skia2/include/gpu/GrSurface.h
Brian Salomon d34edf3dc9 Revert "Revert "Remove GrSurfaceDesc member from GrSurface.""
This reverts commit 4b30a96a3e.

Bug: skia:
Change-Id: I14d5b402c87df8fffbc29f16686fcfa18474fc48
Reviewed-on: https://skia-review.googlesource.com/17408
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2017-05-21 11:41:17 +00:00

102 lines
2.9 KiB
C++

/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrSurface_DEFINED
#define GrSurface_DEFINED
#include "GrTypes.h"
#include "GrGpuResource.h"
#include "SkImageInfo.h"
#include "SkRect.h"
class GrRenderTarget;
class GrSurfacePriv;
class GrTexture;
class SK_API GrSurface : public GrGpuResource {
public:
/**
* Retrieves the width of the surface.
*/
int width() const { return fWidth; }
/**
* Retrieves the height of the surface.
*/
int height() const { return fHeight; }
/**
* Helper that gets the width and height of the surface as a bounding rectangle.
*/
SkRect getBoundsRect() const { return SkRect::MakeIWH(this->width(), this->height()); }
GrSurfaceOrigin origin() const {
SkASSERT(kTopLeft_GrSurfaceOrigin == fOrigin || kBottomLeft_GrSurfaceOrigin == fOrigin);
return fOrigin;
}
/**
* Retrieves the pixel config specified when the surface was created.
* For render targets this can be kUnknown_GrPixelConfig
* if client asked us to render to a target that has a pixel
* config that isn't equivalent with one of our configs.
*/
GrPixelConfig config() const { return fConfig; }
/**
* @return the texture associated with the surface, may be null.
*/
virtual GrTexture* asTexture() { return nullptr; }
virtual const GrTexture* asTexture() const { return nullptr; }
/**
* @return the render target underlying this surface, may be null.
*/
virtual GrRenderTarget* asRenderTarget() { return nullptr; }
virtual const GrRenderTarget* asRenderTarget() const { return nullptr; }
/** Access methods that are only to be used within Skia code. */
inline GrSurfacePriv surfacePriv();
inline const GrSurfacePriv surfacePriv() const;
static size_t WorstCaseSize(const GrSurfaceDesc& desc, bool useNextPow2 = false);
static size_t ComputeSize(GrPixelConfig config, int width, int height, int colorSamplesPerPixel,
bool hasMIPMaps, bool useNextPow2 = false);
protected:
// Methods made available via GrSurfacePriv
bool hasPendingRead() const;
bool hasPendingWrite() const;
bool hasPendingIO() const;
// Provides access to methods that should be public within Skia code.
friend class GrSurfacePriv;
GrSurface(GrGpu* gpu, const GrSurfaceDesc& desc)
: INHERITED(gpu)
, fConfig(desc.fConfig)
, fWidth(desc.fWidth)
, fHeight(desc.fHeight)
, fOrigin(desc.fOrigin) {}
~GrSurface() override {}
void onRelease() override;
void onAbandon() override;
private:
GrPixelConfig fConfig;
int fWidth;
int fHeight;
GrSurfaceOrigin fOrigin;
typedef GrGpuResource INHERITED;
};
#endif