| // 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/fpdfapi/render/render_int.h" |
| |
| #include <memory> |
| |
| #include "core/fpdfapi/cpdf_modulemgr.h" |
| #include "core/fpdfapi/font/cpdf_type3char.h" |
| #include "core/fpdfapi/font/cpdf_type3font.h" |
| #include "core/fpdfapi/page/cpdf_docpagedata.h" |
| #include "core/fpdfapi/page/cpdf_form.h" |
| #include "core/fpdfapi/page/cpdf_formobject.h" |
| #include "core/fpdfapi/page/cpdf_graphicstates.h" |
| #include "core/fpdfapi/page/cpdf_image.h" |
| #include "core/fpdfapi/page/cpdf_imageobject.h" |
| #include "core/fpdfapi/page/cpdf_page.h" |
| #include "core/fpdfapi/page/cpdf_pageobject.h" |
| #include "core/fpdfapi/page/cpdf_pathobject.h" |
| #include "core/fpdfapi/page/cpdf_textobject.h" |
| #include "core/fpdfapi/page/pageint.h" |
| #include "core/fpdfapi/parser/cpdf_array.h" |
| #include "core/fpdfapi/parser/cpdf_dictionary.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fpdfapi/render/cpdf_pagerendercache.h" |
| #include "core/fpdfapi/render/cpdf_progressiverenderer.h" |
| #include "core/fpdfapi/render/cpdf_renderoptions.h" |
| #include "core/fpdfapi/render/cpdf_textrenderer.h" |
| #include "core/fpdfapi/render/cpdf_type3cache.h" |
| #include "core/fpdfdoc/cpdf_occontext.h" |
| #include "core/fxge/cfx_fxgedevice.h" |
| #include "core/fxge/cfx_graphstatedata.h" |
| #include "core/fxge/cfx_pathdata.h" |
| #include "core/fxge/cfx_renderdevice.h" |
| |
| CPDF_DocRenderData::CPDF_DocRenderData(CPDF_Document* pPDFDoc) |
| : m_pPDFDoc(pPDFDoc) {} |
| |
| 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); |
| } |
| } |
| } |
| |
| 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(); |
| } |
| |
| CPDF_RenderOptions::CPDF_RenderOptions() |
| : m_ColorMode(RENDER_COLOR_NORMAL), |
| m_Flags(RENDER_CLEARTYPE), |
| m_Interpolation(0), |
| m_AddFlags(0), |
| m_pOCContext(nullptr), |
| m_dwLimitCacheSize(1024 * 1024 * 100), |
| m_HalftoneLimit(-1), |
| m_bDrawAnnots(false) {} |
| |
| CPDF_RenderOptions::CPDF_RenderOptions(const CPDF_RenderOptions& rhs) |
| : m_ColorMode(rhs.m_ColorMode), |
| m_BackColor(rhs.m_BackColor), |
| m_ForeColor(rhs.m_ForeColor), |
| m_Flags(rhs.m_Flags), |
| m_Interpolation(rhs.m_Interpolation), |
| m_AddFlags(rhs.m_AddFlags), |
| m_pOCContext(rhs.m_pOCContext), |
| m_dwLimitCacheSize(rhs.m_dwLimitCacheSize), |
| m_HalftoneLimit(rhs.m_HalftoneLimit), |
| m_bDrawAnnots(rhs.m_bDrawAnnots) {} |
| |
| 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_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, |
| uint32_t GroupFamily, |
| FX_BOOL bLoadMask) { |
| m_pContext = pContext; |
| m_pDevice = pDevice; |
| 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) { |
| if (!m_InitialStates.m_ColorState.HasFillColor()) { |
| m_InitialStates.m_ColorState.SetFillRGB( |
| pParentState->m_InitialStates.m_ColorState.GetFillRGB()); |
| m_InitialStates.m_ColorState.GetMutableFillColor()->Copy( |
| pParentState->m_InitialStates.m_ColorState.GetFillColor()); |
| } |
| if (!m_InitialStates.m_ColorState.HasStrokeColor()) { |
| m_InitialStates.m_ColorState.SetStrokeRGB( |
| pParentState->m_InitialStates.m_ColorState.GetFillRGB()); |
| m_InitialStates.m_ColorState.GetMutableStrokeColor()->Copy( |
| pParentState->m_InitialStates.m_ColorState.GetStrokeColor()); |
| } |
| } |
| } else { |
| m_InitialStates.DefaultStates(); |
| } |
| m_pImageRenderer.reset(); |
