/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkTypes.h" #if defined(SK_BUILD_FOR_WIN) #include "SkLeanWindows.h" #ifndef UNICODE #define UNICODE #endif #ifndef _UNICODE #define _UNICODE #endif #include #include #include #include #include #include "SkColor.h" #include "SkData.h" #include "SkDraw.h" #include "SkEndian.h" #include "SkFindAndPlaceGlyph.h" #include "SkGeometry.h" #include "SkHRESULT.h" #include "SkIStream.h" #include "SkImage.h" #include "SkImageEncoder.h" #include "SkImagePriv.h" #include "SkMaskFilterBase.h" #include "SkPaint.h" #include "SkPathEffect.h" #include "SkPathOps.h" #include "SkPoint.h" #include "SkRasterClip.h" #include "SkSFNTHeader.h" #include "SkShader.h" #include "SkSize.h" #include "SkStream.h" #include "SkStrikeCache.h" #include "SkTDArray.h" #include "SkTLazy.h" #include "SkTScopedComPtr.h" #include "SkTTCFHeader.h" #include "SkTo.h" #include "SkTypefacePriv.h" #include "SkUtils.h" #include "SkVertices.h" #include "SkXPSDevice.h" //Windows defines a FLOAT type, //make it clear when converting a scalar that this is what is wanted. #define SkScalarToFLOAT(n) SkScalarToFloat(n) //Dummy representation of a GUID from createId. #define L_GUID_ID L"XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX" //Length of GUID representation from createId, including nullptr terminator. #define GUID_ID_LEN SK_ARRAY_COUNT(L_GUID_ID) /** Formats a GUID and places it into buffer. buffer should have space for at least GUID_ID_LEN wide characters. The string will always be wchar null terminated. XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX0 @return -1 if there was an error, > 0 if success. */ static int format_guid(const GUID& guid, wchar_t* buffer, size_t bufferSize, wchar_t sep = '-') { SkASSERT(bufferSize >= GUID_ID_LEN); return swprintf_s(buffer, bufferSize, L"%08lX%c%04X%c%04X%c%02X%02X%c%02X%02X%02X%02X%02X%02X", guid.Data1, sep, guid.Data2, sep, guid.Data3, sep, guid.Data4[0], guid.Data4[1], sep, guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]); } HRESULT SkXPSDevice::createId(wchar_t* buffer, size_t bufferSize, wchar_t sep) { GUID guid = {}; #ifdef SK_XPS_USE_DETERMINISTIC_IDS guid.Data1 = fNextId++; // The following make this a valid Type4 UUID. guid.Data3 = 0x4000; guid.Data4[0] = 0x80; #else HRM(CoCreateGuid(&guid), "Could not create GUID for id."); #endif if (format_guid(guid, buffer, bufferSize, sep) == -1) { HRM(E_UNEXPECTED, "Could not format GUID into id."); } return S_OK; } SkXPSDevice::SkXPSDevice(SkISize s) : INHERITED(SkImageInfo::MakeUnknown(s.width(), s.height()), SkSurfaceProps(0, kUnknown_SkPixelGeometry)) , fCurrentPage(0) {} SkXPSDevice::~SkXPSDevice() {} SkXPSDevice::TypefaceUse::TypefaceUse() : typefaceId(0xffffffff) , fontData(nullptr) , xpsFont(nullptr) , glyphsUsed(nullptr) {} SkXPSDevice::TypefaceUse::~TypefaceUse() { //xpsFont owns fontData ref this->xpsFont->Release(); delete this->glyphsUsed; } bool SkXPSDevice::beginPortfolio(SkWStream* outputStream, IXpsOMObjectFactory* factory) { SkASSERT(factory); fXpsFactory.reset(SkRefComPtr(factory)); HRB(SkWIStream::CreateFromSkWStream(outputStream, &this->fOutputStream)); return true; } bool SkXPSDevice::beginSheet( const SkVector& unitsPerMeter, const SkVector& pixelsPerMeter, const SkSize& trimSize, const SkRect* mediaBox, const SkRect* bleedBox, const SkRect* artBox, const SkRect* cropBox) { ++this->fCurrentPage; //For simplicity, just write everything out in geometry units, //then have a base canvas do the scale to physical units. this->fCurrentCanvasSize = trimSize; this->fCurrentUnitsPerMeter = unitsPerMeter; this->fCurrentPixelsPerMeter = pixelsPerMeter; return this->createCanvasForLayer(); } bool SkXPSDevice::createCanvasForLayer() { SkASSERT(fXpsFactory); fCurrentXpsCanvas.reset(); HRB(fXpsFactory->CreateCanvas(&fCurrentXpsCanvas)); return true; } template static constexpr size_t sk_digits_in() { return static_cast(std::numeric_limits::digits10 + 1); } HRESULT SkXPSDevice::createXpsThumbnail(IXpsOMPage* page, const unsigned int pageNum, IXpsOMImageResource** image) { SkTScopedComPtr thumbnailGenerator; HRM(CoCreateInstance( CLSID_XpsOMThumbnailGenerator, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&thumbnailGenerator)), "Could not create thumbnail generator."); SkTScopedComPtr partUri; constexpr size_t size = SkTMax( SK_ARRAY_COUNT(L"/Documents/1/Metadata/.png") + sk_digits_in(), SK_ARRAY_COUNT(L"/Metadata/" L_GUID_ID L".png")); wchar_t buffer[size]; if (pageNum > 0) { swprintf_s(buffer, size, L"/Documents/1/Metadata/%u.png", pageNum); } else { wchar_t id[GUID_ID_LEN]; HR(this->createId(id, GUID_ID_LEN)); swprintf_s(buffer, size, L"/Metadata/%s.png", id); } HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri), "Could not create thumbnail part uri."); HRM(thumbnailGenerator->GenerateThumbnail(page, XPS_IMAGE_TYPE_PNG, XPS_THUMBNAIL_SIZE_LARGE, partUri.get(), image), "Could not generate thumbnail."); return S_OK; } HRESULT SkXPSDevice::createXpsPage(const XPS_SIZE& pageSize, IXpsOMPage** page) { constexpr size_t size = SK_ARRAY_COUNT(L"/Documents/1/Pages/.fpage") + sk_digits_in(); wchar_t buffer[size]; swprintf_s(buffer, size, L"/Documents/1/Pages/%u.fpage", this->fCurrentPage); SkTScopedComPtr partUri; HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri), "Could not create page part uri."); //If the language is unknown, use "und" (XPS Spec 2.3.5.1). HRM(this->fXpsFactory->CreatePage(&pageSize, L"und", partUri.get(), page), "Could not create page."); return S_OK; } HRESULT SkXPSDevice::initXpsDocumentWriter(IXpsOMImageResource* image) { //Create package writer. { SkTScopedComPtr partUri; HRM(this->fXpsFactory->CreatePartUri(L"/FixedDocumentSequence.fdseq", &partUri), "Could not create document sequence part uri."); HRM(this->fXpsFactory->CreatePackageWriterOnStream( this->fOutputStream.get(), TRUE, XPS_INTERLEAVING_OFF, //XPS_INTERLEAVING_ON, partUri.get(), nullptr, image, nullptr, nullptr, &this->fPackageWriter), "Could not create package writer."); } //Begin the lone document. { SkTScopedComPtr partUri; HRM(this->fXpsFactory->CreatePartUri( L"/Documents/1/FixedDocument.fdoc", &partUri), "Could not create fixed document part uri."); HRM(this->fPackageWriter->StartNewDocument(partUri.get(), nullptr, nullptr, nullptr, nullptr), "Could not start document."); } return S_OK; } bool SkXPSDevice::endSheet() { //XPS is fixed at 96dpi (XPS Spec 11.1). static const float xpsDPI = 96.0f; static const float inchesPerMeter = 10000.0f / 254.0f; static const float targetUnitsPerMeter = xpsDPI * inchesPerMeter; const float scaleX = targetUnitsPerMeter / SkScalarToFLOAT(this->fCurrentUnitsPerMeter.fX); const float scaleY = targetUnitsPerMeter / SkScalarToFLOAT(this->fCurrentUnitsPerMeter.fY); //Create the scale canvas. SkTScopedComPtr scaleCanvas; HRBM(this->fXpsFactory->CreateCanvas(&scaleCanvas), "Could not create scale canvas."); SkTScopedComPtr scaleCanvasVisuals; HRBM(scaleCanvas->GetVisuals(&scaleCanvasVisuals), "Could not get scale canvas visuals."); SkTScopedComPtr geomToPhys; XPS_MATRIX rawGeomToPhys = { scaleX, 0, 0, scaleY, 0, 0, }; HRBM(this->fXpsFactory->CreateMatrixTransform(&rawGeomToPhys, &geomToPhys), "Could not create geometry to physical transform."); HRBM(scaleCanvas->SetTransformLocal(geomToPhys.get()), "Could not set transform on scale canvas."); //Add the content canvas to the scale canvas. HRBM(scaleCanvasVisuals->Append(this->fCurrentXpsCanvas.get()), "Could not add base canvas to scale canvas."); //Create the page. XPS_SIZE pageSize = { SkScalarToFLOAT(this->fCurrentCanvasSize.width()) * scaleX, SkScalarToFLOAT(this->fCurrentCanvasSize.height()) * scaleY, }; SkTScopedComPtr