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1 | |
2 /* | |
3 * Copyright 2011 Google Inc. | |
4 * | |
5 * Use of this source code is governed by a BSD-style license that can be | |
6 * found in the LICENSE file. | |
7 */ | |
8 | |
9 #include "gl/GLTestContext.h" | |
10 | |
11 #include <windows.h> | |
12 #include <GL/GL.h> | |
13 #include "win/SkWGL.h" | |
14 | |
15 #define WIN32_LEAN_AND_MEAN | |
16 #include <windows.h> | |
17 | |
18 namespace { | |
19 | |
20 class WinGLTestContext : public sk_gpu_test::GLTestContext { | |
21 public: | |
22 WinGLTestContext(GrGLStandard forcedGpuAPI); | |
23 ~WinGLTestContext() override; | |
24 | |
25 private: | |
26 void destroyGLContext(); | |
27 | |
28 void onPlatformMakeCurrent() const override; | |
29 void onPlatformSwapBuffers() const override; | |
30 GrGLFuncPtr onPlatformGetProcAddress(const char* name) const override; | |
31 | |
32 HWND fWindow; | |
33 HDC fDeviceContext; | |
34 HGLRC fGlRenderContext; | |
35 static ATOM gWC; | |
36 SkWGLPbufferContext* fPbufferContext; | |
37 }; | |
38 | |
39 ATOM WinGLTestContext::gWC = 0; | |
40 | |
41 WinGLTestContext::WinGLTestContext(GrGLStandard forcedGpuAPI) | |
42 : fWindow(nullptr) | |
43 , fDeviceContext(nullptr) | |
44 , fGlRenderContext(0) | |
45 , fPbufferContext(nullptr) { | |
46 HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(nullptr); | |
47 | |
48 if (!gWC) { | |
49 WNDCLASS wc; | |
50 wc.cbClsExtra = 0; | |
51 wc.cbWndExtra = 0; | |
52 wc.hbrBackground = nullptr; | |
53 wc.hCursor = LoadCursor(nullptr, IDC_ARROW); | |
54 wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION); | |
55 wc.hInstance = hInstance; | |
56 wc.lpfnWndProc = (WNDPROC) DefWindowProc; | |
57 wc.lpszClassName = TEXT("Griffin"); | |
58 wc.lpszMenuName = nullptr; | |
59 wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; | |
60 | |
61 gWC = RegisterClass(&wc); | |
62 if (!gWC) { | |
63 SkDebugf("Could not register window class.\n"); | |
64 return; | |
65 } | |
66 } | |
67 | |
68 if (!(fWindow = CreateWindow(TEXT("Griffin"), | |
69 TEXT("The Invisible Man"), | |
70 WS_OVERLAPPEDWINDOW, | |
71 0, 0, 1, 1, | |
72 nullptr, nullptr, | |
73 hInstance, nullptr))) { | |
74 SkDebugf("Could not create window.\n"); | |
75 return; | |
76 } | |
77 | |
78 if (!(fDeviceContext = GetDC(fWindow))) { | |
79 SkDebugf("Could not get device context.\n"); | |
80 this->destroyGLContext(); | |
81 return; | |
82 } | |
83 // Requesting a Core profile would bar us from using NVPR. So we request | |
84 // compatibility profile or GL ES. | |
85 SkWGLContextRequest contextType = | |
86 kGLES_GrGLStandard == forcedGpuAPI ? | |
87 kGLES_SkWGLContextRequest : kGLPreferCompatibilityProfile_SkWGLContextRe
quest; | |
88 | |
89 fPbufferContext = SkWGLPbufferContext::Create(fDeviceContext, 0, contextType
); | |
90 | |
91 HDC dc; | |
92 HGLRC glrc; | |
93 | |
94 if (nullptr == fPbufferContext) { | |
95 if (!(fGlRenderContext = SkCreateWGLContext(fDeviceContext, 0, contextTy
pe))) { | |
96 SkDebugf("Could not create rendering context.\n"); | |
