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jedi-academy/codemp/unix/linux_glimp.c
James Monroe 684d1bcb3b Jedi Academy Release
2013-04-04 17:35:38 -05:00

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/*
** 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>
#ifdef __linux__
#include <sys/stat.h>
#include <sys/vt.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <pthread.h>
#include <semaphore.h>
// bk001204
#include <dlfcn.h>
// bk001206 - from my Heretic2 by way of Ryan's Fakk2
// Needed for the new X11_PendingInput() function.
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include "../renderer/tr_local.h"
#include "../client/client.h"
#include "linux_local.h" // bk001130
#include "unix_glw.h"
#include <GL/glx.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#include <X11/extensions/xf86dga.h>
#include <X11/extensions/xf86vmode.h>
#define WINDOW_CLASS_NAME "Quake 3: Arena"
typedef enum {
RSERR_OK,
RSERR_INVALID_FULLSCREEN,
RSERR_INVALID_MODE,
RSERR_UNKNOWN
} rserr_t;
glwstate_t glw_state;
static Display *dpy = NULL;
static int scrnum;
static Window win = 0;
static GLXContext ctx = NULL;
// bk001206 - not needed anymore
// static qboolean autorepeaton = qtrue;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
PointerMotionMask | ButtonMotionMask )
#define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
static qboolean mouse_avail;
static qboolean mouse_active;
static int mwx, mwy;
static int mx = 0, my = 0;
// Time mouse was reset, we ignore the first 50ms of the mouse to allow settling of events
static int mouseResetTime = 0;
#define MOUSE_RESET_DELAY 50
static cvar_t *in_mouse;
static cvar_t *in_dgamouse;
// bk001130 - from cvs1.17 (mkv), but not static
cvar_t *in_joystick = NULL;
cvar_t *in_joystickDebug = NULL;
cvar_t *joy_threshold = NULL;
cvar_t *r_allowSoftwareGL; // don't abort out if the pixelformat claims software
cvar_t *r_previousglDriver;
qboolean dgamouse = qfalse;
qboolean vidmode_ext = qfalse;
static int win_x, win_y;
static XF86VidModeModeInfo **vidmodes;
//static int default_dotclock_vidmode; // bk001204 - unused
static int num_vidmodes;
static qboolean vidmode_active = qfalse;
static int mouse_accel_numerator;
static int mouse_accel_denominator;
static int mouse_threshold;
/*
* Find the first occurrence of find in s.
*/
// bk001130 - from cvs1.17 (mkv), const
// bk001130 - made first argument const
static const char *Q_stristr( const char *s, const char *find)
{
register char c, sc;
register size_t len;
if ((c = *find++) != 0) {
if (c >= 'a' && c <= 'z') {
c -= ('a' - 'A');
}
len = strlen(find);
do {
do {
if ((sc = *s++) == 0)
return NULL;
if (sc >= 'a' && sc <= 'z') {
sc -= ('a' - 'A');
}
} while (sc != c);
} while (Q_stricmpn(s, find, len) != 0);
s--;
}
return s;
}
/*****************************************************************************/
/* KEYBOARD */
/*****************************************************************************/
// bk001204 - unused
// static unsigned int keyshift[256]; // key to map to if shift held down in console
// static qboolean shift_down=qfalse;
static char *XLateKey(XKeyEvent *ev, int *key)
{
static char buf[64];
KeySym keysym;
// static qboolean setup = qfalse; // bk001204 - unused
// int i; // bk001204 - unused
*key = 0;
XLookupString(ev, buf, sizeof buf, &keysym, 0);
switch(keysym)
{
case XK_KP_Page_Up:
case XK_KP_9: *key = K_KP_PGUP; break;
case XK_Page_Up: *key = K_PGUP; break;
case XK_KP_Page_Down:
case XK_KP_3: *key = K_KP_PGDN; break;
case XK_Page_Down: *key = K_PGDN; break;
case XK_KP_Home: *key = K_KP_HOME; break;
case XK_KP_7: *key = K_KP_HOME; break;
case XK_Home: *key = K_HOME; break;
case XK_KP_End:
case XK_KP_1: *key = K_KP_END; break;
case XK_End: *key = K_END; break;
case XK_KP_Left: *key = K_KP_LEFTARROW; break;
case XK_KP_4: *key = K_KP_LEFTARROW; break;
case XK_Left: *key = K_LEFTARROW; break;
case XK_KP_Right: *key = K_KP_RIGHTARROW; break;
case XK_KP_6: *key = K_KP_RIGHTARROW; break;
case XK_Right: *key = K_RIGHTARROW; break;
case XK_KP_Down:
case XK_KP_2: *key = K_KP_DOWNARROW; break;
case XK_Down: *key = K_DOWNARROW; break;
case XK_KP_Up:
case XK_KP_8: *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;
// bk001206 - from Ryan's Fakk2
//case XK_BackSpace: *key = 8; break; // ctrl-h
case XK_BackSpace: *key = K_BACKSPACE; break; // ctrl-h
case XK_KP_Delete:
case XK_KP_Decimal: *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:
case XK_KP_0: *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;
// bk001130 - from cvs1.17 (mkv)
case XK_exclam: *key = '1'; break;
case XK_at: *key = '2'; break;
case XK_numbersign: *key = '3'; break;
case XK_dollar: *key = '4'; break;
case XK_percent: *key = '5'; break;
case XK_asciicircum: *key = '6'; break;
case XK_ampersand: *key = '7'; break;
case XK_asterisk: *key = '8'; break;
case XK_parenleft: *key = '9'; break;
case XK_parenright: *key = '0'; break;
default:
*key = *(unsigned char *)buf;
if (*key >= 'A' && *key <= 'Z')
*key = *key - 'A' + 'a';
break;
}
return buf;
}
// ========================================================================
// makes a null cursor
// ========================================================================
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
XWarpPointer(dpy, None, win,
0, 0, 0, 0,
glConfig.vidWidth / 2, glConfig.vidHeight / 2);
XSync(dpy, False);
XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
XGrabPointer(dpy, win, // bk010108 - do this earlier?
