeight;
+ }
+ FX_LPCBYTE src_scan;
+ if (m_pDecoder) {
+ src_scan = m_pDecoder->GetScanline(src_y);
+ if (src_scan == NULL) {
+ break;
+ }
+ } else {
+ src_scan = m_StreamAcc.GetData();
+ if (src_scan == NULL) {
+ break;
+ }
+ src_scan += src_y * src_pitch;
+ }
+ FX_LPBYTE result_scan = result_buf + dest_y * m_pBitmap->GetPitch();
+ for (int x = 0; x < m_ResultWidth; x ++) {
+ int dest_x = m_ClipLeft + x;
+ int src_x = (m_bFlipX ? (m_DestWidth - dest_x - 1) : dest_x) * src_width / m_DestWidth;
+ FX_LPCBYTE src_pixel = src_scan + src_x * m_Bpp;
+ if (m_pCS == NULL) {
+ *result_scan = src_pixel[2];
+ result_scan ++;
+ *result_scan = src_pixel[1];
+ result_scan ++;
+ *result_scan = src_pixel[0];
+ result_scan ++;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ result_scan ++;
+#endif
+ } else {
+ m_pCS->TranslateImageLine(result_scan, src_pixel, 1, 0, 0);
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ result_scan += 4;
+#else
+ result_scan += 3;
+#endif
+ }
+ }
+ m_LineIndex ++;
+ if (pPause && pPause->NeedToPauseNow()) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
+ FX_RECT* pClipRect, const CFX_AffineMatrix* pMatrix)
+{
+ if (pSMaskDict == NULL) {
+ return NULL;
+ }
+ CFX_DIBitmap* pMask = NULL;
+ int width = pClipRect->right - pClipRect->left;
+ int height = pClipRect->bottom - pClipRect->top;
+ FX_BOOL bLuminosity = FALSE;
+ bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
+ CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
+ if (pGroup == NULL) {
+ return NULL;
+ }
+ CPDF_Function* pFunc = NULL;
+ CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
+ if (pFuncObj && (pFuncObj->GetType() == PDFOBJ_DICTIONARY || pFuncObj->GetType() == PDFOBJ_STREAM)) {
+ pFunc = CPDF_Function::Load(pFuncObj);
+ }
+ CFX_AffineMatrix matrix = *pMatrix;
+ matrix.TranslateI(-pClipRect->left, -pClipRect->top);
+ CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
+ form.ParseContent(NULL, NULL, NULL, NULL);
+ CFX_FxgeDevice bitmap_device;
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
+ return NULL;
+ }
+#else
+ if (!bitmap_device.Create(width, height, bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
+ return NULL;
+ }
+#endif
+ CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
+ CPDF_Object* pCSObj = NULL;
+ CPDF_ColorSpace* pCS = NULL;
+ if (bLuminosity) {
+ CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
+ FX_ARGB back_color = 0xff000000;
+ if (pBC) {
+ pCSObj = pGroup->GetDict()->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
+ pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
+ if (pCS) {
+ FX_FLOAT R, G, B;
+ FX_DWORD num_floats = 8;
+ if (pCS->CountComponents() > (FX_INT32)num_floats) {
+ num_floats = (FX_DWORD)pCS->CountComponents();
+ }
+ CFX_FixedBufGrow<FX_FLOAT, 8> float_array(num_floats);
+ FX_FLOAT* pFloats = float_array;
+ FXSYS_memset32(pFloats, 0, num_floats * sizeof(FX_FLOAT));
+ int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
+ for (int i = 0; i < count; i ++) {
+ pFloats[i] = pBC->GetNumber(i);
+ }
+ pCS->GetRGB(pFloats, R, G, B);
+ back_color = 0xff000000 | ((FX_INT32)(R * 255) << 16) | ((FX_INT32)(G * 255) << 8) | (FX_INT32)(B * 255);
+ m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
+ }
+ }
+ bitmap.Clear(back_color);
+ } else {
+ bitmap.Clear(0);
+ }
+ CPDF_Dictionary* pFormResource = NULL;
+ if (form.m_pFormDict) {
+ pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
+ }
+ CPDF_RenderOptions options;
+ options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
+ &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0, pCS ? pCS->GetFamily() : 0, bLuminosity);
+ status.RenderObjectList(&form, &matrix);
+ pMask = FX_NEW CFX_DIBitmap;
+ if (!pMask->Create(width, height, FXDIB_8bppMask)) {
+ delete pMask;
+ return NULL;
+ }
+ FX_LPBYTE dest_buf = pMask->GetBuffer();
+ int dest_pitch = pMask->GetPitch();
+ FX_LPBYTE src_buf = bitmap.GetBuffer();
+ int src_pitch = bitmap.GetPitch();
+ FX_LPBYTE pTransfer = FX_Alloc(FX_BYTE, 256);
+ if (pFunc) {
+ CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
+ for (int i = 0; i < 256; i ++) {
+ FX_FLOAT input = (FX_FLOAT)i / 255.0f;
+ int nresult;
+ pFunc->Call(&input, 1, results, nresult);
+ pTransfer[i] = FXSYS_round(results[0] * 255);
+ }
+ } else {
+ for (int i = 0; i < 256; i ++) {
+ pTransfer[i] = i;
+ }
+ }
+ if (bLuminosity) {
+ int Bpp = bitmap.GetBPP() / 8;
+ for (int row = 0; row < height; row ++) {
+ FX_LPBYTE dest_pos = dest_buf + row * dest_pitch;
+ FX_LPBYTE src_pos = src_buf + row * src_pitch;
+ for (int col = 0; col < width; col ++) {
+ *dest_pos ++ = pTransfer[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
+ src_pos += Bpp;
+ }
+ }
+ } else if (pFunc) {
+ int size = dest_pitch * height;
+ for (int i = 0; i < size; i ++) {
+ dest_buf[i] = pTransfer[src_buf[i]];
+ }
+ } else {
+ FXSYS_memcpy32(dest_buf, src_buf, dest_pitch * height);
+ }
+ if (pFunc) {
+ delete pFunc;
+ }
+ FX_Free(pTransfer);
+ return pMask;
+}
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp new file mode 100644 index 0000000000..fcb5271cc3 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp @@ -0,0 +1,1524 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fxge/fx_ge.h"
+#include "../../../include/fxcodec/fx_codec.h"
+#include "../../../include/fpdfapi/fpdf_module.h"
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#include "../fpdf_page/pageint.h"
+#include "render_int.h"
+#include <limits.h>
+static unsigned int _GetBits8(FX_LPCBYTE pData, int bitpos, int nbits)
+{
+ unsigned int byte = pData[bitpos / 8];
+ if (nbits == 8) {
+ return byte;
+ } else if (nbits == 4) {
+ return (bitpos % 8) ? (byte & 0x0f) : (byte >> 4);
+ } else if (nbits == 2) {
+ return (byte >> (6 - bitpos % 8)) & 0x03;
+ } else if (nbits == 1) {
+ return (byte >> (7 - bitpos % 8)) & 0x01;
+ } else if (nbits == 16) {
+ return byte * 256 + pData[bitpos / 8 + 1];
+ }
+ return 0;
+}
+CFX_DIBSource* CPDF_Image::LoadDIBSource(CFX_DIBSource** ppMask, FX_DWORD* pMatteColor, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask) const
+{
+ CPDF_DIBSource* pSource = FX_NEW CPDF_DIBSource;
+ if (pSource->Load(m_pDocument, m_pStream, (CPDF_DIBSource**)ppMask, pMatteColor, NULL, NULL, bStdCS, GroupFamily, bLoadMask)) {
+ return pSource;
+ }
+ delete pSource;
+ return NULL;
+}
+CFX_DIBSource* CPDF_Image::DetachBitmap()
+{
+ CFX_DIBSource* pBitmap = m_pDIBSource;
+ m_pDIBSource = NULL;
+ return pBitmap;
+}
+CFX_DIBSource* CPDF_Image::DetachMask()
+{
+ CFX_DIBSource* pBitmap = m_pMask;
+ m_pMask = NULL;
+ return pBitmap;
+}
+FX_BOOL CPDF_Image::StartLoadDIBSource(CPDF_Dictionary* pFormResource, CPDF_Dictionary* pPageResource, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
+{
+ m_pDIBSource = FX_NEW CPDF_DIBSource;
+ int ret = ((CPDF_DIBSource*)m_pDIBSource)->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResource, pPageResource, bStdCS, GroupFamily, bLoadMask);
+ if (ret == 2) {
+ return TRUE;
+ }
+ if (!ret) {
+ delete m_pDIBSource;
+ m_pDIBSource = NULL;
+ return FALSE;
+ }
+ m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask();
+ m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor;
+ return FALSE;
+}
+FX_BOOL CPDF_Image::Continue(IFX_Pause* pPause)
+{
+ int ret = ((CPDF_DIBSource*)m_pDIBSource)->ContinueLoadDIBSource(pPause);
+ if (ret == 2) {
+ return TRUE;
+ }
+ if (!ret) {
+ delete m_pDIBSource;
+ m_pDIBSource = NULL;
+ return FALSE;
+ }
+ m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask();
+ m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor;
+ return FALSE;
+}
+CPDF_DIBSource::CPDF_DIBSource()
+{
+ m_pDocument = NULL;
+ m_pStreamAcc = NULL;
+ m_pDict = NULL;
+ m_bpp = 0;
+ m_Width = m_Height = 0;
+ m_pColorSpace = NULL;
+ m_bDefaultDecode = TRUE;
+ m_bImageMask = FALSE;
+ m_pPalette = NULL;
+ m_pCompData = NULL;
+ m_bColorKey = FALSE;
+ m_pMaskedLine = m_pLineBuf = NULL;
+ m_pCachedBitmap = NULL;
+ m_pDecoder = NULL;
+ m_nComponents = 0;
+ m_bpc = 0;
+ m_bLoadMask = FALSE;
+ m_Family = 0;
+ m_pMask = NULL;
+ m_MatteColor = 0;
+ m_pJbig2Context = NULL;
+ m_pGlobalStream = NULL;
+ m_bStdCS = FALSE;
+ m_pMaskStream = NULL;
+ m_Status = 0;
+ m_bHasMask = FALSE;
+}
+CPDF_DIBSource::~CPDF_DIBSource()
+{
+ if (m_pStreamAcc) {
+ delete m_pStreamAcc;
+ }
+ if (m_pMaskedLine) {
+ FX_Free(m_pMaskedLine);
+ }
+ if (m_pLineBuf) {
+ FX_Free(m_pLineBuf);
+ }
+ if (m_pCachedBitmap) {
+ delete m_pCachedBitmap;
+ }
+ if (m_pDecoder) {
+ delete m_pDecoder;
+ }
+ if (m_pCompData) {
+ FX_Free(m_pCompData);
+ }
+ CPDF_ColorSpace* pCS = m_pColorSpace;
+ if (pCS && m_pDocument) {
+ m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
+ }
+ if (m_pJbig2Context) {
+ ICodec_Jbig2Module* pJbig2Moudle = CPDF_ModuleMgr::Get()->GetJbig2Module();
+ pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
+ m_pJbig2Context = NULL;
+ }
+ if (m_pGlobalStream) {
+ delete m_pGlobalStream;
+ }
+ m_pGlobalStream = NULL;
+}
+CFX_DIBitmap* CPDF_DIBSource::GetBitmap() const
+{
+ if (m_pCachedBitmap) {
+ return m_pCachedBitmap;
+ }
+ return Clone();
+}
+void CPDF_DIBSource::ReleaseBitmap(CFX_DIBitmap* pBitmap) const
+{
+ if (pBitmap && pBitmap != m_pCachedBitmap) {
+ delete pBitmap;
+ }
+}
+FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream, CPDF_DIBSource** ppMask,
+ FX_DWORD* pMatteColor, CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
+{
+ if (pStream == NULL) {
+ return FALSE;
+ }
+ m_pDocument = pDoc;
+ m_pDict = pStream->GetDict();
+ m_pStream = pStream;
+ m_Width = m_pDict->GetInteger(FX_BSTRC("Width"));
+ m_Height = m_pDict->GetInteger(FX_BSTRC("Height"));
+ if (m_Width <= 0 || m_Height <= 0 || m_Width > 0x01ffff || m_Height > 0x01ffff) {
+ return FALSE;
+ }
+ m_GroupFamily = GroupFamily;
+ m_bLoadMask = bLoadMask;
+ if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
+ return FALSE;
+ }
+ FX_DWORD src_pitch = m_bpc;
+ if (m_bpc != 0 && m_nComponents != 0) {
+ if (src_pitch > 0 && m_nComponents > (unsigned)INT_MAX / src_pitch) {
+ return FALSE;
+ }
+ src_pitch *= m_nComponents;
+ if (src_pitch > 0 && (FX_DWORD)m_Width > (unsigned)INT_MAX / src_pitch) {
+ return FALSE;
+ }
+ src_pitch *= m_Width;
+ if (src_pitch + 7 < src_pitch) {
+ return FALSE;
+ }
+ src_pitch += 7;
+ src_pitch /= 8;
+ if (src_pitch > 0 && (FX_DWORD)m_Height > (unsigned)INT_MAX / src_pitch) {
+ return FALSE;
+ }
+ }
+ m_pStreamAcc = FX_NEW CPDF_StreamAcc;
+ m_pStreamAcc->LoadAllData(pStream, FALSE, m_Height * src_pitch, TRUE);
+ if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
+ return FALSE;
+ }
+ const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
+ if (!decoder.IsEmpty() && decoder == FX_BSTRC("CCITTFaxDecode")) {
+ m_bpc = 1;
+ }
+ if (!CreateDecoder()) {
+ return FALSE;
+ }
+ if (m_bImageMask) {
+ m_bpp = 1;
+ m_bpc = 1;
+ m_nComponents = 1;
+ m_AlphaFlag = 1;
+ } else if (m_bpc * m_nComponents == 1) {
+ m_bpp = 1;
+ } else if (m_bpc * m_nComponents <= 8) {
+ m_bpp = 8;
+ } else {
+ m_bpp = 24;
+ }
+ if (!m_bpc || !m_nComponents) {
+ return FALSE;
+ }
+ m_Pitch = m_Width;
+ if ((FX_DWORD)m_bpp > (unsigned)INT_MAX / m_Pitch) {
+ return FALSE;
+ }
+ m_Pitch *= m_bpp;
+ if (m_Pitch + 31 < m_Pitch) {
+ return FALSE;
+ }
+ m_Pitch += 31;
+ m_Pitch = m_Pitch / 32 * 4;
+ m_pLineBuf = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pColorSpace && bStdCS) {
+ m_pColorSpace->EnableStdConversion(TRUE);
+ }
+ LoadPalette();
+ if (m_bColorKey) {
+ m_bpp = 32;
+ m_AlphaFlag = 2;
+ m_Pitch = m_Width;
+ if ((FX_DWORD)m_bpp > (unsigned)INT_MAX / m_Pitch) {
+ return FALSE;
+ }
+ m_Pitch *= m_bpp;
+ if (m_Pitch + 31 < m_Pitch) {
+ return FALSE;
+ }
+ m_Pitch += 31;
+ m_Pitch = m_Pitch / 32 * 4;
+ m_pMaskedLine = FX_Alloc(FX_BYTE, m_Pitch);
+ }
+ if (ppMask) {
+ *ppMask = LoadMask(*pMatteColor);
+ }
+ if (m_pColorSpace && bStdCS) {
+ m_pColorSpace->EnableStdConversion(FALSE);
+ }
+ return TRUE;
+}
+int CPDF_DIBSource::ContinueToLoadMask()
+{
+ if (m_bImageMask) {
+ m_bpp = 1;
+ m_bpc = 1;
+ m_nComponents = 1;
+ m_AlphaFlag = 1;
+ } else if (m_bpc * m_nComponents == 1) {
+ m_bpp = 1;
+ } else if (m_bpc * m_nComponents <= 8) {
+ m_bpp = 8;
+ } else {
+ m_bpp = 24;
+ }
+ if (!m_bpc || !m_nComponents) {
+ return 0;
+ }
+ m_Pitch = m_Width;
+ if ((FX_DWORD)m_bpp > (unsigned)INT_MAX / m_Pitch) {
+ return 0;
+ }
+ m_Pitch *= m_bpp;
+ if (m_Pitch + 31 < m_Pitch) {
+ return 0;
+ }
+ m_Pitch += 31;
+ m_Pitch = m_Pitch / 32 * 4;
+ m_pLineBuf = FX_Alloc(FX_BYTE, m_Pitch);
+ if (m_pColorSpace && m_bStdCS) {
+ m_pColorSpace->EnableStdConversion(TRUE);
+ }
+ LoadPalette();
+ if (m_bColorKey) {
+ m_bpp = 32;
+ m_AlphaFlag = 2;
+ m_Pitch = m_Width;
+ if ((FX_DWORD)m_bpp > (unsigned)INT_MAX / m_Pitch) {
+ return 0;
+ }
+ m_Pitch *= m_bpp;
+ if (m_Pitch + 31 < m_Pitch) {
+ return 0;
+ }
+ m_Pitch += 31;
+ m_Pitch = m_Pitch / 32 * 4;
+ m_pMaskedLine = FX_Alloc(FX_BYTE, m_Pitch);
+ }
+ return 1;
+}
+int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, const CPDF_Stream* pStream, FX_BOOL bHasMask,
+ CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
+{
+ if (pStream == NULL) {
+ return 0;
+ }
+ m_pDocument = pDoc;
+ m_pDict = pStream->GetDict();
+ m_pStream = pStream;
+ m_bStdCS = bStdCS;
+ m_bHasMask = bHasMask;
+ m_Width = m_pDict->GetInteger(FX_BSTRC("Width"));
+ m_Height = m_pDict->GetInteger(FX_BSTRC("Height"));
+ if (m_Width <= 0 || m_Height <= 0 || m_Width > 0x01ffff || m_Height > 0x01ffff) {
+ return 0;
+ }
+ m_GroupFamily = GroupFamily;
+ m_bLoadMask = bLoadMask;
+ if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
+ return 0;
+ }
+ FX_DWORD src_pitch = m_bpc;
+ if (m_bpc != 0 && m_nComponents != 0) {
+ if (src_pitch > 0 && m_nComponents > (unsigned)INT_MAX / src_pitch) {
+ return 0;
+ }
+ src_pitch *= m_nComponents;
+ if (src_pitch > 0 && (FX_DWORD)m_Width > (unsigned)INT_MAX / src_pitch) {
+ return 0;
+ }
+ src_pitch *= m_Width;
+ if (src_pitch + 7 < src_pitch) {
+ return 0;
+ }
+ src_pitch += 7;
+ src_pitch /= 8;
+ if (src_pitch > 0 && (FX_DWORD)m_Height > (unsigned)INT_MAX / src_pitch) {
+ return 0;
+ }
+ }
+ m_pStreamAcc = FX_NEW CPDF_StreamAcc;
+ m_pStreamAcc->LoadAllData(pStream, FALSE, m_Height * src_pitch, TRUE);
+ if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
+ return 0;
+ }
+ const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
+ if (!decoder.IsEmpty() && decoder == FX_BSTRC("CCITTFaxDecode")) {
+ m_bpc = 1;
+ }
+ int ret = CreateDecoder();
+ if (ret != 1) {
+ if (!ret) {
+ return ret;
+ }
+ if (!ContinueToLoadMask()) {
+ return 0;
+ }
+ if (m_bHasMask) {
+ StratLoadMask();
+ }
+ return ret;
+ }
+ if (!ContinueToLoadMask()) {
+ return 0;
+ }
+ if (m_bHasMask) {
+ ret = StratLoadMask();
+ }
+ if (ret == 2) {
+ return ret;
+ }
+ if (m_pColorSpace && m_bStdCS) {
+ m_pColorSpace->EnableStdConversion(FALSE);
+ }
+ return ret;
+}
+int CPDF_DIBSource::ContinueLoadDIBSource(IFX_Pause* pPause)
+{
+ FXCODEC_STATUS ret;
+ if (m_Status == 1) {
+ const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
+ if (decoder == FX_BSTRC("JPXDecode")) {
+ return 0;
+ }
+ ICodec_Jbig2Module* pJbig2Moudle = CPDF_ModuleMgr::Get()->GetJbig2Module();
+ if (m_pJbig2Context == NULL) {
+ m_pJbig2Context = pJbig2Moudle->CreateJbig2Context();
+ if (m_pStreamAcc->GetImageParam()) {
+ CPDF_Stream* pGlobals = m_pStreamAcc->GetImageParam()->GetStream(FX_BSTRC("JBIG2Globals"));
