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

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
deleted file mode 100644
index 237be06c82388ee7994c8f7216af6d635deb1036..0000000000000000000000000000000000000000
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ /dev/null
@@ -1,999 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/src/fpdfapi/fpdf_render/render_int.h"
-
-#include <utility>
-#include <vector>
-
-#include "core/include/fpdfapi/cpdf_array.h"
-#include "core/include/fpdfapi/cpdf_dictionary.h"
-#include "core/include/fpdfapi/cpdf_document.h"
-#include "core/include/fpdfapi/fpdf_module.h"
-#include "core/include/fpdfapi/fpdf_pageobj.h"
-#include "core/include/fpdfapi/fpdf_render.h"
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxcrt/fx_safe_types.h"
-#include "core/include/fxge/fx_ge.h"
-#include "core/src/fpdfapi/fpdf_page/pageint.h"
-
-FX_BOOL CPDF_RenderStatus::ProcessImage(const CPDF_ImageObject* pImageObj,
- const CFX_Matrix* pObj2Device) {
- CPDF_ImageRenderer render;
- if (render.Start(this, pImageObj, pObj2Device, m_bStdCS, m_curBlend)) {
- render.Continue(NULL);
- }
- return render.m_Result;
-}
-void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
- int left,
- int top,
- FX_ARGB mask_argb,
- int bitmap_alpha,
- int blend_mode,
- int Transparency) {
- if (!pDIBitmap) {
- return;
- }
- FX_BOOL bIsolated = Transparency & PDFTRANS_ISOLATED;
- FX_BOOL bGroup = Transparency & PDFTRANS_GROUP;
- if (blend_mode == FXDIB_BLEND_NORMAL) {
- if (!pDIBitmap->IsAlphaMask()) {
- if (bitmap_alpha < 255) {
- pDIBitmap->MultiplyAlpha(bitmap_alpha);
- }
- if (m_pDevice->SetDIBits(pDIBitmap, left, top)) {
- return;
- }
- } else {
- FX_DWORD fill_argb = m_Options.TranslateColor(mask_argb);
- if (bitmap_alpha < 255) {
- ((uint8_t*)&fill_argb)[3] =
- ((uint8_t*)&fill_argb)[3] * bitmap_alpha / 255;
- }
- if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) {
- return;
- }
- }
- }
- FX_BOOL bBackAlphaRequired = blend_mode && bIsolated && !m_bDropObjects;
- FX_BOOL bGetBackGround =
- ((m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT)) ||
- (!(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT) &&
- (m_pDevice->GetRenderCaps() & FXRC_GET_BITS) && !bBackAlphaRequired);
- if (bGetBackGround) {
- if (bIsolated || !bGroup) {
- if (pDIBitmap->IsAlphaMask()) {
- return;
- }
- m_pDevice->SetDIBits(pDIBitmap, left, top, blend_mode);
- } else {
- FX_RECT rect(left, top, left + pDIBitmap->GetWidth(),
- top + pDIBitmap->GetHeight());
- rect.Intersect(m_pDevice->GetClipBox());
- CFX_DIBitmap* pClone = NULL;
- FX_BOOL bClone = FALSE;
- if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) {
- bClone = TRUE;
- pClone = m_pDevice->GetBackDrop()->Clone(&rect);
- CFX_DIBitmap* pForeBitmap = m_pDevice->GetBitmap();
- pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(),
- pForeBitmap, rect.left, rect.top);
- left = left >= 0 ? 0 : left;
- top = top >= 0 ? 0 : top;
- if (!pDIBitmap->IsAlphaMask())
- pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(),
- pDIBitmap, left, top, blend_mode);
- else
- pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(),
- pDIBitmap, mask_argb, left, top, blend_mode);
- } else {
- pClone = pDIBitmap;
- }
- if (m_pDevice->GetBackDrop()) {
- m_pDevice->SetDIBits(pClone, rect.left, rect.top);
- } else {
- if (pDIBitmap->IsAlphaMask()) {
- return;
- }
- m_pDevice->SetDIBits(pDIBitmap, rect.left, rect.top, blend_mode);
- }
- if (bClone) {
- delete pClone;
- }
- }
- return;
- }
- int back_left, back_top;
- FX_RECT rect(left, top, left + pDIBitmap->GetWidth(),
- top + pDIBitmap->GetHeight());
- std::unique_ptr<CFX_DIBitmap> pBackdrop(
- GetBackdrop(m_pCurObj, rect, back_left, back_top,