| m_Transparency = transparency; |
| return TRUE; |
| } |
| void CPDF_RenderStatus::RenderObjectList( |
| const CPDF_PageObjectHolder* pObjectHolder, |
| const CFX_Matrix* pObj2Device) { |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| 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; |
| } |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| } |
| |
| void CPDF_RenderStatus::RenderSingleObject(CPDF_PageObject* pObj, |
| const CFX_Matrix* pObj2Device) { |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| CFX_AutoRestorer<int> restorer(&s_CurrentRecursionDepth); |
| if (++s_CurrentRecursionDepth > kRenderMaxRecursionDepth) { |
| return; |
| } |
| m_pCurObj = pObj; |
| if (m_Options.m_pOCContext && pObj->m_ContentMark) { |
| if (!m_Options.m_pOCContext->CheckObjectVisible(pObj)) { |
| return; |
| } |
| } |
| ProcessClipPath(pObj->m_ClipPath, pObj2Device); |
| if (ProcessTransparency(pObj, pObj2Device)) { |
| return; |
| } |
| ProcessObjectNoClip(pObj, pObj2Device); |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| } |
| |
| FX_BOOL CPDF_RenderStatus::ContinueSingleObject(CPDF_PageObject* pObj, |
| const CFX_Matrix* pObj2Device, |
| IFX_Pause* pPause) { |
| if (m_pImageRenderer) { |
| if (m_pImageRenderer->Continue(pPause)) |
| return TRUE; |
| |
| if (!m_pImageRenderer->m_Result) |
| DrawObjWithBackground(pObj, pObj2Device); |
| m_pImageRenderer.reset(); |
| return FALSE; |
| } |
| |
| m_pCurObj = pObj; |
| if (m_Options.m_pOCContext && pObj->m_ContentMark && |
| !m_Options.m_pOCContext->CheckObjectVisible(pObj)) { |
| return FALSE; |
| } |
| |
| ProcessClipPath(pObj->m_ClipPath, pObj2Device); |
| if (ProcessTransparency(pObj, pObj2Device)) |
| return FALSE; |
| |
| if (pObj->IsImage()) { |
| m_pImageRenderer.reset(new CPDF_ImageRenderer); |
| if (!m_pImageRenderer->Start(this, pObj, pObj2Device, FALSE)) { |
| if (!m_pImageRenderer->m_Result) |
| DrawObjWithBackground(pObj, pObj2Device); |
| m_pImageRenderer.reset(); |
| return FALSE; |
| } |
| return ContinueSingleObject(pObj, pObj2Device, pPause); |
| } |
| |
| ProcessObjectNoClip(pObj, pObj2Device); |
| return FALSE; |
| } |
| |
| 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::ProcessObjectNoClip(CPDF_PageObject* pObj, |
| const CFX_Matrix* pObj2Device) { |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| FX_BOOL bRet = FALSE; |
| switch (pObj->GetType()) { |
| case CPDF_PageObject::TEXT: |
| bRet = ProcessText(pObj->AsText(), pObj2Device, nullptr); |
| 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: |
| ProcessShading(pObj->AsShading(), pObj2Device); |
| return; |
| case CPDF_PageObject::FORM: |
| bRet = ProcessForm(pObj->AsForm(), pObj2Device); |
| break; |
| } |
| if (!bRet) |
| DrawObjWithBackground(pObj, pObj2Device); |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| } |
| |
| FX_BOOL CPDF_RenderStatus::DrawObjWithBlend(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(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 = nullptr; |
| if (pObj->IsForm()) { |
| const CPDF_FormObject* pFormObj = pObj->AsForm(); |
| if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) { |
| pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictFor("Resources"); |
| } |
| } |
| CPDF_RenderStatus status; |
| status.Initialize(m_pContext, buffer.GetDevice(), buffer.GetMatrix(), nullptr, |
