FX_BOOL CPDF_RenderStatus::ProcessTransparency( const CPDF_PageObject* pPageObj, const CFX_AffineMatrix* pObj2Device) { const CPDF_GeneralStateData* pGeneralState = pPageObj->m_GeneralState; int blend_type = pGeneralState ? pGeneralState->m_BlendType : FXDIB_BLEND_NORMAL; if (blend_type == FXDIB_BLEND_UNSUPPORTED) { return TRUE; } CPDF_Dictionary* pSMaskDict = pGeneralState ? ToDictionary(pGeneralState->m_pSoftMask) : NULL; if (pSMaskDict) { if (pPageObj->m_Type == PDFPAGE_IMAGE && ((CPDF_ImageObject*)pPageObj) ->m_pImage->GetDict() ->KeyExist(FX_BSTRC("SMask"))) { pSMaskDict = NULL; } } CPDF_Dictionary* pFormResource = NULL; FX_FLOAT group_alpha = 1.0f; int Transparency = m_Transparency; FX_BOOL bGroupTransparent = FALSE; if (pPageObj->m_Type == PDFPAGE_FORM) { CPDF_FormObject* pFormObj = (CPDF_FormObject*)pPageObj; const CPDF_GeneralStateData* pStateData = pFormObj->m_GeneralState.GetObject(); if (pStateData) { group_alpha = pStateData->m_FillAlpha; } Transparency = pFormObj->m_pForm->m_Transparency; bGroupTransparent = !!(Transparency & PDFTRANS_ISOLATED); if (pFormObj->m_pForm->m_pFormDict) { pFormResource = pFormObj->m_pForm->m_pFormDict->GetDict("Resources"); } } FX_BOOL bTextClip = FALSE; if (pPageObj->m_ClipPath.NotNull() && pPageObj->m_ClipPath.GetTextCount() && m_pDevice->GetDeviceClass() == FXDC_DISPLAY && !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)) { bTextClip = TRUE; } if ((m_Options.m_Flags & RENDER_OVERPRINT) && pPageObj->m_Type == PDFPAGE_IMAGE && pGeneralState && pGeneralState->m_FillOP && pGeneralState->m_StrokeOP) { CPDF_Document* pDocument = NULL; CPDF_Page* pPage = NULL; if (m_pContext->m_pPageCache) { pPage = m_pContext->m_pPageCache->GetPage(); pDocument = pPage->m_pDocument; } else { pDocument = ((CPDF_ImageObject*)pPageObj)->m_pImage->GetDocument(); } CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL; CPDF_Object* pCSObj = ((CPDF_ImageObject*)pPageObj) ->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) { blend_type = FXDIB_BLEND_DARKEN; } pDocument->GetPageData()->ReleaseColorSpace(pCSObj); } } if (pSMaskDict == NULL && group_alpha == 1.0f && blend_type == FXDIB_BLEND_NORMAL && !bTextClip && !bGroupTransparent) { return FALSE; } FX_BOOL isolated = Transparency & PDFTRANS_ISOLATED; if (m_bPrint) { FX_BOOL bRet = FALSE; int rendCaps = m_pDevice->GetRenderCaps(); if (!((Transparency & PDFTRANS_ISOLATED) || pSMaskDict || bTextClip) && (rendCaps & FXRC_BLEND_MODE)) { int oldBlend = m_curBlend; m_curBlend = blend_type; bRet = DrawObjWithBlend(pPageObj, pObj2Device); m_curBlend = oldBlend; } if (!bRet) { DrawObjWithBackground(pPageObj, pObj2Device); } return TRUE; } FX_RECT rect = pPageObj->GetBBox(pObj2Device); rect.Intersect(m_pDevice->GetClipBox()); if (rect.IsEmpty()) { return TRUE; } CFX_Matrix deviceCTM = m_pDevice->GetCTM(); FX_FLOAT scaleX = FXSYS_fabs(deviceCTM.a); FX_FLOAT scaleY = FXSYS_fabs(deviceCTM.d); int width = FXSYS_round((FX_FLOAT)rect.Width() * scaleX); int height = FXSYS_round((FX_FLOAT)rect.Height() * scaleY); CFX_FxgeDevice bitmap_device; nonstd::unique_ptr<CFX_DIBitmap> oriDevice; if (!isolated && (m_pDevice->GetRenderCaps() & FXRC_GET_BITS)) { oriDevice.reset(new CFX_DIBitmap); if (!m_pDevice->CreateCompatibleBitmap(oriDevice.get(), width, height)) return TRUE; m_pDevice->GetDIBits(oriDevice.get(), rect.left, rect.top); } if (!bitmap_device.Create(width, height, FXDIB_Argb, 0, oriDevice.get())) return TRUE; CFX_DIBitmap* bitmap = bitmap_device.GetBitmap(); bitmap->Clear(0); CFX_AffineMatrix new_matrix = *pObj2Device; new_matrix.TranslateI(-rect.left, -rect.top); new_matrix.Scale(scaleX, scaleY); nonstd::unique_ptr<CFX_DIBitmap> pTextMask; if (bTextClip) { pTextMask.reset(new CFX_DIBitmap); if (!pTextMask->Create(width, height, FXDIB_8bppMask)) return TRUE; pTextMask->Clear(0); CFX_FxgeDevice text_device; text_device.Attach(pTextMask.get()); for (FX_DWORD i = 0; i < pPageObj->m_ClipPath.GetTextCount(); i++) { CPDF_TextObject* textobj = pPageObj->m_ClipPath.GetText(i); if (textobj == NULL) { break; } CFX_AffineMatrix text_matrix; textobj->GetTextMatrix(&text_matrix); CPDF_TextRenderer::DrawTextPath( &text_device, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, textobj->m_TextState.GetFont(), textobj->m_TextState.GetFontSize(), &text_matrix, &new_matrix, textobj->m_GraphState, (FX_ARGB)-1, 0, NULL); } } CPDF_RenderStatus bitmap_render; bitmap_render.Initialize(m_pContext, &bitmap_device, NULL, m_pStopObj, NULL, NULL, &m_Options, 0, m_bDropObjects, pFormResource, TRUE); bitmap_render.ProcessObjectNoClip(pPageObj, &new_matrix); m_bStopped = bitmap_render.m_bStopped; if (pSMaskDict) { CFX_AffineMatrix smask_matrix; FXSYS_memcpy(&smask_matrix, pGeneralState->m_SMaskMatrix, sizeof smask_matrix); smask_matrix.Concat(*pObj2Device); nonstd::unique_ptr<CFX_DIBSource> pSMaskSource( LoadSMask(pSMaskDict, &rect, &smask_matrix)); if (pSMaskSource) bitmap->MultiplyAlpha(pSMaskSource.get()); } if (pTextMask) { bitmap->MultiplyAlpha(pTextMask.get()); pTextMask.reset(); } if (Transparency & PDFTRANS_GROUP && group_alpha != 1.0f) { bitmap->MultiplyAlpha((int32_t)(group_alpha * 255)); } Transparency = m_Transparency; if (pPageObj->m_Type == PDFPAGE_FORM) { Transparency |= PDFTRANS_GROUP; } CompositeDIBitmap(bitmap, rect.left, rect.top, 0, 255, blend_type, Transparency); return TRUE; }
FX_BOOL CPDF_RenderStatus::ProcessTransparency(CPDF_PageObject* pPageObj, const CFX_Matrix* pObj2Device) { #if defined _SKIA_SUPPORT_ DebugVerifyDeviceIsPreMultiplied(); #endif int blend_type = pPageObj->m_GeneralState.GetBlendType(); if (blend_type == FXDIB_BLEND_UNSUPPORTED) return TRUE; CPDF_Dictionary* pSMaskDict = ToDictionary(pPageObj->m_GeneralState.GetSoftMask()); if (pSMaskDict) { if (pPageObj->IsImage() && pPageObj->AsImage()->GetImage()->GetDict()->KeyExist("SMask")) { pSMaskDict = nullptr; } } CPDF_Dictionary* pFormResource = nullptr; FX_FLOAT group_alpha = 1.0f; int Transparency = m_Transparency; FX_BOOL bGroupTransparent = FALSE; if (pPageObj->IsForm()) { const CPDF_FormObject* pFormObj = pPageObj->AsForm(); group_alpha = pFormObj->m_GeneralState.GetFillAlpha(); Transparency = pFormObj->m_pForm->m_Transparency; bGroupTransparent = !!(Transparency & PDFTRANS_ISOLATED); if (pFormObj->m_pForm->m_pFormDict) { pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictBy("Resources"); } } bool bTextClip = (pPageObj->m_ClipPath && pPageObj->m_ClipPath.GetTextCount() && m_pDevice->GetDeviceClass() == FXDC_DISPLAY && !