/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef UNICODE #define UNICODE #endif #ifndef _UNICODE #define _UNICODE #endif #include "SkTypes.h" #include #include #include #include #include "SkColor.h" #include "SkConstexprMath.h" #include "SkData.h" #include "SkDraw.h" #include "SkDrawProcs.h" #include "SkFontHost.h" #include "SkGlyphCache.h" #include "SkHRESULT.h" #include "SkImageEncoder.h" #include "SkIStream.h" #include "SkMaskFilter.h" #include "SkPaint.h" #include "SkPoint.h" #include "SkRasterizer.h" #include "SkShader.h" #include "SkSize.h" #include "SkStream.h" #include "SkTDArray.h" #include "SkTLazy.h" #include "SkTScopedComPtr.h" #include "SkUtils.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 create_id. #define L_GUID_ID L"XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX" //Length of GUID representation from create_id, including NULL 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]); } /** Creates a GUID based id 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 The string may begin with a digit, and so may not be suitable as a bare resource key. */ static HRESULT create_id(wchar_t* buffer, size_t bufferSize, wchar_t sep = '-') { GUID guid = {}; HRM(CoCreateGuid(&guid), "Could not create GUID for id."); if (format_guid(guid, buffer, bufferSize, sep) == -1) { HRM(E_UNEXPECTED, "Could not format GUID into id."); } return S_OK; } static SkBitmap make_fake_bitmap(int width, int height) { SkBitmap bitmap; bitmap.setConfig(SkBitmap::kNo_Config, width, height); return bitmap; } SkXPSDevice::SkXPSDevice() : SkDevice(make_fake_bitmap(10000, 10000)) , fCurrentPage(0) { } SkXPSDevice::~SkXPSDevice() { } SkXPSDevice::TypefaceUse::TypefaceUse() : typefaceId(0xffffffff) , fontData(NULL) , xpsFont(NULL) , glyphsUsed(NULL) { } SkXPSDevice::TypefaceUse::~TypefaceUse() { //xpsFont owns fontData ref this->xpsFont->Release(); delete this->glyphsUsed; } bool SkXPSDevice::beginPortfolio(SkWStream* outputStream) { if (!this->fAutoCo.succeeded()) return false; //Create XPS Factory. HRBM(CoCreateInstance( CLSID_XpsOMObjectFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&this->fXpsFactory)), "Could not create XPS factory."); HRBM(SkWIStream::CreateFromSkWStream(outputStream, &this->fOutputStream), "Could not convert SkStream to IStream."); 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; this->fCurrentXpsCanvas.reset(); HRBM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas), "Could not create base canvas."); return true; } HRESULT SkXPSDevice::createXpsThumbnail(IXpsOMPage* page, const unsigned int pageNum, IXpsOMImageResource** image) { SkTScopedComPtr thumbnailGenerator; HRM(CoCreateInstance( CLSID_XpsOMThumbnailGenerator, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&thumbnailGenerator)), "Could not create thumbnail generator."); SkTScopedComPtr partUri; static const size_t size = SK_MAX( SK_ARRAY_COUNT(L"/Documents/1/Metadata/.png") + SK_DIGITS_IN(pageNum), 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(create_id(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) { static const size_t size = SK_ARRAY_COUNT(L"/Documents/1/Pages/.fpage") + SK_DIGITS_IN(fCurrentPage); 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(), NULL, image, NULL, NULL, &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(), NULL, NULL, NULL, NULL), "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 (NULL == 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, NULL, NULL, NULL, NULL), "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? SkTDArray keepList; current->glyphsUsed->exportTo(&keepList); //The following are declared with the types required by CreateFontPackage. unsigned char *puchFontPackageBuffer; unsigned long pulFontPackageBufferSize; unsigned long pulBytesWritten; unsigned long result = CreateFontPackage( (unsigned char *) current->fontData->getMemoryBase(), (unsigned long) current->fontData->getLength(), &puchFontPackageBuffer, &pulFontPackageBufferSize, &pulBytesWritten, TTFCFP_FLAGS_SUBSET | TTFCFP_FLAGS_GLYPHLIST,// | TTFCFP_FLAGS_TTC, 0,//TTC index TTFCFP_SUBSET, 0, 0, 0, keepList.begin(), keepList.count(), sk_malloc_throw, sk_realloc_throw, sk_free, NULL); if (result != NO_ERROR) { SkDEBUGF(("CreateFontPackage Error %lu", result)); return E_UNEXPECTED; } SkMemoryStream* newStream = new SkMemoryStream; newStream->setMemoryOwned(puchFontPackageBuffer, pulBytesWritten); SkTScopedComPtr newIStream; SkIStream::CreateFromSkStream(newStream, 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: SkASSERT(!"