From 57123944df5d7388036f70ef164a103b67dc9258 Mon Sep 17 00:00:00 2001 From: Oliver Chang Date: Fri, 29 Jan 2016 18:32:02 -0800 Subject: Merge to XFA: Some cleanup of fpdf_render_loadimage.cpp - Generalise GetBits8() - Get rid of C-style casts. - Make CFX_DIBSource::SetDownSampleSize() non const. It's only overriden once and called in one place and it doesn't make sense for it to be const. - Get rid of a macro - Make public member vars of CPDF_DIBSource private - And others... TBR=thestig@chromium.org Original Review URL: https://codereview.chromium.org/1644403003 . (cherry picked from commit 487935f662ba4711caf1c2c06873b676fd3fba3e) Review URL: https://codereview.chromium.org/1649243002 . --- core/include/fxge/fx_dib.h | 2 +- core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp | 2 +- .../fpdfapi/fpdf_render/fpdf_render_loadimage.cpp | 370 +++++++++++---------- core/src/fpdfapi/fpdf_render/render_int.h | 23 +- 4 files changed, 209 insertions(+), 188 deletions(-) diff --git a/core/include/fxge/fx_dib.h b/core/include/fxge/fx_dib.h index f4f4fd2e6f..3043e7547c 100644 --- a/core/include/fxge/fx_dib.h +++ b/core/include/fxge/fx_dib.h @@ -192,7 +192,7 @@ class CFX_DIBSource { int clip_left, int clip_width) const = 0; - virtual void SetDownSampleSize(int width, int height) const {} + virtual void SetDownSampleSize(int width, int height) {} int GetBPP() const { return m_bpp; } diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp index 3e5e27088f..a9294acff4 100644 --- a/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp @@ -292,7 +292,7 @@ int CPDF_ImageCacheEntry::StartGetCachedBitmap(CPDF_Dictionary* pFormResources, return 0; } void CPDF_ImageCacheEntry::ContinueGetCachedBitmap() { - m_MatteColor = ((CPDF_DIBSource*)m_pCurBitmap)->m_MatteColor; + m_MatteColor = ((CPDF_DIBSource*)m_pCurBitmap)->GetMatteColor(); m_pCurMask = ((CPDF_DIBSource*)m_pCurBitmap)->DetachMask(); CPDF_RenderContext* pContext = m_pRenderStatus->GetContext(); CPDF_PageRenderCache* pPageRenderCache = pContext->GetPageCache(); diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp index 452103afca..1f4ba62b0a 100644 --- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp @@ -26,20 +26,11 @@ unsigned int GetBits8(const uint8_t* pData, uint64_t bitpos, size_t nbits) { unsigned int byte = pData[bitpos / 8]; if (nbits == 8) { return byte; - } - if (nbits == 4) { - return (bitpos % 8) ? (byte & 0x0f) : (byte >> 4); - } - if (nbits == 2) { - return (byte >> (6 - bitpos % 8)) & 0x03; - } - if (nbits == 1) { - return (byte >> (7 - bitpos % 8)) & 0x01; - } - if (nbits == 16) { + } else if (nbits == 16) { return byte * 256 + pData[bitpos / 8 + 1]; } - return 0; + + return (byte >> (8 - nbits - (bitpos % 8))) & ((1 << nbits) - 1); } FX_SAFE_DWORD CalculatePitch8(FX_DWORD bpc, FX_DWORD components, int width) { @@ -64,6 +55,13 @@ bool IsAllowedBPCValue(int bpc) { return bpc == 1 || bpc == 2 || bpc == 4 || bpc == 8 || bpc == 16; } +template +T ClampValue(T value, T max_value) { + value = std::min(value, max_value); + value = std::max(0, value); + return value; +} + // Wrapper class to use with std::unique_ptr for CJPX_Decoder. class JpxBitMapContext { public: @@ -97,94 +95,96 @@ CFX_DIBSource* CPDF_Image::LoadDIBSource(CFX_DIBSource** ppMask, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask) const { - CPDF_DIBSource* pSource = new CPDF_DIBSource; - if (pSource->Load(m_pDocument, m_pStream, (CPDF_DIBSource**)ppMask, - pMatteColor, NULL, NULL, bStdCS, GroupFamily, bLoadMask)) { - return pSource; + std::unique_ptr source(new CPDF_DIBSource); + if (source->Load(m_pDocument, m_pStream, + reinterpret_cast(ppMask), pMatteColor, + nullptr, nullptr, bStdCS, GroupFamily, bLoadMask)) { + return source.release(); } - delete pSource; - return NULL; + return nullptr; } + CFX_DIBSource* CPDF_Image::DetachBitmap() { CFX_DIBSource* pBitmap = m_pDIBSource; - m_pDIBSource = NULL; + m_pDIBSource = nullptr; return pBitmap; } + CFX_DIBSource* CPDF_Image::DetachMask() { CFX_DIBSource* pBitmap = m_pMask; - m_pMask = NULL; + m_pMask = nullptr; return pBitmap; } + FX_BOOL CPDF_Image::StartLoadDIBSource(CPDF_Dictionary* pFormResource, CPDF_Dictionary* pPageResource, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask) { - m_pDIBSource = new CPDF_DIBSource; + std::unique_ptr source(new CPDF_DIBSource); int ret = - ((CPDF_DIBSource*)m_pDIBSource) - ->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResource, - pPageResource, bStdCS, GroupFamily, bLoadMask); + source->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResource, + pPageResource, bStdCS, GroupFamily, bLoadMask); if (ret == 2) { + m_pDIBSource = source.release(); return TRUE; } if (!ret) { - delete m_pDIBSource; - m_pDIBSource = NULL; + m_pDIBSource = nullptr; return FALSE; } - m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask(); - m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor; + m_pMask = source->DetachMask(); + m_MatteColor = source->GetMatteColor(); + m_pDIBSource = source.release(); return FALSE; } + FX_BOOL CPDF_Image::Continue(IFX_Pause* pPause) { - int ret = ((CPDF_DIBSource*)m_pDIBSource)->ContinueLoadDIBSource(pPause); + CPDF_DIBSource* pSource = static_cast(m_pDIBSource); + int ret = pSource->ContinueLoadDIBSource(pPause); if (ret == 2) { return TRUE; } if (!ret) { delete m_pDIBSource; - m_pDIBSource = NULL; + m_pDIBSource = nullptr; return FALSE; } - m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask(); - m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor; + m_pMask = pSource->DetachMask(); + m_MatteColor = pSource->GetMatteColor(); return FALSE; } -CPDF_DIBSource::CPDF_DIBSource() { - m_pDocument = NULL; - m_pStreamAcc = NULL; - m_pDict = NULL; - m_bpp = 0; - m_Width = m_Height = 0; - m_pColorSpace = NULL; - m_bDefaultDecode = TRUE; - m_bImageMask = FALSE; - m_bDoBpcCheck = TRUE; - m_pPalette = NULL; - m_pCompData = NULL; - m_bColorKey = FALSE; - m_pMaskedLine = m_pLineBuf = NULL; - m_pDecoder = NULL; - m_nComponents = 0; - m_bpc = 0; - m_bLoadMask = FALSE; - m_Family = 0; - m_pMask = NULL; - m_MatteColor = 0; - m_pJbig2Context = NULL; - m_pGlobalStream = NULL; - m_bStdCS = FALSE; - m_pMaskStream = NULL; - m_Status = 0; - m_bHasMask = FALSE; -} + +CPDF_DIBSource::CPDF_DIBSource() + : m_pDocument(nullptr), + m_pStream(nullptr), + m_pDict(nullptr), + m_pColorSpace(nullptr), + m_Family(0), + m_bpc(0), + m_bpc_orig(0), + m_nComponents(0), + m_GroupFamily(0), + m_MatteColor(0), + m_bLoadMask(FALSE), + m_bDefaultDecode(TRUE), + m_bImageMask(FALSE), + m_bDoBpcCheck(TRUE), + m_bColorKey(FALSE), + m_bHasMask(FALSE), + m_bStdCS(FALSE), + m_pCompData(nullptr), + m_pLineBuf(nullptr), + m_pMaskedLine(nullptr), + m_pJbig2Context(nullptr), + m_pMask(nullptr), + m_pMaskStream(nullptr), + m_Status(0) {} + CPDF_DIBSource::~CPDF_DIBSource() { - delete m_pStreamAcc; FX_Free(m_pMaskedLine); FX_Free(m_pLineBuf); m_pCachedBitmap.reset(); - delete m_pDecoder; FX_Free(m_pCompData); CPDF_ColorSpace* pCS = m_pColorSpace; if (pCS && m_pDocument) { @@ -194,16 +194,18 @@ CPDF_DIBSource::~CPDF_DIBSource() { ICodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module(); pJbig2Module->DestroyJbig2Context(m_pJbig2Context); } - delete m_pGlobalStream; } + CFX_DIBitmap* CPDF_DIBSource::GetBitmap() const { return m_pCachedBitmap ? m_pCachedBitmap.get() : Clone(); } + void CPDF_DIBSource::ReleaseBitmap(CFX_DIBitmap* pBitmap) const { if (pBitmap && pBitmap != m_pCachedBitmap.get()) { delete pBitmap; } } + FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream, CPDF_DIBSource** ppMask, @@ -230,7 +232,7 @@ FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, } m_GroupFamily = GroupFamily; m_bLoadMask = bLoadMask; - if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, + if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? nullptr : pFormResources, pPageResources)) { return FALSE; } @@ -242,7 +244,7 @@ FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, if (!src_size.IsValid()) { return FALSE; } - m_pStreamAcc = new CPDF_StreamAcc; + m_pStreamAcc.reset(new CPDF_StreamAcc); m_pStreamAcc->LoadAllData(pStream, FALSE, src_size.ValueOrDie(), TRUE); if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) { return FALSE; @@ -289,6 +291,7 @@ FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, } return TRUE; } + int CPDF_DIBSource::ContinueToLoadMask() { if (m_bImageMask) { m_bpp = 1; @@ -326,6 +329,7 @@ int CPDF_DIBSource::ContinueToLoadMask() { m_Pitch = pitch.ValueOrDie(); return 1; } + int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, const CPDF_Stream* pStream, FX_BOOL bHasMask, @@ -350,7 +354,7 @@ int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, } m_GroupFamily = GroupFamily; m_bLoadMask = bLoadMask; - if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, + if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? nullptr : pFormResources, pPageResources)) { return 0; } @@ -362,16 +366,16 @@ int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, if (!src_size.IsValid()) { return 0; } - m_pStreamAcc = new CPDF_StreamAcc; + m_pStreamAcc.reset(new CPDF_StreamAcc); m_pStreamAcc->LoadAllData(pStream, FALSE, src_size.ValueOrDie(), TRUE); if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData()) { return 0; } int ret = CreateDecoder(); + if (!ret) + return ret; + if (ret != 1) { - if (!ret) { - return ret; - } if (!ContinueToLoadMask()) { return 0; } @@ -394,6 +398,7 @@ int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, } return ret; } + int CPDF_DIBSource::ContinueLoadDIBSource(IFX_Pause* pPause) { FXCODEC_STATUS ret; if (m_Status == 1) { @@ -408,20 +413,19 @@ int CPDF_DIBSource::ContinueLoadDIBSource(IFX_Pause* pPause) { CPDF_Stream* pGlobals = m_pStreamAcc->GetImageParam()->GetStreamBy("JBIG2Globals"); if (pGlobals) { - m_pGlobalStream = new CPDF_StreamAcc; + m_pGlobalStream.reset(new CPDF_StreamAcc); m_pGlobalStream->LoadAllData(pGlobals, FALSE); } } - ret = pJbig2Module->StartDecode(m_pJbig2Context, m_pDocument, m_Width, - m_Height, m_pStreamAcc, m_pGlobalStream, - m_pCachedBitmap->GetBuffer(), - m_pCachedBitmap->GetPitch(), pPause); + ret = pJbig2Module->StartDecode( + m_pJbig2Context, m_pDocument, m_Width, m_Height, m_pStreamAcc.get(), + m_pGlobalStream.get(), m_pCachedBitmap->GetBuffer(), + m_pCachedBitmap->GetPitch(), pPause); if (ret < 0) { m_pCachedBitmap.reset(); - delete m_pGlobalStream; - m_pGlobalStream = NULL; + m_pGlobalStream.reset(); pJbig2Module->DestroyJbig2Context(m_pJbig2Context); - m_pJbig2Context = NULL; + m_pJbig2Context = nullptr; return 0; } if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) { @@ -443,10 +447,9 @@ int CPDF_DIBSource::ContinueLoadDIBSource(IFX_Pause* pPause) { FXCODEC_STATUS ret = pJbig2Module->ContinueDecode(m_pJbig2Context, pPause); if (ret < 0) { m_pCachedBitmap.reset(); - delete m_pGlobalStream; - m_pGlobalStream = NULL; + m_pGlobalStream.reset(); pJbig2Module->DestroyJbig2Context(m_pJbig2Context); - m_pJbig2Context = NULL; + m_pJbig2Context = nullptr; return 0; } if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) { @@ -533,7 +536,7 @@ bool CPDF_DIBSource::LoadColorInfo(const CPDF_Dictionary* pFormResources, DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, FX_BOOL& bColorKey) { if (!m_pColorSpace) { - return NULL; + return nullptr; } DIB_COMP_DATA* pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents); int max_data = (1 << m_bpc) - 1; @@ -543,10 +546,12 @@ DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, pCompData[i].m_DecodeMin = pDecode->GetNumberAt(i * 2); FX_FLOAT max = pDecode->GetNumberAt(i * 2 + 1); pCompData[i].m_DecodeStep = (max - pCompData[i].m_DecodeMin) / max_data; - FX_FLOAT