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/*************************************************************************
* Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of The Dimension Test Suite. *
* *
* Dimension is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* Dimension is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include "../libdimension/dimension.h"
#include "../libdimension-png/dimension-png.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
int main() {
dmnsn_canvas *canvas;
dmnsn_color color;
dmnsn_CIE_xyY xyY;
dmnsn_CIE_Lab Lab;
dmnsn_CIE_Luv Luv;
dmnsn_sRGB sRGB;
FILE *ofile, *ifile;
unsigned int i, j;
const unsigned int x = 333, y = 300;
dmnsn_set_resilience(DMNSN_SEVERITY_LOW);
canvas = dmnsn_new_canvas(3*x, y);
if (!canvas) {
fprintf(stderr, "--- Allocation of canvas failed! ---\n");
return EXIT_FAILURE;
}
ofile = fopen("dimension1.png", "wb");
if (!ofile) {
fprintf(stderr, "--- Opening 'dimension1.png' for writing failed! ---\n");
return EXIT_FAILURE;
}
for (i = 0; i < x; ++i) {
for (j = 0; j < y; ++j) {
/*
* CIE xyY colorspace
*/
xyY.Y = 0.5;
xyY.x = ((double)i)/(x - 1);
xyY.y = ((double)j)/(y - 1);
color = dmnsn_color_from_xyY(xyY);
sRGB = dmnsn_sRGB_from_color(color);
if (sRGB.R > 1.0 || sRGB.G > 1.0 || sRGB.B > 1.0
|| sRGB.R < 0.0 || sRGB.G < 0.0 || sRGB.B < 0.0) {
/* Out of sRGB gamut */
color.trans = 0.5;
}
dmnsn_set_pixel(canvas, i, j, color);
/*
* CIE Lab colorspace
*/
Lab.L = 75.0;
Lab.a = 200.0*(((double)i)/(x - 1) - 0.5);
Lab.b = 200.0*(((double)j)/(y - 1) - 0.5);
color = dmnsn_color_from_Lab(Lab, dmnsn_whitepoint);
sRGB = dmnsn_sRGB_from_color(color);
if (sRGB.R > 1.0 || sRGB.G > 1.0 || sRGB.B > 1.0
|| sRGB.R < 0.0 || sRGB.G < 0.0 || sRGB.B < 0.0) {
/* Out of sRGB gamut */
color.trans = 0.5;
}
dmnsn_set_pixel(canvas, i + x, j, color);
/*
* CIE Luv colorspace
*/
Luv.L = 75.0;
Luv.u = 200.0*(((double)i)/(x - 1) - 0.5);
Luv.v = 200.0*(((double)j)/(y - 1) - 0.5);
color = dmnsn_color_from_Luv(Luv, dmnsn_whitepoint);
sRGB = dmnsn_sRGB_from_color(color);
if (sRGB.R > 1.0 || sRGB.G > 1.0 || sRGB.B > 1.0
|| sRGB.R < 0.0 || sRGB.G < 0.0 || sRGB.B < 0.0) {
/* Out of sRGB gamut */
color.trans = 0.5;
}
dmnsn_set_pixel(canvas, i + 2*x, j, color);
}
}
if (dmnsn_png_write_canvas(canvas, ofile)) {
fprintf(stderr, "--- Writing canvas failed! ---\n");
return EXIT_FAILURE;
}
dmnsn_delete_canvas(canvas);
fclose(ofile);
ifile = fopen("dimension1.png", "rb");
if (!ifile) {
fprintf(stderr, "--- Opening 'dimension1.png' for reading failed! ---\n");
return EXIT_FAILURE;
}
if (!(canvas = dmnsn_png_read_canvas(ifile))) {
fprintf(stderr, "--- Reading canvas failed! ---\n");
return EXIT_FAILURE;
}
fclose(ifile);
ofile = fopen("dimension2.png", "wb");
if (!ofile) {
fprintf(stderr, "--- Opening 'dimension2.png' for writing failed! ---\n");
return EXIT_FAILURE;
}
if (dmnsn_png_write_canvas(canvas, ofile)) {
fprintf(stderr, "--- Writing canvas failed! ---\n");
return EXIT_FAILURE;
}
dmnsn_delete_canvas(canvas);
return EXIT_SUCCESS;
}
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