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