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/*
* Copyright © 2012 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "wayland-private.h"
#include "test-runner.h"
TEST(fixed_double_conversions)
{
wl_fixed_t f;
double d;
d = 62.125;
f = wl_fixed_from_double(d);
fprintf(stderr, "double %lf to fixed %x\n", d, f);
assert(f == 0x3e20);
d = -1200.625;
f = wl_fixed_from_double(d);
fprintf(stderr, "double %lf to fixed %x\n", d, f);
assert(f == -0x4b0a0);
f = random();
d = wl_fixed_to_double(f);
fprintf(stderr, "fixed %x to double %lf\n", f, d);
assert(d == f / 256.0);
f = 0x012030;
d = wl_fixed_to_double(f);
fprintf(stderr, "fixed %x to double %lf\n", f, d);
assert(d == 288.1875);
f = 0x70000000;
d = wl_fixed_to_double(f);
fprintf(stderr, "fixed %x to double %lf\n", f, d);
assert(d == f / 256);
f = -0x012030;
d = wl_fixed_to_double(f);
fprintf(stderr, "fixed %x to double %lf\n", f, d);
assert(d == -288.1875);
f = 0x80000000;
d = wl_fixed_to_double(f);
fprintf(stderr, "fixed %x to double %lf\n", f, d);
assert(d == f / 256);
}
TEST(fixed_int_conversions)
{
wl_fixed_t f;
int i;
i = 62;
f = wl_fixed_from_int(i);
assert(f == 62 * 256);
i = -2080;
f = wl_fixed_from_int(i);
assert(f == -2080 * 256);
f = 0x277013;
i = wl_fixed_to_int(f);
assert(i == 0x2770);
f = -0x5044;
i = wl_fixed_to_int(f);
assert(i == -0x50);
}
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