(m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SOFT_CLIP)); if ((m_Options.m_Flags & RENDER_OVERPRINT) && pPageObj->IsImage() && pPageObj->m_GeneralState.GetFillOP() && pPageObj->m_GeneralState.GetStrokeOP()) { CPDF_Document* pDocument = nullptr; CPDF_Page* pPage = nullptr; if (m_pContext->GetPageCache()) { pPage = m_pContext->GetPageCache()->GetPage(); pDocument = pPage->m_pDocument; } else { pDocument = pPageObj->AsImage()->GetImage()->GetDocument(); } CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : nullptr; CPDF_Object* pCSObj = pPageObj->AsImage() ->GetImage() ->GetStream() ->GetDict() ->GetDirectObjectBy("ColorSpace"); CPDF_ColorSpace* pColorSpace = pDocument->LoadColorSpace(pCSObj, pPageResources); if (pColorSpace) { int format = pColorSpace->GetFamily(); if (format == PDFCS_DEVICECMYK || format == PDFCS_SEPARATION || format == PDFCS_DEVICEN) { blend_type = FXDIB_BLEND_DARKEN; } pDocument->GetPageData()->ReleaseColorSpace(pCSObj); } } if (!pSMaskDict && group_alpha == 1.0f && blend_type == FXDIB_BLEND_NORMAL && !bTextClip && !bGroupTransparent) { return FALSE; } bool isolated = !!(Transparency & PDFTRANS_ISOLATED); if (m_bPrint) { FX_BOOL bRet = FALSE; int rendCaps = m_pDevice->GetRenderCaps(); if (!((Transparency & PDFTRANS_ISOLATED) || pSMaskDict || bTextClip) && (rendCaps & FXRC_BLEND_MODE)) { int oldBlend = m_curBlend; m_curBlend = blend_type; bRet = DrawObjWithBlend(pPageObj, pObj2Device); m_curBlend = oldBlend; } if (!bRet) { DrawObjWithBackground(pPageObj, pObj2Device); } return TRUE; } FX_RECT rect = pPageObj->GetBBox(pObj2Device); rect.Intersect(m_pDevice->GetClipBox()); if (rect.IsEmpty()) { return TRUE; } CFX_Matrix deviceCTM = m_pDevice->GetCTM(); FX_FLOAT scaleX = FXSYS_fabs(deviceCTM.a); FX_FLOAT scaleY = FXSYS_fabs(deviceCTM.d); int width = FXSYS_round((FX_FLOAT)rect.Width() * scaleX); int height = FXSYS_round((FX_FLOAT)rect.Height() * scaleY); CFX_FxgeDevice bitmap_device; std::unique_ptr<CFX_DIBitmap> oriDevice; if (!isolated && (m_pDevice->GetRenderCaps() & FXRC_GET_BITS)) { oriDevice.reset(new CFX_DIBitmap); if (!m_pDevice->CreateCompatibleBitmap(oriDevice.get(), width, height)) return TRUE; m_pDevice->GetDIBits(oriDevice.get(), rect.left, rect.top); } if (!bitmap_device.Create(width, height, FXDIB_Argb, oriDevice.get())) return TRUE; CFX_DIBitmap* bitmap = bitmap_device.GetBitmap(); bitmap->Clear(0); CFX_Matrix new_matrix = *pObj2Device; new_matrix.TranslateI(-rect.left, -rect.top); new_matrix.Scale(scaleX, scaleY); std::unique_ptr<CFX_DIBitmap> pTextMask; if (bTextClip) { pTextMask.reset(new CFX_DIBitmap); if (!pTextMask->Create(width, height, FXDIB_8bppMask)) return TRUE; pTextMask->Clear(0); CFX_FxgeDevice text_device; text_device.Attach(pTextMask.get(), false, nullptr, false); for (uint32_t i = 0; i < pPageObj->m_ClipPath.GetTextCount(); i++) { CPDF_TextObject* textobj = pPageObj->m_ClipPath.GetText(i); if (!textobj) { break; } CFX_Matrix text_matrix; textobj->GetTextMatrix(&text_matrix); CPDF_TextRenderer::DrawTextPath( &text_device, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, textobj->m_TextState.GetFont(), textobj->m_TextState.GetFontSize(), &text_matrix, &new_matrix, textobj->m_GraphState.GetObject(), (FX_ARGB)-1, 0, nullptr, 0); } } CPDF_RenderStatus bitmap_render; bitmap_render.Initialize(m_pContext, &bitmap_device, nullptr, m_pStopObj, nullptr, nullptr, &m_Options, 0, m_bDropObjects, pFormResource, TRUE); bitmap_render.ProcessObjectNoClip(pPageObj, &new_matrix); m_bStopped = bitmap_render.m_bStopped; if (pSMaskDict) { CFX_Matrix smask_matrix = *pPageObj->m_GeneralState.GetSMaskMatrix(); smask_matrix.Concat(*pObj2Device); std::unique_ptr<CFX_DIBSource> pSMaskSource( LoadSMask(pSMaskDict, &rect, &smask_matrix)); if (pSMaskSource) bitmap->MultiplyAlpha(pSMaskSource.get()); } if (pTextMask) { bitmap->MultiplyAlpha(pTextMask.get()); pTextMask.reset(); } int32_t blitAlpha = 255; if (Transparency & PDFTRANS_GROUP && group_alpha != 1.0f) { blitAlpha = (int32_t)(group_alpha * 255); #ifndef _SKIA_SUPPORT_ bitmap->MultiplyAlpha(blitAlpha); blitAlpha = 255; #endif } Transparency = m_Transparency; if (pPageObj->IsForm()) { Transparency |= PDFTRANS_GROUP; } CompositeDIBitmap(bitmap, rect.left, rect.top, 0, blitAlpha, blend_type, Transparency); #if defined _SKIA_SUPPORT_ DebugVerifyDeviceIsPreMultiplied(); #endif return TRUE; }
void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern, CPDF_PageObject* pPageObj, const CFX_Matrix* pObj2Device, FX_BOOL bStroke) { if (!pPattern->Load()) { return; } m_pDevice->SaveState(); if (pPageObj->m_Type == PDFPAGE_PATH) { if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) { m_pDevice->RestoreState(); return; } } else if (pPageObj->m_Type == PDFPAGE_IMAGE) { FX_RECT rect = pPageObj->GetBBox(pObj2Device); m_pDevice->SetClip_Rect(&rect); } else { return; } FX_RECT clip_box = m_pDevice->GetClipBox(); if (clip_box.IsEmpty()) { m_pDevice->RestoreState(); return; } CFX_Matrix dCTM = m_pDevice->GetCTM(); FX_FLOAT sa = FXSYS_fabs(dCTM.a); FX_FLOAT sd = FXSYS_fabs(dCTM.d); clip_box.right = clip_box.left + (int32_t)FXSYS_ceil(clip_box.Width() * sa); clip_box.bottom = clip_box.top + (int32_t)FXSYS_ceil(clip_box.Height() * sd); CFX_Matrix mtPattern2Device = pPattern->m_Pattern2Form; mtPattern2Device.Concat(*pObj2Device); GetScaledMatrix(mtPattern2Device); FX_BOOL bAligned = FALSE; if (pPattern->m_BBox.left == 0 && pPattern->m_BBox.bottom == 0 && pPattern->m_BBox.right == pPattern->m_XStep && pPattern->m_BBox.top == pPattern->m_YStep && (mtPattern2Device.IsScaled() || mtPattern2Device.Is90Rotated())) { bAligned = TRUE; } CFX_FloatRect cell_bbox = pPattern->m_BBox; mtPattern2Device.TransformRect(cell_bbox); int width = (int)FXSYS_ceil(cell_bbox.Width()); int height = (int)FXSYS_ceil(cell_bbox.Height()); if (width == 0) { width = 1; } if (height == 0) { height = 1; } int min_col, max_col, min_row, max_row; CFX_Matrix mtDevice2Pattern; mtDevice2Pattern.SetReverse(mtPattern2Device); CFX_FloatRect clip_box_p(clip_box); clip_box_p.Transform(&mtDevice2Pattern); min_col = (int)FXSYS_ceil( FXSYS_Div(clip_box_p.left - pPattern->m_BBox.right, pPattern->m_XStep)); max_col = (int)FXSYS_floor( FXSYS_Div(clip_box_p.right - pPattern->m_BBox.left, pPattern->m_XStep)); min_row = (int)FXSYS_ceil( FXSYS_Div(clip_box_p.bottom - pPattern->m_BBox.top, pPattern->m_YStep)); max_row = (int)FXSYS_floor( FXSYS_Div(clip_box_p.top - pPattern->m_BBox.bottom, pPattern->m_YStep)); if (width > clip_box.Width() || height > clip_box.Height() || width * height > clip_box.Width() * clip_box.Height()) { CPDF_GraphicStates* pStates = NULL; if (!pPattern->m_bColored) { pStates = CloneObjStates(pPageObj, bStroke); } CPDF_Dictionary* pFormResource = NULL; if (pPattern->m_pForm->m_pFormDict) { pFormResource = pPattern->m_pForm->m_pFormDict->GetDict("Resources"); } for (int col = min_col; col <= max_col; col++) for (int row = min_row; row <= max_row; row++) { FX_FLOAT orig_x, orig_y; orig_x = col * pPattern->m_XStep; orig_y = row * pPattern->m_YStep; mtPattern2Device.Transform(orig_x, orig_y); CFX_Matrix matrix = *pObj2Device; matrix.Translate(orig_x - mtPattern2Device.e, orig_y - mtPattern2Device.f); m_pDevice->SaveState(); CPDF_RenderStatus status; status.Initialize(m_pContext, m_pDevice, NULL, NULL, this, pStates, &m_Options, pPattern->m_pForm->m_Transparency, m_bDropObjects, pFormResource); status.RenderObjectList(pPattern->m_pForm, &matrix); m_pDevice->RestoreState(); } m_pDevice->RestoreState(); delete pStates; return; } if (bAligned) { int orig_x = FXSYS_round(mtPattern2Device.e); int orig_y = FXSYS_round(mtPattern2Device.f); min_col = (clip_box.left - orig_x) / width; if (clip_box.left < orig_x) { min_col--; } max_col = (clip_box.right - orig_x) / width; if (clip_box.right <= orig_x) { max_col--; } min_row = (clip_box.top - orig_y) / height; if (clip_box.top < orig_y) { min_row--; } max_row = (clip_box.bottom - orig_y) / height; if (clip_box.bottom <= orig_y) { max_row--; } } FX_FLOAT left_offset = cell_bbox.left - mtPattern2Device.e; FX_FLOAT top_offset = cell_bbox.bottom - mtPattern2Device.f; CFX_DIBitmap* pPatternBitmap = NULL; if (width * height < 16) { CFX_DIBitmap* pEnlargedBitmap = DrawPatternBitmap(m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern, pObj2Device, 8, 8, m_Options.m_Flags); pPatternBitmap = pEnlargedBitmap->StretchTo(width, height); delete pEnlargedBitmap; } else { pPatternBitmap = DrawPatternBitmap( m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern, pObj2Device, width, height, m_Options.m_Flags); } if (!pPatternBitmap) { m_pDevice->RestoreState(); return; } if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) { pPatternBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor); } FX_ARGB fill_argb = GetFillArgb(pPageObj); int clip_width = clip_box.right - clip_box.left; int clip_height = clip_box.bottom - clip_box.top; CFX_DIBitmap screen; if (!screen.Create(clip_width, clip_height, FXDIB_Argb)) { return; } screen.Clear(0); FX_DWORD* src_buf = (FX_DWORD*)pPatternBitmap->GetBuffer(); for (int col = min_col; col <= max_col; col++) { for (int row = min_row; row <= max_row; row++) { int start_x, start_y; if (bAligned) { start_x = FXSYS_round(mtPattern2Device.e) + col * width - clip_box.left; start_y = FXSYS_round(mtPattern2Device.f) + row * height - clip_box.top; } else { FX_FLOAT orig_x = col * pPattern->m_XStep; FX_FLOAT orig_y = row * pPattern->m_YStep; mtPattern2Device.Transform(orig_x, orig_y); start_x = FXSYS_round(orig_x + left_offset) - clip_box.left; start_y = FXSYS_round(orig_y + top_offset) - clip_box.top; } if (width == 1 && height == 1) { if (start_x < 0 || start_x >= clip_box.Width() || start_y < 0 || start_y >= clip_box.Height()) { continue; } FX_DWORD* dest_buf = (FX_DWORD*)(screen.GetBuffer() + screen.GetPitch() * start_y + start_x * 4); if (pPattern->m_bColored) { *dest_buf = *src_buf; } else { *dest_buf = (*(uint8_t*)src_buf << 24) | (fill_argb & 0xffffff); } } else { if (pPattern->m_bColored) { screen.CompositeBitmap(start_x, start_y, width, height, pPatternBitmap, 0, 0); } else { screen.CompositeMask(start_x, start_y, width, height, pPatternBitmap, fill_argb, 0, 0); } } } } CompositeDIBitmap(&screen, clip_box.left, clip_box.top, 0, 255, FXDIB_BLEND_NORMAL, FALSE); m_pDevice->RestoreState(); delete pPatternBitmap; }