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/* -*- tab-width: 4; -*- */
/* vi: set sw=2 ts=4 expandtab: */
/*
* Copyright 2019-2020 The Khronos Group Inc.
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @internal
* @file
* @~English
*
* @brief Struct for returning size information about an image format.
*
* @author Mark Callow, www.edgewise-consulting.com
*/
#ifndef _FORMATSIZE_H_
#define _FORMATSIZE_H_
#include "ktx.h"
typedef enum ktxFormatSizeFlagBits {
KTX_FORMAT_SIZE_PACKED_BIT = 0x00000001,
KTX_FORMAT_SIZE_COMPRESSED_BIT = 0x00000002,
KTX_FORMAT_SIZE_PALETTIZED_BIT = 0x00000004,
KTX_FORMAT_SIZE_DEPTH_BIT = 0x00000008,
KTX_FORMAT_SIZE_STENCIL_BIT = 0x00000010,
KTX_FORMAT_SIZE_YUVSDA_BIT = 0x00000020,
} ktxFormatSizeFlagBits;
typedef ktx_uint32_t ktxFormatSizeFlags;
/**
* @brief Structure for holding size information for a texture format.
*/
typedef struct ktxFormatSize {
ktxFormatSizeFlags flags;
unsigned int paletteSizeInBits; // For KTX1.
unsigned int blockSizeInBits;
unsigned int blockWidth; // in texels
unsigned int blockHeight; // in texels
unsigned int blockDepth; // in texels
unsigned int minBlocksX; // Minimum required number of blocks
unsigned int minBlocksY;
} ktxFormatSize;
#ifdef __cplusplus
extern "C" {
#endif
bool ktxFormatSize_initFromDfd(ktxFormatSize* This, ktx_uint32_t* pDfd);
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* _FORMATSIZE_H_ */
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