| // 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_module.h" |
| #include "../../../include/fpdfapi/fpdf_render.h" |
| #include "../../../include/fxge/fx_ge.h" |
| #include "../fpdf_page/pageint.h" |
| #include "render_int.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_RenderConfig* GetConfig() override |
| { |
| return &m_RenderConfig; |
| } |
| |
| CPDF_DocRenderData m_RenderData; |
| CPDF_RenderConfig m_RenderConfig; |
| }; |
| |
| 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_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() |
| { |
| 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) |
| { |
| if (type != PDFPAGE_IMAGE) { |
| return NULL; |
| } |
| return new CPDF_ImageRenderer; |
| } |
| 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 + (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_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 = (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; |
| } 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 = (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_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 = new CFX_PathData; |
| } |
| ProcessText(pText, pObj2Device, 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 = 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 = 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_memcpy(&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((int32_t)(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); |
| 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 = 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); |
| |
| 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() |
| { |
| } |
| void CPDF_RenderContext::Create(CPDF_Document* pDoc, CPDF_PageRenderCache* pPageCache, |
| CPDF_Dictionary* pPageResources, FX_BOOL bFirstLayer) |
| { |
| m_pDocument = pDoc; |
| m_pPageResources = pPageResources; |
| m_pPageCache = pPageCache; |
| m_bFirstLayer = bFirstLayer; |
| } |
| void CPDF_RenderContext::Create(CPDF_Page* pPage, FX_BOOL bFirstLayer) |
| { |
| 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_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 = 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) |
| return nullptr; |
| |
| auto it = m_TransferFuncMap.find(pObj); |
| if (it != m_TransferFuncMap.end()) { |
| CPDF_CountedObject<CPDF_TransferFunc>* pTransferCounter = it->second; |
| return pTransferCounter->AddRef(); |
| } |
| |
| CPDF_Function* pFuncs[3] = { nullptr, nullptr, nullptr }; |
| FX_BOOL bUniTransfer = TRUE; |
| FX_BOOL bIdentity = TRUE; |
| if (pObj->GetType() == PDFOBJ_ARRAY) { |
| bUniTransfer = FALSE; |
| CPDF_Array* pArray = (CPDF_Array*)pObj; |
| if (pArray->GetCount() < 3) |
| return nullptr; |
| |
| for (FX_DWORD i = 0; i < 3; ++i) { |
| pFuncs[2 - i] = CPDF_Function::Load(pArray->GetElementValue(i)); |
| if (!pFuncs[2 - i]) { |
| return nullptr; |
| } |
| } |
| } else { |
| pFuncs[0] = CPDF_Function::Load(pObj); |
| if (!pFuncs[0]) { |
| return nullptr; |
| } |
| } |
| CPDF_TransferFunc* pTransfer = new CPDF_TransferFunc; |
| pTransfer->m_pPDFDoc = 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; |
| } |
| } |
| } |
| } |
| for (int i = 0; i < 3; ++i) |
| delete pFuncs[i]; |
| |
| 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_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() |
| { |
| 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 = 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() |
| { |
| 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 = 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; |
| } |
| CFX_FloatRect rect; |
| int32_t 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; |
| } |
