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Implement controller pak functions
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Sonic Dreamcaster
parent
ba2acaeb5c
commit
da54226f8a
2 changed files with 255 additions and 21 deletions
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@ -1,51 +1,278 @@
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#include <filesystem>
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#include <fstream>
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#include "ultramodern/ultra64.h"
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#include "ultramodern/ultramodern.hpp"
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#include "recomp.h"
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#include "helpers.hpp"
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extern "C" void osPfsInitPak_recomp(uint8_t * rdram, recomp_context* ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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typedef struct ControllerPak {
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OSPfsState state;
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FILE* file;
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} ControllerPak;
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static ControllerPak sControllerPak[16];
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static int sFileSelect = 0;
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void ByteSwapFile(u8* buffer, size_t size) {
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uint8_t c0, c1, c2, c3;
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for (size_t i = 0; i < size; i += 4) {
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c0 = buffer[i + 0];
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c1 = buffer[i + 1];
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c2 = buffer[i + 2];
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c3 = buffer[i + 3];
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buffer[i + 3] = c0;
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buffer[i + 2] = c1;
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buffer[i + 1] = c2;
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buffer[i + 0] = c3;
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}
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}
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extern "C" void osPfsFreeBlocks_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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// s32 osPfsIsPlug(OSMesgQueue* mq, u8* pattern)
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extern "C" void osPfsIsPlug_recomp(uint8_t* rdram, recomp_context* ctx) {
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MEM_B(0, ctx->r5) = 1; // *pattern = 1;
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsAllocateFile_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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// s32 osPfsInit(OSMesgQueue* queue, OSPfs* pfs, int channel) {
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extern "C" void osPfsInit_recomp(uint8_t* rdram, recomp_context* ctx) {
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OSMesgQueue* queue = _arg<0, OSMesgQueue*>(rdram, ctx);
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OSPfs* pfs = _arg<1, OSPfs*>(rdram, ctx);
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s32 channel = _arg<2, s32>(rdram, ctx);
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pfs->queue = (int32_t) queue;
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pfs->channel = channel;
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pfs->status = 0x1;
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsDeleteFile_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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// s32 osPfsInitPak(OSMesgQueue* queue, OSPfs* pfs, int channel);
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extern "C" void osPfsInitPak_recomp(uint8_t* rdram, recomp_context* ctx) {
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OSMesgQueue* queue = _arg<0, OSMesgQueue*>(rdram, ctx);
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OSPfs* pfs = _arg<1, OSPfs*>(rdram, ctx);
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s32 channel = _arg<2, s32>(rdram, ctx);
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pfs->queue = (int32_t) queue;
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pfs->channel = channel;
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pfs->status = 0x1;
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsFileState_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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// s32 osPfsFreeBlocks(OSPfs* pfs, s32* bytes_not_used);
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extern "C" void osPfsFreeBlocks_recomp(uint8_t* rdram, recomp_context* ctx) {
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s32* bytes_not_used = _arg<1, s32*>(rdram, ctx);
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*bytes_not_used = 123 << 8;
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsFindFile_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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// TODO: VALIDATE
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// Can't really be validated without a valid controller pak file system header, which is only used
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// by the controller pak manager present in games by holding START on boot and not necessary for recomp.
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// s32 osPfsAllocateFile(OSPfs* pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name,
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// int file_size_in_bytes, s32* file_no);
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extern "C" void osPfsAllocateFile_recomp(uint8_t* rdram, recomp_context* ctx) {
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u16 company_code = _arg<1, u16>(rdram, ctx);
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u32 game_code = _arg<2, u32>(rdram, ctx);
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u8* game_name = _arg<3, u8*>(rdram, ctx);
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u8* ext_name = TO_PTR(u8, MEM_W(0x10, ctx->r29));
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s32 file_size_in_bytes = (s32) MEM_W(0x14, ctx->r29);
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s32* file_no = TO_PTR(s32, MEM_W(0x18, ctx->r29));
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ControllerPak* pak = &sControllerPak[*file_no];
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printf("osPfsAllocateFile_recomp:\n");
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*file_no = sFileSelect++;
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char filename[100];
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sprintf(filename, "controllerPak_file_%d.sav", *file_no);
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pak->file = fopen(filename, "wb+");
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file_size_in_bytes = (file_size_in_bytes + 31) & ~31;
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u8* zero_block = (u8*) malloc(file_size_in_bytes);
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memset(zero_block, 0, file_size_in_bytes);
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fwrite(zero_block, file_size_in_bytes, 1, pak->file);
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pak->state.company_code = company_code;
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pak->state.game_code = game_code;
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strcpy(pak->state.game_name, (const char*) game_name);
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strcpy(pak->state.ext_name, (const char*) ext_name);
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsReadWriteFile_recomp(uint8_t * rdram, recomp_context * ctx) {
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// TODO: VALIDATE
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// Can't really be validated without a valid controller pak file system header, which is only used
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// by the controller pak manager present in games by holding START on boot and not necessary for recomp.