+ if (pGlobals) {
+ m_pGlobalStream = FX_NEW CPDF_StreamAcc;
+ m_pGlobalStream->LoadAllData(pGlobals, FALSE);
+ }
+ }
+ ret = pJbig2Moudle->StartDecode(m_pJbig2Context, m_Width, m_Height, m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(),
+ m_pGlobalStream ? m_pGlobalStream->GetData() : NULL, m_pGlobalStream ? m_pGlobalStream->GetSize() : 0, m_pCachedBitmap->GetBuffer(),
+ m_pCachedBitmap->GetPitch(), pPause);
+ if (ret < 0) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ if (m_pGlobalStream) {
+ delete m_pGlobalStream;
+ }
+ m_pGlobalStream = NULL;
+ pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
+ m_pJbig2Context = NULL;
+ return 0;
+ }
+ if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ return 2;
+ }
+ int ret1 = 1;
+ if (m_bHasMask) {
+ ret1 = ContinueLoadMaskDIB(pPause);
+ m_Status = 2;
+ }
+ if (ret1 == 2) {
+ return ret1;
+ }
+ if (m_pColorSpace && m_bStdCS) {
+ m_pColorSpace->EnableStdConversion(FALSE);
+ }
+ return ret1;
+ }
+ FXCODEC_STATUS ret = pJbig2Moudle->ContinueDecode(m_pJbig2Context, pPause);
+ if (ret < 0) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ if (m_pGlobalStream) {
+ delete m_pGlobalStream;
+ }
+ m_pGlobalStream = NULL;
+ pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
+ m_pJbig2Context = NULL;
+ return 0;
+ }
+ if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
+ return 2;
+ }
+ int ret1 = 1;
+ if (m_bHasMask) {
+ ret1 = ContinueLoadMaskDIB(pPause);
+ m_Status = 2;
+ }
+ if (ret1 == 2) {
+ return ret1;
+ }
+ if (m_pColorSpace && m_bStdCS) {
+ m_pColorSpace->EnableStdConversion(FALSE);
+ }
+ return ret1;
+ } else if (m_Status == 2) {
+ return ContinueLoadMaskDIB(pPause);
+ }
+ return 0;
+}
+FX_BOOL CPDF_DIBSource::LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources)
+{
+ if (m_pDict->GetInteger("ImageMask")) {
+ m_bImageMask = TRUE;
+ }
+ if (m_bImageMask || !m_pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
+ if (!m_bImageMask) {
+ CPDF_Object* pFilter = m_pDict->GetElementValue(FX_BSTRC("Filter"));
+ if (pFilter) {
+ CFX_ByteString filter;
+ if (pFilter->GetType() == PDFOBJ_NAME) {
+ filter = pFilter->GetString();
+ if (filter == FX_BSTRC("JPXDecode")) {
+ return TRUE;
+ }
+ } else if (pFilter->GetType() == PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = (CPDF_Array*)pFilter;
+ if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("JPXDecode")) {
+ return TRUE;
+ }
+ }
+ }
+ }
+ m_bImageMask = TRUE;
+ m_bpc = m_nComponents = 1;
+ CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode"));
+ m_bDefaultDecode = pDecode == NULL || pDecode->GetInteger(0) == 0;
+ return TRUE;
+ }
+ CPDF_Object* pCSObj = m_pDict->GetElementValue(FX_BSTRC("ColorSpace"));
+ if (pCSObj == NULL) {
+ return FALSE;
+ }
+ CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData();
+ if (pFormResources) {
+ m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pFormResources);
+ }
+ if (m_pColorSpace == NULL) {
+ m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pPageResources);
+ }
+ if (m_pColorSpace == NULL) {
+ return FALSE;
+ }
+ m_bpc = m_pDict->GetInteger(FX_BSTRC("BitsPerComponent"));
+ m_Family = m_pColorSpace->GetFamily();
+ m_nComponents = m_pColorSpace->CountComponents();
+ if (m_Family == PDFCS_ICCBASED && pCSObj->GetType() == PDFOBJ_NAME) {
+ CFX_ByteString cs = pCSObj->GetString();
+ if (cs == FX_BSTRC("DeviceGray")) {
+ m_nComponents = 1;
+ } else if (cs == FX_BSTRC("DeviceRGB")) {
+ m_nComponents = 3;
+ } else if (cs == FX_BSTRC("DeviceCMYK")) {
+ m_nComponents = 4;
+ }
+ }
+ m_pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents);
+ if (m_bpc == 0) {
+ return TRUE;
+ }
+ int max_data = (1 << m_bpc) - 1;
+ CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode"));
+ if (pDecode) {
+ for (FX_DWORD i = 0; i < m_nComponents; i ++) {
+ m_pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2);
+ FX_FLOAT max = pDecode->GetNumber(i * 2 + 1);
+ m_pCompData[i].m_DecodeStep = (max - m_pCompData[i].m_DecodeMin) / max_data;
+ FX_FLOAT def_value, def_min, def_max;
+ m_pColorSpace->GetDefaultValue(i, def_value, def_min, def_max);
+ if (m_Family == PDFCS_INDEXED) {
+ def_max = (FX_FLOAT)max_data;
+ }
+ if (def_min != m_pCompData[i].m_DecodeMin || def_max != max) {
+ m_bDefaultDecode = FALSE;
+ }
+ }
+ } else {
+ for (FX_DWORD i = 0; i < m_nComponents; i ++) {
+ FX_FLOAT def_value;
+ m_pColorSpace->GetDefaultValue(i, def_value, m_pCompData[i].m_DecodeMin, m_pCompData[i].m_DecodeStep);
+ if (m_Family == PDFCS_INDEXED) {
+ m_pCompData[i].m_DecodeStep = (FX_FLOAT)max_data;
+ }
+ m_pCompData[i].m_DecodeStep = (m_pCompData[i].m_DecodeStep - m_pCompData[i].m_DecodeMin) / max_data;
+ }
+ }
+ if (!m_pDict->KeyExist(FX_BSTRC("SMask"))) {
+ CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask"));
+ if (pMask == NULL) {
+ return TRUE;
+ }
+ if (pMask->GetType() == PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = (CPDF_Array*)pMask;
+ if (pArray->GetCount() >= m_nComponents * 2)
+ for (FX_DWORD i = 0; i < m_nComponents * 2; i ++) {
+ if (i % 2) {
+ m_pCompData[i / 2].m_ColorKeyMax = pArray->GetInteger(i);
+ } else {
+ m_pCompData[i / 2].m_ColorKeyMin = pArray->GetInteger(i);
+ }
+ }
+ m_bColorKey = TRUE;
+ }
+ }
+ return TRUE;
+}
+ICodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ const CPDF_Dictionary* pParams);
+ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
+ int nComps, int bpc, const CPDF_Dictionary* pParams);
+int CPDF_DIBSource::CreateDecoder()
+{
+ const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
+ if (decoder.IsEmpty()) {
+ return 1;
+ }
+ FX_LPCBYTE src_data = m_pStreamAcc->GetData();
+ FX_DWORD src_size = m_pStreamAcc->GetSize();
+ const CPDF_Dictionary* pParams = m_pStreamAcc->GetImageParam();
+ if (decoder == FX_BSTRC("CCITTFaxDecode")) {
+ m_pDecoder = FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, m_Height, pParams);
+ } else if (decoder == FX_BSTRC("DCTDecode")) {
+ m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
+ m_nComponents, pParams ? pParams->GetInteger(FX_BSTR("ColorTransform"), 1) : 1);
+ if (NULL == m_pDecoder) {
+ FX_BOOL bTransform = FALSE;
+ int comps, bpc;
+ ICodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule();
+ if (pJpegModule->LoadInfo(src_data, src_size, m_Width, m_Height, comps, bpc, bTransform)) {
+ m_nComponents = comps;
+ m_bpc = bpc;
+ m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
+ m_nComponents, bTransform);
+ }
+ }
+ } else if (decoder == FX_BSTRC("FlateDecode")) {
+ m_pDecoder = FPDFAPI_CreateFlateDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams);
+ } else if (decoder == FX_BSTRC("JPXDecode")) {
+ LoadJpxBitmap();
+ return m_pCachedBitmap != NULL ? 1 : 0;
+ } else if (decoder == FX_BSTRC("JBIG2Decode")) {
+ m_pCachedBitmap = FX_NEW CFX_DIBitmap;
+ if (!m_pCachedBitmap->Create(m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ return 0;
+ }
+ m_Status = 1;
+ return 2;
+ } else if (decoder == FX_BSTRC("RunLengthDecode")) {
+ m_pDecoder = CPDF_ModuleMgr::Get()->GetCodecModule()->GetBasicModule()->CreateRunLengthDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc);
+ }
+ if (m_pDecoder) {
+ int requested_pitch = (m_Width * m_nComponents * m_bpc + 7) / 8;
+ int provided_pitch = (m_pDecoder->GetWidth() * m_pDecoder->CountComps() * m_pDecoder->GetBPC() + 7) / 8;
+ if (provided_pitch < requested_pitch) {
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+void CPDF_DIBSource::LoadJpxBitmap()
+{
+ ICodec_JpxModule* pJpxModule = CPDF_ModuleMgr::Get()->GetJpxModule();
+ if (pJpxModule == NULL) {
+ return;
+ }
+ FX_LPVOID ctx = pJpxModule->CreateDecoder(m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(), m_pColorSpace != NULL);
+ if (ctx == NULL) {
+ return;
+ }
+ FX_DWORD width = 0, height = 0, codestream_nComps = 0, image_nComps = 0;
+ pJpxModule->GetImageInfo(ctx, width, height, codestream_nComps, image_nComps);
+ if ((int)width < m_Width || (int)height < m_Height) {
+ pJpxModule->DestroyDecoder(ctx);
+ return;
+ }
+ int output_nComps;
+ FX_BOOL bTranslateColor, bSwapRGB = FALSE;
+ if (m_pColorSpace) {
+ if (codestream_nComps != (FX_DWORD)m_pColorSpace->CountComponents()) {
+ return;
+ }
+ output_nComps = codestream_nComps;
+ bTranslateColor = FALSE;
+ if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB)) {
+ bSwapRGB = TRUE;
+ m_pColorSpace = NULL;
+ }
+ } else {
+ bTranslateColor = TRUE;
+ if (image_nComps) {
+ output_nComps = image_nComps;
+ } else {
+ output_nComps = codestream_nComps;
+ }
+ if (output_nComps == 3) {
+ bSwapRGB = TRUE;
+ } else if (output_nComps == 4) {
+ m_pColorSpace = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
+ bTranslateColor = FALSE;
+ }
+ m_nComponents = output_nComps;
+ }
+ FXDIB_Format format;
+ if (output_nComps == 1) {
+ format = FXDIB_8bppRgb;
+ } else if (output_nComps <= 3) {
+ format = FXDIB_Rgb;
+ } else if (output_nComps == 4) {
+ format = FXDIB_Rgb32;
+ } else {
+ width = (width * output_nComps + 2) / 3;
+ format = FXDIB_Rgb;
+ }
+ m_pCachedBitmap = FX_NEW CFX_DIBitmap;
+ if (!m_pCachedBitmap->Create(width, height, format)) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ return;
+ }
+ m_pCachedBitmap->Clear(0xFFFFFFFF);
+ FX_LPBYTE output_offsets = FX_Alloc(FX_BYTE, output_nComps);
+ for (int i = 0; i < output_nComps; i ++) {
+ output_offsets[i] = i;
+ }
+ if (bSwapRGB) {
+ output_offsets[0] = 2;
+ output_offsets[2] = 0;
+ }
+ if (!pJpxModule->Decode(ctx, m_pCachedBitmap->GetBuffer(), m_pCachedBitmap->GetPitch(), bTranslateColor, output_offsets)) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ return;
+ }
+ FX_Free(output_offsets);
+ pJpxModule->DestroyDecoder(ctx);
+ if (m_pColorSpace && m_pColorSpace->GetFamily() == PDFCS_INDEXED && m_bpc < 8) {
+ int scale = 8 - m_bpc;
+ for (FX_DWORD row = 0; row < height; row ++) {
+ FX_LPBYTE scanline = (FX_LPBYTE)m_pCachedBitmap->GetScanline(row);
+ for (FX_DWORD col = 0; col < width; col ++) {
+ *scanline = (*scanline) >> scale;
+ scanline++;
+ }
+ }
+ }
+ m_bpc = 8;
+}
+void CPDF_DIBSource::LoadJbig2Bitmap()
+{
+ ICodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module();
+ if (pJbig2Module == NULL) {
+ return;
+ }
+ CPDF_StreamAcc* pGlobalStream = NULL;
+ if (m_pStreamAcc->GetImageParam()) {
+ CPDF_Stream* pGlobals = m_pStreamAcc->GetImageParam()->GetStream(FX_BSTRC("JBIG2Globals"));
+ if (pGlobals) {
+ pGlobalStream = FX_NEW CPDF_StreamAcc;
+ pGlobalStream->LoadAllData(pGlobals, FALSE);
+ }
+ }
+ m_pCachedBitmap = FX_NEW CFX_DIBitmap;
+ if (!m_pCachedBitmap->Create(m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) {
+ return;
+ }
+ int ret = pJbig2Module->Decode(m_Width, m_Height, m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(),
+ pGlobalStream ? pGlobalStream->GetData() : NULL, pGlobalStream ? pGlobalStream->GetSize() : 0,
+ m_pCachedBitmap->GetBuffer(), m_pCachedBitmap->GetPitch());
+ if (ret < 0) {
+ delete m_pCachedBitmap;
+ m_pCachedBitmap = NULL;
+ }
+ if (pGlobalStream) {
+ delete pGlobalStream;
+ }
+ m_bpc = 1;
+ m_nComponents = 1;
+}
+CPDF_DIBSource* CPDF_DIBSource::LoadMask(FX_DWORD& MatteColor)
+{
+ MatteColor = 0xffffffff;
+ CPDF_Stream* pSoftMask = m_pDict->GetStream(FX_BSTRC("SMask"));
+ if (pSoftMask) {
+ CPDF_Array* pMatte = pSoftMask->GetDict()->GetArray(FX_BSTRC("Matte"));
+ if (pMatte != NULL && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) {
+ FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents);
+ for (FX_DWORD i = 0; i < m_nComponents; i ++) {
+ pColor[i] = pMatte->GetFloat(i);
+ }
+ FX_FLOAT R, G, B;
+ m_pColorSpace->GetRGB(pColor, R, G, B);
+ FX_Free(pColor);
+ MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
+ }
+ return LoadMaskDIB(pSoftMask);
+ }
+ CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask"));
+ if (pMask == NULL) {
+ return NULL;
+ }
+ if (pMask->GetType() == PDFOBJ_STREAM) {
+ return LoadMaskDIB((CPDF_Stream*)pMask);
+ }
+ return NULL;
+}
+int CPDF_DIBSource::StratLoadMask()
+{
+ m_MatteColor = 0xffffffff;
+ m_pMaskStream = m_pDict->GetStream(FX_BSTRC("SMask"));
+ if (m_pMaskStream) {
+ CPDF_Array* pMatte = m_pMaskStream->GetDict()->GetArray(FX_BSTRC("Matte"));
+ if (pMatte != NULL && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) {
+ FX_FLOAT R, G, B;
+ FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents);
+ for (FX_DWORD i = 0; i < m_nComponents; i ++) {
+ pColor[i] = pMatte->GetFloat(i);
+ }
+ m_pColorSpace->GetRGB(pColor, R, G, B);
+ FX_Free(pColor);
+ m_MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
+ }
+ return StartLoadMaskDIB();
+ }
+ m_pMaskStream = m_pDict->GetElementValue(FX_BSTRC("Mask"));
+ if (m_pMaskStream == NULL) {
+ return 1;
+ }
+ if (m_pMaskStream->GetType() == PDFOBJ_STREAM) {
+ return StartLoadMaskDIB();
+ }
+ return 1;
+}
+int CPDF_DIBSource::ContinueLoadMaskDIB(IFX_Pause* pPause)
+{
+ if (m_pMask == NULL) {
+ return 1;
+ }
+ int ret = m_pMask->ContinueLoadDIBSource(pPause);
+ if (ret == 2) {
+ return ret;
+ }
+ if (m_pColorSpace && m_bStdCS) {
+ m_pColorSpace->EnableStdConversion(FALSE);
+ }
+ if (!ret) {
+ delete m_pMask;
+ m_pMask = NULL;
+ return ret;
+ }
+ return 1;
+}
+CPDF_DIBSource* CPDF_DIBSource::DetachMask()
+{
+ CPDF_DIBSource* pDIBSource = m_pMask;
+ m_pMask = NULL;
+ return pDIBSource;
+}
+CPDF_DIBSource* CPDF_DIBSource::LoadMaskDIB(CPDF_Stream* pMask)
+{
+ CPDF_DIBSource* pMaskSource = FX_NEW CPDF_DIBSource;
+ if (!pMaskSource->Load(m_pDocument, pMask, NULL, NULL, NULL, NULL, TRUE)) {
+ delete pMaskSource;
+ return NULL;
+ }
+ return pMaskSource;
+}
+int CPDF_DIBSource::StartLoadMaskDIB()
+{
+ m_pMask = FX_NEW CPDF_DIBSource;
+ int ret = m_pMask->StartLoadDIBSource(m_pDocument, (CPDF_Stream*)m_pMaskStream, FALSE, NULL, NULL, TRUE);
+ if (ret == 2) {
+ if (m_Status == 0) {
+ m_Status = 2;
+ }
+ return 2;
+ }
+ if (!ret) {
+ delete m_pMask;
+ m_pMask = NULL;
+ return 1;
+ }
+ return 1;
+}
+void CPDF_DIBSource::LoadPalette()
+{
+ if (m_bpc * m_nComponents > 8) {
+ return;
+ }
+ if (m_pColorSpace == NULL) {
+ return;
+ }
+ if (m_bpc * m_nComponents == 1) {
+ if (m_bDefaultDecode && (m_Family == PDFCS_DEVICEGRAY || m_Family == PDFCS_DEVICERGB)) {
+ return;
+ }
+ if (m_pColorSpace->CountComponents() > 3) {
+ return;
+ }
+ FX_FLOAT color_values[3];
+ color_values[0] = m_pCompData[0].m_DecodeMin;
+ color_values[1] = color_values[2] = color_values[0];
+ FX_FLOAT R, G, B;
+ m_pColorSpace->GetRGB(color_values, R, G, B);
+ FX_ARGB argb0 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
+ color_values[0] += m_pCompData[0].m_DecodeStep;
+ color_values[1] += m_pCompData[0].m_DecodeStep;
+ color_values[2] += m_pCompData[0].m_DecodeStep;
+ m_pColorSpace->GetRGB(color_values, R, G, B);
+ FX_ARGB argb1 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
+ if (argb0 != 0xFF000000 || argb1 != 0xFFFFFFFF) {
+ SetPaletteArgb(0, argb0);
+ SetPaletteArgb(1, argb1);
+ }
+ return;
+ }
+ if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY) && m_bpc == 8 && m_bDefaultDecode) {
+ } else {
+ int palette_count = 1 << (m_bpc * m_nComponents);
+ CFX_FixedBufGrow<FX_FLOAT, 16> color_values(m_nComponents);
+ FX_FLOAT* color_value = color_values;
+ for (int i = 0; i < palette_count; i ++) {
+ int color_data = i;
+ for (FX_DWORD j = 0; j < m_nComponents; j ++) {
