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-rw-r--r--core/fpdfapi/render/cpdf_dibsource.cpp133
-rw-r--r--core/fpdfapi/render/cpdf_dibsource.h26
-rw-r--r--core/fpdfapi/render/cpdf_imagecacheentry.cpp18
3 files changed, 92 insertions, 85 deletions
diff --git a/core/fpdfapi/render/cpdf_dibsource.cpp b/core/fpdfapi/render/cpdf_dibsource.cpp
index 1233992f72..8a752374b6 100644
--- a/core/fpdfapi/render/cpdf_dibsource.cpp
+++ b/core/fpdfapi/render/cpdf_dibsource.cpp
@@ -156,7 +156,7 @@ bool CPDF_DIBSource::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream) {
if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData())
return false;
- if (!CreateDecoder())
+ if (CreateDecoder() == LoadState::kFail)
return false;
if (m_bImageMask) {
@@ -227,16 +227,17 @@ bool CPDF_DIBSource::ContinueToLoadMask() {
return true;
}
-int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc,
- const CPDF_Stream* pStream,
- bool bHasMask,
- CPDF_Dictionary* pFormResources,
- CPDF_Dictionary* pPageResources,
- bool bStdCS,
- uint32_t GroupFamily,
- bool bLoadMask) {
+CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadDIBSource(
+ CPDF_Document* pDoc,
+ const CPDF_Stream* pStream,
+ bool bHasMask,
+ CPDF_Dictionary* pFormResources,
+ CPDF_Dictionary* pPageResources,
+ bool bStdCS,
+ uint32_t GroupFamily,
+ bool bLoadMask) {
if (!pStream)
- return 0;
+ return LoadState::kFail;
m_pDocument = pDoc;
m_pDict = pStream->GetDict();
@@ -247,55 +248,58 @@ int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc,
m_Height = m_pDict->GetIntegerFor("Height");
if (m_Width <= 0 || m_Height <= 0 || m_Width > kMaxImageDimension ||
m_Height > kMaxImageDimension) {
- return 0;
+ return LoadState::kFail;
}
m_GroupFamily = GroupFamily;
m_bLoadMask = bLoadMask;
if (!LoadColorInfo(m_pStream->IsInline() ? pFormResources : nullptr,
pPageResources)) {
- return 0;
+ return LoadState::kFail;
}
if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0))
- return 0;
+ return LoadState::kFail;
FX_SAFE_UINT32 src_size =
CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height;
if (!src_size.IsValid())
- return 0;
+ return LoadState::kFail;
m_pStreamAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true);
if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData())
- return 0;
+ return LoadState::kFail;
- int iCreatedDecoder = CreateDecoder();
- if (!iCreatedDecoder)
- return 0;
+ LoadState iCreatedDecoder = CreateDecoder();
+ if (iCreatedDecoder == LoadState::kFail)
+ return LoadState::kFail;
if (!ContinueToLoadMask())
- return 0;
+ return LoadState::kFail;
- int iLoadedMask = m_bHasMask ? StartLoadMask() : 1;
- if (iCreatedDecoder == 2 || iLoadedMask == 2)
- return 2;
+ LoadState iLoadedMask = m_bHasMask ? StartLoadMask() : LoadState::kSuccess;
+ if (iCreatedDecoder == LoadState::kContinue ||
+ iLoadedMask == LoadState::kContinue) {
+ return LoadState::kContinue;
+ }
- ASSERT(iCreatedDecoder == 1);
