CFX_ByteStringC CPDF_Array::GetConstString(FX_DWORD i) const
{
if (this && i < (FX_DWORD)m_Objects.GetSize()) {
CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i);
return p->GetConstString();
}
return CFX_ByteStringC();
}
CFX_ByteStringC CPDF_Dictionary::GetConstString(
const CFX_ByteStringC& key) const {
CPDF_Object* p = GetElement(key);
if (p) {
return p->GetConstString();
}
return CFX_ByteStringC();
}
CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key, FX_BSTR def) const
{
CPDF_Object* p = NULL;
m_Map.Lookup(key, (void*&)p);
if (p)
return p->GetConstString();
else
return CFX_ByteStringC(def);
}
CFX_ByteStringC CPDF_Dictionary::GetConstString(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const
{
CPDF_Object* p = NULL;
m_Map.Lookup(key, (void*&)p);
if (p) {
return p->GetConstString();
}
return CFX_ByteStringC(def);
}
CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key) const
{
if (this) {
CPDF_Object* p = NULL;
m_Map.Lookup(key, (void*&)p);
if (p) {
return p->GetConstString();
}
}
return CFX_ByteStringC();
}
CFX_ByteStringC CPDF_Object::GetConstString() const
{
switch (m_Type) {
case PDFOBJ_STRING:
return CFX_ByteStringC((FX_LPCBYTE)((CPDF_String*)this)->m_String, ((CPDF_String*)this)->m_String.GetLength());
case PDFOBJ_NAME:
return CFX_ByteStringC((FX_LPCBYTE)((CPDF_Name*)this)->m_Name, ((CPDF_Name*)this)->m_Name.GetLength());
case PDFOBJ_REFERENCE: {
CPDF_Reference* pRef = (CPDF_Reference*)(FX_LPVOID)this;
if (pRef->m_pObjList == NULL) {
break;
}
CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum);
if (pObj == NULL) {
return CFX_ByteStringC();
}
return pObj->GetConstString();
}
}
return CFX_ByteStringC();
}
CFX_ByteStringC CPDF_Object::GetConstString() const {
switch (m_Type) {
case PDFOBJ_STRING: {
CFX_ByteString str = AsString()->m_String;
return CFX_ByteStringC((const uint8_t*)str, str.GetLength());
}
case PDFOBJ_NAME: {
CFX_ByteString name = AsName()->m_Name;
return CFX_ByteStringC((const uint8_t*)name, name.GetLength());
}
case PDFOBJ_REFERENCE: {
const CPDF_Reference* pRef = AsReference();
if (!pRef->m_pObjList)
break;
CPDF_Object* pObj =
pRef->m_pObjList->GetIndirectObject(pRef->GetRefObjNum(), nullptr);
return pObj ? pObj->GetConstString() : CFX_ByteStringC();
}
}
return CFX_ByteStringC();
}
FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
if (m_Loader.m_pBitmap == NULL) {
return FALSE;
}
m_BitmapAlpha = 255;
const CPDF_GeneralStateData* pGeneralState = m_pImageObject->m_GeneralState;
if (pGeneralState) {
m_BitmapAlpha = FXSYS_round(pGeneralState->m_FillAlpha * 255);
}
m_pDIBSource = m_Loader.m_pBitmap;
if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_ALPHA &&
m_Loader.m_pMask == NULL) {
return StartBitmapAlpha();
}
if (pGeneralState && pGeneralState->m_pTR) {
if (!pGeneralState->m_pTransferFunc) {
((CPDF_GeneralStateData*)pGeneralState)->m_pTransferFunc =
m_pRenderStatus->GetTransferFunc(pGeneralState->m_pTR);
}
if (pGeneralState->m_pTransferFunc &&
!pGeneralState->m_pTransferFunc->m_bIdentity) {
m_pDIBSource = m_Loader.m_pBitmap =
pGeneralState->m_pTransferFunc->TranslateImage(m_Loader.m_pBitmap,
!m_Loader.m_bCached);
if (m_Loader.m_bCached && m_Loader.m_pMask) {
m_Loader.m_pMask = m_Loader.m_pMask->Clone();
}
m_Loader.m_bCached = FALSE;
}
}
m_FillArgb = 0;
m_bPatternColor = FALSE;
m_pPattern = NULL;
if (m_pDIBSource->IsAlphaMask()) {
CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
if (pColor && pColor->IsPattern()) {
m_pPattern = pColor->GetPattern();
if (m_pPattern != NULL) {
m_bPatternColor = TRUE;
}
}
m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
} else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
m_pClone = m_pDIBSource->Clone();
m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
m_pRenderStatus->m_Options.m_ForeColor);
m_pDIBSource = m_pClone;
}
m_Flags = 0;
if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_DOWNSAMPLE) {
m_Flags |= RENDER_FORCE_DOWNSAMPLE;
} else if (m_pRenderStatus->m_Options.m_Flags & RENDER_FORCE_HALFTONE) {
m_Flags |= RENDER_FORCE_HALFTONE;
}
if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
CPDF_Object* pFilters =
m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
FX_BSTRC("Filter"));
if (pFilters) {
if (pFilters->IsName()) {
CFX_ByteStringC bsDecodeType = pFilters->GetConstString();
if (bsDecodeType == FX_BSTRC("DCTDecode") ||
bsDecodeType == FX_BSTRC("JPXDecode")) {
m_Flags |= FXRENDER_IMAGE_LOSSY;
}
} else if (CPDF_Array* pArray = pFilters->AsArray()) {
for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
CFX_ByteStringC bsDecodeType = pArray->GetConstString(i);
if (bsDecodeType == FX_BSTRC("DCTDecode") ||
bsDecodeType == FX_BSTRC("JPXDecode")) {
m_Flags |= FXRENDER_IMAGE_LOSSY;
break;
}
}
}
}
}
if (m_pRenderStatus->m_Options.m_Flags & RENDER_NOIMAGESMOOTH) {
m_Flags |= FXDIB_NOSMOOTH;
} else if (m_pImageObject->m_pImage->IsInterpol()) {
m_Flags |= FXDIB_INTERPOL;
}
if (m_Loader.m_pMask) {
return DrawMaskedImage();
}
if (m_bPatternColor) {
return DrawPatternImage(m_pObj2Device);
}
if (m_BitmapAlpha == 255 && pGeneralState && pGeneralState->m_FillOP &&
pGeneralState->m_OPMode == 0 &&
pGeneralState->m_BlendType == FXDIB_BLEND_NORMAL &&
pGeneralState->m_StrokeAlpha == 1 && pGeneralState->m_FillAlpha == 1) {
CPDF_Document* pDocument = NULL;
CPDF_Page* pPage = NULL;
if (m_pRenderStatus->m_pContext->m_pPageCache) {
pPage = m_pRenderStatus->m_pContext->m_pPageCache->GetPage();
pDocument = pPage->m_pDocument;
} else {
pDocument = m_pImageObject->m_pImage->GetDocument();
}
CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
CPDF_Object* pCSObj =
m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
FX_BSTRC("ColorSpace"));
CPDF_ColorSpace* pColorSpace =
pDocument->LoadColorSpace(pCSObj, pPageResources);
if (pColorSpace) {
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();
}
