newtree/source/vid_glx.c

892 lines
19 KiB
C

/*
vid_glx.c
OpenGL GLX video driver
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <math.h>
#include "bothdefs.h" // needed by: common.h, net.h, client.h
#include "quakedef.h"
#include "bspfile.h" // needed by: glquake.h
#include "vid.h"
#include "sys.h"
#include "zone.h" // needed by: client.h, gl_model.h
#include "mathlib.h" // needed by: protocol.h, render.h, client.h,
// modelgen.h, glmodel.h
#include "wad.h"
#include "draw.h"
#include "cvar.h"
#include "net.h" // needed by: client.h
#include "protocol.h" // needed by: client.h
#include "cmd.h"
#include "keys.h"
#include "sbar.h"
#include "sound.h"
#include "render.h" // needed by: client.h, gl_model.h, glquake.h
#include "client.h" // need cls in this file
#include "model.h" // needed by: glquake.h
#include "console.h"
#include "glquake.h"
#include "qendian.h"
#include "qargs.h"
#include "compat.h"
#include "input.h"
#include <GL/glx.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#ifdef USE_DGA
#include <X11/extensions/xf86dga.h>
#endif
#define WARP_WIDTH 320
#define WARP_HEIGHT 200
extern byte *host_colormap;
extern qboolean noclip_anglehack;
static Display *x_disp = NULL;
static Window x_win;
static GLXContext ctx = NULL;
static float old_windowed_mouse = 0;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
PointerMotionMask)
#define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask)
unsigned short d_8to16table[256];
unsigned d_8to24table[256];
unsigned char d_15to8table[65536];
cvar_t *_windowed_mouse;
cvar_t *vid_mode;
static float mouse_x, mouse_y;
static float old_mouse_x, old_mouse_y;
cvar_t *m_filter;
static int scr_width, scr_height;
/*-----------------------------------------------------------------------*/
//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"};
CVAR_FIXME */
cvar_t *gl_ztrick;
const char *gl_vendor;
const char *gl_renderer;
const char *gl_version;
const char *gl_extensions;
qboolean is8bit = 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)
{
}
/*
========================================================================
Create an empty cursor
========================================================================
*/
static Cursor nullcursor = None;
static Cursor
CreateNullCursor(Display *display, Window root)
{
Pixmap cursormask;
XGCValues xgc;
GC gc;
XColor dummycolour;
if (nullcursor != None) return nullcursor;
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;
nullcursor = XCreatePixmapCursor(display, cursormask, cursormask,
&dummycolour,&dummycolour, 0,0);
XFreePixmap(display,cursormask);
XFreeGC(display,gc);
return nullcursor;
}
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:
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 = '5'; break;
case XK_KP_Insert:
case XK_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';
break;
}
return key;
}
static void install_grabs(void)
{
XGrabPointer(x_disp, x_win,
True,
0,
GrabModeAsync, GrabModeAsync,
x_win,
None,
CurrentTime);
#ifdef USE_DGA
XF86DGADirectVideo(x_disp, DefaultScreen(x_disp), XF86DGADirectMouse);
dgamouse = 1;
#else
XWarpPointer(x_disp, None, x_win,
0, 0, 0, 0,
vid.width / 2, vid.height / 2);
#endif
XGrabKeyboard(x_disp, x_win,
False,
GrabModeAsync, GrabModeAsync,
CurrentTime);
// XSync(x_disp, True);
}
static void uninstall_grabs(void)
{
#ifdef USE_DGA
XF86DGADirectVideo(x_disp, DefaultScreen(x_disp), 0);
dgamouse = 0;
#endif
XUngrabPointer(x_disp, CurrentTime);
XUngrabKeyboard(x_disp, CurrentTime);
// XSync(x_disp, True);
}
static void GetEvent(void)
{
XEvent event;
int b;
if (!x_disp)
return;
XNextEvent(x_disp, &event);
switch (event.type) {
case KeyPress:
case KeyRelease:
Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
break;
case MotionNotify:
#ifdef USE_DGA
/* if (dgamouse && _windowed_mouse.value) {
CVAR_FIXME */
if (dgamouse && _windowed_mouse->value) {
mouse_x = event.xmotion.x_root;
mouse_y = event.xmotion.y_root;
} else
#endif
{
/* if (_windowed_mouse.value) {
CVAR_FIXME */
if (_windowed_mouse->value) {
mouse_x = (float) ((int)event.xmotion.x - (int)(vid.width/2));
mouse_y = (float) ((int)event.xmotion.y - (int)(vid.height/2));
/* move the mouse to the window center again */
XSelectInput(x_disp, x_win, X_MASK & ~PointerMotionMask);
XWarpPointer(x_disp, None, x_win, 0, 0, 0, 0,
(vid.width/2), (vid.height/2));
XSelectInput(x_disp, x_win, X_MASK);
}
}
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)
Key_Event(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)
Key_Event(K_MOUSE1 + b, false);
break;
}
/* if (old_windowed_mouse != _windowed_mouse.value) {
CVAR_FIXME */
if (old_windowed_mouse != _windowed_mouse->value) {
