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Unified Diff: core/src/fpdfapi/fpdf_render/fpdf_render.cpp

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: 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
deleted file mode 100644
index 1a7a83a55fdea4efacf403b3f272d41e6c16af43..0000000000000000000000000000000000000000
--- a/core/src/fpdfapi/fpdf_render/fpdf_render.cpp
+++ /dev/null
@@ -1,1339 +0,0 @@
-// 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 "core/src/fpdfapi/fpdf_render/render_int.h"
-
-#include "core/include/fpdfapi/cpdf_array.h"
-#include "core/include/fpdfapi/cpdf_dictionary.h"
-#include "core/include/fpdfapi/cpdf_document.h"
-#include "core/include/fpdfapi/fpdf_module.h"
-#include "core/include/fpdfapi/fpdf_render.h"
-#include "core/include/fxge/fx_ge.h"
-#include "core/src/fpdfapi/fpdf_page/pageint.h"
-
-CPDF_DocRenderData::CPDF_DocRenderData(CPDF_Document* pPDFDoc)
- : m_pPDFDoc(pPDFDoc), m_pFontCache(new CFX_FontCache) {}
-
-CPDF_DocRenderData::~CPDF_DocRenderData() {
- Clear(TRUE);
-}
-
-void CPDF_DocRenderData::Clear(FX_BOOL bRelease) {
- for (auto it = m_Type3FaceMap.begin(); it != m_Type3FaceMap.end();) {
- auto curr_it = it++;
- CPDF_CountedObject<CPDF_Type3Cache>* cache = curr_it->second;
- if (bRelease || cache->use_count() < 2) {
- delete cache->get();
- delete cache;
- m_Type3FaceMap.erase(curr_it);
- }
- }
-
- for (auto it = m_TransferFuncMap.begin(); it != m_TransferFuncMap.end();) {
- auto curr_it = it++;
- CPDF_CountedObject<CPDF_TransferFunc>* value = curr_it->second;
- if (bRelease || value->use_count() < 2) {
- delete value->get();
- delete value;
- m_TransferFuncMap.erase(curr_it);
- }
- }
-
- if (m_pFontCache) {
- if (bRelease) {
- delete m_pFontCache;
- m_pFontCache = NULL;
- } else {
- m_pFontCache->FreeCache(FALSE);
- }
- }
-}
-
-CPDF_Type3Cache* CPDF_DocRenderData::GetCachedType3(CPDF_Type3Font* pFont) {
- CPDF_CountedObject<CPDF_Type3Cache>* pCache;
- auto it = m_Type3FaceMap.find(pFont);
- if (it == m_Type3FaceMap.end()) {
- CPDF_Type3Cache* pType3 = new CPDF_Type3Cache(pFont);
- pCache = new CPDF_CountedObject<CPDF_Type3Cache>(pType3);
- m_Type3FaceMap[pFont] = pCache;
- } else {
- pCache = it->second;
- }
- return pCache->AddRef();
-}
-
-void CPDF_DocRenderData::ReleaseCachedType3(CPDF_Type3Font* pFont) {
- auto it = m_Type3FaceMap.find(pFont);
- if (it != m_Type3FaceMap.end())
- it->second->RemoveRef();
-}
-
-class CPDF_RenderModule : public IPDF_RenderModule {
- public:
- CPDF_RenderModule() {}
-
- private:
- ~CPDF_RenderModule() override {}
-
- CPDF_DocRenderData* CreateDocData(CPDF_Document* pDoc) override;
- void DestroyDocData(CPDF_DocRenderData* p) override;
- void ClearDocData(CPDF_DocRenderData* p) override;
-
- CPDF_DocRenderData* GetRenderData() override { return &m_RenderData; }
-
- CPDF_PageRenderCache* CreatePageCache(CPDF_Page* pPage) override {
- return new CPDF_PageRenderCache(pPage);
- }
-
- void DestroyPageCache(CPDF_PageRenderCache* pCache) override;
-
- CPDF_DocRenderData m_RenderData;
-};
-
-CPDF_DocRenderData* CPDF_RenderModule::CreateDocData(CPDF_Document* pDoc) {
- return new CPDF_DocRenderData(pDoc);
-}
-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() {
- m_pRenderModule.reset(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_pFormResource(nullptr),
