| /* |
| * 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); |
| } |