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      1 /* Copyright (c) 2015-2017 The Khronos Group Inc.
      2  * Copyright (c) 2015-2017 Valve Corporation
      3  * Copyright (c) 2015-2017 LunarG, Inc.
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *     http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  *
     17  * Author: Mark Lobodzinski <mark (at) lunarg.com>
     18  * Author: Courtney Goeltzenleuchter <courtney (at) LunarG.com>
     19  * Author: Dave Houlton <daveh (at) lunarg.com>
     20  */
     21 
     22 #pragma once
     23 #include <stdbool.h>
     24 #include <vector>
     25 #include "vulkan/vulkan.h"
     26 
     27 #if !defined(VK_LAYER_EXPORT)
     28 #if defined(__GNUC__) && __GNUC__ >= 4
     29 #define VK_LAYER_EXPORT __attribute__((visibility("default")))
     30 #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)
     31 #define VK_LAYER_EXPORT __attribute__((visibility("default")))
     32 #else
     33 #define VK_LAYER_EXPORT
     34 #endif
     35 #endif
     36 
     37 #ifdef __cplusplus
     38 extern "C" {
     39 #endif
     40 
     41 typedef enum VkFormatCompatibilityClass {
     42     VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT = 0,
     43     VK_FORMAT_COMPATIBILITY_CLASS_8_BIT = 1,
     44     VK_FORMAT_COMPATIBILITY_CLASS_16_BIT = 2,
     45     VK_FORMAT_COMPATIBILITY_CLASS_24_BIT = 3,
     46     VK_FORMAT_COMPATIBILITY_CLASS_32_BIT = 4,
     47     VK_FORMAT_COMPATIBILITY_CLASS_48_BIT = 5,
     48     VK_FORMAT_COMPATIBILITY_CLASS_64_BIT = 6,
     49     VK_FORMAT_COMPATIBILITY_CLASS_96_BIT = 7,
     50     VK_FORMAT_COMPATIBILITY_CLASS_128_BIT = 8,
     51     VK_FORMAT_COMPATIBILITY_CLASS_192_BIT = 9,
     52     VK_FORMAT_COMPATIBILITY_CLASS_256_BIT = 10,
     53     VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGB_BIT = 11,
     54     VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGBA_BIT = 12,
     55     VK_FORMAT_COMPATIBILITY_CLASS_BC2_BIT = 13,
     56     VK_FORMAT_COMPATIBILITY_CLASS_BC3_BIT = 14,
     57     VK_FORMAT_COMPATIBILITY_CLASS_BC4_BIT = 15,
     58     VK_FORMAT_COMPATIBILITY_CLASS_BC5_BIT = 16,
     59     VK_FORMAT_COMPATIBILITY_CLASS_BC6H_BIT = 17,
     60     VK_FORMAT_COMPATIBILITY_CLASS_BC7_BIT = 18,
     61     VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGB_BIT = 19,
     62     VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGBA_BIT = 20,
     63     VK_FORMAT_COMPATIBILITY_CLASS_ETC2_EAC_RGBA_BIT = 21,
     64     VK_FORMAT_COMPATIBILITY_CLASS_EAC_R_BIT = 22,
     65     VK_FORMAT_COMPATIBILITY_CLASS_EAC_RG_BIT = 23,
     66     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_4X4_BIT = 24,
     67     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X4_BIT = 25,
     68     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X5_BIT = 26,
     69     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X5_BIT = 27,
     70     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X6_BIT = 28,
     71     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X5_BIT = 29,
     72     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X6_BIT = 20,
     73     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X8_BIT = 31,
     74     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X5_BIT = 32,
     75     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X6_BIT = 33,
     76     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X8_BIT = 34,
