| 75 |
|
int xres, yres; |
| 76 |
|
int xbeg, ybeg; |
| 77 |
|
FILE *fp; |
| 78 |
< |
int j; |
| 79 |
< |
register int k, c; |
| 80 |
< |
register BYTE *in; |
| 81 |
< |
short *out; |
| 78 |
> |
int y; |
| 79 |
> |
register int x; |
| 80 |
|
/* open file */ |
| 81 |
|
if (file == NULL) { |
| 82 |
|
fp = stdin; |
| 99 |
|
/* clear output */ |
| 100 |
|
bzero(sc_frame_arr, sizeof(sc_frame_arr)); |
| 101 |
|
/* get frame */ |
| 102 |
< |
for (j = yres-1; j >= 0; j--) { |
| 102 |
> |
for (y = yres-1; y >= 0; y--) { |
| 103 |
|
if (freadcolrs(scanin, xres, fp) < 0) { |
| 104 |
|
fputs(file, stderr); |
| 105 |
|
fputs(": read error\n", stderr); |
| 106 |
|
exit(1); |
| 107 |
|
} |
| 108 |
< |
for (in = scanin[0], out = sc_frame_arr[ybeg+j]+xbeg; |
| 109 |
< |
in < scanin[xres]; in += 4, out++) { |
| 110 |
< |
k = in[EXP] - COLXS; |
| 111 |
< |
if (k >= 8) { |
| 112 |
< |
in[RED] = |
| 113 |
< |
in[GRN] = |
| 116 |
< |
in[BLU] = 255; |
| 117 |
< |
} else if (k <= -8) { |
| 118 |
< |
in[RED] = |
| 119 |
< |
in[GRN] = |
| 120 |
< |
in[BLU] = 0; |
| 121 |
< |
} else if (k > 0) { |
| 122 |
< |
c = in[RED] << k; |
| 123 |
< |
in[RED] = c > 255 ? 255 : c; |
| 124 |
< |
c = in[GRN] << k; |
| 125 |
< |
in[GRN] = c > 255 ? 255 : c; |
| 126 |
< |
c = in[BLU] << k; |
| 127 |
< |
in[BLU] = c > 255 ? 255 : c; |
| 128 |
< |
} else if (k < 0) { |
| 129 |
< |
in[RED] = in[RED] >> -k; |
| 130 |
< |
in[GRN] = in[GRN] >> -k; |
| 131 |
< |
in[BLU] = in[BLU] >> -k; |
| 132 |
< |
} |
| 133 |
< |
for (k = 0; k < 3; k++) |
| 134 |
< |
*out = *out<<5 | (gammamap[in[k]]+(random()&0x7))>>3; |
| 135 |
< |
} |
| 108 |
> |
normcolrs(scanin, xres); /* normalize */ |
| 109 |
> |
for (x = 0; x < xres; x++) /* convert */ |
| 110 |
> |
sc_frame_arr[y+ybeg][x+xbeg] = |
| 111 |
> |
((gammamap[scanin[x][RED]]+(random()&7))&0xf8)<<7 |
| 112 |
> |
| ((gammamap[scanin[x][GRN]]+(random()&7))&0xf8)<<2 |
| 113 |
> |
| (gammamap[scanin[x][BLU]]+(random()&7))>>3; |
| 114 |
|
} |
| 115 |
|
/* send frame */ |
| 116 |
|
scry_send_frame(); |
