You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
1819 lines
60 KiB
1819 lines
60 KiB
//======================================================================== |
|
// GLFW - An OpenGL framework |
|
// Platform: X11/GLX |
|
// API version: 3.0 |
|
// WWW: http://www.glfw.org/ |
|
//------------------------------------------------------------------------ |
|
// Copyright (c) 2002-2006 Marcus Geelnard |
|
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org> |
|
// |
|
// This software is provided 'as-is', without any express or implied |
|
// warranty. In no event will the authors be held liable for any damages |
|
// arising from the use of this software. |
|
// |
|
// Permission is granted to anyone to use this software for any purpose, |
|
// including commercial applications, and to alter it and redistribute it |
|
// freely, subject to the following restrictions: |
|
// |
|
// 1. The origin of this software must not be misrepresented; you must not |
|
// claim that you wrote the original software. If you use this software |
|
// in a product, an acknowledgment in the product documentation would |
|
// be appreciated but is not required. |
|
// |
|
// 2. Altered source versions must be plainly marked as such, and must not |
|
// be misrepresented as being the original software. |
|
// |
|
// 3. This notice may not be removed or altered from any source |
|
// distribution. |
|
// |
|
//======================================================================== |
|
|
|
#include "internal.h" |
|
|
|
#include <limits.h> |
|
|
|
|
|
/* Define GLX 1.4 FSAA tokens if not already defined */ |
|
#ifndef GLX_VERSION_1_4 |
|
|
|
#define GLX_SAMPLE_BUFFERS 100000 |
|
#define GLX_SAMPLES 100001 |
|
|
|
#endif /*GLX_VERSION_1_4*/ |
|
|
|
// Action for EWMH client messages |
|
#define _NET_WM_STATE_REMOVE 0 |
|
#define _NET_WM_STATE_ADD 1 |
|
#define _NET_WM_STATE_TOGGLE 2 |
|
|
|
|
|
//************************************************************************ |
|
//**** GLFW internal functions **** |
|
//************************************************************************ |
|
|
|
//======================================================================== |
|
// Checks whether the event is a MapNotify for the specified window |
|
//======================================================================== |
|
|
|
static Bool isMapNotify( Display *d, XEvent *e, char *arg ) |
|
{ |
|
return (e->type == MapNotify) && (e->xmap.window == (Window)arg); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Retrieve a single window property of the specified type |
|
// Inspired by fghGetWindowProperty from freeglut |
|
//======================================================================== |
|
|
|
static unsigned long getWindowProperty( Window window, |
|
Atom property, |
|
Atom type, |
|
unsigned char** value ) |
|
{ |
|
Atom actualType; |
|
int actualFormat; |
|
unsigned long itemCount, bytesAfter; |
|
|
|
XGetWindowProperty( _glfwLibrary.display, |
|
window, |
|
property, |
|
0, |
|
LONG_MAX, |
|
False, |
|
type, |
|
&actualType, |
|
&actualFormat, |
|
&itemCount, |
|
&bytesAfter, |
|
value ); |
|
|
|
if( actualType != type ) |
|
return 0; |
|
|
|
return itemCount; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Check whether the specified atom is supported |
|
//======================================================================== |
|
|
|
static Atom getSupportedAtom( Atom* supportedAtoms, |
|
unsigned long atomCount, |
|
const char* atomName ) |
|
{ |
|
Atom atom = XInternAtom( _glfwLibrary.display, atomName, True ); |
|
if( atom != None ) |
|
{ |
|
unsigned long i; |
|
|
|
for( i = 0; i < atomCount; i++ ) |
|
{ |
|
if( supportedAtoms[i] == atom ) |
|
return atom; |
|
} |
|
} |
|
|
|
return None; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Check whether the running window manager is EWMH-compliant |
|
//======================================================================== |
|
|
|
static GLboolean checkForEWMH( void ) |
|
{ |
|
Window *windowFromRoot = NULL; |
|
Window *windowFromChild = NULL; |
|
|
|
// Hey kids; let's see if the window manager supports EWMH! |
|
|
|
// First we need a couple of atoms, which should already be there |
|
Atom supportingWmCheck = XInternAtom( _glfwLibrary.display, |
|
"_NET_SUPPORTING_WM_CHECK", |
|
True ); |
|
Atom wmSupported = XInternAtom( _glfwLibrary.display, |
|
"_NET_SUPPORTED", |
|
True ); |
|
if( supportingWmCheck == None || wmSupported == None ) |
|
return GL_FALSE; |
|
|
|
// Then we look for the _NET_SUPPORTING_WM_CHECK property of the root window |
|
if( getWindowProperty( _glfwWin.root, |
|
supportingWmCheck, |
|
XA_WINDOW, |
|
(unsigned char**) &windowFromRoot ) != 1 ) |
|
{ |
|
XFree( windowFromRoot ); |
|
return GL_FALSE; |
|
} |
|
|
|
// It should be the ID of a child window (of the root) |
|
// Then we look for the same property on the child window |
|
if( getWindowProperty( *windowFromRoot, |
|
supportingWmCheck, |
|
XA_WINDOW, |
|
(unsigned char**) &windowFromChild ) != 1 ) |
|
{ |
|
XFree( windowFromRoot ); |
|
XFree( windowFromChild ); |
|
return GL_FALSE; |
|
} |
|
|
|
// It should be the ID of that same child window |
|
if( *windowFromRoot != *windowFromChild ) |
|
{ |
|
XFree( windowFromRoot ); |
|
XFree( windowFromChild ); |
|
return GL_FALSE; |
|
} |
|
|
|
XFree( windowFromRoot ); |
|
XFree( windowFromChild ); |
|
|
|
// We are now fairly sure that an EWMH-compliant window manager is running |
|
|
|
Atom *supportedAtoms; |
|
unsigned long atomCount; |
|
|
|
// Now we need to check the _NET_SUPPORTED property of the root window |
|
atomCount = getWindowProperty( _glfwWin.root, |
|
wmSupported, |
|
XA_ATOM, |
|
(unsigned char**) &supportedAtoms ); |
|
|
|
// See which of the atoms we support that are supported by the WM |
|
|
|
_glfwWin.wmState = getSupportedAtom( supportedAtoms, |
|
atomCount, |
|
"_NET_WM_STATE" ); |
|
|
|
_glfwWin.wmStateFullscreen = getSupportedAtom( supportedAtoms, |
|
atomCount, |
|
"_NET_WM_STATE_FULLSCREEN" ); |
|
|
|
_glfwWin.wmPing = getSupportedAtom( supportedAtoms, |
|
atomCount, |
|
"_NET_WM_PING" ); |
|
|
|
_glfwWin.wmActiveWindow = getSupportedAtom( supportedAtoms, |
|
atomCount, |
|
"_NET_ACTIVE_WINDOW" ); |
|
|
|
XFree( supportedAtoms ); |
|
|
|
return GL_TRUE; |
|
} |
|
|
|
//======================================================================== |