- blend_mode > FXDIB_BLEND_NORMAL && bIsolated));
- if (!pBackdrop)
- return;
-
- if (!pDIBitmap->IsAlphaMask()) {
- pBackdrop->CompositeBitmap(left - back_left, top - back_top,
- pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
- pDIBitmap, 0, 0, blend_mode);
- } else {
- pBackdrop->CompositeMask(left - back_left, top - back_top,
- pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
- pDIBitmap, mask_argb, 0, 0, blend_mode);
- }
-
- std::unique_ptr<CFX_DIBitmap> pBackdrop1(new CFX_DIBitmap);
- pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(),
- FXDIB_Rgb32);
- pBackdrop1->Clear((FX_DWORD)-1);
- pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(),
- pBackdrop->GetHeight(), pBackdrop.get(), 0, 0);
- pBackdrop = std::move(pBackdrop1);
- m_pDevice->SetDIBits(pBackdrop.get(), back_left, back_top);
-}
-
-CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
-
-FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
- return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
- m_Samples[256 + FXSYS_GetGValue(rgb)],
- m_Samples[512 + FXSYS_GetBValue(rgb)]);
-}
-
-CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc,
- FX_BOOL bAutoDropSrc) {
- CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
- pDest->LoadSrc(pSrc, bAutoDropSrc);
- return pDest;
-}
-
-CPDF_DIBTransferFunc::~CPDF_DIBTransferFunc() {
-}
-
-FXDIB_Format CPDF_DIBTransferFunc::GetDestFormat() {
- if (m_pSrc->IsAlphaMask()) {
- return FXDIB_8bppMask;
- }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb32;
-#else
- return (m_pSrc->HasAlpha()) ? FXDIB_Argb : FXDIB_Rgb;
-#endif
-}
-CPDF_DIBTransferFunc::CPDF_DIBTransferFunc(
- const CPDF_TransferFunc* pTransferFunc) {
- m_RampR = pTransferFunc->m_Samples;
- m_RampG = &pTransferFunc->m_Samples[256];
- m_RampB = &pTransferFunc->m_Samples[512];
-}
-void CPDF_DIBTransferFunc::TranslateScanline(uint8_t* dest_buf,
- const uint8_t* src_buf) const {
- int i;
- FX_BOOL bSkip = FALSE;
- switch (m_pSrc->GetFormat()) {
- case FXDIB_1bppRgb: {
- int r0 = m_RampR[0], g0 = m_RampG[0], b0 = m_RampB[0];
- int r1 = m_RampR[255], g1 = m_RampG[255], b1 = m_RampB[255];
- for (i = 0; i < m_Width; i++) {
- if (src_buf[i / 8] & (1 << (7 - i % 8))) {
- *dest_buf++ = b1;
- *dest_buf++ = g1;
- *dest_buf++ = r1;
- } else {
- *dest_buf++ = b0;
- *dest_buf++ = g0;
- *dest_buf++ = r0;
- }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- dest_buf++;
-#endif
- }
- break;
- }
- case FXDIB_1bppMask: {
- int m0 = m_RampR[0], m1 = m_RampR[255];
- for (i = 0; i < m_Width; i++) {
- if (src_buf[i / 8] & (1 << (7 - i % 8))) {
- *dest_buf++ = m1;
- } else {
- *dest_buf++ = m0;
- }
- }
- break;
- }
- case FXDIB_8bppRgb: {
- FX_ARGB* pPal = m_pSrc->GetPalette();
- for (i = 0; i < m_Width; i++) {
- if (pPal) {
- FX_ARGB src_argb = pPal[*src_buf];
- *dest_buf++ = m_RampB[FXARGB_R(src_argb)];
- *dest_buf++ = m_RampG[FXARGB_G(src_argb)];
- *dest_buf++ = m_RampR[FXARGB_B(src_argb)];
- } else {
- FX_DWORD src_byte = *src_buf;
- *dest_buf++ = m_RampB[src_byte];
- *dest_buf++ = m_RampG[src_byte];
- *dest_buf++ = m_RampR[src_byte];
- }
- src_buf++;
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- dest_buf++;
-#endif
- }
- break;
- }
- case FXDIB_8bppMask:
- for (i = 0; i < m_Width; i++) {
- *dest_buf++ = m_RampR[*(src_buf++)];
- }
- break;
- case FXDIB_Rgb:
- for (i = 0; i < m_Width; i++) {
- *dest_buf++ = m_RampB[*(src_buf++)];
- *dest_buf++ = m_RampG[*(src_buf++)];
- *dest_buf++ = m_RampR[*(src_buf++)];
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- dest_buf++;
-#endif
- }
- break;
- case FXDIB_Rgb32:
- bSkip = TRUE;
- case FXDIB_Argb:
- for (i = 0; i < m_Width; i++) {
- *dest_buf++ = m_RampB[*(src_buf++)];
- *dest_buf++ = m_RampG[*(src_buf++)];
- *dest_buf++ = m_RampR[*(src_buf++)];