False,
MOUSE_MASK,
GrabModeAsync, GrabModeAsync,
win,
None,
CurrentTime);
XGetPointerControl(dpy, &mouse_accel_numerator, &mouse_accel_denominator,
&mouse_threshold);
XChangePointerControl(dpy, True, True, 1, 1, 0);
XSync(dpy, False);
mouseResetTime = Sys_Milliseconds ();
if (in_dgamouse->value) {
int MajorVersion, MinorVersion;
if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
// unable to query, probalby not supported
ri.Printf( PRINT_ALL, "Failed to detect XF86DGA Mouse\n" );
ri.Cvar_Set( "in_dgamouse", "0" );
} else {
dgamouse = qtrue;
XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
}
} else {
mwx = glConfig.vidWidth / 2;
mwy = glConfig.vidHeight / 2;
mx = my = 0;
}
XGrabKeyboard(dpy, win,
False,
GrabModeAsync, GrabModeAsync,
CurrentTime);
XSync(dpy, False);
}
static void uninstall_grabs(void)
{
if (dgamouse) {
dgamouse = qfalse;
XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
}
XChangePointerControl(dpy, qtrue, qtrue, mouse_accel_numerator,
mouse_accel_denominator, mouse_threshold);
XUngrabPointer(dpy, CurrentTime);
XUngrabKeyboard(dpy, CurrentTime);
XWarpPointer(dpy, None, win,
0, 0, 0, 0,
glConfig.vidWidth / 2, glConfig.vidHeight / 2);
// inviso cursor
XUndefineCursor(dpy, win);
}
// bk001206 - from Ryan's Fakk2
/**
* XPending() actually performs a blocking read
* if no events available. From Fakk2, by way of
* Heretic2, by way of SDL, original idea GGI project.
* The benefit of this approach over the quite
* badly behaved XAutoRepeatOn/Off is that you get
* focus handling for free, which is a major win
* with debug and windowed mode. It rests on the
* assumption that the X server will use the
* same timestamp on press/release event pairs
* for key repeats.
*/
static qboolean X11_PendingInput(void) {
assert(dpy != NULL);
// Flush the display connection
// and look to see if events are queued
XFlush( dpy );
if ( XEventsQueued( dpy, QueuedAlready) ) {
return qtrue;
}
// More drastic measures are required -- see if X is ready to talk
{
static struct timeval zero_time;
int x11_fd;
fd_set fdset;
x11_fd = ConnectionNumber( dpy );
FD_ZERO(&fdset);
FD_SET(x11_fd, &fdset);
if ( select(x11_fd+1, &fdset, NULL, NULL, &zero_time) == 1 ) {
return(XPending(dpy));
}
}
// Oh well, nothing is ready ..
return qfalse;
}
// bk001206 - from Ryan's Fakk2. See above.
static qboolean repeated_press(XEvent *event)
{
XEvent peekevent;
qboolean repeated = qfalse;
assert(dpy != NULL);
if (X11_PendingInput())
{
XPeekEvent(dpy, &peekevent);
if ((peekevent.type == KeyPress) &&
(peekevent.xkey.keycode == event->xkey.keycode) &&
(peekevent.xkey.time == event->xkey.time))
{
repeated = qtrue;
XNextEvent(dpy, &peekevent); // skip event.
} // if
} // if
return(repeated);
} // repeated_press
static void HandleEvents(void)
{
int b;
int key;
XEvent event;
qboolean dowarp = qfalse;
char *p;
int dx, dy;
int t;
if (!dpy)
return;
while (XPending(dpy)) {
XNextEvent(dpy, &event);
switch(event.type) {
case KeyPress:
p = XLateKey(&event.xkey, &key);
if (key)
Sys_QueEvent( 0, SE_KEY, key, qtrue, 0, NULL );
while (*p)
Sys_QueEvent( 0, SE_CHAR, *p++, 0, 0, NULL );
break;
case KeyRelease:
// bk001206 - handle key repeat w/o XAutRepatOn/Off
// also: not done if console/menu is active.
