Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
Jon Ashburn | e922f71 | 2015-11-03 13:41:23 -0700 | [diff] [blame] | 3 | * Copyright 2015 Valve Software |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | * |
Jon Ashburn | e922f71 | 2015-11-03 13:41:23 -0700 | [diff] [blame] | 24 | * Author: Mark Lobodzinski <mark@lunarg.com> |
| 25 | * Author: Courtney Goeltzenleuchter <courtney@LunarG.com> |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 26 | **************************************************************************/ |
| 27 | #pragma once |
| 28 | #include <stdbool.h> |
Courtney Goeltzenleuchter | d263550 | 2015-10-21 17:08:06 -0600 | [diff] [blame] | 29 | #ifndef WIN32 |
| 30 | #include <strings.h> /* for ffs() */ |
Courtney Goeltzenleuchter | 3698c62 | 2015-10-27 11:23:21 -0600 | [diff] [blame] | 31 | #else |
| 32 | #include <intrin.h> /* for __lzcnt() */ |
Courtney Goeltzenleuchter | d263550 | 2015-10-21 17:08:06 -0600 | [diff] [blame] | 33 | #endif |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 34 | |
| 35 | #ifdef __cplusplus |
| 36 | extern "C" { |
| 37 | #endif |
| 38 | |
| 39 | static inline bool vk_format_is_undef(VkFormat format) |
| 40 | { |
| 41 | return (format == VK_FORMAT_UNDEFINED); |
| 42 | } |
| 43 | |
Mark Lobodzinski | dc86b85 | 2015-10-23 14:20:31 -0600 | [diff] [blame] | 44 | bool vk_format_is_depth_or_stencil(VkFormat format); |
| 45 | bool vk_format_is_depth_and_stencil(VkFormat format); |
| 46 | bool vk_format_is_depth_only(VkFormat format); |
| 47 | bool vk_format_is_stencil_only(VkFormat format); |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 48 | |
| 49 | static inline bool vk_format_is_color(VkFormat format) |
| 50 | { |
Mark Lobodzinski | dc86b85 | 2015-10-23 14:20:31 -0600 | [diff] [blame] | 51 | return !(vk_format_is_undef(format) || vk_format_is_depth_or_stencil(format)); |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | bool vk_format_is_norm(VkFormat format); |
| 55 | bool vk_format_is_int(VkFormat format); |
Mark Lobodzinski | dc86b85 | 2015-10-23 14:20:31 -0600 | [diff] [blame] | 56 | bool vk_format_is_sint(VkFormat format); |
| 57 | bool vk_format_is_uint(VkFormat format); |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 58 | bool vk_format_is_float(VkFormat format); |
| 59 | bool vk_format_is_srgb(VkFormat format); |
| 60 | bool vk_format_is_compressed(VkFormat format); |
| 61 | size_t vk_format_get_size(VkFormat format); |
| 62 | |
Courtney Goeltzenleuchter | d263550 | 2015-10-21 17:08:06 -0600 | [diff] [blame] | 63 | static inline int u_ffs(int val) |
| 64 | { |
| 65 | #ifdef WIN32 |
| 66 | return __lzcnt(val) + 1; |
| 67 | #else |
| 68 | return ffs(val); |
| 69 | #endif |
| 70 | } |
Mark Lobodzinski | 6f2274e | 2015-09-22 09:33:21 -0600 | [diff] [blame] | 71 | |
| 72 | #ifdef __cplusplus |
| 73 | } |
| 74 | #endif |
| 75 | |
| 76 | |