| nullptr, nullptr, &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) { |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| CPDF_Dictionary* pOC = pFormObj->m_pForm->m_pFormDict->GetDictFor("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 = nullptr; |
| if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) { |
| pResources = pFormObj->m_pForm->m_pFormDict->GetDictFor("Resources"); |
| } |
| CPDF_RenderStatus status; |
| status.Initialize(m_pContext, m_pDevice, nullptr, 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.get(), &matrix); |
| m_bStopped = status.m_bStopped; |
| m_pDevice->RestoreState(false); |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| 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(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; |
| |
| uint32_t fill_argb = FillType ? GetFillArgb(pPathObj) : 0; |
| uint32_t stroke_argb = bStroke ? GetStrokeArgb(pPathObj) : 0; |
| 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_PageObject* pPageObj = |
| static_cast<const CPDF_PageObject*>(pPathObj); |
| if (pPageObj->m_GeneralState.GetStrokeAdjust()) |
| FillType |= FX_STROKE_ADJUST; |
| if (m_pType3Char) |
| FillType |= FX_FILL_TEXT_MODE; |
| |
| CFX_GraphState graphState = pPathObj->m_GraphState; |
| if (m_Options.m_Flags & RENDER_THINLINE) |
| graphState.SetLineWidth(0); |
| return m_pDevice->DrawPathWithBlend( |
| pPathObj->m_Path.GetObject(), &path_matrix, graphState.GetObject(), |
| fill_argb, stroke_argb, FillType, 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(CPDF_PageObject* pObj, |
| FX_BOOL bType3) const { |
| const CPDF_ColorState* pColorState = &pObj->m_ColorState; |
| if (m_pType3Char && !bType3 && |
| (!m_pType3Char->m_bColored || |
| (m_pType3Char->m_bColored && |
| (!*pColorState || pColorState->GetFillColor()->IsNull())))) { |
| return m_T3FillColor; |
| } |
| if (!*pColorState || pColorState->GetFillColor()->IsNull()) |
| pColorState = &m_InitialStates.m_ColorState; |
| |
| FX_COLORREF rgb = pColorState->GetFillRGB(); |
| if (rgb == (uint32_t)-1) |
| return 0; |
| |
| int32_t alpha = |
| static_cast<int32_t>((pObj->m_GeneralState.GetFillAlpha() * 255)); |
| if (pObj->m_GeneralState.GetTR()) { |
| if (!pObj->m_GeneralState.GetTransferFunc()) { |
| pObj->m_GeneralState.SetTransferFunc( |
| GetTransferFunc(pObj->m_GeneralState.GetTR())); |
| } |
| if (pObj->m_GeneralState.GetTransferFunc()) |
| rgb = pObj->m_GeneralState.GetTransferFunc()->TranslateColor(rgb); |
| } |
| return m_Options.TranslateColor(ArgbEncode(alpha, rgb)); |
| } |
| |
| FX_ARGB CPDF_RenderStatus::GetStrokeArgb(CPDF_PageObject* pObj) const { |
| const CPDF_ColorState* pColorState = &pObj->m_ColorState; |
| if (m_pType3Char && |
| (!m_pType3Char->m_bColored || |
| (m_pType3Char->m_bColored && |
| (!*pColorState || pColorState->GetStrokeColor()->IsNull())))) { |
| return m_T3FillColor; |
| } |
| if (!*pColorState || pColorState->GetStrokeColor()->IsNull()) |
| pColorState = &m_InitialStates.m_ColorState; |
| |
| FX_COLORREF rgb = pColorState->GetStrokeRGB(); |
| if (rgb == (uint32_t)-1) |
| return 0; |
| |
| int32_t alpha = static_cast<int32_t>(pObj->m_GeneralState.GetStrokeAlpha() * |
| 255); // not rounded. |
| if (pObj->m_GeneralState.GetTR()) { |
| if (!pObj->m_GeneralState.GetTransferFunc()) { |
| pObj->m_GeneralState.SetTransferFunc( |
| GetTransferFunc(pObj->m_GeneralState.GetTR())); |
| } |
| if (pObj->m_GeneralState.GetTransferFunc()) |
