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quake2forge/bsd/gl_glx.c

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/*
Copyright (C) 1997-2001 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
** GLW_IMP.C
**
** This file contains ALL Linux specific stuff having to do with the
** OpenGL refresh. When a port is being made the following functions
** must be implemented by the port:
**
** GLimp_EndFrame
** GLimp_Init
** GLimp_Shutdown
** GLimp_SwitchFullscreen
**
*/
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include "../ref_gl/gl_local.h"
#include "../client/keys.h"
#include "../linux/rw_linux.h"
#include "../linux/glw_linux.h"
#include <GL/glx.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#include <X11/extensions/xf86dga.h>
#include <X11/extensions/xf86vmode.h>
glwstate_t glw_state;
static Display *dpy = NULL;
static int scrnum;
static Window win;
static GLXContext ctx = NULL;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
PointerMotionMask | ButtonMotionMask )
#define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
/*****************************************************************************/
/* MOUSE */
/*****************************************************************************/
// this is inside the renderer shared lib, so these are called from vid_so
static qboolean mouse_avail;
static int mx, my;
static int old_mouse_x, old_mouse_y;
static int win_x, win_y;
static cvar_t *m_filter;
static cvar_t *in_mouse;
static cvar_t *in_dgamouse;
static cvar_t *r_fakeFullscreen;
static XF86VidModeModeInfo **vidmodes;
static int default_dotclock_vidmode;
static int num_vidmodes;
static qboolean vidmode_active = false;
static qboolean mlooking;
static qboolean mouse_active = false;
static qboolean dgamouse = false;
static qboolean vidmode_ext = false;
// state struct passed in Init
static in_state_t *in_state;
static cvar_t *sensitivity;
static cvar_t *lookstrafe;
static cvar_t *m_side;
static cvar_t *m_yaw;
static cvar_t *m_pitch;
static cvar_t *m_forward;
static cvar_t *freelook;
static Cursor CreateNullCursor(Display *display, Window root)
{
Pixmap cursormask;
XGCValues xgc;
GC gc;
XColor dummycolour;
Cursor cursor;
cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
xgc.function = GXclear;
gc = XCreateGC(display, cursormask, GCFunction, &xgc);
XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
dummycolour.pixel = 0;
dummycolour.red = 0;
dummycolour.flags = 04;
cursor = XCreatePixmapCursor(display, cursormask, cursormask,
&dummycolour,&dummycolour, 0,0);
XFreePixmap(display,cursormask);
XFreeGC(display,gc);
return cursor;
}
static void install_grabs(void)
{
// inviso cursor
XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
XGrabPointer(dpy, win,
True,
0,
GrabModeAsync, GrabModeAsync,
win,
None,
CurrentTime);
if (in_dgamouse->value) {
int MajorVersion, MinorVersion;
if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
// unable to query, probalby not supported
ri.Con_Printf( PRINT_ALL, "Failed to detect XF86DGA Mouse\n" );
ri.Cvar_Set( "in_dgamouse", "0" );
} else {
dgamouse = true;
XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
}
} else {
XWarpPointer(dpy, None, win,
0, 0, 0, 0,
vid.width / 2, vid.height / 2);
}
XGrabKeyboard(dpy, win,
False,
GrabModeAsync, GrabModeAsync,
CurrentTime);
mouse_active = true;
// XSync(dpy, True);
}
static void uninstall_grabs(void)
{
if (!dpy || !win)
return;