+ int encoded_component = color_data % (1 << m_bpc);
+ color_data /= 1 << m_bpc;
+ color_value[j] = m_pCompData[j].m_DecodeMin + m_pCompData[j].m_DecodeStep * encoded_component;
+ }
+ FX_FLOAT R = 0, G = 0, B = 0;
+ if (m_nComponents == 1 && m_Family == PDFCS_ICCBASED && m_pColorSpace->CountComponents() > 1) {
+ int nComponents = m_pColorSpace->CountComponents();
+ FX_FLOAT* temp_buf = FX_Alloc(FX_FLOAT, nComponents);
+ for (int i = 0; i < nComponents; i++) {
+ temp_buf[i] = *color_value;
+ }
+ m_pColorSpace->GetRGB(temp_buf, R, G, B);
+ FX_Free(temp_buf);
+ } else {
+ m_pColorSpace->GetRGB(color_value, R, G, B);
+ }
+ SetPaletteArgb(i, ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)));
+ }
+ }
+}
+
+FX_DWORD CPDF_DIBSource::GetValidBpp() const
+{
+ FX_DWORD bpc = m_bpc;
+ CPDF_Object * pFilter = m_pDict->GetElementValue(FX_BSTRC("Filter"));
+ if(pFilter)
+ {
+ if(pFilter->GetType() == PDFOBJ_NAME)
+ {
+ CFX_ByteString filter = pFilter->GetString();
+ if(filter == FX_BSTRC("CCITTFaxDecode") || filter == FX_BSTRC("JBIG2Decode") )
+ bpc = 1;
+ if(filter == FX_BSTRC("RunLengthDecode") || filter == FX_BSTRC("DCTDecode") )
+ bpc = 8;
+ }
+ else if (pFilter->GetType() == PDFOBJ_ARRAY)
+ {
+ CPDF_Array *pArray = (CPDF_Array *) pFilter;
+ if( pArray->GetString(pArray->GetCount() -1) == FX_BSTRC("CCITTFacDecode") ||
+ pArray->GetString(pArray->GetCount() -1) == FX_BSTRC("JBIG2Decode") )
+ bpc = 1;
+
+ if( pArray->GetString(pArray->GetCount() -1) == FX_BSTRC("RunLengthDecode") ||
+ pArray->GetString(pArray->GetCount() -1) == FX_BSTRC("DCTDecode") )
+ bpc = 8;
+ }
+ }
+
+ return bpc;
+}
+
+#define NORMALCOLOR_MAX(color, max) (color) > (max) ? (max) : (color) < 0 ? 0 : (color);
+void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan) const
+{
+ int max_data = (1 << m_bpc) - 1;
+ if (m_bDefaultDecode) {
+ if (m_Family == PDFCS_DEVICERGB || m_Family == PDFCS_CALRGB) {
+ if (m_bpc == 16) {
+ FX_LPBYTE dest_pos = dest_scan;
+ FX_LPCBYTE src_pos = src_scan;
+ for (int col = 0; col < m_Width; col ++) {
+ *dest_scan++ = src_pos[4];
+ *dest_scan++ = src_pos[2];
+ *dest_scan++ = *src_pos;
+ src_pos += 6;
+ }
+ } else if (m_bpc == 8) {
+ FX_LPBYTE dest_pos = dest_scan;
+ FX_LPCBYTE src_pos = src_scan;
+ for (int column = 0; column < m_Width; column ++) {
+ *dest_scan++ = src_pos[2];
+ *dest_scan++ = src_pos[1];
+ *dest_scan++ = *src_pos;
+ src_pos += 3;
+ }
+ } else {
+ int src_bit_pos = 0;
+ int dest_byte_pos = 0;
+
+ FX_DWORD bpc = GetValidBpp();
+
+ for (int column = 0; column < m_Width; column ++) {
+ int R = _GetBits8(src_scan, src_bit_pos, bpc);
+ src_bit_pos += bpc;
+ int G = _GetBits8(src_scan, src_bit_pos, bpc);
+ src_bit_pos += bpc;
+ int B = _GetBits8(src_scan, src_bit_pos, bpc);
+ src_bit_pos += bpc;
+ R = NORMALCOLOR_MAX(R, max_data);
+ G = NORMALCOLOR_MAX(G, max_data);
+ B = NORMALCOLOR_MAX(B, max_data);
+ dest_scan[dest_byte_pos] = B * 255 / max_data;
+ dest_scan[dest_byte_pos + 1] = G * 255 / max_data;
+ dest_scan[dest_byte_pos + 2] = R * 255 / max_data;
+ dest_byte_pos += 3;
+ }
+ }
+ return;
+ } else if (m_bpc == 8) {
+ if (m_nComponents == m_pColorSpace->CountComponents())
+ m_pColorSpace->TranslateImageLine(dest_scan, src_scan, m_Width, m_Width, m_Height,
+ m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
+ return;
+ }
+ }
+ CFX_FixedBufGrow<FX_FLOAT, 16> color_values1(m_nComponents);
+ FX_FLOAT* color_values = color_values1;
+ FX_FLOAT R, G, B;
+ if (m_bpc == 8) {
+ int src_byte_pos = 0;
+ int dest_byte_pos = 0;
+ for (int column = 0; column < m_Width; column ++) {
+ for (FX_DWORD color = 0; color < m_nComponents; color ++) {
+ int data = src_scan[src_byte_pos ++];
+ color_values[color] = m_pCompData[color].m_DecodeMin +
+ m_pCompData[color].m_DecodeStep * data;
+ }
+ if (m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK) {
+ FX_FLOAT k = 1.0f - color_values[3];
+ R = (1.0f - color_values[0]) * k;
+ G = (1.0f - color_values[1]) * k;
+ B = (1.0f - color_values[2]) * k;
+ } else {
+ m_pColorSpace->GetRGB(color_values, R, G, B);
+ }
+ R = NORMALCOLOR_MAX(R, 1);
+ G = NORMALCOLOR_MAX(G, 1);
+ B = NORMALCOLOR_MAX(B, 1);
+ dest_scan[dest_byte_pos] = (FX_INT32)(B * 255);
+ dest_scan[dest_byte_pos + 1] = (FX_INT32)(G * 255);
+ dest_scan[dest_byte_pos + 2] = (FX_INT32)(R * 255);
+ dest_byte_pos += 3;
+ }
+ } else {
+ int src_bit_pos = 0;
+ int dest_byte_pos = 0;
+
+ FX_DWORD bpc = GetValidBpp();
+
+ for (int column = 0; column < m_Width; column ++) {
+ for (FX_DWORD color = 0; color < m_nComponents; color ++) {
+ int data = _GetBits8(src_scan, src_bit_pos, bpc);
+ color_values[color] = m_pCompData[color].m_DecodeMin +
+ m_pCompData[color].m_DecodeStep * data;
+ src_bit_pos += bpc;
+ }
+ if (m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK) {
+ FX_FLOAT k = 1.0f - color_values[3];
+ R = (1.0f - color_values[0]) * k;
+ G = (1.0f - color_values[1]) * k;
+ B = (1.0f - color_values[2]) * k;
+ } else {
+ m_pColorSpace->GetRGB(color_values, R, G, B);
+ }
+ R = NORMALCOLOR_MAX(R, 1);
+ G = NORMALCOLOR_MAX(G, 1);
+ B = NORMALCOLOR_MAX(B, 1);
+ dest_scan[dest_byte_pos] = (FX_INT32)(B * 255);
+ dest_scan[dest_byte_pos + 1] = (FX_INT32)(G * 255);
+ dest_scan[dest_byte_pos + 2] = (FX_INT32)(R * 255);
+ dest_byte_pos += 3;
+ }
+ }
+}
+FX_LPBYTE CPDF_DIBSource::GetBuffer() const
+{
+ if (m_pCachedBitmap) {
+ return m_pCachedBitmap->GetBuffer();
+ }
+ return NULL;
+}
+FX_LPCBYTE CPDF_DIBSource::GetScanline(int line) const
+{
+ FX_DWORD src_pitch = (m_Width * m_bpc * m_nComponents + 7) / 8;
+ FX_LPCBYTE pSrcLine = NULL;
+ if (m_pCachedBitmap) {
+ if (line >= m_pCachedBitmap->GetHeight()) {
+ line = m_pCachedBitmap->GetHeight() - 1;
+ }
+ pSrcLine = m_pCachedBitmap->GetScanline(line);
+ } else if (m_pDecoder) {
+ pSrcLine = m_pDecoder->GetScanline(line);
+ } else {
+ if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch) {
+ pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
+ }
+ }
+ if (pSrcLine == NULL) {
+ FX_LPBYTE pLineBuf = m_pMaskedLine ? m_pMaskedLine : m_pLineBuf;
+ FXSYS_memset8(pLineBuf, 0xff, m_Pitch);
+ return pLineBuf;
+ }
+ if (m_bpc * m_nComponents == 1) {
+ if (m_bImageMask && m_bDefaultDecode) {
+ for (FX_DWORD i = 0; i < src_pitch; i ++) {
+ m_pLineBuf[i] = ~pSrcLine[i];
+ }
+ } else if (m_bColorKey) {
+ FX_DWORD reset_argb, set_argb;
+ reset_argb = m_pPalette ? m_pPalette[0] : 0xff000000;
+ set_argb = m_pPalette ? m_pPalette[1] : 0xffffffff;
+ if (m_pCompData[0].m_ColorKeyMin == 0) {
+ reset_argb = 0;
+ }
+ if (m_pCompData[0].m_ColorKeyMax == 1) {
+ set_argb = 0;
+ }
+ set_argb = FXARGB_TODIB(set_argb);
+ reset_argb = FXARGB_TODIB(reset_argb);
+ FX_DWORD* dest_scan = (FX_DWORD*)m_pMaskedLine;
+ for (int col = 0; col < m_Width; col ++) {
+ if (pSrcLine[col / 8] & (1 << (7 - col % 8))) {
+ *dest_scan = set_argb;
+ } else {
+ *dest_scan = reset_argb;
+ }
+ dest_scan ++;
+ }
+ return m_pMaskedLine;
+ } else {
+ FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch);
+ }
+ return m_pLineBuf;
+ }
+ if (m_bpc * m_nComponents <= 8) {
+ if (m_bpc == 8) {
+ FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch);
+ } else {
+ int src_bit_pos = 0;
+ for (int col = 0; col < m_Width; col ++) {
+ int color_index = 0;
+ for (FX_DWORD color = 0; color < m_nComponents; color ++) {
+ int data = _GetBits8(pSrcLine, src_bit_pos, m_bpc);
+ color_index |= data << (color * m_bpc);
+ src_bit_pos += m_bpc;
+ }
+ m_pLineBuf[col] = color_index;
+ }
+ }
+ if (m_bColorKey) {
+ FX_LPBYTE pDestPixel = m_pMaskedLine;
+ FX_LPCBYTE pSrcPixel = m_pLineBuf;
+ for (int col = 0; col < m_Width; col ++) {
+ FX_BYTE index = *pSrcPixel++;
+ if (m_pPalette) {
+ *pDestPixel++ = FXARGB_B(m_pPalette[index]);
+ *pDestPixel++ = FXARGB_G(m_pPalette[index]);
+ *pDestPixel++ = FXARGB_R(m_pPalette[index]);
+ } else {
+ *pDestPixel++ = index;
+ *pDestPixel++ = index;
+ *pDestPixel++ = index;
+ }
+ *pDestPixel = (index < m_pCompData[0].m_ColorKeyMin || index > m_pCompData[0].m_ColorKeyMax) ? 0xff : 0;
+ pDestPixel ++ ;
+ }
+ return m_pMaskedLine;
+ }
+ return m_pLineBuf;
+ }
+ if (m_bColorKey) {
+ if (m_nComponents == 3 && m_bpc == 8) {
+ FX_LPBYTE alpha_channel = m_pMaskedLine + 3;
+ for (int col = 0; col < m_Width; col ++) {
+ FX_LPCBYTE pPixel = pSrcLine + col * 3;
+ alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin ||
+ pPixel[0] > m_pCompData[0].m_ColorKeyMax ||
+ pPixel[1] < m_pCompData[1].m_ColorKeyMin || pPixel[1] > m_pCompData[1].m_ColorKeyMax ||
+ pPixel[2] < m_pCompData[2].m_ColorKeyMin || pPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0;
+ }
+ } else {
+ FXSYS_memset8(m_pMaskedLine, 0xff, m_Pitch);
+ }
+ }
+ if (m_pColorSpace) {
+ TranslateScanline24bpp(m_pLineBuf, pSrcLine);
+ pSrcLine = m_pLineBuf;
+ }
+ if (m_bColorKey) {
+ FX_LPCBYTE pSrcPixel = pSrcLine;
+ FX_LPBYTE pDestPixel = m_pMaskedLine;
+ for (int col = 0; col < m_Width; col ++) {
+ *pDestPixel++ = *pSrcPixel++;
+ *pDestPixel++ = *pSrcPixel++;
+ *pDestPixel++ = *pSrcPixel++;
+ pDestPixel ++;
+ }
+ return m_pMaskedLine;
+ }
+ return pSrcLine;
+}
+FX_BOOL CPDF_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const
+{
+ if (m_pDecoder) {
+ return m_pDecoder->SkipToScanline(line, pPause);
+ }
+ return FALSE;
+}
+void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
+ int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const
+{
+ FX_DWORD src_width = m_Width;
+ FX_DWORD src_pitch = (src_width * m_bpc * m_nComponents + 7) / 8;
+ FX_LPCBYTE pSrcLine = NULL;
+ if (m_pCachedBitmap) {
+ pSrcLine = m_pCachedBitmap->GetScanline(line);
+ } else if (m_pDecoder) {
+ pSrcLine = m_pDecoder->GetScanline(line);
+ } else {
+ if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch) {
+ pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
+ }
+ }
+ int orig_Bpp = m_bpc * m_nComponents / 8;
+ int dest_Bpp = dest_bpp / 8;
+ if (pSrcLine == NULL) {
+ FXSYS_memset32(dest_scan, 0xff, dest_Bpp * clip_width);
+ return;
+ }
+ CFX_FixedBufGrow<FX_BYTE, 128> temp(orig_Bpp);
+ if (m_bpc * m_nComponents == 1) {
+ FX_DWORD set_argb = (FX_DWORD) - 1, reset_argb = 0;
+ if (m_bImageMask) {
+ if (m_bDefaultDecode) {
+ set_argb = 0;
+ reset_argb = (FX_DWORD) - 1;
+ }
+ } else if (m_bColorKey) {
+ reset_argb = m_pPalette ? m_pPalette[0] : 0xff000000;
+ set_argb = m_pPalette ? m_pPalette[1] : 0xffffffff;
+ if (m_pCompData[0].m_ColorKeyMin == 0) {
+ reset_argb = 0;
+ }
+ if (m_pCompData[0].m_ColorKeyMax == 1) {
+ set_argb = 0;
+ }
+ set_argb = FXARGB_TODIB(set_argb);
+ reset_argb = FXARGB_TODIB(reset_argb);
+ for (int i = 0; i < clip_width; i ++) {
+ FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
+ if (bFlipX) {
+ src_x = src_width - src_x - 1;
+ }
+ src_x %= src_width;
+ if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) {
+ ((FX_DWORD*)dest_scan)[i] = set_argb;
+ } else {
+ ((FX_DWORD*)dest_scan)[i] = reset_argb;
+ }
+ }
+ return;
+ } else {
+ if (dest_Bpp == 1) {
+ } else if (m_pPalette) {
+ reset_argb = m_pPalette[0];
+ set_argb = m_pPalette[1];
+ }
+ }
+ for (int i = 0; i < clip_width; i ++) {
+ FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
+ if (bFlipX) {
+ src_x = src_width - src_x - 1;
+ }
+ src_x %= src_width;
+ int dest_pos = i * dest_Bpp;
+ if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) {
+ if (dest_Bpp == 1) {
+ dest_scan[dest_pos] = (FX_BYTE)set_argb;
+ } else if (dest_Bpp == 3) {
+ dest_scan[dest_pos] = FXARGB_B(set_argb);
+ dest_scan[dest_pos + 1] = FXARGB_G(set_argb);
+ dest_scan[dest_pos + 2] = FXARGB_R(set_argb);
+ } else {
+ *(FX_DWORD*)(dest_scan + dest_pos) = set_argb;
+ }
+ } else {
+ if (dest_Bpp == 1) {
+ dest_scan[dest_pos] = (FX_BYTE)reset_argb;
+ } else if (dest_Bpp == 3) {
+ dest_scan[dest_pos] = FXARGB_B(reset_argb);
+ dest_scan[dest_pos + 1] = FXARGB_G(reset_argb);
+ dest_scan[dest_pos + 2] = FXARGB_R(reset_argb);
+ } else {
+ *(FX_DWORD*)(dest_scan + dest_pos) = reset_argb;
+ }
+ }
+ }
+ return;
+ } else if (m_bpc * m_nComponents <= 8) {
+ if (m_bpc < 8) {
+ int src_bit_pos = 0;
+ for (FX_DWORD col = 0; col < src_width; col ++) {
+ int color_index = 0;
+ for (FX_DWORD color = 0; color < m_nComponents; color ++) {
+ int data = _GetBits8(pSrcLine, src_bit_pos, m_bpc);
+ color_index |= data << (color * m_bpc);
+ src_bit_pos += m_bpc;
+ }
+ m_pLineBuf[col] = color_index;
+ }
+ pSrcLine = m_pLineBuf;
+ }
+ if (m_bColorKey) {
+ for (int i = 0; i < clip_width; i ++) {
+ FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
+ if (bFlipX) {
+ src_x = src_width - src_x - 1;
+ }
+ src_x %= src_width;
+ FX_LPBYTE pDestPixel = dest_scan + i * 4;
+ FX_BYTE index = pSrcLine[src_x];
+ if (m_pPalette) {
+ *pDestPixel++ = FXARGB_B(m_pPalette[index]);
+ *pDestPixel++ = FXARGB_G(m_pPalette[index]);
+ *pDestPixel++ = FXARGB_R(m_pPalette[index]);
+ } else {
+ *pDestPixel++ = index;
+ *pDestPixel++ = index;
+ *pDestPixel++ = index;
+ }
+ *pDestPixel = (index < m_pCompData[0].m_ColorKeyMin || index > m_pCompData[0].m_ColorKeyMax) ? 0xff : 0;
+ }
+ return;
+ }
+ for (int i = 0; i < clip_width; i ++) {
+ FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
+ if (bFlipX) {
+ src_x = src_width - src_x - 1;
+ }
+ src_x %= src_width;
+ FX_BYTE index = pSrcLine[src_x];
+ if (dest_Bpp == 1) {
+ dest_scan[i] = index;
+ } else {
+ int dest_pos = i * dest_Bpp;
+ FX_ARGB argb = m_pPalette[index];
+ dest_scan[dest_pos] = FXARGB_B(argb);
+ dest_scan[dest_pos + 1] = FXARGB_G(argb);
+ dest_scan[dest_pos + 2] = FXARGB_R(argb);
+ }
+ }
+ return;
+ } else {
+ int last_src_x = -1;
+ FX_ARGB last_argb;
+ FX_FLOAT orig_Not8Bpp = (FX_FLOAT)m_bpc * (FX_FLOAT)m_nComponents / 8.0f;
+ FX_FLOAT unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1);
+ for (int i = 0; i < clip_width; i ++) {
+ int dest_x = clip_left + i;
+ FX_DWORD src_x = (bFlipX ? (dest_width - dest_x - 1) : dest_x) * (FX_INT64)src_width / dest_width;
+ src_x %= src_width;
+ FX_LPCBYTE pSrcPixel = NULL;
+ if (m_bpc % 8 == 0) {
+ pSrcPixel = pSrcLine + src_x * orig_Bpp;
+ } else {
+ pSrcPixel = pSrcLine + (int)(src_x * orig_Not8Bpp);
+ }
+ FX_LPBYTE pDestPixel = dest_scan + i * dest_Bpp;
+ FX_ARGB argb;
+ if (src_x == last_src_x) {
+ argb = last_argb;
+ } else {
+ if (m_pColorSpace) {
+ FX_BYTE color[4];
+ if (!m_bDefaultDecode) {
+ for (int i = 0; i < orig_Bpp; i ++) {
+ int color_value = (int)((m_pCompData[i].m_DecodeMin + m_pCompData[i].m_DecodeStep * (FX_FLOAT)pSrcPixel[i]) * 255.0f + 0.5f);
+ temp[i] = color_value > 255 ? 255 : (color_value < 0 ? 0 : color_value);
+ }
+ m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
+ } else {
+ if (m_bpc < 8) {
+ int src_bit_pos = 0;
+ if (src_x % 2) {
+ src_bit_pos = 4;
+ }
+ int value = (1 << m_bpc) - 1;
+ for (FX_DWORD i = 0; i < m_nComponents; i ++) {
+ temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc);
+ src_bit_pos += m_bpc;
+ }
+ m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
+ } else {
+ m_pColorSpace->TranslateImageLine(color, pSrcPixel, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
+ }
+ }
+ argb = FXARGB_MAKE(0xff, color[2], color[1], color[0]);
+ } else {
+ argb = FXARGB_MAKE(0xff, pSrcPixel[2], pSrcPixel[1], pSrcPixel[0]);
+ }
+ if (m_bColorKey) {
+ int alpha = 0xff;
+ if (m_nComponents == 3 && m_bpc == 8) {
+ alpha = (pSrcPixel[0] < m_pCompData[0].m_ColorKeyMin ||
+ pSrcPixel[0] > m_pCompData[0].m_ColorKeyMax ||
+ pSrcPixel[1] < m_pCompData[1].m_ColorKeyMin ||
