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[PS2] Analog support improvement

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This commit is contained in:
Francisco Javier Trujillo Mata 2019-02-27 19:39:41 +01:00
parent ebae7ebc79
commit 48d46dcc44
1 changed files with 58 additions and 5 deletions
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63
input/drivers_joypad/ps2_joypad.c
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@ -40,6 +40,17 @@ static INLINE int16_t convert_u8_to_s16(uint8_t val)
return val * 0x0101 - 0x8000; return val * 0x0101 - 0x8000;
} }
static bool is_analog_enabled(struct padButtonStatus buttons)
{
bool enabled = false;
if (buttons.ljoy_h || buttons.ljoy_v || buttons.rjoy_h || buttons.rjoy_v) {
enabled = true;
}
return enabled;
}
static const char *ps2_joypad_name(unsigned pad) static const char *ps2_joypad_name(unsigned pad)
{ {
return "PS2 Controller"; return "PS2 Controller";
@ -92,7 +103,47 @@ static void ps2_joypad_get_buttons(unsigned port_num, input_bits_t *state)
static int16_t ps2_joypad_axis(unsigned port_num, uint32_t joyaxis) static int16_t ps2_joypad_axis(unsigned port_num, uint32_t joyaxis)
{ {
return 0; int val = 0;
int axis = -1;
bool is_neg = false;
bool is_pos = false;
if (joyaxis == AXIS_NONE || port_num >= PS2_MAX_PADS)
return 0;
if (AXIS_NEG_GET(joyaxis) < 4)
{
axis = AXIS_NEG_GET(joyaxis);
is_neg = true;
}
else if (AXIS_POS_GET(joyaxis) < 4)
{
axis = AXIS_POS_GET(joyaxis);
is_pos = true;
}
switch (axis)
{
case 0:
val = analog_state[port_num][0][0];
break;
case 1:
val = analog_state[port_num][0][1];
break;
case 2:
val = analog_state[port_num][1][0];
break;
case 3:
val = analog_state[port_num][1][1];
break;
}
if (is_neg && val > 0)
val = 0;
else if (is_pos && val < 0)
val = 0;
return val;
} }
static void ps2_joypad_poll(void) static void ps2_joypad_poll(void)
@ -126,10 +177,12 @@ static void ps2_joypad_poll(void)
pad_state[player] |= (state_tmp & PAD_L3) ? (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_L3) : 0; pad_state[player] |= (state_tmp & PAD_L3) ? (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_L3) : 0;
/* Analog */ /* Analog */
analog_state[player][RETRO_DEVICE_INDEX_ANALOG_LEFT] [RETRO_DEVICE_ID_ANALOG_X] = convert_u8_to_s16(buttons.ljoy_h); if (is_analog_enabled(buttons)) {
analog_state[player][RETRO_DEVICE_INDEX_ANALOG_LEFT] [RETRO_DEVICE_ID_ANALOG_Y] = convert_u8_to_s16(buttons.ljoy_v);; analog_state[player][RETRO_DEVICE_INDEX_ANALOG_LEFT] [RETRO_DEVICE_ID_ANALOG_X] = convert_u8_to_s16(buttons.ljoy_h);
analog_state[player][RETRO_DEVICE_INDEX_ANALOG_RIGHT][RETRO_DEVICE_ID_ANALOG_X] = convert_u8_to_s16(buttons.rjoy_h);; analog_state[player][RETRO_DEVICE_INDEX_ANALOG_LEFT] [RETRO_DEVICE_ID_ANALOG_Y] = convert_u8_to_s16(buttons.ljoy_v);;
analog_state[player][RETRO_DEVICE_INDEX_ANALOG_RIGHT][RETRO_DEVICE_ID_ANALOG_Y] = convert_u8_to_s16(buttons.rjoy_v);; analog_state[player][RETRO_DEVICE_INDEX_ANALOG_RIGHT][RETRO_DEVICE_ID_ANALOG_X] = convert_u8_to_s16(buttons.rjoy_h);;
analog_state[player][RETRO_DEVICE_INDEX_ANALOG_RIGHT][RETRO_DEVICE_ID_ANALOG_Y] = convert_u8_to_s16(buttons.rjoy_v);;
}
} }
} }