ref: ab06b0ebe671252f7fc1b517d2c2d3f1f00ee5bc
dir: /QW/client/gl_vidlinux_x11.c/
/*
Copyright (C) 1996-1997 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.
*/
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/vt.h>
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <asm/io.h>
//#include <X11/cursorfont.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include "GL/gl.h"
#include "GL/glx.h"
#include "quakedef.h"
#define WARP_WIDTH 320
#define WARP_HEIGHT 200
static Display *dpy = NULL;
static Window win;
static GLXContext ctx = NULL;
unsigned short d_8to16table[256];
unsigned int d_8to24table[256];
unsigned char d_15to8table[65536];
static qboolean usedga = false;
#define stringify(m) { #m, m }
cvar_t vid_mode = {"vid_mode","0",false};
cvar_t mouse_button_commands[3] =
{
{"mouse1","+attack"},
{"mouse2","+strafe"},
{"mouse3","+forward"},
};
static int mouse_buttons=3;
static int mouse_buttonstate;
static int mouse_oldbuttonstate;
static float mouse_x, mouse_y;
static float p_mouse_x, p_mouse_y;
static float old_mouse_x, old_mouse_y;
cvar_t _windowed_mouse = {"_windowed_mouse", "1", true};
cvar_t m_filter = {"m_filter","0"};
static float old_windowed_mouse;
static int scr_width, scr_height;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
PointerMotionMask | ButtonMotionMask)
/*-----------------------------------------------------------------------*/
//int texture_mode = GL_NEAREST;
//int texture_mode = GL_NEAREST_MIPMAP_NEAREST;
//int texture_mode = GL_NEAREST_MIPMAP_LINEAR;
int texture_mode = GL_LINEAR;
//int texture_mode = GL_LINEAR_MIPMAP_NEAREST;
//int texture_mode = GL_LINEAR_MIPMAP_LINEAR;
int texture_extension_number = 1;
float gldepthmin, gldepthmax;
cvar_t gl_ztrick = {"gl_ztrick","1"};
const char *gl_vendor;
const char *gl_renderer;
const char *gl_version;
const char *gl_extensions;
qboolean is8bit = false;
qboolean isPermedia = false;
qboolean gl_mtexable = false;
/*-----------------------------------------------------------------------*/
void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
{
}
void D_EndDirectRect (int x, int y, int width, int height)
{
}
/*
=================
VID_Gamma_f
Keybinding command
=================
*/
void VID_Gamma_f (void)
{
float gamma, f, inf;
unsigned char palette[768];
int i;
if (Cmd_Argc () == 2)
{
gamma = Q_atof (Cmd_Argv(1));
for (i=0 ; i<768 ; i++)
{
f = pow ( (host_basepal[i]+1)/256.0 , gamma );
inf = f*255 + 0.5;
if (inf < 0)
inf = 0;
if (inf > 255)
inf = 255;
palette[i] = inf;
}
VID_SetPalette (palette);
vid.recalc_refdef = 1; // force a surface cache flush
}
}
void VID_Shutdown(void)
{
if (!ctx)
return;
XUngrabPointer(dpy,CurrentTime);
XUngrabKeyboard(dpy,CurrentTime);
glXDestroyContext(dpy,ctx);
#ifdef USE_DGA
if (usedga)
XF86DGADirectVideo(dpy,DefaultScreen(dpy),0);
#endif
}
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:
case XK_Page_Up: key = K_PGUP; break;
case XK_KP_Page_Down:
case XK_Page_Down: key = K_PGDN; break;
case XK_KP_Home:
case XK_Home: key = K_HOME; break;
case XK_KP_End:
case XK_End: key = K_END; break;
case XK_KP_Left:
case XK_Left: key = K_LEFTARROW; break;
case XK_KP_Right:
case XK_Right: key = K_RIGHTARROW; break;
case XK_KP_Down:
case XK_Down: key = K_DOWNARROW; break;
case XK_KP_Up:
case XK_Up: key = K_UPARROW; break;
case XK_Escape: key = K_ESCAPE; break;
case XK_KP_Enter:
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:
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_AUX30; break;
case XK_Insert:
case XK_KP_Insert: key = K_INS; break;