| rgb = pObj->m_GeneralState.GetTransferFunc()->TranslateColor(rgb); |
| } |
| return m_Options.TranslateColor(ArgbEncode(alpha, rgb)); |
| } |
| void CPDF_RenderStatus::ProcessClipPath(CPDF_ClipPath ClipPath, |
| const CFX_Matrix* pObj2Device) { |
| if (!ClipPath) { |
| if (m_LastClipPath) { |
| 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).GetObject(); |
| 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) |
| 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).GetObject(); |
| 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_GraphState graphState = pPathObj->m_GraphState; |
| if (m_Options.m_Flags & RENDER_THINLINE) |
| graphState.SetLineWidth(0); |
| return m_pDevice->SetClip_PathStroke(pPathObj->m_Path.GetObject(), |
| &path_matrix, graphState.GetObject()); |
| } |
| 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.GetObject(), &path_matrix, |
| fill_mode); |
| } |
| FX_BOOL CPDF_RenderStatus::ProcessTransparency(CPDF_PageObject* pPageObj, |
| const CFX_Matrix* pObj2Device) { |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| int blend_type = pPageObj->m_GeneralState.GetBlendType(); |
| if (blend_type == FXDIB_BLEND_UNSUPPORTED) |
| return TRUE; |
| |
| CPDF_Dictionary* pSMaskDict = |
| ToDictionary(pPageObj->m_GeneralState.GetSoftMask()); |
| if (pSMaskDict) { |
| if (pPageObj->IsImage() && |
| pPageObj->AsImage()->GetImage()->GetDict()->KeyExist("SMask")) { |
| pSMaskDict = nullptr; |
| } |
| } |
| CPDF_Dictionary* pFormResource = nullptr; |
| FX_FLOAT group_alpha = 1.0f; |
| int Transparency = m_Transparency; |
| FX_BOOL bGroupTransparent = FALSE; |
| if (pPageObj->IsForm()) { |
| const CPDF_FormObject* pFormObj = pPageObj->AsForm(); |
| group_alpha = pFormObj->m_GeneralState.GetFillAlpha(); |
| Transparency = pFormObj->m_pForm->m_Transparency; |
| bGroupTransparent = !!(Transparency & PDFTRANS_ISOLATED); |
| if (pFormObj->m_pForm->m_pFormDict) { |
| pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictFor("Resources"); |
| } |
| } |
| bool bTextClip = |
| (pPageObj->m_ClipPath && pPageObj->m_ClipPath.GetTextCount() && |
| m_pDevice->GetDeviceClass() == FXDC_DISPLAY && |
| !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)); |
| if ((m_Options.m_Flags & RENDER_OVERPRINT) && pPageObj->IsImage() && |
| pPageObj->m_GeneralState.GetFillOP() && |
| pPageObj->m_GeneralState.GetStrokeOP()) { |
| CPDF_Document* pDocument = nullptr; |
| CPDF_Page* pPage = nullptr; |
| if (m_pContext->GetPageCache()) { |
| pPage = m_pContext->GetPageCache()->GetPage(); |
| pDocument = pPage->m_pDocument; |
| } else { |
| pDocument = pPageObj->AsImage()->GetImage()->GetDocument(); |
| } |
| CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr; |
| CPDF_Object* pCSObj = pPageObj->AsImage() |
| ->GetImage() |
| ->GetStream() |
| ->GetDict() |
| ->GetDirectObjectFor("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; |
| } |
| 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, 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(), false, nullptr, false); |
| for (uint32_t 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.GetObject(), (FX_ARGB)-1, 0, nullptr, 0); |
| } |
| } |
| CPDF_RenderStatus bitmap_render; |
| bitmap_render.Initialize(m_pContext, &bitmap_device, nullptr, m_pStopObj, |
| nullptr, nullptr, &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 = *pPageObj->m_GeneralState.GetSMaskMatrix(); |