+ pSrcPixel[1] > m_pCompData[1].m_ColorKeyMax ||
+ pSrcPixel[2] < m_pCompData[2].m_ColorKeyMin ||
+ pSrcPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0;
+ }
+ argb &= 0xffffff;
+ argb |= alpha << 24;
+ }
+ last_src_x = src_x;
+ last_argb = argb;
+ }
+ if (dest_Bpp == 4) {
+ *(FX_DWORD*)pDestPixel = FXARGB_TODIB(argb);
+ } else {
+ *pDestPixel++ = FXARGB_B(argb);
+ *pDestPixel++ = FXARGB_G(argb);
+ *pDestPixel = FXARGB_R(argb);
+ }
+ }
+ }
+}
+void CPDF_DIBSource::SetDownSampleSize(int dest_width, int dest_height) const
+{
+ if (m_pDecoder) {
+ m_pDecoder->DownScale(dest_width, dest_height);
+ ((CPDF_DIBSource*)this)->m_Width = m_pDecoder->GetWidth();
+ ((CPDF_DIBSource*)this)->m_Height = m_pDecoder->GetHeight();
+ }
+}
+void CPDF_DIBSource::ClearImageData()
+{
+ if (m_pDecoder) {
+ m_pDecoder->ClearImageData();
+ }
+}
+CPDF_ProgressiveImageLoaderHandle::CPDF_ProgressiveImageLoaderHandle()
+{
+ m_pImageLoader = NULL;
+ m_pCache = NULL;
+ m_pImage = NULL;
+}
+CPDF_ProgressiveImageLoaderHandle::~CPDF_ProgressiveImageLoaderHandle()
+{
+ m_pImageLoader = NULL;
+ m_pCache = NULL;
+ m_pImage = NULL;
+}
+FX_BOOL CPDF_ProgressiveImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader, const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus, FX_INT32 nDownsampleWidth, FX_INT32 nDownsampleHeight)
+{
+ m_pImageLoader = pImageLoader;
+ m_pCache = pCache;
+ m_pImage = (CPDF_ImageObject*)pImage;
+ m_nDownsampleWidth = nDownsampleWidth;
+ m_nDownsampleHeight = nDownsampleHeight;
+ FX_BOOL ret;
+ if (pCache) {
+ ret = pCache->StartGetCachedBitmap(pImage->m_pImage->GetStream(), bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
+ if (ret == FALSE) {
+ m_pImageLoader->m_bCached = TRUE;
+ m_pImageLoader->m_pBitmap = pCache->m_pCurImageCache->DetachBitmap();
+ m_pImageLoader->m_pMask = pCache->m_pCurImageCache->DetachMask();
+ m_pImageLoader->m_MatteColor = pCache->m_pCurImageCache->m_MatteColor;
+ }
+ } else {
+ ret = pImage->m_pImage->StartLoadDIBSource(pRenderStatus->m_pFormResource, pRenderStatus->m_pPageResource, bStdCS, GroupFamily, bLoadMask);
+ if (ret == FALSE) {
+ m_pImageLoader->m_bCached = FALSE;
+ m_pImageLoader->m_pBitmap = m_pImage->m_pImage->DetachBitmap();
+ m_pImageLoader->m_pMask = m_pImage->m_pImage->DetachMask();
+ m_pImageLoader->m_MatteColor = m_pImage->m_pImage->m_MatteColor;
+ }
+ }
+ return ret;
+}
+FX_BOOL CPDF_ProgressiveImageLoaderHandle::Continue(IFX_Pause* pPause)
+{
+ FX_BOOL ret;
+ if (m_pCache) {
+ ret = m_pCache->Continue(pPause);
+ if (ret == FALSE) {
+ m_pImageLoader->m_bCached = TRUE;
+ m_pImageLoader->m_pBitmap = m_pCache->m_pCurImageCache->DetachBitmap();
+ m_pImageLoader->m_pMask = m_pCache->m_pCurImageCache->DetachMask();
+ m_pImageLoader->m_MatteColor = m_pCache->m_pCurImageCache->m_MatteColor;
+ }
+ } else {
+ ret = m_pImage->m_pImage->Continue(pPause);
+ if (ret == FALSE) {
+ m_pImageLoader->m_bCached = FALSE;
+ m_pImageLoader->m_pBitmap = m_pImage->m_pImage->DetachBitmap();
+ m_pImageLoader->m_pMask = m_pImage->m_pImage->DetachMask();
+ m_pImageLoader->m_MatteColor = m_pImage->m_pImage->m_MatteColor;
+ }
+ }
+ return ret;
+}
+FX_BOOL CPDF_ImageLoader::Load(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus)
+{
+ if (pImage == NULL) {
+ return FALSE;
+ }
+ if (pCache) {
+ pCache->GetCachedBitmap(pImage->m_pImage->GetStream(), m_pBitmap, m_pMask, m_MatteColor, bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
+ m_bCached = TRUE;
+ } else {
+ m_pBitmap = pImage->m_pImage->LoadDIBSource(&m_pMask, &m_MatteColor, bStdCS, GroupFamily, bLoadMask);
+ m_bCached = FALSE;
+ }
+ return FALSE;
+}
+FX_BOOL CPDF_ImageLoader::StartLoadImage(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_LPVOID& LoadHandle, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus, FX_INT32 nDownsampleWidth, FX_INT32 nDownsampleHeight)
+{
+ m_nDownsampleWidth = nDownsampleWidth;
+ m_nDownsampleHeight = nDownsampleHeight;
+ CPDF_ProgressiveImageLoaderHandle* pLoaderHandle = NULL;
+ pLoaderHandle = FX_NEW CPDF_ProgressiveImageLoaderHandle;
+ FX_BOOL ret = pLoaderHandle->Start(this, pImage, pCache, bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
+ LoadHandle = pLoaderHandle;
+ return ret;
+}
+FX_BOOL CPDF_ImageLoader::Continue(FX_LPVOID LoadHandle, IFX_Pause* pPause)
+{
+ return ((CPDF_ProgressiveImageLoaderHandle*)LoadHandle)->Continue(pPause);
+}
+CPDF_ImageLoader::~CPDF_ImageLoader()
+{
+ if (!m_bCached) {
+ if (m_pBitmap) {
+ delete m_pBitmap;
+ m_pBitmap = NULL;
+ }
+ if (m_pMask) {
+ delete m_pMask;
+ }
+ }
+}
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp new file mode 100644 index 0000000000..8cc30a72a1 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp @@ -0,0 +1,1093 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#include "../../../include/fxge/fx_ge.h"
+#include "../fpdf_page/pageint.h"
+#include "render_int.h"
+#define SHADING_STEPS 256
+static void _DrawAxialShading(CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Dictionary* pDict, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ CPDF_Array* pCoords = pDict->GetArray(FX_BSTRC("Coords"));
+ if (pCoords == NULL) {
+ return;
+ }
+ FX_FLOAT start_x = pCoords->GetNumber(0);
+ FX_FLOAT start_y = pCoords->GetNumber(1);
+ FX_FLOAT end_x = pCoords->GetNumber(2);
+ FX_FLOAT end_y = pCoords->GetNumber(3);
+ FX_FLOAT t_min = 0, t_max = 1.0f;
+ CPDF_Array* pArray = pDict->GetArray(FX_BSTRC("Domain"));
+ if (pArray) {
+ t_min = pArray->GetNumber(0);
+ t_max = pArray->GetNumber(1);
+ }
+ FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
+ pArray = pDict->GetArray(FX_BSTRC("Extend"));
+ if (pArray) {
+ bStartExtend = pArray->GetInteger(0);
+ bEndExtend = pArray->GetInteger(1);
+ }
+ int width = pBitmap->GetWidth();
+ int height = pBitmap->GetHeight();
+ FX_FLOAT x_span = end_x - start_x;
+ FX_FLOAT y_span = end_y - start_y;
+ FX_FLOAT axis_len_square = FXSYS_Mul(x_span, x_span) + FXSYS_Mul(y_span, y_span);
+ CFX_AffineMatrix matrix;
+ matrix.SetReverse(*pObject2Bitmap);
+ int total_results = 0;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ total_results += pFuncs[j]->CountOutputs();
+ }
+ }
+ if (pCS->CountComponents() > total_results) {
+ total_results = pCS->CountComponents();
+ }
+ CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
+ FX_FLOAT* pResults = result_array;
+ FXSYS_memset32(pResults, 0, total_results * sizeof(FX_FLOAT));
+ FX_DWORD rgb_array[SHADING_STEPS];
+ for (int i = 0; i < SHADING_STEPS; i ++) {
+ FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
+ int offset = 0;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ int nresults = 0;
+ if (pFuncs[j]->Call(&input, 1, pResults + offset, nresults)) {
+ offset += nresults;
+ }
+ }
+ }
+ FX_FLOAT R, G, B;
+ pCS->GetRGB(pResults, R, G, B);
+ rgb_array[i] = FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)));
+ }
+ int pitch = pBitmap->GetPitch();
+ int Bpp = pBitmap->GetBPP() / 8;
+ for (int row = 0; row < height; row ++) {
+ FX_DWORD* dib_buf = (FX_DWORD*)(pBitmap->GetBuffer() + row * pitch);
+ for (int column = 0; column < width; column ++) {
+ FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
+ matrix.Transform(x, y);
+ FX_FLOAT scale = FXSYS_Div(FXSYS_Mul(x - start_x, x_span) + FXSYS_Mul(y - start_y, y_span), axis_len_square);
+ int index = (FX_INT32)(scale * (SHADING_STEPS - 1));
+ if (index < 0) {
+ if (!bStartExtend) {
+ continue;
+ }
+ index = 0;
+ } else if (index >= SHADING_STEPS) {
+ if (!bEndExtend) {
+ continue;
+ }
+ index = SHADING_STEPS - 1;
+ }
+ dib_buf[column] = rgb_array[index];
+ }
+ }
+}
+static void _DrawRadialShading(CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Dictionary* pDict, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ CPDF_Array* pCoords = pDict->GetArray(FX_BSTRC("Coords"));
+ if (pCoords == NULL) {
+ return;
+ }
+ FX_FLOAT start_x = pCoords->GetNumber(0);
+ FX_FLOAT start_y = pCoords->GetNumber(1);
+ FX_FLOAT start_r = pCoords->GetNumber(2);
+ FX_FLOAT end_x = pCoords->GetNumber(3);
+ FX_FLOAT end_y = pCoords->GetNumber(4);
+ FX_FLOAT end_r = pCoords->GetNumber(5);
+ CFX_AffineMatrix matrix;
+ matrix.SetReverse(*pObject2Bitmap);
+ FX_FLOAT t_min = 0, t_max = 1.0f;
+ CPDF_Array* pArray = pDict->GetArray(FX_BSTRC("Domain"));
+ if (pArray) {
+ t_min = pArray->GetNumber(0);
+ t_max = pArray->GetNumber(1);
+ }
+ FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
+ pArray = pDict->GetArray(FX_BSTRC("Extend"));
+ if (pArray) {
+ bStartExtend = pArray->GetInteger(0);
+ bEndExtend = pArray->GetInteger(1);
+ }
+ int total_results = 0;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ total_results += pFuncs[j]->CountOutputs();
+ }
+ }
+ if (pCS->CountComponents() > total_results) {
+ total_results = pCS->CountComponents();
+ }
+ CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
+ FX_FLOAT* pResults = result_array;
+ FXSYS_memset32(pResults, 0, total_results * sizeof(FX_FLOAT));
+ FX_DWORD rgb_array[SHADING_STEPS];
+ for (int i = 0; i < SHADING_STEPS; i ++) {
+ FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
+ int offset = 0;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ int nresults;
+ if (pFuncs[j]->Call(&input, 1, pResults + offset, nresults)) {
+ offset += nresults;
+ }
+ }
+ }
+ FX_FLOAT R, G, B;
+ pCS->GetRGB(pResults, R, G, B);
+ rgb_array[i] = FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)));
+ }
+ FX_FLOAT a = FXSYS_Mul(start_x - end_x, start_x - end_x) +
+ FXSYS_Mul(start_y - end_y, start_y - end_y) - FXSYS_Mul(start_r - end_r, start_r - end_r);
+ int width = pBitmap->GetWidth();
+ int height = pBitmap->GetHeight();
+ int pitch = pBitmap->GetPitch();
+ int Bpp = pBitmap->GetBPP() / 8;
+ FX_BOOL bDecreasing = FALSE;
+ if (start_r > end_r) {
+ int length = (int)FXSYS_sqrt((FXSYS_Mul(start_x - end_x, start_x - end_x) + FXSYS_Mul(start_y - end_y, start_y - end_y)));
+ if (length < start_r - end_r) {
+ bDecreasing = TRUE;
+ }
+ }
+ for (int row = 0; row < height; row ++) {
+ FX_DWORD* dib_buf = (FX_DWORD*)(pBitmap->GetBuffer() + row * pitch);
+ for (int column = 0; column < width; column ++) {
+ FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
+ matrix.Transform(x, y);
+ FX_FLOAT b = -2 * (FXSYS_Mul(x - start_x, end_x - start_x) + FXSYS_Mul(y - start_y, end_y - start_y) +
+ FXSYS_Mul(start_r, end_r - start_r));
+ FX_FLOAT c = FXSYS_Mul(x - start_x, x - start_x) + FXSYS_Mul(y - start_y, y - start_y) -
+ FXSYS_Mul(start_r, start_r);
+ FX_FLOAT s;
+ if (a == 0) {
+ s = FXSYS_Div(-c, b);
+ } else {
+ FX_FLOAT b2_4ac = FXSYS_Mul(b, b) - 4 * FXSYS_Mul(a, c);
+ if (b2_4ac < 0) {
+ continue;
+ }
+ FX_FLOAT root = FXSYS_sqrt(b2_4ac);
+ FX_FLOAT s1, s2;
+ if (a > 0) {
+ s1 = FXSYS_Div(-b - root, 2 * a);
+ s2 = FXSYS_Div(-b + root, 2 * a);
+ } else {
+ s2 = FXSYS_Div(-b - root, 2 * a);
+ s1 = FXSYS_Div(-b + root, 2 * a);
+ }
+ if (bDecreasing) {
+ if (s1 >= 0 || bStartExtend) {
+ s = s1;
+ } else {
+ s = s2;
+ }
+ } else {
+ if (s2 <= 1.0f || bEndExtend) {
+ s = s2;
+ } else {
+ s = s1;
+ }
+ }
+ if ((start_r + s * (end_r - start_r)) < 0) {
+ continue;
+ }
+ }
+ int index = (FX_INT32)(s * (SHADING_STEPS - 1));
+ if (index < 0) {
+ if (!bStartExtend) {
+ continue;
+ }
+ index = 0;
+ }
+ if (index >= SHADING_STEPS) {
+ if (!bEndExtend) {
+ continue;
+ }
+ index = SHADING_STEPS - 1;
+ }
+ dib_buf[column] = rgb_array[index];
+ }
+ }
+}
+static void _DrawFuncShading(CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Dictionary* pDict, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ CPDF_Array* pDomain = pDict->GetArray(FX_BSTRC("Domain"));
+ FX_FLOAT xmin = 0, ymin = 0, xmax = 1.0f, ymax = 1.0f;
+ if (pDomain) {
+ xmin = pDomain->GetNumber(0);
+ xmax = pDomain->GetNumber(1);
+ ymin = pDomain->GetNumber(2);
+ ymax = pDomain->GetNumber(3);
+ }
+ CFX_AffineMatrix mtDomain2Target = pDict->GetMatrix(FX_BSTRC("Matrix"));
+ CFX_AffineMatrix matrix, reverse_matrix;
+ matrix.SetReverse(*pObject2Bitmap);
+ reverse_matrix.SetReverse(mtDomain2Target);
+ matrix.Concat(reverse_matrix);
+ int width = pBitmap->GetWidth();
+ int height = pBitmap->GetHeight();
+ int pitch = pBitmap->GetPitch();
+ int Bpp = pBitmap->GetBPP() / 8;
+ int total_results = 0;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ total_results += pFuncs[j]->CountOutputs();
+ }
+ }
+ if (pCS->CountComponents() > total_results) {
+ total_results = pCS->CountComponents();
+ }
+ CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
+ FX_FLOAT* pResults = result_array;
+ FXSYS_memset32(pResults, 0, total_results * sizeof(FX_FLOAT));
+ for (int row = 0; row < height; row ++) {
+ FX_DWORD* dib_buf = (FX_DWORD*)(pBitmap->GetBuffer() + row * pitch);
+ for (int column = 0; column < width; column ++) {
+ FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
+ matrix.Transform(x, y);
+ if (x < xmin || x > xmax || y < ymin || y > ymax) {
+ continue;
+ }
+ FX_FLOAT input[2];
+ int offset = 0;
+ input[0] = x;
+ input[1] = y;
+ for (int j = 0; j < nFuncs; j ++) {
+ if (pFuncs[j]) {
+ int nresults;
+ if (pFuncs[j]->Call(input, 2, pResults + offset, nresults)) {
+ offset += nresults;
+ }
+ }
+ }
+ FX_FLOAT R, G, B;
+ pCS->GetRGB(pResults, R, G, B);
+ dib_buf[column] = FXARGB_TODIB(FXARGB_MAKE(alpha, (FX_INT32)(R * 255), (FX_INT32)(G * 255), (FX_INT32)(B * 255)));
+ }
+ }
+}
+FX_BOOL _GetScanlineIntersect(int y, FX_FLOAT x1, FX_FLOAT y1, FX_FLOAT x2, FX_FLOAT y2, FX_FLOAT& x)
+{
+ if (y1 == y2) {
+ return FALSE;
+ }
+ if (y1 < y2) {
+ if (y < y1 || y > y2) {
+ return FALSE;
+ }
+ } else {
+ if (y < y2 || y > y1) {
+ return FALSE;
+ }
+ }
+ x = x1 + FXSYS_MulDiv(x2 - x1, y - y1, y2 - y1);
+ return TRUE;
+}
+static void _DrawGouraud(CFX_DIBitmap* pBitmap, int alpha, CPDF_MeshVertex triangle[3])
+{
+ FX_FLOAT min_y = triangle[0].y, max_y = triangle[0].y;
+ for (int i = 1; i < 3; i ++) {
+ if (min_y > triangle[i].y) {
+ min_y = triangle[i].y;
+ }
+ if (max_y < triangle[i].y) {
+ max_y = triangle[i].y;
+ }
+ }
+ if (min_y == max_y) {
+ return;
+ }
+ int min_yi = (int)FXSYS_floor(min_y), max_yi = (int)FXSYS_ceil(max_y);
+ if (min_yi < 0) {
+ min_yi = 0;
+ }
+ if (max_yi >= pBitmap->GetHeight()) {
+ max_yi = pBitmap->GetHeight() - 1;
+ }
+ for (int y = min_yi; y <= max_yi; y ++) {
+ int nIntersects = 0;
+ FX_FLOAT inter_x[3], r[3], g[3], b[3];
+ for (int i = 0; i < 3; i ++) {
+ CPDF_MeshVertex& vertex1 = triangle[i];
+ CPDF_MeshVertex& vertex2 = triangle[(i + 1) % 3];
+ FX_BOOL bIntersect = _GetScanlineIntersect(y, vertex1.x, vertex1.y,
+ vertex2.x, vertex2.y, inter_x[nIntersects]);
+ if (!bIntersect) {
+ continue;
+ }
+ r[nIntersects] = vertex1.r + FXSYS_MulDiv(vertex2.r - vertex1.r, y - vertex1.y, vertex2.y - vertex1.y);
+ g[nIntersects] = vertex1.g + FXSYS_MulDiv(vertex2.g - vertex1.g, y - vertex1.y, vertex2.y - vertex1.y);
+ b[nIntersects] = vertex1.b + FXSYS_MulDiv(vertex2.b - vertex1.b, y - vertex1.y, vertex2.y - vertex1.y);
+ nIntersects ++;
+ }
+ if (nIntersects != 2) {
+ continue;
+ }
+ int min_x, max_x, start_index, end_index;
+ if (inter_x[0] < inter_x[1]) {
+ min_x = (int)FXSYS_floor(inter_x[0]);
+ max_x = (int)FXSYS_ceil(inter_x[1]);
+ start_index = 0;
+ end_index = 1;
+ } else {
+ min_x = (int)FXSYS_floor(inter_x[1]);
+ max_x = (int)FXSYS_ceil(inter_x[0]);
+ start_index = 1;
+ end_index = 0;
+ }
