diff options
Diffstat (limited to 'core/fpdfapi/render/fpdf_render.cpp')
| -rw-r--r-- | core/fpdfapi/render/fpdf_render.cpp | 770 |
1 files changed, 1 insertions, 769 deletions
diff --git a/core/fpdfapi/render/fpdf_render.cpp b/core/fpdfapi/render/fpdf_render.cpp index ca9e059171..ba5d836e95 100644 --- a/core/fpdfapi/render/fpdf_render.cpp +++ b/core/fpdfapi/render/fpdf_render.cpp @@ -29,6 +29,7 @@ #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_renderstatus.h" #include "core/fpdfapi/render/cpdf_textrenderer.h" #include "core/fpdfapi/render/cpdf_type3cache.h" #include "core/fpdfdoc/cpdf_occontext.h" @@ -92,750 +93,6 @@ FX_ARGB CPDF_RenderOptions::TranslateColor(FX_ARGB argb) const { 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() {} - -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, - bool bDropObjects, - CPDF_Dictionary* pFormResource, - bool bStdCS, - CPDF_Type3Char* pType3Char, - FX_ARGB fill_color, - uint32_t GroupFamily, - 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 -} - -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; -} - -bool CPDF_RenderStatus::GetObjectClippedRect(const CPDF_PageObject* pObj, - const CFX_Matrix* pObj2Device, - 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 - 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 -} - -bool CPDF_RenderStatus::DrawObjWithBlend(CPDF_PageObject* pObj, - const CFX_Matrix* pObj2Device) { - 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(); -} - -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; -} - -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; -} - -bool CPDF_RenderStatus::ProcessPath(CPDF_PathObject* pPathObj, - const CFX_Matrix* pObj2Device) { - int FillType = pPathObj->m_FillType; - 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, - 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); - } -} -bool CPDF_RenderStatus::SelectClipPath(const CPDF_PathObject* pPathObj, - const CFX_Matrix* pObj2Device, - 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); -} -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; - 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) { - 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, - 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; - - 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, @@ -847,25 +104,6 @@ void CPDF_RenderContext::GetBackground(CFX_DIBitmap* pBuffer, device.FillRect(&rect, 0xffffffff); Render(&device, pObj, pOptions, pFinalMatrix); } -CPDF_GraphicStates* CPDF_RenderStatus::CloneObjStates( - const CPDF_GraphicStates* pSrcStates, - 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), @@ -1162,9 +400,3 @@ void CPDF_ScaledRenderBuffer::OutputToDevice() { m_Rect.top, m_Rect.Width(), m_Rect.Height()); } } - -#if defined _SKIA_SUPPORT_ -void CPDF_RenderStatus::DebugVerifyDeviceIsPreMultiplied() const { - m_pDevice->DebugVerifyBitmapIsPreMultiplied(); -} -#endif |