// 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/fpdf_render/render_int.h"
|
|
#include "core/fpdfapi/fpdf_font/cpdf_type3char.h"
|
#include "core/fpdfapi/fpdf_font/cpdf_type3font.h"
|
#include "core/fpdfapi/fpdf_page/cpdf_colorstatedata.h"
|
#include "core/fpdfapi/fpdf_page/cpdf_graphicstates.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_formobject.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_image.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_imageobject.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_pathobject.h"
|
#include "core/fpdfapi/fpdf_page/include/cpdf_textobject.h"
|
#include "core/fpdfapi/fpdf_page/pageint.h"
|
#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
|
#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
|
#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
|
#include "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h"
|
#include "core/fpdfapi/fpdf_render/include/cpdf_progressiverenderer.h"
|
#include "core/fpdfapi/fpdf_render/include/cpdf_renderoptions.h"
|
#include "core/fpdfapi/fpdf_render/include/cpdf_textrenderer.h"
|
#include "core/fpdfapi/include/cpdf_modulemgr.h"
|
#include "core/fpdfdoc/include/fpdf_doc.h"
|
#include "core/fxge/include/fx_ge.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 = nullptr;
|
} 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();
|
}
|
|
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) {}
|
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) {
|
const CPDF_ColorStateData* pColorData =
|
m_InitialStates.m_ColorState.GetObject();
|
const CPDF_ColorStateData* pParentData =
|
pParentState->m_InitialStates.m_ColorState.GetObject();
|
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_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(const 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.NotNull()) {
|
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(const 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.NotNull() &&
|
!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(const 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(const CPDF_PageObject* pObj,
|
const CFX_Matrix* pObj2Device) {
|
FX_BOOL bRet = FALSE;
|
switch (pObj->GetType()) {
|
case CPDF_PageObject::PATH:
|
bRet = ProcessPath(pObj->AsPath(), pObj2Device);
|
break;
|
case CPDF_PageObject::IMAGE:
|
bRet = ProcessImage(pObj->AsImage(), pObj2Device);
|
break;
|
case CPDF_PageObject::FORM:
|
bRet = ProcessForm(pObj->AsForm(), pObj2Device);
|
break;
|
default:
|
break;
|
}
|
return bRet;
|
}
|
void CPDF_RenderStatus::GetScaledMatrix(CFX_Matrix& matrix) const {
|
CFX_Matrix dCTM = m_pDevice->GetCTM();
|
matrix.a *= FXSYS_fabs(dCTM.a);
|
matrix.d *= FXSYS_fabs(dCTM.d);
|
}
|
void CPDF_RenderStatus::DrawObjWithBackground(const CPDF_PageObject* pObj,
|
const CFX_Matrix* pObj2Device) {
|
FX_RECT rect;
|
if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
|
return;
|
}
|
int res = 300;
|
if (pObj->IsImage() &&
|
m_pDevice->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
|
res = 0;
|
}
|
CPDF_ScaledRenderBuffer buffer;
|
if (!buffer.Initialize(m_pContext, m_pDevice, rect, pObj, &m_Options, res)) {
|
return;
|
}
|
CFX_Matrix matrix = *pObj2Device;
|
matrix.Concat(*buffer.GetMatrix());
|
GetScaledMatrix(matrix);
|
CPDF_Dictionary* pFormResource = 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->GetDictBy("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->GetDictBy("OC");
|
if (pOC && m_Options.m_pOCContext &&
|
!m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
|
return TRUE;
|
}
|
CFX_Matrix matrix = pFormObj->m_FormMatrix;
|
matrix.Concat(*pObj2Device);
|
CPDF_Dictionary* pResources = nullptr;
|
if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
|
pResources = pFormObj->m_pForm->m_pFormDict->GetDictBy("Resources");
|
}
|
CPDF_RenderStatus status;
|
status.Initialize(m_pContext, m_pDevice, 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(const CPDF_PathObject* pPathObj,
|
const CFX_Matrix* pObj2Device) {
|
int FillType = pPathObj->m_FillType;
|
FX_BOOL bStroke = pPathObj->m_bStroke;
