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libretro: joypad bitmasks

This commit is contained in:
SimpleTease 2020-10-10 17:14:10 +00:00
parent 714227883f
commit 696bebc673
2 changed files with 1039 additions and 393 deletions
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39
libretro/libretro.c
View File

@ -85,6 +85,8 @@ static retro_audio_sample_t audio_sample_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
static bool libretro_supports_bitmasks = false;
static unsigned emulated_devices = 1;
static bool initialized = false;
static unsigned screen_layout = 0;
@ -119,24 +121,39 @@ static struct retro_rumble_interface rumble;
static void GB_update_keys_status(GB_gameboy_t *gb, unsigned port)
{
uint16_t joypad_bits = 0;
input_poll_cb();
if (libretro_supports_bitmasks) {
joypad_bits = input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
}
else {
unsigned j;
for (j = 0; j < (RETRO_DEVICE_ID_JOYPAD_R3+1); j++) {
if (input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, j)) {
joypad_bits |= (1 << j);
}
}
}
GB_set_key_state_for_player(gb, GB_KEY_RIGHT, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT));
GB_set_key_state_for_player(gb, GB_KEY_LEFT, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT));
GB_set_key_state_for_player(gb, GB_KEY_UP, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_UP));
GB_set_key_state_for_player(gb, GB_KEY_DOWN, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN));
GB_set_key_state_for_player(gb, GB_KEY_A, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_A));
GB_set_key_state_for_player(gb, GB_KEY_B, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_B));
GB_set_key_state_for_player(gb, GB_KEY_SELECT, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT));
GB_set_key_state_for_player(gb, GB_KEY_START, emulated_devices == 1 ? port : 0,
input_state_cb(port, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START));
joypad_bits & (1 << RETRO_DEVICE_ID_JOYPAD_START));
}
@ -840,6 +857,10 @@ void retro_init(void)
else {
log_cb = fallback_log;
}
if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL)) {
libretro_supports_bitmasks = true;
}
}
void retro_deinit(void)
@ -848,6 +869,8 @@ void retro_deinit(void)
free(frame_buf_copy);
frame_buf = NULL;
frame_buf_copy = NULL;
libretro_supports_bitmasks = false;
}
unsigned retro_api_version(void)

863
libretro/libretro.h
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