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b17cef0f85
This has big improvement in the performance of GetImageData() because we make the snapshot lazily instead of using the vm_copy() method of CGBitmapContextCreateImage()
143 lines
4.5 KiB
C++
143 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Corporation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Bas Schouten <bschouten@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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DrawTargetCG *mDrawTarget;
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CGContextRef mCg;
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mutable CGImageRef mImage;
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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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