// From Ryan's Fakk2.
// see game/q_shared.h, KEYCATCH_* . 0 == in 3d game.
if (cls.keyCatchers == 0) { // FIXME: KEYCATCH_NONE
if (repeated_press(&event) == qtrue)
continue;
} // if
XLateKey(&event.xkey, &key);
Sys_QueEvent( 0, SE_KEY, key, qfalse, 0, NULL );
break;
case MotionNotify:
if (mouse_active) {
if (dgamouse) {
if (abs(event.xmotion.x_root) > 1)
mx += event.xmotion.x_root * 2;
else
mx += event.xmotion.x_root;
if (abs(event.xmotion.y_root) > 1)
my += event.xmotion.y_root * 2;
else
my += event.xmotion.y_root;
t = Sys_Milliseconds();
if (t - mouseResetTime > MOUSE_RESET_DELAY ) {
Sys_QueEvent( t, SE_MOUSE, mx, my, 0, NULL );
}
mx = my = 0;
}
else
{
// ri.Printf( PRINT_ALL, "MotionNotify: %d,%d: ", event.xmotion.x, event.xmotion.y );
// If it's a center motion, we've just returned from our warp
if (event.xmotion.x == glConfig.vidWidth/2 &&
event.xmotion.y == glConfig.vidHeight/2) {
mwx = glConfig.vidWidth/2;
mwy = glConfig.vidHeight/2;
// ri.Printf( PRINT_ALL, "SE_MOUSE (%d,%d)\n", mx, my );
t = Sys_Milliseconds();
if (t - mouseResetTime > MOUSE_RESET_DELAY ) {
Sys_QueEvent( t, SE_MOUSE, mx, my, 0, NULL );
}
mx = my = 0;
break;
}
dx = ((int)event.xmotion.x - mwx);
dy = ((int)event.xmotion.y - mwy);
if (abs(dx) > 1)
mx += dx * 2;
else
mx += dx;
if (abs(dy) > 1)
my += dy * 2;
else
my += dy;
// ri.Printf( PRINT_ALL, "mx=%d,my=%d [%d - %d,%d - %d]\n", mx, my, event.xmotion.x, mwx, event.xmotion.y, mwy );
mwx = event.xmotion.x;
mwy = event.xmotion.y;
dowarp = qtrue;
}
}
break;
case ButtonPress:
if (event.xbutton.button == 4) {
Sys_QueEvent( 0, SE_KEY, K_MWHEELUP, qtrue, 0, NULL );
} else if (event.xbutton.button == 5) {
Sys_QueEvent( 0, SE_KEY, K_MWHEELDOWN, qtrue, 0, NULL );
} else {
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;
}
Sys_QueEvent( 0, SE_KEY, K_MOUSE1 + b, qtrue, 0, NULL );
}
break;
case ButtonRelease:
if (event.xbutton.button == 4) {
Sys_QueEvent( 0, SE_KEY, K_MWHEELUP, qfalse, 0, NULL );
} else if (event.xbutton.button == 5) {
Sys_QueEvent( 0, SE_KEY, K_MWHEELDOWN, qfalse, 0, NULL );
} else {
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;
}
Sys_QueEvent( 0, SE_KEY, K_MOUSE1 + b, qfalse, 0, NULL );
}
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) {
XWarpPointer(dpy,None,win,0,0,0,0,
(glConfig.vidWidth/2),(glConfig.vidHeight/2));
}
}
void KBD_Init(void)
{
}
void KBD_Close(void)
{
}
void IN_ActivateMouse( void )
{
if (!mouse_avail || !dpy || !win)
return;
if (!mouse_active) {
install_grabs();
mouse_active = qtrue;
}
}
void IN_DeactivateMouse( void )
{
if (!mouse_avail || !dpy || !win)
return;
if (mouse_active) {
uninstall_grabs();
mouse_active = qfalse;
}
}
/*****************************************************************************/
static qboolean signalcaught = qfalse;;
void Sys_Exit(int); // bk010104 - abstraction
static void signal_handler(int sig) // bk010104 - replace this...
