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Moved all the key code translation logic into the LUT (cleaner & less overhead).

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This commit is contained in:
Marcus 2011-01-04 23:07:34 +01:00
parent e3cb563a28
commit 2c169997f5
2 changed files with 277 additions and 259 deletions
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217
src/x11/x11_init.c
View File

@ -62,31 +62,208 @@ static void initLibraries(void)
} }
//========================================================================
// Translate an X11 key code to a GLFW key code.
//========================================================================
static int keyCodeToGLFWKeyCode(int keyCode)
{
int keySym;
// Valid key code range is [8,255], according to the XLib manual
if (keyCode < 8 || keyCode > 255)
return -1;
// Try secondary keysym, for numeric keypad keys
// Note: This way we always force "NumLock = ON", which is intentional
// since the returned key code should correspond to a physical
// location.
keySym = XKeycodeToKeysym(_glfwLibrary.X11.display, keyCode, 1);
switch (keySym)
{
case XK_KP_0: return GLFW_KEY_KP_0;
case XK_KP_1: return GLFW_KEY_KP_1;
case XK_KP_2: return GLFW_KEY_KP_2;
case XK_KP_3: return GLFW_KEY_KP_3;
case XK_KP_4: return GLFW_KEY_KP_4;
case XK_KP_5: return GLFW_KEY_KP_5;
case XK_KP_6: return GLFW_KEY_KP_6;
case XK_KP_7: return GLFW_KEY_KP_7;
case XK_KP_8: return GLFW_KEY_KP_8;
case XK_KP_9: return GLFW_KEY_KP_9;
case XK_KP_Separator:
case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;
case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
default: break;
}
// Now try pimary keysym for function keys (non-printable keys). These
// should not be layout dependent (i.e. US layout and international
// layouts should give the same result).
keySym = XKeycodeToKeysym(_glfwLibrary.X11.display, keyCode, 0);
switch (keySym)
{
case XK_Escape: return GLFW_KEY_ESCAPE;
case XK_Tab: return GLFW_KEY_TAB;
case XK_Shift_L: return GLFW_KEY_LEFT_SHIFT;
case XK_Shift_R: return GLFW_KEY_RIGHT_SHIFT;
case XK_Control_L: return GLFW_KEY_LEFT_CONTROL;
case XK_Control_R: return GLFW_KEY_RIGHT_CONTROL;
case XK_Meta_L:
case XK_Alt_L: return GLFW_KEY_LEFT_ALT;
case XK_Mode_switch: // Mapped to Alt_R on many keyboards
case XK_ISO_Level3_Shift: // AltGr on at least some machines
case XK_Meta_R:
case XK_Alt_R: return GLFW_KEY_RIGHT_ALT;
case XK_Super_L: return GLFW_KEY_LEFT_SUPER;
case XK_Super_R: return GLFW_KEY_RIGHT_SUPER;
case XK_Menu: return GLFW_KEY_MENU;
case XK_Num_Lock: return GLFW_KEY_NUM_LOCK;
case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;
case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;
case XK_Pause: return GLFW_KEY_PAUSE;
case XK_Delete: return GLFW_KEY_DELETE;
case XK_BackSpace: return GLFW_KEY_BACKSPACE;
case XK_Return: return GLFW_KEY_ENTER;
case XK_Home: return GLFW_KEY_HOME;
case XK_End: return GLFW_KEY_END;
case XK_Page_Up: return GLFW_KEY_PAGE_UP;
case XK_Page_Down: return GLFW_KEY_PAGE_DOWN;
case XK_Insert: return GLFW_KEY_INSERT;
case XK_Left: return GLFW_KEY_LEFT;
case XK_Right: return GLFW_KEY_RIGHT;
case XK_Down: return GLFW_KEY_DOWN;
case XK_Up: return GLFW_KEY_UP;
case XK_F1: return GLFW_KEY_F1;
case XK_F2: return GLFW_KEY_F2;
case XK_F3: return GLFW_KEY_F3;
case XK_F4: return GLFW_KEY_F4;
case XK_F5: return GLFW_KEY_F5;
case XK_F6: return GLFW_KEY_F6;
case XK_F7: return GLFW_KEY_F7;
case XK_F8: return GLFW_KEY_F8;
case XK_F9: return GLFW_KEY_F9;
case XK_F10: return GLFW_KEY_F10;
case XK_F11: return GLFW_KEY_F11;
case XK_F12: return GLFW_KEY_F12;
case XK_F13: return GLFW_KEY_F13;
case XK_F14: return GLFW_KEY_F14;
case XK_F15: return GLFW_KEY_F15;
case XK_F16: return GLFW_KEY_F16;
case XK_F17: return GLFW_KEY_F17;
case XK_F18: return GLFW_KEY_F18;
case XK_F19: return GLFW_KEY_F19;
case XK_F20: return GLFW_KEY_F20;
case XK_F21: return GLFW_KEY_F21;
case XK_F22: return GLFW_KEY_F22;
case XK_F23: return GLFW_KEY_F23;
case XK_F24: return GLFW_KEY_F24;
case XK_F25: return GLFW_KEY_F25;
// Numeric keypad
case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;
case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;
case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;
case XK_KP_Add: return GLFW_KEY_KP_ADD;
// These should have been detected in secondary keysym test above!
