gecko-dev/gfx/thebes/gfxCachedTempSurface.h
Benoit Jacob 55d6cf1e20 Bug 913872 - Take nested enums out of gfxASurface - 1/3 : automatic changes - r=jrmuizel
Generated by these regexes:

find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/gfx[A-Za-z0-9_]*Surface\:\:[a-z]*\(\(ImageFormat\|SurfaceType\|ContentType\|MemoryLocation\)[0-9A-Za-z_]*\)/gfx\1/g'

find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/gfx[A-Za-z0-9_]*Surface\:\:[a-z]*\(\(CONTENT_\|MEMORY_\)[0-9A-Za-z_]*\)/GFX_\1/g'

find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/\(^\|[^A-Za-z0-9_]\)\(CONTENT_COLOR\|CONTENT_ALPHA\|CONTENT_COLOR_ALPHA\|CONTENT_SENTINEL\|MEMORY_IN_PROCESS_HEAP\|MEMORY_IN_PROCESS_NONHEAP\|MEMORY_OUT_OF_PROCESS\)\($\|[^A-Za-z0-9_]\)/\1GFX_\2\3/g'

find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/\(^\|[^A-Za-z0-9_]\)\(ImageFormatARGB32\|ImageFormatRGB24\|ImageFormatA8\|ImageFormatA1\|ImageFormatRGB16_565\|ImageFormatUnknown\|SurfaceTypeImage\|SurfaceTypePDF\|SurfaceTypePS\|SurfaceTypeXlib\|SurfaceTypeXcb\|SurfaceTypeGlitz\|SurfaceTypeQuartz\|SurfaceTypeWin32\|SurfaceTypeBeOS\|SurfaceTypeDirectFB\|SurfaceTypeSVG\|SurfaceTypeOS2\|SurfaceTypeWin32Printing\|SurfaceTypeQuartzImage\|SurfaceTypeScript\|SurfaceTypeQPainter\|SurfaceTypeRecording\|SurfaceTypeVG\|SurfaceTypeGL\|SurfaceTypeDRM\|SurfaceTypeTee\|SurfaceTypeXML\|SurfaceTypeSkia\|SurfaceTypeSubsurface\|SurfaceTypeD2D\|SurfaceTypeMax\)\($\|[^A-Za-z0-9_]\)/\1gfx\2\3/g'
2013-09-24 16:45:13 -04:00

59 lines
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_CACHED_TEMP_SURFACE_H
#define GFX_CACHED_TEMP_SURFACE_H
#include "gfxASurface.h"
#include "nsExpirationTracker.h"
#include "nsSize.h"
class gfxContext;
/**
* This class can be used to cache double-buffering back surfaces.
*
* Large resource allocations may have an overhead that can be avoided by
* caching. Caching also alows the system to use history in deciding whether
* to manage the surfaces in video or system memory.
*
* However, because we don't want to set aside megabytes of unused resources
* unncessarily, these surfaces are released on a timer.
*/
class gfxCachedTempSurface {
public:
/**
* Returns a context for a surface that can be efficiently copied to
* |aSimilarTo|.
*
* When |aContentType| has an alpha component, the surface will be cleared.
* For opaque surfaces, the initial surface contents are undefined.
* When |aContentType| differs in different invocations this is handled
* appropriately, creating a new surface if necessary.
*
* Because the cached surface may have been created during a previous
* invocation, this will not be efficient if the new |aSimilarTo| has a
* different format, size, or gfxSurfaceType.
*/
already_AddRefed<gfxContext> Get(gfxContentType aContentType,
const gfxRect& aRect,
gfxASurface* aSimilarTo);
void Expire() { mSurface = nullptr; }
nsExpirationState* GetExpirationState() { return &mExpirationState; }
~gfxCachedTempSurface();
bool IsSurface(gfxASurface* aSurface) { return mSurface == aSurface; }
private:
nsRefPtr<gfxASurface> mSurface;
gfxIntSize mSize;
nsExpirationState mExpirationState;
gfxSurfaceType mType;
};
#endif /* GFX_CACHED_TEMP_SURFACE_H */