{
if (signalcaught) {
printf("DOUBLE SIGNAL FAULT: Received signal %d, exiting...\n", sig);
Sys_Exit(1); // bk010104 - abstraction
}
signalcaught = qtrue;
printf("Received signal %d, exiting...\n", sig);
GLimp_Shutdown(); // bk010104 - shouldn't this be CL_Shutdown
Sys_Exit(1); // bk010104 - abstraction
}
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_SetGamma
**
** This routine should only be called if glConfig.deviceSupportsGamma is TRUE
*/
void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] )
{
}
/*
** 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 )
{
if (!ctx || !dpy)
return;
IN_DeactivateMouse();
// bk001206 - replaced with H2/Fakk2 solution
// XAutoRepeatOn(dpy);
// autorepeaton = qfalse; // bk001130 - from cvs1.17 (mkv)
if (dpy) {
if (ctx)
qglXDestroyContext(dpy, ctx);
if (win)
XDestroyWindow(dpy, win);
if (vidmode_active)
XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
XCloseDisplay(dpy);
}
vidmode_active = qfalse;
dpy = NULL;
win = 0;
ctx = NULL;
memset( &glConfig, 0, sizeof( glConfig ) );
memset( &glState, 0, sizeof( glState ) );
QGL_Shutdown();
}
/*
** GLimp_LogComment
*/
void GLimp_LogComment( char *comment )
{
if ( glw_state.log_fp ) {
fprintf( glw_state.log_fp, "%s", comment );
}
}
/*
** GLW_StartDriverAndSetMode
*/
// bk001204 - prototype needed
int GLW_SetMode( const char *drivername, int mode, qboolean fullscreen );
static qboolean GLW_StartDriverAndSetMode( const char *drivername,
int mode,
qboolean fullscreen )
{
rserr_t err;
// don't ever bother going into fullscreen with a voodoo card
#if 1 // JDC: I reenabled this
if ( Q_stristr( drivername, "Voodoo" ) ) {
ri.Cvar_Set( "r_fullscreen", "0" );
r_fullscreen->modified = qfalse;
fullscreen = qfalse;
}
#endif
err = GLW_SetMode( drivername, mode, fullscreen );
switch ( err )
{
case RSERR_INVALID_FULLSCREEN:
ri.Printf( PRINT_ALL, "...WARNING: fullscreen unavailable in this mode\n" );
return qfalse;
case RSERR_INVALID_MODE:
ri.Printf( PRINT_ALL, "...WARNING: could not set the given mode (%d)\n", mode );
return qfalse;
default:
break;
}
return qtrue;
}
/*
** GLW_SetMode
*/
int GLW_SetMode( const char *drivername, int mode, qboolean fullscreen )
{
int attrib[] = {
GLX_RGBA, // 0
GLX_RED_SIZE, 4, // 1, 2
GLX_GREEN_SIZE, 4, // 3, 4
GLX_BLUE_SIZE, 4, // 5, 6
GLX_DOUBLEBUFFER, // 7
GLX_DEPTH_SIZE, 1, // 8, 9
GLX_STENCIL_SIZE, 1, // 10, 11
None
};
// these match in the array
#define ATTR_RED_IDX 2
#define ATTR_GREEN_IDX 4
#define ATTR_BLUE_IDX 6
#define ATTR_DEPTH_IDX 9
#define ATTR_STENCIL_IDX 11
Window root;
XVisualInfo *visinfo;
XSetWindowAttributes attr;
unsigned long mask;
int colorbits, depthbits, stencilbits;
int tcolorbits, tdepthbits, tstencilbits;
int MajorVersion, MinorVersion;
int actualWidth, actualHeight;
int i;
const char* glstring; // bk001130 - from cvs1.17 (mkv)
ri.Printf( PRINT_ALL, "Initializing OpenGL display\n");
ri.Printf (PRINT_ALL, "...setting mode %d:", mode );
if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, &glConfig.windowAspect, mode ) )
{
ri.Printf( PRINT_ALL, " invalid mode\n" );
return RSERR_INVALID_MODE;
}
ri.Printf( PRINT_ALL, " %d %d\n", glConfig.vidWidth, glConfig.vidHeight);
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);
actualWidth = glConfig.vidWidth;
actualHeight = glConfig.vidHeight;
// Get video mode list
MajorVersion = MinorVersion = 0;
if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
vidmode_ext = qfalse;
} else {
ri.Printf(PRINT_ALL, "Using XFree86-VidModeExtension Version %d.%d\n",
MajorVersion, MinorVersion);
vidmode_ext = qtrue;
}
// Check for DGA
if (in_dgamouse->value) {
if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