- ASSERT(iLoadedMask == 1);
+ ASSERT(iCreatedDecoder == LoadState::kSuccess);
+ ASSERT(iLoadedMask == LoadState::kSuccess);
if (m_pColorSpace && m_bStdCS)
m_pColorSpace->EnableStdConversion(false);
- return 1;
+ return LoadState::kSuccess;
}
-int CPDF_DIBSource::ContinueLoadDIBSource(IFX_PauseIndicator* pPause) {
+CPDF_DIBSource::LoadState CPDF_DIBSource::ContinueLoadDIBSource(
+ IFX_PauseIndicator* pPause) {
if (m_Status == LoadState::kContinue)
return ContinueLoadMaskDIB(pPause);
if (m_Status == LoadState::kFail)
- return 0;
+ return LoadState::kFail;
const ByteString& decoder = m_pStreamAcc->GetImageDecoder();
if (decoder == "JPXDecode")
- return 0;
+ return LoadState::kFail;
FXCODEC_STATUS iDecodeStatus;
CCodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module();
@@ -321,18 +325,18 @@ int CPDF_DIBSource::ContinueLoadDIBSource(IFX_PauseIndicator* pPause) {
m_pJbig2Context.reset();
m_pCachedBitmap.Reset();
m_pGlobalStream.Reset();
- return 0;
+ return LoadState::kFail;
}
if (iDecodeStatus == FXCODEC_STATUS_DECODE_TOBECONTINUE)
- return 2;
+ return LoadState::kContinue;
- int iContinueStatus = 1;
+ LoadState iContinueStatus = LoadState::kSuccess;
if (m_bHasMask) {
iContinueStatus = ContinueLoadMaskDIB(pPause);
m_Status = LoadState::kContinue;
}
- if (iContinueStatus == 2)
- return 2;
+ if (iContinueStatus == LoadState::kContinue)
+ return LoadState::kContinue;
if (m_pColorSpace && m_bStdCS)
m_pColorSpace->EnableStdConversion(false);
@@ -451,27 +455,28 @@ DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(bool* bDefaultDecode,
return pCompData;
}
-int CPDF_DIBSource::CreateDecoder() {
+CPDF_DIBSource::LoadState CPDF_DIBSource::CreateDecoder() {
const ByteString& decoder = m_pStreamAcc->GetImageDecoder();
if (decoder.IsEmpty())
- return 1;
+ return LoadState::kSuccess;
if (m_bDoBpcCheck && m_bpc == 0)
- return 0;
+ return LoadState::kFail;
if (decoder == "JPXDecode") {
m_pCachedBitmap = LoadJpxBitmap();
- return m_pCachedBitmap ? 1 : 0;
+ return m_pCachedBitmap ? LoadState::kSuccess : LoadState::kFail;
}
+
if (decoder == "JBIG2Decode") {
m_pCachedBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
if (!m_pCachedBitmap->Create(
m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) {
m_pCachedBitmap.Reset();
- return 0;
+ return LoadState::kFail;
}
m_Status = LoadState::kSuccess;
- return 2;
+ return LoadState::kContinue;
}
const uint8_t* src_data = m_pStreamAcc->GetData();
@@ -489,22 +494,22 @@ int CPDF_DIBSource::CreateDecoder() {
src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc);
} else if (decoder == "DCTDecode") {
if (!CreateDCTDecoder(src_data, src_size, pParams))
- return 0;
+ return LoadState::kFail;
}
if (!m_pDecoder)
- return 0;
+ return LoadState::kFail;
FX_SAFE_UINT32 requested_pitch =
CalculatePitch8(m_bpc, m_nComponents, m_Width);
if (!requested_pitch.IsValid())
- return 0;
+ return LoadState::kFail;
FX_SAFE_UINT32 provided_pitch = CalculatePitch8(
