mirror of
https://github.com/Ed94/raddebugger.git
synced 2026-07-20 07:26:47 +00:00
Nikita Smith
203 lines
9.0 KiB
C
203 lines
9.0 KiB
C
// Copyright (c) 2024 Epic Games Tools
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// Licensed under the MIT license (https://opensource.org/license/mit/)
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#pragma once
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#define MSF_PAGE_STATE_FREE 1
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#define MSF_PAGE_STATE_ALLOC 0
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#define MSF_FPM0 1
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#define MSF_FPM1 2
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#define MSF_DEFAULT_PAGE_SIZE 4096
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#define MSF_DEFAULT_FPM MSF_FPM0
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typedef struct MSF_PageNumberArray
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{
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U64 count;
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MSF_PageNumber *v;
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} MSF_PageNumberArray;
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typedef struct MSF_PageNode
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{
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struct MSF_PageNode *next;
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struct MSF_PageNode *prev;
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MSF_PageNumber pn;
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} MSF_PageNode;
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typedef struct MSF_PageList
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{
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MSF_PageNode *first;
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MSF_PageNode *last;
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MSF_UInt count;
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} MSF_PageList;
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typedef struct MSF_Stream
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{
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MSF_StreamNumber sn;
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MSF_UInt size;
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MSF_UInt pos;
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MSF_PageNode *pos_page;
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MSF_PageList page_list;
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} MSF_Stream;
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typedef struct MSF_StreamNode
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{
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struct MSF_StreamNode *next;
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struct MSF_StreamNode *prev;
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MSF_Stream data;
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} MSF_StreamNode;
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typedef struct MSF_StreamList
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{
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MSF_UInt count;
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MSF_StreamNode *first;
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MSF_StreamNode *last;
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} MSF_StreamList;
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typedef struct MSF_PageDataNode
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{
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struct MSF_PageDataNode *next;
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struct MSF_PageDataNode *prev;
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U8 *data;
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} MSF_PageDataNode;
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typedef struct MSF_PageDataList
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{
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MSF_PageDataNode *first;
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MSF_PageDataNode *last;
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MSF_UInt count;
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} MSF_PageDataList;
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typedef struct MSF_Context
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{
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Arena *arena;
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MSF_UInt page_size;
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MSF_UInt active_fpm;
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MSF_UInt fpm_rover;
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MSF_PageNumber page_count;
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MSF_PageDataList page_data_list;
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MSF_PageDataList page_data_pool;
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MSF_PageList header_page_list;
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MSF_PageList root_page_list;
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MSF_PageList st_page_list;
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MSF_PageList page_pool;
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MSF_StreamList st;
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} MSF_Context;
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typedef enum MSF_Error
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{
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MSF_Error_OK,
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// if you get this error this means stream table was divided into too many
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// pages, and to fix this you need to bump up the page size
