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Cleanup of XKB detection code.

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This commit is contained in:
Camilla Berglund 2014-05-18 12:24:29 +02:00
parent b889aa7841
commit d95b1b33e5
3 changed files with 45 additions and 24 deletions
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38
src/x11_init.c
View File

@ -40,14 +40,12 @@
static int translateKey(int keyCode)
{
int keySym;
int keysyms_per_keycode_return;
KeySym *keysyms;
// Valid key code range is [8,255], according to the XLib manual
if (keyCode < 8 || keyCode > 255)
return GLFW_KEY_UNKNOWN;
if(_glfw.x11.xkb.available)
if (_glfw.x11.xkb.available)
{
// Try secondary keysym, for numeric keypad keys
// Note: This way we always force "NumLock = ON", which is intentional
@ -80,13 +78,12 @@ static int translateKey(int keyCode)
}
else
{
keysyms =
XGetKeyboardMapping(_glfw.x11.display,
keyCode,
1,
&keysyms_per_keycode_return);
keySym = keysyms[0];
XFree(keysyms);
int dummy;
KeySym* keySyms;
keySyms = XGetKeyboardMapping(_glfw.x11.display, keyCode, 1, &dummy);
keySym = keySyms[0];
XFree(keySyms);
}
switch (keySym)
@ -233,8 +230,7 @@ static int translateKey(int keyCode)
//
static void updateKeyCodeLUT(void)
{
int keyCode;
int keyCodeGLFW, i;
int i, keyCode, keyCodeGLFW;
char name[XkbKeyNameLength + 1];
XkbDescPtr descr;
@ -242,7 +238,7 @@ static void updateKeyCodeLUT(void)
for (keyCode = 0; keyCode < 256; keyCode++)
_glfw.x11.keyCodeLUT[keyCode] = GLFW_KEY_UNKNOWN;
if(_glfw.x11.xkb.available)
if (_glfw.x11.xkb.available)
{
// Use XKB to determine physical key locations independently of the current
// keyboard layout
@ -451,8 +447,6 @@ static void detectEWMH(void)
//
static GLboolean initExtensions(void)
{
Bool supported;
// Find or create window manager atoms
_glfw.x11.WM_PROTOCOLS = XInternAtom(_glfw.x11.display,
"WM_PROTOCOLS",
@ -524,18 +518,14 @@ static GLboolean initExtensions(void)
&_glfw.x11.xkb.versionMajor,
&_glfw.x11.xkb.versionMinor);
if(_glfw.x11.xkb.available)
if (_glfw.x11.xkb.available)
{
if (!XkbSetDetectableAutoRepeat(_glfw.x11.display, True, &supported))
{
// X11: Failed to set detectable key repeat
_glfw.x11.xkb.available = GL_FALSE;
}
Bool supported;
if (!supported)
if (XkbSetDetectableAutoRepeat(_glfw.x11.display, True, &supported))
{
// X11: Detectable key repeat is not supported
_glfw.x11.xkb.available = GL_FALSE;
if (supported)
_glfw.x11.xkb.detectable = GL_TRUE;
}
}

1
src/x11_platform.h
View File

@ -176,6 +176,7 @@ typedef struct _GLFWlibraryX11
struct {
GLboolean available;
GLboolean detectable;
int majorOpcode;
int eventBase;
int errorBase;

30
src/x11_window.c
View File

@ -615,6 +615,36 @@ static void processEvent(XEvent *event)
const int key = translateKey(event->xkey.keycode);
const int mods = translateState(event->xkey.state);
if (!_glfw.x11.xkb.detectable)
{
// XKB detectable key repeat is not supported on this server
// For key repeats we will get KeyRelease/KeyPress pairs with
// similar or identical time stamps. User selected key repeat
// filtering is handled in _glfwInputKey/_glfwInputChar.
if (XEventsQueued(_glfw.x11.display, QueuedAfterReading))
{
XEvent nextEvent;
XPeekEvent(_glfw.x11.display, &nextEvent);
if (nextEvent.type == KeyPress &&
nextEvent.xkey.window == event->xkey.window &&
nextEvent.xkey.keycode == event->xkey.keycode)
{
// This last check is a hack to work around key repeats
// leaking through due to some sort of time drift
// Toshiyuki Takahashi can press a button 16 times per
// second so it's fairly safe to assume that no human is
// pressing the key 50 times per second (value is ms)
if ((nextEvent.xkey.time - event->xkey.time) < 20)
{
// This is a server-generated key repeat event
// Do not report anything for this event
break;
}
}
}
}
_glfwInputKey(window, key, event->xkey.keycode, GLFW_RELEASE, mods);
break;
}