- m_pPageResource(nullptr),
- m_pContext(nullptr),
- m_bStopped(FALSE),
- m_pDevice(nullptr),
- m_pCurObj(nullptr),
- m_pStopObj(nullptr),
- m_HalftoneLimit(0),
- m_bPrint(FALSE),
- m_Transparency(0),
- m_DitherBits(0),
- m_bDropObjects(FALSE),
- m_bStdCS(FALSE),
- m_GroupFamily(0),
- m_bLoadMask(FALSE),
- m_pType3Char(nullptr),
- m_T3FillColor(0),
- m_curBlend(FXDIB_BLEND_NORMAL) {}
-
-CPDF_RenderStatus::~CPDF_RenderStatus() {
-}
-
-FX_BOOL CPDF_RenderStatus::Initialize(CPDF_RenderContext* pContext,
- CFX_RenderDevice* pDevice,
- const CFX_Matrix* 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->GetPageResources();
- 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.reset();
- m_Transparency = transparency;
- return TRUE;
-}
-void CPDF_RenderStatus::RenderObjectList(
- const CPDF_PageObjectHolder* pObjectHolder,
- const CFX_Matrix* pObj2Device) {
- CFX_FloatRect clip_rect(m_pDevice->GetClipBox());
- CFX_Matrix device2object;
- device2object.SetReverse(*pObj2Device);
- device2object.TransformRect(clip_rect);
-
- for (const auto& pCurObj : *pObjectHolder->GetPageObjectList()) {
- if (pCurObj.get() == m_pStopObj) {
- m_bStopped = TRUE;
- return;
- }
- if (!pCurObj)
- continue;
-
- if (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.get(), pObj2Device);
- if (m_bStopped)
- return;
- }
-}
-void CPDF_RenderStatus::RenderSingleObject(const CPDF_PageObject* pObj,
- const CFX_Matrix* 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_Matrix* pObj2Device,
- IFX_Pause* pPause) {
- if (m_pObjectRenderer) {
- if (m_pObjectRenderer->Continue(pPause))
- return TRUE;
-
- if (!m_pObjectRenderer->m_Result)
- DrawObjWithBackground(pObj, pObj2Device);
- m_pObjectRenderer.reset();
- return FALSE;
- }
-
- m_pCurObj = pObj;
- if (m_Options.m_pOCContext && pObj->m_ContentMark.NotNull() &&
- !m_Options.m_pOCContext->CheckObjectVisible(pObj)) {
- return FALSE;
- }
-
- ProcessClipPath(pObj->m_ClipPath, pObj2Device);
- if (ProcessTransparency(pObj, pObj2Device))
- return FALSE;
-
- if (pObj->IsImage()) {
- m_pObjectRenderer.reset(IPDF_ObjectRenderer::Create());
- if (!m_pObjectRenderer->Start(this, pObj, pObj2Device, FALSE)) {
- if (!m_pObjectRenderer->m_Result)
- DrawObjWithBackground(pObj, pObj2Device);
- m_pObjectRenderer.reset();
- return FALSE;
- }
- return ContinueSingleObject(pObj, pObj2Device, pPause);
- }
-
- ProcessObjectNoClip(pObj, pObj2Device);
- return FALSE;
-}
-
-IPDF_ObjectRenderer* IPDF_ObjectRenderer::Create() {
- return new CPDF_ImageRenderer;
-}
-
-FX_BOOL CPDF_RenderStatus::GetObjectClippedRect(const CPDF_PageObject* pObj,
- const CFX_Matrix* 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 + (int32_t)FXSYS_ceil((FX_FLOAT)rect.Width() * a);
- rect.bottom = rect.top + (int32_t)FXSYS_ceil((FX_FLOAT)rect.Height() * d);
- rtClip.right =
- rtClip.left + (int32_t)FXSYS_ceil((FX_FLOAT)rtClip.Width() * a);
- rtClip.bottom =
- rtClip.top + (int32_t)FXSYS_ceil((FX_FLOAT)rtClip.Height() * d);
- }
- }
- rect.Intersect(rtClip);
- return rect.IsEmpty();
-}
-void CPDF_RenderStatus::DitherObjectArea(const CPDF_PageObject* pObj,
- const CFX_Matrix* pObj2Device) {
- CFX_DIBitmap* pBitmap = m_pDevice->GetBitmap();
- if (!pBitmap) {
- 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_Matrix* pObj2Device) {
