From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001 From: John Abd-El-Malek Date: Sat, 17 May 2014 22:33:34 -0700 Subject: Initial commit. --- core/src/fpdfapi/fpdf_render/fpdf_render.cpp | 1488 ++++++++++++++++++++++++++ 1 file changed, 1488 insertions(+) create mode 100644 core/src/fpdfapi/fpdf_render/fpdf_render.cpp (limited to 'core/src/fpdfapi/fpdf_render/fpdf_render.cpp') 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* 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* 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* pCache; + if (!m_Type3FaceMap.Lookup(pFont, pCache)) { + CPDF_Type3Cache* pType3 = FX_NEW CPDF_Type3Cache(pFont); + pCache = FX_NEW CPDF_CountedObject; + 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* 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* 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; + 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* 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; +} -- cgit v1.2.3