page; HRB(this->createXpsPage(pageSize, &page)); SkTScopedComPtr pageVisuals; HRBM(page->GetVisuals(&pageVisuals), "Could not get page visuals."); //Add the scale canvas to the page. HRBM(pageVisuals->Append(scaleCanvas.get()), "Could not add scale canvas to page."); //Create the package writer if it hasn't been created yet. if (nullptr == this->fPackageWriter.get()) { SkTScopedComPtr image; //Ignore return, thumbnail is completely optional. this->createXpsThumbnail(page.get(), 0, &image); HRB(this->initXpsDocumentWriter(image.get())); } HRBM(this->fPackageWriter->AddPage(page.get(), &pageSize, nullptr, nullptr, nullptr, nullptr), "Could not write the page."); this->fCurrentXpsCanvas.reset(); return true; } static HRESULT subset_typeface(SkXPSDevice::TypefaceUse* current) { //CreateFontPackage wants unsigned short. //Microsoft, Y U NO stdint.h? std::vector keepList; current->glyphsUsed->getSetValues([&keepList](unsigned v) { keepList.push_back((unsigned short)v); }); int ttcCount = (current->ttcIndex + 1); //The following are declared with the types required by CreateFontPackage. unsigned char *fontPackageBufferRaw = nullptr; unsigned long fontPackageBufferSize; unsigned long bytesWritten; unsigned long result = CreateFontPackage( (unsigned char *) current->fontData->getMemoryBase(), (unsigned long) current->fontData->getLength(), &fontPackageBufferRaw, &fontPackageBufferSize, &bytesWritten, TTFCFP_FLAGS_SUBSET | TTFCFP_FLAGS_GLYPHLIST | (ttcCount > 0 ? TTFCFP_FLAGS_TTC : 0), current->ttcIndex, TTFCFP_SUBSET, 0, 0, 0, keepList.data(), SkTo(keepList.size()), sk_malloc_throw, sk_realloc_throw, sk_free, nullptr); SkAutoTMalloc fontPackageBuffer(fontPackageBufferRaw); if (result != NO_ERROR) { SkDEBUGF("CreateFontPackage Error %lu", result); return E_UNEXPECTED; } // If it was originally a ttc, keep it a ttc. // CreateFontPackage over-allocates, realloc usually decreases the size substantially. size_t extra; if (ttcCount > 0) { // Create space for a ttc header. extra = sizeof(SkTTCFHeader) + (ttcCount * sizeof(SK_OT_ULONG)); fontPackageBuffer.realloc(bytesWritten + extra); //overlap is certain, use memmove memmove(fontPackageBuffer.get() + extra, fontPackageBuffer.get(), bytesWritten); // Write the ttc header. SkTTCFHeader* ttcfHeader = reinterpret_cast(fontPackageBuffer.get()); ttcfHeader->ttcTag = SkTTCFHeader::TAG; ttcfHeader->version = SkTTCFHeader::version_1; ttcfHeader->numOffsets = SkEndian_SwapBE32(ttcCount); SK_OT_ULONG* offsetPtr = SkTAfter(ttcfHeader); for (int i = 0; i < ttcCount; ++i, ++offsetPtr) { *offsetPtr = SkEndian_SwapBE32(SkToU32(extra)); } // Fix up offsets in sfnt table entries. SkSFNTHeader* sfntHeader = SkTAddOffset(fontPackageBuffer.get(), extra); int numTables = SkEndian_SwapBE16(sfntHeader->numTables); SkSFNTHeader::TableDirectoryEntry* tableDirectory = SkTAfter(sfntHeader); for (int i = 0; i < numTables; ++i, ++tableDirectory) { tableDirectory->offset = SkEndian_SwapBE32( SkToU32(SkEndian_SwapBE32(SkToU32(tableDirectory->offset)) + extra)); } } else { extra = 0; fontPackageBuffer.realloc(bytesWritten); } std::unique_ptr newStream(new SkMemoryStream()); newStream->setMemoryOwned(fontPackageBuffer.release(), bytesWritten + extra); SkTScopedComPtr newIStream; SkIStream::CreateFromSkStream(newStream.release(), true, &newIStream); XPS_FONT_EMBEDDING embedding; HRM(current->xpsFont->GetEmbeddingOption(&embedding), "Could not get embedding option from font."); SkTScopedComPtr partUri; HRM(current->xpsFont->GetPartName(&partUri), "Could not get part uri from font."); HRM(current->xpsFont->SetContent( newIStream.get(), embedding, partUri.get()), "Could not set new stream for subsetted font."); return S_OK; } bool SkXPSDevice::endPortfolio() { //Subset fonts if (!this->fTypefaces.empty()) { SkXPSDevice::TypefaceUse* current = &this->fTypefaces.front(); const TypefaceUse* last = &this->fTypefaces.back(); for (; current <= last; ++current) { //Ignore return for now, if it didn't subset, let it be. subset_typeface(current); } } HRBM(this->fPackageWriter->Close(), "Could not close writer."); return true; } static XPS_COLOR xps_color(const SkColor skColor) { //XPS uses non-pre-multiplied alpha (XPS Spec 11.4). XPS_COLOR xpsColor; xpsColor.colorType = XPS_COLOR_TYPE_SRGB; xpsColor.value.sRGB.alpha = SkColorGetA(skColor); xpsColor.value.sRGB.red = SkColorGetR(skColor); xpsColor.value.sRGB.green = SkColorGetG(skColor); xpsColor.value.sRGB.blue = SkColorGetB(skColor); return xpsColor; } static XPS_POINT xps_point(const SkPoint& point) { XPS_POINT xpsPoint = { SkScalarToFLOAT(point.fX), SkScalarToFLOAT(point.fY), }; return xpsPoint; } static XPS_POINT xps_point(const SkPoint& point, const SkMatrix& matrix) { SkPoint skTransformedPoint; matrix.mapXY(point.fX, point.fY, &skTransformedPoint); return xps_point(skTransformedPoint); } static XPS_SPREAD_METHOD xps_spread_method(SkShader::TileMode tileMode) { switch (tileMode) { case SkShader::kClamp_TileMode: return XPS_SPREAD_METHOD_PAD; case SkShader::kRepeat_TileMode: return XPS_SPREAD_METHOD_REPEAT; case SkShader::kMirror_TileMode: return XPS_SPREAD_METHOD_REFLECT; default: SkDEBUGFAIL("Unknown tile mode."); } return XPS_SPREAD_METHOD_PAD; } static void transform_offsets(SkScalar* stopOffsets, const int numOffsets, const SkPoint& start, const SkPoint& end, const SkMatrix& transform) { SkPoint startTransformed; transform.mapXY(start.fX, start.fY, &startTransformed); SkPoint endTransformed; transform.mapXY(end.fX, end.fY, &endTransformed); //Manhattan distance between transformed start and end. SkScalar startToEnd = (endTransformed.fX - startTransformed.fX) + (endTransformed.fY - startTransformed.fY); if (SkScalarNearlyZero(startToEnd)) { for (int i = 0; i < numOffsets; ++i) { stopOffsets[i] = 0; } return; } for (int i = 0; i < numOffsets; ++i) { SkPoint stop; stop.fX = (end.fX - start.fX) * stopOffsets[i]; stop.fY = (end.fY - start.fY) * stopOffsets[i]; SkPoint stopTransformed; transform.mapXY(stop.fX, stop.fY, &stopTransformed); //Manhattan distance between transformed start and stop. SkScalar startToStop = (stopTransformed.fX - startTransformed.fX) + (stopTransformed.fY - startTransformed.fY); //Percentage along transformed line. stopOffsets[i] = startToStop / startToEnd; } } HRESULT SkXPSDevice::createXpsTransform(const SkMatrix& matrix, IXpsOMMatrixTransform** xpsTransform) { SkScalar affine[6]; if (!matrix.asAffine(affine)) { *xpsTransform = nullptr; return S_FALSE; } XPS_MATRIX rawXpsMatrix = { SkScalarToFLOAT(affine[SkMatrix::kAScaleX]), SkScalarToFLOAT(affine[SkMatrix::kASkewY]), SkScalarToFLOAT(affine[SkMatrix::kASkewX]), SkScalarToFLOAT(affine[SkMatrix::kAScaleY]), SkScalarToFLOAT(affine[SkMatrix::kATransX]), SkScalarToFLOAT(affine[SkMatrix::kATransY]), }; HRM(this->fXpsFactory->CreateMatrixTransform(&rawXpsMatrix, xpsTransform), "Could not create transform."); return S_OK; } HRESULT SkXPSDevice::createPath(IXpsOMGeometryFigure* figure, IXpsOMVisualCollection* visuals, IXpsOMPath** path) { SkTScopedComPtr geometry; HRM(this->fXpsFactory->CreateGeometry(&geometry), "Could not create geometry."); SkTScopedComPtr figureCollection; HRM(geometry->GetFigures(&figureCollection), "Could not get figures."); HRM(figureCollection->Append(figure), "Could not add figure."); HRM(this->fXpsFactory->CreatePath(path), "Could not create path."); HRM((*path)->SetGeometryLocal(geometry.get()), "Could not set geometry"); HRM(visuals->Append(*path), "Could not add path to visuals."); return S_OK; } HRESULT SkXPSDevice::createXpsSolidColorBrush(const SkColor skColor, const SkAlpha alpha, IXpsOMBrush** xpsBrush) { XPS_COLOR xpsColor = xps_color(skColor); SkTScopedComPtr solidBrush; HRM(this->fXpsFactory->CreateSolidColorBrush(&xpsColor, nullptr, &solidBrush), "Could not create solid color brush."); HRM(solidBrush->SetOpacity(alpha / 255.0f), "Could not set opacity."); HRM(solidBrush->QueryInterface(xpsBrush), "QI Fail."); return S_OK; } HRESULT SkXPSDevice::sideOfClamp(const SkRect& areaToFill, const XPS_RECT& imageViewBox, IXpsOMImageResource* image, IXpsOMVisualCollection* visuals) { SkTScopedComPtr areaToFillFigure; HR(this->createXpsRect(areaToFill, FALSE, TRUE, &areaToFillFigure)); SkTScopedComPtr areaToFillPath; HR(this->createPath(areaToFillFigure.get(), visuals, &areaToFillPath)); SkTScopedComPtr areaToFillBrush; HRM(this->fXpsFactory->CreateImageBrush(image, &imageViewBox, &imageViewBox, &areaToFillBrush), "Could not create brush for side of clamp."); HRM(areaToFillBrush->SetTileMode(XPS_TILE_MODE_FLIPXY), "Could not set tile mode for side of clamp."); HRM(areaToFillPath->SetFillBrushLocal(areaToFillBrush.get()), "Could not set brush for side of clamp"); return S_OK; } HRESULT SkXPSDevice::cornerOfClamp(const SkRect& areaToFill, const SkColor color, IXpsOMVisualCollection* visuals) { SkTScopedComPtr areaToFillFigure; HR(this->createXpsRect(areaToFill, FALSE, TRUE, &areaToFillFigure)); SkTScopedComPtr areaToFillPath; HR(this->createPath(areaToFillFigure.get(), visuals, &areaToFillPath)); SkTScopedComPtr areaToFillBrush; HR(this->createXpsSolidColorBrush(color, 0xFF, &areaToFillBrush)); HRM(areaToFillPath->SetFillBrushLocal(areaToFillBrush.get()), "Could not set brush for corner of clamp."); return S_OK; } static const XPS_TILE_MODE XTM_N = XPS_TILE_MODE_NONE; static const XPS_TILE_MODE XTM_T = XPS_TILE_MODE_TILE; static const XPS_TILE_MODE XTM_X = XPS_TILE_MODE_FLIPX; static const XPS_TILE_MODE XTM_Y = XPS_TILE_MODE_FLIPY; static const XPS_TILE_MODE XTM_XY = XPS_TILE_MODE_FLIPXY; //TODO(bungeman): In the future, should skia add None, //handle None+Mirror and None+Repeat correctly. //None is currently an internal hack so masks don't repeat (None+None only). static XPS_TILE_MODE SkToXpsTileMode[SkShader::kTileModeCount+1] [SkShader::kTileModeCount+1] = { //Clamp //Repeat //Mirror //None /*Clamp */ {XTM_N, XTM_T, XTM_Y, XTM_N}, /*Repeat*/ {XTM_T, XTM_T, XTM_Y, XTM_N}, /*Mirror*/ {XTM_X, XTM_X, XTM_XY, XTM_X}, /*None */ {XTM_N, XTM_N, XTM_Y, XTM_N}, }; HRESULT SkXPSDevice::createXpsImageBrush( const SkBitmap& bitmap, const SkMatrix& localMatrix, const SkShader::TileMode (&xy)[2], const SkAlpha alpha, IXpsOMTileBrush** xpsBrush) { SkDynamicMemoryWStream write; if (!SkEncodeImage(&write, bitmap, SkEncodedImageFormat::kPNG, 100)) { HRM(E_FAIL, "Unable to encode bitmap as png."); } SkMemoryStream* read = new SkMemoryStream; read->setData(write.detachAsData()); SkTScopedComPtr readWrapper; HRM(SkIStream::CreateFromSkStream(read, true, &readWrapper), "Could not create stream from png data."); const size_t size = SK_ARRAY_COUNT(L"/Documents/1/Resources/Images/" L_GUID_ID L".png"); wchar_t buffer[size]; wchar_t id[GUID_ID_LEN]; HR(this->createId(id, GUID_ID_LEN)); swprintf_s(buffer, size, L"/Documents/1/Resources/Images/%s.png", id); SkTScopedComPtr imagePartUri; HRM(this->fXpsFactory->CreatePartUri(buffer, &imagePartUri), "Could not create image part uri."); SkTScopedComPtr imageResource; HRM(this->fXpsFactory->CreateImageResource( readWrapper.get(), XPS_IMAGE_TYPE_PNG, imagePartUri.get(), &imageResource), "Could not create image resource."); XPS_RECT bitmapRect = { 0.0, 0.0, static_cast(bitmap.width()), static_cast(bitmap.height()) }; SkTScopedComPtr xpsImageBrush; HRM(this->fXpsFactory->CreateImageBrush(imageResource.get(), &bitmapRect, &bitmapRect, &xpsImageBrush), "Could not create image brush."); if (SkShader::kClamp_TileMode != xy[0] && SkShader::kClamp_TileMode != xy[1]) { HRM(xpsImageBrush->SetTileMode(SkToXpsTileMode[xy[0]][xy[1]]), "Could not set image tile mode"); HRM(xpsImageBrush->SetOpacity(alpha / 255.0f), "Could not set image opacity."); HRM(xpsImageBrush->QueryInterface(xpsBrush), "QI failed."); } else { //TODO(bungeman): compute how big this really needs to be. const SkScalar BIG = SkIntToScalar(1000); //SK_ScalarMax; const FLOAT BIG_F = SkScalarToFLOAT(BIG); const SkScalar bWidth = SkIntToScalar(bitmap.width()); const SkScalar bHeight = SkIntToScalar(bitmap.height()); //create brush canvas SkTScopedComPtr brushCanvas; HRM(this->fXpsFactory->CreateCanvas(&brushCanvas), "Could not create image brush canvas."); SkTScopedComPtr brushVisuals; HRM(brushCanvas->GetVisuals(&brushVisuals), "Could not get image brush canvas visuals collection."); //create central figure const SkRect bitmapPoints = SkRect::MakeLTRB(0, 0, bWidth, bHeight); SkTScopedComPtr centralFigure; HR(this->createXpsRect(bitmapPoints, FALSE, TRUE, ¢ralFigure)); SkTScopedComPtr centralPath; HR(this->createPath(centralFigure.get(), brushVisuals.get(), ¢ralPath)); HRM(xpsImageBrush->SetTileMode(XPS_TILE_MODE_FLIPXY), "Could not set tile mode for image brush central path."); HRM(centralPath->SetFillBrushLocal(xpsImageBrush.get()), "Could not set fill brush for image brush central path."); //add left/right if (SkShader::kClamp_TileMode == xy[0]) { SkRect leftArea = SkRect::MakeLTRB(-BIG, 0, 0, bHeight); XPS_RECT leftImageViewBox = { 0.0, 0.0, 1.0, static_cast(bitmap.height()), }; HR(this->sideOfClamp(leftArea, leftImageViewBox, imageResource.get(), brushVisuals.get())); SkRect rightArea = SkRect::MakeLTRB(bWidth, 0, BIG, bHeight); XPS_RECT rightImageViewBox = { bitmap.width() - 1.0f, 0.0f, 1.0f, static_cast(bitmap.height()), }; HR(this->sideOfClamp(rightArea, rightImageViewBox, imageResource.get(), brushVisuals.get())); } //add top/bottom if (SkShader::kClamp_TileMode == xy[1]) { SkRect topArea = SkRect::MakeLTRB(0, -BIG, bWidth, 0); XPS_RECT topImageViewBox = { 0.0, 0.0, static_cast(bitmap.width()), 1.0, }; HR(this->sideOfClamp(topArea, topImageViewBox, imageResource.get(), brushVisuals.get())); SkRect bottomArea = SkRect::MakeLTRB(0, bHeight, bWidth, BIG); XPS_RECT bottomImageViewBox = { 0.0f, bitmap.height() - 1.0f, static_cast(bitmap.width()), 1.0f, }; HR(this->sideOfClamp(bottomArea, bottomImageViewBox, imageResource.get(), brushVisuals.get())); } //add tl, tr, bl, br if (SkShader::kClamp_TileMode == xy[0] && SkShader::kClamp_TileMode == xy[1]) { const SkColor tlColor = bitmap.getColor(0,0); const SkRect tlArea = SkRect::MakeLTRB(-BIG, -BIG, 0, 0); HR(this->cornerOfClamp(tlArea, tlColor, brushVisuals.get())); const SkColor trColor = bitmap.getColor(bitmap.width()-1,0); const SkRect trArea = SkRect::MakeLTRB(bWidth, -BIG, BIG, 0); HR(this->cornerOfClamp(trArea, trColor, brushVisuals.get())); const SkColor brColor = bitmap.getColor(bitmap.width()-1, bitmap.height()-1); const SkRect brArea = SkRect::MakeLTRB(bWidth, bHeight, BIG, BIG); HR(this->cornerOfClamp(brArea, brColor, brushVisuals.get())); const SkColor blColor = bitmap.getColor(0,bitmap.height()-1); const SkRect blArea = SkRect::MakeLTRB(-BIG, bHeight, 0, BIG); HR(this->cornerOfClamp(blArea, blColor, brushVisuals.get())); } //create visual brush from canvas XPS_RECT bound = {}; if (SkShader::kClamp_TileMode == xy[0] && SkShader::kClamp_TileMode == xy[1]) { bound.x = BIG_F / -2; bound.y = BIG_F / -2; bound.width = BIG_F; bound.height = BIG_F; } else if (SkShader::kClamp_TileMode == xy[0]) { bound.x = BIG_F / -2; bound.y = 0.0f; bound.width = BIG_F; bound.height = static_cast(bitmap.height()); } else if (SkShader::kClamp_TileMode == xy[1]) { bound.x = 0; bound.y = BIG_F / -2; bound.width = static_cast(bitmap.width()); bound.height = BIG_F; } SkTScopedComPtr clampBrush; HRM(this->fXpsFactory->CreateVisualBrush(&bound, &bound, &clampBrush), "Could