quakeforge-old/qw_client/draw.c
Zephaniah E. Hull e468985ee1 Added common/config.h.in, moving the version and a few other variables
there, more will be added later as needed..

Added -Wall to the cflags on a few things, may have missed some stuff..

Changed the tests on HAVE_GL_COLOR_INDEX8_EXT to actually function..
(Fixes the GL texture problem..)

Added tests for GLAPIENTRY and APIENTRY, there will alweys be
something..

Fixed the check for the 3dfxgl lib..

Some makefile tweaking..

Changed VERSION into a string so it can easily be 0.1.0..

Removed the generated configure script, does not merge sanely..
1999-12-31 02:59:25 +00:00

1021 lines
19 KiB
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.
*/
// draw.c -- this is the only file outside the refresh that touches the
// vid buffer
#include "quakedef.h"
typedef struct {
vrect_t rect;
int width;
int height;
byte *ptexbytes;
int rowbytes;
} rectdesc_t;
static rectdesc_t r_rectdesc;
byte *draw_chars; // 8*8 graphic characters
qpic_t *draw_disc;
qpic_t *draw_backtile;
//=============================================================================
/* Support Routines */
typedef struct cachepic_s
{
char name[MAX_QPATH];
cache_user_t cache;
} cachepic_t;
#define MAX_CACHED_PICS 128
cachepic_t menu_cachepics[MAX_CACHED_PICS];
int menu_numcachepics;
qpic_t *Draw_PicFromWad (char *name)
{
return W_GetLumpName (name);
}
/*
================
Draw_CachePic
================
*/
qpic_t *Draw_CachePic (char *path)
{
cachepic_t *pic;
int i;
qpic_t *dat;
for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)
if (!strcmp (path, pic->name))
break;
if (i == menu_numcachepics)
{
if (menu_numcachepics == MAX_CACHED_PICS)
Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");
menu_numcachepics++;
strcpy (pic->name, path);
}
dat = Cache_Check (&pic->cache);
if (dat)
return dat;
//
// load the pic from disk
//
COM_LoadCacheFile (path, &pic->cache);
dat = (qpic_t *)pic->cache.data;
if (!dat)
{
Sys_Error ("Draw_CachePic: failed to load %s", path);
}
SwapPic (dat);
return dat;
}
/*
===============
Draw_Init
===============
*/
void Draw_Init (void)
{
draw_chars = W_GetLumpName ("conchars");
draw_disc = W_GetLumpName ("disc");
draw_backtile = W_GetLumpName ("backtile");
r_rectdesc.width = draw_backtile->width;
r_rectdesc.height = draw_backtile->height;
r_rectdesc.ptexbytes = draw_backtile->data;
r_rectdesc.rowbytes = draw_backtile->width;
}
/*
================
Draw_Character
Draws one 8*8 graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void Draw_Character (int x, int y, int num)
{
byte *dest;
byte *source;
unsigned short *pusdest;
int drawline;
int row, col;
num &= 255;
if (y <= -8)
return; // totally off screen
if (y > vid.height - 8 || x < 0 || x > vid.width - 8)
return;
if (num < 0 || num > 255)
return;
row = num>>4;
col = num&15;
source = draw_chars + (row<<10) + (col<<3);
if (y < 0)
{ // clipped
drawline = 8 + y;
source -= 128*y;
y = 0;
}
else
drawline = 8;
if (r_pixbytes == 1)
{
dest = vid.conbuffer + y*vid.conrowbytes + x;
while (drawline--)
{
if (source[0])
dest[0] = source[0];
if (source[1])
dest[1] = source[1];
if (source[2])
dest[2] = source[2];
if (source[3])
dest[3] = source[3];
if (source[4])
dest[4] = source[4];
if (source[5])
dest[5] = source[5];
if (source[6])
dest[6] = source[6];
if (source[7])
dest[7] = source[7];
source += 128;
dest += vid.conrowbytes;
}
}
else
{
// FIXME: pre-expand to native format?