case XK_KP_Multiply: key = '*'; break;
case XK_KP_Add: key = '+'; break;
case XK_KP_Subtract: key = '-'; break;
case XK_KP_Divide: key = '/'; 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';
// fprintf(stdout, "case 0x0%x: key = ___;break;/* [%c] */\n", keysym);
break;
}
return key;
}
struct
{
int key;
int down;
} keyq[64];
int keyq_head=0;
int keyq_tail=0;
int config_notify=0;
int config_notify_width;
int config_notify_height;
qboolean Keyboard_Update(void)
{
XEvent x_event;
if(!XCheckMaskEvent(dpy,KEY_MASK,&x_event))
return false;
switch(x_event.type) {
case KeyPress:
keyq[keyq_head].key = XLateKey(&x_event.xkey);
keyq[keyq_head].down = true;
keyq_head = (keyq_head + 1) & 63;
break;
case KeyRelease:
keyq[keyq_head].key = XLateKey(&x_event.xkey);
keyq[keyq_head].down = false;
keyq_head = (keyq_head + 1) & 63;
break;
}
return true;
}
qboolean Mouse_Update(void)
{
XEvent x_event;
int b;
if(!XCheckMaskEvent(dpy,MOUSE_MASK,&x_event))
return false;
switch(x_event.type) {
case MotionNotify:
if (usedga) {
mouse_x += x_event.xmotion.x_root;
mouse_y += x_event.xmotion.y_root;
} else if (_windowed_mouse.value) {
mouse_x += (float) ((int)x_event.xmotion.x - (int)(scr_width/2));
mouse_y += (float) ((int)x_event.xmotion.y - (int)(scr_height/2));
/* move the mouse to the window center again */
XSelectInput(dpy,win, (KEY_MASK | MOUSE_MASK) & ~PointerMotionMask);
XWarpPointer(dpy,None,win,0,0,0,0, (scr_width/2),(scr_height/2));
XSelectInput(dpy,win, KEY_MASK | MOUSE_MASK);
} else {
mouse_x = (float) (x_event.xmotion.x-p_mouse_x);
mouse_y = (float) (x_event.xmotion.y-p_mouse_y);
p_mouse_x=x_event.xmotion.x;
p_mouse_y=x_event.xmotion.y;
}
break;
case ButtonPress:
b=-1;
if (x_event.xbutton.button == 1)
b = 0;
else if (x_event.xbutton.button == 2)
b = 2;
else if (x_event.xbutton.button == 3)
b = 1;
if (b>=0)
mouse_buttonstate |= 1<<b;
break;
case ButtonRelease:
b=-1;
if (x_event.xbutton.button == 1)
b = 0;
else if (x_event.xbutton.button == 2)
b = 2;
else if (x_event.xbutton.button == 3)
b = 1;
if (b>=0)
mouse_buttonstate &= ~(1<<b);
break;
}
if (old_windowed_mouse != _windowed_mouse.value) {
old_windowed_mouse = _windowed_mouse.value;
if (!_windowed_mouse.value) {
/* ungrab the pointer */
Con_Printf("Releasing mouse.\n");
XUngrabPointer(dpy,CurrentTime);
XUngrabKeyboard(dpy,CurrentTime);
} else {
/* grab the pointer */
Con_Printf("Grabbing mouse.\n");
XGrabPointer(dpy,win,False,MOUSE_MASK,GrabModeAsync,
GrabModeAsync,win,None,CurrentTime);
XWarpPointer(dpy,None,win, 0,0,0,0, scr_width/2, scr_height/2);
XGrabKeyboard(dpy,win,
False,
GrabModeAsync,GrabModeAsync,
CurrentTime);
//XSync(dpy,True);
}
}
return true;
}
void signal_handler(int sig)
{
printf("Received signal %d, exiting...\n", sig);
VID_Shutdown();
exit(0);
}
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);
}
void VID_ShiftPalette(unsigned char *p)
{
VID_SetPalette(p);
}
void VID_SetPalette (unsigned char *palette)
{
byte *pal;
unsigned short r,g,b;
int v;
int r1,g1,b1;
int k;
unsigned short i;
unsigned *table;
FILE *f;
char s[255];
float dist, bestdist;
static qboolean palflag = false;
//
// 8 8 8 encoding
//
pal = palette;
table = d_8to24table;
for (i=0 ; i<256 ; i++)
{
r = pal[0];
g = pal[1];
b = pal[2];
pal += 3;
// v = (255<<24) + (r<<16) + (g<<8) + (b<<0);
// v = (255<<0) + (r<<8) + (g<<16) + (b<<24);
v = (255<<24) + (r<<0) + (g<<8) + (b<<16);
*table++ = v;
}
d_8to24table[255] &= 0xffffff; // 255 is transparent
// JACK: 3D distance calcs - k is last closest, l is the distance.
