From e6ff2ebfaa19421c8d932f4d275548156ae2e13c Mon Sep 17 00:00:00 2001 From: Tom Sepez Date: Fri, 24 Aug 2018 21:55:46 +0000 Subject: Rename CFX_DIBSource to CFX_DIBBase. It is not a source from which you can get CFX_DIBs, but rather a base class from which all DIBs inherit. Do the same thing for the CPDF_DIBSource wrapper class. Mechanical change apart from adding a one-line comment in cfx_dibbase.h Change-Id: Id2bde87813ca301d9fafc55ce08d703dfc6a7184 Reviewed-on: https://pdfium-review.googlesource.com/41352 Reviewed-by: Lei Zhang Commit-Queue: Tom Sepez --- core/fpdfapi/font/cpdf_type3char.cpp | 10 +- core/fpdfapi/page/cpdf_generalstate.cpp | 2 +- core/fpdfapi/page/cpdf_image.cpp | 52 +- core/fpdfapi/page/cpdf_image.h | 22 +- core/fpdfapi/parser/cpdf_document.cpp | 2 +- core/fpdfapi/render/cpdf_dibbase.cpp | 1349 +++++++++++++++++++++++++ core/fpdfapi/render/cpdf_dibbase.h | 163 ++++ core/fpdfapi/render/cpdf_dibsource.cpp | 1350 -------------------------- core/fpdfapi/render/cpdf_dibsource.h | 163 ---- core/fpdfapi/render/cpdf_docrenderdata.cpp | 2 +- core/fpdfapi/render/cpdf_imagecacheentry.cpp | 38 +- core/fpdfapi/render/cpdf_imagecacheentry.h | 16 +- core/fpdfapi/render/cpdf_imageloader.cpp | 4 +- core/fpdfapi/render/cpdf_imageloader.h | 4 +- core/fpdfapi/render/cpdf_imagerenderer.cpp | 86 +- core/fpdfapi/render/cpdf_imagerenderer.h | 14 +- core/fpdfapi/render/cpdf_pagerendercache.cpp | 6 +- core/fpdfapi/render/cpdf_renderstatus.cpp | 4 +- core/fpdfapi/render/cpdf_transferfunc.cpp | 6 +- core/fpdfapi/render/cpdf_transferfunc.h | 4 +- 20 files changed, 1648 insertions(+), 1649 deletions(-) create mode 100644 core/fpdfapi/render/cpdf_dibbase.cpp create mode 100644 core/fpdfapi/render/cpdf_dibbase.h delete mode 100644 core/fpdfapi/render/cpdf_dibsource.cpp delete mode 100644 core/fpdfapi/render/cpdf_dibsource.h (limited to 'core/fpdfapi') diff --git a/core/fpdfapi/font/cpdf_type3char.cpp b/core/fpdfapi/font/cpdf_type3char.cpp index 8a89582b00..a04e83c468 100644 --- a/core/fpdfapi/font/cpdf_type3char.cpp +++ b/core/fpdfapi/font/cpdf_type3char.cpp @@ -49,15 +49,15 @@ bool CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext) { m_ImageMatrix = pPageObj->AsImage()->matrix(); { - // |pSource| actually gets assigned a CPDF_DIBSource, which has pointers + // |pSource| actually gets assigned a CPDF_DIBBase, which has pointers // into objects owned by |m_pForm|. Make sure it is out of scope before // clearing the form. - RetainPtr pSource = - pPageObj->AsImage()->GetImage()->LoadDIBSource(); + RetainPtr pSource = + pPageObj->AsImage()->GetImage()->LoadDIBBase(); - // Clone() is non-virtual, and can't be overloaded by CPDF_DIBSource to + // Clone() is non-virtual, and can't be overloaded by CPDF_DIBBase to // return a clone of the subclass as one would typically expect from a - // such a method. Instead, it only clones the CFX_DIBSource, none of whose + // such a method. Instead, it only clones the CFX_DIBBase, none of whose // members point to objects owned by the form. As a result, |m_pBitmap| // may outlive |m_pForm|. if (pSource) diff --git a/core/fpdfapi/page/cpdf_generalstate.cpp b/core/fpdfapi/page/cpdf_generalstate.cpp index 2657578ab7..ea912736fe 100644 --- a/core/fpdfapi/page/cpdf_generalstate.cpp +++ b/core/fpdfapi/page/cpdf_generalstate.cpp @@ -8,7 +8,7 @@ #include "constants/transparency.h" #include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_docrenderdata.h" #include "core/fpdfapi/render/cpdf_transferfunc.h" diff --git a/core/fpdfapi/page/cpdf_image.cpp b/core/fpdfapi/page/cpdf_image.cpp index a1be407dfe..b1c2fc9e82 100644 --- a/core/fpdfapi/page/cpdf_image.cpp +++ b/core/fpdfapi/page/cpdf_image.cpp @@ -23,7 +23,7 @@ #include "core/fpdfapi/parser/cpdf_reference.h" #include "core/fpdfapi/parser/cpdf_stream.h" #include "core/fpdfapi/parser/cpdf_string.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_pagerendercache.h" #include "core/fxcodec/codec/ccodec_jpegmodule.h" #include "core/fxcrt/fx_stream.h" @@ -329,43 +329,43 @@ void CPDF_Image::ResetCache(CPDF_Page* pPage, pPage->GetRenderCache()->ResetBitmap(pHolder, pBitmap); } -RetainPtr CPDF_Image::LoadDIBSource() const { - auto source = pdfium::MakeRetain(); +RetainPtr CPDF_Image::LoadDIBBase() const { + auto source = pdfium::MakeRetain(); if (!source->Load(m_pDocument.Get(), m_pStream.Get())) return nullptr; if (!source->IsJBigImage()) return source; - CPDF_DIBSource::LoadState ret = CPDF_DIBSource::LoadState::kContinue; - while (ret == CPDF_DIBSource::LoadState::kContinue) - ret = source->ContinueLoadDIBSource(nullptr); - return ret == CPDF_DIBSource::LoadState::kSuccess ? source : nullptr; + CPDF_DIBBase::LoadState ret = CPDF_DIBBase::LoadState::kContinue; + while (ret == CPDF_DIBBase::LoadState::kContinue) + ret = source->ContinueLoadDIBBase(nullptr); + return ret == CPDF_DIBBase::LoadState::kSuccess ? source : nullptr; } -RetainPtr CPDF_Image::DetachBitmap() { - return std::move(m_pDIBSource); +RetainPtr CPDF_Image::DetachBitmap() { + return std::move(m_pDIBBase); } -RetainPtr CPDF_Image::DetachMask() { +RetainPtr CPDF_Image::DetachMask() { return std::move(m_pMask); } -bool CPDF_Image::StartLoadDIBSource(const CPDF_Dictionary* pFormResource, - CPDF_Dictionary* pPageResource, - bool bStdCS, - uint32_t GroupFamily, - bool bLoadMask) { - auto source = pdfium::MakeRetain(); - CPDF_DIBSource::LoadState ret = source->StartLoadDIBSource( +bool CPDF_Image::StartLoadDIBBase(const CPDF_Dictionary* pFormResource, + CPDF_Dictionary* pPageResource, + bool bStdCS, + uint32_t GroupFamily, + bool bLoadMask) { + auto source = pdfium::MakeRetain(); + CPDF_DIBBase::LoadState ret = source->StartLoadDIBBase( m_pDocument.Get(), m_pStream.Get(), true, pFormResource, pPageResource, bStdCS, GroupFamily, bLoadMask); - if (ret == CPDF_DIBSource::LoadState::kFail) { - m_pDIBSource.Reset(); + if (ret == CPDF_DIBBase::LoadState::kFail) { + m_pDIBBase.Reset(); return false; } - m_pDIBSource = source; - if (ret == CPDF_DIBSource::LoadState::kContinue) + m_pDIBBase = source; + if (ret == CPDF_DIBBase::LoadState::kContinue) return true; m_pMask = source->DetachMask(); @@ -374,16 +374,16 @@ bool CPDF_Image::StartLoadDIBSource(const CPDF_Dictionary* pFormResource, } bool CPDF_Image::Continue(PauseIndicatorIface* pPause) { - RetainPtr pSource = m_pDIBSource.As(); - CPDF_DIBSource::LoadState ret = pSource->ContinueLoadDIBSource(pPause); - if (ret == CPDF_DIBSource::LoadState::kContinue) + RetainPtr pSource = m_pDIBBase.As(); + CPDF_DIBBase::LoadState ret = pSource->ContinueLoadDIBBase(pPause); + if (ret == CPDF_DIBBase::LoadState::kContinue) return true; - if (ret == CPDF_DIBSource::LoadState::kSuccess) { + if (ret == CPDF_DIBBase::LoadState::kSuccess) { m_pMask = pSource->DetachMask(); m_MatteColor = pSource->GetMatteColor(); } else { - m_pDIBSource.Reset(); + m_pDIBBase.Reset(); } return false; } diff --git a/core/fpdfapi/page/cpdf_image.h b/core/fpdfapi/page/cpdf_image.h index e6c6d18986..4306109199 100644 --- a/core/fpdfapi/page/cpdf_image.h +++ b/core/fpdfapi/page/cpdf_image.h @@ -15,7 +15,7 @@ #include "core/fxcrt/retain_ptr.h" #include "core/fxcrt/unowned_ptr.h" -class CFX_DIBSource; +class CFX_DIBBase; class CFX_DIBitmap; class CPDF_Document; class CPDF_Page; @@ -41,7 +41,7 @@ class CPDF_Image : public Retainable { bool IsMask() const { return m_bIsMask; } bool IsInterpol() const { return m_bInterpolate; } - RetainPtr LoadDIBSource() const; + RetainPtr LoadDIBBase() const; void SetImage(const RetainPtr& pDIBitmap); void SetJpegImage(const RetainPtr& pFile); @@ -50,20 +50,20 @@ class CPDF_Image : public Retainable { void ResetCache(CPDF_Page* pPage, const RetainPtr& pDIBitmap); // Returns whether to Continue() or not. - bool StartLoadDIBSource(const CPDF_Dictionary* pFormResource, - CPDF_Dictionary* pPageResource, - bool bStdCS, - uint32_t GroupFamily, - bool bLoadMask); + bool StartLoadDIBBase(const CPDF_Dictionary* pFormResource, + CPDF_Dictionary* pPageResource, + bool bStdCS, + uint32_t GroupFamily, + bool bLoadMask); // Returns whether to Continue() or not. bool Continue(PauseIndicatorIface* pPause); - RetainPtr DetachBitmap(); - RetainPtr DetachMask(); + RetainPtr DetachBitmap(); + RetainPtr DetachMask(); - RetainPtr m_pDIBSource; - RetainPtr m_pMask; + RetainPtr m_pDIBBase; + RetainPtr m_pMask; uint32_t m_MatteColor = 0; private: diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp index 63556de250..7119e7649a 100644 --- a/core/fpdfapi/parser/cpdf_document.cpp +++ b/core/fpdfapi/parser/cpdf_document.cpp @@ -26,7 +26,7 @@ #include "core/fpdfapi/parser/cpdf_reference.h" #include "core/fpdfapi/parser/cpdf_stream.h" #include "core/fpdfapi/parser/cpdf_string.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_docrenderdata.h" #include "core/fxcodec/JBig2_DocumentContext.h" #include "core/fxcrt/fx_codepage.h" diff --git a/core/fpdfapi/render/cpdf_dibbase.cpp b/core/fpdfapi/render/cpdf_dibbase.cpp new file mode 100644 index 0000000000..9aa1ab40a6 --- /dev/null +++ b/core/fpdfapi/render/cpdf_dibbase.cpp @@ -0,0 +1,1349 @@ +// Copyright 2017 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "core/fpdfapi/render/cpdf_dibbase.h" + +#include +#include +#include +#include + +#include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/page/cpdf_docpagedata.h" +#include "core/fpdfapi/page/cpdf_image.h" +#include "core/fpdfapi/page/cpdf_imageobject.h" +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fpdfapi/parser/cpdf_document.h" +#include "core/fpdfapi/parser/fpdf_parser_decode.h" +#include "core/fpdfapi/render/cpdf_pagerendercache.h" +#include "core/fpdfapi/render/cpdf_renderstatus.h" +#include "core/fxcodec/codec/ccodec_basicmodule.h" +#include "core/fxcodec/codec/ccodec_jbig2module.h" +#include "core/fxcodec/codec/ccodec_jpegmodule.h" +#include "core/fxcodec/codec/ccodec_jpxmodule.h" +#include "core/fxcodec/codec/ccodec_scanlinedecoder.h" +#include "core/fxcodec/codec/cjpx_decoder.h" +#include "core/fxcodec/fx_codec.h" +#include "core/fxcrt/cfx_fixedbufgrow.h" +#include "core/fxcrt/fx_safe_types.h" +#include "core/fxge/dib/cfx_dibitmap.h" +#include "third_party/base/ptr_util.h" + +namespace { + +constexpr int kMaxImageDimension = 0x01FFFF; + +unsigned int GetBits8(const uint8_t* pData, uint64_t bitpos, size_t nbits) { + ASSERT(nbits == 1 || nbits == 2 || nbits == 4 || nbits == 8 || nbits == 16); + ASSERT((bitpos & (nbits - 1)) == 0); + unsigned int byte = pData[bitpos / 8]; + if (nbits == 8) + return byte; + + if (nbits == 16) + return byte * 256 + pData[bitpos / 8 + 1]; + + return (byte >> (8 - nbits - (bitpos % 8))) & ((1 << nbits) - 1); +} + +bool GetBitValue(const uint8_t* pSrc, uint32_t pos) { + return pSrc[pos / 8] & (1 << (7 - pos % 8)); +} + +bool IsAllowedBPCValue(int bpc) { + return bpc == 1 || bpc == 2 || bpc == 4 || bpc == 8 || bpc == 16; +} + +bool IsAllowedICCComponents(int nComp) { + return nComp == 1 || nComp == 3 || nComp == 4; +} + +bool IsColorIndexOutOfBounds(uint8_t index, const DIB_COMP_DATA& comp_datum) { + return index < comp_datum.m_ColorKeyMin || index > comp_datum.m_ColorKeyMax; +} + +bool AreColorIndicesOutOfBounds(const uint8_t* indices, + const DIB_COMP_DATA* comp_data, + size_t count) { + for (size_t i = 0; i < count; ++i) { + if (IsColorIndexOutOfBounds(indices[i], comp_data[i])) + return true; + } + return false; +} + +// Wrapper class to use with std::unique_ptr for CJPX_Decoder. +class JpxBitMapContext { + public: + explicit JpxBitMapContext(CCodec_JpxModule* jpx_module) + : jpx_module_(jpx_module), decoder_(nullptr) {} + + ~JpxBitMapContext() {} + + void set_decoder(std::unique_ptr decoder) { + decoder_ = std::move(decoder); + } + + CJPX_Decoder* decoder() { return decoder_.get(); } + + private: + CCodec_JpxModule* const jpx_module_; // Weak pointer. + std::unique_ptr decoder_; + + // Disallow evil constructors + JpxBitMapContext(const JpxBitMapContext&); + void operator=(const JpxBitMapContext&); +}; + +} // namespace + +CPDF_DIBBase::CPDF_DIBBase() {} + +CPDF_DIBBase::~CPDF_DIBBase() { + if (m_pColorSpace && m_pDocument) { + auto* pPageData = m_pDocument->GetPageData(); + if (pPageData) { + auto* pSpace = m_pColorSpace.Release(); + pPageData->ReleaseColorSpace(pSpace->GetArray()); + } + } +} + +bool CPDF_DIBBase::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream) { + if (!pStream) + return false; + + m_pDocument = pDoc; + m_pDict = pStream->GetDict(); + if (!m_pDict) + return false; + + m_pStream = pStream; + m_Width = m_pDict->GetIntegerFor("Width"); + m_Height = m_pDict->GetIntegerFor("Height"); + if (m_Width <= 0 || m_Height <= 0 || m_Width > kMaxImageDimension || + m_Height > kMaxImageDimension) { + return false; + } + m_GroupFamily = 0; + m_bLoadMask = false; + if (!LoadColorInfo(nullptr, nullptr)) + return false; + + if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) + return false; + + FX_SAFE_UINT32 src_size = + CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height; + if (!src_size.IsValid()) + return false; + + m_pStreamAcc = pdfium::MakeRetain(pStream); + m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true); + if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) + return false; + + if (CreateDecoder() == LoadState::kFail) + return false; + + if (m_bImageMask) { + m_bpp = 1; + m_bpc = 1; + m_nComponents = 1; + m_AlphaFlag = 1; + } else if (m_bpc * m_nComponents == 1) { + m_bpp = 1; + } else if (m_bpc * m_nComponents <= 8) { + m_bpp = 8; + } else { + m_bpp = 24; + } + FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width); + if (!pitch.IsValid()) + return false; + + m_pLineBuf.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); + LoadPalette(); + if (m_bColorKey) { + m_bpp = 32; + m_AlphaFlag = 2; + pitch = CalculatePitch32(m_bpp, m_Width); + if (!pitch.IsValid()) + return false; + + m_pMaskedLine.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); + } + m_Pitch = pitch.ValueOrDie(); + return true; +} + +bool CPDF_DIBBase::ContinueToLoadMask() { + if (m_bImageMask) { + m_bpp = 1; + m_bpc = 1; + m_nComponents = 1; + m_AlphaFlag = 1; + } else if (m_bpc * m_nComponents == 1) { + m_bpp = 1; + } else if (m_bpc * m_nComponents <= 8) { + m_bpp = 8; + } else { + m_bpp = 24; + } + if (!m_bpc || !m_nComponents) { + return false; + } + FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width); + if (!pitch.IsValid()) + return false; + + m_pLineBuf.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); + if (m_pColorSpace && m_bStdCS) { + m_pColorSpace->EnableStdConversion(true); + } + LoadPalette(); + if (m_bColorKey) { + m_bpp = 32; + m_AlphaFlag = 2; + pitch = CalculatePitch32(m_bpp, m_Width); + if (!pitch.IsValid()) + return false; + m_pMaskedLine.