1 /*
2 * Copyright 2022 Google LLC
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 "tools/sk_app/GraphiteDawnWindowContext.h"
9 #include "tools/sk_app/win/WindowContextFactory_win.h"
10
11 using sk_app::DisplayParams;
12 using sk_app::GraphiteDawnWindowContext;
13
14 namespace {
15
16 class GraphiteDawnD3D12WindowContext_win : public GraphiteDawnWindowContext {
17 public:
18 GraphiteDawnD3D12WindowContext_win(HWND hwnd, const DisplayParams& params);
19
20 ~GraphiteDawnD3D12WindowContext_win() override;
21
22 bool onInitializeContext() override;
23 void onDestroyContext() override;
24 void onSwapBuffers() override;
25 void resize(int w, int h) override;
26
27 private:
28 HWND fWindow;
29
30 using INHERITED = GraphiteDawnWindowContext;
31 };
32
GraphiteDawnD3D12WindowContext_win(HWND hwnd,const DisplayParams & params)33 GraphiteDawnD3D12WindowContext_win::GraphiteDawnD3D12WindowContext_win(HWND hwnd,
34 const DisplayParams& params)
35 : INHERITED(params, wgpu::TextureFormat::BGRA8Unorm), fWindow(hwnd) {
36 RECT rect;
37 GetClientRect(hwnd, &rect);
38 this->initializeContext(rect.right - rect.left, rect.bottom - rect.top);
39 }
40
~GraphiteDawnD3D12WindowContext_win()41 GraphiteDawnD3D12WindowContext_win::~GraphiteDawnD3D12WindowContext_win() {
42 this->destroyContext();
43 }
44
onInitializeContext()45 bool GraphiteDawnD3D12WindowContext_win::onInitializeContext() {
46 SkASSERT(!!fWindow);
47
48 auto device = this->createDevice(wgpu::BackendType::D3D12);
49 if (!device) {
50 SkASSERT(device);
51 return false;
52 }
53
54 wgpu::SurfaceDescriptorFromWindowsHWND surfaceChainedDesc;
55 surfaceChainedDesc.hwnd = fWindow;
56 surfaceChainedDesc.hinstance = GetModuleHandle(nullptr);
57 wgpu::SurfaceDescriptor surfaceDesc;
58 surfaceDesc.nextInChain = &surfaceChainedDesc;
59
60 auto surface = wgpu::Instance(fInstance->Get()).CreateSurface(&surfaceDesc);
61 if (!surface) {
62 SkASSERT(false);
63 return false;
64 }
65
66 fDevice = std::move(device);
67 fSurface = std::move(surface);
68 fSwapChain = this->createSwapChain();
69
70 return true;
71 }
72
onDestroyContext()73 void GraphiteDawnD3D12WindowContext_win::onDestroyContext() {}
74
onSwapBuffers()75 void GraphiteDawnD3D12WindowContext_win::onSwapBuffers() {}
76
resize(int w,int h)77 void GraphiteDawnD3D12WindowContext_win::resize(int w, int h) {
78 fSwapChain = this->createSwapChain();
79 }
80
81 } // anonymous namespace
82
83 namespace sk_app {
84 namespace window_context_factory {
85
MakeGraphiteDawnD3D12ForWin(HWND hwnd,const DisplayParams & params)86 std::unique_ptr<WindowContext> MakeGraphiteDawnD3D12ForWin(HWND hwnd, const DisplayParams& params) {
87 std::unique_ptr<WindowContext> ctx(new GraphiteDawnD3D12WindowContext_win(hwnd, params));
88 if (!ctx->isValid()) {
89 return nullptr;
90 }
91 return ctx;
92 }
93
94 } // namespace window_context_factory
95 } // namespace sk_app
96