// unable to query, probalby not supported
ri.Printf( PRINT_ALL, "Failed to detect XF86DGA Mouse\n" );
ri.Cvar_Set( "in_dgamouse", "0" );
} else {
ri.Printf( PRINT_ALL, "XF86DGA Mouse (Version %d.%d) initialized\n",
MajorVersion, MinorVersion);
}
}
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) {
best_dist = 9999999;
best_fit = -1;
for (i = 0; i < num_vidmodes; i++) {
if (glConfig.vidWidth > vidmodes[i]->hdisplay ||
glConfig.vidHeight > vidmodes[i]->vdisplay)
continue;
x = glConfig.vidWidth - vidmodes[i]->hdisplay;
y = glConfig.vidHeight - 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 = qtrue;
// Move the viewport to top left
XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
ri.Printf(PRINT_ALL, "XFree86-VidModeExtension Activated at %dx%d\n",
actualWidth, actualHeight);
} else {
fullscreen = 0;
ri.Printf(PRINT_ALL, "XFree86-VidModeExtension: No acceptable modes found\n");
}
} else {
ri.Printf(PRINT_ALL, "XFree86-VidModeExtension: Ignored on non-fullscreen/Voodoo\n");
}
}
if (!r_colorbits->value)
colorbits = 24;
else
colorbits = r_colorbits->value;
if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) )
colorbits = 16;
if (!r_depthbits->value)
depthbits = 24;
else
depthbits = r_depthbits->value;
stencilbits = r_stencilbits->value;
for (i = 0; i < 16; i++) {
// 0 - default
// 1 - minus colorbits
// 2 - minus depthbits
// 3 - minus stencil
if ((i % 4) == 0 && i) {
// one pass, reduce
switch (i / 4) {
case 2 :
if (colorbits == 24)
colorbits = 16;
break;
case 1 :
if (depthbits == 24)
depthbits = 16;
else if (depthbits == 16)
depthbits = 8;
case 3 :
if (stencilbits == 24)
stencilbits = 16;
else if (stencilbits == 16)
stencilbits = 8;
}
}
tcolorbits = colorbits;
tdepthbits = depthbits;
tstencilbits = stencilbits;
if ((i % 4) == 3) { // reduce colorbits
if (tcolorbits == 24)
tcolorbits = 16;
}
if ((i % 4) == 2) { // reduce depthbits
if (tdepthbits == 24)
tdepthbits = 16;
else if (tdepthbits == 16)
tdepthbits = 8;
}
if ((i % 4) == 1) { // reduce stencilbits
if (tstencilbits == 24)
tstencilbits = 16;
else if (tstencilbits == 16)
tstencilbits = 8;
else
tstencilbits = 0;
}
if (tcolorbits == 24) {
attrib[ATTR_RED_IDX] = 8;
attrib[ATTR_GREEN_IDX] = 8;
attrib[ATTR_BLUE_IDX] = 8;
} else {
// must be 16 bit
attrib[ATTR_RED_IDX] = 4;
attrib[ATTR_GREEN_IDX] = 4;
attrib[ATTR_BLUE_IDX] = 4;
}
attrib[ATTR_DEPTH_IDX] = tdepthbits; // default to 24 depth
attrib[ATTR_STENCIL_IDX] = tstencilbits;
visinfo = qglXChooseVisual(dpy, scrnum, attrib);
if (!visinfo) {
continue;
}
ri.Printf( PRINT_ALL, "Using %d/%d/%d Color bits, %d depth, %d stencil display.\n",
attrib[ATTR_RED_IDX], attrib[ATTR_GREEN_IDX], attrib[ATTR_BLUE_IDX],
attrib[ATTR_DEPTH_IDX], attrib[ATTR_STENCIL_IDX]);
glConfig.colorBits = tcolorbits;
glConfig.depthBits = tdepthbits;
glConfig.stencilBits = tstencilbits;
break;
}
if (!visinfo) {
ri.Printf( PRINT_ALL, "Couldn't get a visual\n" );
return RSERR_INVALID_MODE;
}
/* window attributes */
attr.background_pixel = BlackPixel(dpy, scrnum);
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,
actualWidth, actualHeight,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
XStoreName( dpy, win, WINDOW_CLASS_NAME );
XMapWindow( dpy, win );
if (vidmode_active)
XMoveWindow(dpy, win, 0, 0);
XFlush(dpy);
XSync(dpy,False); // bk001130 - from cvs1.17 (mkv)
ctx = qglXCreateContext(dpy, visinfo, NULL, True);
XSync(dpy,False); // bk001130 - from cvs1.17 (mkv)
qglXMakeCurrent(dpy, win, ctx);
// bk001130 - from cvs1.17 (mkv)
glstring = qglGetString (GL_RENDERER);
ri.Printf( PRINT_ALL, "GL_RENDERER: %s\n", glstring );
// bk010122 - new software token (Indirect)
if ( !Q_stricmp( glstring, "Mesa X11")
