delta.h

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/* SPDX-License-Identifier: 0BSD */
 
/*
 * Author: Lasse Collin
 */
 
#ifndef LZMA_H_INTERNAL
#   error Never include this file directly. Use <lzma.h> instead.
#endif
 
 
#define LZMA_FILTER_DELTA       LZMA_VLI_C(0x03)
 
 
typedef enum {
    LZMA_DELTA_TYPE_BYTE
} lzma_delta_type;
 
 
typedef struct {
    lzma_delta_type type;
 
    uint32_t dist;
 
#   define LZMA_DELTA_DIST_MIN 1
 
#   define LZMA_DELTA_DIST_MAX 256
 
    /*
     * Reserved space to allow possible future extensions without
     * breaking the ABI. You should not touch these, because the names
     * of these variables may change. These are and will never be used
     * when type is LZMA_DELTA_TYPE_BYTE, so it is safe to leave these
     * uninitialized.
     */
 
    uint32_t reserved_int1;
 
    uint32_t reserved_int2;
 
    uint32_t reserved_int3;
 
    uint32_t reserved_int4;
 
    void *reserved_ptr1;
 
    void *reserved_ptr2;
 
} lzma_options_delta;