Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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355 lines
7.7 KiB
355 lines
7.7 KiB
/* |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <pam.h> |
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#include "../floatimg.h" |
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int verbosity; |
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float global_fvalue; |
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/* --------------------------------------------------------------------- */ |
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int essai_rotate(char *infile) |
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{ |
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FloatImg src, dst; |
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int foo; |
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if (NULL != infile) { |
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fprintf(stderr, "%s: loading %s\n", __func__, infile); |
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foo = fimg_create_from_dump(infile, &src); |
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if (foo) { |
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile); |
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return foo; |
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} |
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} |
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else { |
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fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__); |
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abort(); |
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} |
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fimg_save_as_png(&src, "test.png", 0); |
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foo = fimg_rotate_90(&src, &dst, 0); |
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fprintf(stderr, "rotate 90 -> %d\n", foo); |
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foo = fimg_save_as_png(&dst, "rotated90.png", 0); |
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foo = fimg_save_as_pnm(&dst, "rotated90.pnm", 0); |
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fimg_destroy(&src); |
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return -1; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_filtrage_3x3(char *infile) |
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{ |
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FloatImg src, dst; |
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int foo; /// , idx; |
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// char buffer[100]; |
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FimgFilter3x3 filter_a = { |
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{ 1.0, 1.0, 1.0, |
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1.0, -3.0, 1.0, |
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1.0, 1.0, 1.0 }, |
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8.0, 0.0 |
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}; |
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FimgFilter3x3 filter_b = { |
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{ -2.0, -1.0, 0.0, |
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-1.0, 3.0, 1.0, |
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0.0, 1.0, 2.0 }, |
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8.0, 0.0 |
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}; |
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if (NULL != infile) { |
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fprintf(stderr, "%s: loading %s\n", __func__, infile); |
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foo = fimg_create_from_dump(infile, &src); |
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if (foo) { |
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile); |
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return foo; |
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} |
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} |
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else { |
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fprintf(stderr, "%s is creating the picz\n", __func__); |
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fimg_create(&src, 640, 480, FIMG_TYPE_RGB); |
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fimg_test_pattern(&src, 0, 255.0); |
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} |
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fimg_save_as_png(&src, "test.png", 0); |
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foo = fimg_clone(&src, &dst, 0); |
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if (foo) { |
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fprintf(stderr, "%s: err clone %p\n", __func__, &src); |
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return -44; |
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} |
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fimg_filter_3x3(&src, &dst, &filter_a); |
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foo = fimg_clamp_negativ(&dst); |
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if (foo) { |
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fprintf(stderr, "clamped %d negative pixels\n", foo); |
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} |
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foo = fimg_save_as_png(&dst, "f3x3a.png", 0); |
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// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0); |
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fimg_filter_3x3(&src, &dst, &filter_b); |
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foo = fimg_clamp_negativ(&dst); |
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if (foo) { |
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fprintf(stderr, "clamped %d negative pixels\n", foo); |
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} |
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foo = fimg_save_as_png(&dst, "f3x3b.png", 0); |
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// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0); |
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fimg_destroy(&src); fimg_destroy(&dst); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_filtrage_2x2(char *infile) |
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{ |
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FloatImg fimg; |
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int foo, idx; |
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char buffer[100]; |
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if (NULL != infile) { |
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fprintf(stderr, "%s: loading %s\n", __func__, infile); |
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foo = fimg_create_from_dump(infile, &fimg); |
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if (foo) { |
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile); |
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return foo; |
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} |
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} |
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else { |
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fprintf(stderr, "%s is creating the picz\n", __func__); |
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB); |
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fimg_draw_something(&fimg); |
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} |
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foo = fimg_save_as_pnm(&fimg, "source.pnm", 0); |
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/* |
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* running multiple filters so you can |
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* watch the up-left shift :) |
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*/ |
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for (idx=0; idx<5; idx++) { |
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foo = fimg_lissage_2x2(&fimg); |
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sprintf(buffer, "filter%03d.png", idx); |
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foo = fimg_save_as_png(&fimg, buffer, 0); |
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if (verbosity) { |
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fprintf(stderr, "%s %d\n", buffer, foo); |
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} |
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} |
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fimg_destroy(&fimg); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_geometrie(char *infile) |
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{ |
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FloatImg fimg, result; |
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int foo; |
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if (NULL != infile) { |
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fprintf(stderr, "loading %s\n", infile); |
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foo = fimg_create_from_dump(infile, &fimg); |
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if (foo) { |
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile); |
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return foo; |
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} |
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} |
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else { |
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB); |
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fimg_draw_something(&fimg); |
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} |
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foo = fimg_save_as_pnm(&fimg, "source.pnm", 0); |
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memset(&result, 0, sizeof(FloatImg)); |
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foo = fimg_halfsize_0(&fimg, &result, 0); |
