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Don't use a separate thread when polling for gamepad events on DRM platforms (#3641)

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Cinghy Creations 2023-12-19 10:47:04 +01:00 • committed by GitHub
parent 8b5943d930
commit 57a5ebe6c6
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 32 deletions
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45
src/platforms/rcore_drm.c
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@ -128,7 +128,6 @@ typedef struct {
int touchSlot; // Hold the touch slot number of the currently being sent multitouch block int touchSlot; // Hold the touch slot number of the currently being sent multitouch block
// Gamepad data // Gamepad data
pthread_t gamepadThreadId; // Gamepad reading thread id
int gamepadStreamFd[MAX_GAMEPADS]; // Gamepad device file descriptor int gamepadStreamFd[MAX_GAMEPADS]; // Gamepad device file descriptor
} PlatformData; } PlatformData;
@ -191,7 +190,7 @@ static void PollKeyboardEvents(void); // Process evdev keyboard events
static void *EventThread(void *arg); // Input device events reading thread static void *EventThread(void *arg); // Input device events reading thread
static void InitGamepad(void); // Initialize raw gamepad input static void InitGamepad(void); // Initialize raw gamepad input
static void *GamepadThread(void *arg); // Mouse reading thread static void PollGamepadEvents(void); // Gamepad reading function
static int FindMatchingConnectorMode(const drmModeConnector *connector, const drmModeModeInfo *mode); // Search matching DRM mode in connector's mode list static int FindMatchingConnectorMode(const drmModeConnector *connector, const drmModeModeInfo *mode); // Search matching DRM mode in connector's mode list
static int FindExactConnectorMode(const drmModeConnector *connector, uint width, uint height, uint fps, bool allowInterlaced); // Search exactly matching DRM connector mode in connector's list static int FindExactConnectorMode(const drmModeConnector *connector, uint width, uint height, uint fps, bool allowInterlaced); // Search exactly matching DRM connector mode in connector's list
@ -575,14 +574,7 @@ void PollInputEvents(void)
} }
// Register gamepads buttons events // Register gamepads buttons events
for (int i = 0; i < MAX_GAMEPADS; i++) PollGamepadEvents();
{
if (CORE.Input.Gamepad.ready[i])
{
// Register previous gamepad states
for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) CORE.Input.Gamepad.previousButtonState[i][k] = CORE.Input.Gamepad.currentButtonState[i][k];
}
}
// Register previous touch states // Register previous touch states
for (int i = 0; i < MAX_TOUCH_POINTS; i++) CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.currentTouchState[i]; for (int i = 0; i < MAX_TOUCH_POINTS; i++) CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.currentTouchState[i];
@ -598,9 +590,6 @@ void PollInputEvents(void)
// stdin reading is still used for legacy purposes, it allows keyboard input trough SSH console // stdin reading is still used for legacy purposes, it allows keyboard input trough SSH console
if (!platform.eventKeyboardMode) ProcessKeyboard(); if (!platform.eventKeyboardMode) ProcessKeyboard();
// NOTE: Mouse input events polling is done asynchronously in another pthread - EventThread()
// NOTE: Gamepad (Joystick) input events polling is done asynchronously in another pthread - GamepadThread()
#endif #endif
// Handle the mouse/touch/gestures events: // Handle the mouse/touch/gestures events:
@ -1228,8 +1217,6 @@ void ClosePlatform(void)
