src/platform/sdl/sdl-events.c (view raw)
1/* Copyright (c) 2013-2014 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6#include "sdl-events.h"
7
8#include "debugger/debugger.h"
9#include "gba/io.h"
10#include "gba/supervisor/rr.h"
11#include "gba/serialize.h"
12#include "gba/video.h"
13#include "gba/renderers/video-software.h"
14#include "util/configuration.h"
15#include "util/vfs.h"
16
17#if SDL_VERSION_ATLEAST(2, 0, 0) && defined(__APPLE__)
18#define GUI_MOD KMOD_GUI
19#else
20#define GUI_MOD KMOD_CTRL
21#endif
22
23bool GBASDLInitEvents(struct GBASDLEvents* context) {
24 if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0) {
25 return false;
26 }
27
28 SDL_JoystickEventState(SDL_ENABLE);
29 int nJoysticks = SDL_NumJoysticks();
30 if (nJoysticks > 0) {
31 context->nJoysticks = nJoysticks;
32 context->joysticks = calloc(context->nJoysticks, sizeof(SDL_Joystick*));
33 size_t i;
34 for (i = 0; i < context->nJoysticks; ++i) {
35 context->joysticks[i] = SDL_JoystickOpen(i);
36 }
37 } else {
38 context->nJoysticks = 0;
39 context->joysticks = 0;
40 }
41
42 context->playersAttached = 0;
43
44 size_t i;
45 for (i = 0; i < MAX_PLAYERS; ++i) {
46 context->preferredJoysticks[i] = 0;
47 context->joysticksClaimed[i] = SIZE_MAX;
48 }
49
50#if !SDL_VERSION_ATLEAST(2, 0, 0)
51 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
52#endif
53 return true;
54}
55
56void GBASDLDeinitEvents(struct GBASDLEvents* context) {
57 size_t i;
58 for (i = 0; i < context->nJoysticks; ++i) {
59 SDL_JoystickClose(context->joysticks[i]);
60 }
61
62 SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
63}
64
65void GBASDLEventsLoadConfig(struct GBASDLEvents* context, const struct Configuration* config) {
66 context->preferredJoysticks[0] = GBAInputGetPreferredDevice(config, SDL_BINDING_BUTTON, 0);
67 context->preferredJoysticks[1] = GBAInputGetPreferredDevice(config, SDL_BINDING_BUTTON, 1);
68 context->preferredJoysticks[2] = GBAInputGetPreferredDevice(config, SDL_BINDING_BUTTON, 2);
69 context->preferredJoysticks[3] = GBAInputGetPreferredDevice(config, SDL_BINDING_BUTTON, 3);
70}
71
72void GBASDLInitBindings(struct GBAInputMap* inputMap) {
73#ifdef BUILD_PANDORA
74 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_PAGEDOWN, GBA_KEY_A);
75 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_END, GBA_KEY_B);
76 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_RSHIFT, GBA_KEY_L);
77 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_RCTRL, GBA_KEY_R);
78 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_LALT, GBA_KEY_START);
79 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_LCTRL, GBA_KEY_SELECT);
80 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_UP, GBA_KEY_UP);
81 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_DOWN, GBA_KEY_DOWN);
82 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_LEFT, GBA_KEY_LEFT);
83 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_RIGHT, GBA_KEY_RIGHT);
84#elif SDL_VERSION_ATLEAST(2, 0, 0)
85 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_X, GBA_KEY_A);
86 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_Z, GBA_KEY_B);
87 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_A, GBA_KEY_L);
88 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_S, GBA_KEY_R);
89 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_RETURN, GBA_KEY_START);
90 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_BACKSPACE, GBA_KEY_SELECT);