if (dgamouse) {
dgamouse = false;
XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
}
XUngrabPointer(dpy, CurrentTime);
XUngrabKeyboard(dpy, CurrentTime);
// inviso cursor
XUndefineCursor(dpy, win);
mouse_active = false;
}
static void Force_CenterView_f (void)
{
in_state->viewangles[PITCH] = 0;
}
static void RW_IN_MLookDown (void)
{
mlooking = true;
}
static void RW_IN_MLookUp (void)
{
mlooking = false;
in_state->IN_CenterView_fp ();
}
void RW_IN_Init(in_state_t *in_state_p)
{
int mtype;
int i;
in_state = in_state_p;
// mouse variables
m_filter = ri.Cvar_Get ("m_filter", "0", 0);
in_mouse = ri.Cvar_Get ("in_mouse", "1", CVAR_ARCHIVE);
in_dgamouse = ri.Cvar_Get ("in_dgamouse", "1", CVAR_ARCHIVE);
freelook = ri.Cvar_Get( "freelook", "0", 0 );
lookstrafe = ri.Cvar_Get ("lookstrafe", "0", 0);
sensitivity = ri.Cvar_Get ("sensitivity", "3", 0);
m_pitch = ri.Cvar_Get ("m_pitch", "0.022", 0);
m_yaw = ri.Cvar_Get ("m_yaw", "0.022", 0);
m_forward = ri.Cvar_Get ("m_forward", "1", 0);
m_side = ri.Cvar_Get ("m_side", "0.8", 0);
ri.Cmd_AddCommand ("+mlook", RW_IN_MLookDown);
ri.Cmd_AddCommand ("-mlook", RW_IN_MLookUp);
ri.Cmd_AddCommand ("force_centerview", Force_CenterView_f);
mx = my = 0.0;
mouse_avail = true;
}
void RW_IN_Shutdown(void)
{
if (mouse_avail) {
mouse_avail = false;
ri.Cmd_RemoveCommand ("+mlook");
ri.Cmd_RemoveCommand ("-mlook");
ri.Cmd_RemoveCommand ("force_centerview");
}
}
/*
===========
IN_Commands
===========
*/
void RW_IN_Commands (void)
{
}
/*
===========
IN_Move
===========
*/
void RW_IN_Move (usercmd_t *cmd)
{
if (!mouse_avail)
return;
if (m_filter->value)
{
mx = (mx + old_mouse_x) * 0.5;
my = (my + old_mouse_y) * 0.5;
}
old_mouse_x = mx;
old_mouse_y = my;
mx *= sensitivity->value;
my *= sensitivity->value;
// add mouse X/Y movement to cmd
if ( (*in_state->in_strafe_state & 1) ||
(lookstrafe->value && mlooking ))
cmd->sidemove += m_side->value * mx;
else
in_state->viewangles[YAW] -= m_yaw->value * mx;
if ( (mlooking || freelook->value) &&
!(*in_state->in_strafe_state & 1))
{
in_state->viewangles[PITCH] += m_pitch->value * my;
}
else
{
cmd->forwardmove -= m_forward->value * my;
}
mx = my = 0;
}
static void IN_DeactivateMouse( void )
{
if (!mouse_avail || !dpy || !win)
return;
if (mouse_active) {
uninstall_grabs();
mouse_active = false;
}
}
static void IN_ActivateMouse( void )
{
if (!mouse_avail || !dpy || !win)
return;
if (!mouse_active) {
mx = my = 0; // don't spazz
install_grabs();
mouse_active = true;
}
}
void RW_IN_Frame (void)
{
}
void RW_IN_Activate(qboolean active)
{
if (active || vidmode_active)
IN_ActivateMouse();
else
IN_DeactivateMouse ();
}
/*****************************************************************************/
/* KEYBOARD */
/*****************************************************************************/
static int XLateKey(XKeyEvent *ev)
{
int key;
char buf[64];
KeySym keysym;
key = 0;
XLookupString(ev, buf, sizeof buf, &keysym, 0);
switch(keysym)
{
case XK_KP_Page_Up: key = K_KP_PGUP; break;
case XK_Page_Up: key = K_PGUP; break;
case XK_KP_Page_Down: key = K_KP_PGDN; break;
case XK_Page_Down: key = K_PGDN; break;
case XK_KP_Home: key = K_KP_HOME; break;
case XK_Home: key = K_HOME; break;
case XK_KP_End: key = K_KP_END; break;
case XK_End: key = K_END; break;
case XK_KP_Left: key = K_KP_LEFTARROW; break;
case XK_Left: key = K_LEFTARROW; break;
case XK_KP_Right: key = K_KP_RIGHTARROW; break;
case XK_Right: key = K_RIGHTARROW; break;
