128 lines
3.9 KiB
Plaintext
128 lines
3.9 KiB
Plaintext
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/*
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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/core/SkMathPriv.h"
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#include "tools/sk_app/GraphiteMetalWindowContext.h"
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#include "experimental/graphite/include/Context.h"
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#include "experimental/graphite/include/mtl/MtlBackendContext.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::mtl::BackendContext backendContext = {};
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backendContext.fDevice.retain((GrMTLHandle)fDevice.get());
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backendContext.fQueue.retain((GrMTLHandle)fQueue.get());
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fGraphiteContext = skgpu::Context::MakeMetal(backendContext);
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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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// TODO?
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// in case we have outstanding refs to this (lua?)
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// fGraphiteContext->abandonContext();
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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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#if GR_METAL_SDK_VERSION >= 230
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if (@available(macOS 11.0, iOS 14.0, *)) {
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[fPipelineArchive release];
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}
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#endif
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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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// TODO
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// GrMtlTextureInfo fbInfo;
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// fbInfo.fTexture.retain(currentDrawable.texture);
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//
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// GrBackendRenderTarget backendRT(fWidth,
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// fHeight,
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// fSampleCount,
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// fbInfo);
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//
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// surface = SkSurface::MakeFromBackendRenderTarget(fContext.get(), backendRT,
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// kTopLeft_GrSurfaceOrigin,
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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((GrMTLHandle) currentDrawable);
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return surface;
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}
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void GraphiteMetalWindowContext::swapBuffers() {
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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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