Mercurial > hg > orthanc-stone
annotate Applications/Sdl/SdlEngine.cpp @ 53:c2dc924f1a63 wasm
removing threading out of the framework
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 27 Apr 2017 16:57:49 +0200 |
| parents | b340879da9bd |
| children | 9e3c2e75b870 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 8 * modify it under the terms of the GNU Affero General Public License |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 0 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "SdlEngine.h" | |
| 23 | |
| 24 #if ORTHANC_ENABLE_SDL == 1 | |
| 25 | |
| 16 | 26 #include "../../../Resources/Orthanc/Core/Logging.h" |
| 0 | 27 |
| 28 #include <SDL.h> | |
| 29 | |
| 30 namespace OrthancStone | |
| 31 { | |
| 32 void SdlEngine::RenderFrame() | |
| 33 { | |
| 34 if (!viewportChanged_) | |
| 35 { | |
| 36 return; | |
| 37 } | |
| 38 | |
| 39 viewportChanged_ = false; | |
| 40 | |
|
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41 bool updated; |
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42 |
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43 { |
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44 BasicApplicationContext::ViewportLocker locker(context_); |
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45 updated = buffering_.RenderOffscreen(locker.GetViewport()); |
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46 } |
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47 |
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48 if (updated) |
| 0 | 49 { |
| 50 // Do not notify twice when a new frame was rendered, to avoid | |
| 51 // spoiling the SDL event queue | |
| 52 SDL_Event event; | |
| 53 SDL_memset(&event, 0, sizeof(event)); | |
| 54 event.type = refreshEvent_; | |
| 55 event.user.code = 0; | |
| 56 event.user.data1 = 0; | |
| 57 event.user.data2 = 0; | |
| 58 SDL_PushEvent(&event); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 | |
| 63 void SdlEngine::RenderThread(SdlEngine* that) | |
| 64 { | |
| 65 for (;;) | |
| 66 { | |
| 67 that->renderFrame_.Wait(); | |
| 68 | |
| 69 if (that->continue_) | |
| 70 { | |
| 71 that->RenderFrame(); | |
| 72 } | |
| 73 else | |
| 74 { | |
| 75 return; | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 | |
| 81 KeyboardModifiers SdlEngine::GetKeyboardModifiers(const uint8_t* keyboardState, | |
| 82 const int scancodeCount) | |
| 83 { | |
| 84 int result = KeyboardModifiers_None; | |
| 85 | |
| 86 if (keyboardState != NULL) | |
| 87 { | |
| 88 if (SDL_SCANCODE_LSHIFT < scancodeCount && | |
| 89 keyboardState[SDL_SCANCODE_LSHIFT]) | |
| 90 { | |
| 91 result |= KeyboardModifiers_Shift; | |
| 92 } | |
| 93 | |
| 94 if (SDL_SCANCODE_RSHIFT < scancodeCount && | |
| 95 keyboardState[SDL_SCANCODE_RSHIFT]) | |
| 96 { | |
| 97 result |= KeyboardModifiers_Shift; | |
| 98 } | |
| 99 | |
| 100 if (SDL_SCANCODE_LCTRL < scancodeCount && | |
| 101 keyboardState[SDL_SCANCODE_LCTRL]) | |
| 102 { | |
| 103 result |= KeyboardModifiers_Control; | |
| 104 } | |
| 105 | |
| 106 if (SDL_SCANCODE_RCTRL < scancodeCount && | |
| 107 keyboardState[SDL_SCANCODE_RCTRL]) | |
| 108 { | |
| 109 result |= KeyboardModifiers_Control; | |
| 110 } | |
| 111 | |
| 112 if (SDL_SCANCODE_LALT < scancodeCount && | |
| 113 keyboardState[SDL_SCANCODE_LALT]) | |
| 114 { | |
| 115 result |= KeyboardModifiers_Alt; | |
| 116 } | |
| 117 | |
| 118 if (SDL_SCANCODE_RALT < scancodeCount && | |
| 119 keyboardState[SDL_SCANCODE_RALT]) | |
| 120 { | |
| 121 result |= KeyboardModifiers_Alt; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 return static_cast<KeyboardModifiers>(result); | |
| 126 } | |
| 127 | |
| 128 | |
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129 void SdlEngine::SetSize(BasicApplicationContext::ViewportLocker& locker, |
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130 unsigned int width, |
| 0 | 131 unsigned int height) |
| 132 { | |
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133 buffering_.SetSize(width, height, locker.GetViewport()); |
| 0 | 134 viewportChanged_ = true; |
| 135 Refresh(); | |
| 136 } | |
| 137 | |
| 138 | |
| 139 void SdlEngine::Stop() | |
| 140 { | |
| 141 if (continue_) | |
| 142 { | |
| 143 continue_ = false; | |
| 144 renderFrame_.Signal(); // Unlock the render thread | |
| 145 renderThread_.join(); | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 | |