|| !Q_stricmp( glstring, "Mesa GLX Indirect") )
{
if ( !r_allowSoftwareGL->integer ) {
ri.Printf( PRINT_ALL, "\n\n***********************************************************\n" );
ri.Printf( PRINT_ALL, " You are using software Mesa (no hardware acceleration)! \n" );
ri.Printf( PRINT_ALL, " Driver DLL used: %s\n", drivername );
ri.Printf( PRINT_ALL, " If this is intentional, add\n" );
ri.Printf( PRINT_ALL, " \"+set r_allowSoftwareGL 1\"\n" );
ri.Printf( PRINT_ALL, " to the command line when starting the game.\n" );
ri.Printf( PRINT_ALL, "***********************************************************\n");
GLimp_Shutdown( );
return RSERR_INVALID_MODE;
} else {
ri.Printf( PRINT_ALL, "...using software Mesa (r_allowSoftwareGL==1).\n" );
}
}
return RSERR_OK;
}
/*
** GLW_InitExtensions
*/
static void GLW_InitExtensions( void )
{
if ( !r_allowExtensions->integer )
{
ri.Printf( PRINT_ALL, "*** IGNORING OPENGL EXTENSIONS ***\n" );
return;
}
ri.Printf( PRINT_ALL, "Initializing OpenGL extensions\n" );
// GL_S3_s3tc
if ( Q_stristr( glConfig.extensions_string, "GL_S3_s3tc" ) )
{
if ( r_ext_compressed_textures->value )
{
glConfig.textureCompression = TC_S3TC;
ri.Printf( PRINT_ALL, "...using GL_S3_s3tc\n" );
}
else
{
glConfig.textureCompression = TC_NONE;
ri.Printf( PRINT_ALL, "...ignoring GL_S3_s3tc\n" );
}
}
else
{
glConfig.textureCompression = TC_NONE;
ri.Printf( PRINT_ALL, "...GL_S3_s3tc not found\n" );
}
// GL_EXT_texture_env_add
glConfig.textureEnvAddAvailable = qfalse;
if ( Q_stristr( glConfig.extensions_string, "EXT_texture_env_add" ) )
{
if ( r_ext_texture_env_add->integer )
{
glConfig.textureEnvAddAvailable = qtrue;
ri.Printf( PRINT_ALL, "...using GL_EXT_texture_env_add\n" );
}
else
{
glConfig.textureEnvAddAvailable = qfalse;
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_env_add\n" );
}
}
else
{
ri.Printf( PRINT_ALL, "...GL_EXT_texture_env_add not found\n" );
}
// GL_ARB_multitexture
qglMultiTexCoord2fARB = NULL;
qglActiveTextureARB = NULL;
qglClientActiveTextureARB = NULL;
if ( Q_stristr( glConfig.extensions_string, "GL_ARB_multitexture" ) )
{
if ( r_ext_multitexture->value )
{
qglMultiTexCoord2fARB = ( PFNGLMULTITEXCOORD2FARBPROC ) dlsym( glw_state.OpenGLLib, "glMultiTexCoord2fARB" );
qglActiveTextureARB = ( PFNGLACTIVETEXTUREARBPROC ) dlsym( glw_state.OpenGLLib, "glActiveTextureARB" );
qglClientActiveTextureARB = ( PFNGLCLIENTACTIVETEXTUREARBPROC ) dlsym( glw_state.OpenGLLib, "glClientActiveTextureARB" );
if ( qglActiveTextureARB )
{
qglGetIntegerv( GL_MAX_ACTIVE_TEXTURES_ARB, &glConfig.maxActiveTextures );
if ( glConfig.maxActiveTextures > 1 )
{
ri.Printf( PRINT_ALL, "...using GL_ARB_multitexture\n" );
}
else
{
qglMultiTexCoord2fARB = NULL;
qglActiveTextureARB = NULL;
qglClientActiveTextureARB = NULL;
ri.Printf( PRINT_ALL, "...not using GL_ARB_multitexture, < 2 texture units\n" );
}
}
}
else
{
ri.Printf( PRINT_ALL, "...ignoring GL_ARB_multitexture\n" );
}
}
else
{
ri.Printf( PRINT_ALL, "...GL_ARB_multitexture not found\n" );
}
// GL_EXT_compiled_vertex_array
if ( Q_stristr( glConfig.extensions_string, "GL_EXT_compiled_vertex_array" ) )
{
if ( r_ext_compiled_vertex_array->value )
{
ri.Printf( PRINT_ALL, "...using GL_EXT_compiled_vertex_array\n" );
qglLockArraysEXT = ( void ( APIENTRY * )( int, int ) ) dlsym( glw_state.OpenGLLib, "glLockArraysEXT" );
qglUnlockArraysEXT = ( void ( APIENTRY * )( void ) ) dlsym( glw_state.OpenGLLib, "glUnlockArraysEXT" );
if (!qglLockArraysEXT || !qglUnlockArraysEXT) {
ri.Error (ERR_FATAL, "bad getprocaddress");
}
}
else
{
ri.Printf( PRINT_ALL, "...ignoring GL_EXT_compiled_vertex_array\n" );
}
}
else
{
ri.Printf( PRINT_ALL, "...GL_EXT_compiled_vertex_array not found\n" );
