102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
|
/*
|
||
|
|
* luts15bits.c - new 1 mars 2008 - ave St Exupery
|
||
|
|
*
|
||
|
|
* voir aussi "calcluts.c"
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#ifdef NEED_ALLOCA_H
|
||
|
|
#include <alloca.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "tthimage.h"
|
||
|
|
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
int Image_lut15_fill_0(int r[32768], int *g, int *b)
|
||
|
|
{
|
||
|
|
int foo;
|
||
|
|
|
||
|
|
for (foo=0; foo<32768; foo++)
|
||
|
|
{
|
||
|
|
r[foo] = foo;
|
||
|
|
g[foo] = 0;
|
||
|
|
b[foo] = 32768 - foo;
|
||
|
|
}
|
||
|
|
return FUNC_IS_ALPHA;
|
||
|
|
}
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
int Image_lut15_fill_1(int *r, int *g, int *b)
|
||
|
|
{
|
||
|
|
int foo;
|
||
|
|
|
||
|
|
for (foo=0; foo<32768; foo++)
|
||
|
|
{
|
||
|
|
r[foo] = foo;
|
||
|
|
g[foo] = 12345;
|
||
|
|
b[foo] = 32768 - foo;
|
||
|
|
}
|
||
|
|
return FUNC_IS_ALPHA;
|
||
|
|
}
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
int Image_lut15_essai(char *hfname, char *tganame, int ka)
|
||
|
|
{
|
||
|
|
Image_Desc *src, *dst;
|
||
|
|
int x, y, h;
|
||
|
|
int r, g, b;
|
||
|
|
int lr[32768];
|
||
|
|
int lg[32768];
|
||
|
|
int lb[32768];
|
||
|
|
|
||
|
|
#if DEBUG_LEVEL
|
||
|
|
fprintf(stderr, "'%s' : premier essai pour les LUTs en 15 bits\n", __func__);
|
||
|
|
fprintf(stderr, " image source : %s\n", hfname);
|
||
|
|
fprintf(stderr, " image resultat : %s\n", tganame);
|
||
|
|
fprintf(stderr, " dummy argument : %d\n", ka);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (ka) {
|
||
|
|
fprintf(stderr, "%s : ka (%d) not zero !\n", __func__, ka);
|
||
|
|
return WRONG_FLAG;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( NULL==(src=Image_TGA_alloc_load(hfname)) )
|
||
|
|
{
|
||
|
|
fprintf(stderr, "%s: err load %s, aborting\n", __func__, hfname);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
/* convert the source image to an valid height-field */
|
||
|
|
Image_hf15_rgb2hf(src, src, 0);
|
||
|
|
|
||
|
|
/* save a 16 bits pgm for visual check */
|
||
|
|
Image_hf15_save_PGM("aaaa-hf15-lut15.pgm", src, __FILE__);
|
||
|
|
|
||
|
|
if ( NULL==(dst=Image_clone(src, 0)) )
|
||
|
|
{
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
for (y=0; y<src->height; y++)
|
||
|
|
{
|
||
|
|
for (x=0; x<src->width; x++)
|
||
|
|
{
|
||
|
|
h = Image_hf15_height(src, x, y);
|
||
|
|
r = lr[h] / 256;
|
||
|
|
g = lg[h] / 255;
|
||
|
|
b = lb[h] / 255;
|
||
|
|
Image_plotRGB(dst, x, y, r, g, b);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Image_TGA_save(tganame, dst, 0);
|
||
|
|
|
||
|
|
return FULL_NUCKED;
|
||
|
|
}
|
||
|
|
/*::------------------------------------------------------------------::*/
|
||
|
|
|
||
|
|
|