forked from KolibriOS/kolibrios
903 lines
17 KiB
C
903 lines
17 KiB
C
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/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// draw.c -- this is the only file outside the refresh that touches the
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// vid buffer
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#include "quakedef.h"
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typedef struct {
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vrect_t rect;
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int width;
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int height;
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byte *ptexbytes;
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int rowbytes;
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} rectdesc_t;
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static rectdesc_t r_rectdesc;
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byte *draw_chars; // 8*8 graphic characters
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qpic_t *draw_disc;
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qpic_t *draw_backtile;
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//=============================================================================
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/* Support Routines */
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typedef struct cachepic_s
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{
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char name[MAX_QPATH];
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cache_user_t cache;
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} cachepic_t;
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#define MAX_CACHED_PICS 128
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cachepic_t menu_cachepics[MAX_CACHED_PICS];
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int menu_numcachepics;
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qpic_t *Draw_PicFromWad (char *name)
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{
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return W_GetLumpName (name);
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}
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/*
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================
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Draw_CachePic
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================
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*/
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qpic_t *Draw_CachePic (char *path)
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{
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cachepic_t *pic;
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int i;
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qpic_t *dat;
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for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)
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if (!strcmp (path, pic->name))
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break;
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if (i == menu_numcachepics)
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{
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if (menu_numcachepics == MAX_CACHED_PICS)
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Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");
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menu_numcachepics++;
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strcpy (pic->name, path);
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}
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dat = Cache_Check (&pic->cache);
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if (dat)
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return dat;
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//
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// load the pic from disk
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//
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COM_LoadCacheFile (path, &pic->cache);
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dat = (qpic_t *)pic->cache.data;
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if (!dat)
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{
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Sys_Error ("Draw_CachePic: failed to load %s", path);
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}
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SwapPic (dat);
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return dat;
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}
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/*
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===============
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Draw_Init
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===============
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*/
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void Draw_Init (void)
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{
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int i;
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draw_chars = W_GetLumpName ("conchars");
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draw_disc = W_GetLumpName ("disc");
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draw_backtile = W_GetLumpName ("backtile");
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r_rectdesc.width = draw_backtile->width;
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r_rectdesc.height = draw_backtile->height;
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r_rectdesc.ptexbytes = draw_backtile->data;
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r_rectdesc.rowbytes = draw_backtile->width;
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}
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/*
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================
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Draw_Character
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Draws one 8*8 graphics character with 0 being transparent.
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It can be clipped to the top of the screen to allow the console to be
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smoothly scrolled off.
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================
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*/
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void Draw_Character (int x, int y, int num)
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{
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byte *dest;
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byte *source;
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unsigned short *pusdest;
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int drawline;
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int row, col;
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num &= 255;
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if (y <= -8)
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return; // totally off screen
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#ifdef PARANOID
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if (y > vid.height - 8 || x < 0 || x > vid.width - 8)
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Sys_Error ("Con_DrawCharacter: (%i, %i)", x, y);
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if (num < 0 || num > 255)
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Sys_Error ("Con_DrawCharacter: char %i", num);
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#endif
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row = num>>4;
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col = num&15;
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source = draw_chars + (row<<10) + (col<<3);
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if (y < 0)
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{ // clipped
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drawline = 8 + y;
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source -= 128*y;
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y = 0;
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}
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else
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drawline = 8;
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if (r_pixbytes == 1)
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{
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dest = vid.conbuffer + y*vid.conrowbytes + x;
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while (drawline--)
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{
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if (source[0])
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dest[0] = source[0];
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if (source[1])
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dest[1] = source[1];
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if (source[2])
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dest[2] = source[2];
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if (source[3])
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dest[3] = source[3];
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if (source[4])
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dest[4] = source[4];
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if (source[5])
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dest[5] = source[5];
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if (source[6])
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dest[6] = source[6];
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if (source[7])
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dest[7] = source[7];
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source += 128;
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dest += vid.conrowbytes;
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}
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}
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else
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{
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// FIXME: pre-expand to native format?
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pusdest = (unsigned short *)
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((byte *)vid.conbuffer + y*vid.conrowbytes + (x<<1));
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while (drawline--)
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{
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if (source[0])
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pusdest[0] = d_8to16table[source[0]];
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if (source[1])
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pusdest[1] = d_8to16table[source[1]];
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if (source[2])
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pusdest[2] = d_8to16table[source[2]];
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if (source[3])
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pusdest[3] = d_8to16table[source[3]];
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if (source[4])
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pusdest[4] = d_8to16table[source[4]];
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if (source[5])
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pusdest[5] = d_8to16table[source[5]];
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if (source[6])
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pusdest[6] = d_8to16table[source[6]];
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if (source[7])
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pusdest[7] = d_8to16table[source[7]];
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source += 128;
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pusdest += (vid.conrowbytes >> 1);
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}
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}
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}
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/*
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================
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Draw_String
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================
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*/
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void Draw_String (int x, int y, char *str)
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{
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while (*str)
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{
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Draw_Character (x, y, *str);
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str++;
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x += 8;
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}
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}
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/*
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================
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Draw_DebugChar
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Draws a single character directly to the upper right corner of the screen.
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This is for debugging lockups by drawing different chars in different parts
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of the code.