def_value, def_min, def_max; + FX_FLOAT def_value; + FX_FLOAT def_min; + FX_FLOAT def_max; m_pColorSpace->GetDefaultValue(i, def_value, def_min, def_max); if (m_Family == PDFCS_INDEXED) { - def_max = (FX_FLOAT)max_data; + def_max = max_data; } if (def_min != pCompData[i].m_DecodeMin || def_max != max) { bDefaultDecode = FALSE; @@ -558,7 +563,7 @@ DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, m_pColorSpace->GetDefaultValue(i, def_value, pCompData[i].m_DecodeMin, pCompData[i].m_DecodeStep); if (m_Family == PDFCS_INDEXED) { - pCompData[i].m_DecodeStep = (FX_FLOAT)max_data; + pCompData[i].m_DecodeStep = max_data; } pCompData[i].m_DecodeStep = (pCompData[i].m_DecodeStep - pCompData[i].m_DecodeMin) / max_data; @@ -583,12 +588,14 @@ DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, } return pCompData; } + ICodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder( const uint8_t* src_buf, FX_DWORD src_size, int width, int height, const CPDF_Dictionary* pParams); + ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder( const uint8_t* src_buf, FX_DWORD src_size, @@ -597,6 +604,7 @@ ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder( int nComps, int bpc, const CPDF_Dictionary* pParams); + int CPDF_DIBSource::CreateDecoder() { const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder(); if (decoder.IsEmpty()) { @@ -609,12 +617,12 @@ int CPDF_DIBSource::CreateDecoder() { FX_DWORD 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); + m_pDecoder.reset(FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, + m_Height, pParams)); } else if (decoder == "DCTDecode") { - m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder( + m_pDecoder.reset(CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder( src_data, src_size, m_Width, m_Height, m_nComponents, - pParams ? pParams->GetIntegerBy("ColorTransform", 1) : 1); + pParams ? pParams->GetIntegerBy("ColorTransform", 1) : 1)); if (!m_pDecoder) { FX_BOOL bTransform = FALSE; int comps, bpc; @@ -625,7 +633,7 @@ int CPDF_DIBSource::CreateDecoder() { FX_Free(m_pCompData); m_nComponents = comps; if (m_Family == PDFCS_LAB && m_nComponents != 3) { - m_pCompData = NULL; + m_pCompData = nullptr; return 0; } m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey); @@ -634,13 +642,13 @@ int CPDF_DIBSource::CreateDecoder() { } } m_bpc = bpc; - m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, bTransform); + m_pDecoder.reset(CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, bTransform)); } } } else if (decoder == "FlateDecode") { - m_pDecoder = FPDFAPI_CreateFlateDecoder( - src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams); + m_pDecoder.reset(FPDFAPI_CreateFlateDecoder( + src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams)); } else if (decoder == "JPXDecode") { LoadJpxBitmap(); return m_pCachedBitmap ? 1 : 0; @@ -654,11 +662,12 @@ int CPDF_DIBSource::CreateDecoder() { m_Status = 1; return 2; } else if (decoder == "RunLengthDecode") { - m_pDecoder = CPDF_ModuleMgr::Get() - ->GetCodecModule() - ->GetBasicModule() - ->CreateRunLengthDecoder(src_data, src_size, m_Width, - m_Height, m_nComponents, m_bpc); + m_pDecoder.reset(CPDF_ModuleMgr::Get() + ->GetCodecModule() + ->GetBasicModule() + ->CreateRunLengthDecoder(src_data, src_size, m_Width, + m_Height, m_nComponents, + m_bpc)); } if (!m_pDecoder) return 0; @@ -678,6 +687,7 @@ int CPDF_DIBSource::CreateDecoder() { } return 1; } + void CPDF_DIBSource::LoadJpxBitmap() { ICodec_JpxModule* pJpxModule = CPDF_ModuleMgr::Get()->GetJpxModule(); if (!pJpxModule) @@ -693,7 +703,7 @@ void CPDF_DIBSource::LoadJpxBitmap() { FX_DWORD height = 0; FX_DWORD components = 0; pJpxModule->GetImageInfo(context->decoder(), &width, &height, &components); - if ((int)width < m_Width || (int)height < m_Height) + if (static_cast(width) < m_Width || static_cast(height) < m_Height) return; FX_BOOL bSwapRGB = FALSE; @@ -748,7 +758,8 @@ void CPDF_DIBSource::LoadJpxBitmap() { m_bpc < 8) { int scale = 8 - m_bpc; for (FX_DWORD row = 0; row < height; ++row) { - uint8_t* scanline = (uint8_t*)m_pCachedBitmap->GetScanline(row); + uint8_t* scanline = + const_cast(m_pCachedBitmap->GetScanline(row)); for (FX_DWORD col = 0; col < width; ++col) { *scanline = (*scanline) >> scale; ++scanline; @@ -757,6 +768,7 @@ void CPDF_DIBSource::LoadJpxBitmap() { } m_bpc = 8; } + CPDF_DIBSource* CPDF_DIBSource::LoadMask(FX_DWORD& MatteColor) { MatteColor = 0xFFFFFFFF; CPDF_Stream* pSoftMask = m_pDict->GetStreamBy("SMask"); @@ -764,13 +776,12 @@ CPDF_DIBSource* CPDF_DIBSource::LoadMask(FX_DWORD& MatteColor) { CPDF_Array* pMatte = pSoftMask->GetDict()->GetArrayBy("Matte"); if (pMatte && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) { - FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents); + std::vector colors(m_nComponents); for (FX_DWORD i = 0; i < m_nComponents; i++) { - pColor[i] = pMatte->GetFloatAt(i); + colors[i] = pMatte->GetFloatAt(i); } FX_FLOAT R, G, B; - m_pColorSpace->GetRGB(pColor, R, G, B); - FX_Free(pColor); + m_pColorSpace->GetRGB(colors.data(), R, G, B); MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)); } @@ -782,6 +793,7 @@ CPDF_DIBSource* CPDF_DIBSource::LoadMask(FX_DWORD& MatteColor) { return nullptr; } + int CPDF_DIBSource::StratLoadMask() { m_MatteColor = 0XFFFFFFFF; m_pMaskStream = m_pDict->GetStreamBy("SMask"); @@ -790,12 +802,11 @@ int CPDF_DIBSource::StratLoadMask() { if (pMatte && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) { FX_FLOAT R, G, B; - FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents); + std::vector colors(m_nComponents); for (FX_DWORD i = 0; i < m_nComponents; i++) { - pColor[i] = pMatte->GetFloatAt(i); + colors[i] = pMatte->GetFloatAt(i); } - m_pColorSpace->GetRGB(pColor, R, G, B); - FX_Free(pColor); + m_pColorSpace->GetRGB(colors.data(), R, G, B); m_MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)); } @@ -805,6 +816,7 @@ int CPDF_DIBSource::StratLoadMask() { m_pMaskStream = ToStream(m_pDict->GetElementValue("Mask")); return m_pMaskStream ? StartLoadMaskDIB() : 1; } + int CPDF_DIBSource::ContinueLoadMaskDIB(IFX_Pause* pPause) { if (!m_pMask) { return 1; @@ -818,24 +830,28 @@ int CPDF_DIBSource::ContinueLoadMaskDIB(IFX_Pause* pPause) { } if (!ret) { delete m_pMask; - m_pMask = NULL; + m_pMask = nullptr; return ret; } return 1; } + CPDF_DIBSource* CPDF_DIBSource::DetachMask() { CPDF_DIBSource* pDIBSource = m_pMask; - m_pMask = NULL; + m_pMask = nullptr; return pDIBSource; } + CPDF_DIBSource* CPDF_DIBSource::LoadMaskDIB(CPDF_Stream* pMask) { CPDF_DIBSource* pMaskSource = new CPDF_DIBSource; - if (!pMaskSource->Load(m_pDocument, pMask, NULL, NULL, NULL, NULL, TRUE)) { + if (!pMaskSource->Load(m_pDocument, pMask, nullptr, nullptr, nullptr, nullptr, + TRUE)) { delete pMaskSource; - return NULL; + return nullptr; } return pMaskSource; } + int CPDF_DIBSource::StartLoadMaskDIB() { m_pMask = new CPDF_DIBSource; int ret = m_pMask->StartLoadDIBSource(m_pDocument, m_pMaskStream, FALSE, @@ -852,6 +868,7 @@ int CPDF_DIBSource::StartLoadMaskDIB() { } return 1; } + void CPDF_DIBSource::LoadPalette() { if (m_bpc == 0) { return; @@ -907,12 +924,11 @@ void CPDF_DIBSource::LoadPalette() { if (m_nComponents == 1 && m_Family == PDFCS_ICCBASED && m_pColorSpace->CountComponents() > 1) { int nComponents = m_pColorSpace->CountComponents(); - FX_FLOAT* temp_buf = FX_Alloc(FX_FLOAT, nComponents); + std::vector temp_buf(nComponents); for (int i = 0; i < nComponents; i++) { temp_buf[i] = *color_value; } - m_pColorSpace->GetRGB(temp_buf, R, G, B); - FX_Free(temp_buf); + m_pColorSpace->GetRGB(temp_buf.data(), R, G, B); } else { m_pColorSpace->GetRGB(color_value, R, G, B); } @@ -955,14 +971,12 @@ void CPDF_DIBSource::ValidateDictParam() { m_bpc = 0; } -#define NORMALCOLOR_MAX(color, max) \ - (color) > (max) ? (max) : (color) < 0 ? 