C++ (Cpp) CPDF_DIBSource::GetPitch Examples

Example #1

File: fpdf_render_cache.cpp Project: HelloZhu/PDFium.js

FX_BOOL CPDF_ImageCache::GetCachedBitmap(CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor, CPDF_Dictionary* pPageResources,
        FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus,
        FX_INT32 downsampleWidth, FX_INT32 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->m_pPageCache;
    m_dwTimeCount = pPageRenderCache->GetTimeCount();
    CPDF_DIBSource* pSrc = FX_NEW CPDF_DIBSource;
    CPDF_DIBSource* pMaskSrc = NULL;
    if (!pSrc->Load(m_pDocument, m_pStream, &pMaskSrc, &MatteColor, pRenderStatus->m_pFormResource, pPageResources, bStdCS, GroupFamily, bLoadMask)) {
        delete pSrc;
        pBitmap = NULL;
        return FALSE;
    }
    m_MatteColor = MatteColor;
#if !defined(_FPDFAPI_MINI_)
    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;
    }
#else
    if (pSrc->GetFormat() == FXDIB_8bppRgb && pSrc->GetPalette() &&
            pSrc->GetHeight() * pSrc->GetWidth() * 3 < 1024) {
#if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
        m_pCachedBitmap = pSrc->CloneConvert(FXDIB_Rgb32);
#else
        m_pCachedBitmap = pSrc->CloneConvert(FXDIB_Rgb);
#endif
        delete pSrc;
    } else if (pSrc->GetPitch() * pSrc->GetHeight() < 102400) {
        m_pCachedBitmap = pSrc->Clone();
        delete pSrc;
    } else {
        m_pCachedBitmap = pSrc;
    }
    m_pCachedMask = pMaskSrc;
#endif
    pBitmap = m_pCachedBitmap;
    pMask = m_pCachedMask;
    CalcSize();
    return FALSE;
}

Example #2

File: fpdf_render_cache.cpp Project: documentcloud/pdfium

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;
}