|
ProcessPathPattern(pPathObj, pObj2Device, FillType, bStroke);
|
if (FillType == 0 && !bStroke)
|
return TRUE;
|
|
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_GeneralStateData* pGeneralData =
|
static_cast<const CPDF_PageObject*>(pPathObj)->m_GeneralState.GetObject();
|
if (pGeneralData && pGeneralData->m_StrokeAdjust)
|
FillType |= FX_STROKE_ADJUST;
|
if (m_pType3Char)
|
FillType |= FX_FILL_TEXT_MODE;
|
|
CFX_GraphStateData graphState(*pPathObj->m_GraphState.GetObject());
|
if (m_Options.m_Flags & RENDER_THINLINE)
|
graphState.m_LineWidth = 0;
|
return m_pDevice->DrawPathWithBlend(pPathObj->m_Path.GetObject(),
|
&path_matrix, &graphState, 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(const CPDF_PageObject* pObj,
|
FX_BOOL bType3) const {
|
const CPDF_ColorStateData* pColorData = pObj->m_ColorState.GetObject();
|
if (m_pType3Char && !bType3 &&
|
(!m_pType3Char->m_bColored ||
|
(m_pType3Char->m_bColored &&
|
(!pColorData || pColorData->m_FillColor.IsNull())))) {
|
return m_T3FillColor;
|
}
|
if (!pColorData || pColorData->m_FillColor.IsNull()) {
|
pColorData = m_InitialStates.m_ColorState.GetObject();
|
}
|
FX_COLORREF rgb = pColorData->m_FillRGB;
|
if (rgb == (uint32_t)-1) {
|
return 0;
|
}
|
const CPDF_GeneralStateData* pGeneralData = pObj->m_GeneralState.GetObject();
|
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 {
|
const CPDF_ColorStateData* pColorData = pObj->m_ColorState.GetObject();
|
if (m_pType3Char && (!m_pType3Char->m_bColored ||
|
(m_pType3Char->m_bColored &&
|
(!pColorData || pColorData->m_StrokeColor.IsNull())))) {
|
return m_T3FillColor;
|
}
|
if (!pColorData || pColorData->m_StrokeColor.IsNull()) {
|
pColorData = m_InitialStates.m_ColorState.GetObject();
|
}
|
FX_COLORREF rgb = pColorData->m_StrokeRGB;
|
if (rgb == (uint32_t)-1) {
|
return 0;
|
}
|
const CPDF_GeneralStateData* pGeneralData = pObj->m_GeneralState.GetObject();
|
int alpha;
|
if (pGeneralData) {
|
alpha = (int32_t)(pGeneralData->m_StrokeAlpha * 255);
|
if (pGeneralData->m_pTR) {
|
if (!pGeneralData->m_pTransferFunc) {
|
((CPDF_GeneralStateData*)pGeneralData)->m_pTransferFunc =
|
GetTransferFunc(pGeneralData->m_pTR);
|
}
|
if (pGeneralData->m_pTransferFunc) {
|
rgb = pGeneralData->m_pTransferFunc->TranslateColor(rgb);
|
}
|
}
|
} else {
|
alpha = 255;
|
}
|
return m_Options.TranslateColor(ArgbEncode(alpha, rgb));
|
}
|
void CPDF_RenderStatus::ProcessClipPath(CPDF_ClipPath ClipPath,
|
const CFX_Matrix* pObj2Device) {
|
if (ClipPath.IsNull()) {
|
if (!m_LastClipPath.IsNull()) {
|
m_pDevice->RestoreState(true);
|
m_LastClipPath.SetNull();
|
}
|
return;
|
}
|
if (m_LastClipPath == ClipPath)
|
return;
|
|
m_LastClipPath = ClipPath;
|
m_pDevice->RestoreState(true);
|
int nClipPath = ClipPath.GetPathCount();
|
for (int i = 0; i < nClipPath; ++i) {
|
const CFX_PathData* pPathData = ClipPath.GetPath(i).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.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).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_GraphStateData graphState(*pPathObj->m_GraphState.GetObject());
|
if (m_Options.m_Flags & RENDER_THINLINE) {
|
graphState.m_LineWidth = 0;
|
}
|
return m_pDevice->SetClip_PathStroke(pPathObj->m_Path.GetObject(),
|
&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.GetObject(), &path_matrix,
|
fill_mode);
|
}
|
FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj,
|
const CFX_Matrix* pObj2Device) {
|
#if defined _SKIA_SUPPORT_
|
DebugVerifyDeviceIsPreMultiplied();
|
#endif
|
const CPDF_GeneralStateData* pGeneralState =
|
pPageObj->m_GeneralState.GetObject();
|
int blend_type =
|
pGeneralState ? pGeneralState->m_BlendType : FXDIB_BLEND_NORMAL;
|
if (blend_type == FXDIB_BLEND_UNSUPPORTED) {
|
return TRUE;
|
}
|
CPDF_Dictionary* pSMaskDict =
|
pGeneralState ? ToDictionary(pGeneralState->m_pSoftMask) : nullptr;
|
if (pSMaskDict) {
|
if (pPageObj->IsImage() &&
|
pPageObj->AsImage()->m_pImage->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();
|
const CPDF_GeneralStateData* pStateData =
|
pFormObj->m_GeneralState.GetObject();
|
if (pStateData) {
|