}
}
/*
** GLW_LoadOpenGL
**
** GLimp_win.c internal function that that attempts to load and use
** a specific OpenGL DLL.
*/
static qboolean GLW_LoadOpenGL( const char *name )
{
qboolean fullscreen;
ri.Printf( PRINT_ALL, "...loading %s: ", name );
// disable the 3Dfx splash screen and set gamma
// we do this all the time, but it shouldn't hurt anything
// on non-3Dfx stuff
putenv("FX_GLIDE_NO_SPLASH=0");
// Mesa VooDoo hacks
putenv("MESA_GLX_FX=fullscreen\n");
// load the QGL layer
if ( QGL_Init( name ) )
{
fullscreen = r_fullscreen->integer;
// create the window and set up the context
if ( !GLW_StartDriverAndSetMode( name, r_mode->integer, fullscreen ) )
{
if (r_mode->integer != 3) {
if ( !GLW_StartDriverAndSetMode( name, 3, fullscreen ) ) {
goto fail;
}
} else
goto fail;
}
return qtrue;
}
else
{
ri.Printf( PRINT_ALL, "failed\n" );
}
fail:
QGL_Shutdown();
return qfalse;
}
/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
void GLimp_Init( void )
{
qboolean attemptedlibGL = qfalse;
qboolean attempted3Dfx = qfalse;
qboolean success = qfalse;
char buf[1024];
cvar_t *lastValidRenderer = ri.Cvar_Get( "r_lastValidRenderer", "(uninitialized)", CVAR_ARCHIVE );
// cvar_t *cv; // bk001204 - unused
r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
r_previousglDriver = ri.Cvar_Get( "r_previousglDriver", "", CVAR_ROM );
glConfig.deviceSupportsGamma = qfalse;
InitSig();
// Hack here so that if the UI
if ( *r_previousglDriver->string ) {
// The UI changed it on us, hack it back
// This means the renderer can't be changed on the fly
ri.Cvar_Set( "r_glDriver", r_previousglDriver->string );
}
//
// load and initialize the specific OpenGL driver
//
if ( !GLW_LoadOpenGL( r_glDriver->string ) )
{
if ( !Q_stricmp( r_glDriver->string, OPENGL_DRIVER_NAME ) )
{
attemptedlibGL = qtrue;
}
else if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) )
{
attempted3Dfx = qtrue;
}
if ( !attempted3Dfx && !success )
{
attempted3Dfx = qtrue;
if ( GLW_LoadOpenGL( _3DFX_DRIVER_NAME ) )
{
ri.Cvar_Set( "r_glDriver", _3DFX_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
// try ICD before trying 3Dfx standalone driver
if ( !attemptedlibGL && !success )
{
attemptedlibGL = qtrue;
if ( GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) )
{
ri.Cvar_Set( "r_glDriver", OPENGL_DRIVER_NAME );
r_glDriver->modified = qfalse;
success = qtrue;
}
}
if (!success)
ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem\n" );
}
// Save it in case the UI stomps it
ri.Cvar_Set( "r_previousglDriver", r_glDriver->string );
// This values force the UI to disable driver selection
glConfig.driverType = GLDRV_ICD;
glConfig.hardwareType = GLHW_GENERIC;
// get our config strings
Q_strncpyz( glConfig.vendor_string, qglGetString (GL_VENDOR), sizeof( glConfig.vendor_string ) );
Q_strncpyz( glConfig.renderer_string, qglGetString (GL_RENDERER), sizeof( glConfig.renderer_string ) );
if (*glConfig.renderer_string && glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] == '\n')
glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] = 0;
Q_strncpyz( glConfig.version_string, qglGetString (GL_VERSION), sizeof( glConfig.version_string ) );
Q_strncpyz( glConfig.extensions_string, qglGetString (GL_EXTENSIONS), sizeof( glConfig.extensions_string ) );
//
// chipset specific configuration
//
strcpy( buf, glConfig.renderer_string );
strlwr( buf );
//
// NOTE: if changing cvars, do it within this block. This allows them
// to be overridden when testing driver fixes, etc. but only sets
// them to their default state when the hardware is first installed/run.
//
if ( Q_stricmp( lastValidRenderer->string, glConfig.renderer_string ) )
{
glConfig.hardwareType = GLHW_GENERIC;
ri.Cvar_Set( "r_textureMode", "GL_LINEAR_MIPMAP_NEAREST" );
// VOODOO GRAPHICS w/ 2MB
if ( Q_stristr( buf, "voodoo graphics/1 tmu/2 mb" ) )
{
ri.Cvar_Set( "r_picmip", "2" );
ri.Cvar_Get( "r_picmip", "1", CVAR_ARCHIVE | CVAR_LATCH );
}
else
{
ri.Cvar_Set( "r_picmip", "1" );
if ( Q_stristr( buf, "rage 128" ) || Q_stristr( buf, "rage128" ) )
{
ri.Cvar_Set( "r_finish", "0" );
}
// Savage3D and Savage4 should always have trilinear enabled
else if ( Q_stristr( buf, "savage3d" ) || Q_stristr( buf, "s3 savage4" ) )
{
ri.Cvar_Set( "r_texturemode", "GL_LINEAR_MIPMAP_LINEAR" );
}
}
}
//
// this is where hardware specific workarounds that should be
// detected/initialized every startup should go.