|
// Translates an X Window key to internal coding |
|
//======================================================================== |
|
|
|
static int translateKey( int keycode ) |
|
{ |
|
KeySym key, key_lc, key_uc; |
|
|
|
// Try secondary keysym, for numeric keypad keys |
|
// Note: This way we always force "NumLock = ON", which at least |
|
// enables GLFW users to detect numeric keypad keys |
|
key = XKeycodeToKeysym( _glfwLibrary.display, keycode, 1 ); |
|
switch( key ) |
|
{ |
|
// Numeric keypad |
|
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 |
|
key = XKeycodeToKeysym( _glfwLibrary.display, keycode, 0 ); |
|
switch( key ) |
|
{ |
|
// Special keys (non character keys) |
|
case XK_Escape: return GLFW_KEY_ESC; |
|
case XK_Tab: return GLFW_KEY_TAB; |
|
case XK_Shift_L: return GLFW_KEY_LSHIFT; |
|
case XK_Shift_R: return GLFW_KEY_RSHIFT; |
|
case XK_Control_L: return GLFW_KEY_LCTRL; |
|
case XK_Control_R: return GLFW_KEY_RCTRL; |
|
case XK_Meta_L: |
|
case XK_Alt_L: return GLFW_KEY_LALT; |
|
case XK_Mode_switch: // Mapped to Alt_R on many keyboards |
|
case XK_Meta_R: |
|
case XK_ISO_Level3_Shift: // AltGr on at least some machines |
|
case XK_Alt_R: return GLFW_KEY_RALT; |
|
case XK_Super_L: return GLFW_KEY_LSUPER; |
|
case XK_Super_R: return GLFW_KEY_RSUPER; |
|
case XK_Menu: return GLFW_KEY_MENU; |
|
case XK_Num_Lock: return GLFW_KEY_KP_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_KP_Delete: |
|
case XK_Delete: return GLFW_KEY_DEL; |
|
case XK_BackSpace: return GLFW_KEY_BACKSPACE; |
|
case XK_Return: return GLFW_KEY_ENTER; |
|
case XK_KP_Home: |
|
case XK_Home: return GLFW_KEY_HOME; |
|
case XK_KP_End: |
|
case XK_End: return GLFW_KEY_END; |
|
case XK_KP_Page_Up: |
|
case XK_Page_Up: return GLFW_KEY_PAGEUP; |
|
case XK_KP_Page_Down: |
|
case XK_Page_Down: return GLFW_KEY_PAGEDOWN; |
|
case XK_KP_Insert: |
|
case XK_Insert: return GLFW_KEY_INSERT; |
|
case XK_KP_Left: |
|
case XK_Left: return GLFW_KEY_LEFT; |
|
case XK_KP_Right: |
|
case XK_Right: return GLFW_KEY_RIGHT; |
|
case XK_KP_Down: |
|
case XK_Down: return GLFW_KEY_DOWN; |
|
case XK_KP_Up: |
|
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 (should have been detected in secondary keysym!) |
|
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; |
|
case XK_KP_Equal: return GLFW_KEY_KP_EQUAL; |
|
case XK_KP_Enter: return GLFW_KEY_KP_ENTER; |
|
|
|
// The rest (should be printable keys) |
|
default: |
|
// Make uppercase |
|
XConvertCase( key, &key_lc, &key_uc ); |
|
key = key_uc; |
|
|
|
// Valid ISO 8859-1 character? |
|
if( (key >= 32 && key <= 126) || (key >= 160 && key <= 255) ) |
|
return (int) key; |
|
|
|
return GLFW_KEY_UNKNOWN; |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Translates an X Window event to Unicode |
|
//======================================================================== |
|
|
|
static int translateChar( XKeyEvent *event ) |
|
{ |
|
KeySym keysym; |
|
|
|
// Get X11 keysym |
|
XLookupString( event, NULL, 0, &keysym, NULL ); |
|
|
|
// Convert to Unicode (see x11_keysym2unicode.c) |
|
return (int) _glfwKeySym2Unicode( keysym ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Create a blank cursor (for locked mouse mode) |
|
//======================================================================== |
|
|
|
static Cursor createNULLCursor( Display *display, Window root ) |
|
{ |
|
Pixmap cursormask; |
|
XGCValues xgc; |
|
GC gc; |
|
XColor col; |
|
Cursor cursor; |
|
|
|
cursormask = XCreatePixmap( display, root, 1, 1, 1 ); |
|
xgc.function = GXclear; |
|
gc = XCreateGC( display, cursormask, GCFunction, &xgc ); |
|
XFillRectangle( display, cursormask, gc, 0, 0, 1, 1 ); |
|
col.pixel = 0; |
|
col.red = 0; |
|
col.flags = 4; |
|
cursor = XCreatePixmapCursor( display, cursormask, cursormask, |
|
&col,&col, 0,0 ); |
|
XFreePixmap( display, cursormask ); |
|
XFreeGC( display, gc ); |
|
|
|
return cursor; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Returns the specified attribute of the specified GLXFBConfig |
|
// NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig |
|
//======================================================================== |
|
|
|
static int getFBConfigAttrib( GLXFBConfig fbconfig, int attrib ) |
|
{ |
|
int value; |
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
_glfwWin.GetFBConfigAttribSGIX( _glfwLibrary.display, |
|
fbconfig, attrib, &value ); |
|
} |
|
else |
|
glXGetFBConfigAttrib( _glfwLibrary.display, fbconfig, attrib, &value ); |
|
|
|
return value; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Return a list of available and usable framebuffer configs |
|
//======================================================================== |
|
|
|
static _GLFWfbconfig *getFBConfigs( unsigned int *found ) |
|
{ |
|
GLXFBConfig *fbconfigs; |
|
_GLFWfbconfig *result; |
|
int i, count = 0; |
|
|
|
*found = 0; |
|
|
|
if( _glfwLibrary.glxMajor == 1 && _glfwLibrary.glxMinor < 3 ) |
|
{ |
|
if( !_glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
fprintf( stderr, "GLXFBConfigs are not supported by the X server\n" ); |
|
return NULL; |
|
} |
|
} |
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
fbconfigs = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display, |
|
_glfwWin.screen, |
|
NULL, |
|
&count ); |
|
if( !count ) |
|
{ |
|
fprintf( stderr, "No GLXFBConfigs returned\n" ); |
|
return NULL; |
|
} |
|
} |
|
else |
|
{ |
|
fbconfigs = glXGetFBConfigs( _glfwLibrary.display, _glfwWin.screen, &count ); |
|
if( !count ) |
|
{ |
|
fprintf( stderr, "No GLXFBConfigs returned\n" ); |
|
return NULL; |
|
} |
|
} |
|
|
|
result = (_GLFWfbconfig*) malloc( sizeof(_GLFWfbconfig) * count ); |
|
if( !result ) |
|
{ |
|
fprintf( stderr, "Out of memory\n" ); |
|
return NULL; |
|
} |
|
|
|
for( i = 0; i < count; i++ ) |
|
{ |
|
if( !getFBConfigAttrib( fbconfigs[i], GLX_DOUBLEBUFFER ) || |
|
!getFBConfigAttrib( fbconfigs[i], GLX_VISUAL_ID ) ) |
|
{ |
|
// Only consider double-buffered GLXFBConfigs with associated visuals |
|
continue; |
|
} |
|
|
|
if( !( getFBConfigAttrib( fbconfigs[i], GLX_RENDER_TYPE ) & GLX_RGBA_BIT ) ) |
|
{ |
|
// Only consider RGBA GLXFBConfigs |
|
continue; |
|
} |
|
|
|
if( !( getFBConfigAttrib( fbconfigs[i], GLX_DRAWABLE_TYPE ) & GLX_WINDOW_BIT ) ) |
|
{ |
|
// Only consider window GLXFBConfigs |
|
continue; |
|
} |
|
|
|