group_alpha = pStateData->m_FillAlpha;
|
}
|
Transparency = pFormObj->m_pForm->m_Transparency;
|
bGroupTransparent = !!(Transparency & PDFTRANS_ISOLATED);
|
if (pFormObj->m_pForm->m_pFormDict) {
|
pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictBy("Resources");
|
}
|
}
|
FX_BOOL bTextClip = FALSE;
|
if (pPageObj->m_ClipPath.NotNull() && pPageObj->m_ClipPath.GetTextCount() &&
|
m_pDevice->GetDeviceClass() == FXDC_DISPLAY &&
|
!(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) {
|
bTextClip = TRUE;
|
}
|
if ((m_Options.m_Flags & RENDER_OVERPRINT) && pPageObj->IsImage() &&
|
pGeneralState && pGeneralState->m_FillOP && pGeneralState->m_StrokeOP) {
|
CPDF_Document* pDocument = nullptr;
|
CPDF_Page* pPage = nullptr;
|
if (m_pContext->GetPageCache()) {
|
pPage = m_pContext->GetPageCache()->GetPage();
|
pDocument = pPage->m_pDocument;
|
} else {
|
pDocument = pPageObj->AsImage()->m_pImage->GetDocument();
|
}
|
CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr;
|
CPDF_Object* pCSObj = pPageObj->AsImage()
|
->m_pImage->GetStream()
|
->GetDict()
|
->GetDirectObjectBy("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;
|
FXSYS_memcpy(&smask_matrix, pGeneralState->m_SMaskMatrix,
|
sizeof smask_matrix);
|
smask_matrix.Concat(*pObj2Device);
|
std::unique_ptr<CFX_DIBSource> pSMaskSource(
|
LoadSMask(pSMaskDict, &rect, &smask_matrix));
|
if (pSMaskSource)
|
bitmap->MultiplyAlpha(pSMaskSource.get());
|
}
|
if (pTextMask) {
|
bitmap->MultiplyAlpha(pTextMask.get());
|
pTextMask.reset();
|
}
|
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);
|
CPDF_Color* pObjColor = bStroke ? pSrcStates->m_ColorState.GetStrokeColor()
|
: pSrcStates->m_ColorState.GetFillColor();
|
if (!pObjColor->IsNull()) {
|
CPDF_ColorStateData* pColorData = pStates->m_ColorState.GetModify();
|
pColorData->m_FillRGB =
|
bStroke ? pSrcStates->m_ColorState.GetObject()->m_StrokeRGB
|
: pSrcStates->m_ColorState.GetObject()->m_FillRGB;
|
pColorData->m_StrokeRGB = pColorData->m_FillRGB;
|
}
|
return pStates;
|
}
|
|
CPDF_RenderContext::CPDF_RenderContext(CPDF_Page* pPage)
|
: m_pDocument(pPage->m_pDocument),
|
m_pPageResources(pPage->m_pPageResources),
|
m_pPageCache(pPage->GetRenderCache()),
|
m_bFirstLayer(TRUE) {}
|
|
CPDF_RenderContext::CPDF_RenderContext(CPDF_Document* pDoc,
|
CPDF_PageRenderCache* pPageCache)
|
: m_pDocument(pDoc),
|
m_pPageResources(nullptr),
|
m_pPageCache(pPageCache),
|
m_bFirstLayer(TRUE) {}
|
|
CPDF_RenderContext::~CPDF_RenderContext() {}
|
|
void CPDF_RenderContext::AppendLayer(CPDF_PageObjectHolder* pObjectHolder,
|
const CFX_Matrix* pObject2Device) {
|
Layer* pLayer = m_Layers.AddSpace();
|
pLayer->m_pObjectHolder = pObjectHolder;
|
if (pObject2Device) {
|
pLayer->m_Matrix = *pObject2Device;
|
} else {
|
pLayer->m_Matrix.SetIdentity();
|
}
|
}
|
void CPDF_RenderContext::Render(CFX_RenderDevice* pDevice,
|
const CPDF_RenderOptions* pOptions,
|
const CFX_Matrix* pLastMatrix) {
|
Render(pDevice, 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.GetOutterRect();
|
m_pBitmap.reset(new CFX_DIBitmap);
|
m_pBitmap->Create(bitmap_rect.Width(), bitmap_rect.Height(), FXDIB_Argb);
|
return TRUE;
|
}
|
void CPDF_DeviceBuffer::OutputToDevice() {
|
if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_GET_BITS) {
|
if (m_Matrix.a == 1.0f && m_Matrix.d == 1.0f) {
|
m_pDevice->SetDIBits(m_pBitmap.get(), m_Rect.left, m_Rect.top);
|
} else {
|
m_pDevice->StretchDIBits(m_pBitmap.get(), m_Rect.left, m_Rect.top,
|
m_Rect.Width(), m_Rect.Height());
|
}
|
} else {
|
CFX_DIBitmap buffer;
|
m_pDevice->CreateCompatibleBitmap(&buffer, m_pBitmap->GetWidth(),
|
m_pBitmap->GetHeight());
|
m_pContext->GetBackground(&buffer, m_pObject, 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.GetOutterRect();
|
int32_t iWidth = bitmap_rect.Width();
|
int32_t iHeight = bitmap_rect.Height();
|
int32_t iPitch = (iWidth * bpp + 31) / 32 * 4;
|
if (iWidth * iHeight < 1)
|
return FALSE;
|
|
if (iPitch * iHeight <= _FPDFAPI_IMAGESIZE_LIMIT_ &&
|
m_pBitmapDevice->Create(iWidth, iHeight, dibFormat, 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
|
