skia2/include/gpu/GrSurface.h
Brian Salomon 34a2030d0a Remove window rects flag from GrInternalSurfaceFlags.
This flag is annoying to set correctly when writing test code.
Fortunately it has become redundant with the "is GL FBO 0" flag.

Change-Id: Ifd88292d2d6ea05bfe0d269e853baff857e70bfe
Reviewed-on: https://skia-review.googlesource.com/c/178929
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2018-12-18 18:17:03 +00:00

127 lines
3.7 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 "GrBackendSurface.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()); }
/**
* 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; }
virtual GrBackendFormat backendFormat() const = 0;
/**
* @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,
GrMipMapped, bool useNextPow2 = false);
/**
* The pixel values of this surface cannot be modified (e.g. doesn't support write pixels or
* MIP map level regen).
*/
bool readOnly() const { return fSurfaceFlags & GrInternalSurfaceFlags::kReadOnly; }
protected:
void setHasMixedSamples() {
SkASSERT(this->asRenderTarget());
fSurfaceFlags |= GrInternalSurfaceFlags::kMixedSampled;
}
bool hasMixedSamples() const { return fSurfaceFlags & GrInternalSurfaceFlags::kMixedSampled; }
void setGLRTFBOIDIs0() {
SkASSERT(this->asRenderTarget());
fSurfaceFlags |= GrInternalSurfaceFlags::kGLRTFBOIDIs0;
}
bool glRTFBOIDis0() const {
return fSurfaceFlags & GrInternalSurfaceFlags::kGLRTFBOIDIs0;
}
void setReadOnly() {
SkASSERT(!this->asRenderTarget());
fSurfaceFlags |= GrInternalSurfaceFlags::kReadOnly;
}
// 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)
, fSurfaceFlags(GrInternalSurfaceFlags::kNone) {
}
~GrSurface() override {}
void onRelease() override;
void onAbandon() override;
private:
const char* getResourceType() const override { return "Surface"; }
GrPixelConfig fConfig;
int fWidth;
int fHeight;
GrInternalSurfaceFlags fSurfaceFlags;
typedef GrGpuResource INHERITED;
};
#endif