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Unified Diff: core/fpdfapi/fpdf_page/cpdf_image.cpp

Issue 2386423004: Move core/fpdfapi/fpdf_page to core/fpdfapi/page (Closed)
Patch Set: Rebase to master Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_page/cpdf_image.cpp
diff --git a/core/fpdfapi/fpdf_page/cpdf_image.cpp b/core/fpdfapi/fpdf_page/cpdf_image.cpp
deleted file mode 100644
index 21cec2e442207e8cb188d1ac18b4f39c94d0846b..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_page/cpdf_image.cpp
+++ /dev/null
@@ -1,411 +0,0 @@
-// Copyright 2016 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_page/cpdf_image.h"
-
-#include <algorithm>
-#include <memory>
-#include <vector>
-
-#include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/fpdf_page/cpdf_page.h"
-#include "core/fpdfapi/fpdf_page/pageint.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_boolean.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_document.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_string.h"
-#include "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h"
-#include "core/fpdfapi/fpdf_render/render_int.h"
-#include "core/fxcodec/fx_codec.h"
-#include "core/fxge/fx_dib.h"
-
-CPDF_Image::CPDF_Image(CPDF_Document* pDoc)
- : CPDF_Image(pDoc, nullptr, false) {}
-
-CPDF_Image::CPDF_Image(CPDF_Document* pDoc, CPDF_Stream* pStream, bool bInline)
- : m_pDIBSource(nullptr),
- m_pMask(nullptr),
- m_MatteColor(0),
- m_pStream(pStream),
- m_bInline(bInline),
- m_pInlineDict(nullptr),
- m_Height(0),
- m_Width(0),
- m_bIsMask(false),
- m_bInterpolate(false),
- m_pDocument(pDoc),
- m_pOC(nullptr) {
- if (!pStream)
- return;
-
- CPDF_Dictionary* pDict = pStream->GetDict();
- if (m_bInline)
- m_pInlineDict = ToDictionary(pDict->Clone());
-
- m_pOC = pDict->GetDictFor("OC");
- m_bIsMask =
- !pDict->KeyExist("ColorSpace") || pDict->GetIntegerFor("ImageMask");
- m_bInterpolate = !!pDict->GetIntegerFor("Interpolate");
- m_Height = pDict->GetIntegerFor("Height");
- m_Width = pDict->GetIntegerFor("Width");
-}
-
-CPDF_Image::~CPDF_Image() {
- if (m_bInline) {
- if (m_pStream)
- m_pStream->Release();
- if (m_pInlineDict)
- m_pInlineDict->Release();
- }
-}
-
-CPDF_Image* CPDF_Image::Clone() {
- if (m_pStream->GetObjNum())
- return m_pDocument->GetPageData()->GetImage(m_pStream);
-
- CPDF_Image* pImage =
- new CPDF_Image(m_pDocument, ToStream(m_pStream->Clone()), m_bInline);
- if (m_bInline)
- pImage->SetInlineDict(ToDictionary(m_pInlineDict->CloneDirectObject()));
-
- return pImage;
-}
-
-CPDF_Dictionary* CPDF_Image::InitJPEG(uint8_t* pData, uint32_t size) {
- int32_t width;
- int32_t height;
- int32_t num_comps;
- int32_t bits;
- bool color_trans;
- if (!CPDF_ModuleMgr::Get()->GetJpegModule()->LoadInfo(
- pData, size, &width, &height, &num_comps, &bits, &color_trans)) {
- return nullptr;
- }
-
- CPDF_Dictionary* pDict =
- new CPDF_Dictionary(m_pDocument->GetByteStringPool());
- pDict->SetNameFor("Type", "XObject");
- pDict->SetNameFor("Subtype", "Image");
- pDict->SetIntegerFor("Width", width);
- pDict->SetIntegerFor("Height", height);
- const FX_CHAR* csname = nullptr;
- if (num_comps == 1) {
- csname = "DeviceGray";
- } else if (num_comps == 3) {
- csname = "DeviceRGB";