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); + } + m_Pitch = pitch.ValueOrDie(); + return true; +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::StartLoadDIBBase( + CPDF_Document* pDoc, + const CPDF_Stream* pStream, + bool bHasMask, + const CPDF_Dictionary* pFormResources, + CPDF_Dictionary* pPageResources, + bool bStdCS, + uint32_t GroupFamily, + bool bLoadMask) { + if (!pStream) + return LoadState::kFail; + + m_pDocument = pDoc; + m_pDict = pStream->GetDict(); + m_pStream = pStream; + m_bStdCS = bStdCS; + m_bHasMask = bHasMask; + m_Width = m_pDict->GetIntegerFor("Width"); + m_Height = m_pDict->GetIntegerFor("Height"); + if (m_Width <= 0 || m_Height <= 0 || m_Width > kMaxImageDimension || + m_Height > kMaxImageDimension) { + return LoadState::kFail; + } + m_GroupFamily = GroupFamily; + m_bLoadMask = bLoadMask; + if (!LoadColorInfo(m_pStream->IsInline() ? pFormResources : nullptr, + pPageResources)) { + return LoadState::kFail; + } + if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) + return LoadState::kFail; + + FX_SAFE_UINT32 src_size = + CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height; + if (!src_size.IsValid()) + return LoadState::kFail; + + m_pStreamAcc = pdfium::MakeRetain(pStream); + m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true); + if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) + return LoadState::kFail; + + LoadState iCreatedDecoder = CreateDecoder(); + if (iCreatedDecoder == LoadState::kFail) + return LoadState::kFail; + + if (!ContinueToLoadMask()) + return LoadState::kFail; + + LoadState iLoadedMask = m_bHasMask ? StartLoadMask() : LoadState::kSuccess; + if (iCreatedDecoder == LoadState::kContinue || + iLoadedMask == LoadState::kContinue) { + return LoadState::kContinue; + } + + ASSERT(iCreatedDecoder == LoadState::kSuccess); + ASSERT(iLoadedMask == LoadState::kSuccess); + if (m_pColorSpace && m_bStdCS) + m_pColorSpace->EnableStdConversion(false); + return LoadState::kSuccess; +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::ContinueLoadDIBBase( + PauseIndicatorIface* pPause) { + if (m_Status == LoadState::kContinue) + return ContinueLoadMaskDIB(pPause); + + if (m_Status == LoadState::kFail) + return LoadState::kFail; + + if (m_pStreamAcc->GetImageDecoder() == "JPXDecode") + return LoadState::kFail; + + FXCODEC_STATUS iDecodeStatus; + CCodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module(); + if (!m_pJbig2Context) { + m_pJbig2Context = pdfium::MakeUnique(); + if (m_pStreamAcc->GetImageParam()) { + const CPDF_Stream* pGlobals = + m_pStreamAcc->GetImageParam()->GetStreamFor("JBIG2Globals"); + if (pGlobals) { + m_pGlobalStream = pdfium::MakeRetain(pGlobals); + m_pGlobalStream->LoadAllDataFiltered(); + } + } + iDecodeStatus = pJbig2Module->StartDecode( + m_pJbig2Context.get(), m_pDocument->CodecContext(), m_Width, m_Height, + m_pStreamAcc, m_pGlobalStream, m_pCachedBitmap->GetBuffer(), + m_pCachedBitmap->GetPitch(), pPause); + } else { + iDecodeStatus = pJbig2Module->ContinueDecode(m_pJbig2Context.get(), pPause); + } + + if (iDecodeStatus < 0) { + m_pJbig2Context.reset(); + m_pCachedBitmap.Reset(); + m_pGlobalStream.Reset(); + return LoadState::kFail; + } + if (iDecodeStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE) + return LoadState::kContinue; + + LoadState iContinueStatus = LoadState::kSuccess; + if (m_bHasMask) { + if (ContinueLoadMaskDIB(pPause) == LoadState::kContinue) { + iContinueStatus = LoadState::kContinue; + m_Status = LoadState::kContinue; + } + } + if (iContinueStatus == LoadState::kContinue) + return LoadState::kContinue; + + if (m_pColorSpace && m_bStdCS) + m_pColorSpace->EnableStdConversion(false); + return iContinueStatus; +} + +bool CPDF_DIBBase::LoadColorInfo(const CPDF_Dictionary* pFormResources, + const CPDF_Dictionary* pPageResources) { + m_bpc_orig = m_pDict->GetIntegerFor("BitsPerComponent"); + if (m_pDict->GetIntegerFor("ImageMask")) + m_bImageMask = true; + + if (m_bImageMask || !m_pDict->KeyExist("ColorSpace")) { + if (!m_bImageMask) { + const CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter"); + if (pFilter) { + ByteString filter; + if (pFilter->IsName()) { + filter = pFilter->GetString(); + } else if (const CPDF_Array* pArray = pFilter->AsArray()) { + filter = pArray->GetStringAt(pArray->GetCount() - 1); + } + + if (filter == "JPXDecode") { + m_bDoBpcCheck = false; + return true; + } + } + } + m_bImageMask = true; + m_bpc = m_nComponents = 1; + const CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode"); + m_bDefaultDecode = !pDecode || !pDecode->GetIntegerAt(0); + return true; + } + + const CPDF_Object* pCSObj = m_pDict->GetDirectObjectFor("ColorSpace"); + if (!pCSObj) + return false; + + CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); + if (pFormResources) + m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pFormResources); + if (!m_pColorSpace) + m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pPageResources); + if (!m_pColorSpace) + return false; + + m_Family = m_pColorSpace->GetFamily(); + m_nComponents = m_pColorSpace->CountComponents(); + if (m_Family == PDFCS_ICCBASED && pCSObj->IsName()) { + ByteString cs = pCSObj->GetString(); + if (cs == "DeviceGray") + m_nComponents = 1; + else if (cs == "DeviceRGB") + m_nComponents = 3; + else if (cs == "DeviceCMYK") + m_nComponents = 4; + } + ValidateDictParam(); + return GetDecodeAndMaskArray(&m_bDefaultDecode, &m_bColorKey); +} + +bool CPDF_DIBBase::GetDecodeAndMaskArray(bool* bDefaultDecode, + bool* bColorKey) { + if (!m_pColorSpace) + return false; + + m_CompData.resize(m_nComponents); + int max_data = (1 << m_bpc) - 1; + const CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode"); + if (pDecode) { + for (uint32_t i = 0; i < m_nComponents; i++) { + m_CompData[i].m_DecodeMin = pDecode->GetNumberAt(i * 2); + float max = pDecode->GetNumberAt(i * 2 + 1); + m_CompData[i].m_DecodeStep = (max - m_CompData[i].m_DecodeMin) / max_data; + float def_value; + float def_min; + float def_max; + m_pColorSpace->GetDefaultValue(i, &def_value, &def_min, &def_max); + if (m_Family == PDFCS_INDEXED) + def_max = max_data; + if (def_min != m_CompData[i].m_DecodeMin || def_max != max) + *bDefaultDecode = false; + } + } else { + for (uint32_t i = 0; i < m_nComponents; i++) { + float def_value; + m_pColorSpace->GetDefaultValue(i, &def_value, &m_CompData[i].m_DecodeMin, + &m_CompData[i].m_DecodeStep); + if (m_Family == PDFCS_INDEXED) + m_CompData[i].m_DecodeStep = max_data; + m_CompData[i].m_DecodeStep = + (m_CompData[i].m_DecodeStep - m_CompData[i].m_DecodeMin) / max_data; + } + } + if (m_pDict->KeyExist("SMask")) + return true; + + const CPDF_Object* pMask = m_pDict->GetDirectObjectFor("Mask"); + if (!pMask) + return true; + + if (const CPDF_Array* pArray = pMask->AsArray()) { + if (pArray->GetCount() >= m_nComponents * 2) { + for (uint32_t i = 0; i < m_nComponents; i++) { + int min_num = pArray->GetIntegerAt(i * 2); + int max_num = pArray->GetIntegerAt(i * 2 + 1); + m_CompData[i].m_ColorKeyMin = std::max(min_num, 0); + m_CompData[i].m_ColorKeyMax = std::min(max_num, max_data); + } + } + *bColorKey = true; + } + return true; +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::CreateDecoder() { + ByteString decoder = m_pStreamAcc->GetImageDecoder(); + if (decoder.IsEmpty()) + return LoadState::kSuccess; + + if (m_bDoBpcCheck && m_bpc == 0) + return LoadState::kFail; + + if (decoder == "JPXDecode") { + m_pCachedBitmap = LoadJpxBitmap(); + return m_pCachedBitmap ? LoadState::kSuccess : LoadState::kFail; + } + + if (decoder == "JBIG2Decode") { + m_pCachedBitmap = pdfium::MakeRetain(); + if (!m_pCachedBitmap->Create( + m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) { + m_pCachedBitmap.Reset(); + return LoadState::kFail; + } + m_Status = LoadState::kSuccess; + return LoadState::kContinue; + } + + const uint8_t* src_data = m_pStreamAcc->GetData(); + uint32_t src_size = m_pStreamAcc->GetSize(); + const CPDF_Dictionary* pParams = m_pStreamAcc->GetImageParam(); + if (decoder == "CCITTFaxDecode") { + m_pDecoder = FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, m_Height, + pParams); + } else if (decoder == "FlateDecode") { + m_pDecoder = FPDFAPI_CreateFlateDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams); + } else if (decoder == "RunLengthDecode") { + CCodec_ModuleMgr* pEncoders = CPDF_ModuleMgr::Get()->GetCodecModule(); + m_pDecoder = pEncoders->GetBasicModule()->CreateRunLengthDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc); + } else if (decoder == "DCTDecode") { + if (!CreateDCTDecoder(src_data, src_size, pParams)) + return LoadState::kFail; + } + if (!m_pDecoder) + return LoadState::kFail; + + FX_SAFE_UINT32 requested_pitch = + CalculatePitch8(m_bpc, m_nComponents, m_Width); + if (!requested_pitch.IsValid()) + return LoadState::kFail; + FX_SAFE_UINT32 provided_pitch = CalculatePitch8( + m_pDecoder->GetBPC(), m_pDecoder->CountComps(), m_pDecoder->GetWidth()); + if (!provided_pitch.IsValid()) + return LoadState::kFail; + if (provided_pitch.ValueOrDie() < requested_pitch.ValueOrDie()) + return LoadState::kFail; + return LoadState::kSuccess; +} + +bool CPDF_DIBBase::CreateDCTDecoder(const uint8_t* src_data, + uint32_t src_size, + const CPDF_Dictionary* pParams) { + CCodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule(); + m_pDecoder = pJpegModule->CreateDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, + !pParams || pParams->GetIntegerFor("ColorTransform", 1)); + if (m_pDecoder) + return true; + + bool bTransform = false; + int comps; + int bpc; + if (!pJpegModule->LoadInfo(src_data, src_size, &m_Width, &m_Height, &comps, + &bpc, &bTransform)) { + return false; + } + + if (m_nComponents == static_cast(comps)) { + m_bpc = bpc; + m_pDecoder = pJpegModule->CreateDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, bTransform); + return true; + } + + m_nComponents = static_cast(comps); + m_CompData.clear(); + if (m_pColorSpace) { + switch (m_Family) { + case PDFCS_DEVICEGRAY: + case PDFCS_DEVICERGB: + case PDFCS_DEVICECMYK: { + uint32_t dwMinComps = ComponentsForFamily(m_Family); + if (m_pColorSpace->CountComponents() < dwMinComps || + m_nComponents < dwMinComps) { + return false; + } + break; + } + case PDFCS_LAB: { + if (m_nComponents != 3 || m_pColorSpace->CountComponents() < 3) + return false; + break; + } + case PDFCS_ICCBASED: { + if (!IsAllowedICCComponents(m_nComponents) || + !IsAllowedICCComponents(m_pColorSpace->CountComponents()) || + m_pColorSpace->CountComponents() < m_nComponents) { + return false; + } + break; + } + default: { + if (m_pColorSpace->CountComponents() != m_nComponents) + return false; + break; + } + } + } else { + if (m_Family == PDFCS_LAB && m_nComponents != 3) + return false; + } + if (!GetDecodeAndMaskArray(&m_bDefaultDecode, &m_bColorKey)) + return false; + + m_bpc = bpc; + m_pDecoder = pJpegModule->CreateDecoder(src_data, src_size, m_Width, m_Height, + m_nComponents, bTransform); + return true; +} + +RetainPtr CPDF_DIBBase::LoadJpxBitmap() { + CCodec_JpxModule* pJpxModule = CPDF_ModuleMgr::Get()->GetJpxModule(); + auto context = pdfium::MakeUnique(pJpxModule); + context->set_decoder(pJpxModule->CreateDecoder( + m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(), m_pColorSpace.Get())); + if (!context->decoder()) + return nullptr; + + uint32_t width = 0; + uint32_t height = 0; + uint32_t components = 0; + pJpxModule->GetImageInfo(context->decoder(), &width, &height, &components); + if (static_cast(width) < m_Width || static_cast(height) < m_Height) + return nullptr; + + bool bSwapRGB = false; + if (m_pColorSpace) { + if (components != m_pColorSpace->CountComponents()) + return nullptr; + + if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB)) { + bSwapRGB = true; + m_pColorSpace = nullptr; + } + } else { + if (components == 3) { + bSwapRGB = true; + } else if (components == 4) { + m_pColorSpace = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); + } + m_nComponents = components; + } + + FXDIB_Format format; + if (components == 1) { + format = FXDIB_8bppRgb; + } else if (components <= 3) { + format = FXDIB_Rgb; + } else if (components == 4) { + format = FXDIB_Rgb32; + } else { + width = (width * components + 2) / 3; + format = FXDIB_Rgb; + } + + auto pCachedBitmap = pdfium::MakeRetain(); + if (!pCachedBitmap->Create(width, height, format)) + return nullptr; + + pCachedBitmap->Clear(0xFFFFFFFF); + std::vector output_offsets(components); + for (uint32_t i = 0; i < components; ++i) + output_offsets[i] = i; + if (bSwapRGB) { + output_offsets[0] = 2; + output_offsets[2] = 0; + } + if (!pJpxModule->Decode(context->decoder(), pCachedBitmap->GetBuffer(), + pCachedBitmap->GetPitch(), output_offsets)) { + return nullptr; + } + + if (m_pColorSpace && m_pColorSpace->GetFamily() == PDFCS_INDEXED && + m_bpc < 8) { + int scale = 8 - m_bpc; + for (uint32_t row = 0; row < height; ++row) { + uint8_t* scanline = pCachedBitmap->GetWritableScanline(row); + for (uint32_t col = 0; col < width; ++col) { + *scanline = (*scanline) >> scale; + ++scanline; + } + } + } + m_bpc = 8; + return pCachedBitmap; +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::StartLoadMask() { + m_MatteColor = 0XFFFFFFFF; + m_pMaskStream = m_pDict->GetStreamFor("SMask"); + if (!m_pMaskStream) { + m_pMaskStream = ToStream(m_pDict->GetDirectObjectFor("Mask")); + return m_pMaskStream ? StartLoadMaskDIB() : LoadState::kSuccess; + } + + const CPDF_Array* pMatte = m_pMaskStream->GetDict()->GetArrayFor("Matte"); + if (pMatte && m_pColorSpace && m_Family != PDFCS_PATTERN && + m_pColorSpace->CountComponents() <= m_nComponents) { + std::vector colors(m_nComponents); + for (uint32_t i = 0; i < m_nComponents; i++) + colors[i] = pMatte->GetFloatAt(i); + + float R; + float G; + float B; + m_pColorSpace->GetRGB(colors.data(), &R, &G, &B); + m_MatteColor = ArgbEncode(0, FXSYS_round(R * 255), FXSYS_round(G * 255), + FXSYS_round(B * 255)); + } + return StartLoadMaskDIB(); +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::ContinueLoadMaskDIB( + PauseIndicatorIface* pPause) { + if (!m_pMask) + return LoadState::kSuccess; + + LoadState ret = m_pMask->ContinueLoadDIBBase(pPause); + if (ret == LoadState::kContinue) + return LoadState::kContinue; + + if (m_pColorSpace && m_bStdCS) + m_pColorSpace->EnableStdConversion(false); + + if (ret == LoadState::kFail) { + m_pMask.Reset(); + return LoadState::kFail; + } + return LoadState::kSuccess; +} + +RetainPtr CPDF_DIBBase::DetachMask() { + return std::move(m_pMask); +} + +bool CPDF_DIBBase::IsJBigImage() const { + return m_pStreamAcc->GetImageDecoder() == "JBIG2Decode"; +} + +CPDF_DIBBase::LoadState CPDF_DIBBase::StartLoadMaskDIB() { + m_pMask = pdfium::MakeRetain(); + LoadState ret = + m_pMask->StartLoadDIBBase(m_pDocument.Get(), m_pMaskStream.Get(), false, + nullptr, nullptr, true, 0, false); + if (ret == LoadState::kContinue) { + if (m_Status == LoadState::kFail) + m_Status = LoadState::kContinue; + return LoadState::kContinue; + } + if (ret == LoadState::kFail) + m_pMask.Reset(); + return LoadState::kSuccess; +} + +void CPDF_DIBBase::LoadPalette() { + if (!m_pColorSpace || m_Family == PDFCS_PATTERN) + return; + + if (m_bpc == 0 || m_bpc * m_nComponents > 8) + return; + + if (m_bpc * m_nComponents == 1) { + if (m_bDefaultDecode && + (m_Family == PDFCS_DEVICEGRAY || m_Family == PDFCS_DEVICERGB)) { + return; + } + if (m_pColorSpace->CountComponents() > 3) { + return; + } + float color_values[3]; + color_values[0] = m_CompData[0].m_DecodeMin; + color_values[1] = color_values[0]; + color_values[2] = color_values[0]; + + float R = 0.0f; + float G = 0.0f; + float B = 0.0f; + m_pColorSpace->GetRGB(color_values, &R, &G, &B); + + FX_ARGB argb0 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), + FXSYS_round(B * 255)); + color_values[0] += m_CompData[0].m_DecodeStep; + color_values[1] += m_CompData[0].m_DecodeStep; + color_values[2] += m_CompData[0].m_DecodeStep; + m_pColorSpace->GetRGB(color_values, &R, &G, &B); + FX_ARGB argb1 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), + FXSYS_round(B * 255)); + if (argb0 != 0xFF000000 || argb1 != 0xFFFFFFFF) { + SetPaletteArgb(0, argb0); + SetPaletteArgb(1, argb1); + } + return; + } + if (m_bpc == 8 && m_bDefaultDecode && + m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)) { + return; + } + + int palette_count = 1 << (m_bpc * m_nComponents); + // Using at least 16 elements due to the call m_pColorSpace->GetRGB(). + std::vector color_values(std::max(m_nComponents, 16u)); + for (int i = 0; i < palette_count; i++) { + int color_data = i; + for (uint32_t j = 0; j < m_nComponents; j++) { + int encoded_component = color_data % (1 << m_bpc); + color_data /= 1 << m_bpc; + color_values[j] = m_CompData[j].m_DecodeMin + + m_CompData[j].m_DecodeStep * encoded_component; + } + float R = 0; + float G = 0; + float B = 0; + if (m_nComponents == 1 && m_Family == PDFCS_ICCBASED && + m_pColorSpace->CountComponents() > 1) { + int nComponents = m_pColorSpace->CountComponents(); + std::vector temp_buf(nComponents); + for (int k = 0; k < nComponents; ++k) + temp_buf[k] = color_values[0]; + m_pColorSpace->GetRGB(temp_buf.data(), &R, &G, &B); + } else { + m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); + } + SetPaletteArgb(i, ArgbEncode(255, FXSYS_round(R * 255), + FXSYS_round(G * 255), FXSYS_round(B * 255))); + } +} + +void CPDF_DIBBase::ValidateDictParam() { + m_bpc = m_bpc_orig; + const CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter"); + if (pFilter) { + if (pFilter->IsName()) { + ByteString filter = pFilter->GetString(); + if (filter == "CCITTFaxDecode" || filter == "JBIG2Decode") { + m_bpc = 1; + m_nComponents = 1; + } else if (filter == "RunLengthDecode") { + if (m_bpc != 1) { + m_bpc = 8; + } + } else if (filter == "DCTDecode") { + m_bpc = 8; + } + } else if (const CPDF_Array* pArray = pFilter->AsArray()) { + ByteString filter = pArray->GetStringAt(pArray->GetCount() - 1); + if (filter == "CCITTFaxDecode" || filter == "JBIG2Decode") { + m_bpc = 1; + m_nComponents = 1; + } else if (filter == "DCTDecode") { + // Previously, filter == "RunLengthDecode" was checked in the "if" + // statement as well, but too many documents don't conform to it. + m_bpc = 8; + } + } + } + + if (!IsAllowedBPCValue(m_bpc)) + m_bpc = 0; +} + +void CPDF_DIBBase::TranslateScanline24bpp(uint8_t* dest_scan, + const uint8_t* src_scan) const { + if (m_bpc == 0) + return; + + if (TranslateScanline24bppDefaultDecode(dest_scan, src_scan)) + return; + + // Using at least 16 elements due to the call m_pColorSpace->GetRGB(). + std::vector color_values(std::max(m_nComponents, 16u)); + float R = 0.0f; + float G = 0.0f; + float B = 0.0f; + uint64_t src_bit_pos = 0; + uint64_t src_byte_pos = 0; + size_t dest_byte_pos = 0; + const bool bpp8 = m_bpc == 8; + for (int column = 0; column < m_Width; column++) { + for (uint32_t color = 0; color < m_nComponents; color++) { + if (bpp8) { + uint8_t data = src_scan[src_byte_pos++]; + color_values[color] = m_CompData[color].m_DecodeMin + + m_CompData[color].m_DecodeStep * data; + } else { + unsigned int data = GetBits8(src_scan, src_bit_pos, m_bpc); + color_values[color] = m_CompData[color].m_DecodeMin + + m_CompData[color].m_DecodeStep * data; + src_bit_pos += m_bpc; + } + } + + if (TransMask()) { + float k = 1.0f - color_values[3]; + R = (1.0f - color_values[0]) * k; + G = (1.0f - color_values[1]) * k; + B = (1.0f - color_values[2]) * k; + } else if (m_Family != PDFCS_PATTERN) { + m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); + } + R = pdfium::clamp(R, 0.0f, 1.0f); + G = pdfium::clamp(G, 0.0f, 1.0f); + B = pdfium::clamp(B, 0.0f, 1.0f); + dest_scan[dest_byte_pos] = static_cast(B * 255); + dest_scan[dest_byte_pos + 1] = static_cast(G * 255); + dest_scan[dest_byte_pos + 2] = static_cast(R * 255); + dest_byte_pos += 3; + } +} + +bool CPDF_DIBBase::TranslateScanline24bppDefaultDecode( + uint8_t* dest_scan, + const uint8_t* src_scan) const { + if (!m_bDefaultDecode) + return false; + + if (m_Family != PDFCS_DEVICERGB && m_Family != PDFCS_CALRGB) { + if (m_bpc != 8) + return false; + + if (m_nComponents == m_pColorSpace->CountComponents()) { + m_pColorSpace->TranslateImageLine(dest_scan, src_scan, m_Width, m_Width, + m_Height, TransMask()); + } + return true; + } + + if (m_nComponents != 3) + return true; + + const uint8_t* src_pos = src_scan; + switch (m_bpc) { + case 8: + for (int column = 0; column < m_Width; column++) { + *dest_scan++ = src_pos[2]; + *dest_scan++ = src_pos[1]; + *dest_scan++ = *src_pos; + src_pos += 3; + } + break; + case 16: + for (int col = 0; col < m_Width; col++) { + *dest_scan++ = src_pos[4]; + *dest_scan++ = src_pos[2]; + *dest_scan++ = *src_pos; + src_pos += 6; + } + break; + default: + const unsigned int max_data = (1 << m_bpc) - 1; + uint64_t src_bit_pos = 0; + size_t dest_byte_pos = 0; + for (int column = 0; column < m_Width; column++) { + unsigned int R = GetBits8(src_scan, src_bit_pos, m_bpc); + src_bit_pos += m_bpc; + unsigned int G = GetBits8(src_scan, src_bit_pos, m_bpc); + src_bit_pos += m_bpc; + unsigned int B = GetBits8(src_scan, src_bit_pos, m_bpc); + src_bit_pos += m_bpc; + R = std::min(R, max_data); + G = std::min(G, max_data); + B = std::min(B, max_data); + dest_scan[dest_byte_pos] = B * 255 / max_data; + dest_scan[dest_byte_pos + 1] = G * 255 / max_data; + dest_scan[dest_byte_pos + 2] = R * 255 / max_data; + dest_byte_pos += 3; + } + break; + } + return true; +} + +uint8_t* CPDF_DIBBase::GetBuffer() const { + return m_pCachedBitmap ? m_pCachedBitmap->GetBuffer() : nullptr; +} + +const uint8_t* CPDF_DIBBase::GetScanline(int line) const { + if (m_bpc == 0) + return nullptr; + + FX_SAFE_UINT32 src_pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width); + if (!src_pitch.IsValid()) + return nullptr; + uint32_t src_pitch_value = src_pitch.ValueOrDie(); + + const uint8_t* pSrcLine = nullptr; + if (m_pCachedBitmap && src_pitch_value <= m_pCachedBitmap->GetPitch()) { + if (line >= m_pCachedBitmap->GetHeight()) { + line = m_pCachedBitmap->GetHeight() - 1; + } + pSrcLine = m_pCachedBitmap->GetScanline(line); + } else if (m_pDecoder) { + pSrcLine = m_pDecoder->GetScanline(line); + } else if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch_value) { + pSrcLine = m_pStreamAcc->GetData() + line * src_pitch_value; + } + if (!pSrcLine) { + uint8_t* pLineBuf = m_pMaskedLine ? m_pMaskedLine.get() : m_pLineBuf.get(); + memset(pLineBuf, 0xFF, m_Pitch); + return pLineBuf; + } + + if (m_bpc * m_nComponents == 1) { + if (m_bImageMask && m_bDefaultDecode) { + for (uint32_t i = 0; i < src_pitch_value; i++) + m_pLineBuf.get()[i] = ~pSrcLine[i]; + return m_pLineBuf.get(); + } + + if (!m_bColorKey) { + memcpy(m_pLineBuf.get(), pSrcLine, src_pitch_value); + return m_pLineBuf.get(); + } + + uint32_t reset_argb = m_pPalette ? m_pPalette.get()[0] : 0xFF000000; + uint32_t set_argb = m_pPalette ? m_pPalette.get()[1] : 0xFFFFFFFF; + if (m_CompData[0].m_ColorKeyMin == 0) + reset_argb = 0; + if (m_CompData[0].m_ColorKeyMax == 1) + set_argb = 0; + set_argb = FXARGB_TODIB(set_argb); + reset_argb = FXARGB_TODIB(reset_argb); + uint32_t* dest_scan = reinterpret_cast(m_pMaskedLine.get()); + for (int col = 0; col < m_Width; col++) { + *dest_scan = GetBitValue(pSrcLine, col) ? set_argb : reset_argb; + dest_scan++; + } + return m_pMaskedLine.get(); + } + if (m_bpc * m_nComponents <= 8) { + if (m_bpc == 8) { + memcpy(m_pLineBuf.get(), pSrcLine, src_pitch_value); + } else { + uint64_t src_bit_pos = 0; + for (int col = 0; col < m_Width; col++) { + unsigned int color_index = 0; + for (uint32_t color = 0; color < m_nComponents; color++) { + unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); + color_index |= data << (color * m_bpc); + src_bit_pos += m_bpc; + } + m_pLineBuf.get()[col] = color_index; + } + } + if (!m_bColorKey) + return m_pLineBuf.get(); + + uint8_t* pDestPixel = m_pMaskedLine.get(); + const uint8_t* pSrcPixel = m_pLineBuf.get(); + for (int col = 0; col < m_Width; col++) { + uint8_t index = *pSrcPixel++; + if (m_pPalette) { + *pDestPixel++ = FXARGB_B(m_pPalette.get()[index]); + *pDestPixel++ = FXARGB_G(m_pPalette.get()[index]); + *pDestPixel++ = FXARGB_R(m_pPalette.get()[index]); + } else { + *pDestPixel++ = index; + *pDestPixel++ = index; + *pDestPixel++ = index; + } + *pDestPixel = IsColorIndexOutOfBounds(index, m_CompData[0]) ? 0xFF : 0; + pDestPixel++; + } + return m_pMaskedLine.get(); + } + if (m_bColorKey) { + if (m_nComponents == 3 && m_bpc == 8) { + uint8_t* alpha_channel = m_pMaskedLine.get() + 3; + for (int col = 0; col < m_Width; col++) { + const uint8_t* pPixel = pSrcLine + col * 3; + alpha_channel[col * 4] = + AreColorIndicesOutOfBounds(pPixel, m_CompData.data(), 3) ? 0xFF : 0; + } + } else { + memset(m_pMaskedLine.get(), 0xFF, m_Pitch); + } + } + if (m_pColorSpace) { + TranslateScanline24bpp(m_pLineBuf.get(), pSrcLine); + pSrcLine = m_pLineBuf.get(); + } + if (!m_bColorKey) + return pSrcLine; + + const uint8_t* pSrcPixel = pSrcLine; + uint8_t* pDestPixel = m_pMaskedLine.get(); + for (int col = 0; col < m_Width; col++) { + *pDestPixel++ = *pSrcPixel++; + *pDestPixel++ = *pSrcPixel++; + *pDestPixel++ = *pSrcPixel++; + pDestPixel++; + } + return m_pMaskedLine.get(); +} + +bool CPDF_DIBBase::SkipToScanline(int line, PauseIndicatorIface* pPause) const { + return m_pDecoder && m_pDecoder->SkipToScanline(line, pPause); +} + +void CPDF_DIBBase::DownSampleScanline(int line, + uint8_t* dest_scan, + int dest_bpp, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const { + if (line < 0 || !dest_scan || dest_bpp <= 0 || dest_width <= 0 || + clip_left < 0 || clip_width <= 0) { + return; + } + + uint32_t src_width = m_Width; + FX_SAFE_UINT32 pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width); + if (!pitch.IsValid()) + return; + + const uint8_t* pSrcLine = nullptr; + if (m_pCachedBitmap) { + pSrcLine = m_pCachedBitmap->GetScanline(line); + } else if (m_pDecoder) { + pSrcLine = m_pDecoder->GetScanline(line); + } else { + uint32_t src_pitch = pitch.ValueOrDie(); + pitch *= (line + 1); + if (!pitch.IsValid()) { + return; + } + + if (m_pStreamAcc->GetSize() >= pitch.ValueOrDie()) { + pSrcLine = m_pStreamAcc->GetData() + line * src_pitch; + } + } + int orig_Bpp = m_bpc * m_nComponents / 8; + int dest_Bpp = dest_bpp / 8; + if (!pSrcLine) { + memset(dest_scan, 0xFF, dest_Bpp * clip_width); + return; + } + + FX_SAFE_INT32 max_src_x = clip_left; + max_src_x += clip_width - 1; + max_src_x *= src_width; + max_src_x /= dest_width; + if (!max_src_x.IsValid()) + return; + + if (m_bpc * m_nComponents == 1) { + DownSampleScanline1Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, + dest_width, bFlipX, clip_left, clip_width); + } else if (m_bpc * m_nComponents <= 8) { + DownSampleScanline8Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, + dest_width, bFlipX, clip_left, clip_width); + } else { + DownSampleScanline32Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, + dest_width, bFlipX, clip_left, clip_width); + } +} + +void CPDF_DIBBase::DownSampleScanline1Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const { + if (m_bColorKey && !m_bImageMask) { + uint32_t reset_argb = m_pPalette ? m_pPalette.get()[0] : 0xFF000000; + uint32_t set_argb = m_pPalette ? m_pPalette.get()[1] : 0xFFFFFFFF; + if (m_CompData[0].m_ColorKeyMin == 0) + reset_argb = 0; + if (m_CompData[0].m_ColorKeyMax == 1) + set_argb = 0; + set_argb = FXARGB_TODIB(set_argb); + reset_argb = FXARGB_TODIB(reset_argb); + uint32_t* dest_scan_dword = reinterpret_cast(dest_scan); + for (int i = 0; i < clip_width; i++) { + uint32_t src_x = (clip_left + i) * src_width / dest_width; + if (bFlipX) + src_x = src_width - src_x - 1; + src_x %= src_width; + dest_scan_dword[i] = GetBitValue(pSrcLine, src_x) ? set_argb : reset_argb; + } + return; + } + + uint32_t set_argb = 0xFFFFFFFF; + uint32_t reset_argb = 0; + if (m_bImageMask) { + if (m_bDefaultDecode) { + set_argb = 0; + reset_argb = 0xFFFFFFFF; + } + } else if (m_pPalette && dest_Bpp != 1) { + reset_argb = m_pPalette.get()[0]; + set_argb = m_pPalette.get()[1]; + } + for (int i = 0; i < clip_width; i++) { + uint32_t src_x = (clip_left + i) * src_width / dest_width; + if (bFlipX) + src_x = src_width - src_x - 1; + src_x %= src_width; + int dest_pos = i * dest_Bpp; + uint32_t value_argb = GetBitValue(pSrcLine, src_x) ? set_argb : reset_argb; + if (dest_Bpp == 1) { + dest_scan[dest_pos] = static_cast(value_argb); + } else if (dest_Bpp == 3) { + dest_scan[dest_pos] = FXARGB_B(value_argb); + dest_scan[dest_pos + 1] = FXARGB_G(value_argb); + dest_scan[dest_pos + 2] = FXARGB_R(value_argb); + } else { + *reinterpret_cast(dest_scan + dest_pos) = value_argb; + } + } +} + +void CPDF_DIBBase::DownSampleScanline8Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const { + if (m_bpc < 8) { + uint64_t src_bit_pos = 0; + for (uint32_t col = 0; col < src_width; col++) { + unsigned int color_index = 0; + for (uint32_t color = 0; color < m_nComponents; color++) { + unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); + color_index |= data << (color * m_bpc); + src_bit_pos += m_bpc; + } + m_pLineBuf.get()[col] = color_index; + } + pSrcLine = m_pLineBuf.get(); + } + if (m_bColorKey) { + for (int i = 0; i < clip_width; i++) { + uint32_t src_x = (clip_left + i) * src_width / dest_width; + if (bFlipX) { + src_x = src_width - src_x - 1; + } + src_x %= src_width; + uint8_t* pDestPixel = dest_scan + i * 4; + uint8_t index = pSrcLine[src_x]; + if (m_pPalette) { + *pDestPixel++ = FXARGB_B(m_pPalette.get()[index]); + *pDestPixel++ = FXARGB_G(m_pPalette.get()[index]); + *pDestPixel++ = FXARGB_R(m_pPalette.get()[index]); + } else { + *pDestPixel++ = index; + *pDestPixel++ = index; + *pDestPixel++ = index; + } + *pDestPixel = (index < m_CompData[0].m_ColorKeyMin || + index > m_CompData[0].m_ColorKeyMax) + ? 