+ int start_x = min_x, end_x = max_x;
+ if (start_x < 0) {
+ start_x = 0;
+ }
+ if (end_x > pBitmap->GetWidth()) {
+ end_x = pBitmap->GetWidth();
+ }
+ FX_LPBYTE dib_buf = pBitmap->GetBuffer() + y * pBitmap->GetPitch() + start_x * 4;
+ FX_FLOAT r_unit = (r[end_index] - r[start_index]) / (max_x - min_x);
+ FX_FLOAT g_unit = (g[end_index] - g[start_index]) / (max_x - min_x);
+ FX_FLOAT b_unit = (b[end_index] - b[start_index]) / (max_x - min_x);
+ FX_FLOAT R = r[start_index] + (start_x - min_x) * r_unit;
+ FX_FLOAT G = g[start_index] + (start_x - min_x) * g_unit;
+ FX_FLOAT B = b[start_index] + (start_x - min_x) * b_unit;
+ for (int x = start_x; x < end_x; x ++) {
+ R += r_unit;
+ G += g_unit;
+ B += b_unit;
+ FXARGB_SETDIB(dib_buf, FXARGB_MAKE(alpha, (FX_INT32)(R * 255), (FX_INT32)(G * 255), (FX_INT32)(B * 255)));
+ dib_buf += 4;
+ }
+ }
+}
+static void _DrawFreeGouraudShading(CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Stream* pShadingStream, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ if (pShadingStream->GetType() != PDFOBJ_STREAM) {
+ return;
+ }
+ CPDF_MeshStream stream;
+ if (!stream.Load(pShadingStream, pFuncs, nFuncs, pCS)) {
+ return;
+ }
+ CPDF_MeshVertex triangle[3];
+ while (!stream.m_BitStream.IsEOF()) {
+ CPDF_MeshVertex vertex;
+ FX_DWORD flag = stream.GetVertex(vertex, pObject2Bitmap);
+ if (flag == 0) {
+ triangle[0] = vertex;
+ for (int j = 1; j < 3; j ++) {
+ stream.GetVertex(triangle[j], pObject2Bitmap);
+ }
+ } else {
+ if (flag == 1) {
+ triangle[0] = triangle[1];
+ }
+ triangle[1] = triangle[2];
+ triangle[2] = vertex;
+ }
+ _DrawGouraud(pBitmap, alpha, triangle);
+ }
+}
+static void _DrawLatticeGouraudShading(CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Stream* pShadingStream, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ if (pShadingStream->GetType() != PDFOBJ_STREAM) {
+ return;
+ }
+ int row_verts = pShadingStream->GetDict()->GetInteger("VerticesPerRow");
+ if (row_verts < 2) {
+ return;
+ }
+ CPDF_MeshStream stream;
+ if (!stream.Load(pShadingStream, pFuncs, nFuncs, pCS)) {
+ return;
+ }
+ CPDF_MeshVertex* vertex = FX_Alloc(CPDF_MeshVertex, row_verts * 2);
+ if (!stream.GetVertexRow(vertex, row_verts, pObject2Bitmap)) {
+ FX_Free(vertex);
+ return;
+ }
+ int last_index = 0;
+ while (1) {
+ CPDF_MeshVertex* last_row = vertex + last_index * row_verts;
+ CPDF_MeshVertex* this_row = vertex + (1 - last_index) * row_verts;
+ if (!stream.GetVertexRow(this_row, row_verts, pObject2Bitmap)) {
+ FX_Free(vertex);
+ return;
+ }
+ CPDF_MeshVertex triangle[3];
+ for (int i = 1; i < row_verts; i ++) {
+ triangle[0] = last_row[i];
+ triangle[1] = this_row[i - 1];
+ triangle[2] = last_row[i - 1];
+ _DrawGouraud(pBitmap, alpha, triangle);
+ triangle[2] = this_row[i];
+ _DrawGouraud(pBitmap, alpha, triangle);
+ }
+ last_index = 1 - last_index;
+ }
+ FX_Free(vertex);
+}
+struct Coon_BezierCoeff {
+ float a, b, c, d;
+ void FromPoints(float p0, float p1, float p2, float p3)
+ {
+ a = -p0 + 3 * p1 - 3 * p2 + p3;
+ b = 3 * p0 - 6 * p1 + 3 * p2;
+ c = -3 * p0 + 3 * p1;
+ d = p0;
+ }
+ Coon_BezierCoeff first_half()
+ {
+ Coon_BezierCoeff result;
+ result.a = a / 8;
+ result.b = b / 4;
+ result.c = c / 2;
+ result.d = d;
+ return result;
+ }
+ Coon_BezierCoeff second_half()
+ {
+ Coon_BezierCoeff result;
+ result.a = a / 8;
+ result.b = 3 * a / 8 + b / 4;
+ result.c = 3 * a / 8 + b / 2 + c / 2;
+ result.d = a / 8 + b / 4 + c / 2 + d;
+ return result;
+ }
+ void GetPoints(float p[4])
+ {
+ p[0] = d;
+ p[1] = c / 3 + p[0];
+ p[2] = b / 3 - p[0] + 2 * p[1];
+ p[3] = a + p[0] - 3 * p[1] + 3 * p[2];
+ }
+ void GetPointsReverse(float p[4])
+ {
+ p[3] = d;
+ p[2] = c / 3 + p[3];
+ p[1] = b / 3 - p[3] + 2 * p[2];
+ p[0] = a + p[3] - 3 * p[2] + 3 * p[1];
+ }
+ void BezierInterpol(Coon_BezierCoeff& C1, Coon_BezierCoeff& C2, Coon_BezierCoeff& D1, Coon_BezierCoeff& D2)
+ {
+ a = (D1.a + D2.a) / 2;
+ b = (D1.b + D2.b) / 2;
+ c = (D1.c + D2.c) / 2 - (C1.a / 8 + C1.b / 4 + C1.c / 2) + (C2.a / 8 + C2.b / 4) + (-C1.d + D2.d) / 2 - (C2.a + C2.b) / 2;
+ d = C1.a / 8 + C1.b / 4 + C1.c / 2 + C1.d;
+ }
+ float Distance()
+ {
+ float dis = a + b + c;
+ return dis < 0 ? -dis : dis;
+ }
+};
+struct Coon_Bezier {
+ Coon_BezierCoeff x, y;
+ void FromPoints(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3)
+ {
+ x.FromPoints(x0, x1, x2, x3);
+ y.FromPoints(y0, y1, y2, y3);
+ }
+ Coon_Bezier first_half()
+ {
+ Coon_Bezier result;
+ result.x = x.first_half();
+ result.y = y.first_half();
+ return result;
+ }
+ Coon_Bezier second_half()
+ {
+ Coon_Bezier result;
+ result.x = x.second_half();
+ result.y = y.second_half();
+ return result;
+ }
+ void BezierInterpol(Coon_Bezier& C1, Coon_Bezier& C2, Coon_Bezier& D1, Coon_Bezier& D2)
+ {
+ x.BezierInterpol(C1.x, C2.x, D1.x, D2.x);
+ y.BezierInterpol(C1.y, C2.y, D1.y, D2.y);
+ }
+ void GetPoints(FX_PATHPOINT* pPoints)
+ {
+ float p[4];
+ int i;
+ x.GetPoints(p);
+ for (i = 0; i < 4; i ++) {
+ pPoints[i].m_PointX = p[i];
+ }
+ y.GetPoints(p);
+ for (i = 0; i < 4; i ++) {
+ pPoints[i].m_PointY = p[i];
+ }
+ }
+ void GetPointsReverse(FX_PATHPOINT* pPoints)
+ {
+ float p[4];
+ int i;
+ x.GetPointsReverse(p);
+ for (i = 0; i < 4; i ++) {
+ pPoints[i].m_PointX = p[i];
+ }
+ y.GetPointsReverse(p);
+ for (i = 0; i < 4; i ++) {
+ pPoints[i].m_PointY = p[i];
+ }
+ }
+ float Distance()
+ {
+ return x.Distance() + y.Distance();
+ }
+};
+static int _BiInterpol(int c0, int c1, int c2, int c3, int x, int y, int x_scale, int y_scale)
+{
+ int x1 = c0 + (c3 - c0) * x / x_scale;
+ int x2 = c1 + (c2 - c1) * x / x_scale;
+ return x1 + (x2 - x1) * y / y_scale;
+}
+struct Coon_Color {
+ Coon_Color()
+ {
+ FXSYS_memset32(comp, 0, sizeof(int) * 3);
+ }
+ int comp[3];
+ void BiInterpol(Coon_Color colors[4], int x, int y, int x_scale, int y_scale)
+ {
+ for (int i = 0; i < 3; i ++)
+ comp[i] = _BiInterpol(colors[0].comp[i], colors[1].comp[i], colors[2].comp[i], colors[3].comp[i],
+ x, y, x_scale, y_scale);
+ }
+ int Distance(Coon_Color& o)
+ {
+ int max, diff;
+ max = FXSYS_abs(comp[0] - o.comp[0]);
+ diff = FXSYS_abs(comp[1] - o.comp[1]);
+ if (max < diff) {
+ max = diff;
+ }
+ diff = FXSYS_abs(comp[2] - o.comp[2]);
+ if (max < diff) {
+ max = diff;
+ }
+ return max;
+ }
+};
+struct CPDF_PatchDrawer {
+ Coon_Color patch_colors[4];
+ int max_delta;
+ CFX_PathData path;
+ CFX_RenderDevice* pDevice;
+ int fill_mode;
+ int alpha;
+ void Draw(int x_scale, int y_scale, int left, int bottom, Coon_Bezier C1, Coon_Bezier C2, Coon_Bezier D1, Coon_Bezier D2)
+ {
+ FX_BOOL bSmall = C1.Distance() < 2 && C2.Distance() < 2 && D1.Distance() < 2 && D2.Distance() < 2;
+ Coon_Color div_colors[4];
+ int d_bottom, d_left, d_top, d_right;
+ div_colors[0].BiInterpol(patch_colors, left, bottom, x_scale, y_scale);
+ if (!bSmall) {
+ div_colors[1].BiInterpol(patch_colors, left, bottom + 1, x_scale, y_scale);
+ div_colors[2].BiInterpol(patch_colors, left + 1, bottom + 1, x_scale, y_scale);
+ div_colors[3].BiInterpol(patch_colors, left + 1, bottom, x_scale, y_scale);
+ d_bottom = div_colors[3].Distance(div_colors[0]);
+ d_left = div_colors[1].Distance(div_colors[0]);
+ d_top = div_colors[1].Distance(div_colors[2]);
+ d_right = div_colors[2].Distance(div_colors[3]);
+ }
+#define COONCOLOR_THRESHOLD 4
+ if (bSmall || (d_bottom < COONCOLOR_THRESHOLD && d_left < COONCOLOR_THRESHOLD &&
+ d_top < COONCOLOR_THRESHOLD && d_right < COONCOLOR_THRESHOLD)) {
+ FX_PATHPOINT* pPoints = path.GetPoints();
+ C1.GetPoints(pPoints);
+ D2.GetPoints(pPoints + 3);
+ C2.GetPointsReverse(pPoints + 6);
+ D1.GetPointsReverse(pPoints + 9);
+ int fillFlags = FXFILL_WINDING | FXFILL_FULLCOVER;
+ if (fill_mode & RENDER_NOPATHSMOOTH) {
+ fillFlags |= FXFILL_NOPATHSMOOTH;
+ }
+ pDevice->DrawPath(&path, NULL, NULL, FXARGB_MAKE(alpha, div_colors[0].comp[0], div_colors[0].comp[1], div_colors[0].comp[2]), 0, fillFlags);
+ } else {
+ if (d_bottom < COONCOLOR_THRESHOLD && d_top < COONCOLOR_THRESHOLD) {
+ Coon_Bezier m1;
+ m1.BezierInterpol(D1, D2, C1, C2);
+ y_scale *= 2;
+ bottom *= 2;
+ Draw(x_scale, y_scale, left, bottom, C1, m1, D1.first_half(), D2.first_half());
+ Draw(x_scale, y_scale, left, bottom + 1, m1, C2, D1.second_half(), D2.second_half());
+ } else if (d_left < COONCOLOR_THRESHOLD && d_right < COONCOLOR_THRESHOLD) {
+ Coon_Bezier m2;
+ m2.BezierInterpol(C1, C2, D1, D2);
+ x_scale *= 2;
+ left *= 2;
+ Draw(x_scale, y_scale, left, bottom, C1.first_half(), C2.first_half(), D1, m2);
+ Draw(x_scale, y_scale, left + 1, bottom, C1.second_half(), C2.second_half(), m2, D2);
+ } else {
+ Coon_Bezier m1, m2;
+ m1.BezierInterpol(D1, D2, C1, C2);
+ m2.BezierInterpol(C1, C2, D1, D2);
+ Coon_Bezier m1f = m1.first_half();
+ Coon_Bezier m1s = m1.second_half();
+ Coon_Bezier m2f = m2.first_half();
+ Coon_Bezier m2s = m2.second_half();
+ x_scale *= 2;
+ y_scale *= 2;
+ left *= 2;
+ bottom *= 2;
+ Draw(x_scale, y_scale, left, bottom, C1.first_half(), m1f, D1.first_half(), m2f);
+ Draw(x_scale, y_scale, left, bottom + 1, m1f, C2.first_half(), D1.second_half(), m2s);
+ Draw(x_scale, y_scale, left + 1, bottom, C1.second_half(), m1s, m2f, D2.first_half());
+ Draw(x_scale, y_scale, left + 1, bottom + 1, m1s, C2.second_half(), m2s, D2.second_half());
+ }
+ }
+ }
+};
+static void _DrawCoonPatchMeshes(FX_BOOL bTensor, CFX_DIBitmap* pBitmap, CFX_AffineMatrix* pObject2Bitmap,
+ CPDF_Stream* pShadingStream, CPDF_Function** pFuncs, int nFuncs,
+ CPDF_ColorSpace* pCS, int fill_mode, int alpha)
+{
+ ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
+ if (pShadingStream->GetType() != PDFOBJ_STREAM) {
+ return;
+ }
+ CFX_FxgeDevice device;
+ device.Attach(pBitmap);
+ CPDF_MeshStream stream;
+ if (!stream.Load(pShadingStream, pFuncs, nFuncs, pCS)) {
+ return;
+ }
+ CPDF_PatchDrawer patch;
+ patch.alpha = alpha;
+ patch.pDevice = &device;
+ patch.fill_mode = fill_mode;
+ patch.path.SetPointCount(13);
+ FX_PATHPOINT* pPoints = patch.path.GetPoints();
+ pPoints[0].m_Flag = FXPT_MOVETO;
+ for (int i = 1; i < 13; i ++) {
+ pPoints[i].m_Flag = FXPT_BEZIERTO;
+ }
+ CFX_FloatPoint coords[16];
+ int point_count = bTensor ? 16 : 12;
+ while (!stream.m_BitStream.IsEOF()) {
+ FX_DWORD flag = stream.GetFlag();
+ int iStartPoint = 0, iStartColor = 0, i;
+ if (flag) {
+ iStartPoint = 4;
+ iStartColor = 2;
+ CFX_FloatPoint tempCoords[4];
+ for (int i = 0; i < 4; i ++) {
+ tempCoords[i] = coords[(flag * 3 + i) % 12];
+ }
+ FXSYS_memcpy32(coords, tempCoords, sizeof(CFX_FloatPoint) * 4);
+ Coon_Color tempColors[2];
+ tempColors[0] = patch.patch_colors[flag];
+ tempColors[1] = patch.patch_colors[(flag + 1) % 4];
+ FXSYS_memcpy32(patch.patch_colors, tempColors, sizeof(Coon_Color) * 2);
+ }
+ for (i = iStartPoint; i < point_count; i ++) {
+ stream.GetCoords(coords[i].x, coords[i].y);
+ pObject2Bitmap->Transform(coords[i].x, coords[i].y);
+ }
+ for (i = iStartColor; i < 4; i ++) {
+ FX_FLOAT r, g, b;
+ stream.GetColor(r, g, b);
+ patch.patch_colors[i].comp[0] = (FX_INT32)(r * 255);
+ patch.patch_colors[i].comp[1] = (FX_INT32)(g * 255);
+ patch.patch_colors[i].comp[2] = (FX_INT32)(b * 255);
+ }
+ CFX_FloatRect bbox = CFX_FloatRect::GetBBox(coords, point_count);
+ if (bbox.right <= 0 || bbox.left >= (FX_FLOAT)pBitmap->GetWidth() || bbox.top <= 0 ||
+ bbox.bottom >= (FX_FLOAT)pBitmap->GetHeight()) {
+ continue;
+ }
+ Coon_Bezier C1, C2, D1, D2;
+ C1.FromPoints(coords[0].x, coords[0].y, coords[11].x, coords[11].y, coords[10].x, coords[10].y,
+ coords[9].x, coords[9].y);
+ C2.FromPoints(coords[3].x, coords[3].y, coords[4].x, coords[4].y, coords[5].x, coords[5].y,
+ coords[6].x, coords[6].y);
+ D1.FromPoints(coords[0].x, coords[0].y, coords[1].x, coords[1].y, coords[2].x, coords[2].y,
+ coords[3].x, coords[3].y);
+ D2.FromPoints(coords[9].x, coords[9].y, coords[8].x, coords[8].y, coords[7].x, coords[7].y,
+ coords[6].x, coords[6].y);
+ patch.Draw(1, 1, 0, 0, C1, C2, D1, D2);
+ }
+}
+void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern, CFX_AffineMatrix* pMatrix,
+ FX_RECT& clip_rect, int alpha, FX_BOOL bAlphaMode)
+{
+ int width = clip_rect.Width();
+ int height = clip_rect.Height();
+ CPDF_Function** pFuncs = pPattern->m_pFunctions;
+ int nFuncs = pPattern->m_nFuncs;
+ CPDF_Dictionary* pDict = pPattern->m_pShadingObj->GetDict();
+ CPDF_ColorSpace* pColorSpace = pPattern->m_pCS;
+ if (pColorSpace == NULL) {
+ return;
+ }
+ FX_ARGB background = 0;
+ if (!pPattern->m_bShadingObj && pPattern->m_pShadingObj->GetDict()->KeyExist(FX_BSTRC("Background"))) {
+ CPDF_Array* pBackColor = pPattern->m_pShadingObj->GetDict()->GetArray(FX_BSTRC("Background"));
+ if (pBackColor && pBackColor->GetCount() >= (FX_DWORD)pColorSpace->CountComponents()) {
+ CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents());
+ for (int i = 0; i < pColorSpace->CountComponents(); i ++) {
+ comps[i] = pBackColor->GetNumber(i);
+ }
+ FX_FLOAT R, G, B;
+ pColorSpace->GetRGB(comps, R, G, B);
+ background = ArgbEncode(255, (FX_INT32)(R * 255), (FX_INT32)(G * 255), (FX_INT32)(B * 255));
+ }
+ }
+ if (pDict->KeyExist(FX_BSTRC("BBox"))) {
+ CFX_FloatRect rect = pDict->GetRect(FX_BSTRC("BBox"));
+ rect.Transform(pMatrix);
+ clip_rect.Intersect(rect.GetOutterRect());
+ }
+ CPDF_DeviceBuffer buffer;
+ buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150);
+ CFX_AffineMatrix FinalMatrix = *pMatrix;
+ FinalMatrix.Concat(*buffer.GetMatrix());
+ CFX_DIBitmap* pBitmap = buffer.GetBitmap();
+ if (pBitmap->GetBuffer() == NULL) {
+ return;
+ }
+ pBitmap->Clear(background);
+ int fill_mode = m_Options.m_Flags;
+ switch (pPattern->m_ShadingType) {
+ case 1:
+ _DrawFuncShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha);
+ break;
+ case 2:
+ _DrawAxialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha);
+ break;
+ case 3:
+ _DrawRadialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha);
+ break;
+ case 4: {
+ _DrawFreeGouraudShading(pBitmap, &FinalMatrix, (CPDF_Stream*)pPattern->m_pShadingObj,
+ pFuncs, nFuncs, pColorSpace, alpha);
+ }
+ break;
+ case 5: {
+ _DrawLatticeGouraudShading(pBitmap, &FinalMatrix, (CPDF_Stream*)pPattern->m_pShadingObj,
+ pFuncs, nFuncs, pColorSpace, alpha);
+ }
+ break;
+ case 6:
+ case 7: {
+ _DrawCoonPatchMeshes(pPattern->m_ShadingType - 6, pBitmap, &FinalMatrix, (CPDF_Stream*)pPattern->m_pShadingObj,
+ pFuncs, nFuncs, pColorSpace, fill_mode, alpha);
+ }
+ break;
+ }
+ if (bAlphaMode) {
+ pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha);
+ }
+ if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
+ pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
+ }
+ buffer.OutputToDevice();
+}
+void CPDF_RenderStatus::DrawShadingPattern(CPDF_ShadingPattern* pattern, CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke)
+{
+ if (!pattern->Load()) {
+ return;
+ }
+ m_pDevice->SaveState();
+ if (pPageObj->m_Type == PDFPAGE_PATH) {
+ if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
+ m_pDevice->RestoreState();
+ return;
+ }
+ } else if (pPageObj->m_Type == PDFPAGE_IMAGE) {
+ FX_RECT rect = pPageObj->GetBBox(pObj2Device);
+ m_pDevice->SetClip_Rect(&rect);
+ } else {
+ return;
+ }
+ FX_RECT rect;
+ if (GetObjectClippedRect(pPageObj, pObj2Device, FALSE, rect)) {
+ m_pDevice->RestoreState();
+ return;
+ }
+ CFX_AffineMatrix matrix = pattern->m_Pattern2Form;
+ matrix.Concat(*pObj2Device);
+ GetScaledMatrix(matrix);