result[*found].redBits = getFBConfigAttrib( fbconfigs[i], GLX_RED_SIZE ); |
|
result[*found].greenBits = getFBConfigAttrib( fbconfigs[i], GLX_GREEN_SIZE ); |
|
result[*found].blueBits = getFBConfigAttrib( fbconfigs[i], GLX_BLUE_SIZE ); |
|
|
|
result[*found].alphaBits = getFBConfigAttrib( fbconfigs[i], GLX_ALPHA_SIZE ); |
|
result[*found].depthBits = getFBConfigAttrib( fbconfigs[i], GLX_DEPTH_SIZE ); |
|
result[*found].stencilBits = getFBConfigAttrib( fbconfigs[i], GLX_STENCIL_SIZE ); |
|
|
|
result[*found].accumRedBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_RED_SIZE ); |
|
result[*found].accumGreenBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_GREEN_SIZE ); |
|
result[*found].accumBlueBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_BLUE_SIZE ); |
|
result[*found].accumAlphaBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_ALPHA_SIZE ); |
|
|
|
result[*found].auxBuffers = getFBConfigAttrib( fbconfigs[i], GLX_AUX_BUFFERS ); |
|
result[*found].stereo = getFBConfigAttrib( fbconfigs[i], GLX_STEREO ); |
|
|
|
if( _glfwWin.has_GLX_ARB_multisample ) |
|
result[*found].samples = getFBConfigAttrib( fbconfigs[i], GLX_SAMPLES ); |
|
else |
|
result[*found].samples = 0; |
|
|
|
result[*found].platformID = (GLFWintptr) getFBConfigAttrib( fbconfigs[i], GLX_FBCONFIG_ID ); |
|
|
|
(*found)++; |
|
} |
|
|
|
XFree( fbconfigs ); |
|
|
|
return result; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Create the OpenGL context |
|
//======================================================================== |
|
|
|
#define setGLXattrib( attribs, index, attribName, attribValue ) \ |
|
attribs[index++] = attribName; \ |
|
attribs[index++] = attribValue; |
|
|
|
static int createContext( const _GLFWwndconfig *wndconfig, GLXFBConfigID fbconfigID ) |
|
{ |
|
int attribs[40]; |
|
int flags, dummy, index; |
|
GLXFBConfig *fbconfig; |
|
|
|
// Retrieve the previously selected GLXFBConfig |
|
{ |
|
index = 0; |
|
|
|
setGLXattrib( attribs, index, GLX_FBCONFIG_ID, (int) fbconfigID ); |
|
setGLXattrib( attribs, index, None, None ); |
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
fbconfig = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display, |
|
_glfwWin.screen, |
|
attribs, |
|
&dummy ); |
|
} |
|
else |
|
{ |
|
fbconfig = glXChooseFBConfig( _glfwLibrary.display, |
|
_glfwWin.screen, |
|
attribs, |
|
&dummy ); |
|
} |
|
|
|
if( fbconfig == NULL ) |
|
{ |
|
fprintf(stderr, "Unable to retrieve the selected GLXFBConfig\n"); |
|
return GL_FALSE; |
|
} |
|
} |
|
|
|
// Retrieve the corresponding visual |
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
_glfwWin.visual = _glfwWin.GetVisualFromFBConfigSGIX( _glfwLibrary.display, |
|
*fbconfig ); |
|
} |
|
else |
|
{ |
|
_glfwWin.visual = glXGetVisualFromFBConfig( _glfwLibrary.display, |
|
*fbconfig ); |
|
} |
|
|
|
if( _glfwWin.visual == NULL ) |
|
{ |
|
XFree( fbconfig ); |
|
|
|
fprintf(stderr, "Unable to retrieve visual for GLXFBconfig\n"); |
|
return GL_FALSE; |
|
} |
|
|
|
if( _glfwWin.has_GLX_ARB_create_context ) |
|
{ |
|
index = 0; |
|
|
|
if( wndconfig->glMajor != 1 || wndconfig->glMinor != 0 ) |
|
{ |
|
// Request an explicitly versioned context |
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_MAJOR_VERSION_ARB, wndconfig->glMajor ); |
|
setGLXattrib( attribs, index, GLX_CONTEXT_MINOR_VERSION_ARB, wndconfig->glMinor ); |
|
} |
|
|
|
if( wndconfig->glForward || wndconfig->glDebug ) |
|
{ |
|
flags = 0; |
|
|
|
if( wndconfig->glForward ) |
|
flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB; |
|
|
|
if( wndconfig->glDebug ) |
|
flags |= GLX_CONTEXT_DEBUG_BIT_ARB; |
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_FLAGS_ARB, flags ); |
|
} |
|
|
|
if( wndconfig->glProfile ) |
|
{ |
|
if( !_glfwWin.has_GLX_ARB_create_context_profile ) |
|
{ |
|
fprintf( stderr, "OpenGL profile requested but GLX_ARB_create_context_profile " |
|
"is unavailable\n" ); |
|
return GL_FALSE; |
|
} |
|
|
|
if( wndconfig->glProfile == GLFW_OPENGL_CORE_PROFILE ) |
|
flags = GLX_CONTEXT_CORE_PROFILE_BIT_ARB; |
|
else |
|
flags = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; |
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_PROFILE_MASK_ARB, flags ); |
|
} |
|
|
|
setGLXattrib( attribs, index, None, None ); |
|
|
|
_glfwWin.context = _glfwWin.CreateContextAttribsARB( _glfwLibrary.display, |
|
*fbconfig, |
|
NULL, |
|
True, |
|
attribs ); |
|
} |
|
else |
|
{ |
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
_glfwWin.context = _glfwWin.CreateContextWithConfigSGIX( _glfwLibrary.display, |
|
*fbconfig, |
|
GLX_RGBA_TYPE, |
|
NULL, |
|
True ); |
|
} |
|
else |
|
{ |
|
_glfwWin.context = glXCreateNewContext( _glfwLibrary.display, |
|
*fbconfig, |
|
GLX_RGBA_TYPE, |
|
NULL, |
|
True ); |
|
} |
|
} |
|
|
|
XFree( fbconfig ); |
|
|
|
if( _glfwWin.context == NULL ) |
|
{ |
|
fprintf(stderr, "Unable to create OpenGL context\n"); |
|
return GL_FALSE; |
|
} |
|
|
|
_glfwWin.fbconfigID = fbconfigID; |
|
|
|
return GL_TRUE; |
|
} |
|
|
|
#undef setGLXattrib |
|
|
|
|
|
//======================================================================== |
|
// Initialize GLX-specific extensions |
|
//======================================================================== |
|
|
|
static void initGLXExtensions( void ) |
|
{ |
|
// This needs to include every function pointer loaded below |
|
_glfwWin.SwapIntervalSGI = NULL; |
|
_glfwWin.GetFBConfigAttribSGIX = NULL; |
|
_glfwWin.ChooseFBConfigSGIX = NULL; |
|
_glfwWin.CreateContextWithConfigSGIX = NULL; |
|
_glfwWin.GetVisualFromFBConfigSGIX = NULL; |
|
_glfwWin.CreateContextAttribsARB = NULL; |
|
|
|
// This needs to include every extension used below |
|
_glfwWin.has_GLX_SGIX_fbconfig = GL_FALSE; |
|
_glfwWin.has_GLX_SGI_swap_control = GL_FALSE; |
|
_glfwWin.has_GLX_ARB_multisample = GL_FALSE; |
|
_glfwWin.has_GLX_ARB_create_context = GL_FALSE; |
|
_glfwWin.has_GLX_ARB_create_context_profile = GL_FALSE; |
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_SGI_swap_control" ) ) |
|
{ |
|
_glfwWin.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC) |
|
_glfwPlatformGetProcAddress( "glXSwapIntervalSGI" ); |
|
|
|
if( _glfwWin.SwapIntervalSGI ) |
|
{ |
|
_glfwWin.has_GLX_SGI_swap_control = GL_TRUE; |
|
} |
|
} |
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_SGIX_fbconfig" ) ) |
|
{ |
|
_glfwWin.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC) |