not create visual brush for image brush."); HRM(clampBrush->SetVisualLocal(brushCanvas.get()), "Could not set canvas on visual brush for image brush."); HRM(clampBrush->SetTileMode(SkToXpsTileMode[xy[0]][xy[1]]), "Could not set tile mode on visual brush for image brush."); HRM(clampBrush->SetOpacity(alpha / 255.0f), "Could not set opacity on visual brush for image brush."); HRM(clampBrush->QueryInterface(xpsBrush), "QI failed."); } SkTScopedComPtr xpsMatrixToUse; HR(this->createXpsTransform(localMatrix, &xpsMatrixToUse)); if (xpsMatrixToUse.get()) { HRM((*xpsBrush)->SetTransformLocal(xpsMatrixToUse.get()), "Could not set transform for image brush."); } else { //TODO(bungeman): perspective bitmaps in general. } return S_OK; } HRESULT SkXPSDevice::createXpsGradientStop(const SkColor skColor, const SkScalar offset, IXpsOMGradientStop** xpsGradStop) { XPS_COLOR gradStopXpsColor = xps_color(skColor); HRM(this->fXpsFactory->CreateGradientStop(&gradStopXpsColor, nullptr, SkScalarToFLOAT(offset), xpsGradStop), "Could not create gradient stop."); return S_OK; } HRESULT SkXPSDevice::createXpsLinearGradient(SkShader::GradientInfo info, const SkAlpha alpha, const SkMatrix& localMatrix, IXpsOMMatrixTransform* xpsMatrix, IXpsOMBrush** xpsBrush) { XPS_POINT startPoint; XPS_POINT endPoint; if (xpsMatrix) { startPoint = xps_point(info.fPoint[0]); endPoint = xps_point(info.fPoint[1]); } else { transform_offsets(info.fColorOffsets, info.fColorCount, info.fPoint[0], info.fPoint[1], localMatrix); startPoint = xps_point(info.fPoint[0], localMatrix); endPoint = xps_point(info.fPoint[1], localMatrix); } SkTScopedComPtr gradStop0; HR(createXpsGradientStop(info.fColors[0], info.fColorOffsets[0], &gradStop0)); SkTScopedComPtr gradStop1; HR(createXpsGradientStop(info.fColors[1], info.fColorOffsets[1], &gradStop1)); SkTScopedComPtr gradientBrush; HRM(this->fXpsFactory->CreateLinearGradientBrush(gradStop0.get(), gradStop1.get(), &startPoint, &endPoint, &gradientBrush), "Could not create linear gradient brush."); if (xpsMatrix) { HRM(gradientBrush->SetTransformLocal(xpsMatrix), "Could not set transform on linear gradient brush."); } SkTScopedComPtr gradStopCollection; HRM(gradientBrush->GetGradientStops(&gradStopCollection), "Could not get linear gradient stop collection."); for (int i = 2; i < info.fColorCount; ++i) { SkTScopedComPtr gradStop; HR(createXpsGradientStop(info.fColors[i], info.fColorOffsets[i], &gradStop)); HRM(gradStopCollection->Append(gradStop.get()), "Could not add linear gradient stop."); } HRM(gradientBrush->SetSpreadMethod(xps_spread_method(info.fTileMode)), "Could not set spread method of linear gradient."); HRM(gradientBrush->SetOpacity(alpha / 255.0f), "Could not set opacity of linear gradient brush."); HRM(gradientBrush->QueryInterface(xpsBrush), "QI failed"); return S_OK; } HRESULT SkXPSDevice::createXpsRadialGradient(SkShader::GradientInfo info, const SkAlpha alpha, const SkMatrix& localMatrix, IXpsOMMatrixTransform* xpsMatrix, IXpsOMBrush** xpsBrush) { SkTScopedComPtr gradStop0; HR(createXpsGradientStop(info.fColors[0], info.fColorOffsets[0], &gradStop0)); SkTScopedComPtr gradStop1; HR(createXpsGradientStop(info.fColors[1], info.fColorOffsets[1], &gradStop1)); //TODO: figure out how to fake better if not affine XPS_POINT centerPoint; XPS_POINT gradientOrigin; XPS_SIZE radiiSizes; if (xpsMatrix) { centerPoint = xps_point(info.fPoint[0]); gradientOrigin = xps_point(info.fPoint[0]); radiiSizes.width = SkScalarToFLOAT(info.fRadius[0]); radiiSizes.height = SkScalarToFLOAT(info.fRadius[0]); } else { centerPoint = xps_point(info.fPoint[0], localMatrix); gradientOrigin = xps_point(info.fPoint[0], localMatrix); SkScalar radius = info.fRadius[0]; SkVector vec[2]; vec[0].set(radius, 0); vec[1].set(0, radius); localMatrix.mapVectors(vec, 2); SkScalar d0 = vec[0].length(); SkScalar d1 = vec[1].length(); radiiSizes.width = SkScalarToFLOAT(d0); radiiSizes.height = SkScalarToFLOAT(d1); } SkTScopedComPtr gradientBrush; HRM(this->fXpsFactory->CreateRadialGradientBrush(gradStop0.get(), gradStop1.get(), ¢erPoint, &gradientOrigin, &radiiSizes, &gradientBrush), "Could not create radial gradient brush."); if (xpsMatrix) { HRM(gradientBrush->SetTransformLocal(xpsMatrix), "Could not set transform on radial gradient brush."); } SkTScopedComPtr gradStopCollection; HRM(gradientBrush->GetGradientStops(&gradStopCollection), "Could not get radial gradient stop collection."); for (int i = 2; i < info.fColorCount; ++i) { SkTScopedComPtr gradStop; HR(createXpsGradientStop(info.fColors[i], info.fColorOffsets[i], &gradStop)); HRM(gradStopCollection->Append(gradStop.get()), "Could not add radial gradient stop."); } HRM(gradientBrush->SetSpreadMethod(xps_spread_method(info.fTileMode)), "Could not set spread method of radial gradient."); HRM(gradientBrush->SetOpacity(alpha / 255.0f), "Could not set opacity of radial gradient brush."); HRM(gradientBrush->QueryInterface(xpsBrush), "QI failed."); return S_OK; } HRESULT SkXPSDevice::createXpsBrush(const SkPaint& skPaint, IXpsOMBrush** brush, const SkMatrix* parentTransform) { const SkShader *shader = skPaint.getShader(); if (nullptr == shader) { HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush)); return S_OK; } //Gradient shaders. SkShader::GradientInfo info; info.fColorCount = 0; info.fColors = nullptr; info.fColorOffsets = nullptr; SkShader::GradientType gradientType = shader->asAGradient(&info); if (SkShader::kNone_GradientType == gradientType) { //Nothing to see, move along. } else if (SkShader::kColor_GradientType == gradientType) { SkASSERT(1 == info.fColorCount); SkColor color; info.fColors = &color; shader->asAGradient(&info); SkAlpha alpha = skPaint.getAlpha(); HR(this->createXpsSolidColorBrush(color, alpha, brush)); return S_OK; } else { if (info.fColorCount == 0) { const SkColor color = skPaint.getColor(); HR(this->createXpsSolidColorBrush(color, 0xFF, brush)); return S_OK; } SkAutoTArray colors(info.fColorCount); SkAutoTArray colorOffsets(info.fColorCount); info.fColors = colors.get(); info.fColorOffsets = colorOffsets.get(); shader->asAGradient(&info); if (1 == info.fColorCount) { SkColor color = info.fColors[0]; SkAlpha alpha = skPaint.getAlpha(); HR(this->createXpsSolidColorBrush(color, alpha, brush)); return S_OK; } SkMatrix localMatrix = shader->getLocalMatrix(); if (parentTransform) { localMatrix.preConcat(*parentTransform); } SkTScopedComPtr xpsMatrixToUse; HR(this->createXpsTransform(localMatrix, &xpsMatrixToUse)); if (SkShader::kLinear_GradientType == gradientType) { HR(this->createXpsLinearGradient(info, skPaint.getAlpha(), localMatrix, xpsMatrixToUse.get(), brush)); return S_OK; } if (SkShader::kRadial_GradientType == gradientType) { HR(this->createXpsRadialGradient(info, skPaint.getAlpha(), localMatrix, xpsMatrixToUse.get(), brush)); return S_OK; } if (SkShader::kConical_GradientType == gradientType) { //simple if affine and one is 0, otherwise will have to fake } if (SkShader::kSweep_GradientType == gradientType) { //have to fake } } SkBitmap outTexture; SkMatrix outMatrix; SkShader::TileMode xy[2]; SkImage* image = shader->isAImage(&outMatrix, xy); if (image && image->asLegacyBitmap(&outTexture)) { //TODO: outMatrix?? SkMatrix localMatrix = shader->getLocalMatrix(); if (parentTransform) { localMatrix.postConcat(*parentTransform); } SkTScopedComPtr tileBrush; HR(this->createXpsImageBrush(outTexture, localMatrix, xy, skPaint.getAlpha(), &tileBrush)); HRM(tileBrush->QueryInterface(brush), "QI failed."); } else { HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush)); } return S_OK; } static bool