- if (!bSkip) {
- *dest_buf++ = *src_buf;
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- } else {
- dest_buf++;
-#endif
- }
- src_buf++;
- }
- break;
- default:
- break;
- }
-}
-void CPDF_DIBTransferFunc::TranslateDownSamples(uint8_t* dest_buf,
- const uint8_t* src_buf,
- int pixels,
- int Bpp) const {
- if (Bpp == 8) {
- for (int i = 0; i < pixels; i++) {
- *dest_buf++ = m_RampR[*(src_buf++)];
- }
- } else if (Bpp == 24) {
- for (int i = 0; i < pixels; i++) {
- *dest_buf++ = m_RampB[*(src_buf++)];
- *dest_buf++ = m_RampG[*(src_buf++)];
- *dest_buf++ = m_RampR[*(src_buf++)];
- }
- } else {
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- if (!m_pSrc->HasAlpha()) {
- for (int i = 0; i < pixels; i++) {
- *dest_buf++ = m_RampB[*(src_buf++)];
- *dest_buf++ = m_RampG[*(src_buf++)];
- *dest_buf++ = m_RampR[*(src_buf++)];
- dest_buf++;
- src_buf++;
- }
- } else {
-#endif
- for (int i = 0; i < pixels; i++) {
- *dest_buf++ = m_RampB[*(src_buf++)];
- *dest_buf++ = m_RampG[*(src_buf++)];
- *dest_buf++ = m_RampR[*(src_buf++)];
- *dest_buf++ = *(src_buf++);
- }
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- }
-#endif
- }
-}
-CPDF_ImageRenderer::CPDF_ImageRenderer() {
- m_pRenderStatus = NULL;
- m_pImageObject = NULL;
- m_Result = TRUE;
- m_Status = 0;
- m_pTransformer = NULL;
- m_DeviceHandle = NULL;
- m_LoadHandle = NULL;
- m_pClone = NULL;
- m_bStdCS = FALSE;
- m_bPatternColor = FALSE;
- m_BlendType = FXDIB_BLEND_NORMAL;
- m_pPattern = NULL;
- m_pObj2Device = NULL;
-}
-CPDF_ImageRenderer::~CPDF_ImageRenderer() {
- delete m_pTransformer;
- if (m_DeviceHandle) {
- m_pRenderStatus->m_pDevice->CancelDIBits(m_DeviceHandle);
- }
- delete m_LoadHandle;
- delete m_pClone;
-}
-FX_BOOL CPDF_ImageRenderer::StartLoadDIBSource() {
- CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
- FX_RECT image_rect = image_rect_f.GetOutterRect();
- int dest_width = image_rect.Width();
- int dest_height = image_rect.Height();
- if (m_ImageMatrix.a < 0) {
- dest_width = -dest_width;
- }
- if (m_ImageMatrix.d > 0) {
- dest_height = -dest_height;
- }
- if (m_Loader.Start(m_pImageObject,
- m_pRenderStatus->m_pContext->GetPageCache(), m_LoadHandle,
- m_bStdCS, m_pRenderStatus->m_GroupFamily,
- m_pRenderStatus->m_bLoadMask, m_pRenderStatus, dest_width,
- dest_height)) {
- if (m_LoadHandle) {
- m_Status = 4;
- return TRUE;
- }
- }
- return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
- if (!m_Loader.m_pBitmap) {
- return FALSE;
- }
- m_BitmapAlpha = 255;
- const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
- if (pGeneralState) {
- m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
- }
- m_pDIBSource = m_Loader.m_pBitmap;
- if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
- !m_Loader.m_pMask) {
- return StartBitmapAlpha();
- }
- if (pGeneralState && pGeneralState->m_pTR) {
- if (!pGeneralState->m_pTransferFunc) {
- ((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc =
- m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
- }
- if (pGeneralState->m_pTransferFunc &&
- !pGeneralState->m_pTransferFunc->m_bIdentity) {
- m_pDIBSource = m_Loader.m_pBitmap =
- pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap,
- !m_Loader.m_bCached);
- if (m_Loader.m_bCached && m_Loader.m_pMask) {
- m_Loader.m_pMask = m_Loader.m_pMask->Clone();
- }
- m_Loader.m_bCached = FALSE;
- }
- }
- m_FillArgb = 0;
- m_bPatternColor = FALSE;
- m_pPattern = NULL;
- if (m_pDIBSource->IsAlphaMask()) {
- CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
- if (pColor && pColor->IsPattern()) {
- m_pPattern = pColor->GetPattern();
- if (m_pPattern) {
- m_bPatternColor = TRUE;
- }
- }
- m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
- } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
