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quakeforge-old/common/gl_vidlinux_3dfx.c

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/*
gl_vidlinux_3dfx.c
OpenGL device driver for 3Dfx chipsets running Linux
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999-2000 The QuakeForge Project.
Portions Copyright their respective authors.
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 "vga.h"
#include "vgakeyboard.h"
#include "vgamouse.h"
#include "quakedef.h"
#include "GL/fxmesa.h"
#define WARP_WIDTH 320
#define WARP_HEIGHT 200
static fxMesaContext fc = NULL;
#define stringify(m) { #m, m }
unsigned short d_8to16table[256];
unsigned d_8to24table[256];
unsigned char d_15to8table[65536];
int num_shades=32;
struct
{
char *name;
int num;
} mice[] =
{
stringify(MOUSE_MICROSOFT),
stringify(MOUSE_MOUSESYSTEMS),
stringify(MOUSE_MMSERIES),
stringify(MOUSE_LOGITECH),
stringify(MOUSE_BUSMOUSE),
stringify(MOUSE_PS2),
};
static unsigned char scantokey[128];
int num_mice = sizeof (mice) / sizeof(mice[0]);
int d_con_indirect = 0;
int svgalib_inited=0;
int UseMouse = 1;
int UseKeyboard = 1;
int mouserate = MOUSE_DEFAULTSAMPLERATE;
cvar_t _windowed_mouse = {"_windowed_mouse","0", true};
cvar_t vid_mode = {"vid_mode","5",false};
cvar_t vid_redrawfull = {"vid_redrawfull","0",false};
cvar_t vid_waitforrefresh = {"vid_waitforrefresh","0",true};
char *framebuffer_ptr;
cvar_t mouse_button_commands[3] =
{
{"mouse1","+attack"},
{"mouse2","+strafe"},
{"mouse3","+forward"},
};
int mouse_buttons;
int mouse_buttonstate;
int mouse_oldbuttonstate;
float mouse_x, mouse_y;
float old_mouse_x, old_mouse_y;
int mx, my;
cvar_t m_filter = {"m_filter","1"};
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", true};
const char *gl_vendor;
const char *gl_renderer;
const char *gl_version;
const char *gl_extensions;
#ifndef QUAKEWORLD
void (*qgl3DfxSetPaletteEXT) (GLuint *);
void (*qglColorTableEXT) (int, int, int, int, int, const void *);
static float vid_gamma = 1.0;
#endif // !QUAKEWORLD
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)
{
}
int matchmouse(int mouse, char *name)
{
int i;
for (i=0 ; i<num_mice ; i++)
if (!strcmp(mice[i].name, name))
return i;
return mouse;
}
#if 0
void vtswitch(int newconsole)
{
int fd;
struct vt_stat x;
// switch consoles and wait until reactivated
fd = open("/dev/console", O_RDONLY);
ioctl(fd, VT_GETSTATE, &x);
ioctl(fd, VT_ACTIVATE, newconsole);
ioctl(fd, VT_WAITACTIVE, x.v_active);
close(fd);
}
#endif
void keyhandler(int scancode, int state)
{
int sc;
sc = scancode & 0x7f;
Key_Event(scantokey[sc], state == KEY_EVENTPRESS);
}
void VID_Shutdown(void)
{
if (!fc)
return;
fxMesaDestroyContext(fc);
if (UseKeyboard)
keyboard_close();
}
void signal_handler(int sig)
{
printf("Received signal %d, exiting...\n", sig);
Sys_Quit();
exit(0);
}
void InitSig(void)
{
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);
}
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;
FILE *f;
char s[255];
float dist, bestdist;
static qboolean palflag = false;
//
// 8 8 8 encoding
//
Con_Printf("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.
