866 lines
17 KiB
C
Executable File
866 lines
17 KiB
C
Executable File
/*
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* gfx.c
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* Copyright (C) 1998 Brainchild Design - http://brainchilddesign.com/
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*
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* Copyright (C) 2001 Chuck Mason <cemason@users.sourceforge.net>
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*
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* Copyright (C) 2002 Florian Schulze <crow@icculus.org>
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*
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* This file is part of Jump'n'Bump.
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*
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* Jump'n'Bump is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Jump'n'Bump 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. See the
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* GNU General Public License for more details.
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*
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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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#include "globals.h"
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#include "SDL_endian.h"
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#include "SDL.h"
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#include "filter.h"
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#include "jumpnbump64.xpm"
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SDL_Surface *icon;
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int screen_width=400;
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int screen_height=256;
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int screen_pitch=400;
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int scale_up=0;
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int dirty_block_shift=4;
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static SDL_Surface *jnb_surface;
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static int fullscreen = 0;
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static int vinited = 0;
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static void *screen_buffer[2];
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static int drawing_enable = 0;
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static void *background = NULL;
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static int background_drawn;
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static void *mask = NULL;
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static int dirty_blocks[2][25*16*2];
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static SDL_Surface *load_xpm_from_array(char **xpm)
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{
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#define NEXT_TOKEN { \
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while ((*p != ' ') && (*p != '\t')) p++; \
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while ((*p == ' ') || (*p == '\t')) p++; }
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SDL_Surface *surface;
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char *p;
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int width;
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int height;
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int colors;
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int images;
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int color;
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int pal[256];
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int x,y;
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p = *xpm++;
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width = atoi(p);
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if (width <= 0)
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return NULL;
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NEXT_TOKEN;
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height = atoi(p);
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if (height <= 0)
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return NULL;
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NEXT_TOKEN;
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colors = atoi(p);
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if (colors <= 0)
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return NULL;
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NEXT_TOKEN;
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images = atoi(p);
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if (images <= 0)
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return NULL;
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surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
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if (!surface)
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return NULL;
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SDL_SetColorKey(surface, SDL_SRCCOLORKEY, SDL_MapRGBA(surface->format, 0, 0, 0, 0));
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while (colors--) {
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p = *xpm++;
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color = *p++;
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NEXT_TOKEN;
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if (*p++ != 'c') {
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SDL_FreeSurface(surface);
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return NULL;
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}
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NEXT_TOKEN;
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if (*p == '#')
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pal[color] = strtoul(++p, NULL, 16) | 0xff000000;
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else
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pal[color] = 0;
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}
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y = 0;
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while (y < height) {
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int *pixels;
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p = *xpm++;
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pixels = (int *)&((char *)surface->pixels)[y++ * surface->pitch];
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x = 0;
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while (x < width) {
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Uint8 r,g,b,a;