91 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_UP, GBA_KEY_UP);
92 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_DOWN, GBA_KEY_DOWN);
93 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_LEFT, GBA_KEY_LEFT);
94 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDL_SCANCODE_RIGHT, GBA_KEY_RIGHT);
95#else
96 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_x, GBA_KEY_A);
97 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_z, GBA_KEY_B);
98 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_a, GBA_KEY_L);
99 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_s, GBA_KEY_R);
100 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_RETURN, GBA_KEY_START);
101 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_BACKSPACE, GBA_KEY_SELECT);
102 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_UP, GBA_KEY_UP);
103 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_DOWN, GBA_KEY_DOWN);
104 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_LEFT, GBA_KEY_LEFT);
105 GBAInputBindKey(inputMap, SDL_BINDING_KEY, SDLK_RIGHT, GBA_KEY_RIGHT);
106#endif
107
108 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 13, GBA_KEY_A);
109 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 14, GBA_KEY_B);
110 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 10, GBA_KEY_L);
111 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 11, GBA_KEY_R);
112 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 3, GBA_KEY_START);
113 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 0, GBA_KEY_SELECT);
114 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 4, GBA_KEY_UP);
115 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 6, GBA_KEY_DOWN);
116 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 7, GBA_KEY_LEFT);
117 GBAInputBindKey(inputMap, SDL_BINDING_BUTTON, 5, GBA_KEY_RIGHT);
118
119 struct GBAAxis description = { GBA_KEY_RIGHT, GBA_KEY_LEFT, 0x4000, -0x4000 };
120 GBAInputBindAxis(inputMap, SDL_BINDING_BUTTON, 0, &description);
121 description = (struct GBAAxis) { GBA_KEY_DOWN, GBA_KEY_UP, 0x4000, -0x4000 };
122 GBAInputBindAxis(inputMap, SDL_BINDING_BUTTON, 1, &description);
123}
124
125bool GBASDLAttachPlayer(struct GBASDLEvents* events, struct GBASDLPlayer* player) {
126 player->joystick = 0;
127 player->joystickIndex = SIZE_MAX;
128
129 if (events->playersAttached >= MAX_PLAYERS) {
130 return false;
131 }
132
133 player->playerId = events->playersAttached;
134 size_t firstUnclaimed = SIZE_MAX;
135
136 size_t i;
137 for (i = 0; i < events->nJoysticks; ++i) {
138 bool claimed = false;
139
140 int p;
141 for (p = 0; p < events->playersAttached; ++p) {
142 if (events->joysticksClaimed[p] == i) {
143 claimed = true;
144 break;
145 }
146 }
147 if (claimed) {
148 continue;
149 }
150
151 if (firstUnclaimed == SIZE_MAX) {
152 firstUnclaimed = i;
153 }
154
155 const char* joystickName;
156#if SDL_VERSION_ATLEAST(2, 0, 0)
157 joystickName = SDL_JoystickName(events->joysticks[i]);
158#else
159 joystickName = SDL_JoystickName(SDL_JoystickIndex(events->joysticks[i]));
160#endif
161 if (events->preferredJoysticks[player->playerId] && strcmp(events->preferredJoysticks[player->playerId], joystickName) == 0) {
162 player->joystickIndex = i;
163 break;
164 }
165 }
166
167 if (player->joystickIndex == SIZE_MAX && firstUnclaimed != SIZE_MAX) {
168 player->joystickIndex = firstUnclaimed;
169 }
170
171 if (player->joystickIndex != SIZE_MAX) {
172 player->joystick = events->joysticks[player->joystickIndex];
