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/*
* Vidvox Hap
* Copyright (C) 2015 Vittorio Giovara <vittorio.giovara@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_HAP_H
#define AVCODEC_HAP_H
#include <stdint.h>
#include "libavutil/opt.h"
#include "bytestream.h"
#include "texturedsp.h"
enum HapTextureFormat {
HAP_FMT_RGBDXT1 = 0x0B,
HAP_FMT_RGBADXT5 = 0x0E,
HAP_FMT_YCOCGDXT5 = 0x0F,
};
enum HapCompressor {
HAP_COMP_NONE = 0xA0,
HAP_COMP_SNAPPY = 0xB0,
HAP_COMP_COMPLEX = 0xC0,
};
typedef struct HapContext {
AVClass *class;
TextureDSPContext dxtc;
GetByteContext gbc;
int section_type; /* Header type */
int tex_rat; /* Compression ratio */
const uint8_t *tex_data; /* Compressed texture */
uint8_t *tex_buf; /* Uncompressed texture */
size_t tex_size; /* Size of the compressed texture */
uint8_t *snappied; /* Buffer interacting with snappy */
size_t max_snappy; /* Maximum compressed size for snappy buffer */
/* Pointer to the selected compress or decompress function */
int (*tex_fun)(uint8_t *dst, ptrdiff_t stride, const uint8_t *block);
} HapContext;
#endif /* AVCODEC_HAP_H */
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