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X11: Fix X keycode ranges for XKB and core

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This replaces the hardcoded keycode ranges and various kludgy range
checks with the actual ranges reported by Xlib and XKB.
This commit is contained in:
Camilla Löwy 2020-03-17 00:04:48 +01:00
parent 215a05af3d
commit ee45b58647
2 changed files with 14 additions and 9 deletions
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20
src/x11_init.c
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@ -43,10 +43,6 @@ static int translateKeyCode(int scancode)
{
int keySym;
// Valid key code range is [8,255], according to the Xlib manual
if (scancode < 8 || scancode > 255)
return GLFW_KEY_UNKNOWN;
{
int dummy;
KeySym* keySyms;
@ -200,7 +196,7 @@ static int translateKeyCode(int scancode)
//
static void createKeyTables(void)
{
int scancode, key;
int scancode, key, scancodeMin, scancodeMax;
memset(_glfw.x11.keycodes, -1, sizeof(_glfw.x11.keycodes));
memset(_glfw.x11.scancodes, -1, sizeof(_glfw.x11.scancodes));
@ -214,8 +210,11 @@ static void createKeyTables(void)
XkbDescPtr desc = XkbGetMap(_glfw.x11.display, 0, XkbUseCoreKbd);
XkbGetNames(_glfw.x11.display, XkbKeyNamesMask, desc);
scancodeMin = desc->min_key_code;
scancodeMax = desc->max_key_code;
// Find the X11 key code -> GLFW key code mapping
for (scancode = desc->min_key_code; scancode <= desc->max_key_code; scancode++)
for (scancode = scancodeMin; scancode <= scancodeMax; scancode++)
{
memcpy(name, desc->names->keys[scancode].name, XkbKeyNameLength);
name[XkbKeyNameLength] = '\0';
@ -345,15 +344,16 @@ static void createKeyTables(void)
else if (strcmp(name, "COMP") == 0) key = GLFW_KEY_MENU;
else key = GLFW_KEY_UNKNOWN;
if ((scancode >= 0) && (scancode < 256))
_glfw.x11.keycodes[scancode] = key;
_glfw.x11.keycodes[scancode] = key;
}
XkbFreeNames(desc, XkbKeyNamesMask, True);
XkbFreeKeyboard(desc, 0, True);
}
else
XDisplayKeycodes(_glfw.x11.display, &scancodeMin, &scancodeMax);
for (scancode = 0; scancode < 256; scancode++)
for (scancode = scancodeMin; scancode <= scancodeMax; scancode++)
{
// Translate the un-translated key codes using traditional X11 KeySym
// lookups
@ -1069,6 +1069,8 @@ int _glfwPlatformInit(void)
_glfw_dlsym(_glfw.x11.xlib.handle, "XDestroyIC");
_glfw.x11.xlib.DestroyWindow = (PFN_XDestroyWindow)
_glfw_dlsym(_glfw.x11.xlib.handle, "XDestroyWindow");
_glfw.x11.xlib.DisplayKeycodes = (PFN_XDisplayKeycodes)
_glfw_dlsym(_glfw.x11.xlib.handle, "XDisplayKeycodes");
_glfw.x11.xlib.EventsQueued = (PFN_XEventsQueued)
_glfw_dlsym(_glfw.x11.xlib.handle, "XEventsQueued");
_glfw.x11.xlib.FilterEvent = (PFN_XFilterEvent)

3
src/x11_platform.h
View File

@ -67,6 +67,7 @@ typedef int (* PFN_XDeleteContext)(Display*,XID,XContext);
typedef int (* PFN_XDeleteProperty)(Display*,Window,Atom);
typedef void (* PFN_XDestroyIC)(XIC);
typedef int (* PFN_XDestroyWindow)(Display*,Window);
typedef int (* PFN_XDisplayKeycodes)(Display*,int*,int*);
typedef int (* PFN_XEventsQueued)(Display*,int);
typedef Bool (* PFN_XFilterEvent)(XEvent*,Window);
typedef int (* PFN_XFindContext)(Display*,XID,XContext,XPointer*);
@ -166,6 +167,7 @@ typedef void (* PFN_Xutf8SetWMProperties)(Display*,Window,const char*,const char
#define XDeleteProperty _glfw.x11.xlib.DeleteProperty
#define XDestroyIC _glfw.x11.xlib.DestroyIC
#define XDestroyWindow _glfw.x11.xlib.DestroyWindow
#define XDisplayKeycodes _glfw.x11.xlib.DisplayKeycodes
#define XEventsQueued _glfw.x11.xlib.EventsQueued
#define XFilterEvent _glfw.x11.xlib.FilterEvent
#define XFindContext _glfw.x11.xlib.FindContext
@ -522,6 +524,7 @@ typedef struct _GLFWlibraryX11
PFN_XDeleteProperty DeleteProperty;
PFN_XDestroyIC DestroyIC;
PFN_XDestroyWindow DestroyWindow;
PFN_XDisplayKeycodes DisplayKeycodes;
PFN_XEventsQueued EventsQueued;
PFN_XFilterEvent FilterEvent;
PFN_XFindContext FindContext;