pthread_join(platform.eventWorker[i].threadId, NULL); pthread_join(platform.eventWorker[i].threadId, NULL);
} }
} }
if (platform.gamepadThreadId) pthread_join(platform.gamepadThreadId, NULL);
} }
// Initialize Keyboard system (using standard input) // Initialize Keyboard system (using standard input)
@ -1943,14 +1930,8 @@ static void InitGamepad(void)
{ {
CORE.Input.Gamepad.ready[i] = true; CORE.Input.Gamepad.ready[i] = true;
// NOTE: Only create one thread // NOTE: Only show message for first gamepad
if (i == 0) if (i == 0) TRACELOG(LOG_INFO, "RPI: Gamepad device initialized successfully");
{
int error = pthread_create(&platform.gamepadThreadId, NULL, &GamepadThread, NULL);
if (error != 0) TRACELOG(LOG_WARNING, "RPI: Failed to create gamepad input event thread");
else TRACELOG(LOG_INFO, "RPI: Gamepad device initialized successfully");
}
ioctl(platform.gamepadStreamFd[i], JSIOCGNAME(64), &CORE.Input.Gamepad.name[i]); ioctl(platform.gamepadStreamFd[i], JSIOCGNAME(64), &CORE.Input.Gamepad.name[i]);
ioctl(platform.gamepadStreamFd[i], JSIOCGAXES, &CORE.Input.Gamepad.axisCount[i]); ioctl(platform.gamepadStreamFd[i], JSIOCGAXES, &CORE.Input.Gamepad.axisCount[i]);
@ -1959,7 +1940,7 @@ static void InitGamepad(void)
} }
// Process Gamepad (/dev/input/js0) // Process Gamepad (/dev/input/js0)
static void *GamepadThread(void *arg) static void PollGamepadEvents(void)
{ {
#define JS_EVENT_BUTTON 0x01 // Button pressed/released #define JS_EVENT_BUTTON 0x01 // Button pressed/released
#define JS_EVENT_AXIS 0x02 // Joystick axis moved #define JS_EVENT_AXIS 0x02 // Joystick axis moved
@ -1975,18 +1956,21 @@ static void *GamepadThread(void *arg)
// Read gamepad event // Read gamepad event
struct js_event gamepadEvent = { 0 }; struct js_event gamepadEvent = { 0 };
while (!CORE.Window.shouldClose) for (int i = 0; i < MAX_GAMEPADS; i++)
{ {
for (int i = 0; i < MAX_GAMEPADS; i++) if (CORE.Input.Gamepad.ready[i])
{ {
if (read(platform.gamepadStreamFd[i], &gamepadEvent, sizeof(struct js_event)) == (int)sizeof(struct js_event)) // Register previous gamepad states
for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) CORE.Input.Gamepad.previousButtonState[i][k] = CORE.Input.Gamepad.currentButtonState[i][k];
while (read(platform.gamepadStreamFd[i], &gamepadEvent, sizeof(struct js_event)) == (int)sizeof(struct js_event))
{ {
gamepadEvent.type &= ~JS_EVENT_INIT; // Ignore synthetic events gamepadEvent.type &= ~JS_EVENT_INIT; // Ignore synthetic events
// Process gamepad events by type // Process gamepad events by type
if (gamepadEvent.type == JS_EVENT_BUTTON) if (gamepadEvent.type == JS_EVENT_BUTTON)
{ {
//TRACELOG(LOG_WARNING, "RPI: Gamepad button: %i, value: %i", gamepadEvent.number, gamepadEvent.value); TRACELOG(LOG_DEBUG, "RPI: Gamepad %i button: %i, value: %i", i, gamepadEvent.number, gamepadEvent.value);
if (gamepadEvent.number < MAX_GAMEPAD_BUTTONS) if (gamepadEvent.number < MAX_GAMEPAD_BUTTONS)
{ {
@ -1999,7 +1983,7 @@ static void *GamepadThread(void *arg)
} }
else if (gamepadEvent.type == JS_EVENT_AXIS) else if (gamepadEvent.type == JS_EVENT_AXIS)
{ {
//TRACELOG(LOG_WARNING, "RPI: Gamepad axis: %i, value: %i", gamepadEvent.number, gamepadEvent.value); TRACELOG(LOG_DEBUG, "RPI: Gamepad %i axis: %i, value: %i", i, gamepadEvent.number, gamepadEvent.value);
if (gamepadEvent.number < MAX_GAMEPAD_AXIS) if (gamepadEvent.number < MAX_GAMEPAD_AXIS)
{ {
@ -2008,11 +1992,8 @@ static void *GamepadThread(void *arg)
} }
} }
} }
else WaitTime(0.001); // Sleep for 1 ms to avoid hogging CPU time
} }
} }
return NULL;
} }
// Search matching DRM mode in connector's mode list // Search matching DRM mode in connector's mode list