ef843cdcd1
copy of the texels in VRAM rather than a readback and re-upload. This gives a 3-10X speedup on recursive canvas-to-canvas draws. N.B.: This introduces a new GM test, which will need new baselines. git-svn-id: http://skia.googlecode.com/svn/trunk@2790 2bbb7eff-a529-9590-31e7-b0007b416f81
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
|
|
/*
|
|
* Copyright 2010 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
|
|
|
|
#ifndef SkGrTexturePixelRef_DEFINED
|
|
#define SkGrTexturePixelRef_DEFINED
|
|
|
|
#include "SkBitmap.h"
|
|
#include "SkPixelRef.h"
|
|
#include "GrTexture.h"
|
|
#include "GrRenderTarget.h"
|
|
|
|
|
|
/**
|
|
* Common baseclass that implements onLockPixels() by calling onReadPixels().
|
|
* Since it has a copy, it always returns false for onLockPixelsAreWritable().
|
|
*/
|
|
class SkROLockPixelsPixelRef : public SkPixelRef {
|
|
public:
|
|
SkROLockPixelsPixelRef();
|
|
virtual ~SkROLockPixelsPixelRef();
|
|
|
|
protected:
|
|
// override from SkPixelRef
|
|
virtual void* onLockPixels(SkColorTable** ptr);
|
|
virtual void onUnlockPixels();
|
|
virtual bool onLockPixelsAreWritable() const; // return false;
|
|
|
|
private:
|
|
SkBitmap fBitmap;
|
|
typedef SkPixelRef INHERITED;
|
|
};
|
|
|
|
/**
|
|
* PixelRef that wraps a GrTexture
|
|
*/
|
|
class SkGrTexturePixelRef : public SkROLockPixelsPixelRef {
|
|
public:
|
|
SkGrTexturePixelRef(GrTexture*);
|
|
virtual ~SkGrTexturePixelRef();
|
|
|
|
// override from SkPixelRef
|
|
virtual SkGpuTexture* getTexture();
|
|
|
|
protected:
|
|
// override from SkPixelRef
|
|
virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subset);
|
|
|
|
// override from SkPixelRef
|
|
virtual SkPixelRef* deepCopy(SkBitmap::Config dstConfig) SK_OVERRIDE;
|
|
|
|
private:
|
|
GrTexture* fTexture;
|
|
typedef SkROLockPixelsPixelRef INHERITED;
|
|
};
|
|
|
|
/**
|
|
* PixelRef that wraps a GrRenderTarget
|
|
*/
|
|
class SkGrRenderTargetPixelRef : public SkROLockPixelsPixelRef {
|
|
public:
|
|
SkGrRenderTargetPixelRef(GrRenderTarget* rt);
|
|
virtual ~SkGrRenderTargetPixelRef();
|
|
|
|
// override from SkPixelRef
|
|
virtual SkGpuTexture* getTexture();
|
|
|
|
protected:
|
|
// override from SkPixelRef
|
|
virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subset);
|
|
|
|
// override from SkPixelRef
|
|
virtual SkPixelRef* deepCopy(SkBitmap::Config dstConfig) SK_OVERRIDE;
|
|
|
|
private:
|
|
GrRenderTarget* fRenderTarget;
|
|
typedef SkROLockPixelsPixelRef INHERITED;
|
|
};
|
|
|
|
#endif
|
|
|