rect_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) { const bool zeroWidth = (0 == paint.getStrokeWidth()); const bool stroke = (SkPaint::kFill_Style != paint.getStyle()); return paint.getPathEffect() || paint.getMaskFilter() || (stroke && ( (matrix.hasPerspective() && !zeroWidth) || SkPaint::kMiter_Join != paint.getStrokeJoin() || (SkPaint::kMiter_Join == paint.getStrokeJoin() && paint.getStrokeMiter() < SK_ScalarSqrt2) )) ; } HRESULT SkXPSDevice::createXpsRect(const SkRect& rect, BOOL stroke, BOOL fill, IXpsOMGeometryFigure** xpsRect) { const SkPoint points[4] = { { rect.fLeft, rect.fTop }, { rect.fRight, rect.fTop }, { rect.fRight, rect.fBottom }, { rect.fLeft, rect.fBottom }, }; return this->createXpsQuad(points, stroke, fill, xpsRect); } HRESULT SkXPSDevice::createXpsQuad(const SkPoint (&points)[4], BOOL stroke, BOOL fill, IXpsOMGeometryFigure** xpsQuad) { // Define the start point. XPS_POINT startPoint = xps_point(points[0]); // Create the figure. HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint, xpsQuad), "Could not create quad geometry figure."); // Define the type of each segment. XPS_SEGMENT_TYPE segmentTypes[3] = { XPS_SEGMENT_TYPE_LINE, XPS_SEGMENT_TYPE_LINE, XPS_SEGMENT_TYPE_LINE, }; // Define the x and y coordinates of each corner of the figure. FLOAT segmentData[6] = { SkScalarToFLOAT(points[1].fX), SkScalarToFLOAT(points[1].fY), SkScalarToFLOAT(points[2].fX), SkScalarToFLOAT(points[2].fY), SkScalarToFLOAT(points[3].fX), SkScalarToFLOAT(points[3].fY), }; // Describe if the segments are stroked. BOOL segmentStrokes[3] = { stroke, stroke, stroke, }; // Add the segment data to the figure. HRM((*xpsQuad)->SetSegments( 3, 6, segmentTypes , segmentData, segmentStrokes), "Could not add segment data to quad."); // Set the closed and filled properties of the figure. HRM((*xpsQuad)->SetIsClosed(stroke), "Could not set quad close."); HRM((*xpsQuad)->SetIsFilled(fill), "Could not set quad fill."); return S_OK; } template void draw(SkClipStackDevice* dev, F f, Args&&... args) { SkIRect r = dev->devClipBounds(); SkRasterClip rc(r); SkDraw draw; draw.fMatrix = &dev->ctm(); draw.fDst = SkPixmap(SkImageInfo::MakeUnknown(r.right(), r.bottom()), nullptr, 0); draw.fRC = &rc; (draw.*f)(std::forward(args)...); } void SkXPSDevice::drawPoints(SkCanvas::PointMode mode, size_t count, const SkPoint points[], const SkPaint& paint) { draw(this, &SkDraw::drawPoints, mode, count, points, paint, this); } void SkXPSDevice::drawVertices(const SkVertices* v, const SkVertices::Bone bones[], int boneCount, SkBlendMode blendMode, const SkPaint& paint) { draw(this, &SkDraw::drawVertices, v->mode(), v->vertexCount(), v->positions(), v->texCoords(), v->colors(), v->boneIndices(), v->boneWeights(), blendMode, v->indices(), v->indexCount(), paint, bones, boneCount); } void SkXPSDevice::drawPaint(const SkPaint& origPaint) { const SkRect r = SkRect::MakeSize(this->fCurrentCanvasSize); //If trying to paint with a stroke, ignore that and fill. SkPaint* fillPaint = const_cast(&origPaint); SkTCopyOnFirstWrite paint(origPaint); if (paint->getStyle() != SkPaint::kFill_Style) { paint.writable()->setStyle(SkPaint::kFill_Style); } this->internalDrawRect(r, false, *fillPaint); } void SkXPSDevice::drawRect(const SkRect& r, const SkPaint& paint) { this->internalDrawRect(r, true, paint); } void SkXPSDevice::drawRRect(const SkRRect& rr, const SkPaint& paint) { SkPath path; path.addRRect(rr); this->drawPath(path, paint, true); } static SkIRect size(const SkBaseDevice& dev) { return {0, 0, dev.width(), dev.height()}; } void SkXPSDevice::internalDrawRect(const SkRect& r, bool transformRect, const SkPaint& paint) { //Exit early if there is nothing to draw. if (this->cs().isEmpty(size(*this)) || (paint.getAlpha() == 0 && paint.isSrcOver())) { return; } //Path the rect if we can't optimize it. if (rect_must_be_pathed(paint, this->ctm())) { SkPath tmp; tmp.addRect(r); tmp.setFillType(SkPath::kWinding_FillType); this->drawPath(tmp, paint, true); return; } //Create the shaded path. SkTScopedComPtr shadedPath; HRVM(this->fXpsFactory->CreatePath(&shadedPath), "Could not create shaded path for rect."); //Create the shaded geometry. SkTScopedComPtr shadedGeometry; HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry), "Could not create shaded geometry for rect."); //Add the geometry to the shaded path. HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()), "Could not set shaded geometry for rect."); //Set the brushes. BOOL fill = FALSE; BOOL stroke = FALSE; HRV(this->shadePath(shadedPath.get(), paint, this->ctm(), &fill, &stroke)); bool xpsTransformsPath = true; //Transform the geometry. if (transformRect && xpsTransformsPath) { SkTScopedComPtr xpsTransform; HRV(this->createXpsTransform(this->ctm(), &xpsTransform)); if (xpsTransform.get()) { HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()), "Could not set transform for rect."); } else { xpsTransformsPath = false; } } //Create the figure. SkTScopedComPtr rectFigure; { SkPoint points[4] = { { r.fLeft, r.fTop }, { r.fLeft, r.fBottom }, { r.fRight, r.fBottom }, { r.fRight, r.fTop }, }; if (!xpsTransformsPath && transformRect) { this->ctm().mapPoints(points, SK_ARRAY_COUNT(points)); } HRV(this->createXpsQuad(points, stroke, fill, &rectFigure)); } //Get the figures of the shaded geometry. SkTScopedComPtr shadedFigures; HRVM(shadedGeometry->GetFigures(&shadedFigures), "Could not get shaded figures for rect."); //Add the figure to the shaded geometry figures. HRVM(shadedFigures->Append(rectFigure.get()), "Could not add shaded figure for rect."); HRV(this->clip(shadedPath.get())); //Add the shaded path to the current visuals. SkTScopedComPtr currentVisuals; HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals), "Could not get current visuals for rect."); HRVM(currentVisuals->Append(shadedPath.get()), "Could not add rect to current visuals."); } static HRESULT close_figure(const SkTDArray& segmentTypes, const SkTDArray& segmentStrokes, const SkTDArray& segmentData, BOOL stroke, BOOL fill, IXpsOMGeometryFigure* figure, IXpsOMGeometryFigureCollection* figures) { // Add the segment data to the figure. HRM(figure->SetSegments(segmentTypes.count(), segmentData.count(), segmentTypes.begin() , segmentData.begin(), segmentStrokes.begin()), "Could not set path segments."); // Set the closed and filled properties of the figure. HRM(figure->SetIsClosed(stroke), "Could not set path closed."); HRM(figure->SetIsFilled(fill), "Could not set path fill."); // Add the figure created above to this geometry. HRM(figures->Append(figure), "Could not add path to geometry."); return S_OK; } HRESULT SkXPSDevice::addXpsPathGeometry( IXpsOMGeometryFigureCollection* xpsFigures, BOOL stroke, BOOL fill, const SkPath& path) { SkTDArray segmentTypes; SkTDArray segmentStrokes; SkTDArray segmentData; SkTScopedComPtr xpsFigure; SkPath::Iter iter(path, true); SkPoint points[4]; SkPath::Verb verb; while ((verb = iter.next(points)) != SkPath::kDone_Verb) { switch (verb) { case SkPath::kMove_Verb: { if (xpsFigure.get()) { HR(close_figure(segmentTypes, segmentStrokes, segmentData, stroke, fill, xpsFigure.get() , xpsFigures)); xpsFigure.reset(); segmentTypes.rewind(); segmentStrokes.rewind(); segmentData.rewind(); } // Define the start point. XPS_POINT startPoint = xps_point(points[0]); // Create the figure. HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint, &xpsFigure), "Could not create path geometry figure."); break; } case SkPath::kLine_Verb: if (iter.isCloseLine()) break; //ignore the line, auto-closed segmentTypes.push_back(XPS_SEGMENT_TYPE_LINE); segmentStrokes.push_back(stroke); segmentData.push_back(SkScalarToFLOAT(points[1].fX)); segmentData.push_back(SkScalarToFLOAT(points[1].fY)); break; case