+ int alpha = pPageObj->m_GeneralState.GetAlpha(bStroke);
+ DrawShading(pattern, &matrix, rect, alpha, m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
+ m_pDevice->RestoreState();
+}
+FX_BOOL CPDF_RenderStatus::ProcessShading(CPDF_ShadingObject* pShadingObj, const CFX_AffineMatrix* pObj2Device)
+{
+ FX_RECT rect = pShadingObj->GetBBox(pObj2Device);
+ FX_RECT clip_box = m_pDevice->GetClipBox();
+ rect.Intersect(clip_box);
+ if (rect.IsEmpty()) {
+ return TRUE;
+ }
+ CFX_AffineMatrix matrix = pShadingObj->m_Matrix;
+ matrix.Concat(*pObj2Device);
+ DrawShading(pShadingObj->m_pShading, &matrix, rect, pShadingObj->m_GeneralState.GetAlpha(FALSE),
+ m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
+#ifdef _FPDFAPI_MINI_
+ if (m_DitherBits) {
+ DitherObjectArea(pShadingObj, pObj2Device);
+ }
+#endif
+ return TRUE;
+}
+static CFX_DIBitmap* DrawPatternBitmap(CPDF_Document* pDoc, CPDF_PageRenderCache* pCache,
+ CPDF_TilingPattern* pPattern, const CFX_AffineMatrix* pObject2Device,
+ int width, int height, int flags)
+{
+ CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
+ if (!pBitmap->Create(width, height, pPattern->m_bColored ? FXDIB_Argb : FXDIB_8bppMask)) {
+ delete pBitmap;
+ return NULL;
+ }
+ CFX_FxgeDevice bitmap_device;
+ bitmap_device.Attach(pBitmap);
+ pBitmap->Clear(0);
+ CFX_FloatRect cell_bbox = pPattern->m_BBox;
+ pPattern->m_Pattern2Form.TransformRect(cell_bbox);
+ pObject2Device->TransformRect(cell_bbox);
+ CFX_FloatRect bitmap_rect(0.0f, 0.0f, (FX_FLOAT)width, (FX_FLOAT)height);
+ CFX_AffineMatrix mtAdjust;
+ mtAdjust.MatchRect(bitmap_rect, cell_bbox);
+ CFX_AffineMatrix mtPattern2Bitmap = *pObject2Device;
+ mtPattern2Bitmap.Concat(mtAdjust);
+ CPDF_RenderOptions options;
+ if (!pPattern->m_bColored) {
+ options.m_ColorMode = RENDER_COLOR_ALPHA;
+ }
+ flags |= RENDER_FORCE_HALFTONE;
+ options.m_Flags = flags;
+ CPDF_RenderContext context;
+ context.Create(pDoc, pCache, NULL);
+ context.DrawObjectList(&bitmap_device, pPattern->m_pForm, &mtPattern2Bitmap, &options);
+ return pBitmap;
+}
+void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern, CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke)
+{
+ if (!pPattern->Load()) {
+ return;
+ }
+ m_pDevice->SaveState();
+ if (pPageObj->m_Type == PDFPAGE_PATH) {
+ if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
+ m_pDevice->RestoreState();
+ return;
+ }
+ } else if (pPageObj->m_Type == PDFPAGE_IMAGE) {
+ FX_RECT rect = pPageObj->GetBBox(pObj2Device);
+ m_pDevice->SetClip_Rect(&rect);
+ } else {
+ return;
+ }
+ FX_RECT clip_box = m_pDevice->GetClipBox();
+ if (clip_box.IsEmpty()) {
+ m_pDevice->RestoreState();
+ return;
+ }
+ CFX_Matrix dCTM = m_pDevice->GetCTM();
+ FX_FLOAT sa = FXSYS_fabs(dCTM.a);
+ FX_FLOAT sd = FXSYS_fabs(dCTM.d);
+ clip_box.right = clip_box.left + (FX_INT32)FXSYS_ceil(clip_box.Width() * sa);
+ clip_box.bottom = clip_box.top + (FX_INT32)FXSYS_ceil(clip_box.Height() * sd);
+ CFX_AffineMatrix mtPattern2Device = pPattern->m_Pattern2Form;
+ mtPattern2Device.Concat(*pObj2Device);
+ GetScaledMatrix(mtPattern2Device);
+ FX_BOOL bAligned = FALSE;
+ if (pPattern->m_BBox.left == 0 && pPattern->m_BBox.bottom == 0 &&
+ pPattern->m_BBox.right == pPattern->m_XStep && pPattern->m_BBox.top == pPattern->m_YStep &&
+ (mtPattern2Device.IsScaled() || mtPattern2Device.Is90Rotated())) {
+ bAligned = TRUE;
+ }
+ CFX_FloatRect cell_bbox = pPattern->m_BBox;
+ mtPattern2Device.TransformRect(cell_bbox);
+ int width = (int)FXSYS_ceil(cell_bbox.Width());
+ int height = (int)FXSYS_ceil(cell_bbox.Height());
+ if (width == 0) {
+ width = 1;
+ }
+ if (height == 0) {
+ height = 1;
+ }
+ int min_col, max_col, min_row, max_row;
+ CFX_AffineMatrix mtDevice2Pattern;
+ mtDevice2Pattern.SetReverse(mtPattern2Device);
+ CFX_FloatRect clip_box_p(clip_box);
+ clip_box_p.Transform(&mtDevice2Pattern);
+ min_col = (int)FXSYS_ceil(FXSYS_Div(clip_box_p.left - pPattern->m_BBox.right, pPattern->m_XStep));
+ max_col = (int)FXSYS_floor(FXSYS_Div(clip_box_p.right - pPattern->m_BBox.left, pPattern->m_XStep));
+ min_row = (int)FXSYS_ceil(FXSYS_Div(clip_box_p.bottom - pPattern->m_BBox.top, pPattern->m_YStep));
+ max_row = (int)FXSYS_floor(FXSYS_Div(clip_box_p.top - pPattern->m_BBox.bottom, pPattern->m_YStep));
+ if (width > clip_box.Width() || height > clip_box.Height() || width * height > clip_box.Width() * clip_box.Height()) {
+ CPDF_GraphicStates* pStates = NULL;
+ if (!pPattern->m_bColored) {
+ pStates = CloneObjStates(pPageObj, bStroke);
+ }
+ CPDF_Dictionary* pFormResource = NULL;
+ if (pPattern->m_pForm->m_pFormDict) {
+ pFormResource = pPattern->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
+ }
+ for (int col = min_col; col <= max_col; col ++)
+ for (int row = min_row; row <= max_row; row ++) {
+ FX_FLOAT orig_x, orig_y;
+ orig_x = col * pPattern->m_XStep;
+ orig_y = row * pPattern->m_YStep;
+ mtPattern2Device.Transform(orig_x, orig_y);
+ CFX_AffineMatrix matrix = *pObj2Device;
+ matrix.Translate(orig_x - mtPattern2Device.e, orig_y - mtPattern2Device.f);
+ m_pDevice->SaveState();
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &m_Options,
+ pPattern->m_pForm->m_Transparency, m_bDropObjects, pFormResource);
+ status.RenderObjectList(pPattern->m_pForm, &matrix);
+ m_pDevice->RestoreState();
+ }
+ m_pDevice->RestoreState();
+ if (pStates) {
+ delete pStates;
+ }
+ return;
+ }
+ if (bAligned) {
+ int orig_x = FXSYS_round(mtPattern2Device.e);
+ int orig_y = FXSYS_round(mtPattern2Device.f);
+ min_col = (clip_box.left - orig_x) / width;
+ if (clip_box.left < orig_x) {
+ min_col --;
+ }
+ max_col = (clip_box.right - orig_x) / width;
+ if (clip_box.right <= orig_x) {
+ max_col --;
+ }
+ min_row = (clip_box.top - orig_y) / height;
+ if (clip_box.top < orig_y) {
+ min_row --;
+ }
+ max_row = (clip_box.bottom - orig_y) / height;
+ if (clip_box.bottom <= orig_y) {
+ max_row --;
+ }
+ }
+ FX_FLOAT left_offset = cell_bbox.left - mtPattern2Device.e;
+ FX_FLOAT top_offset = cell_bbox.bottom - mtPattern2Device.f;
+ CFX_DIBitmap* pPatternBitmap = NULL;
+ if (width * height < 16) {
+ CFX_DIBitmap* pEnlargedBitmap = DrawPatternBitmap(m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern, pObj2Device, 8, 8, m_Options.m_Flags);
+ pPatternBitmap = pEnlargedBitmap->StretchTo(width, height);
+ delete pEnlargedBitmap;
+ } else {
+ pPatternBitmap = DrawPatternBitmap(m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern, pObj2Device, width, height, m_Options.m_Flags);
+ }
+ if (pPatternBitmap == NULL) {
+ m_pDevice->RestoreState();
+ return;
+ }
+ if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
+ pPatternBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
+ }
+ FX_ARGB fill_argb = GetFillArgb(pPageObj);
+ int clip_width = clip_box.right - clip_box.left;
+ int clip_height = clip_box.bottom - clip_box.top;
+ CFX_DIBitmap screen;
+ if (!screen.Create(clip_width, clip_height, FXDIB_Argb)) {
+ return;
+ }
+ screen.Clear(0);
+ FX_DWORD* src_buf = (FX_DWORD*)pPatternBitmap->GetBuffer();
+ for (int col = min_col; col <= max_col; col ++) {
+ for (int row = min_row; row <= max_row; row ++) {
+ int start_x, start_y;
+ if (bAligned) {
+ start_x = FXSYS_round(mtPattern2Device.e) + col * width - clip_box.left;
+ start_y = FXSYS_round(mtPattern2Device.f) + row * height - clip_box.top;
+ } else {
+ FX_FLOAT orig_x = col * pPattern->m_XStep;
+ FX_FLOAT orig_y = row * pPattern->m_YStep;
+ mtPattern2Device.Transform(orig_x, orig_y);
+ start_x = FXSYS_round(orig_x + left_offset) - clip_box.left;
+ start_y = FXSYS_round(orig_y + top_offset) - clip_box.top;
+ }
+ if (width == 1 && height == 1) {
+ if (start_x < 0 || start_x >= clip_box.Width() || start_y < 0 || start_y >= clip_box.Height()) {
+ continue;
+ }
+ FX_DWORD* dest_buf = (FX_DWORD*)(screen.GetBuffer() + screen.GetPitch() * start_y + start_x * 4);
+ if (pPattern->m_bColored) {
+ *dest_buf = *src_buf;
+ } else {
+ *dest_buf = (*(FX_LPBYTE)src_buf << 24) | (fill_argb & 0xffffff);
+ }
+ } else {
+ if (pPattern->m_bColored) {
+ screen.CompositeBitmap(start_x, start_y, width, height, pPatternBitmap, 0, 0);
+ } else {
+ screen.CompositeMask(start_x, start_y, width, height, pPatternBitmap, fill_argb, 0, 0);
+ }
+ }
+ }
+ }
+ CompositeDIBitmap(&screen, clip_box.left, clip_box.top, 0, 255, FXDIB_BLEND_NORMAL, FALSE);
+ m_pDevice->RestoreState();
+ delete pPatternBitmap;
+}
+void CPDF_RenderStatus::DrawPathWithPattern(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, CPDF_Color* pColor, FX_BOOL bStroke)
+{
+ CPDF_Pattern* pattern = pColor->GetPattern();
+ if (pattern == NULL) {
+ return;
+ }
+ if(pattern->m_PatternType == PATTERN_TILING) {
+ DrawTilingPattern((CPDF_TilingPattern*)pattern, pPathObj, pObj2Device, bStroke);
+ } else {
+ DrawShadingPattern((CPDF_ShadingPattern*)pattern, pPathObj, pObj2Device, bStroke);
+ }
+}
+void CPDF_RenderStatus::ProcessPathPattern(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, int& filltype, FX_BOOL& bStroke)
+{
+ FX_BOOL bPattern = FALSE;
+ if(filltype) {
+ CPDF_Color& FillColor = *pPathObj->m_ColorState.GetFillColor();
+ if(FillColor.m_pCS && FillColor.m_pCS->GetFamily() == PDFCS_PATTERN) {
+ DrawPathWithPattern(pPathObj, pObj2Device, &FillColor, FALSE);
+ filltype = 0;
+ bPattern = TRUE;
+ }
+ }
+ if(bStroke) {
+ CPDF_Color& StrokeColor = *pPathObj->m_ColorState.GetStrokeColor();
+ if(StrokeColor.m_pCS && StrokeColor.m_pCS->GetFamily() == PDFCS_PATTERN) {
+ DrawPathWithPattern(pPathObj, pObj2Device, &StrokeColor, TRUE);
+ bStroke = FALSE;
+ bPattern = TRUE;
+ }
+ }
+#ifdef _FPDFAPI_MINI_
+ if (bPattern && m_DitherBits) {
+ DitherObjectArea(pPathObj, pObj2Device);
+ }
+#endif
+}
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp new file mode 100644 index 0000000000..91ff982935 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp @@ -0,0 +1,760 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fxge/fx_ge.h"
+#include "../../../include/fpdfapi/fpdf_render.h"
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#include "../fpdf_page/pageint.h"
+#include "render_int.h"
+extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix);
+CPDF_Type3Cache::~CPDF_Type3Cache()
+{
+ FX_POSITION pos = m_SizeMap.GetStartPosition();
+ CFX_ByteString Key;
+ CPDF_Type3Glyphs* pSizeCache = NULL;
+ while(pos) {
+ pSizeCache = (CPDF_Type3Glyphs*)m_SizeMap.GetNextValue(pos);
+ delete pSizeCache;
+ }
+ m_SizeMap.RemoveAll();
+}
+CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY)
+{
+ _CPDF_UniqueKeyGen keygen;
+ keygen.Generate(4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000),
+ FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000));
+ CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen);
+ CPDF_Type3Glyphs* pSizeCache = NULL;
+ if(!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) {
+ pSizeCache = FX_NEW CPDF_Type3Glyphs;
+ m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache);
+ }
+ CFX_GlyphBitmap* pGlyphBitmap;
+ if(pSizeCache->m_GlyphMap.Lookup((FX_LPVOID)(FX_UINTPTR)charcode, (void*&)pGlyphBitmap)) {
+ return pGlyphBitmap;
+ }
+ pGlyphBitmap = RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY);
+ pSizeCache->m_GlyphMap.SetAt((FX_LPVOID)(FX_UINTPTR)charcode, pGlyphBitmap);
+ return pGlyphBitmap;
+}
+CPDF_Type3Glyphs::~CPDF_Type3Glyphs()
+{
+ FX_POSITION pos = m_GlyphMap.GetStartPosition();
+ FX_LPVOID Key;
+ CFX_GlyphBitmap* pGlyphBitmap;
+ while(pos) {
+ m_GlyphMap.GetNextAssoc(pos, Key, (void*&)pGlyphBitmap);
+ delete pGlyphBitmap;
+ }
+}
+static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[])
+{
+ FX_FLOAT min_distance = 1000000.0f * 1.0f;
+ int closest_pos = -1;
+ for (int i = 0; i < count; i ++) {
+ FX_FLOAT distance = (FX_FLOAT)FXSYS_fabs(pos - (FX_FLOAT)blues[i]);
+ if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) {
+ min_distance = distance;
+ closest_pos = i;
+ }
+ }
+ if (closest_pos >= 0) {
+ return blues[closest_pos];
+ }
+ int new_pos = FXSYS_round(pos);
+ if (count == TYPE3_MAX_BLUES) {
+ return new_pos;
+ }
+ blues[count++] = new_pos;
+ return new_pos;
+}
+void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top, FX_FLOAT bottom, int& top_line, int& bottom_line)
+{
+ top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue);
+ bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue);
+}
+static FX_BOOL _IsScanLine1bpp(FX_LPBYTE pBuf, int width)
+{
+ int size = width / 8;
+ for (int i = 0; i < size; i ++)
+ if (pBuf[i]) {
+ return TRUE;
+ }
+ if (width % 8)
+ if (pBuf[width / 8] & (0xff << (8 - width % 8))) {
+ return TRUE;
+ }
+ return FALSE;
+}
+static FX_BOOL _IsScanLine8bpp(FX_LPBYTE pBuf, int width)
+{
+ for (int i = 0; i < width; i ++)
+ if (pBuf[i] > 0x40) {
+ return TRUE;
+ }
+ return FALSE;
+}
+static int _DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst)
+{
+ int height = pBitmap->GetHeight(), pitch = pBitmap->GetPitch(), width = pBitmap->GetWidth();
+ int bpp = pBitmap->GetBPP();
+ if (bpp > 8) {
+ width *= bpp / 8;
+ }
+ FX_LPBYTE pBuf = pBitmap->GetBuffer();
+ int line = bFirst ? 0 : height - 1;
+ int line_step = bFirst ? 1 : -1;
+ int line_end = bFirst ? height : -1;
+ while (line != line_end) {
+ if (bpp == 1) {
+ if (_IsScanLine1bpp(pBuf + line * pitch, width)) {
+ return line;
+ }
+ } else {
+ if (_IsScanLine8bpp(pBuf + line * pitch, width)) {
+ return line;
+ }
+ }
+ line += line_step;
+ }
+ return -1;
+}
+CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize, FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY)
+{
+ CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode);
+ if (pChar == NULL || pChar->m_pBitmap == NULL) {
+ return NULL;
+ }
+ CFX_DIBitmap* pBitmap = pChar->m_pBitmap;
+ CFX_AffineMatrix image_matrix, text_matrix;
+ image_matrix = pChar->m_ImageMatrix;
+ text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0);
+ image_matrix.Concat(text_matrix);
+ CFX_DIBitmap* pResBitmap = NULL;
+ int left, top;
+ if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 && FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) {
+ int top_line, bottom_line;
+ top_line = _DetectFirstLastScan(pBitmap, TRUE);
+ bottom_line = _DetectFirstLastScan(pBitmap, FALSE);
+ if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) {
+ FX_FLOAT top_y = image_matrix.d + image_matrix.f;
+ FX_FLOAT bottom_y = image_matrix.f;
+ FX_BOOL bFlipped = top_y > bottom_y;
+ if (bFlipped) {
+ FX_FLOAT temp = top_y;
+ top_y = bottom_y;
+ bottom_y = temp;
+ }
+ pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line);
+ pResBitmap = pBitmap->StretchTo((int)(FXSYS_round(image_matrix.a) * retinaScaleX), (int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) * retinaScaleY));
+ top = top_line;
+ if (image_matrix.a < 0) {
+ image_matrix.Scale(retinaScaleX, retinaScaleY);
+ left = FXSYS_round(image_matrix.e + image_matrix.a);
+ } else {
+ left = FXSYS_round(image_matrix.e);
+ }
+ } else {
+ }
+ }
+ if (pResBitmap == NULL) {
+ image_matrix.Scale(retinaScaleX, retinaScaleY);
+ pResBitmap = pBitmap->TransformTo(&image_matrix, left, top);
+ }
+ if (pResBitmap == NULL) {
+ return NULL;
+ }
+ CFX_GlyphBitmap* pGlyph = FX_NEW CFX_GlyphBitmap;
+ pGlyph->m_Left = left;
+ pGlyph->m_Top = -top;
+ pGlyph->m_Bitmap.TakeOver(pResBitmap);
+ delete pResBitmap;
+ return pGlyph;
+}
+void _CPDF_UniqueKeyGen::Generate(int count, ...)