0xFF + : 0; + } + return; + } + for (int i = 0; i < clip_width; i++) { + uint32_t src_x = (clip_left + i) * src_width / dest_width; + if (bFlipX) + src_x = src_width - src_x - 1; + src_x %= src_width; + uint8_t index = pSrcLine[src_x]; + if (dest_Bpp == 1) { + dest_scan[i] = index; + } else { + int dest_pos = i * dest_Bpp; + FX_ARGB argb = m_pPalette.get()[index]; + dest_scan[dest_pos] = FXARGB_B(argb); + dest_scan[dest_pos + 1] = FXARGB_G(argb); + dest_scan[dest_pos + 2] = FXARGB_R(argb); + } + } +} + +void CPDF_DIBBase::DownSampleScanline32Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const { + // last_src_x used to store the last seen src_x position which should be + // in [0, src_width). Set the initial value to be an invalid src_x value. + uint32_t last_src_x = src_width; + FX_ARGB last_argb = ArgbEncode(0xFF, 0xFF, 0xFF, 0xFF); + float unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1); + for (int i = 0; i < clip_width; i++) { + int dest_x = clip_left + i; + uint32_t src_x = (bFlipX ? (dest_width - dest_x - 1) : dest_x) * + (int64_t)src_width / dest_width; + src_x %= src_width; + + uint8_t* pDestPixel = dest_scan + i * dest_Bpp; + FX_ARGB argb; + if (src_x == last_src_x) { + argb = last_argb; + } else { + CFX_FixedBufGrow extracted_components(m_nComponents); + const uint8_t* pSrcPixel = nullptr; + if (m_bpc % 8 != 0) { + // No need to check for 32-bit overflow, as |src_x| is bounded by + // |src_width| and DownSampleScanline() already checked for overflow + // with the pitch calculation. + size_t num_bits = src_x * m_bpc * m_nComponents; + uint64_t src_bit_pos = num_bits % 8; + pSrcPixel = pSrcLine + num_bits / 8; + for (uint32_t j = 0; j < m_nComponents; ++j) { + extracted_components[j] = static_cast( + GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc); + src_bit_pos += m_bpc; + } + pSrcPixel = extracted_components; + } else { + pSrcPixel = pSrcLine + src_x * orig_Bpp; + if (m_bpc == 16) { + for (uint32_t j = 0; j < m_nComponents; ++j) + extracted_components[j] = pSrcPixel[j * 2]; + pSrcPixel = extracted_components; + } + } + + if (m_pColorSpace) { + uint8_t color[4]; + const bool bTransMask = TransMask(); + if (!m_bDefaultDecode) { + for (uint32_t j = 0; j < m_nComponents; ++j) { + float component_value = static_cast(pSrcPixel[j]); + int color_value = static_cast( + (m_CompData[j].m_DecodeMin + + m_CompData[j].m_DecodeStep * component_value) * + 255.0f + + 0.5f); + extracted_components[j] = pdfium::clamp(color_value, 0, 255); + } + } + const uint8_t* pSrc = + m_bDefaultDecode ? pSrcPixel : extracted_components; + m_pColorSpace->TranslateImageLine(color, pSrc, 1, 0, 0, bTransMask); + argb = ArgbEncode(0xFF, color[2], color[1], color[0]); + } else { + argb = ArgbEncode(0xFF, pSrcPixel[2], pSrcPixel[1], pSrcPixel[0]); + } + if (m_bColorKey) { + int alpha = 0xFF; + if (m_nComponents == 3 && m_bpc == 8) { + alpha = (pSrcPixel[0] < m_CompData[0].m_ColorKeyMin || + pSrcPixel[0] > m_CompData[0].m_ColorKeyMax || + pSrcPixel[1] < m_CompData[1].m_ColorKeyMin || + pSrcPixel[1] > m_CompData[1].m_ColorKeyMax || + pSrcPixel[2] < m_CompData[2].m_ColorKeyMin || + pSrcPixel[2] > m_CompData[2].m_ColorKeyMax) + ? 0xFF + : 0; + } + argb &= 0xFFFFFF; + argb |= alpha << 24; + } + last_src_x = src_x; + last_argb = argb; + } + if (dest_Bpp == 4) { + *reinterpret_cast(pDestPixel) = FXARGB_TODIB(argb); + } else { + *pDestPixel++ = FXARGB_B(argb); + *pDestPixel++ = FXARGB_G(argb); + *pDestPixel = FXARGB_R(argb); + } + } +} + +bool CPDF_DIBBase::TransMask() const { + return m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && + m_Family == PDFCS_DEVICECMYK; +} diff --git a/core/fpdfapi/render/cpdf_dibbase.h b/core/fpdfapi/render/cpdf_dibbase.h new file mode 100644 index 0000000000..a1008470b6 --- /dev/null +++ b/core/fpdfapi/render/cpdf_dibbase.h @@ -0,0 +1,163 @@ +// Copyright 2017 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 + +#ifndef CORE_FPDFAPI_RENDER_CPDF_DIBBASE_H_ +#define CORE_FPDFAPI_RENDER_CPDF_DIBBASE_H_ + +#include +#include +#include + +#include "core/fpdfapi/page/cpdf_clippath.h" +#include "core/fpdfapi/page/cpdf_countedobject.h" +#include "core/fpdfapi/page/cpdf_graphicstates.h" +#include "core/fpdfapi/parser/cpdf_stream_acc.h" +#include "core/fpdfapi/render/cpdf_imageloader.h" +#include "core/fpdfapi/render/cpdf_rendercontext.h" +#include "core/fpdfapi/render/cpdf_renderoptions.h" +#include "core/fxcrt/retain_ptr.h" +#include "core/fxcrt/unowned_ptr.h" +#include "core/fxge/cfx_defaultrenderdevice.h" +#include "core/fxge/dib/cfx_dibbase.h" + +class CCodec_Jbig2Context; +class CCodec_ScanlineDecoder; +class CPDF_Color; +class CPDF_Dictionary; +class CPDF_Document; +class CPDF_Stream; + +struct DIB_COMP_DATA { + float m_DecodeMin; + float m_DecodeStep; + int m_ColorKeyMin; + int m_ColorKeyMax; +}; + +#define FPDF_HUGE_IMAGE_SIZE 60000000 + +class CPDF_DIBBase : public CFX_DIBBase { + public: + enum class LoadState : uint8_t { kFail, kSuccess, kContinue }; + + template + friend RetainPtr pdfium::MakeRetain(Args&&... args); + + bool Load(CPDF_Document* pDoc, const CPDF_Stream* pStream); + + // CFX_DIBBase + bool SkipToScanline(int line, PauseIndicatorIface* pPause) const override; + uint8_t* GetBuffer() const override; + const uint8_t* GetScanline(int line) const override; + void DownSampleScanline(int line, + uint8_t* dest_scan, + int dest_bpp, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const override; + + const CPDF_ColorSpace* GetColorSpace() const { return m_pColorSpace.Get(); } + uint32_t GetMatteColor() const { return m_MatteColor; } + + LoadState StartLoadDIBBase(CPDF_Document* pDoc, + const CPDF_Stream* pStream, + bool bHasMask, + const CPDF_Dictionary* pFormResources, + CPDF_Dictionary* pPageResources, + bool bStdCS, + uint32_t GroupFamily, + bool bLoadMask); + LoadState ContinueLoadDIBBase(PauseIndicatorIface* pPause); + RetainPtr DetachMask(); + + bool IsJBigImage() const; + + private: + CPDF_DIBBase(); + ~CPDF_DIBBase() override; + + LoadState StartLoadMask(); + LoadState StartLoadMaskDIB(); + bool ContinueToLoadMask(); + LoadState ContinueLoadMaskDIB(PauseIndicatorIface* pPause); + bool LoadColorInfo(const CPDF_Dictionary* pFormResources, + const CPDF_Dictionary* pPageResources); + bool GetDecodeAndMaskArray(bool* bDefaultDecode, bool* bColorKey); + RetainPtr LoadJpxBitmap(); + void LoadPalette(); + LoadState CreateDecoder(); + bool CreateDCTDecoder(const uint8_t* src_data, + uint32_t src_size, + const CPDF_Dictionary* pParams); + void TranslateScanline24bpp(uint8_t* dest_scan, + const uint8_t* src_scan) const; + bool TranslateScanline24bppDefaultDecode(uint8_t* dest_scan, + const uint8_t* src_scan) const; + void ValidateDictParam(); + void DownSampleScanline1Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const; + void DownSampleScanline8Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const; + void DownSampleScanline32Bit(int orig_Bpp, + int dest_Bpp, + uint32_t src_width, + const uint8_t* pSrcLine, + uint8_t* dest_scan, + int dest_width, + bool bFlipX, + int clip_left, + int clip_width) const; + bool TransMask() const; + + UnownedPtr m_pDocument; + UnownedPtr m_pStream; + UnownedPtr m_pDict; + RetainPtr m_pStreamAcc; + UnownedPtr m_pColorSpace; + uint32_t m_Family = 0; + uint32_t m_bpc = 0; + uint32_t m_bpc_orig = 0; + uint32_t m_nComponents = 0; + uint32_t m_GroupFamily = 0; + uint32_t m_MatteColor = 0; + bool m_bLoadMask = false; + bool m_bDefaultDecode = true; + bool m_bImageMask = false; + bool m_bDoBpcCheck = true; + bool m_bColorKey = false; + bool m_bHasMask = false; + bool m_bStdCS = false; + std::vector m_CompData; + std::unique_ptr m_pLineBuf; + std::unique_ptr m_pMaskedLine; + RetainPtr m_pCachedBitmap; + RetainPtr m_pMask; + RetainPtr m_pGlobalStream; + std::unique_ptr m_pDecoder; + + // Must come after |m_pCachedBitmap|. + std::unique_ptr m_pJbig2Context; + + UnownedPtr m_pMaskStream; + LoadState m_Status = LoadState::kFail; +}; + +#endif // CORE_FPDFAPI_RENDER_CPDF_DIBBASE_H_ diff --git a/core/fpdfapi/render/cpdf_dibsource.cpp b/core/fpdfapi/render/cpdf_dibsource.cpp deleted file mode 100644 index 0c69852354..0000000000 --- a/core/fpdfapi/render/cpdf_dibsource.cpp +++ /dev/null @@ -1,1350 +0,0 @@ -// Copyright 2017 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "core/fpdfapi/render/cpdf_dibsource.h" - -#include -#include -#include -#include - -#include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/page/cpdf_docpagedata.h" -#include "core/fpdfapi/page/cpdf_image.h" -#include "core/fpdfapi/page/cpdf_imageobject.h" -#include "core/fpdfapi/parser/cpdf_array.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" -#include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/parser/fpdf_parser_decode.h" -#include "core/fpdfapi/render/cpdf_pagerendercache.h" -#include "core/fpdfapi/render/cpdf_renderstatus.h" -#include "core/fxcodec/codec/ccodec_basicmodule.h" -#include "core/fxcodec/codec/ccodec_jbig2module.h" -#include "core/fxcodec/codec/ccodec_jpegmodule.h" -#include "core/fxcodec/codec/ccodec_jpxmodule.h" -#include "core/fxcodec/codec/ccodec_scanlinedecoder.h" -#include "core/fxcodec/codec/cjpx_decoder.h" -#include "core/fxcodec/fx_codec.h" -#include "core/fxcrt/cfx_fixedbufgrow.h" -#include "core/fxcrt/fx_safe_types.h" -#include "core/fxge/dib/cfx_dibitmap.h" -#include "third_party/base/ptr_util.h" - -namespace { - -constexpr int kMaxImageDimension = 0x01FFFF; - -unsigned int GetBits8(const uint8_t* pData, uint64_t bitpos, size_t nbits) { - ASSERT(nbits == 1 || nbits == 2 || nbits == 4 || nbits == 8 || nbits == 16); - ASSERT((bitpos & (nbits - 1)) == 0); - unsigned int byte = pData[bitpos / 8]; - if (nbits == 8) - return byte; - - if (nbits == 16) - return byte * 256 + pData[bitpos / 8 + 1]; - - return (byte >> (8 - nbits - (bitpos % 8))) & ((1 << nbits) - 1); -} - -bool GetBitValue(const uint8_t* pSrc, uint32_t pos) { - return pSrc[pos / 8] & (1 << (7 - pos % 8)); -} - -bool IsAllowedBPCValue(int bpc) { - return bpc == 1 || bpc == 2 || bpc == 4 || bpc == 8 || bpc == 16; -} - -bool IsAllowedICCComponents(int nComp) { - return nComp == 1 || nComp == 3 || nComp == 4; -} - -bool IsColorIndexOutOfBounds(uint8_t index, const DIB_COMP_DATA& comp_datum) { - return index < comp_datum.m_ColorKeyMin || index > comp_datum.m_ColorKeyMax; -} - -bool AreColorIndicesOutOfBounds(const uint8_t* indices, - const DIB_COMP_DATA* comp_data, - size_t count) { - for (size_t i = 0; i < count; ++i) { - if (IsColorIndexOutOfBounds(indices[i], comp_data[i])) - return true; - } - return false; -} - -// Wrapper class to use with std::unique_ptr for CJPX_Decoder. -class JpxBitMapContext { - public: - explicit JpxBitMapContext(CCodec_JpxModule* jpx_module) - : jpx_module_(jpx_module), decoder_(nullptr) {} - - ~JpxBitMapContext() {} - - void set_decoder(std::unique_ptr decoder) { - decoder_ = std::move(decoder); - } - - CJPX_Decoder* decoder() { return decoder_.get(); } - - private: - CCodec_JpxModule* const jpx_module_; // Weak pointer. - std::unique_ptr decoder_; - - // Disallow evil constructors - JpxBitMapContext(const JpxBitMapContext&); - void operator=(const JpxBitMapContext&); -}; - -} // namespace - -CPDF_DIBSource::CPDF_DIBSource() {} - -CPDF_DIBSource::~CPDF_DIBSource() { - if (m_pColorSpace && m_pDocument) { - auto* pPageData = m_pDocument->GetPageData(); - if (pPageData) { - auto* pSpace = m_pColorSpace.Release(); - pPageData->ReleaseColorSpace(pSpace->GetArray()); - } - } -} - -bool CPDF_DIBSource::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream) { - if (!pStream) - return false; - - m_pDocument = pDoc; - m_pDict = pStream->GetDict(); - if (!m_pDict) - return false; - - m_pStream = pStream; - m_Width = m_pDict->GetIntegerFor("Width"); - m_Height = m_pDict->GetIntegerFor("Height"); - if (m_Width <= 0 || m_Height <= 0 || m_Width > kMaxImageDimension || - m_Height > kMaxImageDimension) { - return false; - } - m_GroupFamily = 0; - m_bLoadMask = false; - if (!LoadColorInfo(nullptr, nullptr)) - return false; - - if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) - return false; - - FX_SAFE_UINT32 src_size = - CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height; - if (!src_size.IsValid()) - return false; - - m_pStreamAcc = pdfium::MakeRetain(pStream); - m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true); - if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) - return false; - - if (CreateDecoder() == LoadState::kFail) - return false; - - if (m_bImageMask) { - m_bpp = 1; - m_bpc = 1; - m_nComponents = 1; - m_AlphaFlag = 1; - } else if (m_bpc * m_nComponents == 1) { - m_bpp = 1; - } else if (m_bpc * m_nComponents <= 8) { - m_bpp = 8; - } else { - m_bpp = 24; - } - FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width); - if (!pitch.IsValid()) - return false; - - m_pLineBuf.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); - LoadPalette(); - if (m_bColorKey) { - m_bpp = 32; - m_AlphaFlag = 2; - pitch = CalculatePitch32(m_bpp, m_Width); - if (!pitch.IsValid()) - return false; - - m_pMaskedLine.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); - } - m_Pitch = pitch.ValueOrDie(); - return true; -} - -bool CPDF_DIBSource::ContinueToLoadMask() { - if (m_bImageMask) { - m_bpp = 1; - m_bpc = 1; - m_nComponents = 1; - m_AlphaFlag = 1; - } else if (m_bpc * m_nComponents == 1) { - m_bpp = 1; - } else if (m_bpc * m_nComponents <= 8) { - m_bpp = 8; - } else { - m_bpp = 24; - } - if (!m_bpc || !m_nComponents) { - return false; - } - FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width); - if (!pitch.IsValid()) - return false; - - m_pLineBuf.