You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.4 KiB
93 lines
2.4 KiB
/* |
|
* Copyright © 2012 Intel Corporation |
|
* |
|
* Permission is hereby granted, free of charge, to any person obtaining |
|
* a copy of this software and associated documentation files (the |
|
* "Software"), to deal in the Software without restriction, including |
|
* without limitation the rights to use, copy, modify, merge, publish, |
|
* distribute, sublicense, and/or sell copies of the Software, and to |
|
* permit persons to whom the Software is furnished to do so, subject to |
|
* the following conditions: |
|
* |
|
* The above copyright notice and this permission notice (including the |
|
* next paragraph) shall be included in all copies or substantial |
|
* portions of the Software. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|
* 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); |
|
}
|
|
|