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- /*
- 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, "%4.2f", 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);
- #else
- sprintf (ver, "QuakeWorld %4.2f", 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);
- }
-
-