SkPath::kQuad_Verb: segmentTypes.push_back(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER); segmentStrokes.push_back(stroke); segmentData.push_back(SkScalarToFLOAT(points[1].fX)); segmentData.push_back(SkScalarToFLOAT(points[1].fY)); segmentData.push_back(SkScalarToFLOAT(points[2].fX)); segmentData.push_back(SkScalarToFLOAT(points[2].fY)); break; case SkPath::kCubic_Verb: segmentTypes.push_back(XPS_SEGMENT_TYPE_BEZIER); segmentStrokes.push_back(stroke); segmentData.push_back(SkScalarToFLOAT(points[1].fX)); segmentData.push_back(SkScalarToFLOAT(points[1].fY)); segmentData.push_back(SkScalarToFLOAT(points[2].fX)); segmentData.push_back(SkScalarToFLOAT(points[2].fY)); segmentData.push_back(SkScalarToFLOAT(points[3].fX)); segmentData.push_back(SkScalarToFLOAT(points[3].fY)); break; case SkPath::kConic_Verb: { const SkScalar tol = SK_Scalar1 / 4; SkAutoConicToQuads converter; const SkPoint* quads = converter.computeQuads(points, iter.conicWeight(), tol); for (int i = 0; i < converter.countQuads(); ++i) { segmentTypes.push_back(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER); segmentStrokes.push_back(stroke); segmentData.push_back(SkScalarToFLOAT(quads[2 * i + 1].fX)); segmentData.push_back(SkScalarToFLOAT(quads[2 * i + 1].fY)); segmentData.push_back(SkScalarToFLOAT(quads[2 * i + 2].fX)); segmentData.push_back(SkScalarToFLOAT(quads[2 * i + 2].fY)); } break; } case SkPath::kClose_Verb: // we ignore these, and just get the whole segment from // the corresponding line/quad/cubic verbs break; default: SkDEBUGFAIL("unexpected verb"); break; } } if (xpsFigure.get()) { HR(close_figure(segmentTypes, segmentStrokes, segmentData, stroke, fill, xpsFigure.get(), xpsFigures)); } return S_OK; } void SkXPSDevice::convertToPpm(const SkMaskFilter* filter, SkMatrix* matrix, SkVector* ppuScale, const SkIRect& clip, SkIRect* clipIRect) { //This action is in unit space, but the ppm is specified in physical space. ppuScale->set(fCurrentPixelsPerMeter.fX / fCurrentUnitsPerMeter.fX, fCurrentPixelsPerMeter.fY / fCurrentUnitsPerMeter.fY); matrix->postScale(ppuScale->fX, ppuScale->fY); const SkIRect& irect = clip; SkRect clipRect = SkRect::MakeLTRB(SkIntToScalar(irect.fLeft) * ppuScale->fX, SkIntToScalar(irect.fTop) * ppuScale->fY, SkIntToScalar(irect.fRight) * ppuScale->fX, SkIntToScalar(irect.fBottom) * ppuScale->fY); clipRect.roundOut(clipIRect); } HRESULT SkXPSDevice::applyMask(const SkMask& mask, const SkVector& ppuScale, IXpsOMPath* shadedPath) { //Get the geometry object. SkTScopedComPtr shadedGeometry; HRM(shadedPath->GetGeometry(&shadedGeometry), "Could not get mask shaded geometry."); //Get the figures from the geometry. SkTScopedComPtr shadedFigures; HRM(shadedGeometry->GetFigures(&shadedFigures), "Could not get mask shaded figures."); SkMatrix m; m.reset(); m.setTranslate(SkIntToScalar(mask.fBounds.fLeft), SkIntToScalar(mask.fBounds.fTop)); m.postScale(SkScalarInvert(ppuScale.fX), SkScalarInvert(ppuScale.fY)); SkShader::TileMode xy[2]; xy[0] = (SkShader::TileMode)3; xy[1] = (SkShader::TileMode)3; SkBitmap bm; bm.installMaskPixels(mask); SkTScopedComPtr maskBrush; HR(this->createXpsImageBrush(bm, m, xy, 0xFF, &maskBrush)); HRM(shadedPath->SetOpacityMaskBrushLocal(maskBrush.get()), "Could not set mask."); const SkRect universeRect = SkRect::MakeLTRB(0, 0, this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight); SkTScopedComPtr shadedFigure; HRM(this->createXpsRect(universeRect, FALSE, TRUE, &shadedFigure), "Could not create mask shaded figure."); HRM(shadedFigures->Append(shadedFigure.get()), "Could not add mask shaded figure."); HR(this->clip(shadedPath)); //Add the path to the active visual collection. SkTScopedComPtr currentVisuals; HRM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals), "Could not get mask current visuals."); HRM(currentVisuals->Append(shadedPath), "Could not add masked shaded path to current visuals."); return S_OK; } HRESULT SkXPSDevice::shadePath(IXpsOMPath* shadedPath, const SkPaint& shaderPaint, const SkMatrix& matrix, BOOL* fill, BOOL* stroke) { *fill = FALSE; *stroke = FALSE; const SkPaint::Style style = shaderPaint.getStyle(); const bool hasFill = SkPaint::kFill_Style == style || SkPaint::kStrokeAndFill_Style == style; const bool hasStroke = SkPaint::kStroke_Style == style || SkPaint::kStrokeAndFill_Style == style; //TODO(bungeman): use dictionaries and lookups. if (hasFill) { *fill = TRUE; SkTScopedComPtr fillBrush; HR(this->createXpsBrush(shaderPaint, &fillBrush, &matrix)); HRM(shadedPath->SetFillBrushLocal(fillBrush.get()), "Could not set fill for shaded path."); } if (hasStroke) { *stroke = TRUE; SkTScopedComPtr strokeBrush; HR(this->createXpsBrush(shaderPaint, &strokeBrush, &matrix)); HRM(shadedPath->SetStrokeBrushLocal(strokeBrush.get()), "Could not set stroke brush for shaded path."); HRM(shadedPath->SetStrokeThickness( SkScalarToFLOAT(shaderPaint.getStrokeWidth())), "Could not set shaded path stroke thickness."); if (0 == shaderPaint.getStrokeWidth()) { //XPS hair width is a hack. (XPS Spec 11.6.12). SkTScopedComPtr dashes; HRM(shadedPath->GetStrokeDashes(&dashes), "Could not set dashes for shaded path."); XPS_DASH dash; dash.length = 1.0; dash.gap = 0.0; HRM(dashes->Append(&dash), "Could not add dashes to shaded path."); HRM(shadedPath->SetStrokeDashOffset(-2.0), "Could not set dash offset for shaded path."); } } return S_OK; } void SkXPSDevice::drawPath(const SkPath& platonicPath, const SkPaint& origPaint, bool pathIsMutable) { SkTCopyOnFirstWrite paint(origPaint); // nothing to draw if (this->cs().isEmpty(size(*this)) || (paint->getAlpha() == 0 && paint->isSrcOver())) { return; } SkPath modifiedPath; const bool paintHasPathEffect = paint->getPathEffect() || paint->getStyle() != SkPaint::kFill_Style; //Apply pre-path matrix [Platonic-path -> Skeletal-path]. SkMatrix matrix = this->ctm(); SkPath* skeletalPath = const_cast(&platonicPath); //Apply path effect [Skeletal-path -> Fillable-path]. SkPath* fillablePath = skeletalPath; if (paintHasPathEffect) { if (!pathIsMutable) { fillablePath = &modifiedPath; pathIsMutable = true; } bool fill = paint->getFillPath(*skeletalPath, fillablePath); SkPaint* writablePaint = paint.writable(); writablePaint->setPathEffect(nullptr); if (fill) { writablePaint->setStyle(SkPaint::kFill_Style); } else { writablePaint->setStyle(SkPaint::kStroke_Style); writablePaint->setStrokeWidth(0); } } //Create the shaded path. This will be the path which is painted. SkTScopedComPtr shadedPath; HRVM(this->fXpsFactory->CreatePath(&shadedPath), "Could not create shaded path for path."); //Create the geometry for the shaded path. SkTScopedComPtr shadedGeometry; HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry), "Could not create shaded geometry for path."); //Add the geometry to the shaded path. HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()), "Could not add the shaded geometry to shaded path."); SkMaskFilter* filter = paint->getMaskFilter(); //Determine if we will draw or shade and mask. if (filter) { if (paint->getStyle() != SkPaint::kFill_Style) { paint.writable()->setStyle(SkPaint::kFill_Style); } } //Set the brushes. BOOL fill; BOOL stroke; HRV(this->shadePath(shadedPath.get(), *paint, this->ctm(), &fill, &stroke)); //Mask filter if (filter) { SkIRect clipIRect; SkVector ppuScale; this->convertToPpm(filter, &matrix, &ppuScale, this->cs().bounds(size(*this)).roundOut(), &clipIRect); //[Fillable-path -> Pixel-path] SkPath* pixelPath = pathIsMutable ? fillablePath : &modifiedPath; fillablePath->transform(matrix, pixelPath); SkMask* mask = nullptr; SkASSERT(SkPaint::kFill_Style == paint->getStyle() || (SkPaint::kStroke_Style == paint->getStyle() && 0 == paint->getStrokeWidth())); SkStrokeRec::InitStyle style = (SkPaint::kFill_Style == paint->getStyle()) ? SkStrokeRec::kFill_InitStyle : SkStrokeRec::kHairline_InitStyle; //[Pixel-path -> Mask] SkMask rasteredMask; if (SkDraw::DrawToMask( *pixelPath, &clipIRect, filter, //just to compute how much to draw. &matrix, &rasteredMask, SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) { SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage); mask = &rasteredMask; //[Mask -> Mask] SkMask filteredMask; if (as_MFB(filter)->filterMask(&filteredMask, rasteredMask, matrix, nullptr)) { mask = &filteredMask; } SkAutoMaskFreeImage filteredAmi(filteredMask.fImage); //Draw mask. HRV(this->applyMask(*mask, ppuScale, shadedPath.get())); } return; } //Get the figures from the shaded geometry. SkTScopedComPtr shadedFigures; HRVM(shadedGeometry->GetFigures(&shadedFigures), "Could not get shaded figures for shaded path."); bool xpsTransformsPath = true; //Set the fill rule. SkPath* xpsCompatiblePath = fillablePath; XPS_FILL_RULE xpsFillRule; switch (fillablePath->getFillType()) { case SkPath::kWinding_FillType: xpsFillRule = XPS_FILL_RULE_NONZERO; break; case SkPath::kEvenOdd_FillType: xpsFillRule = XPS_FILL_RULE_EVENODD; break; case SkPath::kInverseWinding_FillType: { //[Fillable-path (inverse winding) -> XPS-path (inverse even odd)] if (!pathIsMutable) { xpsCompatiblePath = &modifiedPath; pathIsMutable = true; } if (!Simplify(*fillablePath, xpsCompatiblePath)) { SkDEBUGF("Could not simplify inverse winding path."); return; } } // The xpsCompatiblePath is noW inverse even odd, so fall through. case SkPath::kInverseEvenOdd_FillType: { const SkRect universe = SkRect::MakeLTRB( 0, 0, this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight); SkTScopedComPtr addOneFigure; HRV(this->createXpsRect(universe, FALSE, TRUE, &addOneFigure)); HRVM(shadedFigures->Append(addOneFigure.get()), "Could not add even-odd flip figure to shaded path."); xpsTransformsPath = false; xpsFillRule = XPS_FILL_RULE_EVENODD; break; } default: SkDEBUGFAIL("Unknown SkPath::FillType."); } HRVM(shadedGeometry->SetFillRule(xpsFillRule), "Could not set fill rule for shaded path."); //Create the XPS transform, if possible. if (xpsTransformsPath) { SkTScopedComPtr xpsTransform; HRV(this->createXpsTransform(matrix, &xpsTransform)); if (xpsTransform.get()) { HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()), "Could not set transform on shaded path."); } else { xpsTransformsPath = false; } } SkPath* devicePath = xpsCompatiblePath; if (!xpsTransformsPath) { //[Fillable-path -> Device-path] devicePath = pathIsMutable ? xpsCompatiblePath : &modifiedPath; xpsCompatiblePath->transform(matrix, devicePath); } HRV(this->addXpsPathGeometry(shadedFigures.get(), stroke, fill, *devicePath)); HRV(this->clip(shadedPath.get())); //Add the path to the active visual collection. SkTScopedComPtr currentVisuals; HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals), "Could not get current visuals for shaded path."); HRVM(currentVisuals->Append(shadedPath.get()), "Could not add shaded path to current visuals."); } HRESULT SkXPSDevice::clip(IXpsOMVisual* xpsVisual) { SkPath clipPath; // clipPath.addRect(this->cs().bounds(size(*this))); (void)this->cs().asPath(&clipPath); return this->clipToPath(xpsVisual, clipPath, XPS_FILL_RULE_EVENODD); } HRESULT SkXPSDevice::clipToPath(IXpsOMVisual* xpsVisual, const SkPath& clipPath, XPS_FILL_RULE fillRule) { //Create the geometry. SkTScopedComPtr clipGeometry; HRM(this->fXpsFactory->CreateGeometry(&clipGeometry), "Could not create clip geometry."); //Get the figure collection of the geometry. SkTScopedComPtr clipFigures; HRM(clipGeometry->GetFigures(&clipFigures), "Could not get the clip figures."); //Create the figures into the geometry. HR(this->addXpsPathGeometry( clipFigures.get(), FALSE, TRUE, clipPath)); HRM(clipGeometry->SetFillRule(fillRule), "Could not set fill rule."); HRM(xpsVisual->SetClipGeometryLocal(clipGeometry.get()), "Could not set clip geometry."); return S_OK; } void SkXPSDevice::drawSprite(const SkBitmap& bitmap, int x, int y, const SkPaint& paint) { //TODO: override this for XPS SkDEBUGF("XPS drawSprite not yet implemented."); } #if 0 HRESULT SkXPSDevice::CreateTypefaceUse(const SkPaint& paint, TypefaceUse** typefaceUse) { SkAutoResolveDefaultTypeface typeface(paint.getTypeface()); //Check cache. const SkFontID typefaceID = typeface->uniqueID(); if (!this->fTypefaces.empty()) { TypefaceUse* current = &this->fTypefaces.front(); const TypefaceUse* last = &this->fTypefaces.back(); for (; current <= last; ++current) { if (current->typefaceId == typefaceID) { *typefaceUse = current; return S_OK; } } } //TODO: create glyph only fonts //and let the host deal with what kind of font we're looking at. XPS_FONT_EMBEDDING embedding = XPS_FONT_EMBEDDING_RESTRICTED; SkTScopedComPtr fontStream; int ttcIndex; std::unique_ptr fontData = typeface->openStream(&ttcIndex); //TODO: cannot handle FON fonts. HRM(SkIStream::CreateFromSkStream(fontData.release(), true, &fontStream), "Could not create font stream."); const size_t size = SK_ARRAY_COUNT(L"/Resources/Fonts/" L_GUID_ID L".odttf"); wchar_t buffer[size]; wchar_t id[GUID_ID_LEN]; HR(this->createId(id, GUID_ID_LEN)); swprintf_s(buffer, size, L"/Resources/Fonts/%s.odttf", id); SkTScopedComPtr partUri; HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri), "Could not create font resource part uri."); SkTScopedComPtr xpsFontResource; HRM(this->fXpsFactory->CreateFontResource(fontStream.get(), embedding, partUri.get(), FALSE, &xpsFontResource), "Could not create font resource."); //TODO: change openStream to return -1 for non-ttc, get rid of this. uint8_t* data = (uint8_t*)fontData->getMemoryBase(); bool isTTC = (data && fontData->getLength() >= sizeof(SkTTCFHeader) && ((SkTTCFHeader*)data)->ttcTag == SkTTCFHeader::TAG); TypefaceUse& newTypefaceUse = this->fTypefaces.push_back(); newTypefaceUse.typefaceId = typefaceID; newTypefaceUse.ttcIndex = isTTC ? ttcIndex : -1; newTypefaceUse.fontData = fontData; newTypefaceUse.xpsFont = xpsFontResource.release(); auto glyphCache = SkStrikeCache::FindOrCreateStrikeExclusive( paint, this->surfaceProps(), SkScalerContextFlags::kNone, SkMatrix::I()); unsigned int glyphCount = glyphCache->getGlyphCount(); newTypefaceUse.glyphsUsed = new SkBitSet(glyphCount); *typefaceUse = &newTypefaceUse; return S_OK; } HRESULT SkXPSDevice::AddGlyphs(IXpsOMObjectFactory* xpsFactory, IXpsOMCanvas* canvas, TypefaceUse* font, LPCWSTR text, XPS_GLYPH_INDEX* xpsGlyphs, UINT32 xpsGlyphsLen, XPS_POINT *origin, FLOAT fontSize, XPS_STYLE_SIMULATION sims, const SkMatrix& transform, const SkPaint& paint) { SkTScopedComPtr glyphs; HRM(xpsFactory->CreateGlyphs(font->xpsFont, &glyphs), "Could not create glyphs."); HRM(glyphs->SetFontFaceIndex(font->ttcIndex), "Could not set glyph font face index."); //XPS uses affine transformations for everything... //...except positioning text. bool useCanvasForClip; if ((transform.getType() & ~SkMatrix::kTranslate_Mask) == 0) { origin->x += SkScalarToFLOAT(transform.getTranslateX()); origin->y += SkScalarToFLOAT(transform.getTranslateY()); useCanvasForClip = false; } else { SkTScopedComPtr xpsMatrixToUse; HR(this->createXpsTransform(transform, &xpsMatrixToUse)); if (xpsMatrixToUse.get()) { HRM(glyphs->SetTransformLocal(xpsMatrixToUse.get()), "Could not set transform matrix."); useCanvasForClip = true; } else { SkDEBUGFAIL("Attempt to add glyphs in perspective."); useCanvasForClip = false; } } SkTScopedComPtr