|
_glfwPlatformGetProcAddress( "glXGetFBConfigAttribSGIX" ); |
|
_glfwWin.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC) |
|
_glfwPlatformGetProcAddress( "glXChooseFBConfigSGIX" ); |
|
_glfwWin.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC) |
|
_glfwPlatformGetProcAddress( "glXCreateContextWithConfigSGIX" ); |
|
_glfwWin.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC) |
|
_glfwPlatformGetProcAddress( "glXGetVisualFromFBConfigSGIX" ); |
|
|
|
if( _glfwWin.GetFBConfigAttribSGIX && |
|
_glfwWin.ChooseFBConfigSGIX && |
|
_glfwWin.CreateContextWithConfigSGIX && |
|
_glfwWin.GetVisualFromFBConfigSGIX ) |
|
{ |
|
_glfwWin.has_GLX_SGIX_fbconfig = GL_TRUE; |
|
} |
|
} |
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_multisample" ) ) |
|
{ |
|
_glfwWin.has_GLX_ARB_multisample = GL_TRUE; |
|
} |
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_create_context" ) ) |
|
{ |
|
_glfwWin.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC) |
|
_glfwPlatformGetProcAddress( "glXCreateContextAttribsARB" ); |
|
|
|
if( _glfwWin.CreateContextAttribsARB ) |
|
{ |
|
_glfwWin.has_GLX_ARB_create_context = GL_TRUE; |
|
} |
|
} |
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_create_context_profile" ) ) |
|
{ |
|
_glfwWin.has_GLX_ARB_create_context_profile = GL_TRUE; |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Create the X11 window (and its colormap) |
|
//======================================================================== |
|
|
|
static GLboolean createWindow( int width, int height, |
|
const _GLFWwndconfig *wndconfig ) |
|
{ |
|
XEvent event; |
|
unsigned long wamask; |
|
XSetWindowAttributes wa; |
|
|
|
// Every window needs a colormap |
|
// Create one based on the visual used by the current context |
|
|
|
_glfwWin.colormap = XCreateColormap( _glfwLibrary.display, |
|
_glfwWin.root, |
|
_glfwWin.visual->visual, |
|
AllocNone ); |
|
|
|
// Create the actual window |
|
{ |
|
wamask = CWBorderPixel | CWColormap | CWEventMask; |
|
|
|
wa.colormap = _glfwWin.colormap; |
|
wa.border_pixel = 0; |
|
wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask | |
|
PointerMotionMask | ButtonPressMask | ButtonReleaseMask | |
|
ExposureMask | FocusChangeMask | VisibilityChangeMask; |
|
|
|
if( wndconfig->mode == GLFW_WINDOW ) |
|
{ |
|
// The /only/ reason we are setting the background pixel here is |
|
// that otherwise our window wont get any decorations on systems |
|
// using Compiz on Intel hardware |
|
wa.background_pixel = BlackPixel( _glfwLibrary.display, _glfwWin.screen ); |
|
wamask |= CWBackPixel; |
|
} |
|
|
|
_glfwWin.window = XCreateWindow( |
|
_glfwLibrary.display, |
|
_glfwWin.root, |
|
0, 0, // Upper left corner of this window on root |
|
_glfwWin.width, _glfwWin.height, |
|
0, // Border width |
|
_glfwWin.visual->depth, // Color depth |
|
InputOutput, |
|
_glfwWin.visual->visual, |
|
wamask, |
|
&wa |
|
); |
|
|
|
if( !_glfwWin.window ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
} |
|
|
|
// Check whether an EWMH-compliant window manager is running |
|
_glfwWin.hasEWMH = checkForEWMH(); |
|
|
|
if( _glfwWin.fullscreen && !_glfwWin.hasEWMH ) |
|
{ |
|
// This is the butcher's way of removing window decorations |
|
// Setting the override-redirect attribute on a window makes the window |
|
// manager ignore the window completely (ICCCM, section 4) |
|
// The good thing is that this makes undecorated fullscreen windows |
|
// easy to do; the bad thing is that we have to do everything manually |
|
// and some things (like iconify/restore) won't work at all, as they're |
|
// usually performed by the window manager |
|
|
|
XSetWindowAttributes attributes; |
|
attributes.override_redirect = True; |
|
XChangeWindowAttributes( _glfwLibrary.display, |
|
_glfwWin.window, |
|
CWOverrideRedirect, |
|
&attributes ); |
|
|
|
_glfwWin.overrideRedirect = GL_TRUE; |
|
} |
|
|
|
// Find or create the protocol atom for window close notifications |
|
_glfwWin.wmDeleteWindow = XInternAtom( _glfwLibrary.display, |
|
"WM_DELETE_WINDOW", |
|
False ); |
|
|
|
// Declare the WM protocols we support |
|
{ |
|
int count = 0; |
|
Atom protocols[2]; |
|
|
|
// The WM_DELETE_WINDOW ICCCM protocol |
|
// Basic window close notification protocol |
|
if( _glfwWin.wmDeleteWindow != None ) |
|
{ |
|
protocols[count++] = _glfwWin.wmDeleteWindow; |
|
} |
|
|
|
// The _NET_WM_PING EWMH protocol |
|
// Tells the WM to ping our window and flag us as unresponsive if we |
|
// don't reply within a few seconds |
|
if( _glfwWin.wmPing != None ) |
|
protocols[count++] = _glfwWin.wmPing; |
|
|
|
if( count > 0 ) |
|
{ |
|
XSetWMProtocols( _glfwLibrary.display, _glfwWin.window, |
|
protocols, count ); |
|
} |
|
} |
|
|
|
// Set ICCCM WM_HINTS property |
|
{ |
|
XWMHints *hints = XAllocWMHints(); |
|
if( !hints ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
hints->flags = StateHint; |
|
hints->initial_state = NormalState; |
|
|
|
XSetWMHints( _glfwLibrary.display, _glfwWin.window, hints ); |
|
XFree( hints ); |
|
} |
|
|
|
// Set ICCCM WM_NORMAL_HINTS property (even if no parts are set) |
|
{ |
|
XSizeHints *hints = XAllocSizeHints(); |
|
if( !hints ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
hints->flags = 0; |
|
|
|
if( wndconfig->windowNoResize ) |
|
{ |
|
hints->flags |= (PMinSize | PMaxSize); |
|
hints->min_width = hints->max_width = _glfwWin.width; |
|
hints->min_height = hints->max_height = _glfwWin.height; |
|
} |
|
|
|
XSetWMNormalHints( _glfwLibrary.display, _glfwWin.window, hints ); |
|
XFree( hints ); |
|
} |
|
|
|
_glfwPlatformSetWindowTitle( "GLFW Window" ); |
|
|
|
// Make sure the window is mapped before proceeding |
|
XMapWindow( _glfwLibrary.display, _glfwWin.window ); |
|
XPeekIfEvent( _glfwLibrary.display, &event, isMapNotify, |
|
(char*)_glfwWin.window ); |
|
|
|
return GL_TRUE; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Enter fullscreen mode |
|
//======================================================================== |
|
|
|
static void enterFullscreenMode( void ) |
|
{ |
|
if( !_glfwWin.Saver.changed ) |
|
{ |
|
// Remember old screen saver settings |
|
XGetScreenSaver( _glfwLibrary.display, |
|
&_glfwWin.Saver.timeout, &_glfwWin.Saver.interval, |
|
&_glfwWin.Saver.blanking, &_glfwWin.Saver.exposure ); |
|
|
|
// Disable screen saver |
|