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fprintf(stderr, "retour halfsize -> %d\n", foo); |
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if (foo) { |
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return -2; |
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} |
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if (verbosity) fimg_describe(&result, "result after halfsize"); |
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foo = fimg_save_as_pnm(&result, "something.pnm", 0); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_sfx0(char *infile) |
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{ |
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FloatImg fimg; |
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int foo; |
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if (NULL != infile) { |
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fprintf(stderr, "loading %s\n", infile); |
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foo = fimg_create_from_dump(infile, &fimg); |
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if (foo) { |
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile); |
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return foo; |
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} |
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} |
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else { |
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB); |
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fimg_draw_something(&fimg); |
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} |
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foo = fimg_save_as_pnm(&fimg, "something.pnm", 0); |
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if (foo) { |
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fprintf(stderr, "%s: err save %d\n", __func__, foo); |
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return -6; |
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} |
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foo = fimg_killcolors_a(&fimg, 0.0); |
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foo = fimg_save_as_pnm(&fimg, "colorskilled-a.pnm", 0); |
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if (foo) { |
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fprintf(stderr, "%s: err save %d\n", __func__, foo); |
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return -6; |
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} |
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foo = fimg_killcolors_b(&fimg, 0.0); |
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foo = fimg_save_as_pnm(&fimg, "colorskilled-b.pnm", 0); |
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if (foo) { |
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fprintf(stderr, "%s: err save %d\n", __func__, foo); |
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return -6; |
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} |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_parse_double(void) |
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{ |
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int foo; |
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double dval; |
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char *str; |
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str = "12.34"; dval = 0.0; |
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foo = parse_double(str, &dval); |
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printf("%-10s -> %3d %g\n", str, foo, dval); |
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str = "12e4"; dval = 0.0; |
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foo = parse_double(str, &dval); |
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printf("%-10s -> %3d %g\n", str, foo, dval); |
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str = "5s"; dval = 0.0; |
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foo = parse_double(str, &dval); |
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printf("%-10s -> %3d %g\n", str, foo, dval); |
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str = "PORN"; dval = 0.0; |
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foo = parse_double(str, &dval); |
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printf("%-10s -> %3d %g\n", str, foo, dval); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_detect_type(void) |
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{ |
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int foo; |
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char *fname; |
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foo = format_from_extension(fname="foo.fimg"); |
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printf("%-10s %d\n\n", fname, foo); |
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foo = format_from_extension(fname="foo.pnm"); |
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printf("%-10s %d\n\n", fname, foo); |
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foo = format_from_extension(fname="foo.png"); |
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printf("%-10s %d\n\n", fname, foo); |
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foo = format_from_extension(fname="foo.xyzzy"); |
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printf("%-10s %d\n\n", fname, foo); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_rampes(void) |
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{ |
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FloatImg fimg; |
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int foo; |
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fimg_create(&fimg, 640, 480, FIMG_TYPE_RGB); |
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foo = fimg_hdeg_a(&fimg, (double)3.141592654); |
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fprintf(stderr, "make h deg -> %d\n", foo); |
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foo = fimg_save_as_pnm(&fimg, "hdeg.pnm", 0); |
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fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo); |
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foo = fimg_vdeg_a(&fimg, (double)3.141592654); |
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fprintf(stderr, "make h deg -> %d\n", foo); |
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foo = fimg_save_as_pnm(&fimg, "vdeg.pnm", 0); |
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fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int essai_ecrire_png(char *fname) |
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{ |
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FloatImg fimg; |
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int foo; |
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB); |
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fimg_draw_something(&fimg); |
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/* XXX |
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for (foo=0; foo<512; foo++) { |
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fimg_plot_rgb(&fimg, foo, foo, 17000.0, 8000.0, 11111.1); |
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} |
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*/ |
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foo = fimg_save_as_pnm(&fimg, "quux.pnm", 0); |
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fprintf(stderr, "save as pnm -> %d\n", foo); |
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foo = fimg_save_as_png(&fimg, fname, 0); |
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fprintf(stderr, "save as png -> %d\n", foo); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */ |
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int main(int argc, char *argv[]) |
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{ |
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int foo, opt; |
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char *filename; |
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puts("++++++++++++++++++++++++++++++++"); |
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global_fvalue = 1.0; |
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while ((opt = getopt(argc, argv, "hk:v")) != -1) { |
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switch(opt) { |
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// case 'h': help(0); break; |
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case 'k': global_fvalue = atof(optarg); break; |
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case 'v': verbosity++; break; |
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} |
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} |
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fprintf(stderr, "argc %d optind %d\n", argc, optind); |
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filename = NULL; |
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if (1 == argc-optind) filename = argv[optind]; |
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/* |
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foo = essai_filtrage_2x2(filename); |
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if (foo) { |
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fprintf(stderr, "Filtre 2x2 ====> %d\n", foo); |
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} |
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*/ |
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foo = essai_rotate(filename); |
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if (foo) { |
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fprintf(stderr, "Essai ====> %d\n", foo); |
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} |
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fprintf(stderr, "++++++++++++++ end of pid %d\n", getpid()); |
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return 0; |
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} |
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/* --------------------------------------------------------------------- */
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