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 = SkScalarMul(end.fX - start.fX, stopOffsets[i]); stop.fY = SkScalarMul(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] = SkScalarDiv(startToStop, startToEnd); } } HRESULT SkXPSDevice::createXpsTransform(const SkMatrix& matrix, IXpsOMMatrixTransform** xpsTransform) { SkScalar affine[6]; if (!matrix.asAffine(affine)) { *xpsTransform = NULL; 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, NULL, &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 (!SkImageEncoder::EncodeStream(&write, bitmap, SkImageEncoder::kPNG_Type, 100)) { HRM(E_FAIL, "Unable to encode bitmap as png."); } SkMemoryStream* read = new SkMemoryStream; read->setData(write.copyToData())->unref(); 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(create_id(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]) { SkAutoLockPixels alp(bitmap); 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 (NULL != 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, NULL, 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 (NULL != 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 (NULL != 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 (NULL != 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 (NULL != 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 (NULL == shader) { HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush)); return S_OK; } //Gradient shaders. SkShader::GradientInfo info; info.fColorCount = 0; info.fColors = NULL; info.fColorOffsets = NULL; 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; SkShader::GradientType gradientType = 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(&localMatrix); if (NULL != 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::kRadial2_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]; SkScalar twoPointRadialParams[3]; SkShader::BitmapType bitmapType = shader->asABitmap(&outTexture, &outMatrix, xy, twoPointRadialParams); switch (bitmapType) { case SkShader::kNone_BitmapType: break; case SkShader::kDefault_BitmapType: { //TODO: outMatrix?? SkMatrix localMatrix; shader->getLocalMatrix(&localMatrix); if (NULL != parentTransform) { localMatrix.preConcat(*parentTransform); } SkTScopedComPtr tileBrush; HR(this->createXpsImageBrush(outTexture, localMatrix, xy, skPaint.getAlpha(), &tileBrush)); HRM(tileBrush->QueryInterface(brush), "QI failed."); return S_OK; } case SkShader::kRadial_BitmapType: case SkShader::kSweep_BitmapType: case SkShader::kTwoPointRadial_BitmapType: default: break; } 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() || paint.getRasterizer() || (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; } uint32_t SkXPSDevice::getDeviceCapabilities() { return kVector_Capability; } void SkXPSDevice::clear(SkColor color) { //TODO: override this for XPS SkDEBUGF(("XPS clear not yet implemented.")); } void SkXPSDevice::drawPoints(const SkDraw& d, SkCanvas::PointMode mode, size_t count, const SkPoint points[], const SkPaint& paint) { //This will call back into the device to do the drawing. d.drawPoints(mode, count, points, paint, true); } void SkXPSDevice::drawVertices(const SkDraw&, SkCanvas::VertexMode, int vertexCount, const SkPoint verts[], const SkPoint texs[], const SkColor colors[], SkXfermode* xmode, const uint16_t indices[], int indexCount, const SkPaint& paint) { //TODO: override this for XPS SkDEBUGF(("XPS drawVertices not yet implemented.")); } void SkXPSDevice::drawPaint(const SkDraw& d, const SkPaint& paint) { const