skia2/include/gpu/GrTextureContext.h
Robert Phillips 398487a850 Add a deferred copy surface (take 2)
This CL forces all GrSurface copies to go through a GrSurfaceContext (rather than GrContext).

There is a bit of goofiness going on here until read/writePixels is also consolidated in GrSurfaceContext and a proxy-backed SkImage/SkSurface is added.

This is a reland of https://skia-review.googlesource.com/c/5773/ (Add a deferred copy surface)

Change-Id: Ide560f569aede5e622420dc2f30eef76357d69f4
Reviewed-on: https://skia-review.googlesource.com/5939
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2016-12-13 22:01:58 +00:00

58 lines
1.5 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrTextureContext_DEFINED
#define GrTextureContext_DEFINED
#include "GrSurfaceContext.h"
#include "../private/GrTextureProxy.h"
class GrContext;
class GrDrawingManager;
class GrSurface;
class GrTextureOpList;
class GrTextureProxy;
struct SkIPoint;
struct SkIRect;
/**
* A helper object to orchestrate commands (currently just copies) for GrSurfaces that are
* GrTextures and not GrRenderTargets.
*/
class SK_API GrTextureContext : public GrSurfaceContext {
public:
~GrTextureContext() override;
GrSurfaceProxy* asDeferredSurface() override { return fTextureProxy.get(); }
protected:
GrTextureContext(GrContext*, GrDrawingManager*, sk_sp<GrTextureProxy>, GrAuditTrail*,
GrSingleOwner*);
GrDrawingManager* drawingManager() { return fDrawingManager; }
SkDEBUGCODE(void validate() const;)
private:
friend class GrDrawingManager; // for ctor
bool onCopy(GrSurfaceProxy* src, const SkIRect& srcRect, const SkIPoint& dstPoint) override;
GrTextureOpList* getOpList();
GrDrawingManager* fDrawingManager;
sk_sp<GrTextureProxy> fTextureProxy;
// In MDB-mode the GrOpList can be closed by some other renderTargetContext that has picked
// it up. For this reason, the GrOpList should only ever be accessed via 'getOpList'.
GrTextureOpList* fOpList;
typedef GrSurfaceContext INHERITED;
};
#endif