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MSF_Error_STREAM_TABLE_HAS_TOO_MANY_PAGES,
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MSF_OpenError_NOT_ENOUGH_BYTES_TO_READ_HEADER,
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MSF_OpenError_INVALID_MAGIC,
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MSF_OpenError_PAGE_SIZE_IS_NOT_POW2,
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MSF_OpenError_INVALID_PAGE_SIZE,
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MSF_OpenError_NOT_ENOUGH_PAGES_TO_INIT,
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MSF_OpenError_INVALID_ROOT_STREAM_PAGE_NUMBER,
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MSF_OpenError_UNABLE_TO_READ_STREAM_TABLE_PAGE_NUMBERS,
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MSF_OpenError_STREAM_COUNT_OVERFLOW,
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MSF_OpenError_UNABLE_TO_READ_STREAM_SIZES,
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MSF_OpenError_INVALID_STREAM_TABLE,
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MSF_OpenError_INVALID_ACTIVE_FPM,
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MSF_OpenError_PAGE_COUNT_DOESNT_MATCH_DATA_SIZE,
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MSF_BuildError_UNABLE_TO_WRITE_STREAM_TABLE,
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MSF_BuildError_UNABLE_TO_WRITE_STREAM_TABLE_PAGE_NUMBER_DIRECTORY,
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MSF_BuildError_UNABLE_TO_WRITE_ROOT_DIRECTORY,
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MSF_BuildError_UNABLE_TO_WRITE_HEADER,
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} MSF_Error;
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////////////////////////////////
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typedef struct
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{
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MSF_UInt page_size;
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MSF_PageDataList page_data_list;
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MSF_PageList page_list;
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MSF_UInt stream_pos;
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String8 data;
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Rng1U64 *range_arr;
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} MSF_WriteTask;
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////////////////////////////////
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internal MSF_Context * msf_alloc(MSF_UInt page_size, MSF_UInt active_fpm);
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internal MSF_Error msf_open(String8 data, MSF_Context **msf_out);
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internal void msf_release(MSF_Context **msf_ptr);
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internal MSF_Error msf_build(MSF_Context *msf);
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internal U64 msf_get_save_size(MSF_Context *msf);
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internal String8List msf_get_page_data_nodes(Arena *arena, MSF_Context *msf);
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internal B32 msf_save(MSF_Context *msf, void *buffer, U64 buffer_size);
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internal MSF_Error msf_save_arena(Arena *arena, MSF_Context *msf, String8 *data_out);
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internal MSF_StreamNode * msf_find_stream_node(MSF_Context *msf, MSF_StreamNumber sn);
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internal MSF_Stream * msf_find_stream(MSF_Context *msf, MSF_StreamNumber sn);
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internal B32 msf_grow(MSF_Context *msf, MSF_PageNumber page_count);
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internal MSF_PageNumber * msf_alloc_pn_arr(Arena *arena, MSF_Context *msf, MSF_UInt alloc_count);
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internal void msf_free_pn_arr(MSF_Context *msf, MSF_PageNumber *pn_arr, MSF_UInt pn_count);
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internal MSF_PageList msf_alloc_pages(MSF_Context *msf, MSF_UInt alloc_count);
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internal void msf_free_pages(MSF_Context *msf, MSF_PageList *page_list);
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internal MSF_StreamNumber msf_stream_alloc_ex(MSF_Context *msf, MSF_UInt size);
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internal MSF_StreamNumber msf_stream_alloc(MSF_Context *msf);
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internal B32 msf_stream_free(MSF_Context *msf, MSF_StreamNumber sn);
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internal B32 msf_stream_resize(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt new_size);
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internal B32 msf_stream_resize_ex(MSF_Context *msf, MSF_Stream *stream, MSF_UInt size);
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internal void msf_stream_set_size(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt size);
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internal MSF_UInt msf_stream_get_size(MSF_Context *msf, MSF_StreamNumber sn);
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internal MSF_UInt msf_stream_get_cap(MSF_Context *msf, MSF_StreamNumber);
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internal MSF_UInt msf_stream_get_pos(MSF_Context *msf, MSF_StreamNumber sn);
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internal void msf_stream_align(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt align);
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internal B32 msf_stream_reserve(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt size);
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internal B32 msf_stream_seek(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt new_pos);