SkRect r = SkRect::MakeSize(this->fCurrentCanvasSize); //If trying to paint with a stroke, ignore that and fill. SkPaint* fillPaint = const_cast(&paint); SkTLazy modifiedPaint; if (paint.getStyle() != SkPaint::kFill_Style) { fillPaint = modifiedPaint.set(paint); fillPaint->setStyle(SkPaint::kFill_Style); } this->internalDrawRect(d, r, false, *fillPaint); } void SkXPSDevice::drawRect(const SkDraw& d, const SkRect& r, const SkPaint& paint) { this->internalDrawRect(d, r, true, paint); } void SkXPSDevice::internalDrawRect(const SkDraw& d, const SkRect& r, bool transformRect, const SkPaint& paint) { //Exit early if there is nothing to draw. if (d.fClip->isEmpty() || (paint.getAlpha() == 0 && paint.getXfermode() == NULL)) { return; } //Path the rect if we can't optimize it. if (rect_must_be_pathed(paint, *d.fMatrix)) { SkPath tmp; tmp.addRect(r); tmp.setFillType(SkPath::kWinding_FillType); this->drawPath(d, tmp, paint, NULL, 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, *d.fMatrix, &fill, &stroke)); bool xpsTransformsPath = true; //Transform the geometry. if (transformRect && xpsTransformsPath) { SkTScopedComPtr xpsTransform; HRV(this->createXpsTransform(*d.fMatrix, &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) { d.fMatrix->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(), d)); //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 (NULL != 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(XPS_SEGMENT_TYPE_LINE); segmentStrokes.push(stroke); segmentData.push(SkScalarToFLOAT(points[1].fX)); segmentData.push(SkScalarToFLOAT(points[1].fY)); break; case SkPath::kQuad_Verb: segmentTypes.push(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER); segmentStrokes.push(stroke); segmentData.push(SkScalarToFLOAT(points[1].fX)); segmentData.push(SkScalarToFLOAT(points[1].fY)); segmentData.push(SkScalarToFLOAT(points[2].fX)); segmentData.push(SkScalarToFLOAT(points[2].fY)); break; case SkPath::kCubic_Verb: segmentTypes.push(XPS_SEGMENT_TYPE_BEZIER); segmentStrokes.push(stroke); segmentData.push(SkScalarToFLOAT(points[1].fX)); segmentData.push(SkScalarToFLOAT(points[1].fY)); segmentData.push(SkScalarToFLOAT(points[2].fX)); segmentData.push(SkScalarToFLOAT(points[2].fY)); segmentData.push(SkScalarToFLOAT(points[3].fX)); segmentData.push(SkScalarToFLOAT(points[3].fY)); break; case SkPath::kClose_Verb: // we ignore these, and just get the whole segment from // the corresponding line/quad/cubic verbs break; default: SkASSERT(!"unexpected verb"); break; } } if (NULL != xpsFigure.get()) { HR(close_figure(segmentTypes, segmentStrokes, segmentData, stroke, fill, xpsFigure.get(), xpsFigures)); } return S_OK; } HRESULT SkXPSDevice::drawInverseWindingPath(const SkDraw& d, const SkPath& devicePath, IXpsOMPath* shadedPath) { const SkRect universeRect = SkRect::MakeLTRB(0, 0, this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight); const XPS_RECT universeRectXps = { 0.0f, 0.0f, SkScalarToFLOAT(this->fCurrentCanvasSize.fWidth), SkScalarToFLOAT(this->fCurrentCanvasSize.fHeight), }; //Get the geometry. SkTScopedComPtr shadedGeometry; HRM(shadedPath->GetGeometry(&shadedGeometry), "Could not get shaded geometry for inverse path."); //Get the figures from the geometry. SkTScopedComPtr shadedFigures; HRM(shadedGeometry->GetFigures(&shadedFigures), "Could not get shaded figures for inverse path."); HRM(shadedGeometry->SetFillRule(XPS_FILL_RULE_NONZERO), "Could not set shaded fill rule for inverse path."); //Take everything drawn so far, and make a shared resource out of it. //Replace everything drawn so far with //inverse canvas // old canvas of everything so far // world shaded figure, clipped to current clip // top canvas of everything so far, clipped to path //Note: this is not quite right when there is nothing solid in the //canvas of everything so far, as the bit on top will allow //the world paint to show through. //Create new canvas. SkTScopedComPtr newCanvas; HRM(this->fXpsFactory->CreateCanvas(&newCanvas), "Could not create inverse canvas."); //Save