зеркало из https://github.com/mozilla/gecko-dev.git
118 строки
3.2 KiB
C++
118 строки
3.2 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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#pragma once
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#include <ApplicationServices/ApplicationServices.h>
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#include "2D.h"
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namespace mozilla {
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namespace gfx {
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class DrawTargetCG;
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class SourceSurfaceCG : public SourceSurface
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{
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public:
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SourceSurfaceCG() {}
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SourceSurfaceCG(CGImageRef aImage) : mImage(aImage) {}
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~SourceSurfaceCG();
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virtual SurfaceType GetType() const { return SURFACE_COREGRAPHICS_IMAGE; }
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virtual IntSize GetSize() const;
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virtual SurfaceFormat GetFormat() const;
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virtual TemporaryRef<DataSourceSurface> GetDataSurface();
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CGImageRef GetImage() { return mImage; }
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bool InitFromData(unsigned char *aData,
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const IntSize &aSize,
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int32_t aStride,
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SurfaceFormat aFormat);
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private:
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CGImageRef mImage;
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/* It might be better to just use the bitmap info from the CGImageRef to
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* deduce the format to save space in SourceSurfaceCG,
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* for now we just store it in mFormat */
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SurfaceFormat mFormat;
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};
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class DataSourceSurfaceCG : public DataSourceSurface
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{
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public:
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DataSourceSurfaceCG() {}
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DataSourceSurfaceCG(CGImageRef aImage);
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~DataSourceSurfaceCG();
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virtual SurfaceType GetType() const { return SURFACE_DATA; }
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virtual IntSize GetSize() const;
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virtual SurfaceFormat GetFormat() const { return FORMAT_B8G8R8A8; }
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CGImageRef GetImage() { return mImage; }
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bool InitFromData(unsigned char *aData,
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const IntSize &aSize,
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int32_t aStride,
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SurfaceFormat aFormat);
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virtual unsigned char *GetData();
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virtual int32_t Stride() { return CGImageGetBytesPerRow(mImage); }
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private:
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CGContextRef mCg;
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CGImageRef mImage;
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//XXX: we don't need to store mData we can just get it from the CGContext
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void *mData;
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/* It might be better to just use the bitmap info from the CGImageRef to
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* deduce the format to save space in SourceSurfaceCG,
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* for now we just store it in mFormat */
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};
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class SourceSurfaceCGBitmapContext : public DataSourceSurface
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{
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public:
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SourceSurfaceCGBitmapContext(DrawTargetCG *);
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~SourceSurfaceCGBitmapContext();
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virtual SurfaceType GetType() const { return SURFACE_COREGRAPHICS_CGCONTEXT; }
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virtual IntSize GetSize() const;
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virtual SurfaceFormat GetFormat() const { return FORMAT_B8G8R8A8; }
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CGImageRef GetImage() { EnsureImage(); return mImage; }
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virtual unsigned char *GetData() { return static_cast<unsigned char*>(mData); }
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virtual int32_t Stride() { return mStride; }
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private:
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//XXX: do the other backends friend their DrawTarget?
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friend class DrawTargetCG;
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void DrawTargetWillChange();
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void EnsureImage() const;
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// We hold a weak reference to these two objects.
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// The cycle is broken by DrawTargetWillChange
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DrawTargetCG *mDrawTarget;
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CGContextRef mCg;
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mutable CGImageRef mImage;
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// mData can be owned by three different things:
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// mImage, mCg or SourceSurfaceCGBitmapContext
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void *mData;
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int32_t mStride;
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IntSize mSize;
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};
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}
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}
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