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; }
void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern, CFX_Matrix* pMatrix, FX_RECT& clip_rect, int alpha, FX_BOOL bAlphaMode) { CPDF_Function** pFuncs = pPattern->m_pFunctions; int nFuncs = pPattern->m_nFuncs; CPDF_Dictionary* pDict = pPattern->m_pShadingObj->GetDict(); CPDF_ColorSpace* pColorSpace = pPattern->m_pCS; if (!pColorSpace) { return; } FX_ARGB background = 0; if (!pPattern->m_bShadingObj && pPattern->m_pShadingObj->GetDict()->KeyExist("Background")) { CPDF_Array* pBackColor = pPattern->m_pShadingObj->GetDict()->GetArray("Background"); if (pBackColor && pBackColor->GetCount() >= (FX_DWORD)pColorSpace->CountComponents()) { CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents()); for (int i = 0; i < pColorSpace->CountComponents(); i++) { comps[i] = pBackColor->GetNumber(i); } FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f; pColorSpace->GetRGB(comps, R, G, B); background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255), (int32_t)(B * 255)); } } if (pDict->KeyExist("BBox")) { CFX_FloatRect rect = pDict->GetRect("BBox"); rect.Transform(pMatrix); clip_rect.Intersect(rect.GetOutterRect()); } CPDF_DeviceBuffer buffer; buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150); CFX_Matrix FinalMatrix = *pMatrix; FinalMatrix.Concat(*buffer.GetMatrix()); CFX_DIBitmap* pBitmap = buffer.GetBitmap(); if (!pBitmap->GetBuffer()) { return; } pBitmap->Clear(background); int fill_mode = m_Options.m_Flags; switch (pPattern->m_ShadingType) { case kInvalidShading: case kMaxShading: return; case kFunctionBasedShading: DrawFuncShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha); break; case kAxialShading: DrawAxialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha); break; case kRadialShading: DrawRadialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace, alpha); break; case kFreeFormGouraudTriangleMeshShading: { DrawFreeGouraudShading(pBitmap, &FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs, pColorSpace, alpha); } break; case kLatticeFormGouraudTriangleMeshShading: { DrawLatticeGouraudShading(pBitmap, &FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs, pColorSpace, alpha); } break; case kCoonsPatchMeshShading: case kTensorProductPatchMeshShading: { DrawCoonPatchMeshes( pPattern->m_ShadingType == kTensorProductPatchMeshShading, pBitmap, &FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs, pColorSpace, fill_mode, alpha); } break; } if (bAlphaMode) { pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha); } if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) { pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor); } buffer.OutputToDevice(); }