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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 "include/gpu/GrRenderTarget.h"
- #include "include/gpu/GrBackendSurface.h"
- #import <Metal/Metal.h>
- class GrMtlGpu;
- class GrMtlRenderTarget: public GrRenderTarget {
- public:
- static sk_sp<GrMtlRenderTarget> MakeWrappedRenderTarget(GrMtlGpu*,
- const GrSurfaceDesc&,
- int sampleCnt,
- id<MTLTexture>);
- ~GrMtlRenderTarget() override;
- // override of GrRenderTarget
- ResolveType getResolveType() const override {
- if (this->numSamples() > 1) {
- return kCanResolve_ResolveType;
- }
- return kAutoResolves_ResolveType;
- }
- bool canAttemptStencilAttachment() const override {
- return true;
- }
- id<MTLTexture> mtlColorTexture() const { return fColorTexture; }
- id<MTLTexture> mtlResolveTexture() const { return fResolveTexture; }
- GrBackendRenderTarget getBackendRenderTarget() const override;
- GrBackendFormat backendFormat() const override;
- protected:
- GrMtlRenderTarget(GrMtlGpu* gpu,
- const GrSurfaceDesc& desc,
- int sampleCnt,
- id<MTLTexture> colorTexture,
- id<MTLTexture> resolveTexture);
- GrMtlRenderTarget(GrMtlGpu* gpu,
- const GrSurfaceDesc& desc,
- id<MTLTexture> colorTexture);
- 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->numSamples();
- // TODO: When used as render targets certain formats may actually have a larger size than
- // the base format size. Check to make sure we are reporting the correct value here.
- // 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> fColorTexture;
- id<MTLTexture> fResolveTexture;
- private:
- // Extra param to disambiguate from constructor used by subclasses.
- enum Wrapped { kWrapped };
- GrMtlRenderTarget(GrMtlGpu* gpu,
- const GrSurfaceDesc& desc,
- int sampleCnt,
- id<MTLTexture> colorTexture,
- id<MTLTexture> resolveTexture,
- Wrapped);
- GrMtlRenderTarget(GrMtlGpu* gpu,
- const GrSurfaceDesc& desc,
- id<MTLTexture> colorTexture,
- Wrapped);
- bool completeStencilAttachment() override;
- typedef GrRenderTarget INHERITED;
- };
- #endif
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