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773babedfc
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include "wayland-private.h"
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#include "test-runner.h"
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TEST(fixed_double_conversions)
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{
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wl_fixed_t f;
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double d;
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d = 62.125;
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f = wl_fixed_from_double(d);
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fprintf(stderr, "double %lf to fixed %x\n", d, f);
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assert(f == 0x3e20);
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d = -1200.625;
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f = wl_fixed_from_double(d);
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fprintf(stderr, "double %lf to fixed %x\n", d, f);
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assert(f == -0x4b0a0);
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f = random();
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d = wl_fixed_to_double(f);
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fprintf(stderr, "fixed %x to double %lf\n", f, d);
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assert(d == f / 256.0);
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f = 0x012030;
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d = wl_fixed_to_double(f);
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fprintf(stderr, "fixed %x to double %lf\n", f, d);
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assert(d == 288.1875);
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f = 0x70000000;
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d = wl_fixed_to_double(f);
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fprintf(stderr, "fixed %x to double %lf\n", f, d);
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assert(d == f / 256);
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f = -0x012030;
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d = wl_fixed_to_double(f);
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fprintf(stderr, "fixed %x to double %lf\n", f, d);
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assert(d == -288.1875);
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f = 0x80000000;
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d = wl_fixed_to_double(f);
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fprintf(stderr, "fixed %x to double %lf\n", f, d);
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assert(d == f / 256);
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}
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TEST(fixed_int_conversions)
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{
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wl_fixed_t f;
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int i;
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i = 62;
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f = wl_fixed_from_int(i);
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assert(f == 62 * 256);
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i = -2080;
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f = wl_fixed_from_int(i);
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assert(f == -2080 * 256);
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f = 0x277013;
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i = wl_fixed_to_int(f);
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assert(i == 0x2770);
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f = -0x5044;
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i = wl_fixed_to_int(f);
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assert(i == -0x50);
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}
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