97 this->destroyGLContext(); | |
98 return; | |
99 } | |
100 dc = fDeviceContext; | |
101 glrc = fGlRenderContext; | |
102 } else { | |
103 ReleaseDC(fWindow, fDeviceContext); | |
104 fDeviceContext = 0; | |
105 DestroyWindow(fWindow); | |
106 fWindow = 0; | |
107 | |
108 dc = fPbufferContext->getDC(); | |
109 glrc = fPbufferContext->getGLRC(); | |
110 } | |
111 | |
112 if (!(wglMakeCurrent(dc, glrc))) { | |
113 SkDebugf("Could not set the context.\n"); | |
114 this->destroyGLContext(); | |
115 return; | |
116 } | |
117 | |
118 SkAutoTUnref<const GrGLInterface> gl(GrGLCreateNativeInterface()); | |
119 if (nullptr == gl.get()) { | |
120 SkDebugf("Could not create GL interface.\n"); | |
121 this->destroyGLContext(); | |
122 return; | |
123 } | |
124 if (!gl->validate()) { | |
125 SkDebugf("Could not validate GL interface.\n"); | |
126 this->destroyGLContext(); | |
127 return; | |
128 } | |
129 | |
130 this->init(gl.release()); | |
131 } | |
132 | |
133 WinGLTestContext::~WinGLTestContext() { | |
134 this->teardown(); | |
135 this->destroyGLContext(); | |
136 } | |
137 | |
138 void WinGLTestContext::destroyGLContext() { | |
139 SkSafeSetNull(fPbufferContext); | |
140 if (fGlRenderContext) { | |
141 wglDeleteContext(fGlRenderContext); | |
142 fGlRenderContext = 0; | |
143 } | |
144 if (fWindow && fDeviceContext) { | |
145 ReleaseDC(fWindow, fDeviceContext); | |
146 fDeviceContext = 0; | |
147 } | |
148 if (fWindow) { | |
149 DestroyWindow(fWindow); | |
150 fWindow = 0; | |
151 } | |
152 } | |
153 | |
154 void WinGLTestContext::onPlatformMakeCurrent() const { | |
155 HDC dc; | |
156 HGLRC glrc; | |
157 | |
158 if (nullptr == fPbufferContext) { | |
159 dc = fDeviceContext; | |
160 glrc = fGlRenderContext; | |
161 } else { | |
162 dc = fPbufferContext->getDC(); | |
163 glrc = fPbufferContext->getGLRC(); | |
164 } | |
165 | |
166 if (!wglMakeCurrent(dc, glrc)) { | |
167 SkDebugf("Could not create rendering context.\n"); | |
168 } | |
169 } | |
170 | |
171 void WinGLTestContext::onPlatformSwapBuffers() const { | |
172 HDC dc; | |
173 | |
174 if (nullptr == fPbufferContext) { | |
175 dc = fDeviceContext; | |
176 } else { | |
177 dc = fPbufferContext->getDC(); | |
178 } | |
179 if (!SwapBuffers(dc)) { | |
180 SkDebugf("Could not complete SwapBuffers.\n"); | |
181 } | |
182 } | |
183 | |
184 GrGLFuncPtr WinGLTestContext::onPlatformGetProcAddress(const char* name) const { | |
185 return reinterpret_cast<GrGLFuncPtr>(wglGetProcAddress(name)); | |
186 } | |
187 | |
188 } // anonymous namespace | |
189 | |
190 namespace sk_gpu_test { | |
191 GLTestContext* CreatePlatformGLTestContext(GrGLStandard forcedGpuAPI, | |
192 GLTestContext *shareContext) { | |
193 SkASSERT(!shareContext); | |
194 if (shareContext) { | |
195 return nullptr; | |
196 } | |
197 WinGLTestContext *ctx = new WinGLTestContext(forcedGpuAPI); | |
198 if (!ctx->isValid()) { | |
199 delete ctx; | |
200 return nullptr; | |
201 } | |
202 return ctx; | |
203 } | |
204 } // namespace sk_gpu_test | |
205 | |
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