#ifdef QUAKEWORLD
// 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 {
#else // QUAKEWORLD
{
#endif // QUAKEWORLD
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;
}
#ifdef QUAKEWORLD
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);
}
#endif // QUAKEWORLD
}
}
/*
===============
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)
{
*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();
fxMesaSwapBuffers();
}
void Init_KBD(void)
{
int i;
if (COM_CheckParm("-nokbd")) UseKeyboard = 0;
if (UseKeyboard)
{
for (i=0 ; i<128 ; i++)
scantokey[i] = ' ';
scantokey[1 ] = K_ESCAPE;
scantokey[2] = '1';
scantokey[3] = '2';
scantokey[4] = '3';
scantokey[5] = '4';
scantokey[6] = '5';
scantokey[7] = '6';
scantokey[8] = '7';
scantokey[9] = '8';
scantokey[10] = '9';
scantokey[11] = '0';
scantokey[12] = '-';
scantokey[13] = '=';
scantokey[14] = K_BACKSPACE;
scantokey[15] = K_TAB;
scantokey[16] = 'q';
scantokey[17] = 'w';
scantokey[18] = 'e';
scantokey[19] = 'r';
scantokey[20] = 't';
scantokey[21] = 'y';
scantokey[22] = 'u';
scantokey[23] = 'i';
scantokey[24] = 'o';
scantokey[25] = 'p';
scantokey[26] = '[';
scantokey[27] = ']';
scantokey[28] = K_ENTER;
scantokey[29] = K_CTRL;
scantokey[30] = 'a';
scantokey[31] = 's';
scantokey[32] = 'd';
scantokey[33] = 'f';
scantokey[34] = 'g';
scantokey[35] = 'h';
scantokey[36] = 'j';
scantokey[37] = 'k';
scantokey[38] = 'l';
scantokey[39] = ';';
scantokey[40] = '\'';
scantokey[41] = '`';
scantokey[42] = K_SHIFT;
scantokey[43] = '\\';
scantokey[44] = 'z';
scantokey[45] = 'x';
scantokey[46] = 'c';
scantokey[47] = 'v';
scantokey[48] = 'b';
scantokey[49] = 'n';
scantokey[50] = 'm';
scantokey[51] = ',';
scantokey[52] = '.';
scantokey[53] = '/';
scantokey[54] = K_SHIFT;
scantokey[55] = KP_MULTIPLY;
scantokey[56] = K_ALT;
scantokey[57] = ' ';
// scantokey[58] = JK_CAPS;
scantokey[59] = K_F1;
scantokey[60] = K_F2;
scantokey[61] = K_F3;
scantokey[62] = K_F4;
scantokey[63] = K_F5;
scantokey[64] = K_F6;
scantokey[65] = K_F7;
scantokey[66] = K_F8;
scantokey[67] = K_F9;
scantokey[68] = K_F10;
scantokey[69] = KP_NUM;
// scantokey[70] = FIXME!!
scantokey[71] = KP_HOME;
scantokey[72] = KP_UPARROW;
scantokey[73] = KP_PGUP;
scantokey[74] = KP_MINUS;
scantokey[75] = KP_LEFTARROW;
scantokey[76] = KP_5;
scantokey[77] = KP_RIGHTARROW;
scantokey[78] = KP_PLUS;
scantokey[79] = KP_END;
scantokey[80] = KP_DOWNARROW;
scantokey[81] = KP_PGDN;
scantokey[82] = KP_INS;
scantokey[83] = KP_DEL;
// FIXME! 84 - 86
scantokey[87] = K_F11;
scantokey[88] = K_F12;
// FIXME! 89 - 95
scantokey[96] = KP_ENTER;
scantokey[97] = K_CTRL;
scantokey[98] = KP_DIVIDE;
scantokey[100] = K_ALT;
scantokey[102] = K_HOME;
scantokey[103] = K_UPARROW;
scantokey[104] = K_PGUP;
scantokey[105] = K_LEFTARROW;
scantokey[106] = K_RIGHTARROW;
scantokey[107] = K_END;
scantokey[108] = K_DOWNARROW;
scantokey[109] = K_PGDN;
scantokey[110] = K_INS;
scantokey[111] = K_DEL;
scantokey[119] = K_PAUSE;
if (keyboard_init())
Sys_Error("keyboard_init() failed");
keyboard_seteventhandler(keyhandler);
}
}
#define NUM_RESOLUTIONS 3
static int resolutions[NUM_RESOLUTIONS][3]={
{ 512, 384, GR_RESOLUTION_512x384 },
{ 640, 400, GR_RESOLUTION_640x400 },
{ 640, 480, GR_RESOLUTION_640x480 }
};
int findres(int *width, int *height)
{
int i;
for(i=0;i<NUM_RESOLUTIONS;i++)
if((*width<=resolutions[i][0]) && (*height<=resolutions[i][1])) {
*width = resolutions[i][0];
*height = resolutions[i][1];