case XK_KP_Down: key = K_KP_DOWNARROW; break;
case XK_Down: key = K_DOWNARROW; break;
case XK_KP_Up: key = K_KP_UPARROW; break;
case XK_Up: key = K_UPARROW; break;
case XK_Escape: key = K_ESCAPE; break;
case XK_KP_Enter: key = K_KP_ENTER; break;
case XK_Return: key = K_ENTER; break;
case XK_Tab: key = K_TAB; break;
case XK_F1: key = K_F1; break;
case XK_F2: key = K_F2; break;
case XK_F3: key = K_F3; break;
case XK_F4: key = K_F4; break;
case XK_F5: key = K_F5; break;
case XK_F6: key = K_F6; break;
case XK_F7: key = K_F7; break;
case XK_F8: key = K_F8; break;
case XK_F9: key = K_F9; break;
case XK_F10: key = K_F10; break;
case XK_F11: key = K_F11; break;
case XK_F12: key = K_F12; break;
case XK_BackSpace: key = K_BACKSPACE; break;
case XK_KP_Delete: key = K_KP_DEL; break;
case XK_Delete: key = K_DEL; break;
case XK_Pause: key = K_PAUSE; break;
case XK_Shift_L:
case XK_Shift_R: key = K_SHIFT; break;
case XK_Execute:
case XK_Control_L:
case XK_Control_R: key = K_CTRL; break;
case XK_Alt_L:
case XK_Meta_L:
case XK_Alt_R:
case XK_Meta_R: key = K_ALT; break;
case XK_KP_Begin: key = K_KP_5; break;
case XK_Insert:key = K_INS; break;
case XK_KP_Insert: key = K_KP_INS; break;
case XK_KP_Multiply: key = '*'; break;
case XK_KP_Add: key = K_KP_PLUS; break;
case XK_KP_Subtract: key = K_KP_MINUS; break;
case XK_KP_Divide: key = K_KP_SLASH; break;
#if 0
case 0x021: key = '1';break;/* [!] */
case 0x040: key = '2';break;/* [@] */
case 0x023: key = '3';break;/* [#] */
case 0x024: key = '4';break;/* [$] */
case 0x025: key = '5';break;/* [%] */
case 0x05e: key = '6';break;/* [^] */
case 0x026: key = '7';break;/* [&] */
case 0x02a: key = '8';break;/* [*] */
case 0x028: key = '9';;break;/* [(] */
case 0x029: key = '0';break;/* [)] */
case 0x05f: key = '-';break;/* [_] */
case 0x02b: key = '=';break;/* [+] */
case 0x07c: key = '\'';break;/* [|] */
case 0x07d: key = '[';break;/* [}] */
case 0x07b: key = ']';break;/* [{] */
case 0x022: key = '\'';break;/* ["] */
case 0x03a: key = ';';break;/* [:] */
case 0x03f: key = '/';break;/* [?] */
case 0x03e: key = '.';break;/* [>] */
case 0x03c: key = ',';break;/* [<] */
#endif
default:
key = *(unsigned char*)buf;
if (key >= 'A' && key <= 'Z')
key = key - 'A' + 'a';
if (key >= 1 && key <= 26) /* ctrl+alpha */
key = key + 'a' - 1;
break;
}
return key;
}
static void HandleEvents(void)
{
XEvent event;
int b;
qboolean dowarp = false;
int mwx = vid.width/2;
int mwy = vid.height/2;
if (!dpy)
return;
while (XPending(dpy)) {
XNextEvent(dpy, &event);
switch(event.type) {
case KeyPress:
case KeyRelease:
if (in_state && in_state->Key_Event_fp)
in_state->Key_Event_fp (XLateKey(&event.xkey), event.type == KeyPress);
break;
case MotionNotify:
if (mouse_active) {
if (dgamouse) {
mx += (event.xmotion.x + win_x) * 2;
my += (event.xmotion.y + win_y) * 2;
}
else
{
mx += ((int)event.xmotion.x - mwx) * 2;
my += ((int)event.xmotion.y - mwy) * 2;
mwx = event.xmotion.x;
mwy = event.xmotion.y;
if (mx || my)
dowarp = true;
}
}
break;
case ButtonPress:
b=-1;
if (event.xbutton.button == 1)
b = 0;
else if (event.xbutton.button == 2)
b = 2;
else if (event.xbutton.button == 3)
b = 1;
if (b>=0 && in_state && in_state->Key_Event_fp)
in_state->Key_Event_fp (K_MOUSE1 + b, true);
break;
case ButtonRelease:
b=-1;
if (event.xbutton.button == 1)
b = 0;
else if (event.xbutton.button == 2)
b = 2;
else if (event.xbutton.button == 3)
b = 1;