- m_pClone = m_pDIBSource->Clone();
- m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
- m_pRenderStatus->m_Options.m_ForeColor);
- m_pDIBSource = m_pClone;
- }
- m_Flags = 0;
- if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
- m_Flags |= RENDER_FORCE_DOWNSAMPLE;
- } else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
- m_Flags |= RENDER_FORCE_HALFTONE;
- }
- if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
- CPDF_Object* pFilters =
- m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
- "Filter");
- if (pFilters) {
- if (pFilters->IsName()) {
- CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
- if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode") {
- m_Flags |= FXRENDER_IMAGE_LOSSY;
- }
- } else if (CPDF_Array* pArray = pFilters->AsArray()) {
- for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
- CFX_ByteStringC bsDecodeType = pArray->GetConstStringAt(i);
- if (bsDecodeType == "DCTDecode" || bsDecodeType == "JPXDecode") {
- m_Flags |= FXRENDER_IMAGE_LOSSY;
- break;
- }
- }
- }
- }
- }
- if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
- m_Flags |= FXDIB_NOSMOOTH;
- } else if (m_pImageObject->m_pImage->IsInterpol()) {
- m_Flags |= FXDIB_INTERPOL;
- }
- if (m_Loader.m_pMask) {
- return DrawMaskedImage();
- }
- if (m_bPatternColor) {
- return DrawPatternImage(m_pObj2Device);
- }
- if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
- pGeneralState->m_OPMode == 0 &&
- pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL &&
- pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
- CPDF_Document* pDocument = NULL;
- CPDF_Page* pPage = NULL;
- if (m_pRenderStatus->m_pContext->GetPageCache()) {
- pPage = m_pRenderStatus->m_pContext->GetPageCache()->GetPage();
- pDocument = pPage->m_pDocument;
- } else {
- pDocument = m_pImageObject->m_pImage->GetDocument();
- }
- CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
- CPDF_Object* pCSObj =
- m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
- "ColorSpace");
- CPDF_ColorSpace* pColorSpace =
- pDocument->LoadColorSpace(pCSObj, pPageResources);
- if (pColorSpace) {
- int format = pColorSpace->GetFamily();
- if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION ||
- format == PDFCS_DEVICEN) {
- m_BlendType = FXDIB_BLEND_DARKEN;
- }
- pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
- }
- }
- return StartDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus,
- const CPDF_PageObject* pObj,
- const CFX_Matrix* pObj2Device,
- FX_BOOL bStdCS,
- int blendType) {
- m_pRenderStatus = pStatus;
- m_bStdCS = bStdCS;
- m_pImageObject = pObj->AsImage();
- m_BlendType = blendType;
- m_pObj2Device = pObj2Device;
- CPDF_Dictionary* pOC = m_pImageObject->m_pImage->GetOC();
- if (pOC && m_pRenderStatus->m_Options.m_pOCContext &&
- !m_pRenderStatus->m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
- return FALSE;
- }
- m_ImageMatrix = m_pImageObject->m_Matrix;
- m_ImageMatrix.Concat(*pObj2Device);
- if (StartLoadDIBSource()) {
- return TRUE;
- }
- return StartRenderDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus,
- const CFX_DIBSource* pDIBSource,
- FX_ARGB bitmap_argb,
- int bitmap_alpha,
- const CFX_Matrix* pImage2Device,
- FX_DWORD flags,
- FX_BOOL bStdCS,
- int blendType) {
- m_pRenderStatus = pStatus;
- m_pDIBSource = pDIBSource;
- m_FillArgb = bitmap_argb;
- m_BitmapAlpha = bitmap_alpha;
- m_ImageMatrix = *pImage2Device;
- m_Flags = flags;
- m_bStdCS = bStdCS;
- m_BlendType = blendType;
- return StartDIBSource();
-}
-FX_BOOL CPDF_ImageRenderer::DrawPatternImage(const CFX_Matrix* pObj2Device) {
- if (m_pRenderStatus->m_bPrint &&
- !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
- m_Result = FALSE;