XSetScreenSaver( _glfwLibrary.display, 0, 0, DontPreferBlanking, |
|
DefaultExposures ); |
|
|
|
_glfwWin.Saver.changed = GL_TRUE; |
|
} |
|
|
|
_glfwSetVideoMode( _glfwWin.screen, |
|
&_glfwWin.width, &_glfwWin.height, |
|
&_glfwWin.refreshRate ); |
|
|
|
if( _glfwWin.hasEWMH && |
|
_glfwWin.wmState != None && |
|
_glfwWin.wmStateFullscreen != None ) |
|
{ |
|
if( _glfwWin.wmActiveWindow != None ) |
|
{ |
|
// Ask the window manager to raise and focus the GLFW window |
|
// Only focused windows with the _NET_WM_STATE_FULLSCREEN state end |
|
// up on top of all other windows ("Stacking order" in EWMH spec) |
|
|
|
XEvent event; |
|
memset( &event, 0, sizeof(event) ); |
|
|
|
event.type = ClientMessage; |
|
event.xclient.window = _glfwWin.window; |
|
event.xclient.format = 32; // Data is 32-bit longs |
|
event.xclient.message_type = _glfwWin.wmActiveWindow; |
|
event.xclient.data.l[0] = 1; // Sender is a normal application |
|
event.xclient.data.l[1] = 0; // We don't really know the timestamp |
|
|
|
XSendEvent( _glfwLibrary.display, |
|
_glfwWin.root, |
|
False, |
|
SubstructureNotifyMask | SubstructureRedirectMask, |
|
&event ); |
|
} |
|
|
|
// Ask the window manager to make the GLFW window a fullscreen window |
|
// Fullscreen windows are undecorated and, when focused, are kept |
|
// on top of all other windows |
|
|
|
XEvent event; |
|
memset( &event, 0, sizeof(event) ); |
|
|
|
event.type = ClientMessage; |
|
event.xclient.window = _glfwWin.window; |
|
event.xclient.format = 32; // Data is 32-bit longs |
|
event.xclient.message_type = _glfwWin.wmState; |
|
event.xclient.data.l[0] = _NET_WM_STATE_ADD; |
|
event.xclient.data.l[1] = _glfwWin.wmStateFullscreen; |
|
event.xclient.data.l[2] = 0; // No secondary property |
|
event.xclient.data.l[3] = 1; // Sender is a normal application |
|
|
|
XSendEvent( _glfwLibrary.display, |
|
_glfwWin.root, |
|
False, |
|
SubstructureNotifyMask | SubstructureRedirectMask, |
|
&event ); |
|
} |
|
else if( _glfwWin.overrideRedirect ) |
|
{ |
|
// In override-redirect mode, we have divorced ourselves from the |
|
// window manager, so we need to do everything manually |
|
|
|
XRaiseWindow( _glfwLibrary.display, _glfwWin.window ); |
|
XSetInputFocus( _glfwLibrary.display, _glfwWin.window, |
|
RevertToParent, CurrentTime ); |
|
XMoveWindow( _glfwLibrary.display, _glfwWin.window, 0, 0 ); |
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window, |
|
_glfwWin.width, _glfwWin.height ); |
|
} |
|
|
|
if( _glfwWin.mouseLock ) |
|
_glfwPlatformHideMouseCursor(); |
|
|
|
// HACK: Try to get window inside viewport (for virtual displays) by moving |
|
// the mouse cursor to the upper left corner (and then to the center) |
|
// This hack should be harmless on saner systems as well |
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0, 0,0 ); |
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0, |
|
_glfwWin.width / 2, _glfwWin.height / 2 ); |
|
} |
|
|
|
//======================================================================== |
|
// Leave fullscreen mode |
|
//======================================================================== |
|
|
|
static void leaveFullscreenMode( void ) |
|
{ |
|
_glfwRestoreVideoMode(); |
|
|
|
// Did we change the screen saver setting? |
|
if( _glfwWin.Saver.changed ) |
|
{ |
|
// Restore old screen saver settings |
|
XSetScreenSaver( _glfwLibrary.display, |
|
_glfwWin.Saver.timeout, |
|
_glfwWin.Saver.interval, |
|
_glfwWin.Saver.blanking, |
|
_glfwWin.Saver.exposure ); |
|
|
|
_glfwWin.Saver.changed = GL_FALSE; |
|
} |
|
|
|
if( _glfwWin.hasEWMH && |
|
_glfwWin.wmState != None && |
|
_glfwWin.wmStateFullscreen != None ) |
|
{ |
|
// Ask the window manager to make the GLFW window a normal window |
|
// Normal windows usually have frames and other decorations |
|
|
|
XEvent event; |
|
memset( &event, 0, sizeof(event) ); |
|
|
|
event.type = ClientMessage; |
|
event.xclient.window = _glfwWin.window; |
|
event.xclient.format = 32; // Data is 32-bit longs |
|
event.xclient.message_type = _glfwWin.wmState; |
|
event.xclient.data.l[0] = _NET_WM_STATE_REMOVE; |
|
event.xclient.data.l[1] = _glfwWin.wmStateFullscreen; |
|
event.xclient.data.l[2] = 0; // No secondary property |
|
event.xclient.data.l[3] = 1; // Sender is a normal application |
|
|
|
XSendEvent( _glfwLibrary.display, |
|
_glfwWin.root, |
|
False, |
|
SubstructureNotifyMask | SubstructureRedirectMask, |
|
&event ); |
|
} |
|
|
|
if( _glfwWin.mouseLock ) |
|
_glfwPlatformShowMouseCursor(); |
|
} |
|
|
|
//======================================================================== |
|
// Get and process next X event (called by _glfwPlatformPollEvents) |
|
// Returns GL_TRUE if a window close request was received |
|
//======================================================================== |
|
|
|
static GLboolean processSingleEvent( void ) |
|
{ |
|
XEvent event; |
|
XNextEvent( _glfwLibrary.display, &event ); |
|
|
|
switch( event.type ) |
|
{ |
|
case KeyPress: |
|
{ |
|
// A keyboard key was pressed |
|
|
|
// Translate and report key press |
|
_glfwInputKey( translateKey( event.xkey.keycode ), GLFW_PRESS ); |
|
|
|
// Translate and report character input |
|
if( _glfwWin.charCallback ) |
|
{ |
|
_glfwInputChar( translateChar( &event.xkey ), GLFW_PRESS ); |
|
} |
|
break; |
|
} |
|
|
|
case KeyRelease: |
|
{ |
|
// A keyboard key was released |
|
|
|
// Do not report key releases for key repeats. 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( _glfwLibrary.display, QueuedAfterReading ) ) |
|
{ |
|
XEvent nextEvent; |
|
XPeekEvent( _glfwLibrary.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 ) |
|
{ |
|
// Do not report anything for this event |
|
break; |
|
} |
|
} |
|
} |
|
|
|
// Translate and report key release |
|
_glfwInputKey( translateKey( event.xkey.keycode ), GLFW_RELEASE ); |
|
|
|
// Translate and report character input |
|
if( _glfwWin.charCallback ) |
|
_glfwInputChar( translateChar( &event.xkey ), GLFW_RELEASE ); |
|
|
|
break; |
|
} |
|
|
|
case ButtonPress: |
|
{ |
|
// A mouse button was pressed or a scrolling event occurred |
|
|
|
if( event.xbutton.button == Button1 ) |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS ); |
|
else if( event.xbutton.button == Button2 ) |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS ); |
|
else if( event.xbutton.button == Button3 ) |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS ); |