     77     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X10_BIT = 35,
     78     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT = 36,
     79     VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X12_BIT = 37,
     80     VK_FORMAT_COMPATIBILITY_CLASS_D16_BIT = 38,
     81     VK_FORMAT_COMPATIBILITY_CLASS_D24_BIT = 39,
     82     VK_FORMAT_COMPATIBILITY_CLASS_D32_BIT = 30,
     83     VK_FORMAT_COMPATIBILITY_CLASS_S8_BIT = 41,
     84     VK_FORMAT_COMPATIBILITY_CLASS_D16S8_BIT = 42,
     85     VK_FORMAT_COMPATIBILITY_CLASS_D24S8_BIT = 43,
     86     VK_FORMAT_COMPATIBILITY_CLASS_D32S8_BIT = 44,
     87     VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_2BPP_BIT = 45,
     88     VK_FORMAT_COMPATIBILITY_CLASS_PVRTC1_4BPP_BIT = 46,
     89     VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_2BPP_BIT = 47,
     90     VK_FORMAT_COMPATIBILITY_CLASS_PVRTC2_4BPP_BIT = 48,
     91     VK_FORMAT_COMPATIBILITY_CLASS_MAX_ENUM = 49
     92 } VkFormatCompatibilityClass;
     93 
     94 VK_LAYER_EXPORT bool FormatIsDepthOrStencil(VkFormat format);
     95 VK_LAYER_EXPORT bool FormatIsDepthAndStencil(VkFormat format);
     96 VK_LAYER_EXPORT bool FormatIsDepthOnly(VkFormat format);
     97 VK_LAYER_EXPORT bool FormatIsStencilOnly(VkFormat format);
     98 VK_LAYER_EXPORT bool FormatIsCompressed_ETC2_EAC(VkFormat format);
     99 VK_LAYER_EXPORT bool FormatIsCompressed_ASTC_LDR(VkFormat format);
    100 VK_LAYER_EXPORT bool FormatIsCompressed_BC(VkFormat format);
    101 VK_LAYER_EXPORT bool FormatIsCompressed_PVRTC(VkFormat format);
    102 VK_LAYER_EXPORT bool FormatIsNorm(VkFormat format);
    103 VK_LAYER_EXPORT bool FormatIsUNorm(VkFormat format);
    104 VK_LAYER_EXPORT bool FormatIsSNorm(VkFormat format);
    105 VK_LAYER_EXPORT bool FormatIsInt(VkFormat format);
    106 VK_LAYER_EXPORT bool FormatIsSInt(VkFormat format);
    107 VK_LAYER_EXPORT bool FormatIsUInt(VkFormat format);
    108 VK_LAYER_EXPORT bool FormatIsFloat(VkFormat format);
    109 VK_LAYER_EXPORT bool FormatIsSRGB(VkFormat format);
    110 VK_LAYER_EXPORT bool FormatIsUScaled(VkFormat format);
    111 VK_LAYER_EXPORT bool FormatIsSScaled(VkFormat format);
    112 VK_LAYER_EXPORT bool FormatIsCompressed(VkFormat format);
    113 
    114 VK_LAYER_EXPORT uint32_t FormatPlaneCount(VkFormat format);
    115 VK_LAYER_EXPORT uint32_t FormatChannelCount(VkFormat format);
    116 VK_LAYER_EXPORT VkExtent3D FormatCompressedTexelBlockExtent(VkFormat format);
    117 VK_LAYER_EXPORT size_t FormatSize(VkFormat format);
    118 VK_LAYER_EXPORT VkFormatCompatibilityClass FormatCompatibilityClass(VkFormat format);
    119 VK_LAYER_EXPORT VkDeviceSize SafeModulo(VkDeviceSize dividend, VkDeviceSize divisor);
    120 
    121 static inline bool FormatIsUndef(VkFormat format) { return (format == VK_FORMAT_UNDEFINED); }
    122 static inline bool FormatIsColor(VkFormat format) { return !(FormatIsUndef(format) || FormatIsDepthOrStencil(format)); }
    123 static inline bool FormatHasDepth(VkFormat format) { return (FormatIsDepthOnly(format) || FormatIsDepthAndStencil(format)); }
    124 static inline bool FormatHasStencil(VkFormat format) { return (FormatIsStencilOnly(format) || FormatIsDepthAndStencil(format)); }
    125 static inline bool FormatIsMultiplane(VkFormat format) { return ((FormatPlaneCount(format)) > 1u); }
    126 
    127 #ifdef __cplusplus
    128 }
    129 #endif
    130