diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_render')
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp | 60 | ||||
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/render_int.h | 1 |
2 files changed, 38 insertions, 23 deletions
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp index 50041399e5..d2910dc1ab 100644 --- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp @@ -496,55 +496,63 @@ FX_BOOL CPDF_DIBSource::LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dict } } ValidateDictParam(); - m_pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents); - if (m_bpc == 0) { - return TRUE; + m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey); + if (m_pCompData == NULL) { + return FALSE; + } + return TRUE; +} +DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, FX_BOOL& bColorKey) +{ + DIB_COMP_DATA* pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents); + if (pCompData == NULL) { + return NULL; } int max_data = (1 << m_bpc) - 1; CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode")); if (pDecode) { for (FX_DWORD i = 0; i < m_nComponents; i ++) { - m_pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2); + pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2); FX_FLOAT max = pDecode->GetNumber(i * 2 + 1); - m_pCompData[i].m_DecodeStep = (max - m_pCompData[i].m_DecodeMin) / max_data; + pCompData[i].m_DecodeStep = (max - pCompData[i].m_DecodeMin) / max_data; FX_FLOAT def_value, def_min, def_max; m_pColorSpace->GetDefaultValue(i, def_value, def_min, def_max); if (m_Family == PDFCS_INDEXED) { def_max = (FX_FLOAT)max_data; } - if (def_min != m_pCompData[i].m_DecodeMin || def_max != max) { - m_bDefaultDecode = FALSE; + if (def_min != pCompData[i].m_DecodeMin || def_max != max) { + bDefaultDecode = FALSE; } } } else { for (FX_DWORD i = 0; i < m_nComponents; i ++) { FX_FLOAT def_value; - m_pColorSpace->GetDefaultValue(i, def_value, m_pCompData[i].m_DecodeMin, m_pCompData[i].m_DecodeStep); + m_pColorSpace->GetDefaultValue(i, def_value, pCompData[i].m_DecodeMin, pCompData[i].m_DecodeStep); if (m_Family == PDFCS_INDEXED) { - m_pCompData[i].m_DecodeStep = (FX_FLOAT)max_data; + pCompData[i].m_DecodeStep = (FX_FLOAT)max_data; } - m_pCompData[i].m_DecodeStep = (m_pCompData[i].m_DecodeStep - m_pCompData[i].m_DecodeMin) / max_data; + pCompData[i].m_DecodeStep = (pCompData[i].m_DecodeStep - pCompData[i].m_DecodeMin) / max_data; } } if (!m_pDict->KeyExist(FX_BSTRC("SMask"))) { CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask")); if (pMask == NULL) { - return TRUE; + return pCompData; } if (pMask->GetType() == PDFOBJ_ARRAY) { CPDF_Array* pArray = (CPDF_Array*)pMask; - if (pArray->GetCount() >= m_nComponents * 2) - for (FX_DWORD i = 0; i < m_nComponents * 2; i ++) { - if (i % 2) { - m_pCompData[i / 2].m_ColorKeyMax = pArray->GetInteger(i); - } else { - m_pCompData[i / 2].m_ColorKeyMin = pArray->GetInteger(i); - } + if (pArray->GetCount() >= m_nComponents * 2) { + for (FX_DWORD i = 0; i < m_nComponents; i++) { + int min_num = pArray->GetInteger(i * 2); + int max_num = pArray->GetInteger(i * 2 + 1); + pCompData[i].m_ColorKeyMin = FX_MAX(min_num, 0); + pCompData[i].m_ColorKeyMax = FX_MIN(max_num, max_data); } - m_bColorKey = TRUE; + } + bColorKey = TRUE; } } - return TRUE; + return pCompData; } ICodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height, const CPDF_Dictionary* pParams); @@ -572,7 +580,14 @@ int CPDF_DIBSource::CreateDecoder() int comps, bpc; ICodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule(); if (pJpegModule->LoadInfo(src_data, src_size, m_Width, m_Height, comps, bpc, bTransform)) { - m_nComponents = comps; + if (m_nComponents != comps) { + FX_Free(m_pCompData); + m_nComponents = comps; + m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey); + if (m_pCompData == NULL) { + return 0; + } + } m_bpc = bpc; m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, bTransform); @@ -1159,8 +1174,7 @@ FX_LPCBYTE CPDF_DIBSource::GetScanline(int line) const FX_LPBYTE alpha_channel = m_pMaskedLine + 3; for (int col = 0; col < m_Width; col ++) { FX_LPCBYTE pPixel = pSrcLine + col * 3; - alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin || - pPixel[0] > m_pCompData[0].m_ColorKeyMax || + alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin || pPixel[0] > m_pCompData[0].m_ColorKeyMax || pPixel[1] < m_pCompData[1].m_ColorKeyMin || pPixel[1] > m_pCompData[1].m_ColorKeyMax || pPixel[2] < m_pCompData[2].m_ColorKeyMin || pPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0; } diff --git a/core/src/fpdfapi/fpdf_render/render_int.h b/core/src/fpdfapi/fpdf_render/render_int.h index 8fb4aca1c5..f9a04a99a4 100644 --- a/core/src/fpdfapi/fpdf_render/render_int.h +++ b/core/src/fpdfapi/fpdf_render/render_int.h @@ -412,6 +412,7 @@ public: FX_BOOL m_bHasMask; protected: FX_BOOL LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources); + DIB_COMP_DATA* GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, FX_BOOL& bColorKey); CPDF_DIBSource* LoadMask(FX_DWORD& MatteColor); CPDF_DIBSource* LoadMaskDIB(CPDF_Stream* pMask); void LoadJpxBitmap(); |