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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ScaledFontDWrite.h"
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#include "PathD2D.h"
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#include "Logging.h"
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#include <vector>
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namespace mozilla {
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namespace gfx {
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TemporaryRef<Path>
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ScaledFontDWrite::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
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{
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if (aTarget->GetType() != BACKEND_DIRECT2D) {
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// For now we only support Direct2D.
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gfxWarning() << "Attempt to use Direct Write font with non-Direct2D backend";
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return NULL;
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}
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RefPtr<PathBuilder> pathBuilder = aTarget->CreatePathBuilder();
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PathBuilderD2D *pathBuilderD2D =
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static_cast<PathBuilderD2D*>(pathBuilder.get());
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CopyGlyphsToSink(aBuffer, pathBuilderD2D->GetSink());
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return pathBuilder->Finish();
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}
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void
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ScaledFontDWrite::CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder)
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{
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// XXX - Check path builder type!
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PathBuilderD2D *pathBuilderD2D =
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static_cast<PathBuilderD2D*>(aBuilder);
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CopyGlyphsToSink(aBuffer, pathBuilderD2D->GetSink());
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}
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void
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ScaledFontDWrite::CopyGlyphsToSink(const GlyphBuffer &aBuffer, ID2D1GeometrySink *aSink)
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{
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std::vector<UINT16> indices;
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std::vector<FLOAT> advances;
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std::vector<DWRITE_GLYPH_OFFSET> offsets;
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indices.resize(aBuffer.mNumGlyphs);
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advances.resize(aBuffer.mNumGlyphs);
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offsets.resize(aBuffer.mNumGlyphs);
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memset(&advances.front(), 0, sizeof(FLOAT) * aBuffer.mNumGlyphs);
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for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
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indices[i] = aBuffer.mGlyphs[i].mIndex;
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offsets[i].advanceOffset = aBuffer.mGlyphs[i].mPosition.x;
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offsets[i].ascenderOffset = -aBuffer.mGlyphs[i].mPosition.y;
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}
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mFontFace->GetGlyphRunOutline(mSize, &indices.front(), &advances.front(),
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&offsets.front(), aBuffer.mNumGlyphs,
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FALSE, FALSE, aSink);
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}
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}
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}
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