if (b>=0 && in_state && in_state->Key_Event_fp)
in_state->Key_Event_fp (K_MOUSE1 + b, false);
break;
case CreateNotify :
win_x = event.xcreatewindow.x;
win_y = event.xcreatewindow.y;
break;
case ConfigureNotify :
win_x = event.xconfigure.x;
win_y = event.xconfigure.y;
break;
}
}
if (dowarp) {
/* move the mouse to the window center again */
XWarpPointer(dpy,None,win,0,0,0,0, vid.width/2,vid.height/2);
}
}
Key_Event_fp_t Key_Event_fp;
void KBD_Init(Key_Event_fp_t fp)
{
Key_Event_fp = fp;
}
void KBD_Update(void)
{
// get events from x server
HandleEvents();
}
void KBD_Close(void)
{
}
/*****************************************************************************/
static qboolean GLimp_SwitchFullscreen( int width, int height );
qboolean GLimp_InitGL (void);
static void signal_handler(int sig)
{
printf("Received signal %d, exiting...\n", sig);
GLimp_Shutdown();
_exit(0);
}
static void InitSig(void)
{
signal(SIGHUP, signal_handler);
signal(SIGQUIT, signal_handler);
signal(SIGILL, signal_handler);
signal(SIGTRAP, signal_handler);
signal(SIGIOT, signal_handler);
signal(SIGBUS, signal_handler);
signal(SIGFPE, signal_handler);
signal(SIGSEGV, signal_handler);
signal(SIGTERM, signal_handler);
}
/*
** GLimp_SetMode
*/
int GLimp_SetMode( unsigned int *pwidth, unsigned int *pheight, int mode, qboolean fullscreen )
{
int width, height;
int attrib[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None
};
Window root;
XVisualInfo *visinfo;
XSetWindowAttributes attr;
XSizeHints *sizehints;
unsigned long mask;
int MajorVersion, MinorVersion;
int actualWidth, actualHeight;
int i;
r_fakeFullscreen = ri.Cvar_Get( "r_fakeFullscreen", "0", CVAR_ARCHIVE);
ri.Con_Printf( PRINT_ALL, "Initializing OpenGL display\n");
if (fullscreen)
ri.Con_Printf (PRINT_ALL, "...setting fullscreen mode %d:", mode );
else
ri.Con_Printf (PRINT_ALL, "...setting mode %d:", mode );
if ( !ri.Vid_GetModeInfo( &width, &height, mode ) )
{
ri.Con_Printf( PRINT_ALL, " invalid mode\n" );
return rserr_invalid_mode;
}
ri.Con_Printf( PRINT_ALL, " %d %d\n", width, height );
// destroy the existing window
GLimp_Shutdown ();
#if 0 // this breaks getenv()? - sbf
// Mesa VooDoo hacks
if (fullscreen)
putenv("MESA_GLX_FX=fullscreen");
else
putenv("MESA_GLX_FX=window");
#endif
if (!(dpy = XOpenDisplay(NULL))) {
fprintf(stderr, "Error couldn't open the X display\n");
return rserr_invalid_mode;
}
scrnum = DefaultScreen(dpy);
root = RootWindow(dpy, scrnum);
// Get video mode list
MajorVersion = MinorVersion = 0;
if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
vidmode_ext = false;
} else {
ri.Con_Printf(PRINT_ALL, "Using XFree86-VidModeExtension Version %d.%d\n",
MajorVersion, MinorVersion);
vidmode_ext = true;
}
visinfo = qglXChooseVisual(dpy, scrnum, attrib);
if (!visinfo) {
fprintf(stderr, "Error couldn't get an RGB, Double-buffered, Depth visual\n");
return rserr_invalid_mode;
}
if (vidmode_ext) {
int best_fit, best_dist, dist, x, y;
XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
// Are we going fullscreen? If so, let's change video mode
if (fullscreen && !r_fakeFullscreen->value) {
best_dist = 9999999;
best_fit = -1;
for (i = 0; i < num_vidmodes; i++) {
if (width > vidmodes[i]->hdisplay ||
height > vidmodes[i]->vdisplay)
continue;
x = width - vidmodes[i]->hdisplay;
y = height - vidmodes[i]->vdisplay;
dist = (x * x) + (y * y);
if (dist < best_dist) {
best_dist = dist;
best_fit = i;
}
}
if (best_fit != -1) {
