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Add SDL_JoystickSetLED.

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Currently, this is only supported by the PS4 HIDAPI driver.
This commit is contained in:
Ethan Lee
2020-04-30 11:57:29 -04:00
parent 1b8dee7caf
commit 83cddd2ebc
24 changed files with 229 additions and 1 deletions
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31
src/joystick/hidapi/SDL_hidapi_ps4.c
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@@ -100,6 +100,12 @@ typedef struct {
SDL_bool audio_supported;
SDL_bool rumble_supported;
int player_index;
Uint16 rumble_left;
Uint16 rumble_right;
Uint8 color_set;
Uint8 led_red;
Uint8 led_green;
Uint8 led_blue;
Uint8 volume;
Uint32 last_volume_check;
PS4StatePacket_t last_state;
@@ -330,11 +336,19 @@ HIDAPI_DriverPS4_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystic
}
effects = (DS4EffectsState_t *)&data[offset];
ctx->rumble_left = low_frequency_rumble;
ctx->rumble_right = high_frequency_rumble;
effects->ucRumbleLeft = (low_frequency_rumble >> 8);
effects->ucRumbleRight = (high_frequency_rumble >> 8);
/* Populate the LED state with the appropriate color from our lookup table */
SetLedsForPlayerIndex(effects, ctx->player_index);
if (ctx->color_set) {
effects->ucLedRed = ctx->led_red;
effects->ucLedGreen = ctx->led_green;
effects->ucLedBlue = ctx->led_blue;
} else {
SetLedsForPlayerIndex(effects, ctx->player_index);
}
if (ctx->is_bluetooth) {
/* Bluetooth reports need a CRC at the end of the packet (at least on Linux) */
@@ -351,6 +365,20 @@ HIDAPI_DriverPS4_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystic
return 0;
}
static int
HIDAPI_DriverPS4_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
{
SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context;
ctx->color_set = 1;
ctx->led_red = red;
ctx->led_green = green;
ctx->led_blue = blue;
/* FIXME: Is there a better way to send this without sending another rumble packet? */
return HIDAPI_DriverPS4_RumbleJoystick(device, joystick, ctx->rumble_left, ctx->rumble_right);
}
static void
HIDAPI_DriverPS4_HandleStatePacket(SDL_Joystick *joystick, hid_device *dev, SDL_DriverPS4_Context *ctx, PS4StatePacket_t *packet)
{
@@ -536,6 +564,7 @@ SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverPS4 =
HIDAPI_DriverPS4_UpdateDevice,
HIDAPI_DriverPS4_OpenJoystick,
HIDAPI_DriverPS4_RumbleJoystick,
HIDAPI_DriverPS4_SetJoystickLED,
HIDAPI_DriverPS4_CloseJoystick,
HIDAPI_DriverPS4_FreeDevice,
NULL