- FX_BOOL bRet = FALSE;
- switch (pObj->GetType()) {
- case CPDF_PageObject::TEXT:
- bRet = ProcessText(pObj->AsText(), pObj2Device, NULL);
- break;
- case CPDF_PageObject::PATH:
- bRet = ProcessPath(pObj->AsPath(), pObj2Device);
- break;
- case CPDF_PageObject::IMAGE:
- bRet = ProcessImage(pObj->AsImage(), pObj2Device);
- break;
- case CPDF_PageObject::SHADING:
- bRet = ProcessShading(pObj->AsShading(), pObj2Device);
- break;
- case CPDF_PageObject::FORM:
- bRet = ProcessForm(pObj->AsForm(), pObj2Device);
- break;
- }
- if (!bRet) {
- DrawObjWithBackground(pObj, pObj2Device);
- }
-}
-FX_BOOL CPDF_RenderStatus::DrawObjWithBlend(const CPDF_PageObject* pObj,
- const CFX_Matrix* pObj2Device) {
- FX_BOOL bRet = FALSE;
- switch (pObj->GetType()) {
- case CPDF_PageObject::PATH:
- bRet = ProcessPath(pObj->AsPath(), pObj2Device);
- break;
- case CPDF_PageObject::IMAGE:
- bRet = ProcessImage(pObj->AsImage(), pObj2Device);
- break;
- case CPDF_PageObject::FORM:
- bRet = ProcessForm(pObj->AsForm(), pObj2Device);
- break;
- default:
- 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_Matrix* pObj2Device) {
- FX_RECT rect;
- if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
- return;
- }
- int res = 300;
- if (pObj->IsImage() &&
- 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_Matrix matrix = *pObj2Device;
- matrix.Concat(*buffer.GetMatrix());
- GetScaledMatrix(matrix);
- CPDF_Dictionary* pFormResource = NULL;
- if (pObj->IsForm()) {
- const CPDF_FormObject* pFormObj = pObj->AsForm();
- if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
- pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictBy("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(const CPDF_FormObject* pFormObj,
- const CFX_Matrix* pObj2Device) {
- CPDF_Dictionary* pOC = pFormObj->m_pForm->m_pFormDict->GetDictBy("OC");
- if (pOC && m_Options.m_pOCContext &&
- !m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
- return TRUE;
- }
- CFX_Matrix 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->GetDictBy("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_Matrix& 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(const CPDF_PathObject* pPathObj,
- const CFX_Matrix* 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_Matrix 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);
- CPDF_DocRenderData* pDocCache = m_pContext->GetDocument()->GetRenderData();
- return pDocCache ? pDocCache->GetTransferFunc(pObj) : nullptr;
-}
-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;
- }
- 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 = (int32_t)(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;
- }
- 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 = (int32_t)(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_Matrix* pObj2Device) {
- if (ClipPath.IsNull()) {
- if (!m_LastClipPath.IsNull()) {
- m_pDevice->RestoreState(TRUE);
- m_LastClipPath.SetNull();
- }
- return;
- }
- if (m_LastClipPath == ClipPath)
- return;
-
- m_LastClipPath = ClipPath;
- m_pDevice->RestoreState(TRUE);
- int nClipPath = ClipPath.GetPathCount();
- for (int i = 0; i < nClipPath; ++i) {
- const CFX_PathData* pPathData = ClipPath.GetPath(i);
- if (!pPathData)
- continue;
-
- if (pPathData->GetPointCount() == 0) {
- CFX_PathData EmptyPath;
- EmptyPath.AppendRect(-1, -1, 0, 0);