pusdest = (unsigned short *)
((byte *)vid.conbuffer + y*vid.conrowbytes + (x<<1));
while (drawline--)
{
if (source[0])
pusdest[0] = d_8to16table[source[0]];
if (source[1])
pusdest[1] = d_8to16table[source[1]];
if (source[2])
pusdest[2] = d_8to16table[source[2]];
if (source[3])
pusdest[3] = d_8to16table[source[3]];
if (source[4])
pusdest[4] = d_8to16table[source[4]];
if (source[5])
pusdest[5] = d_8to16table[source[5]];
if (source[6])
pusdest[6] = d_8to16table[source[6]];
if (source[7])
pusdest[7] = d_8to16table[source[7]];
source += 128;
pusdest += (vid.conrowbytes >> 1);
}
}
}
/*
================
Draw_String
================
*/
void Draw_String (int x, int y, char *str)
{
while (*str)
{
Draw_Character (x, y, *str);
str++;
x += 8;
}
}
/*
================
Draw_Alt_String
================
*/
void Draw_Alt_String (int x, int y, char *str)
{
while (*str)
{
Draw_Character (x, y, (*str) | 0x80);
str++;
x += 8;
}
}
void Draw_Pixel(int x, int y, byte color)
{
byte *dest;
unsigned short *pusdest;
if (r_pixbytes == 1)
{
dest = vid.conbuffer + y*vid.conrowbytes + x;
*dest = color;
}
else
{
// FIXME: pre-expand to native format?
pusdest = (unsigned short *)
((byte *)vid.conbuffer + y*vid.conrowbytes + (x<<1));
*pusdest = d_8to16table[color];
}
}
void Draw_Crosshair(void)
{
int x, y;
extern cvar_t crosshair, cl_crossx, cl_crossy, crosshaircolor;
extern vrect_t scr_vrect;
byte c = (byte)crosshaircolor.value;
if (crosshair.value == 2) {
x = scr_vrect.x + scr_vrect.width/2 + cl_crossx.value;
y = scr_vrect.y + scr_vrect.height/2 + cl_crossy.value;
Draw_Pixel(x - 1, y, c);
Draw_Pixel(x - 3, y, c);
Draw_Pixel(x + 1, y, c);
Draw_Pixel(x + 3, y, c);
Draw_Pixel(x, y - 1, c);
Draw_Pixel(x, y - 3, c);
Draw_Pixel(x, y + 1, c);
Draw_Pixel(x, y + 3, c);
} else if (crosshair.value)
Draw_Character (
scr_vrect.x + scr_vrect.width/2-4 + cl_crossx.value,
scr_vrect.y + scr_vrect.height/2-4 + cl_crossy.value,
'+');
}
/*
================
Draw_DebugChar
Draws a single character directly to the upper right corner of the screen.
This is for debugging lockups by drawing different chars in different parts
of the code.
================
*/
void Draw_DebugChar (char num)
{
byte *dest;
byte *source;
int drawline;
extern byte *draw_chars;
int row, col;
if (!vid.direct)
return; // don't have direct FB access, so no debugchars...
drawline = 8;
row = num>>4;
col = num&15;
source = draw_chars + (row<<10) + (col<<3);
dest = vid.direct + 312;
while (drawline--)
{
dest[0] = source[0];
dest[1] = source[1];
dest[2] = source[2];
dest[3] = source[3];
dest[4] = source[4];
dest[5] = source[5];
dest[6] = source[6];
dest[7] = source[7];
source += 128;
dest += 320;
}
}
/*
=============
Draw_Pic
=============
*/
void Draw_Pic (int x, int y, qpic_t *pic)
{
byte *dest, *source;
unsigned short *pusdest;
int v, u;
if ((x < 0) ||
(x + pic->width > vid.width) ||
(y < 0) ||
(y + pic->height > vid.height))
{
Sys_Error ("Draw_Pic: bad coordinates");
}
source = pic->data;
if (r_pixbytes == 1)
{
dest = vid.buffer + y * vid.rowbytes + x;
for (v=0 ; v<pic->height ; v++)
{
Q_memcpy (dest, source, pic->width);
dest += vid.rowbytes;
source += pic->width;
}
}
else
{
// FIXME: pretranslate at load time?
pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u++)
{
pusdest[u] = d_8to16table[source[u]];
}
pusdest += vid.rowbytes >> 1;
source += pic->width;
}
}
}
/*
=============
Draw_SubPic
=============
*/
void Draw_SubPic(int x, int y, qpic_t *pic, int srcx, int srcy, int width, int height)
{
byte *dest, *source;
unsigned short *pusdest;
int v, u;
if ((x < 0) ||
(x + width > vid.width) ||
(y < 0) ||
(y + height > vid.height))
{
Sys_Error ("Draw_Pic: bad coordinates");
}
source = pic->data + srcy * pic->width + srcx;
if (r_pixbytes == 1)
{
dest = vid.buffer + y * vid.rowbytes + x;
for (v=0 ; v<height ; v++)
{
Q_memcpy (dest, source, width);
dest += vid.rowbytes;
source += pic->width;
}
}
else
{
// FIXME: pretranslate at load time?
pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
for (v=0 ; v<height ; v++)
{
for (u=srcx ; u<(srcx+width) ; u++)
{
pusdest[u] = d_8to16table[source[u]];
}
pusdest += vid.rowbytes >> 1;
source += pic->width;
}
}
}
/*
=============
Draw_TransPic
=============
*/
void Draw_TransPic (int x, int y, qpic_t *pic)
{
byte *dest, *source, tbyte;
unsigned short *pusdest;
int v, u;
if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
(unsigned)(y + pic->height) > vid.height)
{
Sys_Error ("Draw_TransPic: bad coordinates");
}
source = pic->data;
if (r_pixbytes == 1)
{
dest = vid.buffer + y * vid.rowbytes + x;
if (pic->width & 7)
{ // general
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u++)
if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
dest[u] = tbyte;
dest += vid.rowbytes;
source += pic->width;
}
}
else
{ // unwound
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u+=8)
{
if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
dest[u] = tbyte;
if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)
dest[u+1] = tbyte;
if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)
dest[u+2] = tbyte;
if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)
dest[u+3] = tbyte;
if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)
dest[u+4] = tbyte;
if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)
dest[u+5] = tbyte;
if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)
dest[u+6] = tbyte;
if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)
dest[u+7] = tbyte;
}
dest += vid.rowbytes;
source += pic->width;
}
}
}
else
{
// FIXME: pretranslate at load time?
pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u++)
{
tbyte = source[u];
if (tbyte != TRANSPARENT_COLOR)
{
pusdest[u] = d_8to16table[tbyte];
}
}
pusdest += vid.rowbytes >> 1;
source += pic->width;
}
}
}
/*
=============
Draw_TransPicTranslate
=============
*/
void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
{
byte *dest, *source, tbyte;
unsigned short *pusdest;
int v, u;
if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
(unsigned)(y + pic->height) > vid.height)
{
Sys_Error ("Draw_TransPic: bad coordinates");
}
source = pic->data;
if (r_pixbytes == 1)
{
dest = vid.buffer + y * vid.rowbytes + x;
if (pic->width & 7)
{ // general
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u++)
if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
dest[u] = translation[tbyte];
dest += vid.rowbytes;
source += pic->width;
}
}
else
{ // unwound
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u+=8)
{
if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
dest[u] = translation[tbyte];
if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)
dest[u+1] = translation[tbyte];
if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)
dest[u+2] = translation[tbyte];
if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)
dest[u+3] = translation[tbyte];
if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)
dest[u+4] = translation[tbyte];
if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)
dest[u+5] = translation[tbyte];
if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)
dest[u+6] = translation[tbyte];
if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)
dest[u+7] = translation[tbyte];
}
dest += vid.rowbytes;
source += pic->width;
}
}
}
else
{
// FIXME: pretranslate at load time?
pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
for (v=0 ; v<pic->height ; v++)
{
for (u=0 ; u<pic->width ; u++)
{
tbyte = source[u];
if (tbyte != TRANSPARENT_COLOR)
{
pusdest[u] = d_8to16table[tbyte];
}
}
pusdest += vid.rowbytes >> 1;
source += pic->width;
}
}
}
void Draw_CharToConback (int num, byte *dest)
{
int row, col;
byte *source;
int drawline;
int x;
row = num>>4;
col = num&15;
source = draw_chars + (row<<10) + (col<<3);
drawline = 8;
while (drawline--)
{
for (x=0 ; x<8 ; x++)
if (source[x])
dest[x] = 0x60 + source[x];
source += 128;
dest += 320;
}
}
/*
================
Draw_ConsoleBackground
================
*/
void Draw_ConsoleBackground (int lines)
{
int x, y, v;
byte *src, *dest;
unsigned short *pusdest;
int f, fstep;
qpic_t *conback;
char ver[100];
static char saveback[320*8];
conback = Draw_CachePic ("gfx/conback.lmp");
// hack the version number directly into the pic
//sprintf (ver, "start commands with a \\ character %4.2f", VERSION);
if (cls.download) {
sprintf (ver, "%s", VERSION);
dest = conback->data + 320 + 320*186 - 11 - 8*strlen(ver);
} else {
#if defined(__linux__)
//sprintf (ver, "Linux (%4.2f) QuakeWorld %4.2f", LINUX_VERSION, VERSION);
sprintf (ver, "QuakeForge (Linux QuakeWorld) Version %s", VERSION);
#else
sprintf (ver, "QuakeForge (QuakeWorld) %s", VERSION);
#endif
dest = conback->data + 320 - (strlen(ver)*8 + 11) + 320*186;
}
memcpy(saveback, conback->data + 320*186, 320*8);
for (x=0 ; x<strlen(ver) ; x++)
Draw_CharToConback (ver[x], dest+(x<<3));
// draw the pic
if (r_pixbytes == 1)
{
dest = vid.conbuffer;
for (y=0 ; y<lines ; y++, dest += vid.conrowbytes)
{
v = (vid.conheight - lines + y)*200/vid.conheight;
src = conback->data + v*320;
if (vid.conwidth == 320)
memcpy (dest, src, vid.conwidth);
else
{
f = 0;
fstep = 320*0x10000/vid.conwidth;
for (x=0 ; x<vid.conwidth ; x+=4)
{
dest[x] = src[f>>16];
f += fstep;
dest[x+1] = src[f>>16];
f += fstep;
dest[x+2] = src[f>>16];
f += fstep;
dest[x+3] = src[f>>16];
f += fstep;
}
}
}
}
else
{
pusdest = (unsigned short *)vid.conbuffer;
for (y=0 ; y<lines ; y++, pusdest += (vid.conrowbytes >> 1))
{
// FIXME: pre-expand to native format?
// FIXME: does the endian switching go away in production?
v = (vid.conheight - lines + y)*200/vid.conheight;
src = conback->data + v*320;
f = 0;
fstep = 320*0x10000/vid.conwidth;
for (x=0 ; x<vid.conwidth ; x+=4)
{
pusdest[x] = d_8to16table[src[f>>16]];
f += fstep;
pusdest[x+1] = d_8to16table[src[f>>16]];
f += fstep;
pusdest[x+2] = d_8to16table[src[f>>16]];
f += fstep;
pusdest[x+3] = d_8to16table[src[f>>16]];
f += fstep;
}
}
}
// put it back
memcpy(conback->data + 320*186, saveback, 320*8);
}
/*
==============
R_DrawRect8
==============
*/
void R_DrawRect8 (vrect_t *prect, int rowbytes, byte *psrc,
int transparent)
{
byte t;
int i, j, srcdelta, destdelta;
byte *pdest;
pdest = vid.buffer + (prect->y * vid.rowbytes) + prect->x;
srcdelta = rowbytes - prect->width;
destdelta = vid.rowbytes - prect->width;
if (transparent)
{
for (i=0 ; i<prect->height ; i++)
{
for (j=0 ; j<prect->width ; j++)
{
t = *psrc;
if (t != TRANSPARENT_COLOR)
{
*pdest = t;
}
psrc++;
pdest++;
}
psrc += srcdelta;
pdest += destdelta;
}
}
else
{
for (i=0 ; i<prect->height ; i++)
{
memcpy (pdest, psrc, prect->width);
psrc += rowbytes;
pdest += vid.rowbytes;
}
}
}
/*
==============
R_DrawRect16
==============
*/
void R_DrawRect16 (vrect_t *prect, int rowbytes, byte *psrc,
int transparent)
{
byte t;
int i, j, srcdelta, destdelta;
unsigned short *pdest;
// FIXME: would it be better to pre-expand native-format versions?
