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Analog support.

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This commit is contained in:
Themaister 2012-06-28 23:29:42 +02:00
parent fa5adbacd5
commit 03fcaf14d4
1 changed files with 54 additions and 9 deletions
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63
libretro.cpp
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@ -142,12 +142,17 @@ static inline void convert_surface()
// See mednafen/psx/input/gamepad.cpp
static void update_input()
{
static uint16_t input_buf[2];
input_buf[0] = input_buf[1] = 0;
union
{
uint32_t u32[2][1 + 8];
uint8_t u8[2][2 * sizeof(uint16_t) + 8 * sizeof(uint32_t)];
} static buf;
uint16_t input_buf[2] = {0};
static unsigned map[] = {
RETRO_DEVICE_ID_JOYPAD_SELECT,
-1u,
-1u,
RETRO_DEVICE_ID_JOYPAD_L3,
RETRO_DEVICE_ID_JOYPAD_R3,
RETRO_DEVICE_ID_JOYPAD_START,
RETRO_DEVICE_ID_JOYPAD_UP,
RETRO_DEVICE_ID_JOYPAD_RIGHT,
@ -166,13 +171,53 @@ static void update_input()
for (unsigned j = 0; j < 2; j++)
{
for (unsigned i = 0; i < 16; i++)
input_buf[j] |= map[i] != -1u &&
input_state_cb(j, RETRO_DEVICE_JOYPAD, 0, map[i]) ? (1 << i) : 0;
input_buf[j] |= input_state_cb(j, RETRO_DEVICE_JOYPAD, 0, map[i]) ? (1 << i) : 0;
}
// Possible endian bug ...
game->SetInput(0, "gamepad", &input_buf[0]);
game->SetInput(1, "gamepad", &input_buf[1]);
// Buttons.
buf.u8[0][0] = (input_buf[0] >> 0) & 0xff;
buf.u8[0][1] = (input_buf[0] >> 8) & 0xff;
buf.u8[1][0] = (input_buf[1] >> 0) & 0xff;
buf.u8[1][1] = (input_buf[1] >> 8) & 0xff;
// Analogs
for (unsigned j = 0; j < 2; j++)
{
int analog_left_x = input_state_cb(j, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT,
RETRO_DEVICE_ID_ANALOG_X);
int analog_left_y = input_state_cb(j, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT,
RETRO_DEVICE_ID_ANALOG_Y);
int analog_right_x = input_state_cb(j, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT,
RETRO_DEVICE_ID_ANALOG_X);
int analog_right_y = input_state_cb(j, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT,
RETRO_DEVICE_ID_ANALOG_Y);
uint32_t r_right = analog_right_x > 0 ? analog_right_x : 0;
uint32_t r_left = analog_right_x < 0 ? -analog_right_x : 0;
uint32_t r_down = analog_right_y > 0 ? analog_right_y : 0;
uint32_t r_up = analog_right_y < 0 ? -analog_right_y : 0;
uint32_t l_right = analog_left_x > 0 ? analog_left_x : 0;
uint32_t l_left = analog_left_x < 0 ? -analog_left_x : 0;
uint32_t l_down = analog_left_y > 0 ? analog_left_y : 0;
uint32_t l_up = analog_left_y < 0 ? -analog_left_y : 0;
buf.u32[j][1] = r_right;
buf.u32[j][2] = r_left;
buf.u32[j][3] = r_down;
buf.u32[j][4] = r_up;
buf.u32[j][5] = l_right;
buf.u32[j][6] = l_left;
buf.u32[j][7] = l_down;
buf.u32[j][8] = l_up;
}
game->SetInput(0, "dualanalog", &buf.u8[0]);
game->SetInput(1, "dualanalog", &buf.u8[1]);
}
void retro_run()