- return FALSE;
- }
- FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
- rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
- if (rect.IsEmpty()) {
- return FALSE;
- }
- CFX_Matrix new_matrix = m_ImageMatrix;
- new_matrix.TranslateI(-rect.left, -rect.top);
- int width = rect.Width();
- int height = rect.Height();
- CFX_FxgeDevice bitmap_device1;
- if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Rgb32)) {
- return TRUE;
- }
- bitmap_device1.GetBitmap()->Clear(0xffffff);
- {
- CPDF_RenderStatus bitmap_render;
- bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL,
- NULL, NULL, NULL, &m_pRenderStatus->m_Options, 0,
- m_pRenderStatus->m_bDropObjects, NULL, TRUE);
- CFX_Matrix patternDevice = *pObj2Device;
- patternDevice.Translate((FX_FLOAT)-rect.left, (FX_FLOAT)-rect.top);
- if (m_pPattern->m_PatternType == CPDF_Pattern::TILING) {
- bitmap_render.DrawTilingPattern(
- static_cast<CPDF_TilingPattern*>(m_pPattern), m_pImageObject,
- &patternDevice, FALSE);
- } else {
- bitmap_render.DrawShadingPattern(
- static_cast<CPDF_ShadingPattern*>(m_pPattern), m_pImageObject,
- &patternDevice, FALSE);
- }
- }
- {
- CFX_FxgeDevice bitmap_device2;
- if (!bitmap_device2.Create(rect.Width(), rect.Height(), FXDIB_8bppRgb)) {
- return TRUE;
- }
- bitmap_device2.GetBitmap()->Clear(0);
- CPDF_RenderStatus bitmap_render;
- bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL,
- NULL, NULL, NULL, NULL, 0,
- m_pRenderStatus->m_bDropObjects, NULL, TRUE);
- CPDF_ImageRenderer image_render;
- if (image_render.Start(&bitmap_render, m_pDIBSource, 0xffffffff, 255,
- &new_matrix, m_Flags, TRUE)) {
- image_render.Continue(NULL);
- }
- if (m_Loader.m_MatteColor != 0xffffffff) {
- int matte_r = FXARGB_R(m_Loader.m_MatteColor);
- int matte_g = FXARGB_G(m_Loader.m_MatteColor);
- int matte_b = FXARGB_B(m_Loader.m_MatteColor);
- for (int row = 0; row < height; row++) {
- uint8_t* dest_scan =
- (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
- const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
- for (int col = 0; col < width; col++) {
- int alpha = *mask_scan++;
- if (alpha) {
- int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- dest_scan++;
- } else {
- dest_scan += 4;
- }
- }
- }
- }
- bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
- bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
- bitmap_device1.GetBitmap()->MultiplyAlpha(255);
- }
- m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left,
- rect.top, m_BlendType);
- return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::DrawMaskedImage() {
- if (m_pRenderStatus->m_bPrint &&
- !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
- m_Result = FALSE;
- return FALSE;
- }
- FX_RECT rect = m_ImageMatrix.GetUnitRect().GetOutterRect();
- rect.Intersect(m_pRenderStatus->m_pDevice->GetClipBox());
- if (rect.IsEmpty()) {
- return FALSE;
- }
- CFX_Matrix new_matrix = m_ImageMatrix;
- new_matrix.TranslateI(-rect.left, -rect.top);
- int width = rect.Width();
- int height = rect.Height();
- CFX_FxgeDevice bitmap_device1;
- if (!bitmap_device1.Create(width, height, FXDIB_Rgb32)) {
- return TRUE;
- }
- bitmap_device1.GetBitmap()->Clear(0xffffff);
- {
- CPDF_RenderStatus bitmap_render;
- bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1, NULL,
- NULL, NULL, NULL, NULL, 0,
- m_pRenderStatus->m_bDropObjects, NULL, TRUE);
- CPDF_ImageRenderer image_render;
- if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix,
- m_Flags, TRUE)) {
- image_render.Continue(NULL);
- }
- }
- {
- CFX_FxgeDevice bitmap_device2;
- if (!bitmap_device2.Create(width, height, FXDIB_8bppRgb)) {
- return TRUE;
- }
- bitmap_device2.GetBitmap()->Clear(0);
- CPDF_RenderStatus bitmap_render;
- bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device2, NULL,