| 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(); |
| } |
| int32_t blitAlpha = 255; |
| if (Transparency & PDFTRANS_GROUP && group_alpha != 1.0f) { |
| blitAlpha = (int32_t)(group_alpha * 255); |
| #ifndef _SKIA_SUPPORT_ |
| bitmap->MultiplyAlpha(blitAlpha); |
| blitAlpha = 255; |
| #endif |
| } |
| Transparency = m_Transparency; |
| if (pPageObj->IsForm()) { |
| Transparency |= PDFTRANS_GROUP; |
| } |
| CompositeDIBitmap(bitmap, rect.left, rect.top, 0, blitAlpha, blend_type, |
| Transparency); |
| #if defined _SKIA_SUPPORT_ |
| DebugVerifyDeviceIsPreMultiplied(); |
| #endif |
| 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(), false, nullptr, false); |
| 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, false, nullptr, false); |
| |
| 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 nullptr; |
| |
| CPDF_GraphicStates* pStates = new CPDF_GraphicStates; |
| pStates->CopyStates(*pSrcStates); |
| const CPDF_Color* pObjColor = bStroke |
| ? pSrcStates->m_ColorState.GetStrokeColor() |
| : pSrcStates->m_ColorState.GetFillColor(); |
| if (!pObjColor->IsNull()) { |
| pStates->m_ColorState.SetFillRGB( |
| bStroke ? pSrcStates->m_ColorState.GetStrokeRGB() |
| : pSrcStates->m_ColorState.GetFillRGB()); |
| pStates->m_ColorState.SetStrokeRGB(pStates->m_ColorState.GetFillRGB()); |
| } |
| return pStates; |
| } |
| |
| CPDF_RenderContext::CPDF_RenderContext(CPDF_Page* pPage) |
| : m_pDocument(pPage->m_pDocument), |
| m_pPageResources(pPage->m_pPageResources), |
| m_pPageCache(pPage->GetRenderCache()) {} |
| |
| CPDF_RenderContext::CPDF_RenderContext(CPDF_Document* pDoc, |
| CPDF_PageRenderCache* pPageCache) |
| : m_pDocument(pDoc), m_pPageResources(nullptr), m_pPageCache(pPageCache) {} |
| |
| 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, nullptr, 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, nullptr, nullptr, |
| pOptions, pLayer->m_pObjectHolder->m_Transparency, |
| FALSE, nullptr); |
| 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(false); |
| break; |
| } |
| } else { |
| CPDF_RenderStatus status; |
| status.Initialize(this, pDevice, nullptr, pStopObj, nullptr, nullptr, |
| pOptions, pLayer->m_pObjectHolder->m_Transparency, |
| FALSE, nullptr); |
| 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(false); |
| break; |
| } |
| } |
| pDevice->RestoreState(false); |
| } |
| } |
| |
| 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(false); |
| } |
| |
| 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, nullptr, nullptr, nullptr, nullptr, m_pOptions, |
| m_pCurrentLayer->m_pObjectHolder->m_Transparency, FALSE, nullptr); |
| 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(false); |
| 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 (uint32_t i = 0; i < 3; ++i) { |
| pFuncs[2 - i] = CPDF_Function::Load(pArray->GetDirectObjectAt(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(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.GetOuterRect(); |
| 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, nullptr, &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.GetOuterRect(); |
| 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, nullptr)) { |
| 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()); |
| } |
| } |
| |
| #if defined _SKIA_SUPPORT_ |
| void CPDF_RenderStatus::DebugVerifyDeviceIsPreMultiplied() const { |
| m_pDevice->DebugVerifyBitmapIsPreMultiplied(); |
| } |
| #endif |