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internal B32 msf_stream_seek_start(MSF_Context *msf, MSF_StreamNumber sn);
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internal B32 msf_stream_seek_end(MSF_Context *msf, MSF_StreamNumber sn);
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internal MSF_UInt msf_stream_read(MSF_Context *msf, MSF_StreamNumber sn, void *dst, MSF_UInt dst_len);
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internal String8 msf_stream_read_block(Arena *arena, MSF_Context *msf, MSF_StreamNumber sn, U64 block_size);
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internal String8 msf_stream_read_string(Arena *arena, MSF_Context *msf, MSF_StreamNumber sn);
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internal S8 msf_stream_read_s8(MSF_Context *msf, MSF_StreamNumber sn);
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internal S16 msf_stream_read_s16(MSF_Context *msf, MSF_StreamNumber sn);
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internal S32 msf_stream_read_s32(MSF_Context *msf, MSF_StreamNumber sn);
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internal S64 msf_stream_read_s64(MSF_Context *msf, MSF_StreamNumber sn);
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internal U8 msf_stream_read_u8(MSF_Context *msf, MSF_StreamNumber sn);
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internal U16 msf_stream_read_u16(MSF_Context *msf, MSF_StreamNumber sn);
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internal U32 msf_stream_read_u32(MSF_Context *msf, MSF_StreamNumber sn);
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internal U64 msf_stream_read_u64(MSF_Context *msf, MSF_StreamNumber sn);
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#define msf_stream_read_array(msf, sn, ptr, count) msf_stream_read(msf, sn, ptr, sizeof(*ptr) * (count))
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#define msf_stream_read_struct(msf, sn, ptr) msf_stream_read_array(msf, sn, ptr, 1)
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internal B32 msf_stream_write(MSF_Context *msf, MSF_StreamNumber sn, void *buffer, MSF_UInt buffer_size);
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internal B32 msf_stream_write_string(MSF_Context *msf, MSF_StreamNumber sn, String8 string);
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internal B32 msf_stream_write_list(MSF_Context *msf, MSF_StreamNumber sn, String8List list);
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internal B32 msf_stream_write_uint(MSF_Context *msf, MSF_StreamNumber sn, MSF_UInt value);
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internal B32 msf_stream_write_cstr(MSF_Context *msf, MSF_StreamNumber sn, String8 string);
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internal B32 msf_stream_write_u8(MSF_Context *msf, MSF_StreamNumber sn, U8 value);
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internal B32 msf_stream_write_u16(MSF_Context *msf, MSF_StreamNumber sn, U16 value);
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internal B32 msf_stream_write_u32(MSF_Context *msf, MSF_StreamNumber sn, U32 value);
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internal B32 msf_stream_write_u64(MSF_Context *msf, MSF_StreamNumber sn, U64 value);
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internal B32 msf_stream_write_s8(MSF_Context *msf, MSF_StreamNumber sn, S8 value);
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internal B32 msf_stream_write_s16(MSF_Context *msf, MSF_StreamNumber sn, S16 value);
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internal B32 msf_stream_write_s32(MSF_Context *msf, MSF_StreamNumber sn, S32 value);
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internal B32 msf_stream_write_s64(MSF_Context *msf, MSF_StreamNumber sn, S64 value);
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internal B32 msf_stream_write_parallel(TP_Context *tp, MSF_Context *msf, MSF_StreamNumber sn, void *buffer, MSF_UInt buffer_size);
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#define msf_stream_write_array(m, s, v, c) msf_stream_write(m, s, (void*)(v), sizeof(*(v)) * (c))
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#define msf_stream_write_struct(m, s, v ) msf_stream_write_array(m, s, v, 1)
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internal MSF_UInt msf_count_pages(MSF_UInt page_size, U64 data_size);
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internal MSF_PageNumber msf_get_page_count_cap(MSF_PageDataList page_data_list, MSF_UInt page_size);
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internal MSF_UInt msf_get_fpm_interval_correct(MSF_UInt page_size);
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internal MSF_UInt msf_get_fpm_interval_wrong(MSF_UInt page_size);
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internal MSF_UInt msf_get_fpm_idx_from_pn(MSF_UInt page_size, MSF_PageNumber pn);
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internal MSF_UInt msf_get_fpm_page_bit_state(MSF_PageDataList page_data_list, MSF_UInt page_size, MSF_PageNumber active_fpm, MSF_PageNumber pn);
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internal void msf_set_fpm_bit(MSF_PageDataList page_data_list, MSF_UInt page_size, MSF_PageNumber active_fpm, MSF_PageNumber pn, B32 state);
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internal B32 msf_write(MSF_PageDataList page_data_list, MSF_UInt page_size, MSF_PageList page_list, MSF_UInt offset, void *buffer, MSF_UInt buffer_size);
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internal MSF_UInt msf_read(MSF_PageDataList page_data_list, MSF_UInt page_size, MSF_PageList page_list, MSF_UInt offset, void *buffer, MSF_UInt buffer_size);
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internal char * msf_error_to_string(MSF_Error code);
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