/* old_windowed_mouse = _windowed_mouse.value;
CVAR_FIXME */
old_windowed_mouse = _windowed_mouse->value;
/* if (!_windowed_mouse.value) {
CVAR_FIXME */
if (!_windowed_mouse->value) {
/* ungrab the pointer */
uninstall_grabs();
} else {
/* grab the pointer */
install_grabs();
}
}
}
void VID_Shutdown(void)
{
Con_Printf("VID_Shutdown\n");
if (ctx) {
glXDestroyContext(x_disp, ctx);
}
if (nullcursor != None) {
XFreeCursor(x_disp, nullcursor);
nullcursor = None;
}
XCloseDisplay(x_disp);
}
void signal_handler(int sig)
{
printf("Received signal %d, exiting...\n", sig);
Sys_Quit();
exit(0);
}
void InitSig(void)
{
#if 0
signal(SIGHUP, signal_handler);
signal(SIGINT, 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);
#endif
}
void VID_ShiftPalette(unsigned char *p)
{
VID_SetPalette(p);
}
void VID_SetPalette (unsigned char *palette)
{
byte *pal;
unsigned r,g,b;
unsigned v;
int r1,g1,b1;
int k;
unsigned short i;
unsigned *table;
QFile *f;
char s[255];
float dist, bestdist;
static qboolean palflag = false;
//
// 8 8 8 encoding
//
// Con_DPrintf("Converting 8to24\n");
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) {
Qread(f, d_15to8table, 1<<15);
Qclose(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;
}
snprintf (s, sizeof(s), "%s/glquake", com_gamedir);
Sys_mkdir (s);
snprintf (s, sizeof(s), "%s/glquake/15to8.pal", com_gamedir);
if ((f = Qopen(s, "wb")) != NULL) {
Qwrite(f, d_15to8table, 1<<15);
Qclose(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);
/* glShadeMode(GL_SMOOTH) should look better then GL_FLAT but
I don't know if it looks any better, sure is slower
glShadeModel (GL_SMOOTH);
*/
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)
{
*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(x_disp, x_win);
}
qboolean VID_Is8bit(void)
{
return is8bit;
}
#ifdef GLX_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
void VID_Init8bitPalette(void)
{
}
#if 0
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
#endif
void VID_Init(unsigned char *palette)
{
int i;
int attrib[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None
};
char gldir[MAX_OSPATH];
int width = 640, height = 480;
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
XVisualInfo *visinfo;
vid_mode = Cvar_Get("vid_mode", "0", CVAR_NONE, "None");
gl_ztrick = Cvar_Get("gl_ztrick", "0", CVAR_NONE, "None");
_windowed_mouse = Cvar_Get("_windowed_mouse", "0", CVAR_ARCHIVE, "None");
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 = atoi(com_argv[i+1]);
else
vid.conwidth = width;
vid.conwidth &= 0xfff8; // make it a multiple of eight
vid.conwidth = max(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 = max(atoi(com_argv[i+1]), 200);
if (!(x_disp = XOpenDisplay(NULL))) {
fprintf(stderr, "Error couldn't open the X display\n");
exit(1);
}
scrnum = DefaultScreen(x_disp);
root = RootWindow(x_disp, scrnum);
visinfo = glXChooseVisual(x_disp, scrnum, attrib);
if (!visinfo) {
fprintf(stderr, "qkHack: 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(x_disp, root, visinfo->visual, AllocNone);
attr.event_mask = X_MASK;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
x_win = XCreateWindow(x_disp, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
/* Invisible Cursor */
XDefineCursor(x_disp, x_win, CreateNullCursor(x_disp, x_win));
/* Map the window */
XMapWindow(x_disp, x_win);
XMoveWindow(x_disp, x_win, 0, 0);
XFlush(x_disp);
ctx = glXCreateContext(x_disp, visinfo, NULL, True);
glXMakeCurrent(x_disp, x_win, ctx);
scr_width = width;
scr_height = height;
vid.height = vid.conheight = min(height, vid.conheight);
vid.width = vid.conwidth = min(width, vid.conwidth);
vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
vid.numpages = 2;
InitSig(); // trap evil signals
GL_Init();
snprintf (gldir, sizeof(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 (x_disp) {
while (XPending(x_disp))
GetEvent();
}
}
void Force_CenterView_f (void)
{
cl.viewangles[PITCH] = 0;
}
void IN_Init(void)
{
}
void IN_Shutdown(void)
{
}
/*
===========
IN_Commands
===========
*/
void IN_Commands (void)
{
}
/*
===========
IN_Move
===========
*/
void IN_MouseMove (usercmd_t *cmd)
{
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;
// add mouse X/Y movement to cmd
if ( (in_strafe.state & 1) || (lookstrafe->value && freelook ))
cmd->sidemove += m_side->value * mouse_x;
else
cl.viewangles[YAW] -= m_yaw->value * mouse_x;
if (freelook)
V_StopPitchDrift ();
if ( freelook && !(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 IN_Move (usercmd_t *cmd)
{
IN_MouseMove(cmd);
}
void VID_InitCvars ()
{
m_filter = Cvar_Get("m_filter", "0", CVAR_NONE, "None");
}
void VID_UnlockBuffer() {}
void VID_LockBuffer() {}