case XK_KP_Insert: return GLFW_KEY_KP_0;
case XK_KP_End: return GLFW_KEY_KP_1;
case XK_KP_Down: return GLFW_KEY_KP_2;
case XK_KP_Page_Down: return GLFW_KEY_KP_3;
case XK_KP_Left: return GLFW_KEY_KP_4;
case XK_KP_Right: return GLFW_KEY_KP_6;
case XK_KP_Home: return GLFW_KEY_KP_7;
case XK_KP_Up: return GLFW_KEY_KP_8;
case XK_KP_Page_Up: return GLFW_KEY_KP_9;
case XK_KP_Delete: return GLFW_KEY_KP_DECIMAL;
case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
// Last resort: Check for printable keys (should not happen if the XKB
// extension is available). This will give a layout dependent mapping
// (which is wrong, and we may miss some keys, especially on non-US
// keyboards), but it's better than nothing...
case XK_a: return GLFW_KEY_A;
case XK_b: return GLFW_KEY_B;
case XK_c: return GLFW_KEY_C;
case XK_d: return GLFW_KEY_D;
case XK_e: return GLFW_KEY_E;
case XK_f: return GLFW_KEY_F;
case XK_g: return GLFW_KEY_G;
case XK_h: return GLFW_KEY_H;
case XK_i: return GLFW_KEY_I;
case XK_j: return GLFW_KEY_J;
case XK_k: return GLFW_KEY_K;
case XK_l: return GLFW_KEY_L;
case XK_m: return GLFW_KEY_M;
case XK_n: return GLFW_KEY_N;
case XK_o: return GLFW_KEY_O;
case XK_p: return GLFW_KEY_P;
case XK_q: return GLFW_KEY_Q;
case XK_r: return GLFW_KEY_R;
case XK_s: return GLFW_KEY_S;
case XK_t: return GLFW_KEY_T;
case XK_u: return GLFW_KEY_U;
case XK_v: return GLFW_KEY_V;
case XK_w: return GLFW_KEY_W;
case XK_x: return GLFW_KEY_X;
case XK_y: return GLFW_KEY_Y;
case XK_z: return GLFW_KEY_Z;
case XK_1: return GLFW_KEY_1;
case XK_2: return GLFW_KEY_2;
case XK_3: return GLFW_KEY_3;
case XK_4: return GLFW_KEY_4;
case XK_5: return GLFW_KEY_5;
case XK_6: return GLFW_KEY_6;
case XK_7: return GLFW_KEY_7;
case XK_8: return GLFW_KEY_8;
case XK_9: return GLFW_KEY_9;
case XK_0: return GLFW_KEY_0;
case XK_space: return GLFW_KEY_SPACE;
case XK_minus: return GLFW_KEY_MINUS;
case XK_equal: return GLFW_KEY_EQUAL;
case XK_bracketleft: return GLFW_KEY_LEFT_BRACKET;
case XK_bracketright: return GLFW_KEY_RIGHT_BRACKET;
case XK_backslash: return GLFW_KEY_BACKSLASH;
case XK_semicolon: return GLFW_KEY_SEMICOLON;
case XK_apostrophe: return GLFW_KEY_APOSTROPHE;
case XK_grave: return GLFW_KEY_GRAVE_ACCENT;
case XK_comma: return GLFW_KEY_COMMA;
case XK_period: return GLFW_KEY_PERIOD;
case XK_slash: return GLFW_KEY_SLASH;
case XK_less: return GLFW_KEY_WORLD_1; // At least in some layouts...