// FIXME: Precalculate this and cache to disk.
if (palflag)
return;
palflag = true;
COM_FOpenFile("glquake/15to8.pal", &f);
if (f) {
fread(d_15to8table, 1<<15, 1, f);
fclose(f);
} else {
for (i=0; i < (1<<15); i++) {
/* Maps
000000000000000
000000000011111 = Red = 0x1F
000001111100000 = Blue = 0x03E0
111110000000000 = Grn = 0x7C00
*/
r = ((i & 0x1F) << 3)+4;
g = ((i & 0x03E0) >> 2)+4;
b = ((i & 0x7C00) >> 7)+4;
pal = (unsigned char *)d_8to24table;
for (v=0,k=0,bestdist=10000.0; v<256; v++,pal+=4) {
r1 = (int)r - (int)pal[0];
g1 = (int)g - (int)pal[1];
b1 = (int)b - (int)pal[2];
dist = sqrt(((r1*r1)+(g1*g1)+(b1*b1)));
if (dist < bestdist) {
k=v;
bestdist = dist;
}
}
d_15to8table[i]=k;
}
sprintf(s, "%s/glquake", com_gamedir);
Sys_mkdir (s);
sprintf(s, "%s/glquake/15to8.pal", com_gamedir);
if ((f = fopen(s, "wb")) != NULL) {
fwrite(d_15to8table, 1<<15, 1, f);
fclose(f);
}
}
}
/*
===============
GL_Init
===============
*/
void GL_Init (void)
{
gl_vendor = glGetString (GL_VENDOR);
Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
gl_renderer = glGetString (GL_RENDERER);
Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
gl_version = glGetString (GL_VERSION);
Con_Printf ("GL_VERSION: %s\n", gl_version);
gl_extensions = glGetString (GL_EXTENSIONS);
Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
// Con_Printf ("%s %s\n", gl_renderer, gl_version);
glClearColor (1,0,0,0);
glCullFace(GL_FRONT);
glEnable(GL_TEXTURE_2D);
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.666);
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
glShadeModel (GL_FLAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
/*
=================
GL_BeginRendering
=================
*/
void GL_BeginRendering (int *x, int *y, int *width, int *height)
{
extern cvar_t gl_clear;
*x = *y = 0;
*width = scr_width;
*height = scr_height;
// if (!wglMakeCurrent( maindc, baseRC ))
// Sys_Error ("wglMakeCurrent failed");
// glViewport (*x, *y, *width, *height);
}
void GL_EndRendering (void)
{
glFlush();
glXSwapBuffers(dpy,win);
}
qboolean VID_Is8bit(void)
{
return is8bit;
}
#ifdef GL_EXT_SHARED
void VID_Init8bitPalette()
{
// Check for 8bit Extensions and initialize them.
int i;
char thePalette[256*3];
char *oldPalette, *newPalette;
if (strstr(gl_extensions, "GL_EXT_shared_texture_palette") == NULL)
return;
Con_SafePrintf("8-bit GL extensions enabled.\n");
glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
newPalette = thePalette;
for (i=0;i<256;i++) {
*newPalette++ = *oldPalette++;
*newPalette++ = *oldPalette++;
*newPalette++ = *oldPalette++;
oldPalette++;
}
glColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
is8bit = true;
}
#else
extern void gl3DfxSetPaletteEXT(GLuint *pal);
void VID_Init8bitPalette(void)
{
// Check for 8bit Extensions and initialize them.
int i;
GLubyte table[256][4];
char *oldpal;
if (strstr(gl_extensions, "3DFX_set_global_palette") == NULL)
return;
Con_SafePrintf("8-bit GL extensions enabled.\n");
glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
oldpal = (char *) d_8to24table; //d_8to24table3dfx;
for (i=0;i<256;i++) {
table[i][2] = *oldpal++;
table[i][1] = *oldpal++;
table[i][0] = *oldpal++;
table[i][3] = 255;
oldpal++;
}
gl3DfxSetPaletteEXT((GLuint *)table);
is8bit = true;
}
#endif
void VID_Init(unsigned char *palette)
{
int i;
char gldir[MAX_OSPATH];
int width = 640, height = 480;
int attrib[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None };
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
XVisualInfo *visinfo;
S_Init();
Cvar_RegisterVariable (&vid_mode);
Cvar_RegisterVariable (&gl_ztrick);
vid.maxwarpwidth = WARP_WIDTH;
vid.maxwarpheight = WARP_HEIGHT;
vid.colormap = host_colormap;
vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));
// interpret command-line params
// set vid parameters
if ((i = COM_CheckParm("-width")) != 0)
width = atoi(com_argv[i+1]);
if ((i = COM_CheckParm("-height")) != 0)
height = atoi(com_argv[i+1]);