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if (*p == '\0') {
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SDL_FreeSurface(surface);
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return NULL;
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}
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r = (pal[(int)*p] >> 16) & 0xff;
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b = (pal[(int)*p] & 0xff);
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g = (pal[(int)*p] >> 8) & 0xff;
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a = (pal[(int)*p] >> 24) & 0xff;
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pixels[x] = SDL_MapRGBA(surface->format, r, g, b, a);
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x++;
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p++;
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}
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}
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return surface;
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}
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unsigned char *get_vgaptr(int page, int x, int y)
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{
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assert(drawing_enable==1);
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return (unsigned char *)screen_buffer[page] + (y*screen_pitch)+(x);
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}
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void set_scaling(int scale)
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{
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if (scale==1) {
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screen_width=800;
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screen_height=512;
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scale_up=1;
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dirty_block_shift=5;
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screen_pitch=screen_width;
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} else {
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screen_width=400;
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screen_height=256;
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scale_up=0;
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dirty_block_shift=4;
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screen_pitch=screen_width;
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}
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}
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void open_screen(void)
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{
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int lval = 0;
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int flags;
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lval = SDL_Init(SDL_INIT_TIMER | SDL_INIT_AUDIO | SDL_INIT_VIDEO );
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if (lval < 0) {
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fprintf(stderr, "SDL ERROR: %s\n", SDL_GetError());
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//exit(EXIT_FAILURE);
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}
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flags = SDL_SWSURFACE;
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if (fullscreen)
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flags |= SDL_FULLSCREEN;
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jnb_surface = SDL_SetVideoMode(screen_width, screen_height, 8, flags);
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if (!jnb_surface) {
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fprintf(stderr, "SDL ERROR: %s\n", SDL_GetError());
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exit(EXIT_FAILURE);
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}
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if(fullscreen)
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SDL_ShowCursor(0);
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else
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SDL_ShowCursor(1);
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SDL_WM_SetCaption("Jump'n'Bump","");
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icon=load_xpm_from_array(jumpnbump_xpm);
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if (icon==NULL) {
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printf("Couldn't load icon\n");
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} else {
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SDL_WM_SetIcon(icon,NULL);
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}
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vinited = 1;
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memset(dirty_blocks, 0, sizeof(dirty_blocks));
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screen_buffer[0]=malloc(screen_width*screen_height);
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screen_buffer[1]=malloc(screen_width*screen_height);
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/*
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dirty_blocks[0]=malloc(sizeof(int)*25*16+1000);
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dirty_blocks[1]=malloc(sizeof(int)*25*16+1000);
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*/
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return;
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}
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void fs_toggle()
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{
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if (!vinited) {
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fullscreen ^= 1;
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return;
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}
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if (SDL_WM_ToggleFullScreen(jnb_surface))
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fullscreen ^= 1;
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}
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void wait_vrt(int mix)
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{
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return;
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}
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void clear_page(int page, int color)
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{
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int i,j;
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unsigned char *buf = get_vgaptr(page, 0, 0);
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assert(drawing_enable==1);
