bool CPDF_ImageCacheEntry::GetCachedBitmap(CFX_DIBSource*& pBitmap,
CFX_DIBSource*& pMask,
uint32_t& MatteColor,
CPDF_Dictionary* pPageResources,
bool bStdCS,
uint32_t GroupFamily,
bool bLoadMask,
CPDF_RenderStatus* pRenderStatus,
int32_t downsampleWidth,
int32_t downsampleHeight) {
if (m_pCachedBitmap) {
pBitmap = m_pCachedBitmap;
pMask = m_pCachedMask;
MatteColor = m_MatteColor;
return true;
}
if (!pRenderStatus) {
return false;
}
CPDF_RenderContext* pContext = pRenderStatus->GetContext();
CPDF_PageRenderCache* pPageRenderCache = pContext->GetPageCache();
m_dwTimeCount = pPageRenderCache->GetTimeCount();
CPDF_DIBSource* pSrc = new CPDF_DIBSource;
CPDF_DIBSource* pMaskSrc = nullptr;
if (!pSrc->Load(m_pDocument, m_pStream, &pMaskSrc, &MatteColor,
pRenderStatus->m_pFormResource, pPageResources, bStdCS,
GroupFamily, bLoadMask)) {
delete pSrc;
pBitmap = nullptr;
return false;
}
m_MatteColor = MatteColor;
if (pSrc->GetPitch() * pSrc->GetHeight() < FPDF_HUGE_IMAGE_SIZE) {
m_pCachedBitmap = pSrc->Clone();
delete pSrc;
} else {
m_pCachedBitmap = pSrc;
}
if (pMaskSrc) {
m_pCachedMask = pMaskSrc->Clone();
delete pMaskSrc;
}
pBitmap = m_pCachedBitmap;
pMask = m_pCachedMask;
CalcSize();
return false;
}
void CPDF_ImageCacheEntry::ContinueGetCachedBitmap() {
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();
m_dwTimeCount = pPageRenderCache->GetTimeCount();
if (m_pCurBitmap->GetPitch() * m_pCurBitmap->GetHeight() <
FPDF_HUGE_IMAGE_SIZE) {
m_pCachedBitmap = m_pCurBitmap->Clone();
delete m_pCurBitmap;
m_pCurBitmap = nullptr;
} else {
m_pCachedBitmap = m_pCurBitmap;
}
if (m_pCurMask) {
m_pCachedMask = m_pCurMask->Clone();
delete m_pCurMask;
m_pCurMask = nullptr;
}
m_pCurBitmap = m_pCachedBitmap;
m_pCurMask = m_pCachedMask;
CalcSize();
}
