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/*
* $Id$
* Copyright (C) 2007 Oliver McFadden <omcfadde@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <GL/gl.h>
#include <GL/glext.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <revenge_test.h>
typedef struct
{
unsigned int id;
char *name;
} data_store;
#define N_(name) name, # name
void
gl_alpha_test (void)
{
data_store alpha_test[] = {
{N_(GL_NEVER)},
{N_(GL_LESS)},
{N_(GL_EQUAL)},
{N_(GL_LEQUAL)},
{N_(GL_GREATER)},
{N_(GL_NOTEQUAL)},
{N_(GL_GEQUAL)},
{N_(GL_ALWAYS)},
};
char buf[BUFSIZ];
float j;
int i;
for (i = 0; i < sizeof (alpha_test) / sizeof (alpha_test[0]); i++)
{
for (j = 0.0; j <= 1.0; j += 0.5)
{
snprintf (buf, BUFSIZ, "%s_%f", alpha_test[i].name, j);
test_prologue (buf);
glEnable (GL_ALPHA_TEST);
glAlphaFunc (alpha_test[i].id, j);
tri ();
test_epilogue (true);
}
}
glAlphaFunc (GL_ALWAYS, 0.0);
glDisable (GL_ALPHA_TEST);
}
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