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for (i=0; i<(25*16); i++)
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dirty_blocks[page][i] = 1;
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for (i=0; i<screen_height; i++)
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for (j=0; j<screen_width; j++)
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*buf++ = color;
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}
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void clear_lines(int page, int y, int count, int color)
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{
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int i,j;
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assert(drawing_enable==1);
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if (scale_up) {
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count *= 2;
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y *= 2;
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}
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for (i=0; i<count; i++) {
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if ((i+y)<screen_height) {
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unsigned char *buf = get_vgaptr(page, 0, i+y);
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for (j=0; j<screen_width; j++)
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*buf++ = color;
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}
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}
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count = ((y+count)>>dirty_block_shift) - (y>>dirty_block_shift) + 1;
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y >>= dirty_block_shift;
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for (i=0; i<count; i++)
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for (j=0; j<25; j++)
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dirty_blocks[page][(y+i)*25+j] = 1;
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}
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int get_color(int color, char pal[768])
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{
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assert(color<256);
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assert(pal);
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return SDL_MapRGB(jnb_surface->format, (Uint8)(pal[color*3+0]<<2), (Uint8)(pal[color*3+1]<<2), (Uint8)(pal[color*3+2]<<2));
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}
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int get_pixel(int page, int x, int y)
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{
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assert(drawing_enable==1);
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if (scale_up) {
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x *= 2;
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y *= 2;
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}
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assert(x<screen_width);
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assert(y<screen_height);
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return *(unsigned char *)get_vgaptr(page, x, y);
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}
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void set_pixel(int page, int x, int y, int color)
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{
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assert(drawing_enable==1);
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if (scale_up) {
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x *= 2;
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y *= 2;
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}
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assert(x<screen_width);
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assert(y<screen_height);
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dirty_blocks[page][(y>>dirty_block_shift)*25+(x>>dirty_block_shift)] = 1;
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*(unsigned char *)get_vgaptr(page, x, y) = color;
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}
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void flippage(int page)
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{
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int x,y;
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unsigned char *src;
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unsigned char *dest;
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assert(drawing_enable==0);
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SDL_LockSurface(jnb_surface);
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if (!jnb_surface->pixels) {
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for (x=0; x<(25*16); x++) {
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dirty_blocks[0][x] = 1;
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dirty_blocks[1][x] = 1;
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}
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return;
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}
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dest=(unsigned char *)jnb_surface->pixels;
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src=screen_buffer[page];
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for (y=0; y<screen_height; y++) {
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for (x=0; x<25; x++) {
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int count;
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int test_x;
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count=0;
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test_x=x;
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while ( (test_x<25) && (dirty_blocks[page][(y>>dirty_block_shift)*25+test_x]) ) {
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count++;
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test_x++;
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}
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if (count) {
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memcpy( &dest[y*jnb_surface->pitch+(x<<dirty_block_shift)],
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&src[y*screen_pitch+((x<<dirty_block_shift))],
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((16<<dirty_block_shift)>>4)*count);
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}
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x = test_x;
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}
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}
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memset(&dirty_blocks[page], 0, sizeof(int)*25*16);
