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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.
- */
- #include "tools/gpu/mtl/MtlTestContext.h"
- #include "include/gpu/GrContext.h"
- #include "include/gpu/GrContextOptions.h"
- #include "src/gpu/mtl/GrMtlUtil.h"
- #ifdef SK_METAL
- #import <Metal/Metal.h>
- namespace {
- /**
- * Implements sk_gpu_test::FenceSync for Metal.
- *
- * Fences as MTLSharedEvents are not supported across all Metal platforms, so we do
- * the next best thing and submit an empty MTLCommandBuffer and track when it's complete.
- */
- class MtlFenceSync : public sk_gpu_test::FenceSync {
- public:
- MtlFenceSync(id<MTLCommandQueue> queue)
- : fQueue(queue) {
- SkDEBUGCODE(fUnfinishedSyncs = 0;)
- }
- ~MtlFenceSync() override {
- SkASSERT(!fUnfinishedSyncs);
- }
- sk_gpu_test::PlatformFence SK_WARN_UNUSED_RESULT insertFence() const override {
- id<MTLCommandBuffer> cmdBuffer = [fQueue commandBuffer];
- cmdBuffer.label = @"Fence";
- [cmdBuffer commit];
- SkDEBUGCODE(++fUnfinishedSyncs;)
- void* cfCmdBuffer = (__bridge_retained void*)cmdBuffer;
- return (sk_gpu_test::PlatformFence)cfCmdBuffer;
- }
- bool waitFence(sk_gpu_test::PlatformFence opaqueFence) const override {
- void* cfCmdBuffer = (void*) opaqueFence;
- id<MTLCommandBuffer> cmdBuffer = (__bridge id<MTLCommandBuffer>) cfCmdBuffer;
- [cmdBuffer waitUntilCompleted];
- return (MTLCommandBufferStatusError != cmdBuffer.status);
- }
- void deleteFence(sk_gpu_test::PlatformFence opaqueFence) const override {
- CFRelease((void*) opaqueFence);
- SkDEBUGCODE(--fUnfinishedSyncs;)
- }
- private:
- id<MTLCommandQueue> fQueue;
- SkDEBUGCODE(mutable int fUnfinishedSyncs;)
- typedef sk_gpu_test::FenceSync INHERITED;
- };
- GR_STATIC_ASSERT(sizeof(uint64_t) <= sizeof(sk_gpu_test::PlatformFence));
- class MtlTestContextImpl : public sk_gpu_test::MtlTestContext {
- public:
- static MtlTestContext* Create(MtlTestContext* sharedContext) {
- id<MTLDevice> device;
- id<MTLCommandQueue> queue;
- if (sharedContext) {
- MtlTestContextImpl* sharedContextImpl = (MtlTestContextImpl*) sharedContext;
- device = sharedContextImpl->device();
- queue = sharedContextImpl->queue();
- } else {
- device = MTLCreateSystemDefaultDevice();
- queue = [device newCommandQueue];
- }
- return new MtlTestContextImpl(device, queue);
- }
- ~MtlTestContextImpl() override { this->teardown(); }
- void testAbandon() override {}
- // There is really nothing to do here since we don't own any unqueued command buffers here.
- void submit() override {}
- void finish() override {}
- sk_sp<GrContext> makeGrContext(const GrContextOptions& options) override {
- return GrContext::MakeMetal((__bridge void*)fDevice,
- (__bridge void*)fQueue,
- options);
- }
- id<MTLDevice> device() { return fDevice; }
- id<MTLCommandQueue> queue() { return fQueue; }
- private:
- MtlTestContextImpl(id<MTLDevice> device, id<MTLCommandQueue> queue)
- : INHERITED(), fDevice(device), fQueue(queue) {
- fFenceSync.reset(new MtlFenceSync(queue));
- }
- void onPlatformMakeCurrent() const override {}
- std::function<void()> onPlatformGetAutoContextRestore() const override { return nullptr; }
- void onPlatformSwapBuffers() const override {}
- id<MTLDevice> fDevice;
- id<MTLCommandQueue> fQueue;
- typedef sk_gpu_test::MtlTestContext INHERITED;
- };
- } // anonymous namespace
- namespace sk_gpu_test {
- MtlTestContext* CreatePlatformMtlTestContext(MtlTestContext* sharedContext) {
- return MtlTestContextImpl::Create(sharedContext);
- }
- } // namespace sk_gpu_test
- #endif
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