| /* |
| * Copyright 2019 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrMtlDepthStencil_DEFINED |
| #define GrMtlDepthStencil_DEFINED |
| |
| #import <Metal/Metal.h> |
| |
| #include "include/gpu/GrTypes.h" |
| #include "src/core/SkChecksum.h" |
| #include "src/gpu/ganesh/GrManagedResource.h" |
| #include <atomic> |
| |
| class GrMtlGpu; |
| class GrStencilSettings; |
| |
| // A wrapper for a MTLDepthStencilState object with caching support. |
| class GrMtlDepthStencil : public GrManagedResource { |
| public: |
| static GrMtlDepthStencil* Create(const GrMtlGpu*, const GrStencilSettings&, GrSurfaceOrigin); |
| |
| ~GrMtlDepthStencil() override { fMtlDepthStencilState = nil; } |
| |
| id<MTLDepthStencilState> mtlDepthStencil() const { return fMtlDepthStencilState; } |
| |
| struct Key { |
| struct Face { |
| uint32_t fReadMask; |
| uint32_t fWriteMask; |
| uint32_t fOps; |
| }; |
| Face fFront; |
| Face fBack; |
| |
| bool operator==(const Key& that) const { |
| return this->fFront.fReadMask == that.fFront.fReadMask && |
| this->fFront.fWriteMask == that.fFront.fWriteMask && |
| this->fFront.fOps == that.fFront.fOps && |
| this->fBack.fReadMask == that.fBack.fReadMask && |
| this->fBack.fWriteMask == that.fBack.fWriteMask && |
| this->fBack.fOps == that.fBack.fOps; |
| } |
| }; |
| |
| // Helpers for hashing GrMtlDepthStencil |
| static Key GenerateKey(const GrStencilSettings&, GrSurfaceOrigin); |
| |
| static const Key& GetKey(const GrMtlDepthStencil& depthStencil) { return depthStencil.fKey; } |
| static uint32_t Hash(const Key& key) { |
| return SkChecksum::Hash32(&key, sizeof(Key)); |
| } |
| |
| #ifdef SK_TRACE_MANAGED_RESOURCES |
| /** output a human-readable dump of this resource's information |
| */ |
| void dumpInfo() const override { |
| SkDebugf("GrMtlDepthStencil: %p (%ld refs)\n", fMtlDepthStencilState, |
| CFGetRetainCount((CFTypeRef)fMtlDepthStencilState)); |
| } |
| #endif |
| |
| void freeGPUData() const override { |
| fMtlDepthStencilState = nil; |
| } |
| |
| private: |
| GrMtlDepthStencil(id<MTLDepthStencilState> mtlDepthStencilState, Key key) |
| : fMtlDepthStencilState(mtlDepthStencilState) |
| , fKey(key) {} |
| |
| mutable id<MTLDepthStencilState> fMtlDepthStencilState; |
| Key fKey; |
| }; |
| |
| #endif |