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); - if (m_pColorSpace && m_bStdCS) { - m_pColorSpace->EnableStdConversion(true); - } - LoadPalette(); - if (m_bColorKey) { - m_bpp = 32; - m_AlphaFlag = 2; - pitch = CalculatePitch32(m_bpp, m_Width); - if (!pitch.IsValid()) - return false; - m_pMaskedLine.reset(FX_Alloc(uint8_t, pitch.ValueOrDie())); - } - m_Pitch = pitch.ValueOrDie(); - return true; -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadDIBSource( - CPDF_Document* pDoc, - const CPDF_Stream* pStream, - bool bHasMask, - const CPDF_Dictionary* pFormResources, - CPDF_Dictionary* pPageResources, - bool bStdCS, - uint32_t GroupFamily, - bool bLoadMask) { - if (!pStream) - return LoadState::kFail; - - m_pDocument = pDoc; - m_pDict = pStream->GetDict(); - m_pStream = pStream; - m_bStdCS = bStdCS; - m_bHasMask = bHasMask; - m_Width = m_pDict->GetIntegerFor("Width"); - m_Height = m_pDict->GetIntegerFor("Height"); - if (m_Width <= 0 || m_Height <= 0 || m_Width > kMaxImageDimension || - m_Height > kMaxImageDimension) { - return LoadState::kFail; - } - m_GroupFamily = GroupFamily; - m_bLoadMask = bLoadMask; - if (!LoadColorInfo(m_pStream->IsInline() ? pFormResources : nullptr, - pPageResources)) { - return LoadState::kFail; - } - if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) - return LoadState::kFail; - - FX_SAFE_UINT32 src_size = - CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height; - if (!src_size.IsValid()) - return LoadState::kFail; - - m_pStreamAcc = pdfium::MakeRetain(pStream); - m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true); - if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) - return LoadState::kFail; - - LoadState iCreatedDecoder = CreateDecoder(); - if (iCreatedDecoder == LoadState::kFail) - return LoadState::kFail; - - if (!ContinueToLoadMask()) - return LoadState::kFail; - - LoadState iLoadedMask = m_bHasMask ? StartLoadMask() : LoadState::kSuccess; - if (iCreatedDecoder == LoadState::kContinue || - iLoadedMask == LoadState::kContinue) { - return LoadState::kContinue; - } - - ASSERT(iCreatedDecoder == LoadState::kSuccess); - ASSERT(iLoadedMask == LoadState::kSuccess); - if (m_pColorSpace && m_bStdCS) - m_pColorSpace->EnableStdConversion(false); - return LoadState::kSuccess; -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::ContinueLoadDIBSource( - PauseIndicatorIface* pPause) { - if (m_Status == LoadState::kContinue) - return ContinueLoadMaskDIB(pPause); - - if (m_Status == LoadState::kFail) - return LoadState::kFail; - - if (m_pStreamAcc->GetImageDecoder() == "JPXDecode") - return LoadState::kFail; - - FXCODEC_STATUS iDecodeStatus; - CCodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module(); - if (!m_pJbig2Context) { - m_pJbig2Context = pdfium::MakeUnique(); - if (m_pStreamAcc->GetImageParam()) { - const CPDF_Stream* pGlobals = - m_pStreamAcc->GetImageParam()->GetStreamFor("JBIG2Globals"); - if (pGlobals) { - m_pGlobalStream = pdfium::MakeRetain(pGlobals); - m_pGlobalStream->LoadAllDataFiltered(); - } - } - iDecodeStatus = pJbig2Module->StartDecode( - m_pJbig2Context.get(), m_pDocument->CodecContext(), m_Width, m_Height, - m_pStreamAcc, m_pGlobalStream, m_pCachedBitmap->GetBuffer(), - m_pCachedBitmap->GetPitch(), pPause); - } else { - iDecodeStatus = pJbig2Module->ContinueDecode(m_pJbig2Context.get(), pPause); - } - - if (iDecodeStatus < 0) { - m_pJbig2Context.reset(); - m_pCachedBitmap.Reset(); - m_pGlobalStream.Reset(); - return LoadState::kFail; - } - if (iDecodeStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE) - return LoadState::kContinue; - - LoadState iContinueStatus = LoadState::kSuccess; - if (m_bHasMask) { - if (ContinueLoadMaskDIB(pPause) == LoadState::kContinue) { - iContinueStatus = LoadState::kContinue; - m_Status = LoadState::kContinue; - } - } - if (iContinueStatus == LoadState::kContinue) - return LoadState::kContinue; - - if (m_pColorSpace && m_bStdCS) - m_pColorSpace->EnableStdConversion(false); - return iContinueStatus; -} - -bool CPDF_DIBSource::LoadColorInfo(const CPDF_Dictionary* pFormResources, - const CPDF_Dictionary* pPageResources) { - m_bpc_orig = m_pDict->GetIntegerFor("BitsPerComponent"); - if (m_pDict->GetIntegerFor("ImageMask")) - m_bImageMask = true; - - if (m_bImageMask || !m_pDict->KeyExist("ColorSpace")) { - if (!m_bImageMask) { - const CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter"); - if (pFilter) { - ByteString filter; - if (pFilter->IsName()) { - filter = pFilter->GetString(); - } else if (const CPDF_Array* pArray = pFilter->AsArray()) { - filter = pArray->GetStringAt(pArray->GetCount() - 1); - } - - if (filter == "JPXDecode") { - m_bDoBpcCheck = false; - return true; - } - } - } - m_bImageMask = true; - m_bpc = m_nComponents = 1; - const CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode"); - m_bDefaultDecode = !pDecode || !pDecode->GetIntegerAt(0); - return true; - } - - const CPDF_Object* pCSObj = m_pDict->GetDirectObjectFor("ColorSpace"); - if (!pCSObj) - return false; - - CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); - if (pFormResources) - m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pFormResources); - if (!m_pColorSpace) - m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pPageResources); - if (!m_pColorSpace) - return false; - - m_Family = m_pColorSpace->GetFamily(); - m_nComponents = m_pColorSpace->CountComponents(); - if (m_Family == PDFCS_ICCBASED && pCSObj->IsName()) { - ByteString cs = pCSObj->GetString(); - if (cs == "DeviceGray") - m_nComponents = 1; - else if (cs == "DeviceRGB") - m_nComponents = 3; - else if (cs == "DeviceCMYK") - m_nComponents = 4; - } - ValidateDictParam(); - return GetDecodeAndMaskArray(&m_bDefaultDecode, &m_bColorKey); -} - -bool CPDF_DIBSource::GetDecodeAndMaskArray(bool* bDefaultDecode, - bool* bColorKey) { - if (!m_pColorSpace) - return false; - - m_CompData.resize(m_nComponents); - int max_data = (1 << m_bpc) - 1; - const CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode"); - if (pDecode) { - for (uint32_t i = 0; i < m_nComponents; i++) { - m_CompData[i].m_DecodeMin = pDecode->GetNumberAt(i * 2); - float max = pDecode->GetNumberAt(i * 2 + 1); - m_CompData[i].m_DecodeStep = (max - m_CompData[i].m_DecodeMin) / max_data; - float def_value; - float def_min; - float def_max; - m_pColorSpace->GetDefaultValue(i, &def_value, &def_min, &def_max); - if (m_Family == PDFCS_INDEXED) - def_max = max_data; - if (def_min != m_CompData[i].m_DecodeMin || def_max != max) - *bDefaultDecode = false; - } - } else { - for (uint32_t i = 0; i < m_nComponents; i++) { - float def_value; - m_pColorSpace->GetDefaultValue(i, &def_value, &m_CompData[i].m_DecodeMin, - &m_CompData[i].m_DecodeStep); - if (m_Family == PDFCS_INDEXED) - m_CompData[i].m_DecodeStep = max_data; - m_CompData[i].m_DecodeStep = - (m_CompData[i].m_DecodeStep - m_CompData[i].m_DecodeMin) / max_data; - } - } - if (m_pDict->KeyExist("SMask")) - return true; - - const CPDF_Object* pMask = m_pDict->GetDirectObjectFor("Mask"); - if (!pMask) - return true; - - if (const CPDF_Array* pArray = pMask->AsArray()) { - if (pArray->GetCount() >= m_nComponents * 2) { - for (uint32_t i = 0; i < m_nComponents; i++) { - int min_num = pArray->GetIntegerAt(i * 2); - int max_num = pArray->GetIntegerAt(i * 2 + 1); - m_CompData[i].m_ColorKeyMin = std::max(min_num, 0); - m_CompData[i].m_ColorKeyMax = std::min(max_num, max_data); - } - } - *bColorKey = true; - } - return true; -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::CreateDecoder() { - ByteString decoder = m_pStreamAcc->GetImageDecoder(); - if (decoder.IsEmpty()) - return LoadState::kSuccess; - - if (m_bDoBpcCheck && m_bpc == 0) - return LoadState::kFail; - - if (decoder == "JPXDecode") { - m_pCachedBitmap = LoadJpxBitmap(); - return m_pCachedBitmap ? LoadState::kSuccess : LoadState::kFail; - } - - if (decoder == "JBIG2Decode") { - m_pCachedBitmap = pdfium::MakeRetain(); - if (!m_pCachedBitmap->Create( - m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) { - m_pCachedBitmap.Reset(); - return LoadState::kFail; - } - m_Status = LoadState::kSuccess; - return LoadState::kContinue; - } - - const uint8_t* src_data = m_pStreamAcc->GetData(); - uint32_t src_size = m_pStreamAcc->GetSize(); - const CPDF_Dictionary* pParams = m_pStreamAcc->GetImageParam(); - if (decoder == "CCITTFaxDecode") { - m_pDecoder = FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, m_Height, - pParams); - } else if (decoder == "FlateDecode") { - m_pDecoder = FPDFAPI_CreateFlateDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams); - } else if (decoder == "RunLengthDecode") { - CCodec_ModuleMgr* pEncoders = CPDF_ModuleMgr::Get()->GetCodecModule(); - m_pDecoder = pEncoders->GetBasicModule()->CreateRunLengthDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc); - } else if (decoder == "DCTDecode") { - if (!CreateDCTDecoder(src_data, src_size, pParams)) - return LoadState::kFail; - } - if (!m_pDecoder) - return LoadState::kFail; - - FX_SAFE_UINT32 requested_pitch = - CalculatePitch8(m_bpc, m_nComponents, m_Width); - if (!requested_pitch.IsValid()) - return LoadState::kFail; - FX_SAFE_UINT32 provided_pitch = CalculatePitch8( - m_pDecoder->GetBPC(), m_pDecoder->CountComps(), m_pDecoder->GetWidth()); - if (!provided_pitch.IsValid()) - return LoadState::kFail; - if (provided_pitch.ValueOrDie() < requested_pitch.ValueOrDie()) - return LoadState::kFail; - return LoadState::kSuccess; -} - -bool CPDF_DIBSource::CreateDCTDecoder(const uint8_t* src_data, - uint32_t src_size, - const CPDF_Dictionary* pParams) { - CCodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule(); - m_pDecoder = pJpegModule->CreateDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, - !pParams || pParams->GetIntegerFor("ColorTransform", 1)); - if (m_pDecoder) - return true; - - bool bTransform = false; - int comps; - int bpc; - if (!pJpegModule->LoadInfo(src_data, src_size, &m_Width, &m_Height, &comps, - &bpc, &bTransform)) { - return false; - } - - if (m_nComponents == static_cast(comps)) { - m_bpc = bpc; - m_pDecoder = pJpegModule->CreateDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, bTransform); - return true; - } - - m_nComponents = static_cast(comps); - m_CompData.clear(); - if (m_pColorSpace) { - switch (m_Family) { - case PDFCS_DEVICEGRAY: - case PDFCS_DEVICERGB: - case PDFCS_DEVICECMYK: { - uint32_t dwMinComps = ComponentsForFamily(m_Family); - if (m_pColorSpace->CountComponents() < dwMinComps || - m_nComponents < dwMinComps) { - return false; - } - break; - } - case PDFCS_LAB: { - if (m_nComponents != 3 || m_pColorSpace->CountComponents() < 3) - return false; - break; - } - case PDFCS_ICCBASED: { - if (!IsAllowedICCComponents(m_nComponents) || - !IsAllowedICCComponents(m_pColorSpace->CountComponents()) || - m_pColorSpace->CountComponents() < m_nComponents) { - return false; - } - break; - } - default: { - if (m_pColorSpace->CountComponents() != m_nComponents) - return false; - break; - } - } - } else { - if (m_Family == PDFCS_LAB && m_nComponents != 3) - return false; - } - if (!GetDecodeAndMaskArray(&m_bDefaultDecode, &m_bColorKey)) - return false; - - m_bpc = bpc; - m_pDecoder = pJpegModule->CreateDecoder(src_data, src_size, m_Width, m_Height, - m_nComponents, bTransform); - return true; -} - -RetainPtr CPDF_DIBSource::LoadJpxBitmap() { - CCodec_JpxModule* pJpxModule = CPDF_ModuleMgr::Get()->GetJpxModule(); - auto context = pdfium::MakeUnique(pJpxModule); - context->set_decoder(pJpxModule->CreateDecoder( - m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(), m_pColorSpace.Get())); - if (!context->decoder()) - return nullptr; - - uint32_t width = 0; - uint32_t height = 0; - uint32_t components = 0; - pJpxModule->GetImageInfo(context->decoder(), &width, &height, &components); - if (static_cast(width) < m_Width || static_cast(height) < m_Height) - return nullptr; - - bool bSwapRGB = false; - if (m_pColorSpace) { - if (components != m_pColorSpace->CountComponents()) - return nullptr; - - if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB)) { - bSwapRGB = true; - m_pColorSpace = nullptr; - } - } else { - if (components == 3) { - bSwapRGB = true; - } else if (components == 4) { - m_pColorSpace = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK); - } - m_nComponents = components; - } - - FXDIB_Format format; - if (components == 1) { - format = FXDIB_8bppRgb; - } else if (components <= 3) { - format = FXDIB_Rgb; - } else if (components == 4) { - format = FXDIB_Rgb32; - } else { - width = (width * components + 2) / 3; - format = FXDIB_Rgb; - } - - auto pCachedBitmap = pdfium::MakeRetain(); - if (!pCachedBitmap->Create(width, height, format)) - return nullptr; - - pCachedBitmap->Clear(0xFFFFFFFF); - std::vector output_offsets(components); - for (uint32_t i = 0; i < components; ++i) - output_offsets[i] = i; - if (bSwapRGB) { - output_offsets[0] = 2; - output_offsets[2] = 0; - } - if (!pJpxModule->Decode(context->decoder(), pCachedBitmap->GetBuffer(), - pCachedBitmap->GetPitch(), output_offsets)) { - return nullptr; - } - - if (m_pColorSpace && m_pColorSpace->GetFamily() == PDFCS_INDEXED && - m_bpc < 8) { - int scale = 8 - m_bpc; - for (uint32_t row = 0; row < height; ++row) { - uint8_t* scanline = pCachedBitmap->GetWritableScanline(row); - for (uint32_t col = 0; col < width; ++col) { - *scanline = (*scanline) >> scale; - ++scanline; - } - } - } - m_bpc = 8; - return pCachedBitmap; -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadMask() { - m_MatteColor = 0XFFFFFFFF; - m_pMaskStream = m_pDict->GetStreamFor("SMask"); - if (!m_pMaskStream) { - m_pMaskStream = ToStream(m_pDict->GetDirectObjectFor("Mask")); - return m_pMaskStream ? StartLoadMaskDIB() : LoadState::kSuccess; - } - - const CPDF_Array* pMatte = m_pMaskStream->GetDict()->GetArrayFor("Matte"); - if (pMatte && m_pColorSpace && m_Family != PDFCS_PATTERN && - m_pColorSpace->CountComponents() <= m_nComponents) { - std::vector colors(m_nComponents); - for (uint32_t i = 0; i < m_nComponents; i++) - colors[i] = pMatte->GetFloatAt(i); - - float R; - float G; - float B; - m_pColorSpace->GetRGB(colors.data(), &R, &G, &B); - m_MatteColor = ArgbEncode(0, FXSYS_round(R * 255), FXSYS_round(G * 255), - FXSYS_round(B * 255)); - } - return StartLoadMaskDIB(); -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::ContinueLoadMaskDIB( - PauseIndicatorIface* pPause) { - if (!m_pMask) - return LoadState::kSuccess; - - LoadState ret = m_pMask->ContinueLoadDIBSource(pPause); - if (ret == LoadState::kContinue) - return LoadState::kContinue; - - if (m_pColorSpace && m_bStdCS) - m_pColorSpace->EnableStdConversion(false); - - if (ret == LoadState::kFail) { - m_pMask.Reset(); - return LoadState::kFail; - } - return LoadState::kSuccess; -} - -RetainPtr CPDF_DIBSource::DetachMask() { - return std::move(m_pMask); -} - -bool CPDF_DIBSource::IsJBigImage() const { - return m_pStreamAcc->GetImageDecoder() == "JBIG2Decode"; -} - -CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadMaskDIB() { - m_pMask = pdfium::MakeRetain(); - LoadState ret = - m_pMask->StartLoadDIBSource(m_pDocument.Get(), m_pMaskStream.Get(), false, - nullptr, nullptr, true, 0, false); - if (ret == LoadState::kContinue) { - if (m_Status == LoadState::kFail) - m_Status = LoadState::kContinue; - return LoadState::kContinue; - } - if (ret == LoadState::kFail) - m_pMask.Reset(); - return LoadState::kSuccess; -} - -void CPDF_DIBSource::LoadPalette() { - if (!m_pColorSpace || m_Family == PDFCS_PATTERN) - return; - - if (m_bpc == 0 || m_bpc * m_nComponents > 8) - return; - - if (m_bpc * m_nComponents == 1) { - if (m_bDefaultDecode && - (m_Family == PDFCS_DEVICEGRAY || m_Family == PDFCS_DEVICERGB)) { - return; - } - if (m_pColorSpace->CountComponents() > 3) { - return; - } - float color_values[3]; - color_values[0] = m_CompData[0].m_DecodeMin; - color_values[1] = color_values[0]; - color_values[2] = color_values[0]; - - float R = 0.0f; - float G = 0.0f; - float B = 0.0f; - m_pColorSpace->GetRGB(color_values, &R, &G, &B); - - FX_ARGB argb0 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), - FXSYS_round(B * 255)); - color_values[0] += m_CompData[0].m_DecodeStep; - color_values[1] += m_CompData[0].m_DecodeStep; - color_values[2] += m_CompData[0].m_DecodeStep; - m_pColorSpace->GetRGB(color_values, &R, &G, &B); - FX_ARGB argb1 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), - FXSYS_round(B * 255)); - if (argb0 != 0xFF000000 || argb1 != 0xFFFFFFFF) { - SetPaletteArgb(0, argb0); - SetPaletteArgb(1, argb1); - } - return; - } - if (m_bpc == 8 && m_bDefaultDecode && - m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY)) { - return; - } - - int palette_count = 1 << (m_bpc * m_nComponents); - // Using at least 16 elements due to the call m_pColorSpace->GetRGB(). - std::vector color_values(std::max(m_nComponents, 16u)); - for (int i = 0; i < palette_count; i++) { - int color_data = i; - for (uint32_t j = 0; j < m_nComponents; j++) { - int encoded_component = color_data % (1 << m_bpc); - color_data /= 1 << m_bpc; - color_values[j] = m_CompData[j].m_DecodeMin + - m_CompData[j].m_DecodeStep * encoded_component; - } - float R = 0; - float G = 0; - float B = 0; - if (m_nComponents == 1 && m_Family == PDFCS_ICCBASED && - m_pColorSpace->CountComponents() > 1) { - int nComponents = m_pColorSpace->CountComponents(); - std::vector temp_buf(nComponents); - for (int k = 0; k < nComponents; ++k) - temp_buf[k] = color_values[0]; - m_pColorSpace->GetRGB(temp_buf.data(), &R, &G, &B); - } else { - m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); - } - SetPaletteArgb(i, ArgbEncode(255, FXSYS_round(R * 255), - FXSYS_round(G * 255), FXSYS_round(B * 255))); - } -} - -void CPDF_DIBSource::ValidateDictParam() { - m_bpc = m_bpc_orig; - const CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter"); - if (pFilter) { - if (pFilter->IsName()) { - ByteString filter = pFilter->GetString(); - if (filter == "CCITTFaxDecode" || filter == "JBIG2Decode") { - m_bpc = 1; - m_nComponents = 1; - } else if (filter == "RunLengthDecode") { - if (m_bpc != 1) { - m_bpc = 8; - } - } else if (filter == "DCTDecode") { - m_bpc = 8; - } - } else if (const CPDF_Array* pArray = pFilter->AsArray()) { - ByteString filter = pArray->GetStringAt(pArray->GetCount() - 1); - if (filter == "CCITTFaxDecode" || filter == "JBIG2Decode") { - m_bpc = 1; - m_nComponents = 1; - } else if (filter == "DCTDecode") { - // Previously, filter == "RunLengthDecode" was checked in the "if" - // statement as well, but too many documents don't conform to it. - m_bpc = 8; - } - } - } - - if (!IsAllowedBPCValue(m_bpc)) - m_bpc = 0; -} - -void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, - const uint8_t* src_scan) const { - if (m_bpc == 0) - return; - - if (TranslateScanline24bppDefaultDecode(dest_scan, src_scan)) - return; - - // Using at least 16 elements due to the call m_pColorSpace->GetRGB(). - std::vector color_values(std::max(m_nComponents, 16u)); - float R = 0.0f; - float G = 0.0f; - float B = 0.0f; - uint64_t src_bit_pos = 0; - uint64_t src_byte_pos = 0; - size_t dest_byte_pos = 0; - const bool bpp8 = m_bpc == 8; - for (int column = 0; column < m_Width; column++) { - for (uint32_t color = 0; color < m_nComponents; color++) { - if (bpp8) { - uint8_t data = src_scan[src_byte_pos++]; - color_values[color] = m_CompData[color].m_DecodeMin + - m_CompData[color].m_DecodeStep * data; - } else { - unsigned int data = GetBits8(src_scan, src_bit_pos, m_bpc); - color_values[color] = m_CompData[color].m_DecodeMin + - m_CompData[color].m_DecodeStep * data; - src_bit_pos += m_bpc; - } - } - - if (TransMask()) { - float k = 1.0f - color_values[3]; - R = (1.0f - color_values[0]) * k; - G = (1.0f - color_values[1]) * k; - B = (1.0f - color_values[2]) * k; - } else if (m_Family != PDFCS_PATTERN) { - m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); - } - R = pdfium::clamp(R, 0.0f, 1.0f); - G = pdfium::clamp(G, 0.0f, 1.0f); - B = pdfium::clamp(B, 0.0f, 1.0f); - dest_scan[dest_byte_pos] = static_cast(B * 255); - dest_scan[dest_byte_pos + 1] = static_cast(G * 255); - dest_scan[dest_byte_pos + 2] = static_cast(R * 255); - dest_byte_pos += 3; - } -} - -bool CPDF_DIBSource::TranslateScanline24bppDefaultDecode( - uint8_t* dest_scan, - const uint8_t* src_scan) const { - if (!m_bDefaultDecode) - return false; - - if (m_Family != PDFCS_DEVICERGB && m_Family != PDFCS_CALRGB) { - if (m_bpc != 8) - return false; - - if (m_nComponents == m_pColorSpace->CountComponents()) { - m_pColorSpace->TranslateImageLine(dest_scan, src_scan, m_Width, m_Width, - m_Height, TransMask()); - } - return true; - } - - if (m_nComponents != 3) - return true; - - const uint8_t* src_pos = src_scan; - switch (m_bpc) { - case 8: - for (int column = 0; column < m_Width; column++) { - *dest_scan++ = src_pos[2]; - *dest_scan++ = src_pos[1]; - *dest_scan++ = *src_pos; - src_pos += 3; - } - break; - case 16: - for (int col = 0; col < m_Width; col++) { - *dest_scan++ = src_pos[4]; - *dest_scan++ = src_pos[2]; - *dest_scan++ = *src_pos; - src_pos += 6; - } - break; - default: - const unsigned int max_data = (1 << m_bpc) - 1; - uint64_t src_bit_pos = 0; - size_t dest_byte_pos = 0; - for (int column = 0; column < m_Width; column++) { - unsigned int R = GetBits8(src_scan, src_bit_pos, m_bpc); - src_bit_pos += m_bpc; - unsigned int G = GetBits8(src_scan, src_bit_pos, m_bpc); - src_bit_pos += m_bpc; - unsigned int B = GetBits8(src_scan, src_bit_pos, m_bpc); - src_bit_pos += m_bpc; - R = std::min(R, max_data); - G = std::min(G, max_data); - B = std::min(B, max_data); - dest_scan[dest_byte_pos] = B * 255 / max_data; - dest_scan[dest_byte_pos + 1] = G * 255 / max_data; - dest_scan[dest_byte_pos + 2] = R * 255 / max_data; - dest_byte_pos += 3; - } - break; - } - return true; -} - -uint8_t* CPDF_DIBSource::GetBuffer() const { - return m_pCachedBitmap ? m_pCachedBitmap->GetBuffer() : nullptr; -} - -const uint8_t* CPDF_DIBSource::GetScanline(int line) const { - if (m_bpc == 0) - return nullptr; - - FX_SAFE_UINT32 src_pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width); - if (!src_pitch.IsValid()) - return nullptr; - uint32_t src_pitch_value = src_pitch.ValueOrDie(); - - const uint8_t* pSrcLine = nullptr; - if (m_pCachedBitmap && src_pitch_value <= m_pCachedBitmap->GetPitch()) { - if (line >= m_pCachedBitmap->GetHeight()) { - line = m_pCachedBitmap->GetHeight() - 1; - } - pSrcLine = m_pCachedBitmap->GetScanline(line); - } else if (m_pDecoder) { - pSrcLine = m_pDecoder->GetScanline(line); - } else if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch_value) { - pSrcLine = m_pStreamAcc->GetData() + line * src_pitch_value; - } - if (!pSrcLine) { - uint8_t* pLineBuf = m_pMaskedLine ? m_pMaskedLine.get() : m_pLineBuf.get(); - memset(pLineBuf, 0xFF, m_Pitch); - return pLineBuf; - } - - if (m_bpc * m_nComponents == 1) { - if (m_bImageMask && m_bDefaultDecode) { - for (uint32_t i = 0; i < src_pitch_value; i++) - m_pLineBuf.get()[i] = ~pSrcLine[i]; - return m_pLineBuf.get(); - } - - if (!m_bColorKey) { - memcpy(m_pLineBuf.get(), pSrcLine, src_pitch_value); - return m_pLineBuf.get(); - } - - uint32_t reset_argb = m_pPalette ? m_pPalette.get()[0] : 0xFF000000; - uint32_t set_argb = m_pPalette ? m_pPalette.get()[1] : 0xFFFFFFFF; - if (m_CompData[0].m_ColorKeyMin == 0) - reset_argb = 0; - if (m_CompData[0].m_ColorKeyMax == 1) - set_argb = 0; - set_argb = FXARGB_TODIB(set_argb); - reset_argb = FXARGB_TODIB(reset_argb); - uint32_t* dest_scan = reinterpret_cast(m_pMaskedLine.get()); - for (int col = 0; col < m_Width; col++) { - *dest_scan = GetBitValue(pSrcLine, col) ? set_argb : reset_argb; - dest_scan++; - } - return m_pMaskedLine.get(); - } - if (m_bpc * m_nComponents <= 8) { - if (m_bpc == 8) { - memcpy(m_pLineBuf.get(), pSrcLine, src_pitch_value); - } else { - uint64_t src_bit_pos = 0; - for (int col = 0; col < m_Width; col++) { - unsigned int color_index = 0; - for (uint32_t color = 0; color < m_nComponents; color++) { - unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); - color_index |= data << (color * m_bpc); - src_bit_pos += m_bpc; - } - m_pLineBuf.get()[col] = color_index; - } - } - if (!m_bColorKey) - return m_pLineBuf.get(); - - uint8_t* pDestPixel = m_pMaskedLine.get(); - const uint8_t* pSrcPixel = m_pLineBuf.get(); - for (int col = 0; col < m_Width; col++) { - uint8_t index = *pSrcPixel++; - if (m_pPalette) { - *pDestPixel++ = FXARGB_B(m_pPalette.get()[index]); - *pDestPixel++ = FXARGB_G(m_pPalette.get()[index]); - *pDestPixel++ = FXARGB_R(m_pPalette.get()[index]); - } else { - *pDestPixel++ = index; - *pDestPixel++ = index; - *pDestPixel++ = index; - } - *pDestPixel = IsColorIndexOutOfBounds(index, m_CompData[0]) ? 0xFF : 0; - pDestPixel++; - } - return m_pMaskedLine.get(); - } - if (m_bColorKey) { - if (m_nComponents == 3 && m_bpc == 8) { - uint8_t* alpha_channel = m_pMaskedLine.get() + 3; - for (int col = 0; col < m_Width; col++) { - const uint8_t* pPixel = pSrcLine + col * 3; - alpha_channel[col * 4] = - AreColorIndicesOutOfBounds(pPixel, m_CompData.data(), 3) ? 0xFF : 0; - } - } else { - memset(m_pMaskedLine.get(), 0xFF, m_Pitch); - } - } - if (m_pColorSpace) { - TranslateScanline24bpp(m_pLineBuf.get(), pSrcLine); - pSrcLine = m_pLineBuf.get(); - } - if (!m_bColorKey) - return pSrcLine; - - const uint8_t* pSrcPixel = pSrcLine; - uint8_t* pDestPixel = m_pMaskedLine.get(); - for (int col = 0; col < m_Width; col++) { - *pDestPixel++ = *pSrcPixel++; - *pDestPixel++ = *pSrcPixel++; - *pDestPixel++ = *pSrcPixel++; - pDestPixel++; - } - return m_pMaskedLine.get(); -} - -bool CPDF_DIBSource::SkipToScanline(int line, - PauseIndicatorIface* pPause) const { - return m_pDecoder && m_pDecoder->SkipToScanline(line, pPause); -} - -void CPDF_DIBSource::DownSampleScanline(int line, - uint8_t* dest_scan, - int dest_bpp, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const { - if (line < 0 || !dest_scan || dest_bpp <= 0 || dest_width <= 0 || - clip_left < 0 || clip_width <= 0) { - return; - } - - uint32_t src_width = m_Width; - FX_SAFE_UINT32 pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width); - if (!pitch.IsValid()) - return; - - const uint8_t* pSrcLine = nullptr; - if (m_pCachedBitmap) { - pSrcLine = m_pCachedBitmap->GetScanline(line); - } else if (m_pDecoder) { - pSrcLine = m_pDecoder->GetScanline(line); - } else { - uint32_t src_pitch = pitch.ValueOrDie(); - pitch *= (line + 1); - if (!pitch.IsValid()) { - return; - } - - if (m_pStreamAcc->GetSize() >= pitch.ValueOrDie()) { - pSrcLine = m_pStreamAcc->GetData() + line * src_pitch; - } - } - int orig_Bpp = m_bpc * m_nComponents / 8; - int dest_Bpp = dest_bpp / 8; - if (!pSrcLine) { - memset(dest_scan, 0xFF, dest_Bpp * clip_width); - return; - } - - FX_SAFE_INT32 max_src_x = clip_left; - max_src_x += clip_width - 1; - max_src_x *= src_width; - max_src_x /= dest_width; - if (!max_src_x.IsValid()) - return; - - if (m_bpc * m_nComponents == 1) { - DownSampleScanline1Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, - dest_width, bFlipX, clip_left, clip_width); - } else if (m_bpc * m_nComponents <= 8) { - DownSampleScanline8Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, - dest_width, bFlipX, clip_left, clip_width); - } else { - DownSampleScanline32Bit(orig_Bpp, dest_Bpp, src_width, pSrcLine, dest_scan, - dest_width, bFlipX, clip_left, clip_width); - } -} - -void CPDF_DIBSource::DownSampleScanline1Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const { - if (m_bColorKey && !m_bImageMask) { - uint32_t reset_argb = m_pPalette ? m_pPalette.get()[0] : 0xFF000000; - uint32_t set_argb = m_pPalette ? m_pPalette.get()[1] : 0xFFFFFFFF; - if (m_CompData[0].m_ColorKeyMin == 0) - reset_argb = 0; - if (m_CompData[0].m_ColorKeyMax == 1) - set_argb = 0; - set_argb = FXARGB_TODIB(set_argb); - reset_argb = FXARGB_TODIB(reset_argb); - uint32_t* dest_scan_dword = reinterpret_cast(dest_scan); - for (int i = 0; i < clip_width; i++) { - uint32_t src_x = (clip_left + i) * src_width / dest_width; - if (bFlipX) - src_x = src_width - src_x - 1; - src_x %= src_width; - dest_scan_dword[i] = GetBitValue(pSrcLine, src_x) ? set_argb : reset_argb; - } - return; - } - - uint32_t set_argb = 0xFFFFFFFF; - uint32_t reset_argb = 0; - if (m_bImageMask) { - if (m_bDefaultDecode) { - set_argb = 0; - reset_argb = 0xFFFFFFFF; - } - } else if (m_pPalette && dest_Bpp != 1) { - reset_argb = m_pPalette.get()[0]; - set_argb = m_pPalette.get()[1]; - } - for (int i = 0; i < clip_width; i++) { - uint32_t src_x = (clip_left + i) * src_width / dest_width; - if (bFlipX) - src_x = src_width - src_x - 1; - src_x %= src_width; - int dest_pos = i * dest_Bpp; - uint32_t value_argb = GetBitValue(pSrcLine, src_x) ? set_argb : reset_argb; - if (dest_Bpp == 1) { - dest_scan[dest_pos] = static_cast(value_argb); - } else if (dest_Bpp == 3) { - dest_scan[dest_pos] = FXARGB_B(value_argb); - dest_scan[dest_pos + 1] = FXARGB_G(value_argb); - dest_scan[dest_pos + 2] = FXARGB_R(value_argb); - } else { - *reinterpret_cast(dest_scan + dest_pos) = value_argb; - } - } -} - -void CPDF_DIBSource::DownSampleScanline8Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const { - if (m_bpc < 8) { - uint64_t src_bit_pos = 0; - for (uint32_t col = 0; col < src_width; col++) { - unsigned int color_index = 0; - for (uint32_t color = 0; color < m_nComponents; color++) { - unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); - color_index |= data << (color * m_bpc); - src_bit_pos += m_bpc; - } - m_pLineBuf.get()[col] = color_index; - } - pSrcLine = m_pLineBuf.get(); - } - if (m_bColorKey) { - for (int i = 0; i < clip_width; i++) { - uint32_t src_x = (clip_left + i) * src_width / dest_width; - if (bFlipX) { - src_x = src_width - src_x - 1; - } - src_x %= src_width; - uint8_t* pDestPixel = dest_scan + i * 4; - uint8_t index = pSrcLine[src_x]; - if (m_pPalette) { - *pDestPixel++ = FXARGB_B(m_pPalette.get()[index]); - *pDestPixel++ = FXARGB_G(m_pPalette.get()[index]); - *pDestPixel++ = FXARGB_R(m_pPalette.get()[index]); - } else { - *pDestPixel++ = index; - *pDestPixel++ = index; - *pDestPixel++ = index; - } - *pDestPixel = (index < m_CompData[0].m_ColorKeyMin || - index > m_CompData[0].m_ColorKeyMax) - ? 