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(Libretro) Add optimal input read codepath - bitmasks

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This commit is contained in:
twinaphex 2020-07-13 19:13:18 +02:00
parent f958ed5817
commit 20d85e57c9
2 changed files with 797 additions and 118 deletions
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35
libretro/libretro.cpp
View File

@ -42,6 +42,8 @@
#define SAMPLERATE 44100
static bool libretro_supports_bitmasks = false;
namespace Libretro {
LibretroGraphicsContext *ctx;
retro_environment_t environ_cb;
@ -306,7 +308,8 @@ void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
void retro_init(void) {
void retro_init(void)
{
#if 0
g_Config.Load("");
#endif
@ -338,6 +341,9 @@ void retro_init(void) {
logman->SetAllLogLevels(LogTypes::LINFO);
#endif
}
if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL))
libretro_supports_bitmasks = true;
}
void retro_deinit(void) {
@ -348,6 +354,8 @@ void retro_deinit(void) {
delete host;
host = nullptr;
libretro_supports_bitmasks = false;
}
void retro_set_controller_port_device(unsigned port, unsigned device) {
@ -636,10 +644,29 @@ static void retro_input(void) {
input_poll_cb();
for (int i = 0; i < sizeof(map) / sizeof(*map); i++) {
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, map[i].retro)) {
unsigned i;
int16_t ret = 0;
if (libretro_supports_bitmasks)
{
ret = input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
}
else
{
for (i = RETRO_DEVICE_ID_JOYPAD_B; i <= RETRO_DEVICE_ID_JOYPAD_R; i++)
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i))
ret |= (1 << i);
}
for (i = 0; i < sizeof(map) / sizeof(*map); i++)
{
bool pressed = ret & (1 << map[i].retro);
if (pressed)
{
__CtrlButtonDown(map[i].sceCtrl);
} else {
}
else
{
__CtrlButtonUp(map[i].sceCtrl);
}
}

880
libretro/libretro.h
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