173 events->joysticksClaimed[player->playerId] = player->joystickIndex;
174 }
175
176 ++events->playersAttached;
177 return true;
178}
179
180void GBASDLPlayerLoadConfig(struct GBASDLPlayer* context, const struct Configuration* config) {
181 GBAInputMapLoad(context->bindings, SDL_BINDING_KEY, config);
182 if (context->joystick) {
183 GBAInputMapLoad(context->bindings, SDL_BINDING_BUTTON, config);
184#if SDL_VERSION_ATLEAST(2, 0, 0)
185 GBAInputProfileLoad(context->bindings, SDL_BINDING_BUTTON, config, SDL_JoystickName(context->joystick));
186#else
187 GBAInputProfileLoad(context->bindings, SDL_BINDING_BUTTON, config, SDL_JoystickName(SDL_JoystickIndex(context->joystick)));
188#endif
189 }
190}
191
192void GBASDLPlayerChangeJoystick(struct GBASDLEvents* events, struct GBASDLPlayer* player, size_t index) {
193 if (player->playerId > MAX_PLAYERS || index >= events->nJoysticks) {
194 return;
195 }
196 events->joysticksClaimed[player->playerId] = index;
197 player->joystickIndex = index;
198 player->joystick = events->joysticks[index];
199}
200
201static void _pauseAfterFrame(struct GBAThread* context) {
202 context->frameCallback = 0;
203 GBAThreadPauseFromThread(context);
204}
205
206static void _GBASDLHandleKeypress(struct GBAThread* context, struct GBASDLPlayer* sdlContext, const struct SDL_KeyboardEvent* event) {
207 enum GBAKey key = GBA_KEY_NONE;
208 if (!event->keysym.mod) {
209#if !defined(BUILD_PANDORA) && SDL_VERSION_ATLEAST(2, 0, 0)
210 key = GBAInputMapKey(sdlContext->bindings, SDL_BINDING_KEY, event->keysym.scancode);
211#else
212 key = GBAInputMapKey(sdlContext->bindings, SDL_BINDING_KEY, event->keysym.sym);
213#endif
214 }
215 if (key != GBA_KEY_NONE) {
216 if (event->type == SDL_KEYDOWN) {
217 context->activeKeys |= 1 << key;
218 } else {
219 context->activeKeys &= ~(1 << key);
220 }
221 return;
222 }
223 if (event->keysym.sym == SDLK_TAB) {
224 context->sync.audioWait = event->type != SDL_KEYDOWN;
225 return;
226 }
227 if (event->type == SDL_KEYDOWN) {
228 switch (event->keysym.sym) {
229 case SDLK_F11:
230 if (context->debugger) {
231 ARMDebuggerEnter(context->debugger, DEBUGGER_ENTER_MANUAL, 0);
232 }
233 return;
234#ifdef USE_PNG
235 case SDLK_F12:
236 GBAThreadInterrupt(context);
237 GBAThreadTakeScreenshot(context);
238 GBAThreadContinue(context);
239 return;
240#endif
241 case SDLK_BACKSLASH:
242 GBAThreadPause(context);
243 context->frameCallback = _pauseAfterFrame;
244 GBAThreadUnpause(context);
245 return;
246 case SDLK_BACKQUOTE:
247 GBAThreadInterrupt(context);
248 GBARewind(context, 10);
249 GBAThreadContinue(context);
250 return;
251#ifdef BUILD_PANDORA
252 case SDLK_ESCAPE:
253 GBAThreadEnd(context);
254 return;
255#endif
256 default:
257 if ((event->keysym.mod & GUI_MOD) && (event->keysym.mod & GUI_MOD) == event->keysym.mod) {
258 switch (event->keysym.sym) {
259#if SDL_VERSION_ATLEAST(2, 0, 0)
260 case SDLK_f:
261 SDL_SetWindowFullscreen(sdlContext->window, sdlContext->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP);
262 sdlContext->fullscreen = !sdlContext->fullscreen;
263 sdlContext->windowUpdated = 1;
264 break;
265#endif
266 case SDLK_p:
267 GBAThreadTogglePause(context);
268 break;
269 case SDLK_n:
270 GBAThreadPause(context);
271 context->frameCallback = _pauseAfterFrame;
272 GBAThreadUnpause(context);
273 break;
274 case SDLK_r:
275 GBAThreadReset(context);
276 break;
277 default:
278 break;
279 }
280 }
281 if (event->keysym.mod & KMOD_SHIFT) {