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SDL_UnlockSurface(jnb_surface);
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SDL_Flip(jnb_surface);
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}
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void draw_begin(void)
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{
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assert(drawing_enable==0);
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drawing_enable = 1;
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if (background_drawn == 0) {
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if (background) {
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put_block(0, 0, 0, JNB_WIDTH, JNB_HEIGHT, background);
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put_block(1, 0, 0, JNB_WIDTH, JNB_HEIGHT, background);
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} else {
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clear_page(0, 0);
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clear_page(1, 0);
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}
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background_drawn = 1;
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}
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}
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void draw_end(void)
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{
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assert(drawing_enable==1);
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drawing_enable = 0;
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}
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void setpalette(int index, int count, char *palette)
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{
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SDL_Color colors[256];
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int i;
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assert(drawing_enable==0);
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for (i = 0; i < count; i++) {
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colors[i+index].r = palette[i * 3 + 0] << 2;
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colors[i+index].g = palette[i * 3 + 1] << 2;
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colors[i+index].b = palette[i * 3 + 2] << 2;
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}
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SDL_SetColors(jnb_surface, &colors[index], index, count);
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}
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void fillpalette(int red, int green, int blue)
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{
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SDL_Color colors[256];
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int i;
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assert(drawing_enable==0);
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for (i = 0; i < 256; i++) {
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colors[i].r = red << 2;
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colors[i].g = green << 2;
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colors[i].b = blue << 2;
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}
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SDL_SetColors(jnb_surface, colors, 0, 256);
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}
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void get_block(int page, int x, int y, int width, int height, void *buffer)
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{
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unsigned char *buffer_ptr, *vga_ptr;
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int h;
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assert(drawing_enable==1);
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if (scale_up) {
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x *= 2;
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y *= 2;
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width *= 2;
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height *= 2;
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}
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if (x < 0)
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x = 0;
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if (y < 0)
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y = 0;
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if (y + height >= screen_height)
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height = screen_height - y;
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if (x + width >= screen_width)
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width = screen_width - x;
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if (width<=0)
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return;
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if(height<=0)
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return;
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vga_ptr = get_vgaptr(page, x, y);
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buffer_ptr = buffer;
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for (h = 0; h < height; h++) {
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memcpy(buffer_ptr, vga_ptr, width);
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vga_ptr += screen_pitch;
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buffer_ptr += width;
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}
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}
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void put_block(int page, int x, int y, int width, int height, void *buffer)
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{
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int h;
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unsigned char *vga_ptr, *buffer_ptr;
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assert(drawing_enable==1);
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if (scale_up) {
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x *= 2;
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y *= 2;
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width *= 2;
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height *= 2;
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}
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if (x < 0)
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x = 0;
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if (y < 0)
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y = 0;
