0,0 → 1,902 |
/* |
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) |
{ |
int i; |
|
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 |
|
#ifdef PARANOID |
if (y > vid.height - 8 || x < 0 || x > vid.width - 8) |
Sys_Error ("Con_DrawCharacter: (%i, %i)", x, y); |
if (num < 0 || num > 255) |
Sys_Error ("Con_DrawCharacter: char %i", num); |
#endif |
|
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_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_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]; |
|
conback = Draw_CachePic ("gfx/conback.lmp"); |
|
// hack the version number directly into the pic |
#ifdef _WIN32 |
sprintf (ver, "(WinQuake) %4.2f", (float)VERSION); |
dest = conback->data + 320*186 + 320 - 11 - 8*strlen(ver); |
#elif defined(X11) |
sprintf (ver, "(X11 Quake %2.2f) %4.2f", (float)X11_VERSION, (float)VERSION); |
dest = conback->data + 320*186 + 320 - 11 - 8*strlen(ver); |
#elif defined(__linux__) |
sprintf (ver, "(Linux Quake %2.2f) %4.2f", (float)LINUX_VERSION, (float)VERSION); |
dest = conback->data + 320*186 + 320 - 11 - 8*strlen(ver); |
#else |
dest = conback->data + 320 - 43 + 320*186; |
sprintf (ver, "%4.2f", VERSION); |
#endif |
|
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; |
} |
} |
} |
} |
|
|
/* |
============== |
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 (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); |
} |
|