the old canvas to a dictionary on the new canvas. SkTScopedComPtr newDictionary; HRM(this->fXpsFactory->CreateDictionary(&newDictionary), "Could not create inverse dictionary."); HRM(newCanvas->SetDictionaryLocal(newDictionary.get()), "Could not set inverse dictionary."); const size_t size = SK_ARRAY_COUNT(L"ID" L_GUID_ID); wchar_t buffer[size]; wchar_t id[GUID_ID_LEN]; HR(create_id(id, GUID_ID_LEN, '_')); swprintf_s(buffer, size, L"ID%s", id); HRM(newDictionary->Append(buffer, this->fCurrentXpsCanvas.get()), "Could not add canvas to inverse dictionary."); //Start drawing SkTScopedComPtr newVisuals; HRM(newCanvas->GetVisuals(&newVisuals), "Could not get inverse canvas visuals."); //Draw old canvas from dictionary onto new canvas. SkTScopedComPtr oldGeometry; HRM(this->fXpsFactory->CreateGeometry(&oldGeometry), "Could not create old inverse geometry."); SkTScopedComPtr oldFigures; HRM(oldGeometry->GetFigures(&oldFigures), "Could not get old inverse figures."); SkTScopedComPtr oldFigure; HR(this->createXpsRect(universeRect, FALSE, TRUE, &oldFigure)); HRM(oldFigures->Append(oldFigure.get()), "Could not add old inverse figure."); SkTScopedComPtr oldBrush; HRM(this->fXpsFactory->CreateVisualBrush(&universeRectXps, &universeRectXps, &oldBrush), "Could not create old inverse brush."); SkTScopedComPtr oldPath; HRM(this->fXpsFactory->CreatePath(&oldPath), "Could not create old inverse path."); HRM(oldPath->SetGeometryLocal(oldGeometry.get()), "Could not set old inverse geometry."); HRM(oldPath->SetFillBrushLocal(oldBrush.get()), "Could not set old inverse fill brush."); //the brush must be parented before setting the lookup. HRM(newVisuals->Append(oldPath.get()), "Could not add old inverse path to new canvas visuals."); HRM(oldBrush->SetVisualLookup(buffer), "Could not set old inverse brush visual lookup."); //Draw the clip filling shader. SkTScopedComPtr shadedFigure; HR(this->createXpsRect(universeRect, FALSE, TRUE, &shadedFigure)); HRM(shadedFigures->Append(shadedFigure.get()), "Could not add inverse shaded figure."); //the geometry is already set HR(this->clip(shadedPath, d)); HRM(newVisuals->Append(shadedPath), "Could not add inverse shaded path to canvas visuals."); //Draw the old canvas on top, clipped to the original path. SkTScopedComPtr topCanvas; HRM(this->fXpsFactory->CreateCanvas(&topCanvas), "Could not create top inverse canvas."); //Clip the canvas to prevent alpha spill. //This is the entire reason this canvas exists. HR(this->clip(topCanvas.get(), d)); SkTScopedComPtr topGeometry; HRM(this->fXpsFactory->CreateGeometry(&topGeometry), "Could not create top inverse geometry."); SkTScopedComPtr topFigures; HRM(topGeometry->GetFigures(&topFigures), "Could not get top inverse figures."); SkTScopedComPtr topFigure; HR(this->createXpsRect(universeRect, FALSE, TRUE, &topFigure)); HRM(topFigures->Append(topFigure.get()), "Could not add old inverse figure."); SkTScopedComPtr topBrush; HRM(this->fXpsFactory->CreateVisualBrush(&universeRectXps, &universeRectXps, &topBrush), "Could not create top inverse brush."); SkTScopedComPtr topPath; HRM(this->fXpsFactory->CreatePath(&topPath), "Could not create top inverse path."); HRM(topPath->SetGeometryLocal(topGeometry.get()), "Could not set top inverse geometry."); HRM(topPath->SetFillBrushLocal(topBrush.get()), "Could not set top inverse fill brush."); //the brush must be parented before setting the lookup. HRM(newVisuals->Append(topCanvas.get()), "Could not add top canvas to inverse canvas visuals."); SkTScopedComPtr topVisuals; HRM(topCanvas->GetVisuals(&topVisuals), "Could not get top inverse canvas visuals."); HRM(topVisuals->Append(topPath.get()), "Could not add top inverse path to top canvas visuals."); HRM(topBrush->SetVisualLookup(buffer), "Could not set top inverse brush visual lookup."); HR(this->clipToPath(topPath.get(), devicePath, XPS_FILL_RULE_NONZERO)); //swap current canvas to new canvas this->fCurrentXpsCanvas.swap(newCanvas); return S_OK; } void SkXPSDevice::convertToPpm(const