default: break;
}
// No matching translation was found, so return -1
return -1;
}
//======================================================================== //========================================================================
// Update the key code LUT // Update the key code LUT
//======================================================================== //========================================================================
static void updateKeyCodeLUT(void) static void updateKeyCodeLUT(void)
{ {
#if defined(_GLFW_HAS_XKB) int keyCode;
int keyCode, keyCodeGLFW;
char name[XkbKeyNameLength+1];
XkbDescPtr descr;
#endif
int i;
// Clear the LUT // Clear the LUT
for (i = 0; i < 256; ++i) for (keyCode = 0; keyCode < 256; ++keyCode)
{ {
_glfwLibrary.X11.keyCodeLUT[i] = -1; _glfwLibrary.X11.keyCodeLUT[keyCode] = -1;
} }
#if defined(_GLFW_HAS_XKB) #if defined(_GLFW_HAS_XKB)
// This functionality requires the Xkb extension // If the Xkb extension is available, use it to determine physical key
if (!_glfwLibrary.X11.Xkb.available) // locations independently of the current keyboard layout
if (_glfwLibrary.X11.Xkb.available)
{ {
return; int i, keyCodeGLFW;
} char name[XkbKeyNameLength+1];
XkbDescPtr descr;
// Get keyboard description // Get keyboard description
descr = XkbGetKeyboard(_glfwLibrary.X11.display, descr = XkbGetKeyboard(_glfwLibrary.X11.display,
@ -104,7 +281,9 @@ static void updateKeyCodeLUT(void)
name[XkbKeyNameLength] = 0; name[XkbKeyNameLength] = 0;
// Map the key name to a GLFW key code. Note: We only map printable // Map the key name to a GLFW key code. Note: We only map printable
// keys here, and we use the US keyboard layout. // keys here, and we use the US keyboard layout. The rest of the
// keys (function keys) are mapped using traditional KeySym
// translations.
if (strcmp(name, "TLDE") == 0) keyCodeGLFW = GLFW_KEY_GRAVE_ACCENT; if (strcmp(name, "TLDE") == 0) keyCodeGLFW = GLFW_KEY_GRAVE_ACCENT;
else if (strcmp(name, "AE01") == 0) keyCodeGLFW = GLFW_KEY_1; else if (strcmp(name, "AE01") == 0) keyCodeGLFW = GLFW_KEY_1;
else if (strcmp(name, "AE02") == 0) keyCodeGLFW = GLFW_KEY_2; else if (strcmp(name, "AE02") == 0) keyCodeGLFW = GLFW_KEY_2;
@ -164,7 +343,19 @@ static void updateKeyCodeLUT(void)
// Free the keyboard description // Free the keyboard description
XkbFreeKeyboard(descr, 0, True); XkbFreeKeyboard(descr, 0, True);
}
#endif /* _GLFW_HAS_XKB */ #endif /* _GLFW_HAS_XKB */
// Translate the un-translated key codes using traditional X11 KeySym
// lookups
for (keyCode = 0; keyCode < 256; ++keyCode)
{
if (_glfwLibrary.X11.keyCodeLUT[keyCode] < 0)
{
_glfwLibrary.X11.keyCodeLUT[keyCode] =
keyCodeToGLFWKeyCode(keyCode);
}
}
} }

183
src/x11/x11_window.c
View File

@ -219,189 +219,16 @@ static GLboolean checkForEWMH(_GLFWwindow* window)
static int translateKey(int keycode) static int translateKey(int keycode)
{ {
KeySym key; // Use the pre-filled LUT (see updateKeyCodeLUT() ).
// Try secondary keysym, for numeric keypad keys
// Note: This way we always force "NumLock = ON", which is intentional
// since the returned key code should correspond to a physical
// location.
key = XKeycodeToKeysym(_glfwLibrary.X11.display, keycode, 1);
switch (key)
{
case XK_KP_0: return GLFW_KEY_KP_0;
case XK_KP_1: return GLFW_KEY_KP_1;
case XK_KP_2: return GLFW_KEY_KP_2;
case XK_KP_3: return GLFW_KEY_KP_3;
case XK_KP_4: return GLFW_KEY_KP_4;
case XK_KP_5: return GLFW_KEY_KP_5;
case XK_KP_6: return GLFW_KEY_KP_6;
case XK_KP_7: return GLFW_KEY_KP_7;
case XK_KP_8: return GLFW_KEY_KP_8;
case XK_KP_9: return GLFW_KEY_KP_9;
case XK_KP_Separator:
case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;
case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
default: break;
}
// Now try pimary keysym for function keys (non-printable keys). These
// should not be layout dependent (i.e. US layout and international
// layouts should give the same result).
key = XKeycodeToKeysym(_glfwLibrary.X11.display, keycode, 0);
switch (key)
{
case XK_Escape: return GLFW_KEY_ESCAPE;
case XK_Tab: return GLFW_KEY_TAB;
case XK_Shift_L: return GLFW_KEY_LEFT_SHIFT;
case XK_Shift_R: return GLFW_KEY_RIGHT_SHIFT;
case XK_Control_L: return GLFW_KEY_LEFT_CONTROL;
case XK_Control_R: return GLFW_KEY_RIGHT_CONTROL;
case XK_Meta_L:
case XK_Alt_L: return GLFW_KEY_LEFT_ALT;
case XK_Mode_switch: // Mapped to Alt_R on many keyboards
case XK_ISO_Level3_Shift: // AltGr on at least some machines
case XK_Meta_R:
case XK_Alt_R: return GLFW_KEY_RIGHT_ALT;
case XK_Super_L: return GLFW_KEY_LEFT_SUPER;
case XK_Super_R: return GLFW_KEY_RIGHT_SUPER;
case XK_Menu: return GLFW_KEY_MENU;
case XK_Num_Lock: return GLFW_KEY_NUM_LOCK;
case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;
case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;
case XK_Pause: return GLFW_KEY_PAUSE;
case XK_Delete: return GLFW_KEY_DELETE;
case XK_BackSpace: return GLFW_KEY_BACKSPACE;
case XK_Return: return GLFW_KEY_ENTER;
case XK_Home: return GLFW_KEY_HOME;
case XK_End: return GLFW_KEY_END;
case XK_Page_Up: return GLFW_KEY_PAGE_UP;
case XK_Page_Down: return GLFW_KEY_PAGE_DOWN;
case XK_Insert: return GLFW_KEY_INSERT;
case XK_Left: return GLFW_KEY_LEFT;
case XK_Right: return GLFW_KEY_RIGHT;
case XK_Down: return GLFW_KEY_DOWN;
case XK_Up: return GLFW_KEY_UP;
case XK_F1: return GLFW_KEY_F1;
case XK_F2: return GLFW_KEY_F2;
case XK_F3: return GLFW_KEY_F3;
case XK_F4: return GLFW_KEY_F4;
case XK_F5: return GLFW_KEY_F5;
case XK_F6: return GLFW_KEY_F6;
case XK_F7: return GLFW_KEY_F7;
case XK_F8: return GLFW_KEY_F8;
case XK_F9: return GLFW_KEY_F9;
case XK_F10: return GLFW_KEY_F10;
case XK_F11: return GLFW_KEY_F11;
case XK_F12: return GLFW_KEY_F12;
case XK_F13: return GLFW_KEY_F13;
case XK_F14: return GLFW_KEY_F14;
case XK_F15: return GLFW_KEY_F15;
case XK_F16: return GLFW_KEY_F16;
case XK_F17: return GLFW_KEY_F17;
case XK_F18: return GLFW_KEY_F18;
case XK_F19: return GLFW_KEY_F19;
case XK_F20: return GLFW_KEY_F20;
case XK_F21: return GLFW_KEY_F21;
case XK_F22: return GLFW_KEY_F22;
case XK_F23: return GLFW_KEY_F23;
case XK_F24: return GLFW_KEY_F24;
case XK_F25: return GLFW_KEY_F25;
// Numeric keypad
case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;
case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;
case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;
case XK_KP_Add: return GLFW_KEY_KP_ADD;
// These should have been detected in secondary keysym test above!