0 : (color); void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, const uint8_t* src_scan) const { if (m_bpc == 0) { return; } - int max_data = (1 << m_bpc) - 1; + unsigned int max_data = (1 << m_bpc) - 1; if (m_bDefaultDecode) { if (m_Family == PDFCS_DEVICERGB || m_Family == PDFCS_CALRGB) { const uint8_t* src_pos = src_scan; @@ -984,18 +998,18 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, } break; default: - int src_bit_pos = 0; - int dest_byte_pos = 0; + uint64_t src_bit_pos = 0; + size_t dest_byte_pos = 0; for (int column = 0; column < m_Width; column++) { - int R = GetBits8(src_scan, src_bit_pos, m_bpc); + unsigned int R = GetBits8(src_scan, src_bit_pos, m_bpc); src_bit_pos += m_bpc; - int G = GetBits8(src_scan, src_bit_pos, m_bpc); + unsigned int G = GetBits8(src_scan, src_bit_pos, m_bpc); src_bit_pos += m_bpc; - int B = GetBits8(src_scan, src_bit_pos, m_bpc); + unsigned int B = GetBits8(src_scan, src_bit_pos, m_bpc); src_bit_pos += m_bpc; - R = NORMALCOLOR_MAX(R, max_data); - G = NORMALCOLOR_MAX(G, max_data); - B = NORMALCOLOR_MAX(B, max_data); + 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; @@ -1016,11 +1030,11 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, FX_FLOAT* color_values = color_values1; FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f; if (m_bpc == 8) { - int src_byte_pos = 0; - int dest_byte_pos = 0; + uint64_t src_byte_pos = 0; + size_t dest_byte_pos = 0; for (int column = 0; column < m_Width; column++) { for (FX_DWORD color = 0; color < m_nComponents; color++) { - int data = src_scan[src_byte_pos++]; + uint8_t data = src_scan[src_byte_pos++]; color_values[color] = m_pCompData[color].m_DecodeMin + m_pCompData[color].m_DecodeStep * data; } @@ -1032,20 +1046,20 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, } else { m_pColorSpace->GetRGB(color_values, R, G, B); } - R = NORMALCOLOR_MAX(R, 1); - G = NORMALCOLOR_MAX(G, 1); - B = NORMALCOLOR_MAX(B, 1); - dest_scan[dest_byte_pos] = (int32_t)(B * 255); - dest_scan[dest_byte_pos + 1] = (int32_t)(G * 255); - dest_scan[dest_byte_pos + 2] = (int32_t)(R * 255); + R = ClampValue(R, 1.0f); + G = ClampValue(G, 1.0f); + B = ClampValue(B, 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; } } else { - int src_bit_pos = 0; - int dest_byte_pos = 0; + uint64_t src_bit_pos = 0; + size_t dest_byte_pos = 0; for (int column = 0; column < m_Width; column++) { for (FX_DWORD color = 0; color < m_nComponents; color++) { - int data = GetBits8(src_scan, src_bit_pos, m_bpc); + unsigned int data = GetBits8(src_scan, src_bit_pos, m_bpc); color_values[color] = m_pCompData[color].m_DecodeMin + m_pCompData[color].m_DecodeStep * data; src_bit_pos += m_bpc; @@ -1058,22 +1072,21 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, } else { m_pColorSpace->GetRGB(color_values, R, G, B); } - R = NORMALCOLOR_MAX(R, 1); - G = NORMALCOLOR_MAX(G, 1); - B = NORMALCOLOR_MAX(B, 1); - dest_scan[dest_byte_pos] = (int32_t)(B * 255); - dest_scan[dest_byte_pos + 1] = (int32_t)(G * 255); - dest_scan[dest_byte_pos + 2] = (int32_t)(R * 255); + R = ClampValue(R, 1.0f); + G = ClampValue(G, 1.0f); + B = ClampValue(B, 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; } } } + uint8_t* CPDF_DIBSource::GetBuffer() const { - if (m_pCachedBitmap) { - return m_pCachedBitmap->GetBuffer(); - } - return NULL; + return m_pCachedBitmap ? m_pCachedBitmap->GetBuffer() : nullptr; } + const uint8_t* CPDF_DIBSource::GetScanline(int line) const { if (m_bpc == 0) { return nullptr; @@ -1117,7 +1130,7 @@ const uint8_t* CPDF_DIBSource::GetScanline(int line) const { } set_argb = FXARGB_TODIB(set_argb); reset_argb = FXARGB_TODIB(reset_argb); - FX_DWORD* dest_scan = (FX_DWORD*)m_pMaskedLine; + FX_DWORD* dest_scan = reinterpret_cast(m_pMaskedLine); for (int col = 0; col < m_Width; col++) { if (pSrcLine[col / 8] & (1 << (7 - col % 8))) { *dest_scan = set_argb; @@ -1136,11 +1149,11 @@ const uint8_t* CPDF_DIBSource::GetScanline(int line) const { if (m_bpc == 8) { FXSYS_memcpy(m_pLineBuf, pSrcLine, src_pitch_value); } else { - int src_bit_pos = 0; + uint64_t src_bit_pos = 0; for (int col = 0; col < m_Width; col++) { - int color_index = 0; + unsigned int color_index = 0; for (FX_DWORD color = 0; color < m_nComponents; color++) { - int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); + unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); color_index |= data << (color * m_bpc); src_bit_pos += m_bpc; } @@ -1297,6 +1310,7 @@ void CPDF_DIBSource::DownSampleScanline1Bit(int orig_Bpp, } set_argb = FXARGB_TODIB(set_argb); reset_argb = FXARGB_TODIB(reset_argb); + FX_DWORD* dest_scan_dword = reinterpret_cast(dest_scan); for (int i = 0; i < clip_width; i++) { FX_DWORD src_x = (clip_left + i) * src_width / dest_width; if (bFlipX) { @@ -1304,9 +1318,9 @@ void CPDF_DIBSource::DownSampleScanline1Bit(int orig_Bpp, } src_x %= src_width; if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) { - ((FX_DWORD*)dest_scan)[i] = set_argb; + dest_scan_dword[i] = set_argb; } else { - ((FX_DWORD*)dest_scan)[i] = reset_argb; + dest_scan_dword[i] = reset_argb; } } return; @@ -1326,23 +1340,23 @@ void CPDF_DIBSource::DownSampleScanline1Bit(int orig_Bpp, int dest_pos = i * dest_Bpp; if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) { if (dest_Bpp == 1) { - dest_scan[dest_pos] = (uint8_t)set_argb; + dest_scan[dest_pos] = static_cast(set_argb); } else if (dest_Bpp == 3) { dest_scan[dest_pos] = FXARGB_B(set_argb); dest_scan[dest_pos + 1] = FXARGB_G(set_argb); dest_scan[dest_pos + 2] = FXARGB_R(set_argb); } else { - *(FX_DWORD*)(dest_scan + dest_pos) = set_argb; + *reinterpret_cast(dest_scan + dest_pos) = set_argb; } } else { if (dest_Bpp == 1) { - dest_scan[dest_pos] = (uint8_t)reset_argb; + dest_scan[dest_pos] = static_cast(reset_argb); } else if (dest_Bpp == 3) { dest_scan[dest_pos] = FXARGB_B(reset_argb); dest_scan[dest_pos + 1] = FXARGB_G(reset_argb); dest_scan[dest_pos + 2] = FXARGB_R(reset_argb); } else { - *(FX_DWORD*)(dest_scan + dest_pos) = reset_argb; + *reinterpret_cast(dest_scan + dest_pos) = reset_argb; } } } @@ -1358,11 +1372,11 @@ void CPDF_DIBSource::DownSampleScanline8Bit(int orig_Bpp, int clip_left, int clip_width) const { if (m_bpc < 8) { - int src_bit_pos = 0; + uint64_t src_bit_pos = 0; for (FX_DWORD col = 0; col < src_width; col++) { - int color_index = 0; + unsigned int color_index = 0; for (FX_DWORD color = 0; color < m_nComponents; color++) { - int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); + unsigned int data = GetBits8(pSrcLine, src_bit_pos, m_bpc); color_index |= data << (color * m_bpc); src_bit_pos += m_bpc; } @@ -1471,11 +1485,11 @@ void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, for (FX_DWORD j = 0; j < m_nComponents; ++j) { FX_FLOAT component_value = static_cast(extracted_components[j]); - int color_value = - (int)((m_pCompData[j].m_DecodeMin + - m_pCompData[j].m_DecodeStep * component_value) * - 255.0f + - 0.5f); + int color_value = static_cast( + (m_pCompData[j].m_DecodeMin + + m_pCompData[j].m_DecodeStep * component_value) * + 255.0f + + 0.5f); extracted_components[j] = color_value > 255 ? 255 : (color_value < 0 ? 0 : color_value); } @@ -1505,7 +1519,7 @@ void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, last_argb = argb; } if (dest_Bpp == 4) { - *(FX_DWORD*)pDestPixel = FXARGB_TODIB(argb); + *reinterpret_cast(pDestPixel) = FXARGB_TODIB(argb); } else { *pDestPixel++ = FXARGB_B(argb); *pDestPixel++ = FXARGB_G(argb); @@ -1519,11 +1533,11 @@ FX_BOOL CPDF_DIBSource::TransMask() const { m_Family == PDFCS_DEVICECMYK; } -void CPDF_DIBSource::SetDownSampleSize(int dest_width, int dest_height) const { +void CPDF_DIBSource::SetDownSampleSize(int dest_width, int dest_height) { if (m_pDecoder) { m_pDecoder->DownScale(dest_width, dest_height); - ((CPDF_DIBSource*)this)->m_Width = m_pDecoder->GetWidth(); - ((CPDF_DIBSource*)this)->m_Height = m_pDecoder->GetHeight(); + this->m_Width = m_pDecoder->GetWidth(); + this->m_Height = m_pDecoder->GetHeight(); } } @@ -1534,11 +1548,13 @@ void CPDF_DIBSource::ClearImageData() { } CPDF_ImageLoaderHandle::CPDF_ImageLoaderHandle() { - m_pImageLoader = NULL; - m_pCache = NULL; - m_pImage = NULL; + m_pImageLoader = nullptr; + m_pCache = nullptr; + m_pImage = nullptr; } + CPDF_ImageLoaderHandle::~CPDF_ImageLoaderHandle() {} + FX_BOOL CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader, const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, @@ -1550,7 +1566,7 @@ FX_BOOL CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader, int32_t nDownsampleHeight) { m_pImageLoader = pImageLoader; m_pCache = pCache; - m_pImage = (CPDF_ImageObject*)pImage; + m_pImage = const_cast(pImage); m_nDownsampleWidth = nDownsampleWidth; m_nDownsampleHeight = nDownsampleHeight; FX_BOOL ret; @@ -1579,6 +1595,7 @@ FX_BOOL CPDF_ImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader, } return ret; } + FX_BOOL CPDF_ImageLoaderHandle::Continue(IFX_Pause* pPause) { FX_BOOL ret; if (m_pCache) { @@ -1602,6 +1619,7 @@ FX_BOOL CPDF_ImageLoaderHandle::Continue(IFX_Pause* pPause) { } return ret; } + FX_BOOL CPDF_ImageLoader::Start(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, CPDF_ImageLoaderHandle*& LoadHandle, @@ -1618,10 +1636,12 @@ FX_BOOL CPDF_ImageLoader::Start(const CPDF_ImageObject* pImage, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight); } + FX_BOOL CPDF_ImageLoader::Continue(CPDF_ImageLoaderHandle* LoadHandle, IFX_Pause* pPause) { return LoadHandle->Continue(pPause); } + CPDF_ImageLoader::~CPDF_ImageLoader() { if (!m_bCached) { delete m_pBitmap; diff --git a/core/src/fpdfapi/fpdf_render/render_int.h b/core/src/fpdfapi/fpdf_render/render_int.h index d5018adfa7..165e6800fb 100644 --- a/core/src/fpdfapi/fpdf_render/render_int.h +++ b/core/src/fpdfapi/fpdf_render/render_int.h @@ -493,11 +493,12 @@ class CPDF_DIBSource : public CFX_DIBSource { FX_BOOL bFlipX, int clip_left, int clip_width) const override; - void SetDownSampleSize(int dest_width, int dest_height) const override; + void SetDownSampleSize(int dest_width, int dest_height) override; CFX_DIBitmap* GetBitmap() const; void ReleaseBitmap(CFX_DIBitmap*) const; void ClearImageData(); + FX_DWORD GetMatteColor() const { return m_MatteColor; } int StartLoadDIBSource(CPDF_Document* pDoc, const CPDF_Stream* pStream, @@ -513,14 +514,6 @@ class CPDF_DIBSource : public CFX_DIBSource { int ContinueLoadMaskDIB(IFX_Pause* pPause); int ContinueToLoadMask(); CPDF_DIBSource* DetachMask(); - CPDF_DIBSource* m_pMask; - FX_DWORD m_MatteColor; - void* m_pJbig2Context; - CPDF_StreamAcc* m_pGlobalStream; - FX_BOOL m_bStdCS; - int m_Status; - CPDF_Stream* m_pMaskStream; - FX_BOOL m_bHasMask; private: bool LoadColorInfo(const CPDF_Dictionary* pFormResources, @@ -566,7 +559,7 @@ class CPDF_DIBSource : public CFX_DIBSource { CPDF_Document* m_pDocument; const CPDF_Stream* m_pStream; - CPDF_StreamAcc* m_pStreamAcc; + std::unique_ptr m_pStreamAcc; const CPDF_Dictionary* m_pDict; CPDF_ColorSpace* m_pColorSpace; FX_DWORD m_Family; @@ -574,16 +567,24 @@ class CPDF_DIBSource : public CFX_DIBSource { FX_DWORD m_bpc_orig; FX_DWORD m_nComponents; FX_DWORD m_GroupFamily; + FX_DWORD m_MatteColor; FX_BOOL m_bLoadMask; FX_BOOL m_bDefaultDecode; FX_BOOL m_bImageMask; FX_BOOL m_bDoBpcCheck; FX_BOOL m_bColorKey; + FX_BOOL m_bHasMask; + FX_BOOL m_bStdCS; DIB_COMP_DATA* m_pCompData; uint8_t* m_pLineBuf; uint8_t* m_pMaskedLine; std::unique_ptr m_pCachedBitmap; - ICodec_ScanlineDecoder* m_pDecoder; + std::unique_ptr m_pDecoder; + void* m_pJbig2Context; + CPDF_DIBSource* m_pMask; + std::unique_ptr m_pGlobalStream; + CPDF_Stream* m_pMaskStream; + int m_Status; }; #define FPDF_HUGE_IMAGE_SIZE 60000000 -- cgit v1.2.3