pdest = (unsigned short *)vid.buffer +
(prect->y * (vid.rowbytes >> 1)) + prect->x;
srcdelta = rowbytes - prect->width;
destdelta = (vid.rowbytes >> 1) - prect->width;
if (transparent)
{
for (i=0 ; i<prect->height ; i++)
{
for (j=0 ; j<prect->width ; j++)
{
t = *psrc;
if (t != TRANSPARENT_COLOR)
{
*pdest = d_8to16table[t];
}
psrc++;
pdest++;
}
psrc += srcdelta;
pdest += destdelta;
}
}
else
{
for (i=0 ; i<prect->height ; i++)
{
for (j=0 ; j<prect->width ; j++)
{
*pdest = d_8to16table[*psrc];
psrc++;
pdest++;
}
psrc += srcdelta;
pdest += destdelta;
}
}
}
/*
=============
Draw_TileClear
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void Draw_TileClear (int x, int y, int w, int h)
{
int width, height, tileoffsetx, tileoffsety;
byte *psrc;
vrect_t vr;
r_rectdesc.rect.x = x;
r_rectdesc.rect.y = y;
r_rectdesc.rect.width = w;
r_rectdesc.rect.height = h;
vr.y = r_rectdesc.rect.y;
height = r_rectdesc.rect.height;
tileoffsety = vr.y % r_rectdesc.height;
while (height > 0)
{
vr.x = r_rectdesc.rect.x;
width = r_rectdesc.rect.width;
if (tileoffsety != 0)
vr.height = r_rectdesc.height - tileoffsety;
else
vr.height = r_rectdesc.height;
if (vr.height > height)
vr.height = height;
tileoffsetx = vr.x % r_rectdesc.width;
while (width > 0)
{
if (tileoffsetx != 0)
vr.width = r_rectdesc.width - tileoffsetx;
else
vr.width = r_rectdesc.width;
if (vr.width > width)
vr.width = width;
psrc = r_rectdesc.ptexbytes +
(tileoffsety * r_rectdesc.rowbytes) + tileoffsetx;
if (r_pixbytes == 1)
{
R_DrawRect8 (&vr, r_rectdesc.rowbytes, psrc, 0);
}
else
{
R_DrawRect16 (&vr, r_rectdesc.rowbytes, psrc, 0);
}
vr.x += vr.width;
width -= vr.width;
tileoffsetx = 0; // only the left tile can be left-clipped
}
vr.y += vr.height;
height -= vr.height;
tileoffsety = 0; // only the top tile can be top-clipped
}
}
/*
=============
Draw_Fill
Fills a box of pixels with a single color
=============
*/
void Draw_Fill (int x, int y, int w, int h, int c)
{
byte *dest;
unsigned short *pusdest;
unsigned uc;
int u, v;
if (x < 0 || x + w > vid.width ||
y < 0 || y + h > vid.height) {
Con_Printf("Bad Draw_Fill(%d, %d, %d, %d, %c)\n",
x, y, w, h, c);
return;
}
if (r_pixbytes == 1)
{
dest = vid.buffer + y*vid.rowbytes + x;
for (v=0 ; v<h ; v++, dest += vid.rowbytes)
for (u=0 ; u<w ; u++)
dest[u] = c;
}
else
{
uc = d_8to16table[c];
pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
for (v=0 ; v<h ; v++, pusdest += (vid.rowbytes >> 1))
for (u=0 ; u<w ; u++)
pusdest[u] = uc;
}
}
//=============================================================================
/*
================
Draw_FadeScreen
================
*/
void Draw_FadeScreen (void)
{
int x,y;
byte *pbuf;
VID_UnlockBuffer ();
S_ExtraUpdate ();
VID_LockBuffer ();
for (y=0 ; y<vid.height ; y++)
{
int t;
pbuf = (byte *)(vid.buffer + vid.rowbytes*y);
t = (y & 1) << 1;
for (x=0 ; x<vid.width ; x++)
{
if ((x & 3) != t)
pbuf[x] = 0;
}
}
VID_UnlockBuffer ();
S_ExtraUpdate ();
VID_LockBuffer ();
}
//=============================================================================
/*
================
Draw_BeginDisc
Draws the little blue disc in the corner of the screen.
Call before beginning any disc IO.
================
*/
void Draw_BeginDisc (void)
{
D_BeginDirectRect (vid.width - 24, 0, draw_disc->data, 24, 24);
}
/*
================
Draw_EndDisc
Erases the disc icon.
Call after completing any disc IO
================
*/
void Draw_EndDisc (void)
{
D_EndDirectRect (vid.width - 24, 0, 24, 24);
}