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