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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrMtlRenderTarget_DEFINED
#define GrMtlRenderTarget_DEFINED
#include "GrRenderTarget.h"
#include "GrBackendSurface.h"
#import <Metal/Metal.h>
class GrMtlGpu;
class GrMtlRenderTarget: public GrRenderTarget {
public:
static sk_sp<GrMtlRenderTarget> CreateNewRenderTarget(GrMtlGpu*, const GrSurfaceDesc&,
SkBudgeted);
static sk_sp<GrMtlRenderTarget> MakeWrappedRenderTarget(GrMtlGpu*, const GrSurfaceDesc&);
~GrMtlRenderTarget() override;
// override of GrRenderTarget
ResolveType getResolveType() const override {
return kCantResolve_ResolveType;
#if 0 // TODO figure this once we support msaa
if (this->numColorSamples() > 1) {
return kCanResolve_ResolveType;
}
return kAutoResolves_ResolveType;
#endif
}
bool canAttemptStencilAttachment() const override {
return true;
}
GrBackendObject getRenderTargetHandle() const override;
GrBackendRenderTarget getBackendRenderTarget() const override {
return GrBackendRenderTarget(); // invalid
}
protected:
GrMtlRenderTarget(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
id<MTLTexture> renderTexture,
id<MTLTexture> resolveTexture);
GrMtlRenderTarget(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
id<MTLTexture> renderTexture);
GrMtlGpu* getMtlGpu() const;
void onAbandon() override;
void onRelease() override;
// This accounts for the texture's memory and any MSAA renderbuffer's memory.
size_t onGpuMemorySize() const override {
int numColorSamples = this->numColorSamples();
// The plus 1 is to account for the resolve texture or if not using msaa the RT itself
if (numColorSamples > 1) {
++numColorSamples;
}
return GrSurface::ComputeSize(this->config(), this->width(), this->height(),
numColorSamples, GrMipMapped::kNo);
}
id<MTLTexture> fRenderTexture;
id<MTLTexture> fResolveTexture;
private:
GrMtlRenderTarget(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
SkBudgeted,
id<MTLTexture> renderTexture,
id<MTLTexture> resolveTexture);
GrMtlRenderTarget(GrMtlGpu* gpu,
const GrSurfaceDesc& desc,
SkBudgeted,
id<MTLTexture> renderTexture);
static sk_sp<GrMtlRenderTarget> Make(GrMtlGpu*,
const GrSurfaceDesc&,
SkBudgeted,
id<MTLTexture> renderTexture,
bool isWrapped);
bool completeStencilAttachment() override;
};
#endif
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