1#include "sdl-events.h"
  2
  3#include "debugger.h"
  4#include "gba-io.h"
  5#include "gba-video.h"
  6
  7int GBASDLInitEvents() {
  8	if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0) {
  9		return 0;
 10	}
 11	SDL_JoystickEventState(SDL_ENABLE);
 12	SDL_JoystickOpen(0);
 13	return 1;
 14}
 15
 16void GBASDLDeinitEvents() {
 17	SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
 18}
 19
 20static void _GBASDLHandleKeypress(struct GBAThread* context, const struct SDL_KeyboardEvent* event) {
 21	enum GBAKey key = 0;
 22	switch (event->keysym.sym) {
 23	case SDLK_z:
 24		key = GBA_KEY_A;
 25		break;
 26	case SDLK_x:
 27		key = GBA_KEY_B;
 28		break;
 29	case SDLK_a:
 30		key = GBA_KEY_L;
 31		break;
 32	case SDLK_s:
 33		key = GBA_KEY_R;
 34		break;
 35	case SDLK_RETURN:
 36		key = GBA_KEY_START;
 37		break;
 38	case SDLK_BACKSPACE:
 39		key = GBA_KEY_SELECT;
 40		break;
 41	case SDLK_UP:
 42		key = GBA_KEY_UP;
 43		break;
 44	case SDLK_DOWN:
 45		key = GBA_KEY_DOWN;
 46		break;
 47	case SDLK_LEFT:
 48		key = GBA_KEY_LEFT;
 49		break;
 50	case SDLK_RIGHT:
 51		key = GBA_KEY_RIGHT;
 52		break;
 53	case SDLK_TAB:
 54		context->renderer->turbo = !context->renderer->turbo;
 55		return;
 56	default:
 57		return;
 58	}
 59
 60	if (event->type == SDL_KEYDOWN) {
 61		context->activeKeys |= 1 << key;
 62	} else {
 63		context->activeKeys &= ~(1 << key);
 64	}
 65}
 66
 67static void _GBASDLHandleJoyButton(struct GBAThread* context, const struct SDL_JoyButtonEvent* event) {
 68	enum GBAKey key = 0;
 69	// Sorry, hardcoded to my gamepad for now
 70	switch (event->button) {
 71	case 2:
 72		key = GBA_KEY_A;
 73		break;
 74	case 1:
 75		key = GBA_KEY_B;
 76		break;
 77	case 6:
 78		key = GBA_KEY_L;
 79		break;
 80	case 7:
 81		key = GBA_KEY_R;
 82		break;
 83	case 8:
 84		key = GBA_KEY_START;
 85		break;
 86	case 9:
 87		key = GBA_KEY_SELECT;
 88		break;
 89	default:
 90		return;
 91	}
 92
 93	if (event->type == SDL_JOYBUTTONDOWN) {
 94		context->activeKeys |= 1 << key;
 95	} else {
 96		context->activeKeys &= ~(1 << key);
 97	}
 98}
 99
100static void _GBASDLHandleJoyHat(struct GBAThread* context, const struct SDL_JoyHatEvent* event) {
101	enum GBAKey key = 0;
102
103	if (event->value & SDL_HAT_UP) {
104		key |= 1 << GBA_KEY_UP;
105	}
106	if (event->value & SDL_HAT_LEFT) {
107		key |= 1 << GBA_KEY_LEFT;
108	}
109	if (event->value & SDL_HAT_DOWN) {
110		key |= 1 << GBA_KEY_DOWN;
111	}
112	if (event->value & SDL_HAT_RIGHT) {
113		key |= 1 << GBA_KEY_RIGHT;
114	}
115
116	context->activeKeys &= ~((1 << GBA_KEY_UP) | (1 << GBA_KEY_LEFT) | (1 << GBA_KEY_DOWN) | (1 << GBA_KEY_RIGHT));
117	context->activeKeys |= key;
118}
119
120void GBASDLHandleEvent(struct GBAThread* context, const union SDL_Event* event) {
121	switch (event->type) {
122	case SDL_QUIT:
123		// FIXME: this isn't thread-safe
124		context->debugger->state = DEBUGGER_EXITING;
125		break;
126	case SDL_KEYDOWN:
127	case SDL_KEYUP:
128		_GBASDLHandleKeypress(context, &event->key);
129		break;
130	case SDL_JOYBUTTONDOWN:
131	case SDL_JOYBUTTONUP:
132		_GBASDLHandleJoyButton(context, &event->jbutton);
133		break;
134	case SDL_JOYHATMOTION:
135		_GBASDLHandleJoyHat(context, &event->jhat);
136	}
137}