1#include "sdl-events.h"
  2
  3#include "debugger/debugger.h"
  4#include "gba-io.h"
  5#include "gba-rr.h"
  6#include "gba-serialize.h"
  7#include "gba-video.h"
  8
  9#if SDL_VERSION_ATLEAST(2, 0, 0) && defined(__APPLE__)
 10#define GUI_MOD KMOD_GUI
 11#else
 12#define GUI_MOD KMOD_CTRL
 13#endif
 14
 15bool GBASDLInitEvents(struct GBASDLEvents* context) {
 16	if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0) {
 17		return false;
 18	}
 19	SDL_JoystickEventState(SDL_ENABLE);
 20	context->joystick = SDL_JoystickOpen(0);
 21#if !SDL_VERSION_ATLEAST(2, 0, 0)
 22	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
 23#endif
 24	return true;
 25}
 26
 27void GBASDLDeinitEvents(struct GBASDLEvents* context) {
 28	SDL_JoystickClose(context->joystick);
 29	SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
 30}
 31
 32enum GBAKey GBASDLMapButtonToKey(int button) {
 33	// Sorry, hardcoded to my gamepad for now
 34	switch (button) {
 35	case 2:
 36		return GBA_KEY_A;
 37	case 1:
 38		return GBA_KEY_B;
 39	case 6:
 40		return GBA_KEY_L;
 41	case 7:
 42		return GBA_KEY_R;
 43	case 8:
 44		return GBA_KEY_START;
 45	case 9:
 46		return GBA_KEY_SELECT;
 47	default:
 48		return GBA_KEY_NONE;
 49	}
 50}
 51
 52static void _pauseAfterFrame(struct GBAThread* context) {
 53	context->frameCallback = 0;
 54	GBAThreadPause(context);
 55}
 56
 57static void _GBASDLHandleKeypress(struct GBAThread* context, struct GBASDLEvents* sdlContext, const struct SDL_KeyboardEvent* event) {
 58	enum GBAKey key = 0;
 59	switch (event->keysym.sym) {
 60	case SDLK_z:
 61		key = GBA_KEY_A;
 62		break;
 63	case SDLK_x:
 64		key = GBA_KEY_B;
 65		break;
 66	case SDLK_a:
 67		key = GBA_KEY_L;
 68		break;
 69	case SDLK_s:
 70		key = GBA_KEY_R;
 71		break;
 72	case SDLK_RETURN:
 73		key = GBA_KEY_START;
 74		break;
 75	case SDLK_BACKSPACE:
 76		key = GBA_KEY_SELECT;
 77		break;
 78	case SDLK_UP:
 79		key = GBA_KEY_UP;
 80		break;
 81	case SDLK_DOWN:
 82		key = GBA_KEY_DOWN;
 83		break;
 84	case SDLK_LEFT:
 85		key = GBA_KEY_LEFT;
 86		break;
 87	case SDLK_RIGHT:
 88		key = GBA_KEY_RIGHT;
 89		break;
 90	case SDLK_F11:
 91		if (event->type == SDL_KEYDOWN && context->debugger) {
 92			ARMDebuggerEnter(context->debugger, DEBUGGER_ENTER_MANUAL);
 93		}
 94		return;
 95	case SDLK_TAB:
 96		context->sync.audioWait = event->type != SDL_KEYDOWN;
 97		return;
 98	case SDLK_LEFTBRACKET:
 99		GBAThreadInterrupt(context);
100		GBARewind(context, 10);
101		GBAThreadContinue(context);
102		return;
103	case SDLK_ESCAPE:
104		GBAThreadInterrupt(context);
105		GBARRStopPlaying(context->gba);
106		GBARRStopRecording(context->gba);
107		GBAThreadContinue(context);
108		return;
109	default:
110		if (event->type == SDL_KEYDOWN) {
111			if (event->keysym.mod & GUI_MOD) {
112				switch (event->keysym.sym) {
113#if SDL_VERSION_ATLEAST(2, 0, 0)
114				case SDLK_f:
115					SDL_SetWindowFullscreen(sdlContext->window, sdlContext->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP);
116					sdlContext->fullscreen = !sdlContext->fullscreen;
117					sdlContext->windowUpdated = 1;
118					break;
119#endif
120				case SDLK_p:
121					GBAThreadTogglePause(context);
122					break;
123				case SDLK_n:
124					GBAThreadPause(context);
125					context->frameCallback = _pauseAfterFrame;
126					GBAThreadUnpause(context);
127					break;
128				case SDLK_r:
129					GBAThreadReset(context);
130					break;
131				case SDLK_t:
132					GBAThreadReset(context);
133					GBAThreadInterrupt(context);
134					GBARRStopPlaying(context->gba);
135					GBARRStartRecording(context->gba);
136					GBAThreadContinue(context);
137					break;