SkMaskFilter* filter, SkMatrix* matrix, SkVector* ppuScale, const SkIRect& clip, SkIRect* clipIRect) { //TODO: currently ignoring the ppm if blur ignoring transform. if (filter) { SkMaskFilter::BlurInfo blurInfo; SkMaskFilter::BlurType blurType = filter->asABlur(&blurInfo); if (SkMaskFilter::kNone_BlurType != blurType && blurInfo.fIgnoreTransform) { ppuScale->fX = SK_Scalar1; ppuScale->fY = SK_Scalar1; *clipIRect = clip; return; } } //This action is in unit space, but the ppm is specified in physical space. ppuScale->fX = SkScalarDiv(this->fCurrentPixelsPerMeter.fX, this->fCurrentUnitsPerMeter.fX); ppuScale->fY = SkScalarDiv(this->fCurrentPixelsPerMeter.fY, this->fCurrentUnitsPerMeter.fY); matrix->postScale(ppuScale->fX, ppuScale->fY); const SkIRect& irect = clip; SkRect clipRect = SkRect::MakeLTRB( SkScalarMul(SkIntToScalar(irect.fLeft), ppuScale->fX), SkScalarMul(SkIntToScalar(irect.fTop), ppuScale->fY), SkScalarMul(SkIntToScalar(irect.fRight), ppuScale->fX), SkScalarMul(SkIntToScalar(irect.fBottom), ppuScale->fY)); clipRect.roundOut(clipIRect); } HRESULT SkXPSDevice::applyMask(const SkDraw& d, 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.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), mask.fBounds.height(), mask.fRowBytes); bm.setPixels(mask.fImage); 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, d)); //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 SkDraw& d, const SkPath& platonicPath, const SkPaint& paint, const SkMatrix* prePathMatrix, bool pathIsMutable) { // nothing to draw if (d.fClip->isEmpty() || (paint.getAlpha() == 0 && paint.getXfermode() == NULL)) { return; } SkPath modifiedPath; const bool paintHasPathEffect = paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style; //Apply pre-path matrix [Platonic-path -> Skeletal-path]. SkMatrix matrix = *d.fMatrix; SkPath* skeletalPath = const_cast(&platonicPath); if (prePathMatrix) { if (paintHasPathEffect || paint.getRasterizer()) { if (!pathIsMutable) { skeletalPath = &modifiedPath; pathIsMutable = true; } platonicPath.transform(*prePathMatrix, skeletalPath); } else { if (!matrix.preConcat(*prePathMatrix)) { return; } } } SkTLazy modifiedPaint; SkPaint* shaderPaint = const_cast(&paint); //Apply path effect [Skeletal-path -> Fillable-path]. SkPath* fillablePath = skeletalPath; if (paintHasPathEffect) { if (!pathIsMutable) { fillablePath = &modifiedPath; pathIsMutable = true; } bool fill = paint.getFillPath(*skeletalPath, fillablePath); shaderPaint = modifiedPaint.set(paint); shaderPaint->setPathEffect(NULL); if (fill) { shaderPaint->setStyle(SkPaint::kFill_Style); } else { shaderPaint->setStyle(SkPaint::kStroke_Style); shaderPaint->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."); //Set the brushes. BOOL fill; BOOL stroke; HRV(this->shadePath(shadedPath.get(), *shaderPaint, *d.fMatrix, &fill, &stroke)); SkMaskFilter* filter = paint.getMaskFilter(); //Rasterizer if (paint.getRasterizer()) { SkIRect clipIRect; SkVector ppuScale; this->convertToPpm(filter, &matrix, &ppuScale, d.fClip->getBounds(), &clipIRect); SkMask* mask = NULL; //[Fillable-path -> Mask] SkMask rasteredMask; if (paint.getRasterizer()->rasterize( *fillablePath, matrix, &clipIRect, filter, //just to compute how much to draw. &rasteredMask, SkMask::kComputeBoundsAndRenderImage_CreateMode)) { SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage); mask = &rasteredMask; //[Mask -> Mask] SkMask filteredMask; if (filter && filter->filterMask(&filteredMask, *mask, *d.fMatrix, NULL)) { mask = &filteredMask; } else { filteredMask.fImage = NULL; } SkAutoMaskFreeImage filteredAmi(filteredMask.fImage); //Draw mask. HRV(this->applyMask(d, *mask, ppuScale, shadedPath.get())); } return; } //Mask filter if (filter) { SkIRect clipIRect; SkVector ppuScale; this->convertToPpm(filter, &matrix, &ppuScale, d.fClip->getBounds(), &clipIRect); //[Fillable-path -> Pixel-path] SkPath* pixelPath = pathIsMutable ? fillablePath : &modifiedPath; fillablePath->transform(matrix, pixelPath); SkMask* mask = NULL; //[Pixel-path -> Mask] SkMask