0xFF - : 0; - } - return; - } - for (int i = 0; i < clip_width; i++) { - uint32_t src_x = (clip_left + i) * src_width / dest_width; - if (bFlipX) - src_x = src_width - src_x - 1; - src_x %= src_width; - uint8_t index = pSrcLine[src_x]; - if (dest_Bpp == 1) { - dest_scan[i] = index; - } else { - int dest_pos = i * dest_Bpp; - FX_ARGB argb = m_pPalette.get()[index]; - dest_scan[dest_pos] = FXARGB_B(argb); - dest_scan[dest_pos + 1] = FXARGB_G(argb); - dest_scan[dest_pos + 2] = FXARGB_R(argb); - } - } -} - -void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const { - // last_src_x used to store the last seen src_x position which should be - // in [0, src_width). Set the initial value to be an invalid src_x value. - uint32_t last_src_x = src_width; - FX_ARGB last_argb = ArgbEncode(0xFF, 0xFF, 0xFF, 0xFF); - float unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1); - for (int i = 0; i < clip_width; i++) { - int dest_x = clip_left + i; - uint32_t src_x = (bFlipX ? (dest_width - dest_x - 1) : dest_x) * - (int64_t)src_width / dest_width; - src_x %= src_width; - - uint8_t* pDestPixel = dest_scan + i * dest_Bpp; - FX_ARGB argb; - if (src_x == last_src_x) { - argb = last_argb; - } else { - CFX_FixedBufGrow extracted_components(m_nComponents); - const uint8_t* pSrcPixel = nullptr; - if (m_bpc % 8 != 0) { - // No need to check for 32-bit overflow, as |src_x| is bounded by - // |src_width| and DownSampleScanline() already checked for overflow - // with the pitch calculation. - size_t num_bits = src_x * m_bpc * m_nComponents; - uint64_t src_bit_pos = num_bits % 8; - pSrcPixel = pSrcLine + num_bits / 8; - for (uint32_t j = 0; j < m_nComponents; ++j) { - extracted_components[j] = static_cast( - GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc); - src_bit_pos += m_bpc; - } - pSrcPixel = extracted_components; - } else { - pSrcPixel = pSrcLine + src_x * orig_Bpp; - if (m_bpc == 16) { - for (uint32_t j = 0; j < m_nComponents; ++j) - extracted_components[j] = pSrcPixel[j * 2]; - pSrcPixel = extracted_components; - } - } - - if (m_pColorSpace) { - uint8_t color[4]; - const bool bTransMask = TransMask(); - if (!m_bDefaultDecode) { - for (uint32_t j = 0; j < m_nComponents; ++j) { - float component_value = static_cast(pSrcPixel[j]); - int color_value = static_cast( - (m_CompData[j].m_DecodeMin + - m_CompData[j].m_DecodeStep * component_value) * - 255.0f + - 0.5f); - extracted_components[j] = pdfium::clamp(color_value, 0, 255); - } - } - const uint8_t* pSrc = - m_bDefaultDecode ? pSrcPixel : extracted_components; - m_pColorSpace->TranslateImageLine(color, pSrc, 1, 0, 0, bTransMask); - argb = ArgbEncode(0xFF, color[2], color[1], color[0]); - } else { - argb = ArgbEncode(0xFF, pSrcPixel[2], pSrcPixel[1], pSrcPixel[0]); - } - if (m_bColorKey) { - int alpha = 0xFF; - if (m_nComponents == 3 && m_bpc == 8) { - alpha = (pSrcPixel[0] < m_CompData[0].m_ColorKeyMin || - pSrcPixel[0] > m_CompData[0].m_ColorKeyMax || - pSrcPixel[1] < m_CompData[1].m_ColorKeyMin || - pSrcPixel[1] > m_CompData[1].m_ColorKeyMax || - pSrcPixel[2] < m_CompData[2].m_ColorKeyMin || - pSrcPixel[2] > m_CompData[2].m_ColorKeyMax) - ? 0xFF - : 0; - } - argb &= 0xFFFFFF; - argb |= alpha << 24; - } - last_src_x = src_x; - last_argb = argb; - } - if (dest_Bpp == 4) { - *reinterpret_cast(pDestPixel) = FXARGB_TODIB(argb); - } else { - *pDestPixel++ = FXARGB_B(argb); - *pDestPixel++ = FXARGB_G(argb); - *pDestPixel = FXARGB_R(argb); - } - } -} - -bool CPDF_DIBSource::TransMask() const { - return m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && - m_Family == PDFCS_DEVICECMYK; -} diff --git a/core/fpdfapi/render/cpdf_dibsource.h b/core/fpdfapi/render/cpdf_dibsource.h deleted file mode 100644 index 597390cd18..0000000000 --- a/core/fpdfapi/render/cpdf_dibsource.h +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2017 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 - -#ifndef CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ -#define CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ - -#include -#include -#include - -#include "core/fpdfapi/page/cpdf_clippath.h" -#include "core/fpdfapi/page/cpdf_countedobject.h" -#include "core/fpdfapi/page/cpdf_graphicstates.h" -#include "core/fpdfapi/parser/cpdf_stream_acc.h" -#include "core/fpdfapi/render/cpdf_imageloader.h" -#include "core/fpdfapi/render/cpdf_rendercontext.h" -#include "core/fpdfapi/render/cpdf_renderoptions.h" -#include "core/fxcrt/retain_ptr.h" -#include "core/fxcrt/unowned_ptr.h" -#include "core/fxge/cfx_defaultrenderdevice.h" -#include "core/fxge/dib/cfx_dibsource.h" - -class CCodec_Jbig2Context; -class CCodec_ScanlineDecoder; -class CPDF_Color; -class CPDF_Dictionary; -class CPDF_Document; -class CPDF_Stream; - -struct DIB_COMP_DATA { - float m_DecodeMin; - float m_DecodeStep; - int m_ColorKeyMin; - int m_ColorKeyMax; -}; - -#define FPDF_HUGE_IMAGE_SIZE 60000000 - -class CPDF_DIBSource : public CFX_DIBSource { - public: - enum class LoadState : uint8_t { kFail, kSuccess, kContinue }; - - template - friend RetainPtr pdfium::MakeRetain(Args&&... args); - - bool Load(CPDF_Document* pDoc, const CPDF_Stream* pStream); - - // CFX_DIBSource - bool SkipToScanline(int line, PauseIndicatorIface* pPause) const override; - uint8_t* GetBuffer() const override; - const uint8_t* GetScanline(int line) const override; - void DownSampleScanline(int line, - uint8_t* dest_scan, - int dest_bpp, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const override; - - const CPDF_ColorSpace* GetColorSpace() const { return m_pColorSpace.Get(); } - uint32_t GetMatteColor() const { return m_MatteColor; } - - LoadState StartLoadDIBSource(CPDF_Document* pDoc, - const CPDF_Stream* pStream, - bool bHasMask, - const CPDF_Dictionary* pFormResources, - CPDF_Dictionary* pPageResources, - bool bStdCS, - uint32_t GroupFamily, - bool bLoadMask); - LoadState ContinueLoadDIBSource(PauseIndicatorIface* pPause); - RetainPtr DetachMask(); - - bool IsJBigImage() const; - - private: - CPDF_DIBSource(); - ~CPDF_DIBSource() override; - - LoadState StartLoadMask(); - LoadState StartLoadMaskDIB(); - bool ContinueToLoadMask(); - LoadState ContinueLoadMaskDIB(PauseIndicatorIface* pPause); - bool LoadColorInfo(const CPDF_Dictionary* pFormResources, - const CPDF_Dictionary* pPageResources); - bool GetDecodeAndMaskArray(bool* bDefaultDecode, bool* bColorKey); - RetainPtr LoadJpxBitmap(); - void LoadPalette(); - LoadState CreateDecoder(); - bool CreateDCTDecoder(const uint8_t* src_data, - uint32_t src_size, - const CPDF_Dictionary* pParams); - void TranslateScanline24bpp(uint8_t* dest_scan, - const uint8_t* src_scan) const; - bool TranslateScanline24bppDefaultDecode(uint8_t* dest_scan, - const uint8_t* src_scan) const; - void ValidateDictParam(); - void DownSampleScanline1Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const; - void DownSampleScanline8Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const; - void DownSampleScanline32Bit(int orig_Bpp, - int dest_Bpp, - uint32_t src_width, - const uint8_t* pSrcLine, - uint8_t* dest_scan, - int dest_width, - bool bFlipX, - int clip_left, - int clip_width) const; - bool TransMask() const; - - UnownedPtr m_pDocument; - UnownedPtr m_pStream; - UnownedPtr m_pDict; - RetainPtr m_pStreamAcc; - UnownedPtr m_pColorSpace; - uint32_t m_Family = 0; - uint32_t m_bpc = 0; - uint32_t m_bpc_orig = 0; - uint32_t m_nComponents = 0; - uint32_t m_GroupFamily = 0; - uint32_t m_MatteColor = 0; - bool m_bLoadMask = false; - bool m_bDefaultDecode = true; - bool m_bImageMask = false; - bool m_bDoBpcCheck = true; - bool m_bColorKey = false; - bool m_bHasMask = false; - bool m_bStdCS = false; - std::vector m_CompData; - std::unique_ptr m_pLineBuf; - std::unique_ptr m_pMaskedLine; - RetainPtr m_pCachedBitmap; - RetainPtr m_pMask; - RetainPtr m_pGlobalStream; - std::unique_ptr m_pDecoder; - - // Must come after |m_pCachedBitmap|. - std::unique_ptr m_pJbig2Context; - - UnownedPtr m_pMaskStream; - LoadState m_Status = LoadState::kFail; -}; - -#endif // CORE_FPDFAPI_RENDER_CPDF_DIBSOURCE_H_ diff --git a/core/fpdfapi/render/cpdf_docrenderdata.cpp b/core/fpdfapi/render/cpdf_docrenderdata.cpp index 568bf76e97..c86eb9b147 100644 --- a/core/fpdfapi/render/cpdf_docrenderdata.cpp +++ b/core/fpdfapi/render/cpdf_docrenderdata.cpp @@ -12,7 +12,7 @@ #include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_transferfunc.h" #include "core/fpdfapi/render/cpdf_type3cache.h" diff --git a/core/fpdfapi/render/cpdf_imagecacheentry.cpp b/core/fpdfapi/render/cpdf_imagecacheentry.cpp index 615a44d869..681c39e624 100644 --- a/core/fpdfapi/render/cpdf_imagecacheentry.cpp +++ b/core/fpdfapi/render/cpdf_imagecacheentry.cpp @@ -13,7 +13,7 @@ #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fpdfapi/parser/cpdf_stream.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_pagerendercache.h" #include "core/fpdfapi/render/cpdf_rendercontext.h" #include "core/fpdfapi/render/cpdf_renderstatus.h" @@ -37,22 +37,22 @@ void CPDF_ImageCacheEntry::Reset(const RetainPtr& pBitmap) { } static uint32_t FPDF_ImageCache_EstimateImageSize( - const RetainPtr& pDIB) { + const RetainPtr& pDIB) { return pDIB && pDIB->GetBuffer() ? (uint32_t)pDIB->GetHeight() * pDIB->GetPitch() + (uint32_t)pDIB->GetPaletteSize() * 4 : 0; } -RetainPtr CPDF_ImageCacheEntry::DetachBitmap() { +RetainPtr CPDF_ImageCacheEntry::DetachBitmap() { return std::move(m_pCurBitmap); } -RetainPtr CPDF_ImageCacheEntry::DetachMask() { +RetainPtr CPDF_ImageCacheEntry::DetachMask() { return std::move(m_pCurMask); } -CPDF_DIBSource::LoadState CPDF_ImageCacheEntry::StartGetCachedBitmap( +CPDF_DIBBase::LoadState CPDF_ImageCacheEntry::StartGetCachedBitmap( const CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources, bool bStdCS, @@ -64,32 +64,32 @@ CPDF_DIBSource::LoadState CPDF_ImageCacheEntry::StartGetCachedBitmap( if (m_pCachedBitmap) { m_pCurBitmap = m_pCachedBitmap; m_pCurMask = m_pCachedMask; - return CPDF_DIBSource::LoadState::kSuccess; + return CPDF_DIBBase::LoadState::kSuccess; } - m_pCurBitmap = pdfium::MakeRetain(); - CPDF_DIBSource::LoadState ret = - m_pCurBitmap.As()->StartLoadDIBSource( + m_pCurBitmap = pdfium::MakeRetain(); + CPDF_DIBBase::LoadState ret = + m_pCurBitmap.As()->StartLoadDIBBase( m_pDocument.Get(), m_pImage->GetStream(), true, pFormResources, pPageResources, bStdCS, GroupFamily, bLoadMask); - if (ret == CPDF_DIBSource::LoadState::kContinue) - return CPDF_DIBSource::LoadState::kContinue; + if (ret == CPDF_DIBBase::LoadState::kContinue) + return CPDF_DIBBase::LoadState::kContinue; - if (ret == CPDF_DIBSource::LoadState::kSuccess) + if (ret == CPDF_DIBBase::LoadState::kSuccess) ContinueGetCachedBitmap(pRenderStatus); else m_pCurBitmap.Reset(); - return CPDF_DIBSource::LoadState::kFail; + return CPDF_DIBBase::LoadState::kFail; } bool CPDF_ImageCacheEntry::Continue(PauseIndicatorIface* pPause, CPDF_RenderStatus* pRenderStatus) { - CPDF_DIBSource::LoadState ret = - m_pCurBitmap.As()->ContinueLoadDIBSource(pPause); - if (ret == CPDF_DIBSource::LoadState::kContinue) + CPDF_DIBBase::LoadState ret = + m_pCurBitmap.As()->ContinueLoadDIBBase(pPause); + if (ret == CPDF_DIBBase::LoadState::kContinue) return true; - if (ret == CPDF_DIBSource::LoadState::kSuccess) + if (ret == CPDF_DIBBase::LoadState::kSuccess) ContinueGetCachedBitmap(pRenderStatus); else m_pCurBitmap.Reset(); @@ -98,8 +98,8 @@ bool CPDF_ImageCacheEntry::Continue(PauseIndicatorIface* pPause, void CPDF_ImageCacheEntry::ContinueGetCachedBitmap( CPDF_RenderStatus* pRenderStatus) { - m_MatteColor = m_pCurBitmap.As()->GetMatteColor(); - m_pCurMask = m_pCurBitmap.As()->DetachMask(); + m_MatteColor = m_pCurBitmap.As()->GetMatteColor(); + m_pCurMask = m_pCurBitmap.As()->DetachMask(); CPDF_RenderContext* pContext = pRenderStatus->GetContext(); CPDF_PageRenderCache* pPageRenderCache = pContext->GetPageCache(); m_dwTimeCount = pPageRenderCache->GetTimeCount(); diff --git a/core/fpdfapi/render/cpdf_imagecacheentry.h b/core/fpdfapi/render/cpdf_imagecacheentry.h index df13c4b3f8..8a4f919e8d 100644 --- a/core/fpdfapi/render/cpdf_imagecacheentry.h +++ b/core/fpdfapi/render/cpdf_imagecacheentry.h @@ -9,7 +9,7 @@ #include -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fxcrt/fx_system.h" #include "core/fxcrt/retain_ptr.h" #include "core/fxcrt/unowned_ptr.h" @@ -32,7 +32,7 @@ class CPDF_ImageCacheEntry { uint32_t GetTimeCount() const { return m_dwTimeCount; } CPDF_Image* GetImage() const { return m_pImage.Get(); } - CPDF_DIBSource::LoadState StartGetCachedBitmap( + CPDF_DIBBase::LoadState StartGetCachedBitmap( const CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources, bool bStdCS, @@ -43,8 +43,8 @@ class CPDF_ImageCacheEntry { // Returns whether to Continue() or not. bool Continue(PauseIndicatorIface* pPause, CPDF_RenderStatus* pRenderStatus); - RetainPtr DetachBitmap(); - RetainPtr DetachMask(); + RetainPtr DetachBitmap(); + RetainPtr DetachMask(); int m_dwTimeCount; uint32_t m_MatteColor; @@ -55,10 +55,10 @@ class CPDF_ImageCacheEntry { UnownedPtr const m_pDocument; RetainPtr const m_pImage; - RetainPtr m_pCurBitmap; - RetainPtr m_pCurMask; - RetainPtr m_pCachedBitmap; - RetainPtr m_pCachedMask; + RetainPtr m_pCurBitmap; + RetainPtr m_pCurMask; + RetainPtr m_pCachedBitmap; + RetainPtr m_pCachedMask; uint32_t m_dwCacheSize; }; diff --git a/core/fpdfapi/render/cpdf_imageloader.cpp b/core/fpdfapi/render/cpdf_imageloader.cpp index f3a626350b..157bc48d1b 100644 --- a/core/fpdfapi/render/cpdf_imageloader.cpp +++ b/core/fpdfapi/render/cpdf_imageloader.cpp @@ -8,7 +8,7 @@ #include "core/fpdfapi/page/cpdf_image.h" #include "core/fpdfapi/page/cpdf_imageobject.