- NULL, NULL, NULL, NULL, 0,
- m_pRenderStatus->m_bDropObjects, NULL, TRUE);
- CPDF_ImageRenderer image_render;
- if (image_render.Start(&bitmap_render, m_Loader.m_pMask, 0xffffffff, 255,
- &new_matrix, m_Flags, TRUE)) {
- image_render.Continue(NULL);
- }
- if (m_Loader.m_MatteColor != 0xffffffff) {
- int matte_r = FXARGB_R(m_Loader.m_MatteColor);
- int matte_g = FXARGB_G(m_Loader.m_MatteColor);
- int matte_b = FXARGB_B(m_Loader.m_MatteColor);
- for (int row = 0; row < height; row++) {
- uint8_t* dest_scan =
- (uint8_t*)bitmap_device1.GetBitmap()->GetScanline(row);
- const uint8_t* mask_scan = bitmap_device2.GetBitmap()->GetScanline(row);
- for (int col = 0; col < width; col++) {
- int alpha = *mask_scan++;
- if (alpha) {
- int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
- if (orig < 0) {
- orig = 0;
- } else if (orig > 255) {
- orig = 255;
- }
- *dest_scan++ = orig;
- dest_scan++;
- } else {
- dest_scan += 4;
- }
- }
- }
- }
- bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
- bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
- if (m_BitmapAlpha < 255) {
- bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
- }
- }
- m_pRenderStatus->m_pDevice->SetDIBits(bitmap_device1.GetBitmap(), rect.left,
- rect.top, m_BlendType);
- return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartDIBSource() {
- if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) {
- int image_size = m_pDIBSource->GetBPP() / 8 * m_pDIBSource->GetWidth() *
- m_pDIBSource->GetHeight();
- if (image_size > FPDF_HUGE_IMAGE_SIZE &&
- !(m_Flags & RENDER_FORCE_HALFTONE)) {
- m_Flags |= RENDER_FORCE_DOWNSAMPLE;
- }
- }
- if (m_pRenderStatus->m_pDevice->StartDIBits(
- m_pDIBSource, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags,
- m_DeviceHandle, 0, NULL, m_BlendType)) {
- if (m_DeviceHandle) {
- m_Status = 3;
- return TRUE;
- }
- return FALSE;
- }
- CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
- FX_RECT image_rect = image_rect_f.GetOutterRect();
- int dest_width = image_rect.Width();
- int dest_height = image_rect.Height();
- if ((FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || m_ImageMatrix.a == 0) ||
- (FXSYS_fabs(m_ImageMatrix.c) >= 0.5f || m_ImageMatrix.d == 0)) {
- if (m_pRenderStatus->m_bPrint &&
- !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
- m_Result = FALSE;
- return FALSE;
- }
- FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
- clip_box.Intersect(image_rect);
- m_Status = 2;
- m_pTransformer = new CFX_ImageTransformer;
- m_pTransformer->Start(m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box);
- return TRUE;
- }
- if (m_ImageMatrix.a < 0) {
- dest_width = -dest_width;
- }
- if (m_ImageMatrix.d > 0) {
- dest_height = -dest_height;
- }
- int dest_left, dest_top;
- dest_left = dest_width > 0 ? image_rect.left : image_rect.right;
- dest_top = dest_height > 0 ? image_rect.top : image_rect.bottom;
- if (m_pDIBSource->IsOpaqueImage() && m_BitmapAlpha == 255) {
- if (m_pRenderStatus->m_pDevice->StretchDIBits(
- m_pDIBSource, dest_left, dest_top, dest_width, dest_height, m_Flags,
- NULL, m_BlendType)) {
- return FALSE;
- }
- }
- if (m_pDIBSource->IsAlphaMask()) {
- if (m_BitmapAlpha != 255) {
- m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
- }
- if (m_pRenderStatus->m_pDevice->StretchBitMask(
- m_pDIBSource, dest_left, dest_top, dest_width, dest_height,
- m_FillArgb, m_Flags)) {
- return FALSE;
- }
- }
- if (m_pRenderStatus->m_bPrint &&
- !(m_pRenderStatus->m_pDevice->GetRenderCaps() & FXRC_BLEND_MODE)) {
- m_Result = FALSE;
- return TRUE;
- }
- FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
- FX_RECT dest_rect = clip_box;
- dest_rect.Intersect(image_rect);
- FX_RECT dest_clip(