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if (y + height >= screen_height)
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height = screen_height - y;
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if (x + width >= screen_width)
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width = screen_width - x;
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if (width<=0)
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return;
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if(height<=0)
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return;
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vga_ptr = get_vgaptr(page, x, y);
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buffer_ptr = buffer;
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for (h = 0; h < height; h++) {
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memcpy(vga_ptr, buffer_ptr, width);
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vga_ptr += screen_pitch;
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buffer_ptr += width;
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}
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width = ((x+width)>>dirty_block_shift) - (x>>dirty_block_shift) + 1;
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height = ((y+height)>>dirty_block_shift) - (y>>dirty_block_shift) + 1;
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x >>= dirty_block_shift;
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y >>= dirty_block_shift;
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while (width--)
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for (h=0; h<height; h++)
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dirty_blocks[page][(y+h)*25+(x+width)] = 1;
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}
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void put_text(int page, int x, int y, char *text, int align)
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{
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int c1;
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int t1;
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int width;
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int cur_x;
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int image;
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assert(drawing_enable==1);
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if (text == NULL || strlen(text) == 0)
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return;
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if (font_gobs.num_images == 0)
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return;
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width = 0;
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c1 = 0;
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while (text[c1] != 0) {
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t1 = text[c1];
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c1++;
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if (t1 == ' ') {
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width += 5;
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continue;
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}
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if (t1 >= 33 && t1 <= 34)
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image = t1 - 33;
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else if (t1 >= 39 && t1 <= 41)
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image = t1 - 37;
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else if (t1 >= 44 && t1 <= 59)
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image = t1 - 39;
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else if (t1 >= 64 && t1 <= 90)
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image = t1 - 43;
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else if (t1 >= 97 && t1 <= 122)
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image = t1 - 49;
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else if (t1 == '~')
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image = 74;
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else if (t1 == 0x84)
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image = 75;
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else if (t1 == 0x86)
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image = 76;
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else if (t1 == 0x8e)
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image = 77;
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else if (t1 == 0x8f)
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image = 78;
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else if (t1 == 0x94)
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image = 79;
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else if (t1 == 0x99)
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image = 80;
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else
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continue;
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width += pob_width(image, &font_gobs) + 1;
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}
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switch (align) {
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case 0:
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cur_x = x;
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break;
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case 1:
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cur_x = x - width;
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break;
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case 2:
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cur_x = x - width / 2;
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break;
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default:
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cur_x = 0; /* this should cause error? -Chuck */
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break;
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}
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c1 = 0;
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while (text[c1] != 0) {
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t1 = text[c1];
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c1++;
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if (t1 == ' ') {
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cur_x += 5;
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continue;
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}
|
|
if (t1 >= 33 && t1 <= 34)
|
|
image = t1 - 33;
|
|
|
|
else if (t1 >= 39 && t1 <= 41)
|
|
image = t1 - 37;