+{
+ va_list argList;
+ va_start(argList, count);
+ for (int i = 0; i < count; i ++) {
+ int p = va_arg(argList, int);
+ ((FX_DWORD*)m_Key)[i] = p;
+ }
+ va_end(argList);
+ m_KeyLen = count * sizeof(FX_DWORD);
+}
+FX_BOOL CPDF_RenderStatus::ProcessText(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device, CFX_PathData* pClippingPath)
+{
+ if(textobj->m_nChars == 0) {
+ return TRUE;
+ }
+ int text_render_mode = textobj->m_TextState.GetObject()->m_TextMode;
+ if (text_render_mode == 3) {
+ return TRUE;
+ }
+ CPDF_Font* pFont = textobj->m_TextState.GetFont();
+ if (pFont->GetFontType() == PDFFONT_TYPE3) {
+ return ProcessType3Text(textobj, pObj2Device);
+ }
+ FX_BOOL bFill = FALSE, bStroke = FALSE, bClip = FALSE;
+ if (pClippingPath) {
+ bClip = TRUE;
+ } else {
+ switch (text_render_mode) {
+ case 0:
+ case 4:
+ bFill = TRUE;
+ break;
+ case 1:
+ case 5:
+ if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) {
+ bFill = TRUE;
+ } else {
+ bStroke = TRUE;
+ }
+ break;
+ case 2:
+ case 6:
+ if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) {
+ bFill = TRUE;
+ } else {
+ bFill = bStroke = TRUE;
+ }
+ break;
+ case 3:
+ case 7:
+ return TRUE;
+ default:
+ bFill = TRUE;
+ }
+ }
+ FX_ARGB stroke_argb = 0, fill_argb = 0;
+ FX_BOOL bPattern = FALSE;
+ if (bStroke) {
+ if (textobj->m_ColorState.GetStrokeColor()->IsPattern()) {
+ bPattern = TRUE;
+ } else {
+ stroke_argb = GetStrokeArgb(textobj);
+ }
+ }
+ if (bFill) {
+ if (textobj->m_ColorState.GetFillColor()->IsPattern()) {
+ bPattern = TRUE;
+ } else {
+ fill_argb = GetFillArgb(textobj);
+ }
+ }
+ CFX_AffineMatrix text_matrix;
+ textobj->GetTextMatrix(&text_matrix);
+ if(IsAvailableMatrix(text_matrix) == FALSE) {
+ return TRUE;
+ }
+ FX_FLOAT font_size = textobj->m_TextState.GetFontSize();
+ if (bPattern) {
+ DrawTextPathWithPattern(textobj, pObj2Device, pFont, font_size, &text_matrix, bFill, bStroke);
+ return TRUE;
+ }
+#if defined(_FPDFAPI_MINI_)
+ if (bFill) {
+ bStroke = FALSE;
+ }
+ if (bStroke) {
+ if (font_size * text_matrix.GetXUnit() * pObj2Device->GetXUnit() < 6) {
+ bStroke = FALSE;
+ }
+ }
+#endif
+ if (bClip || bStroke) {
+ const CFX_AffineMatrix* pDeviceMatrix = pObj2Device;
+ CFX_AffineMatrix device_matrix;
+ if (bStroke) {
+ const FX_FLOAT* pCTM = textobj->m_TextState.GetObject()->m_CTM;
+ if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) {
+ CFX_AffineMatrix ctm(pCTM[0], pCTM[1], pCTM[2], pCTM[3], 0, 0);
+ text_matrix.ConcatInverse(ctm);
+ device_matrix.Copy(ctm);
+ device_matrix.Concat(*pObj2Device);
+ pDeviceMatrix = &device_matrix;
+ }
+ }
+ int flag = 0;
+ if (bStroke && bFill) {
+ flag |= FX_FILL_STROKE;
+ flag |= FX_STROKE_TEXT_MODE;
+ }
+#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
+ const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)textobj)->m_GeneralState;
+ if (pGeneralData && pGeneralData->m_StrokeAdjust) {
+ flag |= FX_STROKE_ADJUST;
+ }
+#endif
+ if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) {
+ flag |= FXFILL_NOPATHSMOOTH;
+ }
+ return CPDF_TextRenderer::DrawTextPath(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size,
+ &text_matrix, pDeviceMatrix, textobj->m_GraphState, fill_argb, stroke_argb, pClippingPath, flag);
+ }
+ text_matrix.Concat(*pObj2Device);
+ return CPDF_TextRenderer::DrawNormalText(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size,
+ &text_matrix, fill_argb, &m_Options);
+}
+CPDF_Type3Cache* CPDF_RenderStatus::GetCachedType3(CPDF_Type3Font* pFont)
+{
+ if (pFont->m_pDocument == NULL) {
+ return NULL;
+ }
+ pFont->m_pDocument->GetPageData()->GetFont(pFont->GetFontDict(), FALSE);
+ return pFont->m_pDocument->GetRenderData()->GetCachedType3(pFont);
+}
+static void ReleaseCachedType3(CPDF_Type3Font* pFont)
+{
+ if (pFont->m_pDocument == NULL) {
+ return;
+ }
+ pFont->m_pDocument->GetRenderData()->ReleaseCachedType3(pFont);
+ pFont->m_pDocument->GetPageData()->ReleaseFont(pFont->GetFontDict());
+}
+FX_BOOL CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext)
+{
+ if (m_pBitmap != NULL || m_pForm == NULL) {
+ return TRUE;
+ }
+ if (m_pForm->CountObjects() == 1 && !m_bColored) {
+ CPDF_PageObject *pPageObj = m_pForm->GetObjectAt(m_pForm->GetFirstObjectPosition());
+ if (pPageObj->m_Type == PDFPAGE_IMAGE) {
+ CPDF_ImageObject* pImage = (CPDF_ImageObject*)pPageObj;
+ m_ImageMatrix = pImage->m_Matrix;
+ const CFX_DIBSource* pSource = pImage->m_pImage->LoadDIBSource();
+ if (pSource) {
+ m_pBitmap = pSource->Clone();
+ delete pSource;
+ }
+ delete m_pForm;
+ m_pForm = NULL;
+ return TRUE;
+ }
+ if (pPageObj->m_Type == PDFPAGE_INLINES) {
+ CPDF_InlineImages *pInlines = (CPDF_InlineImages *)pPageObj;
+ if (pInlines->m_pStream) {
+ m_ImageMatrix = pInlines->m_Matrices[0];
+ CPDF_DIBSource dibsrc;
+ if (!dibsrc.Load(pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) {
+ return FALSE;
+ }
+ m_pBitmap = dibsrc.Clone();
+ delete m_pForm;
+ m_pForm = NULL;
+ return TRUE;
+ }
+ }
+ }
+ return FALSE;
+}
+class CPDF_RefType3Cache
+{
+public:
+ CPDF_RefType3Cache(CPDF_Type3Font* pType3Font)
+ {
+ m_dwCount = 0;
+ m_pType3Font = pType3Font;
+ }
+ ~CPDF_RefType3Cache()
+ {
+ while(m_dwCount--) {
+ ReleaseCachedType3(m_pType3Font);
+ }
+ }
+ FX_DWORD m_dwCount;
+ CPDF_Type3Font* m_pType3Font;
+};
+FX_BOOL CPDF_RenderStatus::ProcessType3Text(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device)
+{
+ CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->GetType3Font();
+ for (int j = 0; j < m_Type3FontCache.GetSize(); j++)
+ if ((CPDF_Type3Font*)m_Type3FontCache.GetAt(j) == pType3Font) {
+ return TRUE;
+ }
+ CFX_Matrix dCTM = m_pDevice->GetCTM();
+ FX_FLOAT sa = FXSYS_fabs(dCTM.a);
+ FX_FLOAT sd = FXSYS_fabs(dCTM.d);
+ CFX_AffineMatrix text_matrix;
+ textobj->GetTextMatrix(&text_matrix);
+ CFX_AffineMatrix char_matrix = pType3Font->GetFontMatrix();
+ FX_FLOAT font_size = textobj->m_TextState.GetFontSize();
+ char_matrix.Scale(font_size, font_size);
+ FX_ARGB fill_argb = GetFillArgb(textobj, TRUE);
+ int fill_alpha = FXARGB_A(fill_argb);
+ int device_class = m_pDevice->GetDeviceClass();
+ FXTEXT_GLYPHPOS* pGlyphAndPos = NULL;
+ if (device_class == FXDC_DISPLAY) {
+ pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, textobj->m_nChars);
+ FXSYS_memset32(pGlyphAndPos, 0, sizeof(FXTEXT_GLYPHPOS) * textobj->m_nChars);
+ } else if (fill_alpha < 255) {
+ return FALSE;
+ }
+ CPDF_RefType3Cache refTypeCache(pType3Font);
+ FX_DWORD *pChars = textobj->m_pCharCodes;
+ if (textobj->m_nChars == 1) {
+ pChars = (FX_DWORD*)(&textobj->m_pCharCodes);
+ }
+ for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
+ FX_DWORD charcode = pChars[iChar];
+ if (charcode == (FX_DWORD) - 1) {
+ continue;
+ }
+ CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode);
+ if (pType3Char == NULL) {
+ continue;
+ }
+ CFX_AffineMatrix matrix = char_matrix;
+ matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0;
+ matrix.Concat(text_matrix);
+ matrix.Concat(*pObj2Device);
+ if (!pType3Char->LoadBitmap(m_pContext)) {
+ if (pGlyphAndPos) {
+ for (int i = 0; i < iChar; i ++) {
+ FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[i];
+ if (glyph.m_pGlyph == NULL) {
+ continue;
+ }
+ m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap,
+ glyph.m_OriginX + glyph.m_pGlyph->m_Left,
+ glyph.m_OriginY - glyph.m_pGlyph->m_Top, fill_argb);
+ }
+ FX_Free(pGlyphAndPos);
+ pGlyphAndPos = NULL;
+ }
+ CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE);
+ CPDF_RenderOptions Options = m_Options;
+ Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA;
+ Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE;
+ CPDF_Dictionary* pFormResource = NULL;
+ if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) {
+ pFormResource = pType3Char->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
+ }
+ if (fill_alpha == 255) {
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &Options,
+ pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
+ status.m_Type3FontCache.Append(m_Type3FontCache);
+ status.m_Type3FontCache.Add(pType3Font);
+ m_pDevice->SaveState();
+ status.RenderObjectList(pType3Char->m_pForm, &matrix);
+ m_pDevice->RestoreState();
+ } else {
+ CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox();
+ rect_f.Transform(&matrix);
+ FX_RECT rect = rect_f.GetOutterRect();
+ CFX_FxgeDevice bitmap_device;
+ if (!bitmap_device.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_Argb)) {
+ return TRUE;
+ }
+ bitmap_device.GetBitmap()->Clear(0);
+ CPDF_RenderStatus status;
+ status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, this, pStates, &Options,
+ pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
+ status.m_Type3FontCache.Append(m_Type3FontCache);
+ status.m_Type3FontCache.Add(pType3Font);
+ matrix.TranslateI(-rect.left, -rect.top);
+ matrix.Scale(sa, sd);
+ status.RenderObjectList(pType3Char->m_pForm, &matrix);
+ m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top);
+ }
+ delete pStates;
+ } else if (pType3Char->m_pBitmap) {
+ if (device_class == FXDC_DISPLAY) {
+ CPDF_Type3Cache* pCache = GetCachedType3(pType3Font);
+ refTypeCache.m_dwCount++;
+ CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd);
+ if (pBitmap == NULL) {
+ continue;
+ }
+ int origin_x = FXSYS_round(matrix.e);
+ int origin_y = FXSYS_round(matrix.f);
+ if (pGlyphAndPos) {
+ pGlyphAndPos[iChar].m_pGlyph = pBitmap;
+ pGlyphAndPos[iChar].m_OriginX = origin_x;
+ pGlyphAndPos[iChar].m_OriginY = origin_y;
+ } else {
+ m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, origin_y - pBitmap->m_Top, fill_argb);
+ }
+ } else {
+ CFX_AffineMatrix image_matrix = pType3Char->m_ImageMatrix;
+ image_matrix.Concat(matrix);
+ CPDF_ImageRenderer renderer;
+ if (renderer.Start(this, pType3Char->m_pBitmap, fill_argb, 255, &image_matrix, 0, FALSE)) {
+ renderer.Continue(NULL);
+ }
+ if (!renderer.m_Result) {
+ return FALSE;
+ }
+ }
+ }
+ }
+ if (pGlyphAndPos) {
+ FX_RECT rect = FXGE_GetGlyphsBBox(pGlyphAndPos, textobj->m_nChars, 0, sa, sd);
+ CFX_DIBitmap bitmap;
+ if (!bitmap.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_8bppMask)) {
+ FX_Free(pGlyphAndPos);
+ return TRUE;
+ }
+ bitmap.Clear(0);
+ for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
+ FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar];
+ if (glyph.m_pGlyph == NULL) {
+ continue;
+ }
+ bitmap.TransferBitmap((int)((glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa),
+ (int)((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * sd),
+ glyph.m_pGlyph->m_Bitmap.GetWidth(), glyph.m_pGlyph->m_Bitmap.GetHeight(),
+ &glyph.m_pGlyph->m_Bitmap, 0, 0);
+ }
+ m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb);
+ FX_Free(pGlyphAndPos);
+ }
+ return TRUE;
+}
+class CPDF_CharPosList
+{
+public:
+ CPDF_CharPosList();
+ ~CPDF_CharPosList();
+ void Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont, FX_FLOAT font_size);
+ FXTEXT_CHARPOS* m_pCharPos;
+ FX_DWORD m_nChars;
+};
+FX_FLOAT _CIDTransformToFloat(FX_BYTE ch);
+CPDF_CharPosList::CPDF_CharPosList()
+{
+ m_pCharPos = NULL;
+}
+CPDF_CharPosList::~CPDF_CharPosList()
+{
+ if (m_pCharPos) {
+ FX_Free(m_pCharPos);
+ }
+}
+void CPDF_CharPosList::Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont,
+ FX_FLOAT FontSize)
+{
+ m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars);
+ FXSYS_memset32(m_pCharPos, 0, sizeof(FXTEXT_CHARPOS) * nChars);
+ m_nChars = 0;
+ CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
+ FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting();
+ for (int iChar = 0; iChar < nChars; iChar ++) {
+ FX_DWORD CharCode = nChars == 1 ? (FX_DWORD)(FX_UINTPTR)pCharCodes : pCharCodes[iChar];
+ if (CharCode == (FX_DWORD) - 1) {
+ continue;
+ }
+ FX_BOOL bVert = FALSE;
+ FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
+ if (pCIDFont) {
+ charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode);
+ }
+ charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode);
+#endif
+ if (!pFont->IsEmbedded() && pFont->GetFontType() != PDFFONT_CIDFONT) {
+ charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode);
+ } else {
+ charpos.m_FontCharWidth = 0;
+ }
+ charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0;
+ charpos.m_OriginY = 0;
+ charpos.m_bGlyphAdjust = FALSE;
+ if (pCIDFont == NULL) {
+ continue;
+ }
+ FX_WORD CID = pCIDFont->CIDFromCharCode(CharCode);
+ if (bVertWriting) {
+ charpos.m_OriginY = charpos.m_OriginX;
+ charpos.m_OriginX = 0;
+ short vx, vy;
+ pCIDFont->GetVertOrigin(CID, vx, vy);
+ charpos.m_OriginX -= FontSize * vx / 1000;
+ charpos.m_OriginY -= FontSize * vy / 1000;
+ }
+ FX_LPCBYTE pTransform = pCIDFont->GetCIDTransform(CID);
+ if (pTransform && !bVert) {
+ charpos.m_AdjustMatrix[0] = _CIDTransformToFloat(pTransform[0]);
+ charpos.m_AdjustMatrix[2] = _CIDTransformToFloat(pTransform[2]);
+ charpos.m_AdjustMatrix[1] = _CIDTransformToFloat(pTransform[1]);
+ charpos.m_AdjustMatrix[3] = _CIDTransformToFloat(pTransform[3]);
+ charpos.m_OriginX += _CIDTransformToFloat(pTransform[4]) * FontSize;
+ charpos.m_OriginY += _CIDTransformToFloat(pTransform[5]) * FontSize;
+ charpos.m_bGlyphAdjust = TRUE;
+ }
+ }
+}
+FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
+ CPDF_Font* pFont, FX_FLOAT font_size,
+ const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device,
+ const CFX_GraphStateData* pGraphState,
+ FX_ARGB fill_argb, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag)
+{
+ CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL;
+ CPDF_CharPosList CharPosList;
+ CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size);
+ return pDevice->DrawTextPath(CharPosList.m_nChars, CharPosList.m_pCharPos,
+ &pFont->m_Font, pCache, font_size, pText2User, pUser2Device,
+ pGraphState, fill_argb, stroke_argb, pClippingPath, nFlag);
+}
+void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, int left, int top, CPDF_Font* pFont, int height,
+ const CFX_ByteString& str, FX_ARGB argb)
+{
+ FX_RECT font_bbox;
+ pFont->GetFontBBox(font_bbox);
+ FX_FLOAT font_size = (FX_FLOAT)height * 1000.0f / (FX_FLOAT)(font_bbox.top - font_bbox.bottom);
+ FX_FLOAT origin_x = (FX_FLOAT)left;
+ FX_FLOAT origin_y = (FX_FLOAT)top + font_size * (FX_FLOAT)font_bbox.top / 1000.0f;
+ CFX_AffineMatrix matrix(1.0f, 0, 0, -1.0f, 0, 0);
+ DrawTextString(pDevice, origin_x, origin_y, pFont, font_size, &matrix, str, argb);
+}
+void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, FX_FLOAT origin_x, FX_FLOAT origin_y, CPDF_Font* pFont, FX_FLOAT font_size,
+ const CFX_AffineMatrix* pMatrix, const CFX_ByteString& str, FX_ARGB fill_argb,
+ FX_ARGB stroke_argb, const CFX_GraphStateData* pGraphState, const CPDF_RenderOptions* pOptions)
+{
+ int nChars = pFont->CountChar(str, str.GetLength());
+ if (nChars == 0) {
+ return;
+ }
+ FX_DWORD charcode;
+ int offset = 0;
+ FX_DWORD* pCharCodes;
+ FX_FLOAT* pCharPos;
+ if (nChars == 1) {
+ charcode = pFont->GetNextChar(str, offset);
+ pCharCodes = (FX_DWORD*)(FX_UINTPTR)charcode;
+ pCharPos = NULL;
+ } else {
+ pCharCodes = FX_Alloc(FX_DWORD, nChars);
+ pCharPos = FX_Alloc(FX_FLOAT, nChars - 1);
+ FX_FLOAT cur_pos = 0;
+ for (int i = 0; i < nChars; i ++) {
+ pCharCodes[i] = pFont->GetNextChar(str, offset);
+ if (i) {
+ pCharPos[i - 1] = cur_pos;
+ }
+ cur_pos += pFont->GetCharWidthF(pCharCodes[i]) * font_size / 1000;
+ }
+ }
+ CFX_AffineMatrix matrix;
+ if (pMatrix) {
+ matrix = *pMatrix;
+ }
+ matrix.e = origin_x;
+ matrix.f = origin_y;
+ if (pFont->GetFontType() == PDFFONT_TYPE3)
+ ;
+ else if (stroke_argb == 0) {
+ DrawNormalText(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, fill_argb, pOptions);
+ } else
+ DrawTextPath(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, NULL, pGraphState,
+ fill_argb, stroke_argb, NULL);
+ if (nChars > 1) {
+ FX_Free(pCharCodes);
+ FX_Free(pCharPos);
+ }
+}
+FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
+ CPDF_Font* pFont, FX_FLOAT font_size,
+ const CFX_AffineMatrix* pText2Device,
+ FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions)
+{
+ CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL;
+ CPDF_CharPosList CharPosList;
+ CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size);
+ int FXGE_flags = 0;
+ if (pOptions) {
+ FX_DWORD dwFlags = pOptions->m_Flags;
+ if (dwFlags & RENDER_CLEARTYPE) {
+ FXGE_flags |= FXTEXT_CLEARTYPE;
+ if (dwFlags & RENDER_BGR_STRIPE) {
+ FXGE_flags |= FXTEXT_BGR_STRIPE;
+ }
+ }
+ if (dwFlags & RENDER_NOTEXTSMOOTH) {
+ FXGE_flags |= FXTEXT_NOSMOOTH;
+ }
+ if (dwFlags & RENDER_PRINTGRAPHICTEXT) {
+ FXGE_flags |= FXTEXT_PRINTGRAPHICTEXT;
+ }
+ if (dwFlags & RENDER_NO_NATIVETEXT) {
+ FXGE_flags |= FXTEXT_NO_NATIVETEXT;
+ }
+ if (dwFlags & RENDER_PRINTIMAGETEXT) {
+ FXGE_flags |= FXTEXT_PRINTIMAGETEXT;
+ }
+ } else {
+ FXGE_flags = FXTEXT_CLEARTYPE;
+ }
+ if (pFont->GetFontType() & PDFFONT_CIDFONT) {
+ FXGE_flags |= FXFONT_CIDFONT;
+ }
+ return pDevice->DrawNormalText(CharPosList.m_nChars, CharPosList.m_pCharPos, &pFont->m_Font, pCache, font_size, pText2Device, fill_argb, FXGE_flags);
+}
+void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device,
+ CPDF_Font* pFont, FX_FLOAT font_size,
+ const CFX_AffineMatrix* pTextMatrix, FX_BOOL bFill, FX_BOOL bStroke)
+{
+ if (!bStroke) {
+ CPDF_PathObject path;
+ CPDF_TextObject* pCopy = FX_NEW CPDF_TextObject;
+ pCopy->Copy(textobj);
+ path.m_bStroke = FALSE;
+ path.m_FillType = FXFILL_WINDING;
+ path.m_ClipPath.AppendTexts(&pCopy, 1);
+ path.m_ColorState = textobj->m_ColorState;
+ path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom, textobj->m_Right, textobj->m_Top);
+ path.m_Left = textobj->m_Left;
+ path.m_Bottom = textobj->m_Bottom;
+ path.m_Right = textobj->m_Right;
+ path.m_Top = textobj->m_Top;
+ RenderSingleObject(&path, pObj2Device);
+ return;
+ }
+ CFX_FontCache* pCache;
+ if (pFont->m_pDocument) {
+ pCache = pFont->m_pDocument->GetRenderData()->GetFontCache();
+ } else {
+ pCache = CFX_GEModule::Get()->GetFontCache();
+ }
+ CFX_FaceCache* pFaceCache = pCache->GetCachedFace(&pFont->m_Font);
+ FX_FONTCACHE_DEFINE(pCache, &pFont->m_Font);
+ CPDF_CharPosList CharPosList;
+ CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size);
+ for (FX_DWORD i = 0; i < CharPosList.m_nChars; i ++) {
+ FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i];
+ const CFX_PathData* pPath = pFaceCache->LoadGlyphPath(&pFont->m_Font, charpos.m_GlyphIndex,
