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Implement libretro input bitmask

This commit is contained in:
negativeExponent 2021-05-20 14:12:08 +08:00
parent 109573dea6
commit 25fefc1b3d
1 changed files with 19 additions and 1 deletions
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20
src/libretro/libretro.cpp
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@ -63,6 +63,7 @@ static bool option_showAdvancedOptions = false;
static double option_sndFiltering = 0.5;
static unsigned option_gbPalette = 0;
static bool option_lcdfilter = false;
// filters
static IFBFilterFunc ifb_filter_func = NULL;
@ -71,6 +72,7 @@ static unsigned systemWidth = gbaWidth;
static unsigned systemHeight = gbaHeight;
static EmulatedSystem* core = NULL;
static IMAGE_TYPE type = IMAGE_UNKNOWN;
static bool libretro_supports_bitmasks = false;
// global vars
uint16_t systemColorMap16[0x10000];
@ -643,6 +645,12 @@ void retro_init(void)
rumble_cb = rumble.set_rumble_state;
else
rumble_cb = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
{
libretro_supports_bitmasks = true;
log_cb(RETRO_LOG_INFO, "SET_SUPPORT_INPUT_BITMASK: yes\n");
}
}
static const char *gbGetCartridgeType(void)
@ -978,6 +986,7 @@ void retro_deinit(void)
emulating = 0;
core->emuCleanUp();
soundShutdown();
libretro_supports_bitmasks = false;
}
void retro_reset(void)
@ -1414,6 +1423,7 @@ void updateInput_SolarSensor(void)
static void updateInput_Joypad(void)
{
unsigned max_buttons = MAX_BUTTONS - ((type == IMAGE_GB) ? 2 : 0); // gb only has 8 buttons
int16_t inbuf = 0;
for (unsigned port = 0; port < MAX_PLAYERS; port++)
{
@ -1421,8 +1431,16 @@ static void updateInput_Joypad(void)
input_buf[port] = 0;
if (retropad_device[port] == RETRO_DEVICE_JOYPAD) {
if (libretro_supports_bitmasks)
inbuf = input_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
else
{
for (int i = 0; i < (RETRO_DEVICE_ID_JOYPAD_R3 + 1); i++)
inbuf |= input_cb(0, RETRO_DEVICE_JOYPAD, 0, i) ? (1 << i) : 0;
}
for (unsigned button = 0; button < max_buttons; button++)
input_buf[port] |= input_cb(port, RETRO_DEVICE_JOYPAD, 0, binds[button]) << button;
input_buf[port] |= (inbuf & (1 << binds[button])) ? (1 << button) : 0;
if (option_turboEnable) {
/* Handle Turbo A & B buttons */