| 150 void SdlEngine::Refresh() | |
| 151 { | |
| 152 renderFrame_.Signal(); | |
| 153 } | |
| 154 | |
| 155 | |
| 156 SdlEngine::SdlEngine(SdlWindow& window, | |
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157 BasicApplicationContext& context) : |
| 0 | 158 window_(window), |
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159 context_(context), |
| 0 | 160 continue_(true) |
| 161 { | |
| 162 refreshEvent_ = SDL_RegisterEvents(1); | |
| 163 | |
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164 { |
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165 BasicApplicationContext::ViewportLocker locker(context_); |
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166 SetSize(locker, window_.GetWidth(), window_.GetHeight()); |
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167 locker.GetViewport().Register(*this); |
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168 } |
| 0 | 169 |
| 170 renderThread_ = boost::thread(RenderThread, this); | |
| 171 } | |
| 172 | |
| 173 | |
| 174 SdlEngine::~SdlEngine() | |
| 175 { | |
| 176 Stop(); | |
| 177 | |
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178 { |
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179 BasicApplicationContext::ViewportLocker locker(context_); |
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180 locker.GetViewport().Unregister(*this); |
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181 } |
| 0 | 182 } |
| 183 | |
| 184 | |
| 185 void SdlEngine::Run() | |
| 186 { | |
| 187 int scancodeCount = 0; | |
| 188 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); | |
| 189 | |
| 190 bool stop = false; | |
| 191 while (!stop) | |
| 192 { | |
| 193 Refresh(); | |
| 194 | |
| 195 SDL_Event event; | |
| 196 | |
| 197 while (SDL_PollEvent(&event)) | |
| 198 { | |
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199 BasicApplicationContext::ViewportLocker locker(context_); |
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200 |
| 0 | 201 if (event.type == SDL_QUIT) |
| 202 { | |
| 203 stop = true; | |
| 204 break; | |
| 205 } | |
| 206 else if (event.type == refreshEvent_) | |
| 207 { | |
| 208 buffering_.SwapToScreen(window_); | |
| 209 } | |
| 210 else if (event.type == SDL_MOUSEBUTTONDOWN) | |
| 211 { | |
| 212 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 213 | |
| 214 switch (event.button.button) | |
| 215 { | |
| 216 case SDL_BUTTON_LEFT: | |
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217 locker.GetViewport().MouseDown(MouseButton_Left, event.button.x, event.button.y, modifiers); |
| 0 | 218 break; |
| 219 | |
| 220 case SDL_BUTTON_RIGHT: | |
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221 locker.GetViewport().MouseDown(MouseButton_Right, event.button.x, event.button.y, modifiers); |
| 0 | 222 break; |
| 223 | |
| 224 case SDL_BUTTON_MIDDLE: | |
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225 locker.GetViewport().MouseDown(MouseButton_Middle, event.button.x, event.button.y, modifiers); |
| 0 | 226 break; |
| 227 | |
| 228 default: | |
| 229 break; | |
| 230 } | |
| 231 } | |
| 232 else if (event.type == SDL_MOUSEMOTION) | |
| 233 { | |
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234 locker.GetViewport().MouseMove(event.button.x, event.button.y); |
| 0 | 235 } |
| 236 else if (event.type == SDL_MOUSEBUTTONUP) | |
| 237 { | |
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238 locker.GetViewport().MouseUp(); |
| 0 | 239 } |
| 240 else if (event.type == SDL_WINDOWEVENT) | |
| 241 { | |
| 242 switch (event.window.event) | |
| 243 { | |
| 244 case SDL_WINDOWEVENT_LEAVE: | |
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245 locker.GetViewport().MouseLeave(); |
| 0 | 246 break; |
| 247 | |
| 248 case SDL_WINDOWEVENT_ENTER: | |
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249 locker.GetViewport().MouseEnter(); |
| 0 | 250 break; |
| 251 | |
| 252 case SDL_WINDOWEVENT_SIZE_CHANGED: | |
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253 SetSize(locker, event.window.data1, event.window.data2); |
| 0 | 254 break; |
| 255 | |
| 256 default: | |
| 257 break; | |
| 258 } | |
| 259 } | |
| 260 else if (event.type == SDL_MOUSEWHEEL) | |
| 261 { | |
| 262 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 263 | |
| 264 int x, y; | |
| 265 SDL_GetMouseState(&x, &y); | |
| 266 | |