|
|
|
|
else if (t1 >= 44 && t1 <= 59)
|
|
image = t1 - 39;
|
|
|
|
else if (t1 >= 64 && t1 <= 90)
|
|
image = t1 - 43;
|
|
|
|
else if (t1 >= 97 && t1 <= 122)
|
|
image = t1 - 49;
|
|
|
|
else if (t1 == '~')
|
|
image = 74;
|
|
|
|
else if (t1 == 0x84)
|
|
image = 75;
|
|
|
|
else if (t1 == 0x86)
|
|
image = 76;
|
|
|
|
else if (t1 == 0x8e)
|
|
image = 77;
|
|
|
|
else if (t1 == 0x8f)
|
|
image = 78;
|
|
|
|
else if (t1 == 0x94)
|
|
image = 79;
|
|
|
|
else if (t1 == 0x99)
|
|
image = 80;
|
|
|
|
else
|
|
continue;
|
|
put_pob(page, cur_x, y, image, &font_gobs, 1, mask_pic);
|
|
cur_x += pob_width(image, &font_gobs) + 1;
|
|
}
|
|
}
|
|
|
|
|
|
void put_pob(int page, int x, int y, int image, gob_t *gob, int use_mask, void *mask_pic)
|
|
{
|
|
int c1, c2;
|
|
int pob_x, pob_y;
|
|
int width, height;
|
|
int draw_width, draw_height;
|
|
int colour;
|
|
unsigned char *vga_ptr;
|
|
unsigned char *pob_ptr;
|
|
unsigned char *mask_ptr;
|
|
|
|
assert(drawing_enable==1);
|
|
assert(gob);
|
|
assert(image>=0);
|
|
assert(image<gob->num_images);
|
|
|
|
if (scale_up) {
|
|
x *= 2;
|
|
y *= 2;
|
|
width = draw_width = gob->width[image]*2;
|
|
height = draw_height = gob->height[image]*2;
|
|
x -= gob->hs_x[image]*2;
|
|
y -= gob->hs_y[image]*2;
|
|
} else {
|
|
width = draw_width = gob->width[image];
|
|
height = draw_height = gob->height[image];
|
|
x -= gob->hs_x[image];
|
|
y -= gob->hs_y[image];
|
|
}
|
|
|
|
if ((x + width) <= 0 || x >= screen_width)
|
|
return;
|
|
if ((y + height) <= 0 || y >= screen_height)
|
|
return;
|
|
|
|
pob_x = 0;
|
|
pob_y = 0;
|
|
if (x < 0) {
|
|
pob_x -= x;
|
|
draw_width += x;
|
|
x = 0;
|
|
}
|
|
if ((x + width) > screen_width)
|
|
draw_width -= x + width - screen_width;
|
|
if (y < 0) {
|
|
pob_y -= y;
|
|
draw_height += y;
|
|
y = 0;
|
|
}
|
|
if ((y + height) > screen_height)
|
|
draw_height -= y + height - screen_height;
|
|
|
|
vga_ptr = get_vgaptr(page, x, y);
|
|
pob_ptr = ((unsigned char *)gob->data[image]) + ((pob_y * width) + pob_x);
|
|
mask_ptr = ((unsigned char *)mask) + ((y * screen_pitch) + (x));
|
|
for (c1 = 0; c1 < draw_height; c1++) {
|
|
for (c2 = 0; c2 < draw_width; c2++) {
|
|
colour = *mask_ptr;
|
|
if (use_mask == 0 || (use_mask == 1 && colour == 0)) {
|
|
colour = *pob_ptr;
|
|
if (colour != 0) {
|
|
*vga_ptr = colour;
|
|
}
|
|
}
|
|
vga_ptr++;
|
|
pob_ptr++;
|
|
mask_ptr++;
|
|
}
|
|
pob_ptr += width - c2;
|
|
vga_ptr += (screen_width - c2);
|
|
mask_ptr += (screen_width - c2);
|
|
}
|
|
draw_width = ((x+draw_width)>>dirty_block_shift) - (x>>dirty_block_shift) + 1;
|
|
draw_height = ((y+draw_height)>>dirty_block_shift) - (y>>dirty_block_shift) + 1;
|
|
x >>= dirty_block_shift;
|
|
y >>= dirty_block_shift;
|
|
while (draw_width--)
|
|
for (c1=0; c1<draw_height; c1++)
|
|
dirty_blocks[page][(y+c1)*25+(x+draw_width)] = 1;
|
|
}
|
|
|
|
|
|
int pob_width(int image, gob_t *gob)
|
|
{
|
|
assert(gob);
|
|
assert(image>=0);
|
|
assert(image<gob->num_images);
|
|
return gob->width[image];
|
|
}
|
|
|
|
|
|
int pob_height(int image, gob_t *gob)
|
|
{
|
|
assert(gob);
|
|
assert(image>=0);
|
|
assert(image<gob->num_images);
|
|
return gob->height[image];
|
|
}
|
|
|
|
|
|
int pob_hs_x(int image, gob_t *gob)
|
|
{
|
|
assert(gob);
|
|
assert(image>=0);
|
|
assert(image<gob->num_images);
|
|
return gob->hs_x[image];
|
|
}
|
|
|
|
|
|
int pob_hs_y(int image, gob_t *gob)
|
|
{
|
|
assert(gob);
|
|
assert(image>=0);
|
|
assert(image<gob->num_images);
|
|
return gob->hs_y[image];
|
|
}
|
|
|
|
|
|
int read_pcx(unsigned char * handle, void *buf, int buf_len, char *pal)
|
|
{
|
|
unsigned char *buffer=buf;
|
|
short c1;
|
|
short a, b;
|
|
long ofs1;
|
|
if (buffer != 0) {
|
|
handle += 128;
|
|
ofs1 = 0;
|
|
while (ofs1 < buf_len) {
|
|
a = *(handle++);
|
|
if ((a & 0xc0) == 0xc0) {
|
|
b = *(handle++);
|
|
a &= 0x3f;
|
|
for (c1 = 0; c1 < a && ofs1 < buf_len; c1++)
|
|
buffer[ofs1++] = (char) b;
|
|
} else
|
|
buffer[ofs1++] = (char) a;
|
|
}
|
|
if (pal != 0) {
|
|
handle++;
|
|
for (c1 = 0; c1 < 768; c1++)
|
|
pal[c1] = *(handle++) /*fgetc(handle)*/ >> 2;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
void register_background(char *pixels, char pal[768])
|
|
{
|
|
if (background) {
|
|
free(background);
|
|
background = NULL;
|
|
}
|
|
background_drawn = 0;
|
|
if (!pixels)
|
|
return;
|
|
assert(pal);
|
|
if (scale_up) {
|
|
background = malloc(screen_pitch*screen_height);
|
|
assert(background);
|
|
do_scale2x((unsigned char *)pixels, JNB_WIDTH, JNB_HEIGHT, (unsigned char *)background);
|
|
} else {
|
|
background = malloc(JNB_WIDTH*JNB_HEIGHT);
|
|
assert(background);
|
|
memcpy(background, pixels, JNB_WIDTH*JNB_HEIGHT);
|
|
}
|
|
}
|
|
|
|
int register_gob(unsigned char *handle, gob_t *gob, int len)
|
|
{
|
|
unsigned char *gob_data;
|
|
int i;
|
|
|
|
gob_data = malloc(len);
|
|
memcpy(gob_data, handle, len);
|
|
|
|
gob->num_images = (short)((gob_data[0]) + (gob_data[1] << 8));
|
|
|
|
gob->width = malloc(gob->num_images*sizeof(int));
|
|
gob->height = malloc(gob->num_images*sizeof(int));
|
|
gob->hs_x = malloc(gob->num_images*sizeof(int));
|
|
gob->hs_y = malloc(gob->num_images*sizeof(int));
|
|
gob->data = malloc(gob->num_images*sizeof(void *));
|
|
gob->orig_data = malloc(gob->num_images*sizeof(void *));
|
|
for (i=0; i<gob->num_images; i++) {
|
|
int image_size;
|
|
int offset;
|
|
|
|
offset = (gob_data[i*4+2]) + (gob_data[i*4+3] << 8) + (gob_data[i*4+4] << 16) + (gob_data[i*4+5] << 24);
|
|
|
|
gob->width[i] = (short)((gob_data[offset]) + (gob_data[offset+1] << 8)); offset += 2;
|
|
gob->height[i] = (short)((gob_data[offset]) + (gob_data[offset+1] << 8)); offset += 2;
|
|
gob->hs_x[i] = (short)((gob_data[offset]) + (gob_data[offset+1] << 8)); offset += 2;
|
|
gob->hs_y[i] = (short)((gob_data[offset]) + (gob_data[offset+1] << 8)); offset += 2;
|
|
|
|
image_size = gob->width[i] * gob->height[i];
|
|
gob->orig_data[i] = malloc(image_size);
|
|
memcpy(gob->orig_data[i], &gob_data[offset], image_size);
|
|
if (scale_up) {
|
|
image_size = gob->width[i] * gob->height[i] * 4;
|
|
gob->data[i] = malloc(image_size);
|
|
do_scale2x((unsigned char *)gob->orig_data[i], gob->width[i], gob->height[i], (unsigned char *)gob->data[i]);
|
|
} else {
|
|
gob->data[i] = (unsigned short *)gob->orig_data[i];
|
|
}
|
|
}
|
|
free(gob_data);
|
|
return 0;
|
|
}
|
|
|
|
|
|
void recalculate_gob(gob_t *gob, char pal[768])
|
|
{
|
|
}
|
|
|
|
void register_mask(void *pixels)
|
|
{
|
|
if (mask) {
|
|
free(mask);
|
|
mask = NULL;
|
|
}
|
|
assert(pixels);
|
|
if (scale_up) {
|
|
mask = malloc(screen_pitch*screen_height);
|
|
assert(mask);
|
|
do_scale2x((unsigned char *)pixels, JNB_WIDTH, JNB_HEIGHT, (unsigned char *)mask);
|
|
} else {
|
|
mask = malloc(JNB_WIDTH*JNB_HEIGHT);
|
|
assert(mask);
|
|
memcpy(mask, pixels, JNB_WIDTH*JNB_HEIGHT);
|
|
}
|
|
}
|