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#include "pic.h" |
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+ |
#include "random.h" |
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|
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#define controlshift(e) (((XButtonEvent *)(e))->detail & (ShiftMask|ControlMask)) |
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#define FONTNAME "9x15" /* text font we'll use */ |
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#define BORWIDTH 5 /* border width */ |
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#define BARHEIGHT 25 /* menu bar size */ |
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double gamcor = 2.0; /* gamma correction */ |
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double gamcor = 2.2; /* gamma correction */ |
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XRASTER *ourras = NULL; /* our stored raster image */ |
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|
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if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
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quiterr("bad picture size"); |
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/* set view parameters */ |
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if (gotview) |
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if (gotview) { |
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ourview.hresolu = xmax; |
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ourview.vresolu = ymax; |
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if (setview(&ourview) != NULL) |
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gotview = 0; |
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< |
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} |
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if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
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quiterr("out of memory"); |
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|
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{ |
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char buf[80]; |
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COLOR cval; |
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Color cvx; |
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char *cp; |
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int n; |
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double comp; |
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return(0); |
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switch (*cp) { /* interpret command */ |
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case 'q': |
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< |
case CTRL(D): /* quiterr */ |
376 |
> |
case CTRL(D): /* quit */ |
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quit(0); |
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case '\n': |
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case '\r': |
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XText(wind, box.xmin, box.ymin, buf, strlen(buf), |
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fontid, BlackPixel, WhitePixel); |
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return(0); |
403 |
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case 'i': /* identify (contour) */ |
404 |
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if (ourras->ncolors == 0) |
405 |
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return(-1); |
406 |
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n = ourras->data.bz[ekey->x-xoff+BZPixmapSize(xmax,ekey->y-yoff)]; |
407 |
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n = ourras->pmap[n]; |
408 |
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cvx.pixel = ourras->cdefs[n].pixel; |
409 |
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cvx.red = random() & 65535; |
410 |
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cvx.green = random() & 65535; |
411 |
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cvx.blue = random() & 65535; |
412 |
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XStoreColor(&cvx); |
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return(0); |
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case 'p': /* position */ |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
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XText(wind, ekey->x, ekey->y, buf, strlen(buf), |
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case CTRL(R): /* redraw */ |
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case CTRL(L): |
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XClear(wind); |
448 |
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XStoreColors(ourras->ncolors, ourras->cdefs); |
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return(redraw(0, 0, width, height)); |
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case ' ': /* clear */ |
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return(redraw(box.xmin, box.ymin, box.xsiz, box.ysiz)); |
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int y; |
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register rgbpixel *l3; |
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{ |
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< |
register BYTE *l4; |
667 |
< |
register int shift, c; |
651 |
< |
int i; |
652 |
< |
|
666 |
> |
register int i; |
667 |
> |
/* read scanline */ |
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if (getscan(y) < 0) |
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quiterr("cannot seek for picreadline"); |
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/* convert scanline */ |
671 |
< |
for (l4=scanline[0], i=xmax; i--; l4+=4, l3++) { |
672 |
< |
shift = l4[EXP] - COLXS + scale; |
673 |
< |
if (shift >= 8) { |
674 |
< |
l3->r = l3->g = l3->b = 255; |
675 |
< |
} else if (shift <= -8) { |
676 |
< |
l3->r = l3->g = l3->b = 0; |
677 |
< |
} else if (shift > 0) { |
678 |
< |
c = l4[RED] << shift; |
679 |
< |
l3->r = c > 255 ? 255 : c; |
665 |
< |
c = l4[GRN] << shift; |
666 |
< |
l3->g = c > 255 ? 255 : c; |
667 |
< |
c = l4[BLU] << shift; |
668 |
< |
l3->b = c > 255 ? 255 : c; |
669 |
< |
} else if (shift < 0) { |
670 |
< |
l3->r = l4[RED] >> -shift; |
671 |
< |
l3->g = l4[GRN] >> -shift; |
672 |
< |
l3->b = l4[BLU] >> -shift; |
673 |
< |
} else { |
674 |
< |
l3->r = l4[RED]; |
675 |
< |
l3->g = l4[GRN]; |
676 |
< |
l3->b = l4[BLU]; |
677 |
< |
} |
671 |
> |
if (scale != 0) |
672 |
> |
for (i = 0; i < xmax; i++) |
673 |
> |
if (scanline[i][EXP]+scale >= 0) |
674 |
> |
scanline[i][EXP] += scale; |
675 |
> |
normcolrs(scanline, xmax); |
676 |
> |
for (i = 0; i < xmax; i++) { |
677 |
> |
l3[i].r = scanline[i][RED]; |
678 |
> |
l3[i].g = scanline[i][GRN]; |
679 |
> |
l3[i].b = scanline[i][BLU]; |
680 |
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} |
681 |
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} |
682 |
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