| 267 if (event.wheel.y > 0) | |
| 268 { | |
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269 locker.GetViewport().MouseWheel(MouseWheelDirection_Up, x, y, modifiers); |
| 0 | 270 } |
| 271 else if (event.wheel.y < 0) | |
| 272 { | |
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273 locker.GetViewport().MouseWheel(MouseWheelDirection_Down, x, y, modifiers); |
| 0 | 274 } |
| 275 } | |
| 276 else if (event.type == SDL_KEYDOWN) | |
| 277 { | |
| 278 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 279 | |
| 280 switch (event.key.keysym.sym) | |
| 281 { | |
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282 case SDLK_a: locker.GetViewport().KeyPressed('a', modifiers); break; |
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283 case SDLK_b: locker.GetViewport().KeyPressed('b', modifiers); break; |
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284 case SDLK_c: locker.GetViewport().KeyPressed('c', modifiers); break; |
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285 case SDLK_d: locker.GetViewport().KeyPressed('d', modifiers); break; |
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286 case SDLK_e: locker.GetViewport().KeyPressed('e', modifiers); break; |
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287 case SDLK_f: window_.ToggleMaximize(); break; |
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288 case SDLK_g: locker.GetViewport().KeyPressed('g', modifiers); break; |
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289 case SDLK_h: locker.GetViewport().KeyPressed('h', modifiers); break; |
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290 case SDLK_i: locker.GetViewport().KeyPressed('i', modifiers); break; |
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291 case SDLK_j: locker.GetViewport().KeyPressed('j', modifiers); break; |
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292 case SDLK_k: locker.GetViewport().KeyPressed('k', modifiers); break; |
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293 case SDLK_l: locker.GetViewport().KeyPressed('l', modifiers); break; |
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294 case SDLK_m: locker.GetViewport().KeyPressed('m', modifiers); break; |
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295 case SDLK_n: locker.GetViewport().KeyPressed('n', modifiers); break; |
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296 case SDLK_o: locker.GetViewport().KeyPressed('o', modifiers); break; |
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297 case SDLK_p: locker.GetViewport().KeyPressed('p', modifiers); break; |
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298 case SDLK_q: stop = true; break; |
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299 case SDLK_r: locker.GetViewport().KeyPressed('r', modifiers); break; |
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300 case SDLK_s: locker.GetViewport().KeyPressed('s', modifiers); break; |
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301 case SDLK_t: locker.GetViewport().KeyPressed('t', modifiers); break; |
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302 case SDLK_u: locker.GetViewport().KeyPressed('u', modifiers); break; |
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303 case SDLK_v: locker.GetViewport().KeyPressed('v', modifiers); break; |
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304 case SDLK_w: locker.GetViewport().KeyPressed('w', modifiers); break; |
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305 case SDLK_x: locker.GetViewport().KeyPressed('x', modifiers); break; |
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306 case SDLK_y: locker.GetViewport().KeyPressed('y', modifiers); break; |
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307 case SDLK_z: locker.GetViewport().KeyPressed('z', modifiers); break; |
| 0 | 308 |
| 309 default: | |
| 310 break; | |
| 311 } | |
| 312 } | |
| 313 } | |
| 314 | |
| 315 SDL_Delay(10); // Necessary for mouse wheel events to work | |
| 316 } | |
| 317 | |
| 318 Stop(); | |
| 319 } | |
| 320 | |
| 321 | |
| 322 void SdlEngine::GlobalInitialize() | |
| 323 { | |
| 324 SDL_Init(SDL_INIT_VIDEO); | |
| 325 } | |
| 326 | |
| 327 | |
| 328 void SdlEngine::GlobalFinalize() | |
| 329 { | |
| 330 SDL_Quit(); | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 #endif |