260 lines
7.0 KiB
C++
260 lines
7.0 KiB
C++
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#include <vector>
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#include <string>
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static std::vector<std::string> sounds = {
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"PCM_cloth1",
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"PCM_cloth2",
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"PCM_cloth3",
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"PCM_cloth4",
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"PCM_grass1",
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"PCM_grass2",
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"PCM_grass3",
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"PCM_grass4",
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"PCM_gravel1",
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"PCM_gravel2",
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"PCM_gravel3",
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"PCM_gravel4",
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"PCM_sand1",
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"PCM_sand2",
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"PCM_sand3",
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"PCM_sand4",
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"PCM_stone1",
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"PCM_stone2",
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"PCM_stone3",
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"PCM_stone4",
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"PCM_wood1",
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"PCM_wood2",
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"PCM_wood3",
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"PCM_wood4",
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"PCM_splash",
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"PCM_explode",
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"PCM_click",
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"PCM_door_open",
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"PCM_door_close",
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"PCM_pop",
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"PCM_pop2",
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"PCM_hurt",
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"PCM_glass1",
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"PCM_glass2",
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"PCM_glass3",
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"PCM_sheep1",
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"PCM_sheep2",
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"PCM_sheep3",
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"PCM_pig1",
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"PCM_pig2",
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"PCM_pig3",
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"PCM_pigdeath",
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"PCM_cow1",
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"PCM_cow2",
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"PCM_cow3",
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"PCM_cow4",
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"PCM_cowhurt1",
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"PCM_cowhurt2",
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"PCM_cowhurt3",
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"PCM_chicken2",
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"PCM_chicken3",
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"PCM_chickenhurt1",
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"PCM_chickenhurt2",
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"PCM_zombie1",
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"PCM_zombie2",
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"PCM_zombie3",
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"PCM_zombiedeath",
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"PCM_zombiehurt1",
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"PCM_zombiehurt2",
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"PCM_skeleton1",
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"PCM_skeleton2",
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"PCM_skeleton3",
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"PCM_skeletonhurt1",
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"PCM_skeletonhurt2",
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"PCM_skeletonhurt3",
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"PCM_skeletonhurt4",
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"PCM_spider1",
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"PCM_spider2",
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"PCM_spider3",
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"PCM_spider4",
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"PCM_spiderdeath",
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"PCM_zpig1",
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"PCM_zpig2",
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"PCM_zpig3",
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"PCM_zpig4",
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"PCM_zpigangry1",
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"PCM_zpigangry2",
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"PCM_zpigangry3",
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"PCM_zpigangry4",
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"PCM_zpigdeath",
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"PCM_zpighurt1",
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"PCM_zpighurt2",
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"PCM_fallbig1",
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"PCM_fallbig2",
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"PCM_fallsmall",
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"PCM_bow",
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"PCM_bowhit1",
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"PCM_bowhit2",
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"PCM_bowhit3",
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"PCM_bowhit4",
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"PCM_creeper1",
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"PCM_creeper2",
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"PCM_creeper3",
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"PCM_creeper4",
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"PCM_creeperdeath",
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"PCM_eat1",
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"PCM_eat2",
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"PCM_eat3",
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"PCM_fuse",
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"PCM_burp",
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"PCM_fizz",
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"PCM_drink",
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"PCM_chestopen",
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"PCM_chestclosed"
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};
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#include <functional>
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <elf.h>
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#define WARN(format, ...) { fprintf(stderr, "[WARN]: " format "\n", __VA_ARGS__); }
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#define ERR(format, ...) { fprintf(stderr, "[ERR]: (%s:%i): " format "\n", __FILE__, __LINE__, __VA_ARGS__); exit(EXIT_FAILURE); }
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// Load Symbol From ELF File
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static void load_symbol(const char *source, const char *name, std::function<void(unsigned char *, uint32_t)> callback) {
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// File Data
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FILE *file_obj = NULL;
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unsigned char *file_map = NULL;
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long int file_size = 0;
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// Code
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{
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// Load Main Binary
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file_obj = fopen(source, "rb");
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// Verify Binary
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if (!file_obj) {
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WARN("Unable To Open: %s", source);
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goto end;
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}