- } else if (num_comps == 4) {
- csname = "DeviceCMYK";
- CPDF_Array* pDecode = new CPDF_Array;
- for (int n = 0; n < 4; n++) {
- pDecode->AddInteger(1);
- pDecode->AddInteger(0);
- }
- pDict->SetFor("Decode", pDecode);
- }
- pDict->SetNameFor("ColorSpace", csname);
- pDict->SetIntegerFor("BitsPerComponent", bits);
- pDict->SetNameFor("Filter", "DCTDecode");
- if (!color_trans) {
- CPDF_Dictionary* pParms =
- new CPDF_Dictionary(m_pDocument->GetByteStringPool());
- pDict->SetFor("DecodeParms", pParms);
- pParms->SetIntegerFor("ColorTransform", 0);
- }
- m_bIsMask = FALSE;
- m_Width = width;
- m_Height = height;
- if (!m_pStream)
- m_pStream = new CPDF_Stream;
- return pDict;
-}
-
-void CPDF_Image::SetJpegImage(IFX_FileRead* pFile) {
- uint32_t size = (uint32_t)pFile->GetSize();
- if (!size)
- return;
-
- uint32_t dwEstimateSize = std::min(size, 8192U);
- std::vector<uint8_t> data(dwEstimateSize);
- pFile->ReadBlock(data.data(), 0, dwEstimateSize);
- CPDF_Dictionary* pDict = InitJPEG(data.data(), dwEstimateSize);
- if (!pDict && size > dwEstimateSize) {
- data.resize(size);
- pFile->ReadBlock(data.data(), 0, size);
- pDict = InitJPEG(data.data(), size);
- }
- if (!pDict)
- return;
-
- m_pStream->InitStreamFromFile(pFile, pDict);
-}
-
-void CPDF_Image::SetImage(const CFX_DIBitmap* pBitmap, int32_t iCompress) {
- int32_t BitmapWidth = pBitmap->GetWidth();
- int32_t BitmapHeight = pBitmap->GetHeight();
- if (BitmapWidth < 1 || BitmapHeight < 1) {
- return;
- }
- uint8_t* src_buf = pBitmap->GetBuffer();
- int32_t src_pitch = pBitmap->GetPitch();
- int32_t bpp = pBitmap->GetBPP();
-
- CPDF_Dictionary* pDict =
- new CPDF_Dictionary(m_pDocument->GetByteStringPool());
- pDict->SetNameFor("Type", "XObject");
- pDict->SetNameFor("Subtype", "Image");
- pDict->SetIntegerFor("Width", BitmapWidth);
- pDict->SetIntegerFor("Height", BitmapHeight);
- uint8_t* dest_buf = nullptr;
- FX_STRSIZE dest_pitch = 0, dest_size = 0, opType = -1;
- if (bpp == 1) {
- int32_t reset_a = 0, reset_r = 0, reset_g = 0, reset_b = 0;
- int32_t set_a = 0, set_r = 0, set_g = 0, set_b = 0;
- if (!pBitmap->IsAlphaMask()) {
- ArgbDecode(pBitmap->GetPaletteArgb(0), reset_a, reset_r, reset_g,
- reset_b);
- ArgbDecode(pBitmap->GetPaletteArgb(1), set_a, set_r, set_g, set_b);
- }
- if (set_a == 0 || reset_a == 0) {
- pDict->SetFor("ImageMask", new CPDF_Boolean(TRUE));
- if (reset_a == 0) {
- CPDF_Array* pArray = new CPDF_Array;
- pArray->AddInteger(1);
- pArray->AddInteger(0);
- pDict->SetFor("Decode", pArray);
- }
- } else {
- CPDF_Array* pCS = new CPDF_Array;
- pCS->AddName("Indexed");
- pCS->AddName("DeviceRGB");
- pCS->AddInteger(1);
- CFX_ByteString ct;
- FX_CHAR* pBuf = ct.GetBuffer(6);
- pBuf[0] = (FX_CHAR)reset_r;
- pBuf[1] = (FX_CHAR)reset_g;
- pBuf[2] = (FX_CHAR)reset_b;
- pBuf[3] = (FX_CHAR)set_r;
- pBuf[4] = (FX_CHAR)set_g;
- pBuf[5] = (FX_CHAR)set_b;
- ct.ReleaseBuffer(6);
- pCS->Add(new CPDF_String(ct, TRUE));
- pDict->SetFor("ColorSpace", pCS);
- }
- pDict->SetIntegerFor("BitsPerComponent", 1);
- dest_pitch = (BitmapWidth + 7) / 8;
- if ((iCompress & 0x03) == PDF_IMAGE_NO_COMPRESS) {
- opType = 1;
- } else {
- opType = 0;
- }
- } else if (bpp == 8) {
- int32_t iPalette = pBitmap->GetPaletteSize();