|
|
|
// XFree86 3.3.2 and later translates mouse wheel up/down into |
|
// mouse button 4 & 5 presses |
|
else if( event.xbutton.button == Button4 ) |
|
{ |
|
_glfwInput.WheelPos++; // To verify: is this up or down? |
|
if( _glfwWin.mouseWheelCallback ) |
|
_glfwWin.mouseWheelCallback( _glfwInput.WheelPos ); |
|
} |
|
else if( event.xbutton.button == Button5 ) |
|
{ |
|
_glfwInput.WheelPos--; |
|
if( _glfwWin.mouseWheelCallback ) |
|
_glfwWin.mouseWheelCallback( _glfwInput.WheelPos ); |
|
} |
|
break; |
|
} |
|
|
|
case ButtonRelease: |
|
{ |
|
// A mouse button was released |
|
|
|
if( event.xbutton.button == Button1 ) |
|
{ |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_LEFT, |
|
GLFW_RELEASE ); |
|
} |
|
else if( event.xbutton.button == Button2 ) |
|
{ |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_MIDDLE, |
|
GLFW_RELEASE ); |
|
} |
|
else if( event.xbutton.button == Button3 ) |
|
{ |
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_RIGHT, |
|
GLFW_RELEASE ); |
|
} |
|
break; |
|
} |
|
|
|
case MotionNotify: |
|
{ |
|
// The mouse cursor was moved |
|
|
|
if( event.xmotion.x != _glfwInput.CursorPosX || |
|
event.xmotion.y != _glfwInput.CursorPosY ) |
|
{ |
|
// The mouse cursor was moved and we didn't do it |
|
|
|
if( _glfwWin.mouseLock ) |
|
{ |
|
if( _glfwWin.pointerHidden ) |
|
{ |
|
_glfwInput.MousePosX += event.xmotion.x - |
|
_glfwInput.CursorPosX; |
|
_glfwInput.MousePosY += event.xmotion.y - |
|
_glfwInput.CursorPosY; |
|
} |
|
} |
|
else |
|
{ |
|
_glfwInput.MousePosX = event.xmotion.x; |
|
_glfwInput.MousePosY = event.xmotion.y; |
|
} |
|
|
|
_glfwInput.CursorPosX = event.xmotion.x; |
|
_glfwInput.CursorPosY = event.xmotion.y; |
|
_glfwInput.MouseMoved = GL_TRUE; |
|
|
|
if( _glfwWin.mousePosCallback ) |
|
{ |
|
_glfwWin.mousePosCallback( _glfwInput.MousePosX, |
|
_glfwInput.MousePosY ); |
|
} |
|
} |
|
break; |
|
} |
|
|
|
case ConfigureNotify: |
|
{ |
|
if( event.xconfigure.width != _glfwWin.width || |
|
event.xconfigure.height != _glfwWin.height ) |
|
{ |
|
// The window was resized |
|
|
|
_glfwWin.width = event.xconfigure.width; |
|
_glfwWin.height = event.xconfigure.height; |
|
if( _glfwWin.windowSizeCallback ) |
|
{ |
|
_glfwWin.windowSizeCallback( _glfwWin.width, |
|
_glfwWin.height ); |
|
} |
|
} |
|
break; |
|
} |
|
|
|
case ClientMessage: |
|
{ |
|
if( (Atom) event.xclient.data.l[ 0 ] == _glfwWin.wmDeleteWindow ) |
|
{ |
|
// The window manager was asked to close the window, for example by |
|
// the user pressing a 'close' window decoration button |
|
|
|
return GL_TRUE; |
|
} |
|
else if( _glfwWin.wmPing != None && |
|
(Atom) event.xclient.data.l[ 0 ] == _glfwWin.wmPing ) |
|
{ |
|
// The window manager is pinging us to make sure we are still |
|
// responding to events |
|
|
|
event.xclient.window = _glfwWin.root; |
|
XSendEvent( _glfwLibrary.display, |
|
event.xclient.window, |
|
False, |
|
SubstructureNotifyMask | SubstructureRedirectMask, |
|
&event ); |
|
} |
|
|
|
break; |
|
} |
|
|
|
case MapNotify: |
|
{ |
|
// The window was mapped |
|
|
|
_glfwWin.iconified = GL_FALSE; |
|
break; |
|
} |
|
|
|
case UnmapNotify: |
|
{ |
|
// The window was unmapped |
|
|
|
_glfwWin.iconified = GL_TRUE; |
|
break; |
|
} |
|
|
|
case FocusIn: |
|
{ |
|
// The window gained focus |
|
|
|
_glfwWin.active = GL_TRUE; |
|
|
|
if( _glfwWin.mouseLock ) |
|
_glfwPlatformHideMouseCursor(); |
|
|
|
break; |
|
} |
|
|
|
case FocusOut: |
|
{ |
|
// The window lost focus |
|
|
|
_glfwWin.active = GL_FALSE; |
|
_glfwInputDeactivation(); |
|
|
|
if( _glfwWin.mouseLock ) |
|
_glfwPlatformShowMouseCursor(); |
|
|
|
break; |
|
} |
|
|
|
case Expose: |
|
{ |
|
// The window's contents was damaged |
|
|
|
if( _glfwWin.windowRefreshCallback ) |
|
_glfwWin.windowRefreshCallback(); |
|
|
|
break; |
|
} |
|
|
|
// Was the window destroyed? |
|
case DestroyNotify: |
|
return GL_FALSE; |
|
|
|
default: |
|
{ |
|
#if defined( _GLFW_HAS_XRANDR ) |
|
switch( event.type - _glfwLibrary.XRandR.eventBase ) |
|
{ |
|
case RRScreenChangeNotify: |
|
{ |
|
// Show XRandR that we really care |
|
XRRUpdateConfiguration( &event ); |
|
break; |
|
} |
|
} |
|
#endif |
|
break; |
|
} |
|
} |
|
|
|
// The window was not destroyed |
|
return GL_FALSE; |
|
} |
|
|
|
|
|
|
|
//************************************************************************ |
|
//**** Platform implementation functions **** |
|
//************************************************************************ |
|
|
|
//======================================================================== |
|
// Here is where the window is created, and |
|
// the OpenGL rendering context is created |
|
//======================================================================== |
|
|
|
int _glfwPlatformOpenWindow( int width, int height, |
|
const _GLFWwndconfig* wndconfig, |
|
const _GLFWfbconfig* fbconfig ) |
|
{ |
|
_GLFWfbconfig closest; |
|
|
|
// Clear platform specific GLFW window state |
|
_glfwWin.visual = (XVisualInfo*)NULL; |
|
_glfwWin.colormap = (Colormap)0; |
|
_glfwWin.context = (GLXContext)NULL; |
|
_glfwWin.window = (Window)0; |
|
_glfwWin.pointerGrabbed = GL_FALSE; |
|
_glfwWin.pointerHidden = GL_FALSE; |
|
_glfwWin.keyboardGrabbed = GL_FALSE; |
|
_glfwWin.overrideRedirect = GL_FALSE; |
|
_glfwWin.FS.modeChanged = GL_FALSE; |
|
_glfwWin.Saver.changed = GL_FALSE; |
|
_glfwWin.refreshRate = wndconfig->refreshRate; |
|
_glfwWin.windowNoResize = wndconfig->windowNoResize; |
|
|
|
_glfwWin.wmDeleteWindow = None; |
|
_glfwWin.wmPing = None; |
|
_glfwWin.wmState = None; |
|
_glfwWin.wmStateFullscreen = None; |
|
_glfwWin.wmActiveWindow = None; |
|
|
|
// As the 2.x API doesn't understand multiple display devices, we hardcode |
|
// this choice and hope for the best |
|
_glfwWin.screen = DefaultScreen( _glfwLibrary.display ); |
|
_glfwWin.root = RootWindow( _glfwLibrary.display, _glfwWin.screen ); |
|
|
|
// Create the invisible cursor for hidden cursor mode |
|
_glfwWin.cursor = createNULLCursor( _glfwLibrary.display, _glfwWin.root ); |
|
|
|
initGLXExtensions(); |
|
|
|
// Choose the best available fbconfig |
|
{ |
|
unsigned int fbcount; |
|
_GLFWfbconfig *fbconfigs; |
|
const _GLFWfbconfig *result; |
|
|
|
fbconfigs = getFBConfigs( &fbcount ); |
|
if( !fbconfigs ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
result = _glfwChooseFBConfig( fbconfig, fbconfigs, fbcount ); |
