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(SDL2) Fix rumble and implement joypad hotplug

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This commit is contained in:
Higor Eurípedes 2014-08-10 18:37:14 -03:00
parent 609f3a8a36
commit 4c084b885d
1 changed files with 91 additions and 52 deletions
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143
input/sdl2_joypad.c
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@ -29,28 +29,83 @@ typedef struct _sdl2_joypad
} sdl2_joypad_t;
static sdl2_joypad_t g_pads[MAX_PLAYERS];
static bool has_haptic;
static void sdl2_joypad_destroy(void)
{
unsigned i;
for (i = 0; i < MAX_PLAYERS; i++)
{
if (g_pads[i].haptic)
SDL_HapticClose(g_pads[i].haptic);
if (g_pads[i].joypad)
SDL_JoystickClose(g_pads[i].joypad);
}
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
memset(g_pads, 0, sizeof(g_pads));
}
static void sdl2_joypad_connect(int id)
{
sdl2_joypad_t *pad = &g_pads[id];
pad->joypad = SDL_JoystickOpen(id);
if (!pad->joypad)
{
RARCH_ERR("[SDL]: Couldn't open SDL joystick #%u.\n", id);
return;
}
RARCH_LOG("[SDL]: Joypad #%u connected: %s.\n",
id, SDL_JoystickName(pad->joypad));
pad->haptic = has_haptic ? SDL_HapticOpenFromJoystick(pad->joypad) : NULL;
if (has_haptic && !pad->haptic)
RARCH_WARN("[SDL]: Couldn't open haptic device of the joypad #%u: %s\n",
id, SDL_GetError());
pad->rumble_effect = -1;
if (pad->haptic)
{
SDL_HapticEffect efx;
efx.type = SDL_HAPTIC_LEFTRIGHT;
efx.leftright.type = SDL_HAPTIC_LEFTRIGHT;
efx.leftright.large_magnitude = efx.leftright.small_magnitude = 0x4000;
efx.leftright.length = 5000;
if (SDL_HapticEffectSupported(pad->haptic, &efx) == SDL_FALSE)
{
pad->rumble_effect = -2;
RARCH_WARN("[SDL]: Joypad #%u does not support rumble.\n", id);
}
}
pad->num_axes = SDL_JoystickNumAxes(pad->joypad);
pad->num_buttons = SDL_JoystickNumButtons(pad->joypad);
pad->num_hats = SDL_JoystickNumHats(pad->joypad);
pad->num_balls = SDL_JoystickNumBalls(pad->joypad);
RARCH_LOG("[SDL]: Joypad #%u has: %u axes, %u buttons, %u hats and %u trackballs.\n",
id, pad->num_axes, pad->num_buttons, pad->num_hats, pad->num_balls);
}
static void sdl2_joypad_disconnect(int id)
{
RARCH_LOG("[SDL]: Joypad #%u disconnected.\n", id);
if (g_pads[id].haptic)
SDL_HapticClose(g_pads[id].haptic);
if (g_pads[id].joypad)
SDL_JoystickClose(g_pads[id].joypad);
memset(&g_pads[id], 0, sizeof(g_pads[id]));
}
static bool sdl2_joypad_init(void)
{
unsigned i;
bool has_haptic = false;
has_haptic = false;
if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
{
RARCH_WARN("[SDL]: Failed to initialize joystick interface: %s\n",
@ -75,49 +130,19 @@ static bool sdl2_joypad_init(void)
for (i = 0; i < num_sticks; i++)
{
sdl2_joypad_t *pad = &g_pads[i];
pad->joypad = SDL_JoystickOpen(i);
if (!pad->joypad)
{
RARCH_ERR("[SDL]: Couldn't open SDL joystick #%u.\n", i);
goto error;
}
RARCH_LOG("[SDL]: Opened Joystick: %s (#%u).\n",
SDL_JoystickName(pad->joypad), i);
pad->haptic = has_haptic ? SDL_HapticOpenFromJoystick(pad->joypad) : NULL;
if (has_haptic && !pad->haptic)
RARCH_WARN("[SDL]: Couldn't open haptic device of the joypad #%u: %s\n",
i, SDL_GetError());
pad->rumble_effect = -1;
if (pad->haptic)
{
SDL_HapticLeftRight efx;
efx.type = SDL_HAPTIC_LEFTRIGHT;
efx.large_magnitude = efx.large_magnitude = 0x4000;
efx.length = 5000;
if (SDL_HapticEffectSupported(pad->haptic, &efx) == SDL_FALSE)
{
pad->rumble_effect = -2;
RARCH_WARN("[SDL]: Joypad #%u does not support rumble.\n", i);
}
}
pad->num_axes = SDL_JoystickNumAxes(pad->joypad);
pad->num_buttons = SDL_JoystickNumButtons(pad->joypad);
pad->num_hats = SDL_JoystickNumHats(pad->joypad);
pad->num_balls = SDL_JoystickNumBalls(pad->joypad);
RARCH_LOG("[SDL]: Joypad #%u has: %u axes, %u buttons, %u hats and %u trackballs.\n",
i, pad->num_axes, pad->num_buttons, pad->num_hats, pad->num_balls);
sdl2_joypad_connect(i);
}
num_sticks = 0;
for (i = 0; i < MAX_PLAYERS; i++)
{
if (g_pads[i].joypad)
num_sticks++;
}
if (num_sticks == 0)
goto error;
return true;
error:
@ -197,26 +222,40 @@ static int16_t sdl2_joypad_axis(unsigned port, uint32_t joyaxis)
static void sdl2_joypad_poll(void)
{
SDL_JoystickUpdate();
// SDL_JoystickUpdate();
SDL_Event event;
while (SDL_PollEvent(&event))
{
if (event.type == SDL_JOYDEVICEADDED)
{
sdl2_joypad_connect(event.jdevice.which);
}
else if (event.type == SDL_JOYDEVICEREMOVED)
{
sdl2_joypad_disconnect(event.jdevice.which);
}
}
}
static bool sdl2_joypad_set_rumble(unsigned pad, enum retro_rumble_effect effect, uint16_t strength)
{
SDL_HapticLeftRight efx;
SDL_HapticEffect efx;
memset(&efx, 0, sizeof(efx));
sdl2_joypad_t *joypad = &g_pads[pad];
if (!joypad->joypad || !joypad->haptic)
return;
return false;
efx.type = SDL_HAPTIC_LEFTRIGHT;
efx.length = 5000;
efx.leftright.type = SDL_HAPTIC_LEFTRIGHT;
efx.leftright.length = 5000;
switch (effect)
{
case RETRO_RUMBLE_STRONG: efx.large_magnitude = strength; break;
case RETRO_RUMBLE_WEAK: efx.small_magnitude = strength; break;
case RETRO_RUMBLE_STRONG: efx.leftright.large_magnitude = strength; break;
case RETRO_RUMBLE_WEAK: efx.leftright.small_magnitude = strength; break;
default: return false;
}