rasteredMask; if (SkDraw::DrawToMask( *pixelPath, &clipIRect, filter, //just to compute how much to draw. &matrix, &rasteredMask, SkMask::kComputeBoundsAndRenderImage_CreateMode)) { SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage); mask = &rasteredMask; //[Mask -> Mask] SkMask filteredMask; if (filter->filterMask(&filteredMask, rasteredMask, matrix, NULL)) { mask = &filteredMask; } else { filteredMask.fImage = NULL; } SkAutoMaskFreeImage filteredAmi(filteredMask.fImage); //Draw mask. HRV(this->applyMask(d, *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. XPS_FILL_RULE xpsFillRule; switch (platonicPath.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 -> Device-path] SkPath* devicePath = pathIsMutable ? fillablePath : &modifiedPath; fillablePath->transform(matrix, devicePath); HRV(this->drawInverseWindingPath(d, *devicePath, shadedPath.get())); return; } 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: SkASSERT(!"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 = fillablePath; if (!xpsTransformsPath) { //[Fillable-path -> Device-path] devicePath = pathIsMutable ? fillablePath : &modifiedPath; fillablePath->transform(matrix, devicePath); } HRV(this->addXpsPathGeometry(shadedFigures.get(), stroke, fill, *devicePath)); HRV(this->clip(shadedPath.get(), d)); //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, const SkDraw& d) { SkPath clipPath; SkAssertResult(d.fClip->getBoundaryPath(&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::drawBitmap(const SkDraw& d, const SkBitmap& bitmap, const SkIRect* srcRectOrNull, const SkMatrix& matrix, const SkPaint& paint) { if (d.fClip->isEmpty()) { return; } SkIRect srcRect; SkBitmap tmp; const SkBitmap* bitmapPtr = &bitmap; if (NULL == srcRectOrNull) { srcRect.set(0, 0, bitmap.width(), bitmap.height()); bitmapPtr = &bitmap; } else { srcRect = *srcRectOrNull; if (!bitmap.extractSubset(&tmp, srcRect)) { return; // extraction failed } bitmapPtr = &tmp; } //Create the new shaded path. SkTScopedComPtr shadedPath; HRVM(this->fXpsFactory->CreatePath(&shadedPath), "Could not create path for bitmap."); //Create the shaded geometry. SkTScopedComPtr shadedGeometry; HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry), "Could not create geometry for bitmap."); //Add the shaded geometry to the shaded path. HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()), "Could not set the geometry for bitmap."); //Get the shaded figures from the shaded geometry. SkTScopedComPtr shadedFigures; HRVM(shadedGeometry->GetFigures(&shadedFigures), "Could not get the figures for bitmap."); SkMatrix transform = matrix; transform.postConcat(*d.fMatrix); SkTScopedComPtr xpsTransform; HRV(this->createXpsTransform(transform, &xpsTransform)); if (xpsTransform.get()) { HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()), "Could not set transform for bitmap."); } else { //TODO: perspective that bitmap! } SkTScopedComPtr rectFigure; if (NULL != xpsTransform.get()) { const SkShader::TileMode xy[2] = { SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, }; SkTScopedComPtr xpsImageBrush; HRV(this->createXpsImageBrush(*bitmapPtr, transform, xy, paint.getAlpha(), &xpsImageBrush)); HRVM(shadedPath->SetFillBrushLocal(xpsImageBrush.get()), "Could not set bitmap brush."); const SkRect bitmapRect = SkRect::MakeLTRB(0, 0, SkIntToScalar(srcRect.width()), SkIntToScalar(srcRect.height())); HRV(this->createXpsRect(bitmapRect, FALSE, TRUE, &rectFigure)); } HRVM(shadedFigures->Append(rectFigure.get()), "Could not add bitmap figure."); //Get the current visual collection and add the shaded path to it. SkTScopedComPtr currentVisuals; HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals), "Could not get current visuals for bitmap"); HRVM(currentVisuals->Append(shadedPath.get()), "Could not add bitmap to current visuals."); HRV(this->clip(shadedPath.get(), d)); } void SkXPSDevice::drawSprite(const SkDraw&, const SkBitmap& bitmap, int x, int y, const SkPaint& paint) { //TODO: override this for XPS SkDEBUGF(("XPS