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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 GrGLTexture_DEFINED
#define GrGLTexture_DEFINED
#include "GrGpu.h"
#include "GrTexture.h"
#include "GrGLUtil.h"
class GrGLGpu;
class GrGLTexture : public GrTexture {
public:
struct TexParams {
GrGLenum fMinFilter;
GrGLenum fMagFilter;
GrGLenum fWrapS;
GrGLenum fWrapT;
GrGLenum fMaxMipMapLevel;
GrGLenum fSwizzleRGBA[4];
void invalidate() { memset(this, 0xff, sizeof(TexParams)); }
};
struct IDDesc {
GrGLTextureInfo fInfo;
GrBackendObjectOwnership fOwnership;
};
GrGLTexture(GrGLGpu*, SkBudgeted, const GrSurfaceDesc&, const IDDesc&, GrMipMapsStatus);
~GrGLTexture() override {
// check that invokeReleaseProc has been called (if needed)
SkASSERT(!fReleaseHelper);
}
GrBackendTexture getBackendTexture() const override;
void textureParamsModified() override { fTexParams.invalidate(); }
void setRelease(sk_sp<GrReleaseProcHelper> releaseHelper) override {
fReleaseHelper = std::move(releaseHelper);
}
// These functions are used to track the texture parameters associated with the texture.
const TexParams& getCachedTexParams(GrGpu::ResetTimestamp* timestamp) const {
*timestamp = fTexParamsTimestamp;
return fTexParams;
}
void setCachedTexParams(const TexParams& texParams,
GrGpu::ResetTimestamp timestamp) {
fTexParams = texParams;
fTexParamsTimestamp = timestamp;
}
GrGLuint textureID() const { return fInfo.fID; }
GrGLenum target() const { return fInfo.fTarget; }
bool hasBaseLevelBeenBoundToFBO() const { return fBaseLevelHasBeenBoundToFBO; }
void baseLevelWasBoundToFBO() { fBaseLevelHasBeenBoundToFBO = true; }
static sk_sp<GrGLTexture> MakeWrapped(GrGLGpu*, const GrSurfaceDesc&, GrMipMapsStatus,
const IDDesc&);
void dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const override;
protected:
// Constructor for subclasses.
GrGLTexture(GrGLGpu*, const GrSurfaceDesc&, const IDDesc&, GrMipMapsStatus);
enum Wrapped { kWrapped };
// Constructor for instances wrapping backend objects.
GrGLTexture(GrGLGpu*, Wrapped, const GrSurfaceDesc&, GrMipMapsStatus, const IDDesc&);
void init(const GrSurfaceDesc&, const IDDesc&);
void onAbandon() override;
void onRelease() override;
bool onStealBackendTexture(GrBackendTexture*, SkImage::BackendTextureReleaseProc*) override;
private:
void invokeReleaseProc() {
if (fReleaseHelper) {
// Depending on the ref count of fReleaseHelper this may or may not actually trigger the
// ReleaseProc to be called.
fReleaseHelper.reset();
}
}
TexParams fTexParams;
GrGpu::ResetTimestamp fTexParamsTimestamp;
// Holds the texture target and ID. A pointer to this may be shared to external clients for
// direct interaction with the GL object.
GrGLTextureInfo fInfo;
GrBackendObjectOwnership fTextureIDOwnership;
bool fBaseLevelHasBeenBoundToFBO = false;
sk_sp<GrReleaseProcHelper> fReleaseHelper;
typedef GrTexture INHERITED;
};
#endif
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