- int fill_mode = FXFILL_WINDING;
- m_pDevice->SetClip_PathFill(&EmptyPath, nullptr, 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;
- }
-
- std::unique_ptr<CFX_PathData> pTextClippingPath;
- for (int i = 0; i < textcount; ++i) {
- CPDF_TextObject* pText = ClipPath.GetText(i);
- if (pText) {
- if (!pTextClippingPath)
- pTextClippingPath.reset(new CFX_PathData);
- ProcessText(pText, pObj2Device, pTextClippingPath.get());
- continue;
- }
-
- if (!pTextClippingPath)
- continue;
-
- int fill_mode = FXFILL_WINDING;
- if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH)
- fill_mode |= FXFILL_NOPATHSMOOTH;
- m_pDevice->SetClip_PathFill(pTextClippingPath.get(), nullptr, fill_mode);
- pTextClippingPath.reset();
- }
-}
-
-void CPDF_RenderStatus::DrawClipPath(CPDF_ClipPath ClipPath,
- const CFX_Matrix* 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) {
- 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(const CPDF_PathObject* pPathObj,
- const CFX_Matrix* pObj2Device,
- FX_BOOL bStroke) {
- CFX_Matrix 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_Matrix* 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 ? ToDictionary(pGeneralState->m_pSoftMask) : NULL;
- if (pSMaskDict) {
- if (pPageObj->IsImage() &&
- pPageObj->AsImage()->m_pImage->GetDict()->KeyExist("SMask")) {
- pSMaskDict = NULL;
- }
- }
- CPDF_Dictionary* pFormResource = NULL;
- FX_FLOAT group_alpha = 1.0f;
- int Transparency = m_Transparency;
- FX_BOOL bGroupTransparent = FALSE;
- if (pPageObj->IsForm()) {
- const CPDF_FormObject* pFormObj = pPageObj->AsForm();
- 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);
- if (pFormObj->m_pForm->m_pFormDict) {
- pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictBy("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->IsImage() &&
- pGeneralState && pGeneralState->m_FillOP && pGeneralState->m_StrokeOP) {
- CPDF_Document* pDocument = NULL;
- CPDF_Page* pPage = NULL;
- if (m_pContext->GetPageCache()) {
- pPage = m_pContext->GetPageCache()->GetPage();
- pDocument = pPage->m_pDocument;
- } else {
- pDocument = pPageObj->AsImage()->m_pImage->GetDocument();
- }
- CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
- CPDF_Object* pCSObj =
- pPageObj->AsImage()->m_pImage->GetStream()->GetDict()->GetElementValue(
- "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 && 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;
- std::unique_ptr<CFX_DIBitmap> oriDevice;
- if (!isolated && (m_pDevice->GetRenderCaps() & FXRC_GET_BITS)) {
- oriDevice.reset(new CFX_DIBitmap);
- if (!m_pDevice->CreateCompatibleBitmap(oriDevice.get(), width, height))
- return TRUE;
-
- m_pDevice->GetDIBits(oriDevice.get(), rect.left, rect.top);
- }
- if (!bitmap_device.Create(width, height, FXDIB_Argb, 0, oriDevice.get()))
- return TRUE;
-
- CFX_DIBitmap* bitmap = bitmap_device.GetBitmap();
- bitmap->Clear(0);
- CFX_Matrix new_matrix = *pObj2Device;
- new_matrix.TranslateI(-rect.left, -rect.top);
- new_matrix.Scale(scaleX, scaleY);
- std::unique_ptr<CFX_DIBitmap> pTextMask;
- if (bTextClip) {
- pTextMask.reset(new CFX_DIBitmap);
- if (!pTextMask->Create(width, height, FXDIB_8bppMask))
- return TRUE;
-
- pTextMask->Clear(0);
- CFX_FxgeDevice text_device;
- text_device.Attach(pTextMask.get());