138				case SDLK_y:
139					GBAThreadReset(context);
140					GBAThreadInterrupt(context);
141					GBARRStopRecording(context->gba);
142					GBARRStartPlaying(context->gba);
143					GBAThreadContinue(context);
144					break;
145				default:
146					break;
147				}
148			}
149			if (event->keysym.mod & KMOD_SHIFT) {
150				switch (event->keysym.sym) {
151				case SDLK_F1:
152				case SDLK_F2:
153				case SDLK_F3:
154				case SDLK_F4:
155				case SDLK_F5:
156				case SDLK_F6:
157				case SDLK_F7:
158				case SDLK_F8:
159				case SDLK_F9:
160				case SDLK_F10:
161					GBAThreadInterrupt(context);
162					GBASaveState(context->gba, event->keysym.sym - SDLK_F1);
163					GBAThreadContinue(context);
164					break;
165				default:
166					break;
167				}
168			} else {
169				switch (event->keysym.sym) {
170				case SDLK_F1:
171				case SDLK_F2:
172				case SDLK_F3:
173				case SDLK_F4:
174				case SDLK_F5:
175				case SDLK_F6:
176				case SDLK_F7:
177				case SDLK_F8:
178				case SDLK_F9:
179				case SDLK_F10:
180					GBAThreadInterrupt(context);
181					GBALoadState(context->gba, event->keysym.sym - SDLK_F1);
182					GBAThreadContinue(context);
183					break;
184				default:
185					break;
186				}
187			}
188		}
189		return;
190	}
191
192	if (event->type == SDL_KEYDOWN) {
193		context->activeKeys |= 1 << key;
194	} else {
195		context->activeKeys &= ~(1 << key);
196	}
197}
198
199static void _GBASDLHandleJoyButton(struct GBAThread* context, const struct SDL_JoyButtonEvent* event) {
200	enum GBAKey key = 0;
201	key = GBASDLMapButtonToKey(event->button);
202	if (key == GBA_KEY_NONE) {
203		return;
204	}
205
206	if (event->type == SDL_JOYBUTTONDOWN) {
207		context->activeKeys |= 1 << key;
208	} else {
209		context->activeKeys &= ~(1 << key);
210	}
211}
212
213static void _GBASDLHandleJoyHat(struct GBAThread* context, const struct SDL_JoyHatEvent* event) {
214	enum GBAKey key = 0;
215
216	if (event->value & SDL_HAT_UP) {
217		key |= 1 << GBA_KEY_UP;
218	}
219	if (event->value & SDL_HAT_LEFT) {
220		key |= 1 << GBA_KEY_LEFT;
221	}
222	if (event->value & SDL_HAT_DOWN) {
223		key |= 1 << GBA_KEY_DOWN;
224	}
225	if (event->value & SDL_HAT_RIGHT) {
226		key |= 1 << GBA_KEY_RIGHT;
227	}
228
229	context->activeKeys &= ~((1 << GBA_KEY_UP) | (1 << GBA_KEY_LEFT) | (1 << GBA_KEY_DOWN) | (1 << GBA_KEY_RIGHT));
230	context->activeKeys |= key;
231}
232
233#if SDL_VERSION_ATLEAST(2, 0, 0)
234static void _GBASDLHandleWindowEvent(struct GBAThread* context, struct GBASDLEvents* sdlContext, const struct SDL_WindowEvent* event) {
235	UNUSED(context);
236	switch (event->event) {
237	case SDL_WINDOWEVENT_SIZE_CHANGED:
238		sdlContext->windowUpdated = 1;
239		break;
240	}
241}
242#endif
243
244void GBASDLHandleEvent(struct GBAThread* context, struct GBASDLEvents* sdlContext, const union SDL_Event* event) {
245	switch (event->type) {
246	case SDL_QUIT:
247		// FIXME: this isn't thread-safe
248		if (context->debugger) {
249			context->debugger->state = DEBUGGER_EXITING;
250		}
251		MutexLock(&context->stateMutex);
252		context->state = THREAD_EXITING;
253		ConditionWake(&context->stateCond);
254		MutexUnlock(&context->stateMutex);
255		break;
256#if SDL_VERSION_ATLEAST(2, 0, 0)
257	case SDL_WINDOWEVENT:
258		_GBASDLHandleWindowEvent(context, sdlContext, &event->window);
259		break;
260#endif
261	case SDL_KEYDOWN:
262	case SDL_KEYUP:
263		_GBASDLHandleKeypress(context, sdlContext, &event->key);
264		break;
265	case SDL_JOYBUTTONDOWN:
266	case SDL_JOYBUTTONUP:
267		_GBASDLHandleJoyButton(context, &event->jbutton);
268		break;
269	case SDL_JOYHATMOTION:
270		_GBASDLHandleJoyHat(context, &event->jhat);
271	}
272}