Mercurial > hg > orthanc-stone
annotate Framework/Applications/Sdl/SdlEngine.cpp @ 40:7207a407bcd8
shared copyright with osimis
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 04 Jan 2017 16:37:42 +0100 |
| parents | ff1e935768e7 |
| children | 28956ed68280 |
| 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 | |
|
40
7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
|
5 * Copyright (C) 2017 Osimis, Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "SdlEngine.h" | |
| 35 | |
| 36 #if ORTHANC_ENABLE_SDL == 1 | |
| 37 | |
| 16 | 38 #include "../../../Resources/Orthanc/Core/Logging.h" |
| 0 | 39 |
| 40 #include <SDL.h> | |
| 41 | |
| 42 namespace OrthancStone | |
| 43 { | |
| 44 void SdlEngine::RenderFrame() | |
| 45 { | |
| 46 if (!viewportChanged_) | |
| 47 { | |
| 48 return; | |
| 49 } | |
| 50 | |
| 51 viewportChanged_ = false; | |
| 52 | |
| 53 if (buffering_.RenderOffscreen(viewport_)) | |
| 54 { | |
| 55 // Do not notify twice when a new frame was rendered, to avoid | |
| 56 // spoiling the SDL event queue | |
| 57 SDL_Event event; | |
| 58 SDL_memset(&event, 0, sizeof(event)); | |
| 59 event.type = refreshEvent_; | |
| 60 event.user.code = 0; | |
| 61 event.user.data1 = 0; | |
| 62 event.user.data2 = 0; | |
| 63 SDL_PushEvent(&event); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 | |
| 68 void SdlEngine::RenderThread(SdlEngine* that) | |
| 69 { | |
| 70 for (;;) | |
| 71 { | |
| 72 that->renderFrame_.Wait(); | |
| 73 | |
| 74 if (that->continue_) | |
| 75 { | |
| 76 that->RenderFrame(); | |
| 77 } | |
| 78 else | |
| 79 { | |
| 80 return; | |
| 81 } | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 | |
| 86 KeyboardModifiers SdlEngine::GetKeyboardModifiers(const uint8_t* keyboardState, | |
| 87 const int scancodeCount) | |
| 88 { | |
| 89 int result = KeyboardModifiers_None; | |
| 90 | |
| 91 if (keyboardState != NULL) | |
| 92 { | |
| 93 if (SDL_SCANCODE_LSHIFT < scancodeCount && | |
| 94 keyboardState[SDL_SCANCODE_LSHIFT]) | |
| 95 { | |
| 96 result |= KeyboardModifiers_Shift; | |
| 97 } | |
| 98 | |
| 99 if (SDL_SCANCODE_RSHIFT < scancodeCount && | |
| 100 keyboardState[SDL_SCANCODE_RSHIFT]) | |
| 101 { | |
| 102 result |= KeyboardModifiers_Shift; | |
| 103 } | |
| 104 | |
| 105 if (SDL_SCANCODE_LCTRL < scancodeCount && | |
| 106 keyboardState[SDL_SCANCODE_LCTRL]) | |
| 107 { | |
| 108 result |= KeyboardModifiers_Control; | |
| 109 } | |
| 110 | |
| 111 if (SDL_SCANCODE_RCTRL < scancodeCount && | |
| 112 keyboardState[SDL_SCANCODE_RCTRL]) | |
| 113 { | |
| 114 result |= KeyboardModifiers_Control; | |
| 115 } | |
| 116 | |
| 117 if (SDL_SCANCODE_LALT < scancodeCount && | |
| 118 keyboardState[SDL_SCANCODE_LALT]) | |
| 119 { | |
| 120 result |= KeyboardModifiers_Alt; | |
| 121 } | |
| 122 | |
| 123 if (SDL_SCANCODE_RALT < scancodeCount && | |
| 124 keyboardState[SDL_SCANCODE_RALT]) | |
| 125 { | |
| 126 result |= KeyboardModifiers_Alt; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 return static_cast<KeyboardModifiers>(result); | |
| 131 } | |
| 132 | |