|
if( !result ) |
|
{ |
|
free( fbconfigs ); |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
closest = *result; |
|
free( fbconfigs ); |
|
} |
|
|
|
if( !createContext( wndconfig, (GLXFBConfigID) closest.platformID ) ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
if( !createWindow( width, height, wndconfig ) ) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
if( wndconfig->mode == GLFW_FULLSCREEN ) |
|
{ |
|
#if defined( _GLFW_HAS_XRANDR ) |
|
// Request screen change notifications |
|
if( _glfwLibrary.XRandR.available ) |
|
{ |
|
XRRSelectInput( _glfwLibrary.display, |
|
_glfwWin.window, |
|
RRScreenChangeNotifyMask ); |
|
} |
|
#endif |
|
enterFullscreenMode(); |
|
} |
|
|
|
// Process the window map event and any other that may have arrived |
|
_glfwPlatformPollEvents(); |
|
|
|
// Retrieve and set initial cursor position |
|
{ |
|
Window window, root; |
|
int windowX, windowY, rootX, rootY; |
|
unsigned int mask; |
|
|
|
XQueryPointer( _glfwLibrary.display, |
|
_glfwWin.window, |
|
&root, |
|
&window, |
|
&rootX, &rootY, |
|
&windowX, &windowY, |
|
&mask ); |
|
|
|
// TODO: Probably check for some corner cases here. |
|
|
|
_glfwInput.MousePosX = windowX; |
|
_glfwInput.MousePosY = windowY; |
|
} |
|
|
|
// Connect the context to the window |
|
glXMakeCurrent( _glfwLibrary.display, _glfwWin.window, _glfwWin.context ); |
|
|
|
return GL_TRUE; |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Properly kill the window/video display |
|
//======================================================================== |
|
|
|
void _glfwPlatformCloseWindow( void ) |
|
{ |
|
if( _glfwWin.fullscreen ) |
|
leaveFullscreenMode(); |
|
|
|
if( _glfwWin.context ) |
|
{ |
|
// Release and destroy the context |
|
glXMakeCurrent( _glfwLibrary.display, None, NULL ); |
|
glXDestroyContext( _glfwLibrary.display, _glfwWin.context ); |
|
_glfwWin.context = NULL; |
|
} |
|
|
|
if( _glfwWin.visual ) |
|
{ |
|
XFree( _glfwWin.visual ); |
|
_glfwWin.visual = NULL; |
|
} |
|
|
|
if( _glfwWin.window ) |
|
{ |
|
XUnmapWindow( _glfwLibrary.display, _glfwWin.window ); |
|
XDestroyWindow( _glfwLibrary.display, _glfwWin.window ); |
|
_glfwWin.window = (Window) 0; |
|
} |
|
|
|
if( _glfwWin.colormap ) |
|
{ |
|
XFreeColormap( _glfwLibrary.display, _glfwWin.colormap ); |
|
_glfwWin.colormap = (Colormap) 0; |
|
} |
|
|
|
if( _glfwWin.cursor ) |
|
{ |
|
XFreeCursor( _glfwLibrary.display, _glfwWin.cursor ); |
|
_glfwWin.cursor = (Cursor) 0; |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Set the window title |
|
//======================================================================== |
|
|
|
void _glfwPlatformSetWindowTitle( const char *title ) |
|
{ |
|
// Set window & icon title |
|
XStoreName( _glfwLibrary.display, _glfwWin.window, title ); |
|
XSetIconName( _glfwLibrary.display, _glfwWin.window, title ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Set the window size |
|
//======================================================================== |
|
|
|
void _glfwPlatformSetWindowSize( int width, int height ) |
|
{ |
|
int mode = 0, rate, sizeChanged = GL_FALSE; |
|
XSizeHints *sizehints; |
|
|
|
rate = _glfwWin.refreshRate; |
|
|
|
if( _glfwWin.fullscreen ) |
|
{ |
|
// Get the closest matching video mode for the specified window size |
|
mode = _glfwGetClosestVideoMode( _glfwWin.screen, &width, &height, &rate ); |
|
} |
|
|
|
if( _glfwWin.windowNoResize ) |
|
{ |
|
// Update window size restrictions to match new window size |
|
|
|
sizehints = XAllocSizeHints(); |
|
sizehints->flags = 0; |
|
|
|
sizehints->min_width = sizehints->max_width = width; |
|
sizehints->min_height = sizehints->max_height = height; |
|
|
|
XSetWMNormalHints( _glfwLibrary.display, _glfwWin.window, sizehints ); |
|
XFree( sizehints ); |
|
} |
|
|
|
// Change window size before changing fullscreen mode? |
|
if( _glfwWin.fullscreen && (width > _glfwWin.width) ) |
|
{ |
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window, width, height ); |
|
sizeChanged = GL_TRUE; |
|
} |
|
|
|
if( _glfwWin.fullscreen ) |
|
{ |
|
// Change video mode, keeping current refresh rate |
|
_glfwSetVideoModeMODE( _glfwWin.screen, mode, _glfwWin.refreshRate ); |
|
} |
|
|
|
// Set window size (if not already changed) |
|
if( !sizeChanged ) |
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window, width, height ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Set the window position. |
|
//======================================================================== |
|
|
|
void _glfwPlatformSetWindowPos( int x, int y ) |
|
{ |
|
XMoveWindow( _glfwLibrary.display, _glfwWin.window, x, y ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Window iconification |
|
//======================================================================== |
|
|
|
void _glfwPlatformIconifyWindow( void ) |
|
{ |
|
if( _glfwWin.overrideRedirect ) |
|
{ |
|
// We can't iconify/restore override-redirect windows, as that's |
|
// performed by the window manager |
|
return; |
|
} |
|
|
|
XIconifyWindow( _glfwLibrary.display, _glfwWin.window, _glfwWin.screen ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Window un-iconification |
|
//======================================================================== |
|
|
|
void _glfwPlatformRestoreWindow( void ) |
|
{ |
|
if( _glfwWin.overrideRedirect ) |
|
{ |
|
// We can't iconify/restore override-redirect windows, as that's |
|
// performed by the window manager |
|
return; |
|
} |
|
|
|
XMapWindow( _glfwLibrary.display, _glfwWin.window ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Swap OpenGL buffers and poll any new events |
|
//======================================================================== |
|
|
|
void _glfwPlatformSwapBuffers( void ) |
|
{ |
|
// Update display-buffer |
|
glXSwapBuffers( _glfwLibrary.display, _glfwWin.window ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Set double buffering swap interval |
|
//======================================================================== |
|
|
|
void _glfwPlatformSwapInterval( int interval ) |
|
{ |
|
if( _glfwWin.has_GLX_SGI_swap_control ) |
|
_glfwWin.SwapIntervalSGI( interval ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Read back framebuffer parameters from the context |
|
//======================================================================== |
|
|
|
