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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrTexture_DEFINED
#define GrTexture_DEFINED
#include "GrBackendSurface.h"
#include "GrSamplerState.h"
#include "GrSurface.h"
#include "SkImage.h"
#include "SkPoint.h"
#include "SkRefCnt.h"
#include "../private/GrTypesPriv.h"
class GrTexturePriv;
class GrTexture : virtual public GrSurface {
public:
GrTexture* asTexture() override { return this; }
const GrTexture* asTexture() const override { return this; }
/**
* Return the native ID or handle to the texture, depending on the
* platform. e.g. on OpenGL, return the texture ID.
*/
virtual GrBackendObject getTextureHandle() const = 0;
virtual GrBackendTexture getBackendTexture() const = 0;
/**
* This function indicates that the texture parameters (wrap mode, filtering, ...) have been
* changed externally to Skia.
*/
virtual void textureParamsModified() = 0;
/**
* This function steals the backend texture from a uniquely owned GrTexture with no pending
* IO, passing it out to the caller. The GrTexture is deleted in the process.
*
* Note that if the GrTexture is not uniquely owned (no other refs), or has pending IO, this
* function will fail.
*/
static bool StealBackendTexture(sk_sp<GrTexture>&&,
GrBackendTexture*,
SkImage::BackendTextureReleaseProc*);
#ifdef SK_DEBUG
void validate() const {
this->INHERITED::validate();
}
#endif
// These match the definitions in SkImage, for whence they came
typedef void* ReleaseCtx;
typedef void (*ReleaseProc)(ReleaseCtx);
virtual void setRelease(ReleaseProc proc, ReleaseCtx ctx) = 0;
/** Access methods that are only to be used within Skia code. */
inline GrTexturePriv texturePriv();
inline const GrTexturePriv texturePriv() const;
protected:
GrTexture(GrGpu*, const GrSurfaceDesc&, GrSLType samplerType,
GrSamplerState::Filter highestFilterMode, GrMipMapsStatus);
virtual bool onStealBackendTexture(GrBackendTexture*, SkImage::BackendTextureReleaseProc*) = 0;
private:
void computeScratchKey(GrScratchKey*) const override;
size_t onGpuMemorySize() const override;
void markMipMapsDirty();
void markMipMapsClean();
GrSLType fSamplerType;
GrSamplerState::Filter fHighestFilterMode;
GrMipMapsStatus fMipMapsStatus;
int fMaxMipMapLevel;
SkDestinationSurfaceColorMode fMipColorMode;
friend class GrTexturePriv;
typedef GrSurface INHERITED;
};
#endif
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