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      1 /*
      2  * Copyright  2016 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  */
     23 
     24 #ifndef VK_FORMAT_INFO_H
     25 #define VK_FORMAT_INFO_H
     26 
     27 #include <stdbool.h>
     28 #include <vulkan/vulkan.h>
     29 
     30 static inline VkImageAspectFlags
     31 vk_format_aspects(VkFormat format)
     32 {
     33    switch (format) {
     34    case VK_FORMAT_UNDEFINED:
     35       return 0;
     36 
     37    case VK_FORMAT_S8_UINT:
     38       return VK_IMAGE_ASPECT_STENCIL_BIT;
     39 
     40    case VK_FORMAT_D16_UNORM_S8_UINT:
     41    case VK_FORMAT_D24_UNORM_S8_UINT:
     42    case VK_FORMAT_D32_SFLOAT_S8_UINT:
     43       return VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
     44 
     45    case VK_FORMAT_D16_UNORM:
     46    case VK_FORMAT_X8_D24_UNORM_PACK32:
     47    case VK_FORMAT_D32_SFLOAT:
     48       return VK_IMAGE_ASPECT_DEPTH_BIT;
     49 
     50    default:
     51       return VK_IMAGE_ASPECT_COLOR_BIT;
     52    }
     53 }
     54 
     55 static inline bool
     56 vk_format_is_color(VkFormat format)
     57 {
     58    return vk_format_aspects(format) == VK_IMAGE_ASPECT_COLOR_BIT;
     59 }
     60 
     61 static inline bool
     62 vk_format_is_depth_or_stencil(VkFormat format)
     63 {
     64    const VkImageAspectFlags aspects = vk_format_aspects(format);
     65    return aspects & (VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT);
     66 }
     67 
     68 static inline bool
     69 vk_format_has_depth(VkFormat format)
     70 {
     71    const VkImageAspectFlags aspects = vk_format_aspects(format);
     72    return aspects & VK_IMAGE_ASPECT_DEPTH_BIT;
     73 }
     74 
     75 #endif /* VK_FORMAT_INFO_H */
     76