Jim Van Verth | 7bb0ff0 | 2021-09-30 16:27:30 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2021 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "include/core/SkSurface.h" |
| 9 | #include "src/core/SkMathPriv.h" |
| 10 | #include "tools/sk_app/GraphiteMetalWindowContext.h" |
| 11 | |
| 12 | #include "experimental/graphite/include/Context.h" |
| 13 | #include "experimental/graphite/include/mtl/MtlBackendContext.h" |
| 14 | |
| 15 | using sk_app::DisplayParams; |
| 16 | using sk_app::GraphiteMetalWindowContext; |
| 17 | |
| 18 | namespace sk_app { |
| 19 | |
| 20 | GraphiteMetalWindowContext::GraphiteMetalWindowContext(const DisplayParams& params) |
| 21 | : WindowContext(params) |
| 22 | , fValid(false) |
| 23 | , fDrawableHandle(nil) { |
| 24 | fDisplayParams.fMSAASampleCount = GrNextPow2(fDisplayParams.fMSAASampleCount); |
| 25 | } |
| 26 | |
| 27 | void GraphiteMetalWindowContext::initializeContext() { |
| 28 | SkASSERT(!fContext); |
| 29 | SkASSERT(!fGraphiteContext); |
| 30 | |
| 31 | fDevice.reset(MTLCreateSystemDefaultDevice()); |
| 32 | fQueue.reset([*fDevice newCommandQueue]); |
| 33 | |
| 34 | if (fDisplayParams.fMSAASampleCount > 1) { |
| 35 | if (@available(macOS 10.11, iOS 9.0, *)) { |
| 36 | if (![*fDevice supportsTextureSampleCount:fDisplayParams.fMSAASampleCount]) { |
| 37 | return; |
| 38 | } |
| 39 | } else { |
| 40 | return; |
| 41 | } |
| 42 | } |
| 43 | fSampleCount = fDisplayParams.fMSAASampleCount; |
| 44 | fStencilBits = 8; |
| 45 | |
| 46 | fValid = this->onInitializeContext(); |
| 47 | |
| 48 | skgpu::mtl::BackendContext backendContext = {}; |
| 49 | backendContext.fDevice.retain((GrMTLHandle)fDevice.get()); |
| 50 | backendContext.fQueue.retain((GrMTLHandle)fQueue.get()); |
| 51 | fGraphiteContext = skgpu::Context::MakeMetal(backendContext); |
| 52 | // TODO |
| 53 | // if (!fGraphiteContext && fDisplayParams.fMSAASampleCount > 1) { |
| 54 | // fDisplayParams.fMSAASampleCount /= 2; |
| 55 | // this->initializeContext(); |
| 56 | // return; |
| 57 | // } |
| 58 | } |
| 59 | |
| 60 | void GraphiteMetalWindowContext::destroyContext() { |
| 61 | if (fGraphiteContext) { |
| 62 | // TODO? |
| 63 | // in case we have outstanding refs to this (lua?) |
| 64 | // fGraphiteContext->abandonContext(); |
| 65 | fGraphiteContext.reset(); |
| 66 | } |
| 67 | |
| 68 | this->onDestroyContext(); |
| 69 | |
| 70 | fMetalLayer = nil; |
| 71 | fValid = false; |
| 72 | |
| 73 | #if GR_METAL_SDK_VERSION >= 230 |
| 74 | if (@available(macOS 11.0, iOS 14.0, *)) { |
| 75 | [fPipelineArchive release]; |
| 76 | } |
| 77 | #endif |
| 78 | fQueue.reset(); |
| 79 | fDevice.reset(); |
| 80 | } |
| 81 | |
| 82 | sk_sp<SkSurface> GraphiteMetalWindowContext::getBackbufferSurface() { |
| 83 | sk_sp<SkSurface> surface; |
| 84 | id<CAMetalDrawable> currentDrawable = [fMetalLayer nextDrawable]; |
| 85 | |
| 86 | // TODO |
| 87 | // GrMtlTextureInfo fbInfo; |
| 88 | // fbInfo.fTexture.retain(currentDrawable.texture); |
| 89 | // |
| 90 | // GrBackendRenderTarget backendRT(fWidth, |
| 91 | // fHeight, |
| 92 | // fSampleCount, |
| 93 | // fbInfo); |
| 94 | // |
| 95 | // surface = SkSurface::MakeFromBackendRenderTarget(fContext.get(), backendRT, |
| 96 | // kTopLeft_GrSurfaceOrigin, |
| 97 | // kBGRA_8888_SkColorType, |
| 98 | // fDisplayParams.fColorSpace, |
| 99 | // &fDisplayParams.fSurfaceProps); |
| 100 | |
| 101 | fDrawableHandle = CFRetain((GrMTLHandle) currentDrawable); |
| 102 | |
| 103 | return surface; |
| 104 | } |
| 105 | |
| 106 | void GraphiteMetalWindowContext::swapBuffers() { |
| 107 | id<CAMetalDrawable> currentDrawable = (id<CAMetalDrawable>)fDrawableHandle; |
| 108 | |
| 109 | id<MTLCommandBuffer> commandBuffer([*fQueue commandBuffer]); |
| 110 | commandBuffer.label = @"Present"; |
| 111 | |
| 112 | [commandBuffer presentDrawable:currentDrawable]; |
| 113 | [commandBuffer commit]; |
| 114 | // ARC is off in sk_app, so we need to release the CF ref manually |
| 115 | CFRelease(fDrawableHandle); |
| 116 | fDrawableHandle = nil; |
| 117 | } |
| 118 | |
| 119 | void GraphiteMetalWindowContext::setDisplayParams(const DisplayParams& params) { |
| 120 | this->destroyContext(); |
| 121 | fDisplayParams = params; |
| 122 | this->initializeContext(); |
| 123 | } |
| 124 | |
| 125 | void GraphiteMetalWindowContext::activate(bool isActive) {} |
| 126 | |
| 127 | } //namespace sk_app |