diff options
Diffstat (limited to 'core/fpdfapi/render')
| -rw-r--r-- | core/fpdfapi/render/cpdf_renderstatus.cpp | 92 | ||||
| -rw-r--r-- | core/fpdfapi/render/cpdf_renderstatus.h | 6 |
2 files changed, 51 insertions, 47 deletions
diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp index 935fb64ca6..24ac1357b2 100644 --- a/core/fpdfapi/render/cpdf_renderstatus.cpp +++ b/core/fpdfapi/render/cpdf_renderstatus.cpp @@ -1642,13 +1642,13 @@ bool CPDF_RenderStatus::ProcessTransparency(CPDF_PageObject* pPageObj, RetainPtr<CFX_DIBitmap> CPDF_RenderStatus::GetBackdrop( const CPDF_PageObject* pObj, const FX_RECT& rect, - int& left, - int& top, - bool bBackAlphaRequired) { + bool bBackAlphaRequired, + int* left, + int* top) { FX_RECT bbox = rect; bbox.Intersect(m_pDevice->GetClipBox()); - left = bbox.left; - top = bbox.top; + *left = bbox.left; + *top = bbox.top; CFX_Matrix deviceCTM = m_pDevice->GetCTM(); float scaleX = fabs(deviceCTM.a); float scaleY = fabs(deviceCTM.d); @@ -1670,11 +1670,11 @@ RetainPtr<CFX_DIBitmap> CPDF_RenderStatus::GetBackdrop( bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_GET_BITS); if (!bNeedDraw) { - m_pDevice->GetDIBits(pBackdrop, left, top); + m_pDevice->GetDIBits(pBackdrop, *left, *top); return pBackdrop; } CFX_Matrix FinalMatrix = m_DeviceMatrix; - FinalMatrix.Translate(-left, -top); + FinalMatrix.Translate(-*left, -*top); FinalMatrix.Scale(scaleX, scaleY); pBackdrop->Clear(pBackdrop->HasAlpha() ? 0 : 0xffffffff); @@ -2447,8 +2447,8 @@ void CPDF_RenderStatus::CompositeDIBitmap( } else { uint32_t fill_argb = m_Options.TranslateColor(mask_argb); if (bitmap_alpha < 255) { - ((uint8_t*)&fill_argb)[3] = - ((uint8_t*)&fill_argb)[3] * bitmap_alpha / 255; + uint8_t* fill_argb8 = reinterpret_cast<uint8_t*>(&fill_argb); + fill_argb8[3] *= bitmap_alpha / 255; } if (m_pDevice->SetBitMask(pDIBitmap, left, top, fill_argb)) { return; @@ -2464,59 +2464,63 @@ void CPDF_RenderStatus::CompositeDIBitmap( (m_pDevice->GetRenderCaps() & FXRC_GET_BITS) && !bBackAlphaRequired); if (bGetBackGround) { if (bIsolated || !bGroup) { - if (pDIBitmap->IsAlphaMask()) { + if (!pDIBitmap->IsAlphaMask()) + m_pDevice->SetDIBitsWithBlend(pDIBitmap, left, top, blend_mode); + return; + } + + FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), + top + pDIBitmap->GetHeight()); + rect.Intersect(m_pDevice->GetClipBox()); + RetainPtr<CFX_DIBitmap> pClone; + if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) { + pClone = m_pDevice->GetBackDrop()->Clone(&rect); + if (!pClone) return; - } - m_pDevice->SetDIBitsWithBlend(pDIBitmap, left, top, blend_mode); - } else { - FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), - top + pDIBitmap->GetHeight()); - rect.Intersect(m_pDevice->GetClipBox()); - RetainPtr<CFX_DIBitmap> pClone; - if (m_pDevice->GetBackDrop() && m_pDevice->GetBitmap()) { - pClone = m_pDevice->GetBackDrop()->Clone(&rect); - RetainPtr<CFX_DIBitmap> pForeBitmap = m_pDevice->GetBitmap(); - pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pForeBitmap, rect.left, rect.top); - left = left >= 0 ? 0 : left; - top = top >= 0 ? 0 : top; - if (!pDIBitmap->IsAlphaMask()) - pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pDIBitmap, left, top, blend_mode); - else - pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(), - pDIBitmap, mask_argb, left, top, blend_mode); + + RetainPtr<CFX_DIBitmap> pForeBitmap = m_pDevice->GetBitmap(); + pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), + pForeBitmap, rect.left, rect.top); + left = std::min(left, 0); + top = std::min(top, 0); + if (pDIBitmap->IsAlphaMask()) { + pClone->CompositeMask(0, 0, pClone->GetWidth(), pClone->GetHeight(), + pDIBitmap, mask_argb, left, top, blend_mode); } else { - pClone = pDIBitmap; + pClone->CompositeBitmap(0, 0, pClone->GetWidth(), pClone->GetHeight(), + pDIBitmap, left, top, blend_mode); } - if (m_pDevice->GetBackDrop()) { - m_pDevice->SetDIBits(pClone, rect.left, rect.top); - } else { - if (pDIBitmap->IsAlphaMask()) - return; + } else { + pClone = pDIBitmap; + } + if (m_pDevice->GetBackDrop()) { + m_pDevice->SetDIBits(pClone, rect.left, rect.top); + } else { + if (!pDIBitmap->IsAlphaMask()) { m_pDevice->SetDIBitsWithBlend(pDIBitmap, rect.left, rect.top, blend_mode); } } return; } - int back_left, back_top; + int back_left; + int back_top; FX_RECT rect(left, top, left + pDIBitmap->GetWidth(), top + pDIBitmap->GetHeight()); RetainPtr<CFX_DIBitmap> pBackdrop = - GetBackdrop(m_pCurObj, rect, back_left, back_top, - blend_mode > FXDIB_BLEND_NORMAL && bIsolated); + GetBackdrop(m_pCurObj, rect, blend_mode > FXDIB_BLEND_NORMAL && bIsolated, + &back_left, &back_top); if (!pBackdrop) return; - if (!pDIBitmap->IsAlphaMask()) { - pBackdrop->CompositeBitmap(left - back_left, top - back_top, - pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), - pDIBitmap, 0, 0, blend_mode); - } else { + if (pDIBitmap->IsAlphaMask()) { pBackdrop->CompositeMask(left - back_left, top - back_top, pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), pDIBitmap, mask_argb, 0, 0, blend_mode); + } else { + pBackdrop->CompositeBitmap(left - back_left, top - back_top, + pDIBitmap->GetWidth(), pDIBitmap->GetHeight(), + pDIBitmap, 0, 0, blend_mode); } auto pBackdrop1 = pdfium::MakeRetain<CFX_DIBitmap>(); diff --git a/core/fpdfapi/render/cpdf_renderstatus.h b/core/fpdfapi/render/cpdf_renderstatus.h index 102bc2f2e6..e0045afd85 100644 --- a/core/fpdfapi/render/cpdf_renderstatus.h +++ b/core/fpdfapi/render/cpdf_renderstatus.h @@ -142,9 +142,9 @@ class CPDF_RenderStatus { const CFX_Matrix* pObj2Device); RetainPtr<CFX_DIBitmap> GetBackdrop(const CPDF_PageObject* pObj, const FX_RECT& rect, - int& left, - int& top, - bool bBackAlphaRequired); + bool bBackAlphaRequired, + int* left, + int* top); RetainPtr<CFX_DIBitmap> LoadSMask(CPDF_Dictionary* pSMaskDict, FX_RECT* pClipRect, const CFX_Matrix* pMatrix); |