| 133 | |
| 134 void SdlEngine::SetSize(unsigned int width, | |
| 135 unsigned int height) | |
| 136 { | |
| 137 buffering_.SetSize(width, height, viewport_); | |
| 138 viewportChanged_ = true; | |
| 139 Refresh(); | |
| 140 } | |
| 141 | |
| 142 | |
| 143 void SdlEngine::Stop() | |
| 144 { | |
| 145 if (continue_) | |
| 146 { | |
| 147 continue_ = false; | |
| 148 renderFrame_.Signal(); // Unlock the render thread | |
| 149 renderThread_.join(); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 | |
| 154 void SdlEngine::Refresh() | |
| 155 { | |
| 156 renderFrame_.Signal(); | |
| 157 } | |
| 158 | |
| 159 | |
| 160 SdlEngine::SdlEngine(SdlWindow& window, | |
| 161 IViewport& viewport) : | |
| 162 window_(window), | |
| 163 viewport_(viewport), | |
| 164 continue_(true) | |
| 165 { | |
| 166 refreshEvent_ = SDL_RegisterEvents(1); | |
| 167 | |
| 168 SetSize(window_.GetWidth(), window_.GetHeight()); | |
| 169 | |
| 170 viewport_.Register(*this); | |
| 171 | |
| 172 renderThread_ = boost::thread(RenderThread, this); | |
| 173 } | |
| 174 | |
| 175 | |
| 176 SdlEngine::~SdlEngine() | |
| 177 { | |
| 178 Stop(); | |
| 179 | |
| 180 viewport_.Unregister(*this); | |
| 181 } | |
| 182 | |
| 183 | |
| 184 void SdlEngine::Run() | |
| 185 { | |
| 186 int scancodeCount = 0; | |
| 187 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); | |
| 188 | |
| 189 bool stop = false; | |
| 190 while (!stop) | |
| 191 { | |
| 192 Refresh(); | |
| 193 | |
| 194 SDL_Event event; | |
| 195 | |
| 196 while (SDL_PollEvent(&event)) | |
| 197 { | |
| 198 if (event.type == SDL_QUIT) | |
| 199 { | |
| 200 stop = true; | |
| 201 break; | |
| 202 } | |
| 203 else if (event.type == refreshEvent_) | |
| 204 { | |
| 205 buffering_.SwapToScreen(window_); | |
| 206 } | |
| 207 else if (event.type == SDL_MOUSEBUTTONDOWN) | |
| 208 { | |
| 209 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 210 | |
| 211 switch (event.button.button) | |
| 212 { | |
| 213 case SDL_BUTTON_LEFT: | |
| 214 viewport_.MouseDown(MouseButton_Left, event.button.x, event.button.y, modifiers); | |
| 215 break; | |
| 216 | |
| 217 case SDL_BUTTON_RIGHT: | |
| 218 viewport_.MouseDown(MouseButton_Right, event.button.x, event.button.y, modifiers); | |
| 219 break; | |
| 220 | |
| 221 case SDL_BUTTON_MIDDLE: | |
| 222 viewport_.MouseDown(MouseButton_Middle, event.button.x, event.button.y, modifiers); | |
| 223 break; | |
| 224 | |
| 225 default: | |
| 226 break; | |
| 227 } | |
| 228 } | |
| 229 else if (event.type == SDL_MOUSEMOTION) | |
| 230 { | |
| 231 viewport_.MouseMove(event.button.x, event.button.y); | |
| 232 } | |
| 233 else if (event.type == SDL_MOUSEBUTTONUP) | |
| 234 { | |
| 235 viewport_.MouseUp(); | |
| 236 } | |
| 237 else if (event.type == SDL_WINDOWEVENT) | |
| 238 { | |
| 239 switch (event.window.event) | |
| 240 { | |
| 241 case SDL_WINDOWEVENT_LEAVE: | |
| 242 viewport_.MouseLeave(); | |
| 243 break; | |
| 244 | |
| 245 case SDL_WINDOWEVENT_ENTER: | |
| 246 viewport_.MouseEnter(); | |
| 247 break; | |
| 248 | |
| 249 case SDL_WINDOWEVENT_SIZE_CHANGED: | |