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================
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*/
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void Draw_DebugChar (char num)
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{
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byte *dest;
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byte *source;
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int drawline;
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extern byte *draw_chars;
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int row, col;
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if (!vid.direct)
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return; // don't have direct FB access, so no debugchars...
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drawline = 8;
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row = num>>4;
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col = num&15;
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source = draw_chars + (row<<10) + (col<<3);
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dest = vid.direct + 312;
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while (drawline--)
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{
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dest[0] = source[0];
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dest[1] = source[1];
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dest[2] = source[2];
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dest[3] = source[3];
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dest[4] = source[4];
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dest[5] = source[5];
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dest[6] = source[6];
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dest[7] = source[7];
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source += 128;
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dest += 320;
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}
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}
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/*
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=============
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Draw_Pic
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=============
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*/
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void Draw_Pic (int x, int y, qpic_t *pic)
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{
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byte *dest, *source;
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unsigned short *pusdest;
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int v, u;
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if ((x < 0) ||
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(x + pic->width > vid.width) ||
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(y < 0) ||
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(y + pic->height > vid.height))
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{
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Sys_Error ("Draw_Pic: bad coordinates");
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}
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source = pic->data;
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if (r_pixbytes == 1)
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{
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dest = vid.buffer + y * vid.rowbytes + x;
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for (v=0 ; v<pic->height ; v++)
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{
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Q_memcpy (dest, source, pic->width);
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dest += vid.rowbytes;
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source += pic->width;
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}
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}
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else
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{
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// FIXME: pretranslate at load time?
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pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u++)
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{
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pusdest[u] = d_8to16table[source[u]];
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}
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pusdest += vid.rowbytes >> 1;
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source += pic->width;
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}
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}
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}
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/*
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=============
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Draw_TransPic
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=============
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*/
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void Draw_TransPic (int x, int y, qpic_t *pic)
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{
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byte *dest, *source, tbyte;
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unsigned short *pusdest;
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int v, u;
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if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
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(unsigned)(y + pic->height) > vid.height)
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{
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Sys_Error ("Draw_TransPic: bad coordinates");
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}
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source = pic->data;
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if (r_pixbytes == 1)
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{
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dest = vid.buffer + y * vid.rowbytes + x;
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if (pic->width & 7)
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{ // general
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u++)
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if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
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dest[u] = tbyte;
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dest += vid.rowbytes;
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source += pic->width;
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}
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}
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else
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{ // unwound
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u+=8)
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{
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if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
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dest[u] = tbyte;
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if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)
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dest[u+1] = tbyte;
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if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)
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dest[u+2] = tbyte;
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if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)
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dest[u+3] = tbyte;
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if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)
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dest[u+4] = tbyte;
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if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)
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dest[u+5] = tbyte;
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if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)
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dest[u+6] = tbyte;
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if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)
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dest[u+7] = tbyte;
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}
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dest += vid.rowbytes;
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source += pic->width;
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}
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}
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}
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else
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{
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// FIXME: pretranslate at load time?
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pusdest = (unsigned short *)vid.buffer + y * (vid.rowbytes >> 1) + x;
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u++)
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{
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tbyte = source[u];
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if (tbyte != TRANSPARENT_COLOR)
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{
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pusdest[u] = d_8to16table[tbyte];
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}
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}
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pusdest += vid.rowbytes >> 1;
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source += pic->width;
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}
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}
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}
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/*
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=============
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Draw_TransPicTranslate
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=============
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*/
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void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
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{
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byte *dest, *source, tbyte;
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unsigned short *pusdest;
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int v, u;
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if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
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(unsigned)(y + pic->height) > vid.height)
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{
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Sys_Error ("Draw_TransPic: bad coordinates");
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}
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source = pic->data;
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if (r_pixbytes == 1)
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{
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dest = vid.buffer + y * vid.rowbytes + x;
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if (pic->width & 7)
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{ // general
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u++)
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if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
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dest[u] = translation[tbyte];
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dest += vid.rowbytes;
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source += pic->width;
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}
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}
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else
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{ // unwound
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for (v=0 ; v<pic->height ; v++)
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{
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for (u=0 ; u<pic->width ; u+=8)
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{
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if ( (tbyte=source[u]) != TRANSPARENT_COLOR)
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dest[u] = translation[tbyte];
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if ( (tbyte=source[u+1]) != TRANSPARENT_COLOR)
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dest[u+1] = translation[tbyte];
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if ( (tbyte=source[u+2]) != TRANSPARENT_COLOR)
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dest[u+2] = translation[tbyte];
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if ( (tbyte=source[u+3]) != TRANSPARENT_COLOR)
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dest[u+3] = translation[tbyte];
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if ( (tbyte=source[u+4]) != TRANSPARENT_COLOR)
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dest[u+4] = translation[tbyte];
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if ( (tbyte=source[u+5]) != TRANSPARENT_COLOR)
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dest[u+5] = translation[tbyte];
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if ( (tbyte=source[u+6]) != TRANSPARENT_COLOR)
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dest[u+6] = translation[tbyte];
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if ( (tbyte=source[u+7]) != TRANSPARENT_COLOR)
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||
|
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);
|
||
|
}
|
||
|
|