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) { CPDF_Object* pFilter = m_pDict->GetDirectObjectFor("Filter"); if (pFilter) { CFX_ByteString filter; if (pFilter->IsName()) { filter = pFilter->GetString(); } else if (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; CPDF_Array* pDecode = m_pDict->GetArrayFor("Decode"); m_bDefaultDecode = !pDecode || !pDecode->GetIntegerAt(0); return true; } 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()) { CFX_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(); m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey); return !!m_pCompData; }
FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { if (pArray->GetCount() < 4) { return FALSE; } CPDF_Object* pBaseObj = pArray->GetElementValue(1); if (pBaseObj == m_pArray) { return FALSE; } CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, NULL); if (m_pBaseCS == NULL) { return FALSE; } m_nBaseComponents = m_pBaseCS->CountComponents(); m_pCompMinMax = FX_Alloc(FX_FLOAT, m_nBaseComponents * 2); FX_FLOAT defvalue; for (int i = 0; i < m_nBaseComponents; i ++) { m_pBaseCS->GetDefaultValue(i, defvalue, m_pCompMinMax[i * 2], m_pCompMinMax[i * 2 + 1]); m_pCompMinMax[i * 2 + 1] -= m_pCompMinMax[i * 2]; } m_MaxIndex = pArray->GetInteger(2); CPDF_Object* pTableObj = pArray->GetElementValue(3); if (pTableObj == NULL) { return FALSE; } if (pTableObj->GetType() == PDFOBJ_STRING) { m_Table = ((CPDF_String*)pTableObj)->GetString(); } else if (pTableObj->GetType() == PDFOBJ_STREAM) { CPDF_StreamAcc acc; acc.LoadAllData((CPDF_Stream*)pTableObj, FALSE); m_Table = CFX_ByteStringC(acc.GetData(), acc.GetSize()); } return TRUE; }
FX_BOOL CPDF_ShadingPattern::Load() { if (m_ShadingType != 0) { return TRUE; } CPDF_Dictionary* pShadingDict = m_pShadingObj ? m_pShadingObj->GetDict() : NULL; if (pShadingDict == NULL) { return FALSE; } if (m_nFuncs) { for (int i = 0; i < m_nFuncs; i ++) if (m_pFunctions[i]) { delete m_pFunctions[i]; } m_nFuncs = 0; } CPDF_Object* pFunc = pShadingDict->GetElementValue(FX_BSTRC("Function")); if (pFunc) { if (pFunc->GetType() == PDFOBJ_ARRAY) { m_nFuncs = ((CPDF_Array*)pFunc)->GetCount(); if (m_nFuncs > 4) { m_nFuncs = 4; } for (int i = 0; i < m_nFuncs; i ++) { m_pFunctions[i] = CPDF_Function::Load(((CPDF_Array*)pFunc)->GetElementValue(i)); } } else { m_pFunctions[0] = CPDF_Function::Load(pFunc); m_nFuncs = 1; } } CPDF_Object* pCSObj = pShadingDict->GetElementValue(FX_BSTRC("ColorSpace")); if (pCSObj == NULL) { return FALSE; } CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); m_pCS = pDocPageData->GetColorSpace(pCSObj, NULL); if (m_pCS) { m_pCountedCS = pDocPageData->FindColorSpacePtr(m_pCS->GetArray()); } m_ShadingType = pShadingDict->GetInteger(FX_BSTRC("ShadingType")); return TRUE; }
FX_BOOL CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { CPDF_Object* pBaseCS = pArray->GetElementValue(1); if (pBaseCS == m_pArray) { return FALSE; } CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, NULL); if (m_pBaseCS) { if (m_pBaseCS->GetFamily() == PDFCS_PATTERN) { return FALSE; } m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray()); m_nComponents = m_pBaseCS->CountComponents() + 1; if (m_pBaseCS->CountComponents() > MAX_PATTERN_COLORCOMPS) { return FALSE; } } else { m_nComponents = 1; } return TRUE; }
bool CPDF_ShadingPattern::Load() { if (m_ShadingType != kInvalidShading) return true; CPDF_Dictionary* pShadingDict = m_pShadingObj ? m_pShadingObj->GetDict() : nullptr; if (!pShadingDict) return false; m_pFunctions.clear(); CPDF_Object* pFunc = pShadingDict->GetDirectObjectFor("Function"); if (pFunc) { if (CPDF_Array* pArray = pFunc->AsArray()) { m_pFunctions.resize(std::min<size_t>(pArray->GetCount(), 4)); for (size_t i = 0; i < m_pFunctions.size(); ++i) m_pFunctions[i] = CPDF_Function::Load(pArray->GetDirectObjectAt(i)); } else { m_pFunctions.push_back(CPDF_Function::Load(pFunc)); } } CPDF_Object* pCSObj = pShadingDict->GetDirectObjectFor("ColorSpace"); if (!pCSObj) return false; CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); m_pCS = pDocPageData->GetColorSpace(pCSObj, nullptr); if (m_pCS) m_pCountedCS = pDocPageData->FindColorSpacePtr(m_pCS->GetArray()); m_ShadingType = ToShadingType(pShadingDict->GetIntegerFor("ShadingType")); // We expect to have a stream if our shading type is a mesh. if (IsMeshShading() && !ToStream(m_pShadingObj)) return false; return true; }
FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { if (pArray->GetCount() < 4) { return FALSE; } CPDF_Object* pBaseObj = pArray->GetElementValue(1); if (pBaseObj == m_pArray) { return FALSE; } CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); m_pBaseCS = pDocPageData->GetColorSpace(pBaseObj, NULL); if (!m_pBaseCS) { return FALSE; } m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray()); m_nBaseComponents = m_pBaseCS->CountComponents(); m_pCompMinMax = FX_Alloc2D(FX_FLOAT, m_nBaseComponents, 2); FX_FLOAT defvalue; for (int i = 0; i < m_nBaseComponents; i++) { m_pBaseCS->GetDefaultValue(i, defvalue, m_pCompMinMax[i * 2], m_pCompMinMax[i * 2 + 1]); m_pCompMinMax[i * 2 + 1] -= m_pCompMinMax[i * 2]; } m_MaxIndex = pArray->GetInteger(2); CPDF_Object* pTableObj = pArray->GetElementValue(3); if (!pTableObj) return FALSE; if (CPDF_String* pString = pTableObj->AsString()) { m_Table = pString->GetString(); } else if (CPDF_Stream* pStream = pTableObj->AsStream()) { CPDF_StreamAcc acc; acc.LoadAllData(pStream, FALSE); m_Table = CFX_ByteStringC(acc.GetData(), acc.GetSize()); } return TRUE; }