m_pDecoder->GetBPC(), m_pDecoder->CountComps(), m_pDecoder->GetWidth());
if (!provided_pitch.IsValid())
- return 0;
+ return LoadState::kFail;
if (provided_pitch.ValueOrDie() < requested_pitch.ValueOrDie())
- return 0;
- return 1;
+ return LoadState::kFail;
+ return LoadState::kSuccess;
}
bool CPDF_DIBSource::CreateDCTDecoder(const uint8_t* src_data,
@@ -641,6 +646,7 @@ RetainPtr<CFX_DIBitmap> CPDF_DIBSource::LoadJpxBitmap() {
pCachedBitmap->GetPitch(), output_offsets)) {
return nullptr;
}
+
if (m_pColorSpace && m_pColorSpace->GetFamily() == PDFCS_INDEXED &&
m_bpc < 8) {
int scale = 8 - m_bpc;
@@ -656,7 +662,7 @@ RetainPtr<CFX_DIBitmap> CPDF_DIBSource::LoadJpxBitmap() {
return pCachedBitmap;
}
-int CPDF_DIBSource::StartLoadMask() {
+CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadMask() {
m_MatteColor = 0XFFFFFFFF;
m_pMaskStream = m_pDict->GetStreamFor("SMask");
if (m_pMaskStream) {
@@ -676,45 +682,44 @@ int CPDF_DIBSource::StartLoadMask() {
}
m_pMaskStream = ToStream(m_pDict->GetDirectObjectFor("Mask"));
- return m_pMaskStream ? StartLoadMaskDIB() : 1;
+ return m_pMaskStream ? StartLoadMaskDIB() : LoadState::kSuccess;
}
-int CPDF_DIBSource::ContinueLoadMaskDIB(IFX_PauseIndicator* pPause) {
+CPDF_DIBSource::LoadState CPDF_DIBSource::ContinueLoadMaskDIB(
+ IFX_PauseIndicator* pPause) {
if (!m_pMask)
- return 1;
+ return LoadState::kSuccess;
- int ret = m_pMask->ContinueLoadDIBSource(pPause);
- if (ret == 2)
- return 2;
+ LoadState ret = m_pMask->ContinueLoadDIBSource(pPause);
+ if (ret == LoadState::kContinue)
+ return LoadState::kContinue;
if (m_pColorSpace && m_bStdCS)
m_pColorSpace->EnableStdConversion(false);
- if (!ret) {
+ if (ret == LoadState::kFail) {
m_pMask.Reset();
- return 0;
+ return LoadState::kFail;
}
- return 1;
+ return LoadState::kSuccess;
}
RetainPtr<CPDF_DIBSource> CPDF_DIBSource::DetachMask() {
return std::move(m_pMask);
}
-int CPDF_DIBSource::StartLoadMaskDIB() {
+CPDF_DIBSource::LoadState CPDF_DIBSource::StartLoadMaskDIB() {
m_pMask = pdfium::MakeRetain<CPDF_DIBSource>();
- int ret = m_pMask->StartLoadDIBSource(m_pDocument.Get(), m_pMaskStream.Get(),
- false, nullptr, nullptr, true);
- if (ret == 2) {
+ LoadState ret = m_pMask->StartLoadDIBSource(
+ m_pDocument.Get(), m_pMaskStream.Get(), false, nullptr, nullptr, true);
+ if (ret == LoadState::kContinue) {
if (m_Status == LoadState::kFail)
m_Status = LoadState::kContinue;
- return 2;
+ return LoadState::kContinue;
}
- if (!ret) {
+ if (ret == LoadState::kFail)
m_pMask.Reset();
- return 1;
- }
- return 1;
+ return LoadState::kSuccess;
}
void CPDF_DIBSource::LoadPalette() {
diff --git a/core/fpdfapi/render/cpdf_dibsource.h b/core/fpdfapi/render/cpdf_dibsource.h
index 931fdc4fc8..a3e44c57e7 100644
--- a/core/fpdfapi/render/cpdf_dibsource.h
+++ b/core/fpdfapi/render/cpdf_dibsource.h
@@ -65,30 +65,30 @@ class CPDF_DIBSource : public CFX_DIBSource {