- for (FX_DWORD i = 0; i < pPageObj->m_ClipPath.GetTextCount(); i++) {
- CPDF_TextObject* textobj = pPageObj->m_ClipPath.GetText(i);
- if (!textobj) {
- break;
- }
- CFX_Matrix 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_Matrix smask_matrix;
- FXSYS_memcpy(&smask_matrix, pGeneralState->m_SMaskMatrix,
- sizeof smask_matrix);
- smask_matrix.Concat(*pObj2Device);
- std::unique_ptr<CFX_DIBSource> pSMaskSource(
- LoadSMask(pSMaskDict, &rect, &smask_matrix));
- if (pSMaskSource)
- bitmap->MultiplyAlpha(pSMaskSource.get());
- }
- if (pTextMask) {
- bitmap->MultiplyAlpha(pTextMask.get());
- pTextMask.reset();
- }
- if (Transparency & PDFTRANS_GROUP && group_alpha != 1.0f) {
- bitmap->MultiplyAlpha((int32_t)(group_alpha * 255));
- }
- Transparency = m_Transparency;
- if (pPageObj->IsForm()) {
- Transparency |= PDFTRANS_GROUP;
- }
- CompositeDIBitmap(bitmap, rect.left, rect.top, 0, 255, blend_type,
- Transparency);
- 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);
- std::unique_ptr<CFX_DIBitmap> pBackdrop(new CFX_DIBitmap);
- if (bBackAlphaRequired && !m_bDropObjects)
- pBackdrop->Create(width, height, FXDIB_Argb);
- else
- m_pDevice->CreateCompatibleBitmap(pBackdrop.get(), width, height);
-
- if (!pBackdrop->GetBuffer())
- return nullptr;
-
- 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.get(), left, top);
- return pBackdrop.release();
- }
-
- CFX_Matrix FinalMatrix = m_DeviceMatrix;
- FinalMatrix.TranslateI(-left, -top);
- FinalMatrix.Scale(scaleX, scaleY);
- pBackdrop->Clear(pBackdrop->HasAlpha() ? 0 : 0xffffffff);
- CFX_FxgeDevice device;
- device.Attach(pBackdrop.get());
- m_pContext->Render(&device, pObj, &m_Options, &FinalMatrix);
- return pBackdrop.release();
-}
-
-void CPDF_RenderContext::GetBackground(CFX_DIBitmap* pBuffer,
- const CPDF_PageObject* pObj,
- const CPDF_RenderOptions* pOptions,
- CFX_Matrix* pFinalMatrix) {
- CFX_FxgeDevice device;
- device.Attach(pBuffer);
-
- 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 = new CPDF_GraphicStates;
- 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(CPDF_Page* pPage)
- : m_pDocument(pPage->m_pDocument),
- m_pPageResources(pPage->m_pPageResources),
- m_pPageCache(pPage->GetRenderCache()),
- m_bFirstLayer(TRUE) {}
-
-CPDF_RenderContext::CPDF_RenderContext(CPDF_Document* pDoc,
- CPDF_PageRenderCache* pPageCache)
- : m_pDocument(pDoc),
- m_pPageResources(nullptr),
- m_pPageCache(pPageCache),
- m_bFirstLayer(TRUE) {}
-
-CPDF_RenderContext::~CPDF_RenderContext() {}
-
-void CPDF_RenderContext::AppendLayer(CPDF_PageObjectHolder* pObjectHolder,
- const CFX_Matrix* pObject2Device) {
- Layer* pLayer = m_Layers.AddSpace();
- pLayer->m_pObjectHolder = pObjectHolder;
- if (pObject2Device) {
- pLayer->m_Matrix = *pObject2Device;
- } else {
- pLayer->m_Matrix.SetIdentity();
- }
-}
-void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice,
- const CPDF_RenderOptions* pOptions,
- const CFX_Matrix* pLastMatrix) {
- Render(pDevice, NULL, pOptions, pLastMatrix);
-}
-void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice,
- const CPDF_PageObject* pStopObj,
- const CPDF_RenderOptions* pOptions,
- const CFX_Matrix* pLastMatrix) {
- int count = m_Layers.GetSize();
- for (int j = 0; j < count; j++) {
- pDevice->SaveState();
- Layer* pLayer = m_Layers.GetDataPtr(j);
- if (pLastMatrix) {