- dest_rect.left - image_rect.left, dest_rect.top - image_rect.top,
- dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top);
- std::unique_ptr<CFX_DIBitmap> pStretched(
- m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip));
- if (pStretched) {
- m_pRenderStatus->CompositeDIBitmap(pStretched.get(), dest_rect.left,
- dest_rect.top, m_FillArgb, m_BitmapAlpha,
- m_BlendType, FALSE);
- }
- return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::StartBitmapAlpha() {
- if (m_pDIBSource->IsOpaqueImage()) {
- CFX_PathData path;
- path.AppendRect(0, 0, 1, 1);
- path.Transform(&m_ImageMatrix);
- FX_DWORD fill_color =
- ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha);
- m_pRenderStatus->m_pDevice->DrawPath(&path, NULL, NULL, fill_color, 0,
- FXFILL_WINDING);
- } else {
- const CFX_DIBSource* pAlphaMask = m_pDIBSource->IsAlphaMask()
- ? m_pDIBSource
- : m_pDIBSource->GetAlphaMask();
- if (FXSYS_fabs(m_ImageMatrix.b) >= 0.5f ||
- FXSYS_fabs(m_ImageMatrix.c) >= 0.5f) {
- int left, top;
- std::unique_ptr<CFX_DIBitmap> pTransformed(
- pAlphaMask->TransformTo(&m_ImageMatrix, left, top));
- if (!pTransformed)
- return TRUE;
-
- m_pRenderStatus->m_pDevice->SetBitMask(
- pTransformed.get(), left, top,
- ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
- } else {
- CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
- FX_RECT image_rect = image_rect_f.GetOutterRect();
- int dest_width =
- m_ImageMatrix.a > 0 ? image_rect.Width() : -image_rect.Width();
- int dest_height =
- m_ImageMatrix.d > 0 ? -image_rect.Height() : image_rect.Height();
- int left = dest_width > 0 ? image_rect.left : image_rect.right;
- int top = dest_height > 0 ? image_rect.top : image_rect.bottom;
- m_pRenderStatus->m_pDevice->StretchBitMask(
- pAlphaMask, left, top, dest_width, dest_height,
- ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
- }
- if (m_pDIBSource != pAlphaMask) {
- delete pAlphaMask;
- }
- }
- return FALSE;
-}
-FX_BOOL CPDF_ImageRenderer::Continue(IFX_Pause* pPause) {
- if (m_Status == 2) {
- if (m_pTransformer->Continue(pPause)) {
- return TRUE;
- }
- CFX_DIBitmap* pBitmap = m_pTransformer->m_Storer.Detach();
- if (!pBitmap) {
- return FALSE;
- }
- if (pBitmap->IsAlphaMask()) {
- if (m_BitmapAlpha != 255) {
- m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha);
- }
- m_Result = m_pRenderStatus->m_pDevice->SetBitMask(
- pBitmap, m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop,
- m_FillArgb);
- } else {
- if (m_BitmapAlpha != 255) {
- pBitmap->MultiplyAlpha(m_BitmapAlpha);
- }
- m_Result = m_pRenderStatus->m_pDevice->SetDIBits(
- pBitmap, m_pTransformer->m_ResultLeft, m_pTransformer->m_ResultTop,
- m_BlendType);
- }
- delete pBitmap;
- return FALSE;
- }
- if (m_Status == 3) {
- return m_pRenderStatus->m_pDevice->ContinueDIBits(m_DeviceHandle, pPause);
- }
- if (m_Status == 4) {
- if (m_Loader.Continue(m_LoadHandle, pPause)) {
- return TRUE;
- }
- if (StartRenderDIBSource()) {
- return Continue(pPause);
- }
- }
- return FALSE;
-}
-ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(
- const uint8_t* src_buf,
- FX_DWORD src_size,
- int width,
- int height,
- int nComps,
- int bpc,
- const CPDF_Dictionary* pParams);
-CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
- FX_RECT* pClipRect,
- const CFX_Matrix* pMatrix) {
- if (!pSMaskDict) {
- return NULL;
- }
- int width = pClipRect->right - pClipRect->left;
- int height = pClipRect->bottom - pClipRect->top;
- FX_BOOL bLuminosity = FALSE;
- bLuminosity = pSMaskDict->GetConstStringBy("S") != "Alpha";
- CPDF_Stream* pGroup = pSMaskDict->GetStreamBy("G");
- if (!pGroup) {
- return NULL;
- }
- std::unique_ptr<CPDF_Function> pFunc;
- CPDF_Object* pFuncObj = pSMaskDict->GetElementValue("TR");