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// s32 osPfsDeleteFile(OSPfs* pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name);
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extern "C" void osPfsDeleteFile_recomp(uint8_t* rdram, recomp_context* ctx) {
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u16 company_code = _arg<1, u16>(rdram, ctx);
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u32 game_code = _arg<2, u32>(rdram, ctx);
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u8* game_name = _arg<3, u8*>(rdram, ctx);
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u8* ext_name = TO_PTR(u8, MEM_W(0x10, ctx->r29));
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s32 file_no;
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printf("osPfsDeleteFile_recomp:\n");
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for (size_t i = 0; i < ARRAYSIZE(sControllerPak); i++) {
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if ((sControllerPak[i].state.company_code = company_code) && (sControllerPak[i].state.game_code == game_code) &&
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(strcmp(sControllerPak[i].state.game_name, (const char*) game_name) == 0) &&
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strcmp(sControllerPak[i].state.ext_name, (const char*) ext_name) == 0) {
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file_no = i;
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char filename[100];
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sprintf(filename, "controllerPak_file_%d.sav", file_no);
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remove(filename);
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ctx->r2 = 0; // PFS_NO_ERROR
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printf("Returned 0: FILE DELETED\n\n");
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return;
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} else {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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printf("Returned 1: FILE NOT FOUND\n\n");
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}
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}
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}
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extern "C" void osPfsChecker_recomp(uint8_t * rdram, recomp_context * ctx) {
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ctx->r2 = 1; // PFS_ERR_NOPACK
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bool IsFileEmpty(FILE* file, s32 file_no) {
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u8 data_buffer[256];
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fseek(file, 0, SEEK_SET);
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fread(data_buffer, 0x100, 1, file);
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long current = ftell(file);
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fseek(file, 0, SEEK_END);
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long size = ftell(file);
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fseek(file, current, SEEK_SET);
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return size == 0;
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}
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extern "C" void osPfsNumFiles_recomp(uint8_t * rdram, recomp_context * ctx) {
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// s32 osPfsFileState(OSPfs* pfs, s32 file_no, OSPfsState* state);
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extern "C" void osPfsFileState_recomp(uint8_t* rdram, recomp_context* ctx) {
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s32 file_no = _arg<1, s32>(rdram, ctx);
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OSPfsState* state = _arg<2, OSPfsState*>(rdram, ctx);
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ControllerPak* pak = &sControllerPak[file_no];
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char filename[100];
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sprintf(filename, "controllerPak_file_%d.sav", file_no);
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pak->file = fopen(filename, "rb+");
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if (pak->file == NULL) {
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pak->file = fopen(filename, "wb+");
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}
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if (!IsFileEmpty(pak->file, file_no)) {
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state->file_size = pak->state.file_size;
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state->company_code = pak->state.company_code;
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state->game_code = pak->state.game_code;
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for (size_t j = 0; j < ARRAYSIZE(pak->state.game_name); j++) {
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state->game_name[j] = pak->state.game_name[j];
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}
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for (size_t j = 0; j < ARRAYSIZE(pak->state.ext_name); j++) {
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state->ext_name[j] = pak->state.ext_name[j];
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}
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fclose(pak->file);
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ctx->r2 = 0; // PFS_NO_ERROR
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} else {
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fclose(pak->file);
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remove(filename);
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ctx->r2 = 1; // PFS_ERR_NOPACK
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}
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}
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// s32 osPfsFindFile(OSPfs* pfs, u16 company_code, u32 game_code, u8* game_name, u8* ext_name, s32* file_no);
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extern "C" void osPfsFindFile_recomp(uint8_t* rdram, recomp_context* ctx) {
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u16 company_code = _arg<1, u16>(rdram, ctx);
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u32 game_code = _arg<2, u32>(rdram, ctx);
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u8* game_name = _arg<3, u8*>(rdram, ctx);
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u8* ext_name = TO_PTR(u8, MEM_W(0x10, ctx->r29));
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s32* file_no = TO_PTR(s32, MEM_W(0x14, ctx->r29));
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for (size_t i = 0; i < ARRAYSIZE(sControllerPak); i++) {
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if ((sControllerPak[i].state.game_code == game_code) &&
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(sControllerPak[i].state.company_code == company_code) &&
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(strcmp(sControllerPak[i].state.game_name, (const char*) game_name) == 0) &&
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strcmp(sControllerPak[i].state.ext_name, (const char*) ext_name) == 0) {
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// File found
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*file_no = i;
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ctx->r2 = 0; // PFS_NO_ERROR
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return;
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}
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}
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// Open file
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*file_no = sFileSelect++;
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char filename[100];
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sprintf(filename, "controllerPak_file_%d.sav", *file_no);
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sControllerPak[*file_no].file = fopen(filename, "rb+");
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if (sControllerPak[*file_no].file == NULL) {
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sControllerPak[*file_no].file = fopen(filename, "wb+");
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}
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sControllerPak[*file_no].state.company_code = company_code;
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sControllerPak[*file_no].state.game_code = game_code;
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strcpy(sControllerPak[*file_no].state.game_name, (const char*) game_name);
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strcpy(sControllerPak[*file_no].state.ext_name, (const char*) ext_name);
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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// s32 osPfsReadWriteFile(OSPfs* pfs, s32 file_no, u8 flag, int offset, int size_in_bytes, u8* data_buffer);
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extern "C" void osPfsReadWriteFile_recomp(uint8_t* rdram, recomp_context* ctx) {
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s32 file_no = _arg<1, s32>(rdram, ctx);
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u8 flag = _arg<2, u8>(rdram, ctx);
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s32 offset = _arg<3, s32>(rdram, ctx);
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s32 size_in_bytes = (s32) MEM_W(0x10, ctx->r29);
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u8* data_buffer = TO_PTR(u8, MEM_W(0x14, ctx->r29));
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ControllerPak* pak = &sControllerPak[file_no];
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if (flag == 0) {
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fseek(pak->file, offset, SEEK_SET);
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fread(data_buffer, size_in_bytes, 1, pak->file);
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ByteSwapFile(data_buffer, size_in_bytes);
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} else {
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ByteSwapFile(data_buffer, size_in_bytes);
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fseek(pak->file, offset, SEEK_SET);
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fwrite(data_buffer, size_in_bytes, 1, pak->file);
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}
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsChecker_recomp(uint8_t* rdram, recomp_context* ctx) {
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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// s32 osPfsNumFiles(OSPfs* pfs, s32* max_files, s32* files_used);
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extern "C" void osPfsNumFiles_recomp(uint8_t* rdram, recomp_context* ctx) {
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s32* max_files = _arg<1, s32*>(rdram, ctx);
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s32* files_used = _arg<2, s32*>(rdram, ctx);
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*max_files = 0;
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*files_used = 0;
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u8 files = 0;
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for (size_t i = 0; i < ARRAYSIZE(sControllerPak); i++) {
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if ((sControllerPak[i].state.company_code != 0) && (sControllerPak[i].state.game_code != 0)) {
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files++;
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}
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}
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_return<s32>(ctx, 1); // PFS_ERR_NOPACK
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*files_used = files;
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*max_files = ARRAYSIZE(sControllerPak);
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ctx->r2 = 0; // PFS_NO_ERROR
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}
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extern "C" void osPfsRepairId_recomp(uint8_t * rdram, recomp_context * ctx) {
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extern "C" void osPfsRepairId_recomp(uint8_t* rdram, recomp_context* ctx) {
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_return<s32>(ctx, 1); // PFS_ERR_NOPACK
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}
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@ -235,6 +235,13 @@ typedef struct {
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u8 banks;
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} OSPfs;
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typedef struct {
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/* 0x00 */ u32 file_size; /* bytes */
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/* 0x04 */ u32 game_code;
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/* 0x08 */ u16 company_code;
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/* 0x0C */ char ext_name[4];
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/* 0x10 */ char game_name[16];
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} OSPfsState; // size = 0x20
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// Controller
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