- CFX_Matrix FinalMatrix = pLayer->m_Matrix;
- FinalMatrix.Concat(*pLastMatrix);
- CPDF_RenderStatus status;
- status.Initialize(this, pDevice, pLastMatrix, pStopObj, NULL, NULL,
- pOptions, pLayer->m_pObjectHolder->m_Transparency,
- FALSE, NULL);
- status.RenderObjectList(pLayer->m_pObjectHolder, &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,
- pLayer->m_pObjectHolder->m_Transparency, FALSE, NULL);
- status.RenderObjectList(pLayer->m_pObjectHolder, &pLayer->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();
- }
-}
-
-CPDF_ProgressiveRenderer::CPDF_ProgressiveRenderer(
- CPDF_RenderContext* pContext,
- CFX_RenderDevice* pDevice,
- const CPDF_RenderOptions* pOptions)
- : m_Status(Ready),
- m_pContext(pContext),
- m_pDevice(pDevice),
- m_pOptions(pOptions),
- m_LayerIndex(0),
- m_pCurrentLayer(nullptr) {}
-
-CPDF_ProgressiveRenderer::~CPDF_ProgressiveRenderer() {
- if (m_pRenderStatus)
- m_pDevice->RestoreState();
-}
-
-void CPDF_ProgressiveRenderer::Start(IFX_Pause* pPause) {
- if (!m_pContext || !m_pDevice || m_Status != Ready) {
- m_Status = Failed;
- return;
- }
- m_Status = ToBeContinued;
- Continue(pPause);
-}
-
-void CPDF_ProgressiveRenderer::Continue(IFX_Pause* pPause) {
- while (m_Status == ToBeContinued) {
- if (!m_pCurrentLayer) {
- if (m_LayerIndex >= m_pContext->CountLayers()) {
- m_Status = Done;
- return;
- }
- m_pCurrentLayer = m_pContext->GetLayer(m_LayerIndex);
- m_LastObjectRendered =
- m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
- m_pRenderStatus.reset(new CPDF_RenderStatus());
- m_pRenderStatus->Initialize(
- m_pContext, m_pDevice, NULL, NULL, NULL, NULL, m_pOptions,
- m_pCurrentLayer->m_pObjectHolder->m_Transparency, FALSE, NULL);
- m_pDevice->SaveState();
- m_ClipRect = CFX_FloatRect(m_pDevice->GetClipBox());
- CFX_Matrix device2object;
- device2object.SetReverse(m_pCurrentLayer->m_Matrix);
- device2object.TransformRect(m_ClipRect);
- }
- CPDF_PageObjectList::iterator iter;
- CPDF_PageObjectList::iterator iterEnd =
- m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
- if (m_LastObjectRendered != iterEnd) {
- iter = m_LastObjectRendered;
- ++iter;
- } else {
- iter = m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->begin();
- }
- int nObjsToGo = kStepLimit;
- while (iter != iterEnd) {
- CPDF_PageObject* pCurObj = iter->get();
- 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_pRenderStatus->ContinueSingleObject(
- pCurObj, &m_pCurrentLayer->m_Matrix, pPause)) {
- return;
- }
- if (pCurObj->IsImage() &&
- m_pRenderStatus->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
- m_pContext->GetPageCache()->CacheOptimization(
- m_pRenderStatus->m_Options.m_dwLimitCacheSize);
- }
- if (pCurObj->IsForm() || pCurObj->IsShading()) {
- nObjsToGo = 0;
- } else {
- --nObjsToGo;
- }
- }
- m_LastObjectRendered = iter;
- if (nObjsToGo == 0) {
- if (pPause && pPause->NeedToPauseNow())
- return;
- nObjsToGo = kStepLimit;
- }
- ++iter;
- }
- if (m_pCurrentLayer->m_pObjectHolder->IsParsed()) {
- m_pRenderStatus.reset();
- m_pDevice->RestoreState();
- m_pCurrentLayer = nullptr;
- m_LayerIndex++;
- if (pPause && pPause->NeedToPauseNow()) {
- return;
- }
- } else {
- m_pCurrentLayer->m_pObjectHolder->ContinueParse(pPause);
- if (!m_pCurrentLayer->m_pObjectHolder->IsParsed())
- return;
- }
- }
-}
-
