| /* |
| * 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 GrBackendSemaphore_DEFINED |
| #define GrBackendSemaphore_DEFINED |
| |
| #include "include/gpu/GrTypes.h" |
| |
| #include "include/gpu/gl/GrGLTypes.h" |
| #include "include/gpu/mtl/GrMtlTypes.h" |
| #include "include/gpu/vk/GrVkTypes.h" |
| #ifdef SK_DIRECT3D |
| #include "include/private/GrD3DTypesMinimal.h" |
| #endif |
| |
| /** |
| * Wrapper class for passing into and receiving data from Ganesh about a backend semaphore object. |
| */ |
| class GrBackendSemaphore { |
| public: |
| // For convenience we just set the backend here to OpenGL. The GrBackendSemaphore cannot be used |
| // until either initGL or initVulkan are called which will set the appropriate GrBackend. |
| GrBackendSemaphore() |
| : fBackend(GrBackendApi::kOpenGL), fGLSync(nullptr), fIsInitialized(false) {} |
| |
| #ifdef SK_DIRECT3D |
| // We only need to specify these if Direct3D is enabled, because it requires special copy |
| // characteristics. |
| ~GrBackendSemaphore(); |
| GrBackendSemaphore(const GrBackendSemaphore&); |
| GrBackendSemaphore& operator=(const GrBackendSemaphore&); |
| #endif |
| |
| void initGL(GrGLsync sync) { |
| fBackend = GrBackendApi::kOpenGL; |
| fGLSync = sync; |
| fIsInitialized = true; |
| } |
| |
| void initVulkan(VkSemaphore semaphore) { |
| fBackend = GrBackendApi::kVulkan; |
| fVkSemaphore = semaphore; |
| #ifdef SK_VULKAN |
| fIsInitialized = true; |
| #else |
| fIsInitialized = false; |
| #endif |
| } |
| |
| // It is the creator's responsibility to ref the MTLEvent passed in here, via __bridge_retained. |
| // The other end will wrap this BackendSemaphore and take the ref, via __bridge_transfer. |
| void initMetal(GrMTLHandle event, uint64_t value) { |
| fBackend = GrBackendApi::kMetal; |
| fMtlEvent = event; |
| fMtlValue = value; |
| #ifdef SK_METAL |
| fIsInitialized = true; |
| #else |
| fIsInitialized = false; |
| #endif |
| } |
| |
| #ifdef SK_DIRECT3D |
| void initDirect3D(const GrD3DFenceInfo& info) { |
| fBackend = GrBackendApi::kDirect3D; |
| this->assignD3DFenceInfo(info); |
| fIsInitialized = true; |
| } |
| #endif |
| |
| bool isInitialized() const { return fIsInitialized; } |
| |
| GrGLsync glSync() const { |
| if (!fIsInitialized || GrBackendApi::kOpenGL != fBackend) { |
| return nullptr; |
| } |
| return fGLSync; |
| } |
| |
| VkSemaphore vkSemaphore() const { |
| if (!fIsInitialized || GrBackendApi::kVulkan != fBackend) { |
| return VK_NULL_HANDLE; |
| } |
| return fVkSemaphore; |
| } |
| |
| GrMTLHandle mtlSemaphore() const { |
| if (!fIsInitialized || GrBackendApi::kMetal != fBackend) { |
| return nullptr; |
| } |
| return fMtlEvent; |
| } |
| |
| uint64_t mtlValue() const { |
| if (!fIsInitialized || GrBackendApi::kMetal != fBackend) { |
| return 0; |
| } |
| return fMtlValue; |
| } |
| |
| #ifdef SK_DIRECT3D |
| bool getD3DFenceInfo(GrD3DFenceInfo* outInfo) const; |
| #endif |
| |
| private: |
| #ifdef SK_DIRECT3D |
| void assignD3DFenceInfo(const GrD3DFenceInfo& info); |
| #endif |
| |
| GrBackendApi fBackend; |
| union { |
| GrGLsync fGLSync; |
| VkSemaphore fVkSemaphore; |
| GrMTLHandle fMtlEvent; // Expected to be an id<MTLEvent> |
| #ifdef SK_DIRECT3D |
| GrD3DFenceInfo* fD3DFenceInfo; |
| #endif |
| }; |
| uint64_t fMtlValue; |
| bool fIsInitialized; |
| }; |
| |
| #endif |