// 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);
}
}
}
{
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);
}
}
}
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)
{
}
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);
}
// static
int CPDF_RenderStatus::s_CurrentRecursionDepth = 0;
CPDF_RenderStatus::CPDF_RenderStatus()
{
m_pContext = NULL;
m_bStopped = FALSE;
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(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_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();
}
m_pObjectRenderer = NULL;
m_Transparency = transparency;
return TRUE;
}
void CPDF_RenderStatus::RenderObjectList(const CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObj2Device)
{
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)
{
CFX_AutoRestorer<int> restorer(&s_CurrentRecursionDepth);
if (++s_CurrentRecursionDepth > kRenderMaxRecursionDepth) {
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);
}
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);
}
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 (!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)
{
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_pContext, buffer.GetDevice(), buffer.GetMatrix(), NULL, NULL, NULL, &m_Options, m_Transparency, m_bDropObjects, pFormResource);
status.RenderSingleObject(pObj, &matrix);
buffer.OutputToDevice();
}
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_pContext, m_pDevice, NULL, m_pStopObj,
this, pFormObj, &m_Options, m_Transparency, m_bDropObjects, pResources, FALSE);
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;
}
const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)pPathObj)->m_GeneralState;
if (pGeneralData && pGeneralData->m_StrokeAdjust) {
FillType |= FX_STROKE_ADJUST;
}
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);
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);
}
}
} 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);
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);
}
}
} 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_fabs(deviceCTM.a);
FX_FLOAT scaleY = FXSYS_fabs(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_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_fabs(deviceCTM.a);
FX_FLOAT scaleY = FXSYS_fabs(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(this, pDevice, pLastMatrix, pStopObj, NULL, NULL, pOptions,
pItem->m_pObjectList->m_Transparency, FALSE, NULL);
status.RenderObjectList(pItem->m_pObjectList, &FinalMatrix);
if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
}
if (status.m_bStopped) {
pDevice->RestoreState();
break;
}
} else {
CPDF_RenderStatus status;
status.Initialize(this, pDevice, NULL, pStopObj, NULL, NULL, pOptions,
pItem->m_pObjectList->m_Transparency, FALSE, NULL);
status.RenderObjectList(pItem->m_pObjectList, &pItem->m_Matrix);
if (status.m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
m_pPageCache->CacheOptimization(status.m_Options.m_dwLimitCacheSize);
}
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);
}
#define RENDER_STEP_LIMIT 100
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(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 (pCurObj->m_Type == PDFPAGE_IMAGE && m_pRenderer->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
m_pContext->GetPageCache()->CacheOptimization(m_pRenderer->m_Options.m_dwLimitCacheSize);
}
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;
m_RenderStepLimit = 100;
}
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);
}
}
#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 {
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());
}
}
CPDF_ScaledRenderBuffer::CPDF_ScaledRenderBuffer()
{
m_pBitmapDevice = NULL;
}
CPDF_ScaledRenderBuffer::~CPDF_ScaledRenderBuffer()
{
if (m_pBitmapDevice) {
delete m_pBitmapDevice;
}
}
#define _FPDFAPI_IMAGESIZE_LIMIT_ (30 * 1024 * 1024)
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);
}
m_pContext->GetBackground(m_pBitmapDevice->GetBitmap(), m_pObject, pOptions, &m_Matrix);
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;
}