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REVIEWED: Avoid rtext dependency on rcore_desktop_sdl #4959

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Ray
2025-06-24 20:11:35 +02:00
parent b677376088
commit 44f670899c
1 changed files with 49 additions and 4 deletions
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53
src/platforms/rcore_desktop_sdl.c
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@ -424,6 +424,8 @@ void ClosePlatform(void); // Close platform
static KeyboardKey ConvertScancodeToKey(SDL_Scancode sdlScancode); // Help convert SDL scancodes to raylib key
static int GetCodepointNextSDL(const char *text, int *codepointSize); // Get next codepoint in a byte sequence and bytes processed
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
@ -1601,13 +1603,18 @@ void PollInputEvents(void)
{
// NOTE: event.text.text data comes an UTF-8 text sequence but we register codepoints (int)
int codepointSize = 0;
// Check if there is space available in the queue
if (CORE.Input.Keyboard.charPressedQueueCount < MAX_CHAR_PRESSED_QUEUE)
{
// Add character (codepoint) to the queue
CORE.Input.Keyboard.charPressedQueue[CORE.Input.Keyboard.charPressedQueueCount] = GetCodepointNext(event.text.text, &codepointSize);
#if defined(PLATFORM_DESKTOP_SDL3)
unsigned int textLen = strlen(event.text.text);
unsigned int codepoint = (unsigned int)SDL_StepUTF8(&event.text.text, textLen);
#else
int codepointSize = 0;
codepoint = GetCodepointNextSDL(event.text.text, &codepointSize);
#endif
CORE.Input.Keyboard.charPressedQueue[CORE.Input.Keyboard.charPressedQueueCount] = codepoint;
CORE.Input.Keyboard.charPressedQueueCount++;
}
} break;
@ -2093,4 +2100,42 @@ static KeyboardKey ConvertScancodeToKey(SDL_Scancode sdlScancode)
return KEY_NULL; // No equivalent key in Raylib
}
// EOF
// Get next codepoint in a byte sequence and bytes processed
static int GetCodepointNextSDL(const char *text, int *codepointSize)
{
const char *ptr = text;
int codepoint = 0x3f; // Codepoint (defaults to '?')
*codepointSize = 1;
// Get current codepoint and bytes processed
if (0xf0 == (0xf8 & ptr[0]))
{
// 4 byte UTF-8 codepoint
if (((ptr[1] & 0xC0) ^ 0x80) || ((ptr[2] & 0xC0) ^ 0x80) || ((ptr[3] & 0xC0) ^ 0x80)) { return codepoint; } // 10xxxxxx checks
codepoint = ((0x07 & ptr[0]) << 18) | ((0x3f & ptr[1]) << 12) | ((0x3f & ptr[2]) << 6) | (0x3f & ptr[3]);
*codepointSize = 4;
}
else if (0xe0 == (0xf0 & ptr[0]))
{
// 3 byte UTF-8 codepoint */
if (((ptr[1] & 0xC0) ^ 0x80) || ((ptr[2] & 0xC0) ^ 0x80)) { return codepoint; } // 10xxxxxx checks
codepoint = ((0x0f & ptr[0]) << 12) | ((0x3f & ptr[1]) << 6) | (0x3f & ptr[2]);
*codepointSize = 3;
}
else if (0xc0 == (0xe0 & ptr[0]))
{
// 2 byte UTF-8 codepoint
if ((ptr[1] & 0xC0) ^ 0x80) { return codepoint; } // 10xxxxxx checks
codepoint = ((0x1f & ptr[0]) << 6) | (0x3f & ptr[1]);
*codepointSize = 2;
}
else if (0x00 == (0x80 & ptr[0]))
{
// 1 byte UTF-8 codepoint
codepoint = ptr[0];
*codepointSize = 1;
}
return codepoint;
}