+ charpos.m_FontCharWidth);
+ if (pPath == NULL) {
+ continue;
+ }
+ CPDF_PathObject path;
+ path.m_GraphState = textobj->m_GraphState;
+ path.m_ColorState = textobj->m_ColorState;
+ CFX_AffineMatrix matrix;
+ if (charpos.m_bGlyphAdjust)
+ matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1],
+ charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0);
+ matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, charpos.m_OriginY);
+ path.m_Path.New()->Append(pPath, &matrix);
+ path.m_Matrix = *pTextMatrix;
+ path.m_bStroke = bStroke;
+ path.m_FillType = bFill ? FXFILL_WINDING : 0;
+ path.CalcBoundingBox();
+ ProcessPath(&path, pObj2Device);
+ }
+}
+CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width)
+{
+ int glyph_index = GlyphFromCharCode(charcode);
+ if (m_Font.m_Face == NULL) {
+ return NULL;
+ }
+ return m_Font.LoadGlyphPath(glyph_index, dest_width);
+}
diff --git a/core/src/fpdfapi/fpdf_render/render_int.h b/core/src/fpdfapi/fpdf_render/render_int.h new file mode 100644 index 0000000000..3acde0ec43 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/render_int.h @@ -0,0 +1,462 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef _FPDF_PAGEOBJ_H_
+#include "../../../include/fpdfapi/fpdf_pageobj.h"
+#endif
+class CPDF_QuickStretcher;
+#define TYPE3_MAX_BLUES 16
+class CPDF_Type3Glyphs : public CFX_Object
+{
+public:
+ CPDF_Type3Glyphs()
+ {
+ m_GlyphMap.InitHashTable(253);
+ m_TopBlueCount = m_BottomBlueCount = 0;
+ }
+ ~CPDF_Type3Glyphs();
+ CFX_MapPtrToPtr m_GlyphMap;
+ void AdjustBlue(FX_FLOAT top, FX_FLOAT bottom, int& top_line, int& bottom_line);
+
+ int m_TopBlue[TYPE3_MAX_BLUES], m_BottomBlue[TYPE3_MAX_BLUES];
+ int m_TopBlueCount, m_BottomBlueCount;
+};
+class CFX_GlyphBitmap;
+class CPDF_Type3Cache : public CFX_Object
+{
+public:
+ CPDF_Type3Cache(CPDF_Type3Font* pFont)
+ {
+ m_pFont = pFont;
+ }
+ ~CPDF_Type3Cache();
+ CFX_GlyphBitmap* LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX = 1.0f, FX_FLOAT retinaScaleY = 1.0f);
+protected:
+ CFX_GlyphBitmap* RenderGlyph(CPDF_Type3Glyphs* pSize, FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX = 1.0f, FX_FLOAT retinaScaleY = 1.0f);
+ CPDF_Type3Font* m_pFont;
+ CFX_MapByteStringToPtr m_SizeMap;
+};
+class CPDF_TransferFunc : public CFX_Object
+{
+public:
+ CPDF_Document* m_pPDFDoc;
+ FX_BYTE m_Samples[256 * 3];
+ FX_BOOL m_bIdentity;
+
+ CFX_DIBSource* TranslateImage(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc);
+ FX_COLORREF TranslateColor(FX_COLORREF src);
+};
+typedef CFX_MapPtrTemplate<CPDF_Font*, CPDF_CountedObject<CPDF_Type3Cache*>*> CPDF_Type3CacheMap;
+typedef CFX_MapPtrTemplate<CPDF_Object*, CPDF_CountedObject<CPDF_TransferFunc*>*> CPDF_TransferFuncMap;
+class CPDF_DocRenderData : public CFX_Object
+{
+public:
+ CPDF_DocRenderData(CPDF_Document* pPDFDoc = NULL);
+ ~CPDF_DocRenderData();
+ FX_BOOL Initialize();
+ CPDF_Type3Cache* GetCachedType3(CPDF_Type3Font* pFont);
+ CPDF_TransferFunc* GetTransferFunc(CPDF_Object* pObj);
+ CFX_FontCache* GetFontCache()
+ {
+ return m_pFontCache;
+ }
+ void Clear(FX_BOOL bRelease = FALSE);
+ void ReleaseCachedType3(CPDF_Type3Font* pFont);
+ void ReleaseTransferFunc(CPDF_Object* pObj);
+private:
+ CPDF_Document* m_pPDFDoc;
+ CFX_FontCache* m_pFontCache;
+ CPDF_Type3CacheMap m_Type3FaceMap;
+ CPDF_TransferFuncMap m_TransferFuncMap;
+};
+struct _PDF_RenderItem {
+public:
+ CPDF_PageObjects* m_pObjectList;
+ CFX_AffineMatrix m_Matrix;
+};
+typedef CFX_ArrayTemplate<_PDF_RenderItem> CPDF_RenderLayer;
+class IPDF_ObjectRenderer : public CFX_Object
+{
+public:
+ static IPDF_ObjectRenderer* Create(int type);
+ virtual ~IPDF_ObjectRenderer() {}
+ virtual FX_BOOL Start(CPDF_RenderStatus* pRenderStatus, const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStdCS, int blendType = FXDIB_BLEND_NORMAL) = 0;
+ virtual FX_BOOL Continue(IFX_Pause* pPause) = 0;
+ FX_BOOL m_Result;
+};
+class CPDF_RenderStatus : public CFX_Object
+{
+public:
+ CPDF_RenderStatus();
+ ~CPDF_RenderStatus();
+ FX_BOOL Initialize(int level, class CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pDeviceMatrix,
+ const CPDF_PageObject* pStopObj, const CPDF_RenderStatus* pParentStatus,
+ const CPDF_GraphicStates* pInitialStates, const CPDF_RenderOptions* pOptions,
+ int transparency, FX_BOOL bDropObjects, CPDF_Dictionary* pFormResource = NULL,
+ FX_BOOL bStdCS = FALSE, CPDF_Type3Char* pType3Char = NULL, FX_ARGB fill_color = 0,
+ FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE);
+ void RenderObjectList(const CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObj2Device);
+ void RenderSingleObject(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL ContinueSingleObject(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, IFX_Pause* pPause);
+ CPDF_RenderOptions m_Options;
+ CPDF_Dictionary* m_pFormResource;
+ CPDF_Dictionary* m_pPageResource;
+ CFX_PtrArray m_Type3FontCache;
+ CPDF_RenderContext* GetContext()
+ {
+ return m_pContext;
+ }
+protected:
+ friend class CPDF_ImageRenderer;
+ friend class CPDF_RenderContext;
+ void ProcessClipPath(CPDF_ClipPath ClipPath, const CFX_AffineMatrix* pObj2Device);
+ void DrawClipPath(CPDF_ClipPath ClipPath, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL ProcessTransparency(const CPDF_PageObject* PageObj, const CFX_AffineMatrix* pObj2Device);
+ void ProcessObjectNoClip(const CPDF_PageObject* PageObj, const CFX_AffineMatrix* pObj2Device);
+ void DrawObjWithBackground(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL DrawObjWithBlend(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL ProcessPath(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device);
+ void ProcessPathPattern(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, int& filltype, FX_BOOL& bStroke);
+ void DrawPathWithPattern(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, CPDF_Color* pColor, FX_BOOL bStroke);
+ void DrawTilingPattern(CPDF_TilingPattern* pPattern, CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke);
+ void DrawShadingPattern(CPDF_ShadingPattern* pPattern, CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke);
+ FX_BOOL SelectClipPath(CPDF_PathObject* pPathObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStroke);
+ FX_BOOL ProcessImage(CPDF_ImageObject* pImageObj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL OutputBitmapAlpha(CPDF_ImageObject* pImageObj, const CFX_AffineMatrix* pImage2Device);
+ FX_BOOL OutputImage(CPDF_ImageObject* pImageObj, const CFX_AffineMatrix* pImage2Device);
+ FX_BOOL OutputDIBSource(const CFX_DIBSource* pOutputBitmap, FX_ARGB fill_argb, int bitmap_alpha,
+ const CFX_AffineMatrix* pImage2Device, CPDF_ImageCache* pImageCache, FX_DWORD flags);
+ void CompositeDIBitmap(CFX_DIBitmap* pDIBitmap, int left, int top, FX_ARGB mask_argb,
+ int bitmap_alpha, int blend_mode, int bIsolated);
+ FX_BOOL ProcessInlines(CPDF_InlineImages* pInlines, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL ProcessShading(CPDF_ShadingObject* pShadingObj, const CFX_AffineMatrix* pObj2Device);
+ void DrawShading(CPDF_ShadingPattern* pPattern, CFX_AffineMatrix* pMatrix, FX_RECT& clip_rect,
+ int alpha, FX_BOOL bAlphaMode);
+ FX_BOOL ProcessType3Text(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL ProcessText(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device, CFX_PathData* pClippingPath);
+ void DrawTextPathWithPattern(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device,
+ CPDF_Font* pFont, FX_FLOAT font_size,
+ const CFX_AffineMatrix* pTextMatrix, FX_BOOL bFill, FX_BOOL bStroke);
+ FX_BOOL ProcessForm(CPDF_FormObject* pFormObj, const CFX_AffineMatrix* pObj2Device);
+ CFX_DIBitmap* GetBackdrop(const CPDF_PageObject* pObj, const FX_RECT& rect, int& left, int& top,
+ FX_BOOL bBackAlphaRequired);
+ CFX_DIBitmap* LoadSMask(CPDF_Dictionary* pSMaskDict, FX_RECT* pClipRect, const CFX_AffineMatrix* pMatrix);
+ void Init(CPDF_RenderContext* pParent);
+ static class CPDF_Type3Cache* GetCachedType3(CPDF_Type3Font* pFont);
+ static CPDF_GraphicStates* CloneObjStates(const CPDF_GraphicStates* pPathObj, FX_BOOL bStroke);
+ CPDF_TransferFunc* GetTransferFunc(CPDF_Object* pObject) const;
+ FX_ARGB GetFillArgb(const CPDF_PageObject* pObj, FX_BOOL bType3 = FALSE) const;
+ FX_ARGB GetStrokeArgb(const CPDF_PageObject* pObj) const;
+ CPDF_RenderContext* m_pContext;
+ FX_BOOL m_bStopped;
+ void DitherObjectArea(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device);
+ FX_BOOL GetObjectClippedRect(const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bLogical, FX_RECT &rect) const;
+ void GetScaledMatrix(CFX_Matrix &matrix) const;
+protected:
+ int m_Level;
+ CFX_RenderDevice* m_pDevice;
+ CFX_AffineMatrix m_DeviceMatrix;
+ CPDF_ClipPath m_LastClipPath;
+ const CPDF_PageObject* m_pCurObj;
+ const CPDF_PageObject* m_pStopObj;
+ CPDF_GraphicStates m_InitialStates;
+ int m_HalftoneLimit;
+ IPDF_ObjectRenderer* m_pObjectRenderer;
+ FX_BOOL m_bPrint;
+ int m_Transparency;
+ int m_DitherBits;
+ FX_BOOL m_bDropObjects;
+ FX_BOOL m_bStdCS;
+ FX_DWORD m_GroupFamily;
+ FX_BOOL m_bLoadMask;
+ CPDF_Type3Char * m_pType3Char;
+ FX_ARGB m_T3FillColor;
+ int m_curBlend;
+};
+class CPDF_ImageLoader : public CFX_Object
+{
+public:
+ CPDF_ImageLoader()
+ {
+ m_pBitmap = NULL;
+ m_pMask = NULL;
+ m_MatteColor = 0;
+ m_bCached = FALSE;
+ m_nDownsampleWidth = 0;
+ m_nDownsampleHeight = 0;
+ }
+
+ FX_BOOL Load(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL);
+
+ FX_BOOL StartLoadImage(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_LPVOID& LoadHandle, FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL, FX_INT32 nDownsampleWidth = 0, FX_INT32 nDownsampleHeight = 0);
+ FX_BOOL Continue(FX_LPVOID LoadHandle, IFX_Pause* pPause);
+ ~CPDF_ImageLoader();
+ CFX_DIBSource* m_pBitmap;
+ CFX_DIBSource* m_pMask;
+ FX_DWORD m_MatteColor;
+ FX_BOOL m_bCached;
+protected:
+ FX_INT32 m_nDownsampleWidth;
+ FX_INT32 m_nDownsampleHeight;
+};
+class CPDF_ProgressiveImageLoaderHandle : public CFX_Object
+{
+public:
+ CPDF_ProgressiveImageLoaderHandle();
+ ~CPDF_ProgressiveImageLoaderHandle();
+
+ FX_BOOL Start(CPDF_ImageLoader* pImageLoader, const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL, FX_INT32 nDownsampleWidth = 0, FX_INT32 nDownsampleHeight = 0);
+ FX_BOOL Continue(IFX_Pause* pPause);
+protected:
+ CPDF_ImageLoader* m_pImageLoader;
+ CPDF_PageRenderCache* m_pCache;
+ CPDF_ImageObject* m_pImage;
+ FX_INT32 m_nDownsampleWidth;
+ FX_INT32 m_nDownsampleHeight;
+};
+class CFX_ImageTransformer;
+class CPDF_ImageRenderer : public IPDF_ObjectRenderer
+{
+public:
+ CPDF_ImageRenderer();
+ ~CPDF_ImageRenderer();
+ FX_BOOL Start(CPDF_RenderStatus* pStatus, const CPDF_PageObject* pObj, const CFX_AffineMatrix* pObj2Device, FX_BOOL bStdCS, int blendType = FXDIB_BLEND_NORMAL);
+ FX_BOOL Start(CPDF_RenderStatus* pStatus, const CFX_DIBSource* pDIBSource, FX_ARGB bitmap_argb,
+ int bitmap_alpha, const CFX_AffineMatrix* pImage2Device, FX_DWORD flags, FX_BOOL bStdCS, int blendType = FXDIB_BLEND_NORMAL);
+ FX_BOOL Continue(IFX_Pause* pPause);
+protected:
+ CPDF_RenderStatus* m_pRenderStatus;
+ CPDF_ImageObject* m_pImageObject;
+ int m_Status;
+ const CFX_AffineMatrix* m_pObj2Device;
+ CFX_AffineMatrix m_ImageMatrix;
+ CPDF_ImageLoader m_Loader;
+ const CFX_DIBSource* m_pDIBSource;
+ CFX_DIBitmap* m_pClone;
+ int m_BitmapAlpha;
+ FX_BOOL m_bPatternColor;
+ CPDF_Pattern* m_pPattern;
+ FX_ARGB m_FillArgb;
+ FX_DWORD m_Flags;
+ CPDF_QuickStretcher* m_pQuickStretcher;
+ CFX_ImageTransformer* m_pTransformer;
+ CPDF_ImageRenderer* m_pRenderer2;
+ FX_LPVOID m_DeviceHandle;
+ FX_LPVOID m_LoadHandle;
+ FX_BOOL m_bStdCS;
+ int m_BlendType;
+ FX_BOOL StartBitmapAlpha();
+ FX_BOOL StartDIBSource();
+ FX_BOOL StartRenderDIBSource();
+ FX_BOOL StartLoadDIBSource();
+ FX_BOOL DrawMaskedImage();
+ FX_BOOL DrawPatternImage(const CFX_Matrix* pObj2Device);
+};
+class CPDF_ScaledRenderBuffer : public CFX_Object
+{
+public:
+ CPDF_ScaledRenderBuffer();
+ ~CPDF_ScaledRenderBuffer();
+ FX_BOOL Initialize(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice, FX_RECT* pRect,
+ const CPDF_PageObject* pObj, const CPDF_RenderOptions *pOptions = NULL, int max_dpi = 0);
+ CFX_RenderDevice* GetDevice()
+ {
+ return m_pBitmapDevice ? m_pBitmapDevice : m_pDevice;
+ }
+ CFX_AffineMatrix* GetMatrix()
+ {
+ return &m_Matrix;
+ }
+ void OutputToDevice();
+private:
+ CFX_RenderDevice* m_pDevice;
+ CPDF_RenderContext* m_pContext;
+ FX_RECT m_Rect;
+ const CPDF_PageObject* m_pObject;
+ CFX_FxgeDevice* m_pBitmapDevice;
+ CFX_AffineMatrix m_Matrix;
+};
+class ICodec_ScanlineDecoder;
+class CPDF_QuickStretcher : public CFX_Object
+{
+public:
+ CPDF_QuickStretcher();
+ ~CPDF_QuickStretcher();
+ FX_BOOL Start(CPDF_ImageObject* pImageObj, CFX_AffineMatrix* pImage2Device, const FX_RECT* pClipBox);
+ FX_BOOL Continue(IFX_Pause* pPause);
+ CFX_DIBitmap* m_pBitmap;
+ int m_ResultLeft, m_ResultTop, m_ClipLeft, m_ClipTop;
+ int m_DestWidth, m_DestHeight, m_ResultWidth, m_ResultHeight;
+ int m_Bpp, m_SrcWidth, m_SrcHeight;
+ FX_BOOL m_bFlipX, m_bFlipY;
+ CPDF_ColorSpace* m_pCS;
+ ICodec_ScanlineDecoder* m_pDecoder;
+ CPDF_StreamAcc m_StreamAcc;
+ int m_LineIndex;
+};
+class CPDF_DeviceBuffer : public CFX_Object
+{
+public:
+ CPDF_DeviceBuffer();
+ ~CPDF_DeviceBuffer();
+ FX_BOOL Initialize(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice, FX_RECT* pRect,
+ const CPDF_PageObject* pObj, int max_dpi = 0);
+ void OutputToDevice();
+ CFX_DIBitmap* GetBitmap() const
+ {
+ return m_pBitmap;
+ }
+ const CFX_AffineMatrix* GetMatrix() const
+ {
+ return &m_Matrix;
+ }
+private:
+ CFX_RenderDevice* m_pDevice;
+ CPDF_RenderContext* m_pContext;
+ FX_RECT m_Rect;
+ const CPDF_PageObject* m_pObject;
+ CFX_DIBitmap* m_pBitmap;
+ CFX_AffineMatrix m_Matrix;
+};
+class CPDF_ImageCache : public CFX_Object
+{
+public:
+ CPDF_ImageCache(CPDF_Document* pDoc, CPDF_Stream* pStream);
+ ~CPDF_ImageCache();
+ void ClearImageData();
+ void Reset(const CFX_DIBitmap* pBitmap);
+ FX_BOOL GetCachedBitmap(CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE,
+ CPDF_RenderStatus* pRenderStatus = NULL, FX_INT32 downsampleWidth = 0, FX_INT32 downsampleHeight = 0);
+ FX_DWORD EstimateSize() const
+ {
+ return m_dwCacheSize;
+ }
+ FX_DWORD GetTimeCount() const
+ {
+ return m_dwTimeCount;
+ }
+ CPDF_Stream* GetStream() const
+ {
+ return m_pStream;
+ }
+ void SetTimeCount(FX_DWORD dwTimeCount)
+ {
+ m_dwTimeCount = dwTimeCount;
+ }
+ int m_dwTimeCount;
+public:
+ int StartGetCachedBitmap(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0,
+ FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL, FX_INT32 downsampleWidth = 0, FX_INT32 downsampleHeight = 0);
+ int Continue(IFX_Pause* pPause);
+ int ContinueGetCachedBitmap();
+ CFX_DIBSource* DetachBitmap();
+ CFX_DIBSource* DetachMask();
+ CFX_DIBSource* m_pCurBitmap;
+ CFX_DIBSource* m_pCurMask;
+ FX_DWORD m_MatteColor;
+ CPDF_RenderStatus* m_pRenderStatus;
+protected:
+ CPDF_Document* m_pDocument;
+ CPDF_Stream* m_pStream;
+ CFX_DIBSource* m_pCachedBitmap;
+ CFX_DIBSource* m_pCachedMask;
+ FX_DWORD m_dwCacheSize;
+ void CalcSize();
+};
+typedef struct {
+ FX_FLOAT m_DecodeMin;
+ FX_FLOAT m_DecodeStep;
+ int m_ColorKeyMin;
+ int m_ColorKeyMax;
+} DIB_COMP_DATA;
+class CPDF_DIBSource : public CFX_DIBSource
+{
+public:
+ CPDF_DIBSource();
+ virtual ~CPDF_DIBSource();
+ FX_BOOL Load(CPDF_Document* pDoc, const CPDF_Stream* pStream,
+ CPDF_DIBSource** ppMask, FX_DWORD* pMatteColor,
+ CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE);
+ virtual FX_BOOL SkipToScanline(int line, IFX_Pause* pPause) const;
+ virtual FX_LPBYTE GetBuffer() const;
+ virtual FX_LPCBYTE GetScanline(int line) const;
+ virtual void DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
+ int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const;
+ virtual void SetDownSampleSize(int dest_width, int dest_height) const;
+ CFX_DIBitmap* GetBitmap() const;
+ void ReleaseBitmap(CFX_DIBitmap*) const;
+ void ClearImageData();
+public:
+ int StartLoadDIBSource(CPDF_Document* pDoc, const CPDF_Stream* pStream, FX_BOOL bHasMask,
+ CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources,
+ FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE);
+ int ContinueLoadDIBSource(IFX_Pause* pPause);
+ int StratLoadMask();
+ int StartLoadMaskDIB();
+ int ContinueLoadMaskDIB(IFX_Pause* pPause);
+ int ContinueToLoadMask();
+ CPDF_DIBSource* DetachMask();
+ CPDF_DIBSource* m_pMask;
+ FX_DWORD m_MatteColor;
+ FX_LPVOID m_pJbig2Context;
+ CPDF_StreamAcc* m_pGlobalStream;
+ FX_BOOL m_bStdCS;
+ int m_Status;
+ CPDF_Object* m_pMaskStream;
+ FX_BOOL m_bHasMask;
+protected:
+ FX_BOOL LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources);
+ CPDF_DIBSource* LoadMask(FX_DWORD& MatteColor);
+ CPDF_DIBSource* LoadMaskDIB(CPDF_Stream* pMask);
+ void LoadJpxBitmap();
+ void LoadJbig2Bitmap();
+ void LoadPalette();
+ FX_BOOL CreateDecoder();
+ void TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan) const;
+ FX_DWORD GetValidBpp() const;
+
+ CPDF_Document* m_pDocument;
+ const CPDF_Stream* m_pStream;
+ CPDF_StreamAcc* m_pStreamAcc;
+ const CPDF_Dictionary* m_pDict;
+ CPDF_ColorSpace* m_pColorSpace;
+ FX_DWORD m_Family, m_bpc, m_nComponents, m_GroupFamily;
+ FX_BOOL m_bLoadMask;
+ FX_BOOL m_bDefaultDecode, m_bImageMask, m_bColorKey;
+ DIB_COMP_DATA* m_pCompData;
+ FX_LPBYTE m_pLineBuf;
+ FX_LPBYTE m_pMaskedLine;
+ CFX_DIBitmap* m_pCachedBitmap;
+ ICodec_ScanlineDecoder* m_pDecoder;
+};
+#ifdef _FPDFAPI_MINI_
+#define FPDF_HUGE_IMAGE_SIZE 3000000
+#else
+#define FPDF_HUGE_IMAGE_SIZE 60000000
+#endif
+class CPDF_DIBTransferFunc : public CFX_FilteredDIB
+{
+public:
+ CPDF_DIBTransferFunc(const CPDF_TransferFunc* pTransferFunc);
+ virtual FXDIB_Format GetDestFormat();
+ virtual FX_ARGB* GetDestPalette()
+ {
+ return NULL;
+ }
+ virtual void TranslateScanline(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf) const;
+ virtual void TranslateDownSamples(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf, int pixels, int Bpp) const;
+ FX_LPCBYTE m_RampR;
+ FX_LPCBYTE m_RampG;
+ FX_LPCBYTE m_RampB;
+};
+struct _CPDF_UniqueKeyGen {
+ void Generate(int count, ...);
+ FX_CHAR m_Key[128];
+ int m_KeyLen;
+};
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