136 lines
4.5 KiB
Plaintext
136 lines
4.5 KiB
Plaintext
/*
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* Copyright 2021 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "include/core/SkSurface.h"
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#include "src/base/SkMathPriv.h"
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#include "tools/sk_app/GraphiteMetalWindowContext.h"
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#include "include/gpu/graphite/BackendTexture.h"
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#include "include/gpu/graphite/Context.h"
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#include "include/gpu/graphite/ContextOptions.h"
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#include "include/gpu/graphite/Recorder.h"
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#include "include/gpu/graphite/Recording.h"
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#include "include/gpu/graphite/mtl/MtlBackendContext.h"
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#include "include/gpu/graphite/mtl/MtlTypes.h"
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#include "include/gpu/graphite/mtl/MtlUtils.h"
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#include "tools/ToolUtils.h"
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using sk_app::DisplayParams;
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using sk_app::GraphiteMetalWindowContext;
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namespace sk_app {
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GraphiteMetalWindowContext::GraphiteMetalWindowContext(const DisplayParams& params)
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: WindowContext(params)
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, fValid(false)
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, fDrawableHandle(nil) {
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fDisplayParams.fMSAASampleCount = GrNextPow2(fDisplayParams.fMSAASampleCount);
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}
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void GraphiteMetalWindowContext::initializeContext() {
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SkASSERT(!fContext);
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SkASSERT(!fGraphiteContext);
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fDevice.reset(MTLCreateSystemDefaultDevice());
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fQueue.reset([*fDevice newCommandQueue]);
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if (fDisplayParams.fMSAASampleCount > 1) {
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if (@available(macOS 10.11, iOS 9.0, *)) {
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if (![*fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) {
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return;
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}
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} else {
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return;
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}
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}
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fSampleCount = fDisplayParams.fMSAASampleCount;
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fStencilBits = 8;
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fValid = this->onInitializeContext();
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skgpu::graphite::MtlBackendContext backendContext = {};
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backendContext.fDevice.retain((skgpu::graphite::MtlHandle)fDevice.get());
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backendContext.fQueue.retain((skgpu::graphite::MtlHandle)fQueue.get());
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skgpu::graphite::ContextOptions contextOptions;
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contextOptions.fStoreContextRefInRecorder = true;
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fGraphiteContext = skgpu::graphite::ContextFactory::MakeMetal(backendContext, contextOptions);
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fGraphiteRecorder = fGraphiteContext->makeRecorder(ToolUtils::CreateTestingRecorderOptions());
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// TODO
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// if (!fGraphiteContext && fDisplayParams.fMSAASampleCount > 1) {
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// fDisplayParams.fMSAASampleCount /= 2;
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// this->initializeContext();
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// return;
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// }
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}
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void GraphiteMetalWindowContext::destroyContext() {
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if (fGraphiteContext) {
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fGraphiteRecorder.reset();
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fGraphiteContext.reset();
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}
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this->onDestroyContext();
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fMetalLayer = nil;
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fValid = false;
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fQueue.reset();
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fDevice.reset();
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}
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sk_sp<SkSurface> GraphiteMetalWindowContext::getBackbufferSurface() {
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sk_sp<SkSurface> surface;
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id<CAMetalDrawable> currentDrawable = [fMetalLayer nextDrawable];
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skgpu::graphite::BackendTexture backendTex(this->dimensions(),
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(skgpu::graphite::MtlHandle)currentDrawable.texture);
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surface = SkSurface::MakeGraphiteFromBackendTexture(this->graphiteRecorder(),
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backendTex,
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kBGRA_8888_SkColorType,
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fDisplayParams.fColorSpace,
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&fDisplayParams.fSurfaceProps);
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fDrawableHandle = CFRetain((skgpu::graphite::MtlHandle) currentDrawable);
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return surface;
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}
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void GraphiteMetalWindowContext::swapBuffers() {
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// This chunk of code should not be in this class but higher up either in Window or
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// WindowContext
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std::unique_ptr<skgpu::graphite::Recording> recording = fGraphiteRecorder->snap();
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if (recording) {
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skgpu::graphite::InsertRecordingInfo info;
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info.fRecording = recording.get();
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fGraphiteContext->insertRecording(info);
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fGraphiteContext->submit(skgpu::graphite::SyncToCpu::kNo);
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}
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id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle;
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id<MTLCommandBuffer> commandBuffer([*fQueue commandBuffer]);
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commandBuffer.label = @"Present";
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[commandBuffer presentDrawable:currentDrawable];
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[commandBuffer commit];
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// ARC is off in sk_app, so we need to release the CF ref manually
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CFRelease(fDrawableHandle);
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fDrawableHandle = nil;
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}
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void GraphiteMetalWindowContext::setDisplayParams(const DisplayParams& params) {
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this->destroyContext();
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fDisplayParams = params;
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this->initializeContext();
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}
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void GraphiteMetalWindowContext::activate(bool isActive) {}
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} //namespace sk_app
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