| 1 | /* |
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| 2 | * Abuse - dark 2D side-scrolling platform game |
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| 3 | * Copyright (c) 1995 Crack dot Com |
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| 4 | * Copyright (c) 2005-2011 Sam Hocevar <sam@hocevar.net> |
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| 5 | * |
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| 6 | * This software was released into the Public Domain. As with most public |
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| 7 | * domain software, no warranty is made or implied by Crack dot Com or |
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| 8 | * Jonathan Clark. |
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| 9 | */ |
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| 10 | |
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| 11 | #include "config.h" |
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| 12 | |
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| 13 | #include "common.h" |
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| 14 | |
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| 15 | #include "transp.h" |
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| 16 | |
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| 17 | void transp_put(image *im, image *screen, uint8_t *table, int x, int y) |
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| 18 | { |
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| 19 | int cx1, cy1, cx2, cy2; |
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| 20 | screen->GetClip(cx1, cy1, cx2, cy2); |
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| 21 | int xs=0,ys=0,xl=im->Size().x,yl=im->Size().y; |
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| 22 | if (x<cx1) |
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| 23 | { |
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| 24 | int chop=cx1-x; |
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| 25 | xs+=chop; |
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| 26 | xl-=chop; |
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| 27 | x+=chop; |
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| 28 | } |
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| 29 | if (y<cy1) |
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| 30 | { |
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| 31 | int chop=cy1-y; |
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| 32 | ys+=chop; |
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| 33 | yl-=chop; |
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| 34 | y+=chop; |
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| 35 | } |
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| 36 | if (x + xl >= cx2) |
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| 37 | xl = cx2 - 1 - x; |
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| 38 | if (y + yl >= cy2) |
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| 39 | yl = cy2 - 1 - y; |
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| 40 | |
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| 41 | if (xl<0 || yl<0) return ; |
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| 42 | screen->AddDirty(x, y, x + xl, y + yl); |
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| 43 | |
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| 44 | int ye=ys+yl; |
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| 45 | int xe=xs+xl; |
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| 46 | |
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| 47 | uint8_t *isl=im->scan_line(ys)+xs; |
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| 48 | uint8_t *ssl=screen->scan_line(y)+x; |
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| 49 | int iw=im->Size().x,sw=screen->Size().x; |
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| 50 | |
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| 51 | for (int iy=ys; iy<ye; iy++,y++,isl+=iw,ssl+=sw) |
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| 52 | { |
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| 53 | uint8_t *s=ssl,*i=isl; |
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| 54 | for (int ix=xs; ix<xe; ix++,s++,i++) |
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| 55 | { |
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| 56 | if (*i) |
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| 57 | *s=*i; |
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| 58 | else *s=table[*s]; |
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| 59 | } |
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| 60 | } |
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| 61 | } |
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| 62 | |
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| 63 | |
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| 64 | /* |
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| 65 | void transp_put(image *im, image *screen, uint8_t *table, int x, int y) |
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| 66 | { |
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| 67 | int cx1, cy1, cx2, cy2; |
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| 68 | screen->GetClip(cx1, cy1, cx2, cy2); |
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| 69 | int xs=0,ys=0,xl=im->width(),yl=im->height(); |
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| 70 | if (x<cx1) |
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| 71 | { |
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| 72 | int chop=cx1-x; |
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| 73 | xs+=chop; |
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| 74 | xl-=chop; |
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| 75 | x+=chop; |
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| 76 | } |
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| 77 | if (y<cy1) |
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| 78 | { |
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| 79 | int chop=cy1-y; |
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| 80 | ys+=chop; |
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| 81 | yl-=chop; |
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| 82 | y+=chop; |
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| 83 | } |
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| 84 | if (x + xl >= cx2) |
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| 85 | xl = cx2 - 1 - x; |
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| 86 | if (y + yl >= cy2) |
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| 87 | yl = cy2 - 1 - y; |
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| 88 | |
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| 89 | if (xl<0 || yl<0) return ; |
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| 90 | screen->AddDirty(x, y, x + xl - 1, y + yl); |
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| 91 | |
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| 92 | int ye=ys+yl; |
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| 93 | int xe=xs+xl; |
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| 94 | |
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| 95 | uint8_t *isl=im->scan_line(ys)+xs; |
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| 96 | uint8_t *ssl=screen->scan_line(y)+x; |
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| 97 | int iw=im->width(),sw=screen->width(); |
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| 98 | |
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| 99 | for (int iy=ys; iy<ye; iy++,y++,isl+=iw,ssl+=sw) |
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| 100 | { |
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| 101 | uint8_t *s=ssl,*i=isl; |
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| 102 | for (int ix=xs; ix<xe; ix++,s++,i++) |
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| 103 | *s=table[((*i)<<8)|(*s)]; |
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| 104 | } |
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| 105 | } |
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| 106 | |
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| 107 | |
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| 108 | */ |
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