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_imagecacheentry.h" #include "core/fpdfapi/render/cpdf_pagerendercache.h" #include "core/fpdfapi/render/cpdf_renderstatus.h" @@ -34,7 +34,7 @@ bool CPDF_ImageLoader::Start(CPDF_ImageObject* pImage, ret = pCache->StartGetCachedBitmap(m_pImageObject->GetImage(), bStdCS, GroupFamily, bLoadMask, pRenderStatus); } else { - ret = m_pImageObject->GetImage()->StartLoadDIBSource( + ret = m_pImageObject->GetImage()->StartLoadDIBBase( pRenderStatus->GetFormResource(), pRenderStatus->GetPageResource(), bStdCS, GroupFamily, bLoadMask); } diff --git a/core/fpdfapi/render/cpdf_imageloader.h b/core/fpdfapi/render/cpdf_imageloader.h index 629609df48..de29d0e2a9 100644 --- a/core/fpdfapi/render/cpdf_imageloader.h +++ b/core/fpdfapi/render/cpdf_imageloader.h @@ -31,8 +31,8 @@ class CPDF_ImageLoader { CPDF_RenderStatus* pRenderStatus); bool Continue(PauseIndicatorIface* pPause, CPDF_RenderStatus* pRenderStatus); - RetainPtr m_pBitmap; - RetainPtr m_pMask; + RetainPtr m_pBitmap; + RetainPtr m_pMask; uint32_t m_MatteColor; bool m_bCached; diff --git a/core/fpdfapi/render/cpdf_imagerenderer.cpp b/core/fpdfapi/render/cpdf_imagerenderer.cpp index 9f14e8470c..33aca42ee1 100644 --- a/core/fpdfapi/render/cpdf_imagerenderer.cpp +++ b/core/fpdfapi/render/cpdf_imagerenderer.cpp @@ -19,7 +19,7 @@ #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_pagerendercache.h" #include "core/fpdfapi/render/cpdf_rendercontext.h" #include "core/fpdfapi/render/cpdf_renderstatus.h" @@ -29,8 +29,8 @@ #include "core/fxcrt/maybe_owned.h" #include "core/fxge/cfx_defaultrenderdevice.h" #include "core/fxge/cfx_pathdata.h" +#include "core/fxge/dib/cfx_dibbase.h" #include "core/fxge/dib/cfx_dibitmap.h" -#include "core/fxge/dib/cfx_dibsource.h" #include "core/fxge/dib/cfx_imagestretcher.h" #include "core/fxge/dib/cfx_imagetransformer.h" #include "third_party/base/ptr_util.h" @@ -53,7 +53,7 @@ CPDF_ImageRenderer::CPDF_ImageRenderer() CPDF_ImageRenderer::~CPDF_ImageRenderer() {} -bool CPDF_ImageRenderer::StartLoadDIBSource() { +bool CPDF_ImageRenderer::StartLoadDIBBase() { CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect(); FX_RECT image_rect = image_rect_f.GetOuterRect(); if (!image_rect.Valid()) @@ -69,13 +69,13 @@ bool CPDF_ImageRenderer::StartLoadDIBSource() { return false; } -bool CPDF_ImageRenderer::StartRenderDIBSource() { +bool CPDF_ImageRenderer::StartRenderDIBBase() { if (!m_Loader.m_pBitmap) return false; CPDF_GeneralState& state = m_pImageObject->m_GeneralState; m_BitmapAlpha = FXSYS_round(255 * state.GetFillAlpha()); - m_pDIBSource = m_Loader.m_pBitmap; + m_pDIBBase = m_Loader.m_pBitmap; if (m_pRenderStatus->GetRenderOptions().ColorModeIs( CPDF_RenderOptions::kAlpha) && !m_Loader.m_pMask) { @@ -86,7 +86,7 @@ bool CPDF_ImageRenderer::StartRenderDIBSource() { state.SetTransferFunc(m_pRenderStatus->GetTransferFunc(state.GetTR())); if (state.GetTransferFunc() && !state.GetTransferFunc()->GetIdentity()) { - m_pDIBSource = m_Loader.m_pBitmap = + m_pDIBBase = m_Loader.m_pBitmap = state.GetTransferFunc()->TranslateImage(m_Loader.m_pBitmap); if (m_Loader.m_bCached && m_Loader.m_pMask) m_Loader.m_pMask = m_Loader.m_pMask->Clone(nullptr); @@ -96,7 +96,7 @@ bool CPDF_ImageRenderer::StartRenderDIBSource() { m_FillArgb = 0; m_bPatternColor = false; m_pPattern = nullptr; - if (m_pDIBSource->IsAlphaMask()) { + if (m_pDIBBase->IsAlphaMask()) { const CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor(); if (pColor && pColor->IsPattern()) { m_pPattern = pColor->GetPattern(); @@ -106,12 +106,12 @@ bool CPDF_ImageRenderer::StartRenderDIBSource() { m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject.Get()); } else if (m_pRenderStatus->GetRenderOptions().ColorModeIs( CPDF_RenderOptions::kGray)) { - RetainPtr pClone = m_pDIBSource->Clone(nullptr); + RetainPtr pClone = m_pDIBBase->Clone(nullptr); if (!pClone) return false; pClone->ConvertColorScale(0xffffff, 0); - m_pDIBSource = pClone; + m_pDIBBase = pClone; } m_Flags = 0; if (m_pRenderStatus->GetRenderOptions().HasFlag(RENDER_FORCE_DOWNSAMPLE)) @@ -136,7 +136,7 @@ bool CPDF_ImageRenderer::StartRenderDIBSource() { if (m_BitmapAlpha != 255 || !state.HasRef() || !state.GetFillOP() || state.GetOPMode() != 0 || state.GetBlendType() != FXDIB_BLEND_NORMAL || state.GetStrokeAlpha() != 1.0f || state.GetFillAlpha() != 1.0f) { - return StartDIBSource(); + return StartDIBBase(); } CPDF_Document* pDocument = nullptr; CPDF_Page* pPage = nullptr; @@ -154,14 +154,14 @@ bool CPDF_ImageRenderer::StartRenderDIBSource() { CPDF_ColorSpace* pColorSpace = pDocument->LoadColorSpace(pCSObj, pPageResources); if (!pColorSpace) - return StartDIBSource(); + return StartDIBBase(); 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(); + return StartDIBBase(); } bool CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, @@ -183,13 +183,13 @@ bool CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, } m_ImageMatrix = m_pImageObject->matrix(); m_ImageMatrix.Concat(*pObj2Device); - if (StartLoadDIBSource()) + if (StartLoadDIBBase()) return true; - return StartRenderDIBSource(); + return StartRenderDIBBase(); } bool CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, - const RetainPtr& pDIBSource, + const RetainPtr& pDIBBase, FX_ARGB bitmap_argb, int bitmap_alpha, const CFX_Matrix* pImage2Device, @@ -197,14 +197,14 @@ bool CPDF_ImageRenderer::Start(CPDF_RenderStatus* pStatus, bool bStdCS, int blendType) { m_pRenderStatus = pStatus; - m_pDIBSource = pDIBSource; + m_pDIBBase = pDIBBase; m_FillArgb = bitmap_argb; m_BitmapAlpha = bitmap_alpha; m_ImageMatrix = *pImage2Device; m_Flags = flags; m_bStdCS = bStdCS; m_BlendType = blendType; - return StartDIBSource(); + return StartDIBBase(); } bool CPDF_ImageRenderer::NotDrawing() const { @@ -228,7 +228,7 @@ CFX_Matrix CPDF_ImageRenderer::GetDrawMatrix(const FX_RECT& rect) const { void CPDF_ImageRenderer::CalculateDrawImage( CFX_DefaultRenderDevice* pBitmapDevice1, CFX_DefaultRenderDevice* pBitmapDevice2, - const RetainPtr& pDIBSource, + const RetainPtr& pDIBBase, CFX_Matrix* pNewMatrix, const FX_RECT& rect) const { CPDF_RenderStatus bitmap_render(m_pRenderStatus->GetContext(), @@ -238,8 +238,8 @@ void CPDF_ImageRenderer::CalculateDrawImage( bitmap_render.Initialize(nullptr, nullptr); CPDF_ImageRenderer image_render; - if (image_render.Start(&bitmap_render, pDIBSource, 0xffffffff, 255, - pNewMatrix, m_Flags, true, FXDIB_BLEND_NORMAL)) { + if (image_render.Start(&bitmap_render, pDIBBase, 0xffffffff, 255, pNewMatrix, + m_Flags, true, FXDIB_BLEND_NORMAL)) { image_render.Continue(nullptr); } if (m_Loader.m_MatteColor == 0xffffffff) @@ -309,8 +309,8 @@ bool CPDF_ImageRenderer::DrawPatternImage(const CFX_Matrix* pObj2Device) { return true; } bitmap_device2.GetBitmap()->Clear(0); - CalculateDrawImage(&bitmap_device1, &bitmap_device2, m_pDIBSource, - &new_matrix, rect); + CalculateDrawImage(&bitmap_device1, &bitmap_device2, m_pDIBBase, &new_matrix, + rect); bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask); bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap()); bitmap_device1.GetBitmap()->MultiplyAlpha(255); @@ -345,7 +345,7 @@ bool CPDF_ImageRenderer::DrawMaskedImage() { bitmap_render.SetStdCS(true); bitmap_render.Initialize(nullptr, nullptr); CPDF_ImageRenderer image_render; - if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix, + if (image_render.Start(&bitmap_render, m_pDIBBase, 0, 255, &new_matrix, m_Flags, true, FXDIB_BLEND_NORMAL)) { image_render.Continue(nullptr); } @@ -376,12 +376,12 @@ bool CPDF_ImageRenderer::DrawMaskedImage() { return false; } -bool CPDF_ImageRenderer::StartDIBSource() { - if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) { - FX_SAFE_SIZE_T image_size = m_pDIBSource->GetBPP(); +bool CPDF_ImageRenderer::StartDIBBase() { + if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBBase->GetBPP() > 1) { + FX_SAFE_SIZE_T image_size = m_pDIBBase->GetBPP(); image_size /= 8; - image_size *= m_pDIBSource->GetWidth(); - image_size *= m_pDIBSource->GetHeight(); + image_size *= m_pDIBBase->GetWidth(); + image_size *= m_pDIBBase->GetHeight(); if (!image_size.IsValid()) return false; @@ -391,8 +391,8 @@ bool CPDF_ImageRenderer::StartDIBSource() { } } #ifdef _SKIA_SUPPORT_ - RetainPtr premultiplied = m_pDIBSource->Clone(nullptr); - if (m_pDIBSource->HasAlpha()) + RetainPtr premultiplied = m_pDIBBase->Clone(nullptr); + if (m_pDIBBase->HasAlpha()) CFX_SkiaDeviceDriver::PreMultiply(premultiplied); if (m_pRenderStatus->GetRenderDevice()->StartDIBitsWithBlend( premultiplied, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags, @@ -405,7 +405,7 @@ bool CPDF_ImageRenderer::StartDIBSource() { } #else if (m_pRenderStatus->GetRenderDevice()->StartDIBitsWithBlend( - m_pDIBSource, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags, + m_pDIBBase, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags, &m_DeviceHandle, m_BlendType)) { if (m_DeviceHandle) { m_Status = 3; @@ -429,7 +429,7 @@ bool CPDF_ImageRenderer::StartDIBSource() { clip_box.Intersect(image_rect); m_Status = 2; m_pTransformer = pdfium::MakeUnique( - m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box); + m_pDIBBase, &m_ImageMatrix, m_Flags, &clip_box); return true; } if (m_ImageMatrix.a < 0) @@ -440,18 +440,18 @@ bool CPDF_ImageRenderer::StartDIBSource() { int dest_left = dest_width > 0 ? image_rect.left : image_rect.right; int dest_top = dest_height > 0 ? image_rect.top : image_rect.bottom; - if (m_pDIBSource->IsOpaqueImage() && m_BitmapAlpha == 255) { + if (m_pDIBBase->IsOpaqueImage() && m_BitmapAlpha == 255) { if (m_pRenderStatus->GetRenderDevice()->StretchDIBitsWithFlagsAndBlend( - m_pDIBSource, dest_left, dest_top, dest_width, dest_height, m_Flags, + m_pDIBBase, dest_left, dest_top, dest_width, dest_height, m_Flags, m_BlendType)) { return false; } } - if (m_pDIBSource->IsAlphaMask()) { + if (m_pDIBBase->IsAlphaMask()) { if (m_BitmapAlpha != 255) m_FillArgb = FXARGB_MUL_ALPHA(m_FillArgb, m_BitmapAlpha); if (m_pRenderStatus->GetRenderDevice()->StretchBitMaskWithFlags( - m_pDIBSource, dest_left, dest_top, dest_width, dest_height, + m_pDIBBase, dest_left, dest_top, dest_width, dest_height, m_FillArgb, m_Flags)) { return false; } @@ -468,7 +468,7 @@ bool CPDF_ImageRenderer::StartDIBSource() { dest_rect.left - image_rect.left, dest_rect.top - image_rect.top, dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top); RetainPtr pStretched = - m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip); + m_pDIBBase->StretchTo(dest_width, dest_height, m_Flags, &dest_clip); if (pStretched) { m_pRenderStatus->CompositeDIBitmap(pStretched, dest_rect.left, dest_rect.top, m_FillArgb, m_BitmapAlpha, @@ -478,7 +478,7 @@ bool CPDF_ImageRenderer::StartDIBSource() { } bool CPDF_ImageRenderer::StartBitmapAlpha() { - if (m_pDIBSource->IsOpaqueImage()) { + if (m_pDIBBase->IsOpaqueImage()) { CFX_PathData path; path.AppendRect(0, 0, 1, 1); path.Transform(&m_ImageMatrix); @@ -488,11 +488,11 @@ bool CPDF_ImageRenderer::StartBitmapAlpha() { fill_color, 0, FXFILL_WINDING); return false; } - RetainPtr pAlphaMask; - if (m_pDIBSource->IsAlphaMask()) - pAlphaMask = m_pDIBSource; + RetainPtr pAlphaMask; + if (m_pDIBBase->IsAlphaMask()) + pAlphaMask = m_pDIBBase; else - pAlphaMask = m_pDIBSource->CloneAlphaMask(); + pAlphaMask = m_pDIBBase->CloneAlphaMask(); if (fabs(m_ImageMatrix.b) >= 0.5f || fabs(m_ImageMatrix.c) >= 0.5f) { int left; @@ -554,7 +554,7 @@ bool CPDF_ImageRenderer::Continue(PauseIndicatorIface* pPause) { if (m_Loader.Continue(pPause, m_pRenderStatus.Get())) return true; - if (StartRenderDIBSource()) + if (StartRenderDIBBase()) return Continue(pPause); } return false; diff --git a/core/fpdfapi/render/cpdf_imagerenderer.h b/core/fpdfapi/render/cpdf_imagerenderer.h index e6c6d0c1b8..c6ccb0c86d 100644 --- a/core/fpdfapi/render/cpdf_imagerenderer.h +++ b/core/fpdfapi/render/cpdf_imagerenderer.h @@ -15,7 +15,7 @@ #include "core/fxge/dib/cfx_imagerenderer.h" class CFX_DIBitmap; -class CFX_DIBSource; +class CFX_DIBBase; class CFX_DefaultRenderDevice; class CFX_ImageTransformer; class CPDF_ImageObject; @@ -35,7 +35,7 @@ class CPDF_ImageRenderer { int blendType); bool Start(CPDF_RenderStatus* pStatus, - const RetainPtr& pDIBSource, + const RetainPtr& pDIBBase, FX_ARGB bitmap_argb, int bitmap_alpha, const CFX_Matrix* pImage2Device, @@ -48,9 +48,9 @@ class CPDF_ImageRenderer { private: bool StartBitmapAlpha(); - bool StartDIBSource(); - bool StartRenderDIBSource(); - bool StartLoadDIBSource(); + bool StartDIBBase(); + bool StartRenderDIBBase(); + bool StartLoadDIBBase(); bool DrawMaskedImage(); bool DrawPatternImage(const CFX_Matrix* pObj2Device); bool NotDrawing() const; @@ -58,7 +58,7 @@ class CPDF_ImageRenderer { CFX_Matrix GetDrawMatrix(const FX_RECT& rect) const; void CalculateDrawImage(CFX_DefaultRenderDevice* bitmap_device1, CFX_DefaultRenderDevice* bitmap_device2, - const RetainPtr& pDIBSource, + const RetainPtr& pDIBBase, CFX_Matrix* pNewMatrix, const FX_RECT& rect) const; void HandleFilters(); @@ -69,7 +69,7 @@ class CPDF_ImageRenderer { UnownedPtr m_pObj2Device; CFX_Matrix m_ImageMatrix; CPDF_ImageLoader m_Loader; - RetainPtr m_pDIBSource; + RetainPtr m_pDIBBase; int m_BitmapAlpha; bool m_bPatternColor; UnownedPtr m_pPattern; diff --git a/core/fpdfapi/render/cpdf_pagerendercache.cpp b/core/fpdfapi/render/cpdf_pagerendercache.cpp index 1358943454..61602d36f0 100644 --- a/core/fpdfapi/render/cpdf_pagerendercache.cpp +++ b/core/fpdfapi/render/cpdf_pagerendercache.cpp @@ -94,17 +94,17 @@ bool CPDF_PageRenderCache::StartGetCachedBitmap( m_pCurImageCacheEntry = new CPDF_ImageCacheEntry(m_pPage->GetDocument(), pImage); } - CPDF_DIBSource::LoadState ret = m_pCurImageCacheEntry->StartGetCachedBitmap( + CPDF_DIBBase::LoadState ret = m_pCurImageCacheEntry->StartGetCachedBitmap( pRenderStatus->GetFormResource(), m_pPage->m_pPageResources.Get(), bStdCS, GroupFamily, bLoadMask, pRenderStatus); - if (ret == CPDF_DIBSource::LoadState::kContinue) + if (ret == CPDF_DIBBase::LoadState::kContinue) return true; m_nTimeCount++; if (!m_bCurFindCache) m_ImageCache[pStream] = m_pCurImageCacheEntry; - if (ret == CPDF_DIBSource::LoadState::kFail) + if (ret == CPDF_DIBBase::LoadState::kFail) m_nCacheSize += m_pCurImageCacheEntry->EstimateSize(); return false; diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp index 2cbe495ce4..9965cbb945 100644 --- a/core/fpdfapi/render/cpdf_renderstatus.cpp +++ b/core/fpdfapi/render/cpdf_renderstatus.cpp @@ -37,7 +37,7 @@ #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fpdfapi/render/cpdf_charposlist.h" #include "core/fpdfapi/render/cpdf_devicebuffer.h" -#include "core/fpdfapi/render/cpdf_dibsource.h" +#include "core/fpdfapi/render/cpdf_dibbase.h" #include "core/fpdfapi/render/cpdf_docrenderdata.h" #include "core/fpdfapi/render/cpdf_imagerenderer.h" #include "core/fpdfapi/render/cpdf_pagerendercache.h" @@ -1582,7 +1582,7 @@ bool CPDF_RenderStatus::ProcessTransparency(CPDF_PageObject* pPageObj, if (pSMaskDict) { CFX_Matrix smask_matrix = *pPageObj->m_GeneralState.GetSMaskMatrix(); smask_matrix.Concat(*pObj2Device); - RetainPtr pSMaskSource = + RetainPtr pSMaskSource = LoadSMask(pSMaskDict, &rect, &smask_matrix); if (pSMaskSource) bitmap->MultiplyAlpha(pSMaskSource); diff --git a/core/fpdfapi/render/cpdf_transferfunc.cpp b/core/fpdfapi/render/cpdf_transferfunc.cpp index 25717437d3..f67f508e8e 100644 --- a/core/fpdfapi/render/cpdf_transferfunc.cpp +++ b/core/fpdfapi/render/cpdf_transferfunc.cpp @@ -8,7 +8,7 @@ #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fpdfapi/render/cpdf_dibtransferfunc.h" -#include "core/fxge/dib/cfx_dibsource.h" +#include "core/fxge/dib/cfx_dibbase.h" CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {} @@ -20,8 +20,8 @@ FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF colorref) const { m_Samples[FXSYS_GetRValue(colorref)]); } -RetainPtr CPDF_TransferFunc::TranslateImage( - const RetainPtr& pSrc) { +RetainPtr CPDF_TransferFunc::TranslateImage( + const RetainPtr& pSrc) { RetainPtr pHolder(this); auto pDest = pdfium::MakeRetain(pHolder); pDest->LoadSrc(pSrc); diff --git a/core/fpdfapi/render/cpdf_transferfunc.h b/core/fpdfapi/render/cpdf_transferfunc.h index dfc186ec6c..e8964727c6 100644 --- a/core/fpdfapi/render/cpdf_transferfunc.h +++ b/core/fpdfapi/render/cpdf_transferfunc.h @@ -12,7 +12,7 @@ #include "core/fxge/fx_dib.h" class CPDF_Document; -class CFX_DIBSource; +class CFX_DIBBase; class CPDF_TransferFunc : public Retainable { public: @@ -20,7 +20,7 @@ class CPDF_TransferFunc : public Retainable { friend RetainPtr pdfium::MakeRetain(Args&&... args); FX_COLORREF TranslateColor(FX_COLORREF colorref) const; - RetainPtr TranslateImage(const RetainPtr& pSrc); + RetainPtr TranslateImage(const RetainPtr& pSrc); const CPDF_Document* GetDocument() const { return m_pPDFDoc.Get(); } -- cgit v1.2.3