glyphsEditor; HRM(glyphs->GetGlyphsEditor(&glyphsEditor), "Could not get glyph editor."); if (text) { HRM(glyphsEditor->SetUnicodeString(text), "Could not set unicode string."); } if (xpsGlyphs) { HRM(glyphsEditor->SetGlyphIndices(xpsGlyphsLen, xpsGlyphs), "Could not set glyphs."); } HRM(glyphsEditor->ApplyEdits(), "Could not apply glyph edits."); SkTScopedComPtr xpsFillBrush; HR(this->createXpsBrush( paint, &xpsFillBrush, useCanvasForClip ? nullptr : &transform)); HRM(glyphs->SetFillBrushLocal(xpsFillBrush.get()), "Could not set fill brush."); HRM(glyphs->SetOrigin(origin), "Could not set glyph origin."); HRM(glyphs->SetFontRenderingEmSize(fontSize), "Could not set font size."); HRM(glyphs->SetStyleSimulations(sims), "Could not set style simulations."); SkTScopedComPtr visuals; HRM(canvas->GetVisuals(&visuals), "Could not get glyph canvas visuals."); if (!useCanvasForClip) { HR(this->clip(glyphs.get())); HRM(visuals->Append(glyphs.get()), "Could not add glyphs to canvas."); } else { SkTScopedComPtr glyphCanvas; HRM(this->fXpsFactory->CreateCanvas(&glyphCanvas), "Could not create glyph canvas."); SkTScopedComPtr glyphCanvasVisuals; HRM(glyphCanvas->GetVisuals(&glyphCanvasVisuals), "Could not get glyph visuals collection."); HRM(glyphCanvasVisuals->Append(glyphs.get()), "Could not add glyphs to page."); HR(this->clip(glyphCanvas.get())); HRM(visuals->Append(glyphCanvas.get()), "Could not add glyph canvas to page."); } return S_OK; } static int num_glyph_guess(SkTextEncoding encoding, const void* text, size_t byteLength) { static_assert((int)SkTypeface::kUTF8_Encoding == (int)kUTF8_SkTextEncoding, ""); static_assert((int)SkTypeface::kUTF16_Encoding == (int)kUTF16_SkTextEncoding, ""); static_assert((int)SkTypeface::kUTF32_Encoding == (int)kUTF32_SkTextEncoding, ""); if (encoding == kGlyphID_SkTextEncoding) { return SkToInt(byteLength / 2); } return SkUTFN_CountUnichars((SkTypeface::Encoding)encoding, text, byteLength); } static bool text_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) { const SkPaint::Style style = paint.getStyle(); return matrix.hasPerspective() || SkPaint::kStroke_Style == style || SkPaint::kStrokeAndFill_Style == style || paint.getMaskFilter() ; } typedef SkTDArray GlyphRun; class ProcessOneGlyph { public: ProcessOneGlyph(FLOAT centemPerUnit, SkBitSet* glyphUse, GlyphRun* xpsGlyphs) : fCentemPerUnit(centemPerUnit) , fGlyphUse(glyphUse) , fXpsGlyphs(xpsGlyphs) { } void operator()(const SkGlyph& glyph, SkPoint position, SkPoint) { SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); SkScalar x = position.fX; SkScalar y = position.fY; XPS_GLYPH_INDEX* xpsGlyph = fXpsGlyphs->append(); uint16_t glyphID = glyph.getGlyphID(); fGlyphUse->set(glyphID); xpsGlyph->index = glyphID; if (1 == fXpsGlyphs->count()) { xpsGlyph->advanceWidth = 0.0f; xpsGlyph->horizontalOffset = SkScalarToFloat(x) * fCentemPerUnit; xpsGlyph->verticalOffset = SkScalarToFloat(y) * -fCentemPerUnit; } else { const XPS_GLYPH_INDEX& first = (*fXpsGlyphs)[0]; xpsGlyph->advanceWidth = 0.0f; xpsGlyph->horizontalOffset = (SkScalarToFloat(x) * fCentemPerUnit) - first.horizontalOffset; xpsGlyph->verticalOffset = (SkScalarToFloat(y) * -fCentemPerUnit) - first.verticalOffset; } } private: /** [in] Advance width and offsets for glyphs measured in hundredths of the font em size (XPS Spec 5.1.3). */ const FLOAT fCentemPerUnit; /** [in,out] The accumulated glyphs used in the current typeface. */ SkBitSet* const fGlyphUse; /** [out] The glyphs to draw. */ GlyphRun* const fXpsGlyphs; }; void SkXPSDevice::drawPosText(const void* text, size_t byteLen, const SkScalar pos[], int scalarsPerPos, const SkPoint& offset, const SkPaint& paint) { if (byteLen < 1) return; if (text_must_be_pathed(paint, this->ctm())) { SkPath path; //TODO: make this work, Draw currently does not handle as well. //paint.getTextPath(text, byteLength, x, y, &path); //this->drawPath(path, paint, nullptr, true); //TODO: add automation "text" return; } TypefaceUse* typeface; HRV(CreateTypefaceUse(paint, &typeface)); auto cache = SkStrikeCache::FindOrCreateStrikeExclusive( paint, this->surfaceProps(), SkScalerContextFlags::kNone, SkMatrix::I()); // Advance width and offsets for glyphs measured in hundredths of the font em size // (XPS Spec 5.1.3). FLOAT centemPerUnit = 100.0f / SkScalarToFLOAT(paint.getTextSize()); GlyphRun xpsGlyphs; xpsGlyphs.setReserve(num_glyph_guess(paint.getTextEncoding(), static_cast(text), byteLen)); ProcessOneGlyph processOneGlyph(centemPerUnit, typeface->glyphsUsed, &xpsGlyphs); SkFindAndPlaceGlyph::ProcessPosText( paint.getTextEncoding(), static_cast(text), byteLen, offset, SkMatrix::I(), pos, scalarsPerPos, cache.get(), processOneGlyph); if (xpsGlyphs.count() == 0) { return; } XPS_POINT origin = { xpsGlyphs[0].horizontalOffset / centemPerUnit, xpsGlyphs[0].verticalOffset / -centemPerUnit, }; xpsGlyphs[0].horizontalOffset = 0.0f; xpsGlyphs[0].verticalOffset = 0.0f; HRV(AddGlyphs(this->fXpsFactory.get(), this->fCurrentXpsCanvas.get(), typeface, nullptr, xpsGlyphs.begin(), xpsGlyphs.count(), &origin, SkScalarToFLOAT(paint.getTextSize()), XPS_STYLE_SIMULATION_NONE, this->ctm(), paint)); } #endif void SkXPSDevice::drawDevice( SkBaseDevice* dev, int x, int y, const SkPaint&) { SkXPSDevice* that = static_cast(dev); SkTScopedComPtr xpsTransform; // TODO(halcanary): assert that current transform is identity rather than calling setter. XPS_MATRIX rawTransform = {1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f}; HRVM(this->fXpsFactory->CreateMatrixTransform(&rawTransform, &xpsTransform), "Could not create layer transform."); HRVM(that->fCurrentXpsCanvas->SetTransformLocal(xpsTransform.get()), "Could not set layer transform."); //Get the current visual collection and add the layer to it. SkTScopedComPtr currentVisuals; HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals), "Could not get current visuals for layer."); HRVM(currentVisuals->Append(that->fCurrentXpsCanvas.get()), "Could not add layer to current visuals."); } SkBaseDevice* SkXPSDevice::onCreateDevice(const CreateInfo& info, const SkPaint*) { //Conditional for bug compatibility with PDF device. #if 0 if (SkBaseDevice::kGeneral_Usage == info.fUsage) { return nullptr; //To what stream do we write? //SkXPSDevice* dev = new SkXPSDevice(this); //SkSize s = SkSize::Make(width, height); //dev->BeginCanvas(s, s, SkMatrix::I()); //return dev; } #endif SkXPSDevice* dev = new SkXPSDevice(info.fInfo.dimensions()); // TODO(halcanary) implement copy constructor on SkTScopedCOmPtr dev->fXpsFactory.reset(SkRefComPtr(fXpsFactory.get())); SkAssertResult(dev->createCanvasForLayer()); return dev; } void SkXPSDevice::drawOval( const SkRect& o, const SkPaint& p) { SkPath path; path.addOval(o); this->drawPath(path, p, true); } void SkXPSDevice::drawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, const SkPaint& paint, SkCanvas::SrcRectConstraint constraint) { SkRect bitmapBounds = SkRect::Make(bitmap.bounds()); SkRect srcBounds = src ? *src : bitmapBounds; SkMatrix matrix = SkMatrix::MakeRectToRect(srcBounds, dst, SkMatrix::kFill_ScaleToFit); SkRect actualDst; if (!src || bitmapBounds.contains(*src)) { actualDst = dst; } else { if (!srcBounds.intersect(bitmapBounds)) { return; } matrix.mapRect(&actualDst, srcBounds); } auto bitmapShader = SkMakeBitmapShader(bitmap, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &matrix, kNever_SkCopyPixelsMode); SkASSERT(bitmapShader); if (!bitmapShader) { return; } SkPaint paintWithShader(paint); paintWithShader.setStyle(SkPaint::kFill_Style); paintWithShader.setShader(std::move(bitmapShader)); this->drawRect(actualDst, paintWithShader); } #endif//defined(SK_BUILD_FOR_WIN)