//
if ( Q_stristr( buf, "banshee" ) || Q_stristr( buf, "Voodoo_Graphics" ) )
{
glConfig.hardwareType = GLHW_3DFX_2D3D;
}
else if ( Q_stristr( buf, "rage pro" ) || Q_stristr( buf, "RagePro" ) )
{
glConfig.hardwareType = GLHW_RAGEPRO;
}
else if ( Q_stristr( buf, "permedia2" ) )
{
glConfig.hardwareType = GLHW_PERMEDIA2;
}
else if ( Q_stristr( buf, "riva 128" ) )
{
glConfig.hardwareType = GLHW_RIVA128;
}
else if ( Q_stristr( buf, "riva tnt " ) )
{
}
ri.Cvar_Set( "r_lastValidRenderer", glConfig.renderer_string );
// initialize extensions
GLW_InitExtensions();
InitSig();
return;
}
/*
** 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)
{
// don't flip if drawing to front buffer
if ( stricmp( r_drawBuffer->string, "GL_FRONT" ) != 0 )
{
qglXSwapBuffers(dpy, win);
}
// check logging
QGL_EnableLogging( (qboolean)r_logFile->integer ); // bk001205 - was ->value
}
#ifdef SMP
/*
===========================================================
SMP acceleration
===========================================================
*/
sem_t renderCommandsEvent;
sem_t renderCompletedEvent;
sem_t renderActiveEvent;
void (*glimpRenderThread)( void );
void *GLimp_RenderThreadWrapper( void *stub ) {
glimpRenderThread();
return NULL;
}
/*
=======================
GLimp_SpawnRenderThread
=======================
*/
pthread_t renderThreadHandle;
qboolean GLimp_SpawnRenderThread( void (*function)( void ) ) {
sem_init( &renderCommandsEvent, 0, 0 );
sem_init( &renderCompletedEvent, 0, 0 );
sem_init( &renderActiveEvent, 0, 0 );
glimpRenderThread = function;
if (pthread_create( &renderThreadHandle, NULL,
GLimp_RenderThreadWrapper, NULL)) {
return qfalse;
}
return qtrue;
}
static void *smpData;
//static int glXErrors; // bk001204 - unused
void *GLimp_RendererSleep( void ) {
void *data;
// after this, the front end can exit GLimp_FrontEndSleep
sem_post ( &renderCompletedEvent );
sem_wait ( &renderCommandsEvent );
data = smpData;
// after this, the main thread can exit GLimp_WakeRenderer
sem_post ( &renderActiveEvent );
return data;
}
void GLimp_FrontEndSleep( void ) {
sem_wait ( &renderCompletedEvent );
}
void GLimp_WakeRenderer( void *data ) {
smpData = data;
// after this, the renderer can continue through GLimp_RendererSleep
sem_post( &renderCommandsEvent );
sem_wait( &renderActiveEvent );
}
#else
void GLimp_RenderThreadWrapper( void *stub ) { }
qboolean GLimp_SpawnRenderThread( void (*function)( void ) ) {
return qfalse;
}
void *GLimp_RendererSleep( void ) {
return NULL;
}
void GLimp_FrontEndSleep( void ) { }
void GLimp_WakeRenderer( void *data ) { }
#endif
/*****************************************************************************/
/* MOUSE */
/*****************************************************************************/
void IN_Init(void) {
// mouse variables
in_mouse = Cvar_Get ("in_mouse", "1", CVAR_ARCHIVE);
in_dgamouse = Cvar_Get ("in_dgamouse", "1", CVAR_ARCHIVE);
// bk001130 - from cvs.17 (mkv), joystick variables
in_joystick = Cvar_Get ("in_joystick", "0", CVAR_ARCHIVE|CVAR_LATCH);
// bk001130 - changed this to match win32
in_joystickDebug = Cvar_Get ("in_debugjoystick", "0", CVAR_TEMP);
joy_threshold = Cvar_Get ("joy_threshold", "0.15", CVAR_ARCHIVE); // FIXME: in_joythreshold
if (in_mouse->value)
mouse_avail = qtrue;
else
mouse_avail = qfalse;
IN_StartupJoystick( ); // bk001130 - from cvs1.17 (mkv)
}
void IN_Shutdown(void)
{
mouse_avail = qfalse;
}
void IN_Frame (void) {
// bk001130 - from cvs 1.17 (mkv)
IN_JoyMove(); // FIXME: disable if on desktop?
if ( cls.keyCatchers & KEYCATCH_CONSOLE ) {
// temporarily deactivate if not in the game and
// running on the desktop
// voodoo always counts as full screen
if (Cvar_VariableValue ("r_fullscreen") == 0
&& strcmp( Cvar_VariableString("r_glDriver"), _3DFX_DRIVER_NAME ) ) {
IN_DeactivateMouse ();
return;
}
// bk001206 - not used, now done the H2/Fakk2 way
//if (dpy && !autorepeaton) {
// XAutoRepeatOn(dpy);
// autorepeaton = qtrue;
//}
}
//else if (dpy && autorepeaton) {
//XAutoRepeatOff(dpy);
//autorepeaton = qfalse;
//}
IN_ActivateMouse();
}
void IN_Activate(void)
{
}
// bk001130 - cvs1.17 joystick code (mkv) was here, no linux_joystick.c
void Sys_SendKeyEvents (void) {
// XEvent event; // bk001204 - unused
if (!dpy)
return;
HandleEvents();
}
// bk010216 - added stubs for non-Linux UNIXes here
// FIXME - use NO_JOYSTICK or something else generic
#if defined( __FreeBSD__ ) // rb010123
void IN_StartupJoystick( void ) {}
void IN_JoyMove( void ) {}
#endif
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