ShuriZma
/
SameBoy
mirror of https://github.com/LIJI32/SameBoy.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Lag minimization bounce optimization

This commit is contained in:
Lior Halphon 2022-07-24 02:35:46 +03:00
parent a524cc3105
commit 0f31c7a1ba
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Core/joypad.c
View File

@ -11,12 +11,12 @@ static inline uint16_t bounce_for_key(GB_gameboy_t *gb, GB_key_t key)
{
if (gb->model > GB_MODEL_CGB_E) {
// AGB are less bouncy
return 0xC00;
return 0xBFF;
}
if (key == GB_KEY_START || key == GB_KEY_SELECT) {
return 0x2000;
return 0x1FFF;
}
return 0x1000;
return 0xFFF;
}
static inline bool get_input(GB_gameboy_t *gb, uint8_t player, GB_key_t key)
@ -27,6 +27,7 @@ static inline bool get_input(GB_gameboy_t *gb, uint8_t player, GB_key_t key)
bool ret = gb->keys[player][key];
if (likely(gb->key_bounce_timing[key] == 0)) return ret;
if (likely((gb->key_bounce_timing[key] & 0x3FF) > 0x300)) return ret;
uint16_t semi_random = ((((key << 5) + gb->div_counter) * 17) ^ ((gb->apu.apu_cycles + gb->display_cycles) * 13));
semi_random >>= 3;
if (semi_random < gb->key_bounce_timing[key]) {