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// Get File Size
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fseek(file_obj, 0L, SEEK_END);
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file_size = ftell(file_obj);
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fseek(file_obj, 0L, SEEK_SET);
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// Map File To Pointer
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file_map = (unsigned char *) mmap(0, file_size, PROT_READ, MAP_PRIVATE, fileno(file_obj), 0);
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// Check ELF Magic
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if (file_map[EI_MAG0] != ELFMAG0 || file_map[EI_MAG1] != ELFMAG1 || file_map[EI_MAG2] != ELFMAG2 || file_map[EI_MAG3] != ELFMAG3) {
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WARN("Not An ELF File: %s", source);
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goto end;
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}
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if (file_map[EI_CLASS] != ELFCLASS32) {
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WARN("ELF File Isn't 32-Bit: %s", source);
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goto end;
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}
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if (file_map[EI_DATA] != ELFDATA2LSB) {
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WARN("ELF File Isn't Little-Endian: %s", source);
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goto end;
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}
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// Parse ELF
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Elf32_Ehdr *elf_header = (Elf32_Ehdr *) file_map;
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Elf32_Shdr *elf_section_headers = (Elf32_Shdr *) (file_map + elf_header->e_shoff);
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int elf_section_header_count = elf_header->e_shnum;
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// Locate Section Names
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Elf32_Shdr elf_shstrtab = elf_section_headers[elf_header->e_shstrndx];
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unsigned char *elf_shstrtab_p = file_map + elf_shstrtab.sh_offset;
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// Locate String Table
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unsigned char *elf_strtab_p = NULL;
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for (int i = 0; i < elf_section_header_count; ++i) {
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Elf32_Shdr header = elf_section_headers[i];
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// Check Section Type
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if (header.sh_type == SHT_STRTAB) {
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// Check Section Name
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char *section_name = (char *) (elf_shstrtab_p + header.sh_name);
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if (strcmp(section_name, ".dynstr") == 0) {
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// Found
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elf_strtab_p = file_map + header.sh_offset;
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break;
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}
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}
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}
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if (elf_strtab_p == NULL) {
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WARN("Unable To Find String Table In: %s", source);
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goto end;
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}
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// Locate Symbol Tables
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Elf32_Sym *symbol = NULL;
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for (int i = 0; i < elf_section_header_count; ++i) {
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// Exit Loop If Finished
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if (symbol != NULL) {
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break;
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}
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// Get Section Header
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Elf32_Shdr header = elf_section_headers[i];
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// Check Section Type
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if (header.sh_type == SHT_DYNSYM) {
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// Symbol Table
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Elf32_Sym *table = (Elf32_Sym *) (file_map + header.sh_offset);
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for (int j = 0; (j * sizeof (Elf32_Sym)) < header.sh_size; j++) {
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// Check Symbol Name
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char *symbol_name = (char *) (elf_strtab_p + table[j].st_name);
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if (strcmp(symbol_name, name) == 0) {
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// Found
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symbol = &table[j];
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break;
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}
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}
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}
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}
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// Check Symbol
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if (symbol != NULL) {
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// Convert Virtual Address To File Offset
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Elf32_Shdr symbol_section_header = elf_section_headers[symbol->st_shndx];
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int vaddr_to_offset = -symbol_section_header.sh_addr + symbol_section_header.sh_offset;
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Elf32_Off symbol_offset = symbol->st_value + vaddr_to_offset;
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// Access Symbol
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unsigned char *value = file_map + symbol_offset;
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uint32_t size = symbol->st_size;
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callback(value, size);
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} else {
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// Unable To Find Symbol
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WARN("Unable To Find Symbol: %s", name);
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}
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}
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end:
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// Unmap And Close File
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if (file_map != NULL) {
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munmap(file_map, file_size);
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}
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if (file_obj != NULL) {
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fclose(file_obj);
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}
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}
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// Main
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int main(int argc, char *argv[]) {
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if (argc != 2) {
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ERR("%s", "Invalid Arguments");
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}
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for (std::string sound : sounds) {
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load_symbol(argv[1], sound.c_str(), [sound](unsigned char *symbol, uint32_t size) {
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printf("const unsigned char %s[] = {", sound.c_str());
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for (uint32_t i = 0; i < size; i++) {
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printf("%u", (unsigned int) symbol[i]);
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if (i < (size - 1)) {
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printf(", ");
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}
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}
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printf("};\n");
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});
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}
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}
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