1 | #include "transp.hpp" |
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2 | |
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3 | |
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4 | void transp_put(image *im, image *screen, uint8_t *table, int x, int y) |
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5 | { |
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6 | short cx1,cy1,cx2,cy2; |
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7 | screen->get_clip(cx1,cy1,cx2,cy2); |
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8 | int xs=0,ys=0,xl=im->width(),yl=im->height(); |
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9 | if (x<cx1) |
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10 | { |
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11 | int chop=cx1-x; |
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12 | xs+=chop; |
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13 | xl-=chop; |
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14 | x+=chop; |
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15 | } |
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16 | if (y<cy1) |
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17 | { |
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18 | int chop=cy1-y; |
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19 | ys+=chop; |
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20 | yl-=chop; |
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21 | y+=chop; |
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22 | } |
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23 | if (x+xl>cx2) |
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24 | xl=cx2-x; |
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25 | if (y+yl>cy2) |
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26 | yl=cy2-y; |
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27 | |
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28 | if (xl<0 || yl<0) return ; |
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29 | screen->add_dirty(x,y,x+xl-1,y+yl-1); |
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30 | |
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31 | int ye=ys+yl; |
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32 | int xe=xs+xl; |
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33 | |
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34 | uint8_t *isl=im->scan_line(ys)+xs; |
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35 | uint8_t *ssl=screen->scan_line(y)+x; |
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36 | int iw=im->width(),sw=screen->width(); |
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37 | |
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38 | for (int iy=ys;iy<ye;iy++,y++,isl+=iw,ssl+=sw) |
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39 | { |
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40 | uint8_t *s=ssl,*i=isl; |
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41 | for (int ix=xs;ix<xe;ix++,s++,i++) |
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42 | { |
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43 | if (*i) |
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44 | *s=*i; |
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45 | else *s=table[*s]; |
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46 | } |
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47 | } |
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48 | } |
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49 | |
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50 | |
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51 | /* |
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52 | void transp_put(image *im, image *screen, uint8_t *table, int x, int y) |
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53 | { |
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54 | short cx1,cy1,cx2,cy2; |
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55 | screen->get_clip(cx1,cy1,cx2,cy2); |
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56 | int xs=0,ys=0,xl=im->width(),yl=im->height(); |
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57 | if (x<cx1) |
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58 | { |
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59 | int chop=cx1-x; |
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60 | xs+=chop; |
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61 | xl-=chop; |
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62 | x+=chop; |
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63 | } |
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64 | if (y<cy1) |
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65 | { |
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66 | int chop=cy1-y; |
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67 | ys+=chop; |
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68 | yl-=chop; |
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69 | y+=chop; |
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70 | } |
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71 | if (x+xl>cx2) |
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72 | xl=cx2-x; |
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73 | if (y+yl>cy2) |
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74 | yl=cy2-y; |
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75 | |
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76 | if (xl<0 || yl<0) return ; |
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77 | screen->add_dirty(x,y,x+xl-1,y+yl-1); |
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78 | |
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79 | int ye=ys+yl; |
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80 | int xe=xs+xl; |
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81 | |
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82 | uint8_t *isl=im->scan_line(ys)+xs; |
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83 | uint8_t *ssl=screen->scan_line(y)+x; |
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84 | int iw=im->width(),sw=screen->width(); |
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85 | |
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86 | for (int iy=ys;iy<ye;iy++,y++,isl+=iw,ssl+=sw) |
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87 | { |
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88 | uint8_t *s=ssl,*i=isl; |
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89 | for (int ix=xs;ix<xe;ix++,s++,i++) |
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90 | *s=table[((*i)<<8)|(*s)]; |
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91 | } |
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92 | } |
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93 | |
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94 | |
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95 | */ |
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