drawSprite not yet implemented.")); } HRESULT SkXPSDevice::CreateTypefaceUse(const SkPaint& paint, TypefaceUse** typefaceUse) { const SkTypeface* typeface = paint.getTypeface(); //Check cache. const SkFontID typefaceID = SkTypeface::UniqueID(typeface); 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; SkStream* fontData = SkFontHost::OpenStream(typefaceID); HRM(SkIStream::CreateFromSkStream(fontData, 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(create_id(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."); TypefaceUse& newTypefaceUse = this->fTypefaces.push_back(); newTypefaceUse.typefaceId = typefaceID; newTypefaceUse.fontData = fontData; newTypefaceUse.xpsFont = xpsFontResource.release(); SkAutoGlyphCache agc = SkAutoGlyphCache(paint, &SkMatrix::I()); SkGlyphCache* glyphCache = agc.getCache(); unsigned int glyphCount = glyphCache->getGlyphCount(); newTypefaceUse.glyphsUsed = new SkBitSet(glyphCount); *typefaceUse = &newTypefaceUse; return S_OK; } HRESULT SkXPSDevice::AddGlyphs(const SkDraw& d, IXpsOMObjectFactory* xpsFactory, IXpsOMCanvas* canvas, IXpsOMFontResource* 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, &glyphs), "Could not create glyphs."); //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 { SkASSERT(!"Attempt to add glyphs in perspective."); useCanvasForClip = false; } } SkTScopedComPtr glyphsEditor; HRM(glyphs->GetGlyphsEditor(&glyphsEditor), "Could not get glyph editor."); if (NULL != text) { HRM(glyphsEditor->SetUnicodeString(text), "Could not set unicode string."); } if (NULL != 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 ? NULL : &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(), d)); 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(), d)); HRM(visuals->Append(glyphCanvas.get()), "Could not add glyph canvas to page."); } return S_OK; } struct SkXPSDrawProcs : public SkDrawProcs { public: /** [in] Advance width and offsets for glyphs measured in hundredths of the font em size (XPS Spec 5.1.3). */ FLOAT centemPerUnit; /** [in,out] The accumulated glyphs used in the current typeface. */ SkBitSet* glyphUse; /** [out] The glyphs to draw. */ SkTDArray xpsGlyphs; }; static void xps_draw_1_glyph(const SkDraw1Glyph& state, SkFixed x, SkFixed y, const SkGlyph& skGlyph) { SkASSERT(skGlyph.fWidth > 0 && skGlyph.fHeight > 0); SkXPSDrawProcs* procs = static_cast(state.fDraw->fProcs); //Draw pre-adds half the sampling frequency for floor rounding. if (state.fCache->isSubpixel()) { x -= (SK_FixedHalf >> SkGlyph::kSubBits); y -= (SK_FixedHalf >> SkGlyph::kSubBits); } else { x -= SK_FixedHalf; y -= SK_FixedHalf; } XPS_GLYPH_INDEX* xpsGlyph = procs->xpsGlyphs.append(); uint16_t glyphID = skGlyph.getGlyphID(); procs->glyphUse->setBit(glyphID, true); xpsGlyph->index = glyphID; if (1 == procs->xpsGlyphs.count()) { xpsGlyph->advanceWidth = 0.0f; xpsGlyph->horizontalOffset = SkFixedToFloat(x) * procs->centemPerUnit; xpsGlyph->verticalOffset = SkFixedToFloat(y) * -procs->centemPerUnit; } else { const XPS_GLYPH_INDEX& first = procs->xpsGlyphs[0]; xpsGlyph->advanceWidth = 0.0f; xpsGlyph->horizontalOffset = (SkFixedToFloat(x) * procs->centemPerUnit) - first.horizontalOffset; xpsGlyph->verticalOffset = (SkFixedToFloat(y) * -procs->centemPerUnit) - first.verticalOffset; } } static void text_draw_init(const SkPaint& paint, const void* text, size_t byteLength, SkBitSet& glyphsUsed, SkDraw& myDraw, SkXPSDrawProcs& procs) { procs.fD1GProc = xps_draw_1_glyph; int numGlyphGuess; switch (paint.getTextEncoding()) { case SkPaint::kUTF8_TextEncoding: numGlyphGuess = SkUTF8_CountUnichars( static_cast(text), byteLength); break; case SkPaint::kUTF16_TextEncoding: numGlyphGuess = SkUTF16_CountUnichars( static_cast(text), byteLength); break; case SkPaint::kGlyphID_TextEncoding: numGlyphGuess = byteLength / 2; break; default: SK_DEBUGBREAK(true); } procs.xpsGlyphs.setReserve(numGlyphGuess); procs.glyphUse = &glyphsUsed; procs.centemPerUnit = 100.0f / SkScalarToFLOAT(paint.getTextSize()); myDraw.fProcs = &procs; myDraw.fMVMatrix = &SkMatrix::I(); myDraw.fExtMatrix = &SkMatrix::I(); } 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() || paint.getRasterizer() ; } void SkXPSDevice::drawText(const SkDraw& d, const void* text, size_t byteLen, SkScalar x, SkScalar y, const SkPaint& paint) { if (byteLen < 1) return; if (text_must_be_pathed(paint, *d.fMatrix)) { SkPath path; paint.getTextPath(text, byteLen, x, y, &path); this->drawPath(d, path, paint, NULL, true); //TODO: add automation "text" return; } TypefaceUse* typeface; HRV(CreateTypefaceUse(paint, &typeface)); SkDraw myDraw(d); SkXPSDrawProcs procs; text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs); myDraw.drawText(static_cast(text), byteLen, x, y, paint); // SkDraw may have clipped out the glyphs, so we need to check if (procs.xpsGlyphs.count() == 0) { return; } XPS_POINT origin = { procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit, procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit, }; procs.xpsGlyphs[0].horizontalOffset = 0.0f; procs.xpsGlyphs[0].verticalOffset = 0.0f; HRV(AddGlyphs(d, this->fXpsFactory.get(), this->fCurrentXpsCanvas.get(), typeface->xpsFont, NULL, procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(), &origin, SkScalarToFLOAT(paint.getTextSize()), XPS_STYLE_SIMULATION_NONE, *d.fMatrix, paint)); } void SkXPSDevice::drawPosText(const SkDraw& d, const void* text, size_t byteLen, const SkScalar pos[], SkScalar constY, int scalarsPerPos, const SkPaint& paint) { if (byteLen < 1) return; if (text_must_be_pathed(paint, *d.fMatrix)) { SkPath path; //TODO: make this work, Draw currently does not handle as well. //paint.getTextPath(text, byteLength, x, y, &path); //this->drawPath(d, path, paint, NULL, true); //TODO: add automation "text" return; } TypefaceUse* typeface; HRV(CreateTypefaceUse(paint, &typeface)); SkDraw myDraw(d); SkXPSDrawProcs procs; text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs); myDraw.drawPosText(static_cast(text), byteLen, pos, constY, scalarsPerPos, paint); // SkDraw may have clipped out the glyphs, so we need to check if (procs.xpsGlyphs.count() == 0) { return; } XPS_POINT origin = { procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit, procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit, }; procs.xpsGlyphs[0].horizontalOffset = 0.0f; procs.xpsGlyphs[0].verticalOffset = 0.0f; HRV(AddGlyphs(d, this->fXpsFactory.get(), this->fCurrentXpsCanvas.get(), typeface->xpsFont, NULL, procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(), &origin, SkScalarToFLOAT(paint.getTextSize()), XPS_STYLE_SIMULATION_NONE, *d.fMatrix, paint)); } void SkXPSDevice::drawTextOnPath(const SkDraw& d, const void* text, size_t len, const SkPath& path, const SkMatrix* matrix, const SkPaint& paint) { //This will call back into the device to do the drawing. d.drawTextOnPath((const char*)text, len, path, matrix, paint); } void SkXPSDevice::drawDevice(const SkDraw& d, SkDevice* dev, int x, int y, const SkPaint&) { SkXPSDevice* that = static_cast(dev); SkTScopedComPtr xpsTransform; XPS_MATRIX rawTransform = { 1.0f, 0.0f, 0.0f, 1.0f, static_cast(x), static_cast(y), }; 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."); } bool SkXPSDevice::onReadPixels(const SkBitmap& bitmap, int x, int y, SkCanvas::Config8888) { return false; } SkDevice* SkXPSDevice::onCreateCompatibleDevice(SkBitmap::Config config, int width, int height, bool isOpaque, Usage usage) { if (SkDevice::kGeneral_Usage == usage) { return NULL; SK_CRASH(); //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; } return new SkXPSDevice(this->fXpsFactory.get()); } SkXPSDevice::SkXPSDevice(IXpsOMObjectFactory* xpsFactory) : SkDevice(make_fake_bitmap(10000, 10000)) , fCurrentPage(0) { HRVM(CoCreateInstance( CLSID_XpsOMObjectFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&this->fXpsFactory)), "Could not create factory for layer."); HRVM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas), "Could not create canvas for layer."); } bool SkXPSDevice::allowImageFilter(SkImageFilter*) { return false; }