return resolutions[i][2];
}
*width = 640;
*height = 480;
return GR_RESOLUTION_640x480;
}
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;
GLint attribs[32];
char gldir[MAX_OSPATH];
int width = 640, height = 480;
S_Init();
Init_KBD();
Cvar_RegisterVariable (&vid_mode);
Cvar_RegisterVariable (&vid_redrawfull);
Cvar_RegisterVariable (&vid_waitforrefresh);
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
attribs[0] = FXMESA_DOUBLEBUFFER;
attribs[1] = FXMESA_ALPHA_SIZE;
attribs[2] = 1;
attribs[3] = FXMESA_DEPTH_SIZE;
attribs[4] = 1;
attribs[5] = FXMESA_NONE;
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;
fc = fxMesaCreateContext(0, findres(&width, &height), GR_REFRESH_75Hz,
attribs);
if (!fc)
Sys_Error("Unable to create 3DFX context.\n");
scr_width = width;
scr_height = height;
fxMesaMakeCurrent(fc);
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 (UseKeyboard)
while (keyboard_update());
}
void Force_CenterView_f (void)
{
cl.viewangles[PITCH] = 0;
}
void mousehandler(int buttonstate, int dx, int dy)
{
mouse_buttonstate = buttonstate;
mx += dx;
my += dy;
}
void IN_Init(void)
{
int mtype;
char *mousedev;
int mouserate;
if (UseMouse)
{
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);
mouse_buttons = 3;
mtype = vga_getmousetype();
mousedev = "/dev/mouse";
if (getenv("MOUSEDEV")) mousedev = getenv("MOUSEDEV");
if (COM_CheckParm("-mdev"))
mousedev = com_argv[COM_CheckParm("-mdev")+1];
mouserate = 1200;
if (getenv("MOUSERATE")) mouserate = atoi(getenv("MOUSERATE"));
if (COM_CheckParm("-mrate"))
mouserate = atoi(com_argv[COM_CheckParm("-mrate")+1]);
if (mouse_init(mousedev, mtype, mouserate))
{
Con_Printf("No mouse found\n");
UseMouse = 0;
}
else
mouse_seteventhandler(mousehandler);
}
}
void IN_Shutdown(void)
{
if (UseMouse)
mouse_close();
}
/*
===========
IN_Commands
===========
*/
void IN_Commands (void)
{
if (UseMouse)
{
// poll mouse values
while (mouse_update())
;
// perform button actions
if ((mouse_buttonstate & MOUSE_LEFTBUTTON) &&
!(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
Key_Event (K_MOUSE1, true);
else if (!(mouse_buttonstate & MOUSE_LEFTBUTTON) &&
(mouse_oldbuttonstate & MOUSE_LEFTBUTTON))
Key_Event (K_MOUSE1, false);
if ((mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
!(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
Key_Event (K_MOUSE2, true);
else if (!(mouse_buttonstate & MOUSE_RIGHTBUTTON) &&
(mouse_oldbuttonstate & MOUSE_RIGHTBUTTON))
Key_Event (K_MOUSE2, false);
if ((mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
!(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
Key_Event (K_MOUSE3, true);
else if (!(mouse_buttonstate & MOUSE_MIDDLEBUTTON) &&
(mouse_oldbuttonstate & MOUSE_MIDDLEBUTTON))
Key_Event (K_MOUSE3, false);
mouse_oldbuttonstate = mouse_buttonstate;
}
}
/*
===========
IN_Move
===========
*/
void IN_MouseMove (usercmd_t *cmd)
{
if (!UseMouse)
return;
// poll mouse values
while (mouse_update())
;
if (m_filter.value)
{
mouse_x = (mx + old_mouse_x) * 0.5;
mouse_y = (my + old_mouse_y) * 0.5;
}
else
{
mouse_x = mx;
mouse_y = my;
}
old_mouse_x = mx;
old_mouse_y = my;
mx = my = 0; // clear for next update
mouse_x *= sensitivity.value;
mouse_y *= sensitivity.value;
// add mouse X/Y movement to cmd
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;
}
}
void IN_Move (usercmd_t *cmd)
{
IN_MouseMove(cmd);
}
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