diff options
Diffstat (limited to 'demos/3rdparty/doom/f_wipe.c')
| -rw-r--r-- | demos/3rdparty/doom/f_wipe.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/demos/3rdparty/doom/f_wipe.c b/demos/3rdparty/doom/f_wipe.c deleted file mode 100644 index e8596f3a..00000000 --- a/demos/3rdparty/doom/f_wipe.c +++ /dev/null @@ -1,302 +0,0 @@ -// Emacs style mode select -*- C++ -*- -//----------------------------------------------------------------------------- -// -// $Id:$ -// -// Copyright (C) 1993-1996 by id Software, Inc. -// -// This source is available for distribution and/or modification -// only under the terms of the DOOM Source Code License as -// published by id Software. All rights reserved. -// -// The source is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License -// for more details. -// -// $Log:$ -// -// DESCRIPTION: -// Mission begin melt/wipe screen special effect. -// -//----------------------------------------------------------------------------- - - -static const char rcsid[] = "$Id: f_wipe.c,v 1.2 1997/02/03 22:45:09 b1 Exp $"; - - - -#include "z_zone.h" -#include "i_video.h" -#include "v_video.h" -#include "m_random.h" - -#include "doomdef.h" - -#include "f_wipe.h" - -// -// SCREEN WIPE PACKAGE -// - -// when zero, stop the wipe -static boolean go = 0; - -static byte* wipe_scr_start; -static byte* wipe_scr_end; -static byte* wipe_scr; - - -void -wipe_shittyColMajorXform -( short* array, - int width, - int height ) -{ - int x; - int y; - short* dest; - - dest = (short*) Z_Malloc(width*height*2, PU_STATIC, 0); - - for(y=0;y<height;y++) - for(x=0;x<width;x++) - dest[x*height+y] = array[y*width+x]; - - memcpy(array, dest, width*height*2); - - Z_Free(dest); - -} - -int -wipe_initColorXForm -( int width, - int height, - int ticks ) -{ - memcpy(wipe_scr, wipe_scr_start, width*height); - return 0; -} - -int -wipe_doColorXForm -( int width, - int height, - int ticks ) -{ - boolean changed; - byte* w; - byte* e; - int newval; - - changed = false; - w = wipe_scr; - e = wipe_scr_end; - - while (w!=wipe_scr+width*height) - { - if (*w != *e) - { - if (*w > *e) - { - newval = *w - ticks; - if (newval < *e) - *w = *e; - else - *w = newval; - changed = true; - } - else if (*w < *e) - { - newval = *w + ticks; - if (newval > *e) - *w = *e; - else - *w = newval; - changed = true; - } - } - w++; - e++; - } - - return !changed; - -} - -int -wipe_exitColorXForm -( int width, - int height, - int ticks ) -{ - return 0; -} - - -static int* y; - -int -wipe_initMelt -( int width, - int height, - int ticks ) -{ - int i, r; - - // copy start screen to main screen - memcpy(wipe_scr, wipe_scr_start, width*height); - - // makes this wipe faster (in theory) - // to have stuff in column-major format - wipe_shittyColMajorXform((short*)wipe_scr_start, width/2, height); - wipe_shittyColMajorXform((short*)wipe_scr_end, width/2, height); - - // setup initial column positions - // (y<0 => not ready to scroll yet) - y = (int *) Z_Malloc(width*sizeof(int), PU_STATIC, 0); - y[0] = -(M_Random()%16); - for (i=1;i<width;i++) - { - r = (M_Random()%3) - 1; - y[i] = y[i-1] + r; - if (y[i] > 0) y[i] = 0; - else if (y[i] == -16) y[i] = -15; - } - - return 0; -} - -int -wipe_doMelt -( int width, - int height, - int ticks ) -{ - int i; - int j; - int dy; - int idx; - - short* s; - short* d; - boolean done = true; - - width/=2; - - while (ticks--) - { - for (i=0;i<width;i++) - { - if (y[i]<0) - { - y[i]++; done = false; - } - else if (y[i] < height) - { - dy = (y[i] < 16) ? y[i]+1 : 8; - if (y[i]+dy >= height) dy = height - y[i]; - s = &((short *)wipe_scr_end)[i*height+y[i]]; - d = &((short *)wipe_scr)[y[i]*width+i]; - idx = 0; - for (j=dy;j;j--) - { - d[idx] = *(s++); - idx += width; - } - y[i] += dy; - s = &((short *)wipe_scr_start)[i*height]; - d = &((short *)wipe_scr)[y[i]*width+i]; - idx = 0; - for (j=height-y[i];j;j--) - { - d[idx] = *(s++); - idx += width; - } - done = false; - } - } - } - - return done; - -} - -int -wipe_exitMelt -( int width, - int height, - int ticks ) -{ - Z_Free(y); - return 0; -} - -int -wipe_StartScreen -( int x, - int y, - int width, - int height ) -{ - wipe_scr_start = screens[2]; - I_ReadScreen(wipe_scr_start); - return 0; -} - -int -wipe_EndScreen -( int x, - int y, - int width, - int height ) -{ - wipe_scr_end = screens[3]; - I_ReadScreen(wipe_scr_end); - V_DrawBlock(x, y, 0, width, height, wipe_scr_start); // restore start scr. - return 0; -} - -int -wipe_ScreenWipe -( int wipeno, - int x, - int y, - int width, - int height, - int ticks ) -{ - int rc; - static int (*wipes[])(int, int, int) = - { - wipe_initColorXForm, wipe_doColorXForm, wipe_exitColorXForm, - wipe_initMelt, wipe_doMelt, wipe_exitMelt - }; - - void V_MarkRect(int, int, int, int); - - // initial stuff - if (!go) - { - go = 1; - // wipe_scr = (byte *) Z_Malloc(width*height, PU_STATIC, 0); // DEBUG - wipe_scr = screens[0]; - (*wipes[wipeno*3])(width, height, ticks); - } - - // do a piece of wipe-in - V_MarkRect(0, 0, width, height); - rc = (*wipes[wipeno*3+1])(width, height, ticks); - // V_DrawBlock(x, y, 0, width, height, wipe_scr); // DEBUG - - // final stuff - if (rc) - { - go = 0; - (*wipes[wipeno*3+2])(width, height, ticks); - } - - return !go; - -} |