- if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream()))
- pFunc.reset(CPDF_Function::Load(pFuncObj));
-
- CFX_Matrix matrix = *pMatrix;
- matrix.TranslateI(-pClipRect->left, -pClipRect->top);
- CPDF_Form form(m_pContext->GetDocument(), m_pContext->GetPageResources(),
- pGroup);
- form.ParseContent(NULL, NULL, NULL, NULL);
- CFX_FxgeDevice bitmap_device;
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
- if (!bitmap_device.Create(width, height,
- bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
- return NULL;
- }
-#else
- if (!bitmap_device.Create(width, height,
- bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
- return NULL;
- }
-#endif
- CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
- CPDF_Object* pCSObj = NULL;
- CPDF_ColorSpace* pCS = NULL;
- if (bLuminosity) {
- CPDF_Array* pBC = pSMaskDict->GetArrayBy("BC");
- FX_ARGB back_color = 0xff000000;
- if (pBC) {
- CPDF_Dictionary* pDict = pGroup->GetDict();
- if (pDict && pDict->GetDictBy("Group"))
- pCSObj = pDict->GetDictBy("Group")->GetElementValue("CS");
- else
- pCSObj = NULL;
- pCS = m_pContext->GetDocument()->LoadColorSpace(pCSObj);
- if (pCS) {
- FX_FLOAT R, G, B;
- FX_DWORD comps = 8;
- if (pCS->CountComponents() > comps) {
- comps = pCS->CountComponents();
- }
- CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
- FX_FLOAT* pFloats = float_array;
- FX_SAFE_DWORD num_floats = comps;
- num_floats *= sizeof(FX_FLOAT);
- if (!num_floats.IsValid()) {
- return NULL;
- }
- FXSYS_memset(pFloats, 0, num_floats.ValueOrDie());
- int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
- for (int i = 0; i < count; i++) {
- pFloats[i] = pBC->GetNumberAt(i);
- }
- pCS->GetRGB(pFloats, R, G, B);
- back_color = 0xff000000 | ((int32_t)(R * 255) << 16) |
- ((int32_t)(G * 255) << 8) | (int32_t)(B * 255);
- m_pContext->GetDocument()->GetPageData()->ReleaseColorSpace(pCSObj);
- }
- }
- bitmap.Clear(back_color);
- } else {
- bitmap.Clear(0);
- }
- CPDF_Dictionary* pFormResource = NULL;
- if (form.m_pFormDict) {
- pFormResource = form.m_pFormDict->GetDictBy("Resources");
- }
- CPDF_RenderOptions options;
- options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
- CPDF_RenderStatus status;
- status.Initialize(m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
- &options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0,
- pCS ? pCS->GetFamily() : 0, bLuminosity);
- status.RenderObjectList(&form, &matrix);
- std::unique_ptr<CFX_DIBitmap> pMask(new CFX_DIBitmap);
- if (!pMask->Create(width, height, FXDIB_8bppMask))
- return nullptr;
-
- uint8_t* dest_buf = pMask->GetBuffer();
- int dest_pitch = pMask->GetPitch();
- uint8_t* src_buf = bitmap.GetBuffer();
- int src_pitch = bitmap.GetPitch();
- std::vector<uint8_t> transfers(256);
- if (pFunc) {
- CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
- for (int i = 0; i < 256; i++) {
- FX_FLOAT input = (FX_FLOAT)i / 255.0f;
- int nresult;
- pFunc->Call(&input, 1, results, nresult);
- transfers[i] = FXSYS_round(results[0] * 255);
- }
- } else {
- for (int i = 0; i < 256; i++) {
- transfers[i] = i;
- }
- }
- if (bLuminosity) {
- int Bpp = bitmap.GetBPP() / 8;
- for (int row = 0; row < height; row++) {
- uint8_t* dest_pos = dest_buf + row * dest_pitch;
- uint8_t* src_pos = src_buf + row * src_pitch;
- for (int col = 0; col < width; col++) {
- *dest_pos++ = transfers[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
- src_pos += Bpp;
- }
- }
- } else if (pFunc) {
- int size = dest_pitch * height;
- for (int i = 0; i < size; i++) {
- dest_buf[i] = transfers[src_buf[i]];
- }
- } else {
- FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
- }
- return pMask.release();
-}
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