99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
#pragma once
|
|
#ifndef __PAK_DEFINITIONS_H__
|
|
#define __PAK_DEFINITIONS_H__
|
|
// msvc hacks
|
|
#ifdef _MSC_VER
|
|
#include <windows.h>
|
|
#define ftello ftell
|
|
#define fseeko fseek
|
|
#define PATH_MAX MAX_PATH
|
|
#endif
|
|
// linux header
|
|
#ifdef __linux__
|
|
#include <linux/limits.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
// macOS headers
|
|
#ifdef __APPLE__
|
|
#include <sys/syslimits.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#pragma pack(push)
|
|
#pragma pack(1)
|
|
|
|
// v5 header:
|
|
// uint32(version), uint8(encoding), 3 bytes padding,
|
|
// uint16(resource_count), uint16(alias_count)
|
|
typedef struct PakHeaderV5 {
|
|
uint32_t version;
|
|
uint8_t encoding;
|
|
uint8_t _padding[3];
|
|
uint16_t resource_count;
|
|
uint16_t alias_count;
|
|
} PakHeaderV5;
|
|
|
|
// v4 header: uint32(version), uint32(resource_count), uint8(encoding)
|
|
typedef struct PakHeaderV4 {
|
|
uint32_t version;
|
|
uint32_t resource_count;
|
|
uint8_t encoding;
|
|
} PakHeaderV4;
|
|
|
|
// Entry: uint16_t resourceId; uint32_t offset;
|
|
typedef struct PakEntry {
|
|
uint16_t resource_id;
|
|
uint32_t offset;
|
|
} PakEntry;
|
|
|
|
// Alias: uint16_t resourceId; uint16_t entry_index;
|
|
typedef struct PakAlias {
|
|
uint16_t resource_id;
|
|
uint16_t entry_index;
|
|
} PakAlias;
|
|
|
|
#pragma pack(pop)
|
|
|
|
/**
|
|
* Get pak version from pak buffer.
|
|
* @param void *buffer - pointer to pak.
|
|
* @return uint32_t - pak version.
|
|
*/
|
|
#define pakGetVerison(buffer) (*(uint32_t *)(buffer))
|
|
#define PAK_HEADER_SIZE_V4 sizeof(PakHeaderV4)
|
|
#define PAK_HEADER_SIZE_V5 sizeof(PakHeaderV5)
|
|
#define PAK_ENTRY_SIZE sizeof(PakEntry)
|
|
#define PAK_ALIAS_SIZE sizeof(PakAlias)
|
|
|
|
#define PAK_ERROR_UNKNOWN_VER "Error: Unknown pak version."
|
|
#define PAK_ERROR_TRUNCATED "Error: Probably truncated pak file."
|
|
#define PAK_ERROR_BROKEN_INDEX "Error: Probably broken pak index file."
|
|
|
|
typedef struct MyPakHeader {
|
|
uint32_t version;
|
|
uint32_t resource_count;
|
|
uint16_t alias_count;
|
|
uint8_t encoding;
|
|
uint8_t size;
|
|
} MyPakHeader;
|
|
|
|
typedef struct PakFile {
|
|
uint16_t id;
|
|
uint32_t size;
|
|
void *buffer;
|
|
} PakFile;
|
|
|
|
// file-io
|
|
#define NULL_File ((PakFile){0, 0, NULL})
|
|
#define freeFile(file) (free((file).buffer))
|
|
|
|
// pack/unpack
|
|
#define PAK_BUFFER_BLOCK_SIZE 4096
|
|
#define PAK_BUFFER_MIN_FREE_SIZE 512
|
|
#define PAK_INDEX_GLOBAL_TAG "[Global]"
|
|
#define PAK_INDEX_RES_TAG "[Resources]"
|
|
#define PAK_INDEX_ALIAS_TAG "[Alias]"
|
|
#endif // __PAK_DEFINITIONS_H__
|