-CPDF_TransferFunc* CPDF_DocRenderData::GetTransferFunc(CPDF_Object* pObj) {
- if (!pObj)
- return nullptr;
-
- auto it = m_TransferFuncMap.find(pObj);
- if (it != m_TransferFuncMap.end()) {
- CPDF_CountedObject<CPDF_TransferFunc>* pTransferCounter = it->second;
- return pTransferCounter->AddRef();
- }
-
- std::unique_ptr<CPDF_Function> pFuncs[3];
- FX_BOOL bUniTransfer = TRUE;
- FX_BOOL bIdentity = TRUE;
- if (CPDF_Array* pArray = pObj->AsArray()) {
- bUniTransfer = FALSE;
- if (pArray->GetCount() < 3)
- return nullptr;
-
- for (FX_DWORD i = 0; i < 3; ++i) {
- pFuncs[2 - i].reset(CPDF_Function::Load(pArray->GetElementValue(i)));
- if (!pFuncs[2 - i])
- return nullptr;
- }
- } else {
- pFuncs[0].reset(CPDF_Function::Load(pObj));
- if (!pFuncs[0])
- return nullptr;
- }
- CPDF_TransferFunc* pTransfer = new CPDF_TransferFunc(m_pPDFDoc);
- CPDF_CountedObject<CPDF_TransferFunc>* pTransferCounter =
- new CPDF_CountedObject<CPDF_TransferFunc>(pTransfer);
- m_TransferFuncMap[pObj] = pTransferCounter;
- static const int kMaxOutputs = 16;
- FX_FLOAT output[kMaxOutputs];
- FXSYS_memset(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 (int i = 0; i < 3; ++i) {
- pTransfer->m_Samples[i * 256 + v] = o;
- }
- } else {
- for (int 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;
- }
- }
- }
- }
-
- pTransfer->m_bIdentity = bIdentity;
- return pTransferCounter->AddRef();
-}
-
-void CPDF_DocRenderData::ReleaseTransferFunc(CPDF_Object* pObj) {
- auto it = m_TransferFuncMap.find(pObj);
- if (it != m_TransferFuncMap.end())
- it->second->RemoveRef();
-}
-
-CPDF_DeviceBuffer::CPDF_DeviceBuffer()
- : m_pDevice(nullptr), m_pContext(nullptr), m_pObject(nullptr) {}
-
-CPDF_DeviceBuffer::~CPDF_DeviceBuffer() {
-}
-
-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.reset(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.get(), m_Rect.left, m_Rect.top);
- } else {
- m_pDevice->StretchDIBits(m_pBitmap.get(), 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.get(), 0, 0);
- m_pDevice->StretchDIBits(&buffer, m_Rect.left, m_Rect.top, m_Rect.Width(),
- m_Rect.Height());
- }
-}
-
-CPDF_ScaledRenderBuffer::CPDF_ScaledRenderBuffer() {}
-
-CPDF_ScaledRenderBuffer::~CPDF_ScaledRenderBuffer() {}
-
-#define _FPDFAPI_IMAGESIZE_LIMIT_ (30 * 1024 * 1024)
-FX_BOOL CPDF_ScaledRenderBuffer::Initialize(CPDF_RenderContext* pContext,
- CFX_RenderDevice* pDevice,
- const FX_RECT& pRect,
- const CPDF_PageObject* pObj,
- const CPDF_RenderOptions* pOptions,
- int max_dpi) {
- 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.reset(new CFX_FxgeDevice);
- FXDIB_Format dibFormat = FXDIB_Rgb;
- int32_t bpp = 24;
- if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_ALPHA_OUTPUT) {
- dibFormat = FXDIB_Argb;
- bpp = 32;
- }
- while (1) {
- CFX_FloatRect rect(pRect);
- m_Matrix.TransformRect(rect);
- FX_RECT bitmap_rect = rect.GetOutterRect();
- int32_t iWidth = bitmap_rect.Width();
- int32_t iHeight = bitmap_rect.Height();
- int32_t 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++) {
- const CPDF_ContentMarkItem& item = pData->GetItem(i);
- if (item.GetName() == "OC" &&
- item.GetParamType() == CPDF_ContentMarkItem::PropertiesDict &&
- !CheckOCGVisible(item.GetParam())) {
- return FALSE;
- }
- }
- return TRUE;
-}
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