actualWidth = vidmodes[best_fit]->hdisplay;
actualHeight = vidmodes[best_fit]->vdisplay;
// change to the mode
XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
vidmode_active = true;
// Move the viewport to top left
XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
} else
fullscreen = 0;
}
}
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
attr.event_mask = X_MASK;
if (vidmode_active) {
mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore |
CWEventMask | CWOverrideRedirect;
attr.override_redirect = True;
attr.backing_store = NotUseful;
attr.save_under = False;
} else
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow(dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
sizehints = XAllocSizeHints();
if (sizehints) {
sizehints->min_width = width;
sizehints->min_height = height;
sizehints->max_width = width;
sizehints->max_height = height;
sizehints->base_width = width;
sizehints->base_height = vid.height;
sizehints->flags = PMinSize | PMaxSize | PBaseSize;
}
XSetWMProperties(dpy, win, NULL, NULL, NULL, 0,
sizehints, None, None);
if (sizehints)
XFree(sizehints);
XMapWindow(dpy, win);
if (vidmode_active) {
XMoveWindow(dpy, win, 0, 0);
XRaiseWindow(dpy, win);
XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
XFlush(dpy);
// Move the viewport to top left
XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
}
XFlush(dpy);
ctx = qglXCreateContext(dpy, visinfo, NULL, True);
qglXMakeCurrent(dpy, win, ctx);
*pwidth = width;
*pheight = height;
// let the sound and input subsystems know about the new window
ri.Vid_NewWindow (width, height);
qglXMakeCurrent(dpy, win, ctx);
return rserr_ok;
}
/*
** GLimp_Shutdown
**
** This routine does all OS specific shutdown procedures for the OpenGL
** subsystem. Under OpenGL this means NULLing out the current DC and
** HGLRC, deleting the rendering context, and releasing the DC acquired
** for the window. The state structure is also nulled out.
**
*/
void GLimp_Shutdown( void )
{
uninstall_grabs();
mouse_active = false;
dgamouse = false;
if (dpy) {
if (ctx)
qglXDestroyContext(dpy, ctx);
if (win)
XDestroyWindow(dpy, win);
if (vidmode_active)
XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
XUngrabKeyboard(dpy, CurrentTime);
XCloseDisplay(dpy);
}
ctx = NULL;
dpy = NULL;
win = 0;
ctx = NULL;
}
/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
int GLimp_Init( void *hinstance, void *wndproc )
{
InitSig();
return true;
}
/*
** GLimp_BeginFrame
*/
void GLimp_BeginFrame( float camera_seperation )
{
}
/*
** GLimp_EndFrame
**
** Responsible for doing a swapbuffers and possibly for other stuff
** as yet to be determined. Probably better not to make this a GLimp
** function and instead do a call to GLimp_SwapBuffers.
*/
void GLimp_EndFrame (void)
{
qglFlush();
qglXSwapBuffers(dpy, win);
}
/*
** GLimp_AppActivate
*/
void GLimp_AppActivate( qboolean active )
{
}
void Fake_glColorTableEXT( GLenum target, GLenum internalformat,
GLsizei width, GLenum format, GLenum type,
const GLvoid *table )
{
byte temptable[256][4];
byte *intbl;
int i;
for (intbl = (byte *)table, i = 0; i < 256; i++) {
temptable[i][2] = *intbl++;
temptable[i][1] = *intbl++;
temptable[i][0] = *intbl++;
temptable[i][3] = 255;
}
qgl3DfxSetPaletteEXT((GLuint *)temptable);
}
/*------------------------------------------------*/
/* X11 Input Stuff
/*------------------------------------------------*/
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