void _glfwPlatformRefreshWindowParams( void ) |
|
{ |
|
int dummy; |
|
GLXFBConfig *fbconfig; |
|
#if defined( _GLFW_HAS_XRANDR ) |
|
XRRScreenConfiguration *sc; |
|
#elif defined( _GLFW_HAS_XF86VIDMODE ) |
|
XF86VidModeModeLine modeline; |
|
int dotclock; |
|
float pixels_per_second, pixels_per_frame; |
|
#endif |
|
int attribs[] = { GLX_FBCONFIG_ID, _glfwWin.fbconfigID, None }; |
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig ) |
|
{ |
|
fbconfig = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display, |
|
_glfwWin.screen, |
|
attribs, |
|
&dummy ); |
|
} |
|
else |
|
{ |
|
fbconfig = glXChooseFBConfig( _glfwLibrary.display, |
|
_glfwWin.screen, |
|
attribs, |
|
&dummy ); |
|
} |
|
|
|
if( fbconfig == NULL ) |
|
{ |
|
// This should never ever happen |
|
// TODO: Figure out what to do when this happens |
|
fprintf( stderr, "Cannot find known GLXFBConfig by ID. " |
|
"This cannot happen. Have a nice day.\n"); |
|
abort(); |
|
} |
|
|
|
// There is no clear definition of an "accelerated" context on X11/GLX, and |
|
// true sounds better than false, so we hardcode true here |
|
_glfwWin.accelerated = GL_TRUE; |
|
|
|
_glfwWin.redBits = getFBConfigAttrib( *fbconfig, GLX_RED_SIZE ); |
|
_glfwWin.greenBits = getFBConfigAttrib( *fbconfig, GLX_GREEN_SIZE ); |
|
_glfwWin.blueBits = getFBConfigAttrib( *fbconfig, GLX_BLUE_SIZE ); |
|
|
|
_glfwWin.alphaBits = getFBConfigAttrib( *fbconfig, GLX_ALPHA_SIZE ); |
|
_glfwWin.depthBits = getFBConfigAttrib( *fbconfig, GLX_DEPTH_SIZE ); |
|
_glfwWin.stencilBits = getFBConfigAttrib( *fbconfig, GLX_STENCIL_SIZE ); |
|
|
|
_glfwWin.accumRedBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_RED_SIZE ); |
|
_glfwWin.accumGreenBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_GREEN_SIZE ); |
|
_glfwWin.accumBlueBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_BLUE_SIZE ); |
|
_glfwWin.accumAlphaBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_ALPHA_SIZE ); |
|
|
|
_glfwWin.auxBuffers = getFBConfigAttrib( *fbconfig, GLX_AUX_BUFFERS ); |
|
_glfwWin.stereo = getFBConfigAttrib( *fbconfig, GLX_STEREO ) ? 1 : 0; |
|
|
|
// Get FSAA buffer sample count |
|
if( _glfwWin.has_GLX_ARB_multisample ) |
|
_glfwWin.samples = getFBConfigAttrib( *fbconfig, GLX_SAMPLES ); |
|
else |
|
_glfwWin.samples = 0; |
|
|
|
// Default to refresh rate unknown (=0 according to GLFW spec) |
|
_glfwWin.refreshRate = 0; |
|
|
|
// Retrieve refresh rate if possible |
|
#if defined( _GLFW_HAS_XRANDR ) |
|
if( _glfwLibrary.XRandR.available ) |
|
{ |
|
sc = XRRGetScreenInfo( _glfwLibrary.display, _glfwWin.root ); |
|
_glfwWin.refreshRate = XRRConfigCurrentRate( sc ); |
|
XRRFreeScreenConfigInfo( sc ); |
|
} |
|
#elif defined( _GLFW_HAS_XF86VIDMODE ) |
|
if( _glfwLibrary.XF86VidMode.available ) |
|
{ |
|
// Use the XF86VidMode extension to get current video mode |
|
XF86VidModeGetModeLine( _glfwLibrary.display, _glfwWin.screen, |
|
&dotclock, &modeline ); |
|
pixels_per_second = 1000.0f * (float) dotclock; |
|
pixels_per_frame = (float) modeline.htotal * modeline.vtotal; |
|
_glfwWin.refreshRate = (int)(pixels_per_second/pixels_per_frame+0.5); |
|
} |
|
#endif |
|
|
|
XFree( fbconfig ); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Poll for new window and input events |
|
//======================================================================== |
|
|
|
void _glfwPlatformPollEvents( void ) |
|
{ |
|
GLboolean closeRequested = GL_FALSE; |
|
|
|
// Flag that the cursor has not moved |
|
_glfwInput.MouseMoved = GL_FALSE; |
|
|
|
// Process all pending events |
|
while( XPending( _glfwLibrary.display ) ) |
|
{ |
|
if( processSingleEvent() ) |
|
closeRequested = GL_TRUE; |
|
} |
|
|
|
// Did we get mouse movement in fully enabled hidden cursor mode? |
|
if( _glfwInput.MouseMoved && _glfwWin.pointerHidden ) |
|
{ |
|
_glfwPlatformSetMouseCursorPos( _glfwWin.width/2, |
|
_glfwWin.height/2 ); |
|
} |
|
|
|
if( closeRequested && _glfwWin.windowCloseCallback ) |
|
closeRequested = _glfwWin.windowCloseCallback(); |
|
|
|
if( closeRequested ) |
|
glfwCloseWindow(); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Wait for new window and input events |
|
//======================================================================== |
|
|
|
void _glfwPlatformWaitEvents( void ) |
|
{ |
|
XEvent event; |
|
|
|
// Block waiting for an event to arrive |
|
XNextEvent( _glfwLibrary.display, &event ); |
|
XPutBackEvent( _glfwLibrary.display, &event ); |
|
|
|
_glfwPlatformPollEvents(); |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Hide mouse cursor (lock it) |
|
//======================================================================== |
|
|
|
void _glfwPlatformHideMouseCursor( void ) |
|
{ |
|
// Hide cursor |
|
if( !_glfwWin.pointerHidden ) |
|
{ |
|
XDefineCursor( _glfwLibrary.display, _glfwWin.window, _glfwWin.cursor ); |
|
_glfwWin.pointerHidden = GL_TRUE; |
|
} |
|
|
|
// Grab cursor to user window |
|
if( !_glfwWin.pointerGrabbed ) |
|
{ |
|
if( XGrabPointer( _glfwLibrary.display, _glfwWin.window, True, |
|
ButtonPressMask | ButtonReleaseMask | |
|
PointerMotionMask, GrabModeAsync, GrabModeAsync, |
|
_glfwWin.window, None, CurrentTime ) == |
|
GrabSuccess ) |
|
{ |
|
_glfwWin.pointerGrabbed = GL_TRUE; |
|
} |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Show mouse cursor (unlock it) |
|
//======================================================================== |
|
|
|
void _glfwPlatformShowMouseCursor( void ) |
|
{ |
|
// Un-grab cursor (only in windowed mode: in fullscreen mode we still |
|
// want the mouse grabbed in order to confine the cursor to the window |
|
// area) |
|
if( _glfwWin.pointerGrabbed ) |
|
{ |
|
XUngrabPointer( _glfwLibrary.display, CurrentTime ); |
|
_glfwWin.pointerGrabbed = GL_FALSE; |
|
} |
|
|
|
// Show cursor |
|
if( _glfwWin.pointerHidden ) |
|
{ |
|
XUndefineCursor( _glfwLibrary.display, _glfwWin.window ); |
|
_glfwWin.pointerHidden = GL_FALSE; |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// Set physical mouse cursor position |
|
//======================================================================== |
|
|
|
void _glfwPlatformSetMouseCursorPos( int x, int y ) |
|
{ |
|
// Store the new position so we can recognise it later |
|
_glfwInput.CursorPosX = x; |
|
_glfwInput.CursorPosY = y; |
|
|
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0, x, y ); |
|
} |
|
|
|
|