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Fixed and cleaned up PollKeyboardEvents() in drm backend

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This commit is contained in:
MrMugame 2024-03-26 19:36:13 +01:00
parent 729a01b6d4
commit ce30663903
1 changed files with 50 additions and 61 deletions
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111
src/platforms/rcore_drm.c
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@ -57,6 +57,12 @@
#include <sys/ioctl.h> // Required for: ioctl() - UNIX System call for device-specific input/output operations #include <sys/ioctl.h> // Required for: ioctl() - UNIX System call for device-specific input/output operations
#include <linux/kd.h> // Linux: KDSKBMODE, K_MEDIUMRAM constants definition #include <linux/kd.h> // Linux: KDSKBMODE, K_MEDIUMRAM constants definition
#include <linux/input.h> // Linux: Keycodes constants definition (KEY_A, ...) #include <linux/input.h> // Linux: Keycodes constants definition (KEY_A, ...)
// So both `linux/input.h` and `raylib.h` define KEY_F12
// To avoid conflict with the capturing code in rcore.c we undefine the macro KEY_F12,
// so the enum KEY_F12 from raylib is used
#undef KEY_F12
#include <linux/joystick.h> // Linux: Joystick support library #include <linux/joystick.h> // Linux: Joystick support library
#include <gbm.h> // Generic Buffer Management (native platform for EGL on DRM) #include <gbm.h> // Generic Buffer Management (native platform for EGL on DRM)
@ -548,6 +554,16 @@ void PollInputEvents(void)
PollKeyboardEvents(); PollKeyboardEvents();
#if defined(SUPPORT_SSH_KEYBOARD_RPI)
// NOTE: Keyboard reading could be done using input_event(s) or just read from stdin, both methods are used here.
// stdin reading is still used for legacy purposes, it allows keyboard input trough SSH console
if (!platform.eventKeyboardMode) ProcessKeyboard();
#endif
// Check exit key
if (CORE.Input.Keyboard.currentKeyState[CORE.Input.Keyboard.exitKey] == 1) CORE.Window.shouldClose = true;
// Register previous mouse position // Register previous mouse position
if (platform.cursorRelative) CORE.Input.Mouse.currentPosition = (Vector2){ 0.0f, 0.0f }; if (platform.cursorRelative) CORE.Input.Mouse.currentPosition = (Vector2){ 0.0f, 0.0f };
else CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition; else CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
@ -575,13 +591,6 @@ void PollInputEvents(void)
// Map touch position to mouse position for convenience // Map touch position to mouse position for convenience
CORE.Input.Touch.position[0] = CORE.Input.Mouse.currentPosition; CORE.Input.Touch.position[0] = CORE.Input.Mouse.currentPosition;
#if defined(SUPPORT_SSH_KEYBOARD_RPI)
// NOTE: Keyboard reading could be done using input_event(s) or just read from stdin, both methods are used here.
// stdin reading is still used for legacy purposes, it allows keyboard input trough SSH console
if (!platform.eventKeyboardMode) ProcessKeyboard();
#endif
// Handle the mouse/touch/gestures events: // Handle the mouse/touch/gestures events:
// NOTE: Replaces the EventThread handling that is now commented. // NOTE: Replaces the EventThread handling that is now commented.