const CPDF_ColorSpace* GetColorSpace() const { return m_pColorSpace; }
uint32_t GetMatteColor() const { return m_MatteColor; }
- int StartLoadDIBSource(CPDF_Document* pDoc,
- const CPDF_Stream* pStream,
- bool bHasMask,
- CPDF_Dictionary* pFormResources,
- CPDF_Dictionary* pPageResources,
- bool bStdCS = false,
- uint32_t GroupFamily = 0,
- bool bLoadMask = false);
- int ContinueLoadDIBSource(IFX_PauseIndicator* pPause);
+ LoadState StartLoadDIBSource(CPDF_Document* pDoc,
+ const CPDF_Stream* pStream,
+ bool bHasMask,
+ CPDF_Dictionary* pFormResources,
+ CPDF_Dictionary* pPageResources,
+ bool bStdCS = false,
+ uint32_t GroupFamily = 0,
+ bool bLoadMask = false);
+ LoadState ContinueLoadDIBSource(IFX_PauseIndicator* pPause);
RetainPtr<CPDF_DIBSource> DetachMask();
private:
CPDF_DIBSource();
- int StartLoadMask();
- int StartLoadMaskDIB();
+ LoadState StartLoadMask();
+ LoadState StartLoadMaskDIB();
bool ContinueToLoadMask();
- int ContinueLoadMaskDIB(IFX_PauseIndicator* pPause);
+ LoadState ContinueLoadMaskDIB(IFX_PauseIndicator* pPause);
bool LoadColorInfo(const CPDF_Dictionary* pFormResources,
const CPDF_Dictionary* pPageResources);
DIB_COMP_DATA* GetDecodeAndMaskArray(bool* bDefaultDecode, bool* bColorKey);
RetainPtr<CFX_DIBitmap> LoadJpxBitmap();
void LoadPalette();
- int CreateDecoder();
+ LoadState CreateDecoder();
bool CreateDCTDecoder(const uint8_t* src_data,
uint32_t src_size,
const CPDF_Dictionary* pParams);
diff --git a/core/fpdfapi/render/cpdf_imagecacheentry.cpp b/core/fpdfapi/render/cpdf_imagecacheentry.cpp
index f4be2af12c..f0b0c33750 100644
--- a/core/fpdfapi/render/cpdf_imagecacheentry.cpp
+++ b/core/fpdfapi/render/cpdf_imagecacheentry.cpp
@@ -68,13 +68,14 @@ CPDF_DIBSource::LoadState CPDF_ImageCacheEntry::StartGetCachedBitmap(
}
m_pCurBitmap = pdfium::MakeRetain<CPDF_DIBSource>();
- int ret = m_pCurBitmap.As<CPDF_DIBSource>()->StartLoadDIBSource(
- m_pDocument.Get(), m_pImage->GetStream(), true, pFormResources,
- pPageResources, bStdCS, GroupFamily, bLoadMask);
- if (ret == 2)
+ CPDF_DIBSource::LoadState ret =
+ m_pCurBitmap.As<CPDF_DIBSource>()->StartLoadDIBSource(
+ 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 == 1)
+ if (ret == CPDF_DIBSource::LoadState::kSuccess)
ContinueGetCachedBitmap(pRenderStatus);
else
m_pCurBitmap.Reset();
@@ -83,11 +84,12 @@ CPDF_DIBSource::LoadState CPDF_ImageCacheEntry::StartGetCachedBitmap(
bool CPDF_ImageCacheEntry::Continue(IFX_PauseIndicator* pPause,
CPDF_RenderStatus* pRenderStatus) {
- int ret = m_pCurBitmap.As<CPDF_DIBSource>()->ContinueLoadDIBSource(pPause);
- if (ret == 2)
+ CPDF_DIBSource::LoadState ret =
+ m_pCurBitmap.As<CPDF_DIBSource>()->ContinueLoadDIBSource(pPause);
+ if (ret == CPDF_DIBSource::LoadState::kContinue)
return true;
- if (ret == 1)
+ if (ret == CPDF_DIBSource::LoadState::kSuccess)
ContinueGetCachedBitmap(pRenderStatus);
else
m_pCurBitmap.Reset();
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 21:42:11 +0000