1/* -*- tab-width: 4; -*- */ 
2/* vi: set sw=2 ts=4 expandtab: */ 
3 
4/* 
5 * Copyright 2019-2020 The Khronos Group Inc. 
6 * SPDX-License-Identifier: Apache-2.0 
7 */ 
8 
9/** 
10 * @internal 
11 * @file 
12 * @~English 
13 * 
14 * @brief Struct for returning size information about an image format. 
15 * 
16 * @author Mark Callow, www.edgewise-consulting.com 
17 */ 
18 
19#ifndef _FORMATSIZE_H_ 
20#define _FORMATSIZE_H_ 
21 
22#include "ktx.h" 
23 
24typedef enum ktxFormatSizeFlagBits { 
25 KTX_FORMAT_SIZE_PACKED_BIT = 0x00000001, 
26 KTX_FORMAT_SIZE_COMPRESSED_BIT = 0x00000002, 
27 KTX_FORMAT_SIZE_PALETTIZED_BIT = 0x00000004, 
28 KTX_FORMAT_SIZE_DEPTH_BIT = 0x00000008, 
29 KTX_FORMAT_SIZE_STENCIL_BIT = 0x00000010, 
30 KTX_FORMAT_SIZE_YUVSDA_BIT = 0x00000020, 
31} ktxFormatSizeFlagBits; 
32 
33typedef ktx_uint32_t ktxFormatSizeFlags; 
34 
35/** 
36 * @brief Structure for holding size information for a texture format. 
37 */ 
38typedef struct ktxFormatSize { 
39 ktxFormatSizeFlags flags; 
40 unsigned int paletteSizeInBits; // For KTX1. 
41 unsigned int blockSizeInBits; 
42 unsigned int blockWidth; // in texels 
43 unsigned int blockHeight; // in texels 
44 unsigned int blockDepth; // in texels 
45 unsigned int minBlocksX; // Minimum required number of blocks 
46 unsigned int minBlocksY; 
47} ktxFormatSize; 
48 
49#ifdef __cplusplus 
50extern "C" { 
51#endif 
52 
53bool ktxFormatSize_initFromDfd(ktxFormatSize* This, ktx_uint32_t* pDfd); 
54 
55#ifdef __cplusplus 
56} // extern "C" 
57#endif 
58 
59#endif /* _FORMATSIZE_H_ */ 
60