282 switch (event->keysym.sym) {
283 case SDLK_F1:
284 case SDLK_F2:
285 case SDLK_F3:
286 case SDLK_F4:
287 case SDLK_F5:
288 case SDLK_F6:
289 case SDLK_F7:
290 case SDLK_F8:
291 case SDLK_F9:
292 GBAThreadInterrupt(context);
293 GBASaveState(context, context->stateDir, event->keysym.sym - SDLK_F1 + 1, true);
294 GBAThreadContinue(context);
295 break;
296 default:
297 break;
298 }
299 } else {
300 switch (event->keysym.sym) {
301 case SDLK_F1:
302 case SDLK_F2:
303 case SDLK_F3:
304 case SDLK_F4:
305 case SDLK_F5:
306 case SDLK_F6:
307 case SDLK_F7:
308 case SDLK_F8:
309 case SDLK_F9:
310 GBAThreadInterrupt(context);
311 GBALoadState(context, context->stateDir, event->keysym.sym - SDLK_F1 + 1);
312 GBAThreadContinue(context);
313 break;
314 default:
315 break;
316 }
317 }
318 return;
319 }
320 }
321}
322
323static void _GBASDLHandleJoyButton(struct GBAThread* context, struct GBASDLPlayer* sdlContext, const struct SDL_JoyButtonEvent* event) {
324 enum GBAKey key = 0;
325 key = GBAInputMapKey(sdlContext->bindings, SDL_BINDING_BUTTON, event->button);
326 if (key == GBA_KEY_NONE) {
327 return;
328 }
329
330 if (event->type == SDL_JOYBUTTONDOWN) {
331 context->activeKeys |= 1 << key;
332 } else {
333 context->activeKeys &= ~(1 << key);
334 }
335}
336
337static void _GBASDLHandleJoyHat(struct GBAThread* context, const struct SDL_JoyHatEvent* event) {
338 enum GBAKey key = 0;
339
340 if (event->value & SDL_HAT_UP) {
341 key |= 1 << GBA_KEY_UP;
342 }
343 if (event->value & SDL_HAT_LEFT) {
344 key |= 1 << GBA_KEY_LEFT;
345 }
346 if (event->value & SDL_HAT_DOWN) {
347 key |= 1 << GBA_KEY_DOWN;
348 }
349 if (event->value & SDL_HAT_RIGHT) {
350 key |= 1 << GBA_KEY_RIGHT;
351 }
352
353 context->activeKeys &= ~((1 << GBA_KEY_UP) | (1 << GBA_KEY_LEFT) | (1 << GBA_KEY_DOWN) | (1 << GBA_KEY_RIGHT));
354 context->activeKeys |= key;
355}
356
357static void _GBASDLHandleJoyAxis(struct GBAThread* context, struct GBASDLPlayer* sdlContext, const struct SDL_JoyAxisEvent* event) {
358 int keys = context->activeKeys;
359
360 keys = GBAInputClearAxis(sdlContext->bindings, SDL_BINDING_BUTTON, event->axis, keys);
361 enum GBAKey key = GBAInputMapAxis(sdlContext->bindings, SDL_BINDING_BUTTON, event->axis, event->value);
362 if (key != GBA_KEY_NONE) {
363 keys |= 1 << key;
364 }
365
366 context->activeKeys = keys;
367}
368
369#if SDL_VERSION_ATLEAST(2, 0, 0)
370static void _GBASDLHandleWindowEvent(struct GBAThread* context, struct GBASDLPlayer* sdlContext, const struct SDL_WindowEvent* event) {
371 UNUSED(context);
372 switch (event->event) {
373 case SDL_WINDOWEVENT_SIZE_CHANGED:
374 sdlContext->windowUpdated = 1;
375 break;
376 }
377}
378#endif
379
380void GBASDLHandleEvent(struct GBAThread* context, struct GBASDLPlayer* sdlContext, const union SDL_Event* event) {
381 switch (event->type) {
382 case SDL_QUIT:
383 GBAThreadEnd(context);
384 break;
385#if SDL_VERSION_ATLEAST(2, 0, 0)
386 case SDL_WINDOWEVENT:
387 _GBASDLHandleWindowEvent(context, sdlContext, &event->window);
388 break;
389#endif
390 case SDL_KEYDOWN:
391 case SDL_KEYUP:
392 _GBASDLHandleKeypress(context, sdlContext, &event->key);
393 break;
394 case SDL_JOYBUTTONDOWN:
395 case SDL_JOYBUTTONUP:
396 _GBASDLHandleJoyButton(context, sdlContext, &event->jbutton);
397 break;
398 case SDL_JOYHATMOTION:
399 _GBASDLHandleJoyHat(context, &event->jhat);
400 break;
401 case SDL_JOYAXISMOTION:
402 _GBASDLHandleJoyAxis(context, sdlContext, &event->jaxis);
403 break;
404 }
405}