if ((i = COM_CheckParm("-conwidth")) != 0)
vid.conwidth = Q_atoi(com_argv[i+1]);
else
vid.conwidth = 640;
vid.conwidth &= 0xfff8; // make it a multiple of eight
if (vid.conwidth < 320)
vid.conwidth = 320;
// pick a conheight that matches with correct aspect
vid.conheight = vid.conwidth*3 / 4;
if ((i = COM_CheckParm("-conheight")) != 0)
vid.conheight = Q_atoi(com_argv[i+1]);
if (vid.conheight < 200)
vid.conheight = 200;
if (!(dpy = XOpenDisplay(NULL))) {
fprintf(stderr, "Error couldn't open the X display\n");
exit(1);
}
scrnum = DefaultScreen(dpy);
root = RootWindow(dpy, scrnum);
visinfo=glXChooseVisual(dpy,scrnum,attrib);
if (!visinfo) {
fprintf(stderr, "Error couldn't get an RGB, Double-buffered, Depth visual\n");
exit(1);
}
/* window attributes */
attr.background_pixel=0;
attr.border_pixel=0;
attr.colormap=XCreateColormap(dpy,root,visinfo->visual,AllocNone);
attr.event_mask=KEY_MASK|MOUSE_MASK|VisibilityChangeMask;
mask=CWBackPixel|CWBorderPixel|CWColormap|CWEventMask;
win=XCreateWindow(dpy,root,0,0,width,height,
0,visinfo->depth,InputOutput,
visinfo->visual,mask,&attr);
XMapWindow(dpy,win);
XMoveWindow(dpy,win,0,0);
XFlush(dpy);
if (COM_CheckParm("-window"))
putenv("MESA_GLX_FX=window");
else
putenv("MESA_GLX_FX=fullscreen");
ctx = glXCreateContext(dpy,visinfo,NULL,True);
if (!ctx) {
fprintf(stderr, "Unable to create glX context.\n");
exit(1);
}
glXMakeCurrent(dpy,win,ctx);
scr_width = width;
scr_height = height;
if (vid.conheight > height)
vid.conheight = height;
if (vid.conwidth > width)
vid.conwidth = width;
vid.width = vid.conwidth;
vid.height = vid.conheight;
vid.aspect = ((float)vid.height / (float)vid.width) *
(320.0 / 240.0);
vid.numpages = 2;
InitSig(); // trap evil signals
GL_Init();
sprintf (gldir, "%s/glquake", com_gamedir);
Sys_mkdir (gldir);
VID_SetPalette(palette);
// Check for 3DFX Extensions and initialize them.
VID_Init8bitPalette();
Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
vid.recalc_refdef = 1; // force a surface cache flush
}
void Sys_SendKeyEvents(void)
{
if (dpy)
{
while (Keyboard_Update())
;
while (keyq_head != keyq_tail)
{
Key_Event(keyq[keyq_tail].key, keyq[keyq_tail].down);
keyq_tail = (keyq_tail + 1) & 63;
}
}
}
void Force_CenterView_f (void)
{
cl.viewangles[PITCH] = 0;
}
void IN_Init(void)
{
Cvar_RegisterVariable (&_windowed_mouse);
Cvar_RegisterVariable (&m_filter);
Cvar_RegisterVariable (&mouse_button_commands[0]);
Cvar_RegisterVariable (&mouse_button_commands[1]);
Cvar_RegisterVariable (&mouse_button_commands[2]);
Cmd_AddCommand ("force_centerview", Force_CenterView_f);
}
void IN_Shutdown(void)
{
}
/*
===========
IN_Commands
===========
*/
void IN_Commands (void)
{
int i;
for (i=0 ; i<mouse_buttons ; i++) {
if ( (mouse_buttonstate & (1<<i)) && !(mouse_oldbuttonstate & (1<<i)) )
Key_Event (K_MOUSE1 + i, true);
if ( !(mouse_buttonstate & (1<<i)) && (mouse_oldbuttonstate & (1<<i)) )
Key_Event (K_MOUSE1 + i, false);
}
mouse_oldbuttonstate = mouse_buttonstate;
}
/*
===========
IN_Move
===========
*/
void IN_Move (usercmd_t *cmd)
{
while (Mouse_Update())
;
if (m_filter.value) {
mouse_x = (mouse_x + old_mouse_x) * 0.5;
mouse_y = (mouse_y + old_mouse_y) * 0.5;
}
old_mouse_x = mouse_x;
old_mouse_y = mouse_y;
mouse_x *= sensitivity.value;
mouse_y *= sensitivity.value;
if ( (in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1) ))
cmd->sidemove += m_side.value * mouse_x;
else
cl.viewangles[YAW] -= m_yaw.value * mouse_x;
if (in_mlook.state & 1)
V_StopPitchDrift ();
if ( (in_mlook.state & 1) && !(in_strafe.state & 1)) {
cl.viewangles[PITCH] += m_pitch.value * mouse_y;
if (cl.viewangles[PITCH] > 80)
cl.viewangles[PITCH] = 80;
if (cl.viewangles[PITCH] < -70)
cl.viewangles[PITCH] = -70;
} else {
if ((in_strafe.state & 1) && noclip_anglehack)
cmd->upmove -= m_forward.value * mouse_y;
else
cmd->forwardmove -= m_forward.value * mouse_y;
}
mouse_x = mouse_y = 0.0;
}
void VID_LockBuffer (void) {}
void VID_UnlockBuffer (void) {}