- if (iPalette > 0) {
- CPDF_Array* pCS = new CPDF_Array;
- pCS->AddName("Indexed");
- pCS->AddName("DeviceRGB");
- pCS->AddInteger(iPalette - 1);
- uint8_t* pColorTable = FX_Alloc2D(uint8_t, iPalette, 3);
- uint8_t* ptr = pColorTable;
- for (int32_t i = 0; i < iPalette; i++) {
- uint32_t argb = pBitmap->GetPaletteArgb(i);
- ptr[0] = (uint8_t)(argb >> 16);
- ptr[1] = (uint8_t)(argb >> 8);
- ptr[2] = (uint8_t)argb;
- ptr += 3;
- }
- CPDF_Stream* pCTS = new CPDF_Stream(
- pColorTable, iPalette * 3,
- new CPDF_Dictionary(m_pDocument->GetByteStringPool()));
- pCS->AddReference(m_pDocument, m_pDocument->AddIndirectObject(pCTS));
- pDict->SetReferenceFor("ColorSpace", m_pDocument,
- m_pDocument->AddIndirectObject(pCS));
- } else {
- pDict->SetNameFor("ColorSpace", "DeviceGray");
- }
- pDict->SetIntegerFor("BitsPerComponent", 8);
- if ((iCompress & 0x03) == PDF_IMAGE_NO_COMPRESS) {
- dest_pitch = BitmapWidth;
- opType = 1;
- } else {
- opType = 0;
- }
- } else {
- pDict->SetNameFor("ColorSpace", "DeviceRGB");
- pDict->SetIntegerFor("BitsPerComponent", 8);
- if ((iCompress & 0x03) == PDF_IMAGE_NO_COMPRESS) {
- dest_pitch = BitmapWidth * 3;
- opType = 2;
- } else {
- opType = 0;
- }
- }
- const CFX_DIBitmap* pMaskBitmap = nullptr;
- FX_BOOL bDeleteMask = FALSE;
- if (pBitmap->HasAlpha()) {
- pMaskBitmap = pBitmap->GetAlphaMask();
- bDeleteMask = TRUE;
- }
- if (pMaskBitmap) {
- int32_t maskWidth = pMaskBitmap->GetWidth();
- int32_t maskHeight = pMaskBitmap->GetHeight();
- uint8_t* mask_buf = nullptr;
- FX_STRSIZE mask_size = 0;
- CPDF_Dictionary* pMaskDict =
- new CPDF_Dictionary(m_pDocument->GetByteStringPool());
- pMaskDict->SetNameFor("Type", "XObject");
- pMaskDict->SetNameFor("Subtype", "Image");
- pMaskDict->SetIntegerFor("Width", maskWidth);
- pMaskDict->SetIntegerFor("Height", maskHeight);
- pMaskDict->SetNameFor("ColorSpace", "DeviceGray");
- pMaskDict->SetIntegerFor("BitsPerComponent", 8);
- if (pMaskBitmap->GetBPP() == 8 &&
- (iCompress & PDF_IMAGE_MASK_LOSSY_COMPRESS) != 0) {
- } else if (pMaskBitmap->GetFormat() == FXDIB_1bppMask) {
- } else {
- mask_buf = FX_Alloc2D(uint8_t, maskHeight, maskWidth);
- mask_size = maskHeight * maskWidth; // Safe since checked alloc returned.
- for (int32_t a = 0; a < maskHeight; a++) {
- FXSYS_memcpy(mask_buf + a * maskWidth, pMaskBitmap->GetScanline(a),
- maskWidth);
- }
- }
- pMaskDict->SetIntegerFor("Length", mask_size);
- pDict->SetReferenceFor("SMask", m_pDocument,
- m_pDocument->AddIndirectObject(new CPDF_Stream(
- mask_buf, mask_size, pMaskDict)));
- if (bDeleteMask)
- delete pMaskBitmap;
- }
- if (opType == 0) {
- if (iCompress & PDF_IMAGE_LOSSLESS_COMPRESS) {
- } else {
- if (pBitmap->GetBPP() == 1) {
- } else if (pBitmap->GetBPP() >= 8 && pBitmap->GetPalette()) {
- CFX_DIBitmap* pNewBitmap = new CFX_DIBitmap();
- pNewBitmap->Copy(pBitmap);
- pNewBitmap->ConvertFormat(FXDIB_Rgb);
- SetImage(pNewBitmap, iCompress);
- if (pDict) {
- pDict->Release();
- pDict = nullptr;
- }
- FX_Free(dest_buf);
- dest_buf = nullptr;
- dest_size = 0;
- delete pNewBitmap;
- return;
- }
- }
- } else if (opType == 1) {
- dest_buf = FX_Alloc2D(uint8_t, dest_pitch, BitmapHeight);
- dest_size = dest_pitch * BitmapHeight; // Safe as checked alloc returned.