| 250 SetSize(event.window.data1, event.window.data2); | |
| 251 break; | |
| 252 | |
| 253 default: | |
| 254 break; | |
| 255 } | |
| 256 } | |
| 257 else if (event.type == SDL_MOUSEWHEEL) | |
| 258 { | |
| 259 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 260 | |
| 261 int x, y; | |
| 262 SDL_GetMouseState(&x, &y); | |
| 263 | |
| 264 if (event.wheel.y > 0) | |
| 265 { | |
| 266 viewport_.MouseWheel(MouseWheelDirection_Up, x, y, modifiers); | |
| 267 } | |
| 268 else if (event.wheel.y < 0) | |
| 269 { | |
| 270 viewport_.MouseWheel(MouseWheelDirection_Down, x, y, modifiers); | |
| 271 } | |
| 272 } | |
| 273 else if (event.type == SDL_KEYDOWN) | |
| 274 { | |
| 275 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); | |
| 276 | |
| 277 switch (event.key.keysym.sym) | |
| 278 { | |
| 279 case SDLK_a: viewport_.KeyPressed('a', modifiers); break; | |
| 280 case SDLK_b: viewport_.KeyPressed('b', modifiers); break; | |
| 281 case SDLK_c: viewport_.KeyPressed('c', modifiers); break; | |
| 282 case SDLK_d: viewport_.KeyPressed('d', modifiers); break; | |
| 283 case SDLK_e: viewport_.KeyPressed('e', modifiers); break; | |
| 284 case SDLK_f: window_.ToggleMaximize(); break; | |
| 285 case SDLK_g: viewport_.KeyPressed('g', modifiers); break; | |
| 286 case SDLK_h: viewport_.KeyPressed('h', modifiers); break; | |
| 287 case SDLK_i: viewport_.KeyPressed('i', modifiers); break; | |
| 288 case SDLK_j: viewport_.KeyPressed('j', modifiers); break; | |
| 289 case SDLK_k: viewport_.KeyPressed('k', modifiers); break; | |
| 290 case SDLK_l: viewport_.KeyPressed('l', modifiers); break; | |
| 291 case SDLK_m: viewport_.KeyPressed('m', modifiers); break; | |
| 292 case SDLK_n: viewport_.KeyPressed('n', modifiers); break; | |
| 293 case SDLK_o: viewport_.KeyPressed('o', modifiers); break; | |
| 294 case SDLK_p: viewport_.KeyPressed('p', modifiers); break; | |
| 295 case SDLK_q: stop = true; break; | |
| 296 case SDLK_r: viewport_.KeyPressed('r', modifiers); break; | |
| 297 case SDLK_s: viewport_.KeyPressed('s', modifiers); break; | |
| 298 case SDLK_t: viewport_.KeyPressed('t', modifiers); break; | |
| 299 case SDLK_u: viewport_.KeyPressed('u', modifiers); break; | |
| 300 case SDLK_v: viewport_.KeyPressed('v', modifiers); break; | |
| 301 case SDLK_w: viewport_.KeyPressed('w', modifiers); break; | |
| 302 case SDLK_x: viewport_.KeyPressed('x', modifiers); break; | |
| 303 case SDLK_y: viewport_.KeyPressed('y', modifiers); break; | |
| 304 case SDLK_z: viewport_.KeyPressed('z', modifiers); break; | |
| 305 | |
| 306 default: | |
| 307 break; | |
| 308 } | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 SDL_Delay(10); // Necessary for mouse wheel events to work | |
| 313 } | |
| 314 | |
| 315 Stop(); | |
| 316 } | |
| 317 | |
| 318 | |
| 319 void SdlEngine::GlobalInitialize() | |
| 320 { | |
| 321 SDL_Init(SDL_INIT_VIDEO); | |
| 322 } | |
| 323 | |
| 324 | |
| 325 void SdlEngine::GlobalFinalize() | |
| 326 { | |
| 327 SDL_Quit(); | |
| 328 } | |
| 329 } | |
| 330 | |
| 331 #endif |