// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // $Id: f_wipe.c 8 2005-07-23 16:44:57Z fraggle $ // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard // // 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. // // $Log$ // Revision 1.2 2005/07/23 16:44:55 fraggle // Update copyright to GNU GPL // // Revision 1.1.1.1 2005/07/23 16:19:45 fraggle // Initial import // // // DESCRIPTION: // Mission begin melt/wipe screen special effect. // //----------------------------------------------------------------------------- static const char rcsid[] = "$Id: f_wipe.c 8 2005-07-23 16:44:57Z fraggle $"; #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 *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 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= 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; }