-
- uint8_t* pDest = dest_buf;
- for (int32_t i = 0; i < BitmapHeight; i++) {
- FXSYS_memcpy(pDest, src_buf, dest_pitch);
- pDest += dest_pitch;
- src_buf += src_pitch;
- }
- } else if (opType == 2) {
- dest_buf = FX_Alloc2D(uint8_t, dest_pitch, BitmapHeight);
- dest_size = dest_pitch * BitmapHeight; // Safe as checked alloc returned.
-
- uint8_t* pDest = dest_buf;
- int32_t src_offset = 0;
- int32_t dest_offset = 0;
- for (int32_t row = 0; row < BitmapHeight; row++) {
- src_offset = row * src_pitch;
- for (int32_t column = 0; column < BitmapWidth; column++) {
- FX_FLOAT alpha = 1;
- pDest[dest_offset] = (uint8_t)(src_buf[src_offset + 2] * alpha);
- pDest[dest_offset + 1] = (uint8_t)(src_buf[src_offset + 1] * alpha);
- pDest[dest_offset + 2] = (uint8_t)(src_buf[src_offset] * alpha);
- dest_offset += 3;
- src_offset += bpp == 24 ? 3 : 4;
- }
-
- pDest += dest_pitch;
- dest_offset = 0;
- }
- }
- if (!m_pStream)
- m_pStream = new CPDF_Stream;
-
- m_pStream->InitStream(dest_buf, dest_size, pDict);
- m_bIsMask = pBitmap->IsAlphaMask();
- m_Width = BitmapWidth;
- m_Height = BitmapHeight;
- FX_Free(dest_buf);
-}
-
-void CPDF_Image::ResetCache(CPDF_Page* pPage, const CFX_DIBitmap* pBitmap) {
- pPage->GetRenderCache()->ResetBitmap(m_pStream, pBitmap);
-}
-
-CFX_DIBSource* CPDF_Image::LoadDIBSource(CFX_DIBSource** ppMask,
- uint32_t* pMatteColor,
- FX_BOOL bStdCS,
- uint32_t GroupFamily,
- FX_BOOL bLoadMask) const {
- std::unique_ptr<CPDF_DIBSource> source(new CPDF_DIBSource);
- if (source->Load(m_pDocument, m_pStream,
- reinterpret_cast<CPDF_DIBSource**>(ppMask), pMatteColor,
- nullptr, nullptr, bStdCS, GroupFamily, bLoadMask)) {
- return source.release();
- }
- return nullptr;
-}
-
-CFX_DIBSource* CPDF_Image::DetachBitmap() {
- CFX_DIBSource* pBitmap = m_pDIBSource;
- m_pDIBSource = nullptr;
- return pBitmap;
-}
-
-CFX_DIBSource* CPDF_Image::DetachMask() {
- CFX_DIBSource* pBitmap = m_pMask;
- m_pMask = nullptr;
- return pBitmap;
-}
-
-FX_BOOL CPDF_Image::StartLoadDIBSource(CPDF_Dictionary* pFormResource,
- CPDF_Dictionary* pPageResource,
- FX_BOOL bStdCS,
- uint32_t GroupFamily,
- FX_BOOL bLoadMask) {
- std::unique_ptr<CPDF_DIBSource> source(new CPDF_DIBSource);
- int ret =
- source->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResource,
- pPageResource, bStdCS, GroupFamily, bLoadMask);
- if (ret == 2) {
- m_pDIBSource = source.release();
- return TRUE;
- }
- if (!ret) {
- m_pDIBSource = nullptr;
- return FALSE;
- }
- m_pMask = source->DetachMask();
- m_MatteColor = source->GetMatteColor();
- m_pDIBSource = source.release();
- return FALSE;
-}
-
-FX_BOOL CPDF_Image::Continue(IFX_Pause* pPause) {
- CPDF_DIBSource* pSource = static_cast<CPDF_DIBSource*>(m_pDIBSource);
- int ret = pSource->ContinueLoadDIBSource(pPause);
- if (ret == 2) {
- return TRUE;
- }
- if (!ret) {
- delete m_pDIBSource;
- m_pDIBSource = nullptr;
- return FALSE;
- }
- m_pMask = pSource->DetachMask();
- m_MatteColor = pSource->GetMatteColor();
- return FALSE;
-}
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