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#include <stdio.h> |
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#include <rasterfile.h> |
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#include "rasterfile.h" |
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#include "color.h" |
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/* put header */ |
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printargs(argc, argv, stdout); |
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putchar('\n'); |
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printf("-Y %d +X %d\n", ymax, xmax); |
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fputresolu(YMAJOR|YDECR, xmax, ymax, stdout); |
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/* convert file */ |
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pr2ra(&head); |
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} else { |
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return(NULL); |
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/* discard header */ |
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getheader(p->fp, NULL); |
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if (fscanf(p->fp, "-Y %d +X %d\n", &ymax, &xmax) != 2) |
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if (fgetresolu(&xmax, &ymax, p->fp) != (YMAJOR|YDECR)) |
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quiterr("bad picture size"); |
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p->nexty = 0; |
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p->bytes_line = 0; /* variable length lines */ |
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int y; |
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register rgbpixel *l3; |
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{ |
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register BYTE *l4; |
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register int shift, c; |
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int i; |
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register int i; |
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if (inpic->nexty != y) { /* find scanline */ |
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if (inpic->nexty != y) { /* find scanline */ |
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if (inpic->bytes_line == 0) { |
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if (inpic->pos.y[y] == 0) { |
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while (inpic->nexty < y) { |
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quiterr("read error in picreadline3"); |
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inpic->nexty = y+1; |
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/* convert scanline */ |
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for (l4=inline[0], i=xmax; i--; l4+=4, l3++) { |
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shift = l4[EXP] - COLXS; |
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if (shift >= 8) { |
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l3->r = l3->g = l3->b = 255; |
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} else if (shift <= -8) { |
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l3->r = l3->g = l3->b = 0; |
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} else if (shift > 0) { |
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c = l4[RED] << shift; |
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l3->r = c > 255 ? 255 : c; |
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c = l4[GRN] << shift; |
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l3->g = c > 255 ? 255 : c; |
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c = l4[BLU] << shift; |
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l3->b = c > 255 ? 255 : c; |
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} else if (shift < 0) { |
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l3->r = l4[RED] >> -shift; |
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l3->g = l4[GRN] >> -shift; |
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l3->b = l4[BLU] >> -shift; |
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} else { |
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l3->r = l4[RED]; |
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l3->g = l4[GRN]; |
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l3->b = l4[BLU]; |
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} |
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normcolrs(inline, xmax); |
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for (i = 0; i < xmax; i++) { |
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l3[i].r = inline[i][RED]; |
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l3[i].g = inline[i][GRN]; |
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l3[i].b = inline[i][BLU]; |
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} |
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} |
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