PollMouseEvents(); PollMouseEvents();
@ -1206,18 +1215,6 @@ static void ProcessKeyboard(void)
CORE.Input.Keyboard.keyPressedQueueCount++; CORE.Input.Keyboard.keyPressedQueueCount++;
} }
} }
// Check exit key (same functionality as GLFW3 KeyCallback())
if (CORE.Input.Keyboard.currentKeyState[CORE.Input.Keyboard.exitKey] == 1) CORE.Window.shouldClose = true;
#if defined(SUPPORT_SCREEN_CAPTURE)
// Check screen capture key (raylib key: KEY_F12)
if (CORE.Input.Keyboard.currentKeyState[301] == 1)
{
TakeScreenshot(TextFormat("screenshot%03i.png", screenshotCounter));
screenshotCounter++;
}
#endif
} }
#endif // SUPPORT_SSH_KEYBOARD_RPI #endif // SUPPORT_SSH_KEYBOARD_RPI
@ -1470,57 +1467,49 @@ static void PollKeyboardEvents(void)
// Try to read data from the keyboard and only continue if successful // Try to read data from the keyboard and only continue if successful
while (read(fd, &event, sizeof(event)) == (int)sizeof(event)) while (read(fd, &event, sizeof(event)) == (int)sizeof(event))
{ {
// Button parsing // Check if the event is a key event
if (event.type == EV_KEY) if (event.type != EV_KEY) continue;
{
#if defined(SUPPORT_SSH_KEYBOARD_RPI)
// Change keyboard mode to events
platform.eventKeyboardMode = true;
#endif
// Keyboard button parsing
if ((event.code >= 1) && (event.code <= 255)) //Keyboard keys appear for codes 1 to 255
{
keycode = keymapUS[event.code & 0xFF]; // The code we get is a scancode so we look up the appropriate keycode
// Make sure we got a valid keycode #if defined(SUPPORT_SSH_KEYBOARD_RPI)
if ((keycode > 0) && (keycode < sizeof(CORE.Input.Keyboard.currentKeyState))) // If the event was a key, we know a working keyboard is connected, so disable the SSH keyboard
platform.eventKeyboardMode = true;
#endif
// Keyboard keys appear for codes 1 to 255, ignore everthing else
if ((event.code >= 1) && (event.code <= 255))
{
// Lookup the scancode in the keymap to get a keycode
keycode = keymapUS[event.code];
// Make sure we got a valid keycode
if ((keycode > 0) && (keycode < MAX_KEYBOARD_KEYS))
{
// WARNING: https://www.kernel.org/doc/Documentation/input/input.txt
// Event interface: 'value' is the value the event carries. Either a relative change for EV_REL,
// absolute new value for EV_ABS (joysticks ...), or 0 for EV_KEY for release, 1 for keypress and 2 for autorepeat
CORE.Input.Keyboard.currentKeyState[keycode] = (event.value >= 1);
CORE.Input.Keyboard.keyRepeatInFrame[keycode] = (event.value == 2);
// If the key is pressed add it to the queues
if (event.value == 1)
{ {
// WARNING: https://www.kernel.org/doc/Documentation/input/input.txt if (CORE.Input.Keyboard.keyPressedQueueCount < MAX_CHAR_PRESSED_QUEUE)
// Event interface: 'value' is the value the event carries. Either a relative change for EV_REL,
// absolute new value for EV_ABS (joysticks ...), or 0 for EV_KEY for release, 1 for keypress and 2 for autorepeat
CORE.Input.Keyboard.currentKeyState[keycode] = (event.value >= 1)? 1 : 0;
CORE.Input.Keyboard.keyRepeatInFrame[keycode] = (event.value == 2)? 1 : 0;
if (event.value >= 1)
{ {
CORE.Input.Keyboard.keyPressedQueue[CORE.Input.Keyboard.keyPressedQueueCount] = keycode; // Register last key pressed CORE.Input.Keyboard.keyPressedQueue[CORE.Input.Keyboard.keyPressedQueueCount] = keycode;
CORE.Input.Keyboard.keyPressedQueueCount++; CORE.Input.Keyboard.keyPressedQueueCount++;
} }
#if defined(SUPPORT_SCREEN_CAPTURE) if (CORE.Input.Keyboard.charPressedQueueCount < MAX_CHAR_PRESSED_QUEUE)
// Check screen capture key (raylib key: KEY_F12)
if (CORE.Input.Keyboard.currentKeyState[301] == 1)
{ {
TakeScreenshot(TextFormat("screenshot%03i.png", screenshotCounter)); // TODO/FIXME: This is not actually converting to unicode properly because it's not taking things like shift into account
screenshotCounter++; CORE.Input.Keyboard.charPressedQueue[CORE.Input.Keyboard.charPressedQueueCount] = EvkeyToUnicodeLUT[event.code];
CORE.Input.Keyboard.charPressedQueueCount++;
} }
#endif
// Detect char presses (unicode)
if (event.value == 1)
{
// Check if there is space available in the queue
if (CORE.Input.Keyboard.charPressedQueueCount < MAX_CHAR_PRESSED_QUEUE)
{
// Add character to the queue
CORE.Input.Keyboard.charPressedQueue[CORE.Input.Keyboard.charPressedQueueCount] = EvkeyToUnicodeLUT[event.code];
CORE.Input.Keyboard.charPressedQueueCount++;
}
}
if (CORE.Input.Keyboard.currentKeyState[CORE.Input.Keyboard.exitKey] == 1) CORE.Window.shouldClose = true;
TRACELOGD("DRM: KEY_%s ScanCode: %4i KeyCode: %4i", (event.value == 0)? "UP" : "DOWN", event.code, keycode);
} }
TRACELOG(LOG_DEBUG, "DRM: KEY_%s Keycode(linux): %4i KeyCode(raylib): %4i", (event.value == 0) ? "UP " : "DOWN", event.code, keycode);
} }
} }
} }