case XK_KP_Insert: return GLFW_KEY_KP_0;
case XK_KP_End: return GLFW_KEY_KP_1;
case XK_KP_Down: return GLFW_KEY_KP_2;
case XK_KP_Page_Down: return GLFW_KEY_KP_3;
case XK_KP_Left: return GLFW_KEY_KP_4;
case XK_KP_Right: return GLFW_KEY_KP_6;
case XK_KP_Home: return GLFW_KEY_KP_7;
case XK_KP_Up: return GLFW_KEY_KP_8;
case XK_KP_Page_Up: return GLFW_KEY_KP_9;
case XK_KP_Delete: return GLFW_KEY_KP_DECIMAL;
case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
default: break;
}
// At this point we should only have printable keys left. We try the
// pre-filled LUT first (which is layout independent), which should give
// a positive result if we have the Xkb extension.
if ((keycode >= 0) && (keycode < 256)) if ((keycode >= 0) && (keycode < 256))
{ {
int result = _glfwLibrary.X11.keyCodeLUT[keycode]; return _glfwLibrary.X11.keyCodeLUT[keycode];
if (result >= 0) }
else
{ {
return result;
}
}
// Last resort: Check the pimary keysym for printable keys. This will
// give a layout dependent mapping (which is wrong, and we may miss some
// keys, especially on non-US keyboards), but it's better than nothing...
switch (key)
{
case XK_a: return GLFW_KEY_A;
case XK_b: return GLFW_KEY_B;
case XK_c: return GLFW_KEY_C;
case XK_d: return GLFW_KEY_D;
case XK_e: return GLFW_KEY_E;
case XK_f: return GLFW_KEY_F;
case XK_g: return GLFW_KEY_G;
case XK_h: return GLFW_KEY_H;
case XK_i: return GLFW_KEY_I;
case XK_j: return GLFW_KEY_J;
case XK_k: return GLFW_KEY_K;
case XK_l: return GLFW_KEY_L;
case XK_m: return GLFW_KEY_M;
case XK_n: return GLFW_KEY_N;
case XK_o: return GLFW_KEY_O;
case XK_p: return GLFW_KEY_P;
case XK_q: return GLFW_KEY_Q;
case XK_r: return GLFW_KEY_R;
case XK_s: return GLFW_KEY_S;
case XK_t: return GLFW_KEY_T;
case XK_u: return GLFW_KEY_U;
case XK_v: return GLFW_KEY_V;
case XK_w: return GLFW_KEY_W;
case XK_x: return GLFW_KEY_X;
case XK_y: return GLFW_KEY_Y;
case XK_z: return GLFW_KEY_Z;
case XK_1: return GLFW_KEY_1;
case XK_2: return GLFW_KEY_2;
case XK_3: return GLFW_KEY_3;
case XK_4: return GLFW_KEY_4;
case XK_5: return GLFW_KEY_5;
case XK_6: return GLFW_KEY_6;
case XK_7: return GLFW_KEY_7;
case XK_8: return GLFW_KEY_8;
case XK_9: return GLFW_KEY_9;
case XK_0: return GLFW_KEY_0;
case XK_space: return GLFW_KEY_SPACE;
case XK_minus: return GLFW_KEY_MINUS;
case XK_equal: return GLFW_KEY_EQUAL;
case XK_bracketleft: return GLFW_KEY_LEFT_BRACKET;
case XK_bracketright: return GLFW_KEY_RIGHT_BRACKET;
case XK_backslash: return GLFW_KEY_BACKSLASH;
case XK_semicolon: return GLFW_KEY_SEMICOLON;
case XK_apostrophe: return GLFW_KEY_APOSTROPHE;
case XK_grave: return GLFW_KEY_GRAVE_ACCENT;
case XK_comma: return GLFW_KEY_COMMA;
case XK_period: return GLFW_KEY_PERIOD;
case XK_slash: return GLFW_KEY_SLASH;
case XK_less: return GLFW_KEY_WORLD_1; // At least in some layouts...
default: break;
}
// No matching translation was found, so return -1
return -1; return -1;
} }
}
//======================================================================== //========================================================================