| /************************************************************************** |
| * |
| * Copyright 2015 Valve Software |
| * All Rights Reserved. |
| * |
| * 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 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. |
| * |
| * Author: Mark Lobodzinski <mark@lunarg.com> |
| * Author: Courtney Goeltzenleuchter <courtney@LunarG.com> |
| **************************************************************************/ |
| #pragma once |
| #include <stdbool.h> |
| #ifndef WIN32 |
| #include <strings.h> /* for ffs() */ |
| #else |
| #include <intrin.h> /* for __lzcnt() */ |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| static inline bool vk_format_is_undef(VkFormat format) |
| { |
| return (format == VK_FORMAT_UNDEFINED); |
| } |
| |
| bool vk_format_is_depth_or_stencil(VkFormat format); |
| bool vk_format_is_depth_and_stencil(VkFormat format); |
| bool vk_format_is_depth_only(VkFormat format); |
| bool vk_format_is_stencil_only(VkFormat format); |
| |
| static inline bool vk_format_is_color(VkFormat format) |
| { |
| return !(vk_format_is_undef(format) || vk_format_is_depth_or_stencil(format)); |
| } |
| |
| bool vk_format_is_norm(VkFormat format); |
| bool vk_format_is_int(VkFormat format); |
| bool vk_format_is_sint(VkFormat format); |
| bool vk_format_is_uint(VkFormat format); |
| bool vk_format_is_float(VkFormat format); |
| bool vk_format_is_srgb(VkFormat format); |
| bool vk_format_is_compressed(VkFormat format); |
| size_t vk_format_get_size(VkFormat format); |
| |
| static inline int u_ffs(int val) |
| { |
| #ifdef WIN32 |
| return __lzcnt(val) + 1; |
| #else |
| return ffs(val); |
| #endif |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |