746 lines
17 KiB
C++
746 lines
17 KiB
C++
#include "db.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "platform_compat.h"
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#include "xfile.h"
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namespace fallout {
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typedef struct FileList {
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XList xlist;
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struct FileList* next;
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} FileList;
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static int _db_list_compare(const void* p1, const void* p2);
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// Generic file progress report handler.
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//
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// 0x51DEEC
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static FileReadProgressHandler* gFileReadProgressHandler = NULL;
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// Bytes read so far while tracking progress.
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//
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// Once this value reaches [gFileReadProgressChunkSize] the handler is called
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// and this value resets to zero.
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//
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// 0x51DEF0
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static int gFileReadProgressBytesRead = 0;
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// The number of bytes to read between calls to progress handler.
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//
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// 0x673040
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static int gFileReadProgressChunkSize;
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// 0x673044
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static FileList* gFileListHead;
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// Opens file database.
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//
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// Returns -1 if [filePath1] was specified, but could not be opened by the
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// underlying xbase implementation. Result of opening [filePath2] is ignored.
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// Returns 0 on success.
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//
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// NOTE: There are two unknown parameters passed via edx and ecx. The [a2] is
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// always 0 at the calling sites, and [a4] is always 1. Both parameters are not
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// used, so it's impossible to figure out their meaning.
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//
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// 0x4C5D30
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int dbOpen(const char* filePath1, int a2, const char* filePath2, int a4)
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{
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if (filePath1 != NULL) {
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if (!xbaseOpen(filePath1)) {
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return -1;
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}
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}
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if (filePath2 != NULL) {
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xbaseOpen(filePath2);
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}
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return 0;
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}
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// 0x4C5D54
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int _db_select(int dbHandle)
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{
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return 0;
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}
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// NOTE: Uncollapsed 0x4C5D54.
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int _db_current()
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{
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return 0;
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}
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// 0x4C5D58
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int _db_total()
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{
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return 0;
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}
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// 0x4C5D60
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void dbExit()
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{
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xbaseReopenAll(NULL);
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}
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// TODO: sizePtr should be long*.
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//
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// 0x4C5D68
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int dbGetFileSize(const char* filePath, int* sizePtr)
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{
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assert(filePath); // "filename", "db.c", 108
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assert(sizePtr); // "de", "db.c", 109
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File* stream = xfileOpen(filePath, "rb");
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if (stream == NULL) {
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return -1;
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}
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*sizePtr = xfileGetSize(stream);
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xfileClose(stream);
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return 0;
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}
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// 0x4C5DD4
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int dbGetFileContents(const char* filePath, void* ptr)
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{
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assert(filePath); // "filename", "db.c", 141
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assert(ptr); // "buf", "db.c", 142
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File* stream = xfileOpen(filePath, "rb");
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if (stream == NULL) {
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return -1;
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}
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long size = xfileGetSize(stream);
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if (gFileReadProgressHandler != NULL) {
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unsigned char* byteBuffer = (unsigned char*)ptr;
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long remainingSize = size;
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long chunkSize = gFileReadProgressChunkSize - gFileReadProgressBytesRead;
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while (remainingSize >= chunkSize) {
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size_t bytesRead = xfileRead(byteBuffer, sizeof(*byteBuffer), chunkSize, stream);
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byteBuffer += bytesRead;
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remainingSize -= bytesRead;
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gFileReadProgressBytesRead = 0;
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gFileReadProgressHandler();
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chunkSize = gFileReadProgressChunkSize;
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}
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if (remainingSize != 0) {
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gFileReadProgressBytesRead += xfileRead(byteBuffer, sizeof(*byteBuffer), remainingSize, stream);
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}
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} else {
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xfileRead(ptr, 1, size, stream);
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}
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xfileClose(stream);
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return 0;
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}
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// 0x4C5EB4
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int fileClose(File* stream)
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{
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return xfileClose(stream);
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}
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// 0x4C5EC8
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File* fileOpen(const char* filename, const char* mode)
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{
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return xfileOpen(filename, mode);
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}
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// 0x4C5ED0
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int filePrintFormatted(File* stream, const char* format, ...)
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{
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assert(format); // "format", "db.c", 224
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va_list args;
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va_start(args, format);
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int rc = xfilePrintFormattedArgs(stream, format, args);
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va_end(args);
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return rc;
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}
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// 0x4C5F24
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int fileReadChar(File* stream)
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{
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if (gFileReadProgressHandler != NULL) {
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int ch = xfileReadChar(stream);
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gFileReadProgressBytesRead++;
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if (gFileReadProgressBytesRead >= gFileReadProgressChunkSize) {
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gFileReadProgressHandler();
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gFileReadProgressBytesRead = 0;
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}
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return ch;
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}
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return xfileReadChar(stream);
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}
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// 0x4C5F70
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char* fileReadString(char* string, size_t size, File* stream)
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{
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if (gFileReadProgressHandler != NULL) {
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if (xfileReadString(string, size, stream) == NULL) {
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return NULL;
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}
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gFileReadProgressBytesRead += strlen(string);
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while (gFileReadProgressBytesRead >= gFileReadProgressChunkSize) {
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gFileReadProgressHandler();
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gFileReadProgressBytesRead -= gFileReadProgressChunkSize;
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}
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return string;
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}
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return xfileReadString(string, size, stream);
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}
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// 0x4C5FEC
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int fileWriteString(const char* string, File* stream)
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{
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return xfileWriteString(string, stream);
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}
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// 0x4C5FFC
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size_t fileRead(void* ptr, size_t size, size_t count, File* stream)
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{
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if (gFileReadProgressHandler != NULL) {
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unsigned char* byteBuffer = (unsigned char*)ptr;
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size_t totalBytesRead = 0;
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long remainingSize = size * count;
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long chunkSize = gFileReadProgressChunkSize - gFileReadProgressBytesRead;
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while (remainingSize >= chunkSize) {
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size_t bytesRead = xfileRead(byteBuffer, sizeof(*byteBuffer), chunkSize, stream);
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byteBuffer += bytesRead;
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totalBytesRead += bytesRead;
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remainingSize -= bytesRead;
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gFileReadProgressBytesRead = 0;
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gFileReadProgressHandler();
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chunkSize = gFileReadProgressChunkSize;
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}
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if (remainingSize != 0) {
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size_t bytesRead = xfileRead(byteBuffer, sizeof(*byteBuffer), remainingSize, stream);
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gFileReadProgressBytesRead += bytesRead;
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totalBytesRead += bytesRead;
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}
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return totalBytesRead / size;
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}
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return xfileRead(ptr, size, count, stream);
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}
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// 0x4C60B8
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size_t fileWrite(const void* buf, size_t size, size_t count, File* stream)
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{
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return xfileWrite(buf, size, count, stream);
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}
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// 0x4C60C0
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int fileSeek(File* stream, long offset, int origin)
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{
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return xfileSeek(stream, offset, origin);
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}
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// 0x4C60C8
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long fileTell(File* stream)
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{
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return xfileTell(stream);
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}
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// 0x4C60D0
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void fileRewind(File* stream)
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{
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xfileRewind(stream);
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}
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// 0x4C60D8
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int fileEof(File* stream)
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{
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return xfileEof(stream);
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}
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// NOTE: Not sure about signness.
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//
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// 0x4C60E0
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int fileReadUInt8(File* stream, unsigned char* valuePtr)
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{
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int value = fileReadChar(stream);
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if (value == -1) {
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return -1;
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}
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*valuePtr = value & 0xFF;
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return 0;
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}
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// NOTE: Not sure about signness.
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//
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// 0x4C60F4
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int fileReadInt16(File* stream, short* valuePtr)
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{
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unsigned char high;
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// NOTE: Uninline.
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if (fileReadUInt8(stream, &high) == -1) {
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return -1;
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}
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unsigned char low;
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// NOTE: Uninline.
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if (fileReadUInt8(stream, &low) == -1) {
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return -1;
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}
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*valuePtr = (high << 8) | low;
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C60F4. There are only couple of places where
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// the game reads/writes 16-bit integers. I'm not sure there are unsigned
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// shorts used, but there are definitely signed (art offsets can be both
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// positive and negative). Provided just in case.
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int fileReadUInt16(File* stream, unsigned short* valuePtr)
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{
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return fileReadInt16(stream, (short*)valuePtr);
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}
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// 0x4C614C
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int fileReadInt32(File* stream, int* valuePtr)
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{
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int value;
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if (xfileRead(&value, 4, 1, stream) == -1) {
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return -1;
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}
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*valuePtr = ((value & 0xFF000000) >> 24) | ((value & 0xFF0000) >> 8) | ((value & 0xFF00) << 8) | ((value & 0xFF) << 24);
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return 0;
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}
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// NOTE: Uncollapsed 0x4C614C. The opposite of [_db_fwriteLong]. It can be either
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// signed vs. unsigned variant, as well as int vs. long. It's provided here to
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// identify places where data was written with [_db_fwriteLong].
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int _db_freadInt(File* stream, int* valuePtr)
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{
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return fileReadInt32(stream, valuePtr);
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}
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// NOTE: Probably uncollapsed 0x4C614C.
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int fileReadUInt32(File* stream, unsigned int* valuePtr)
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{
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return _db_freadInt(stream, (int*)valuePtr);
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}
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// NOTE: Uncollapsed 0x4C614C. The opposite of [fileWriteFloat].
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int fileReadFloat(File* stream, float* valuePtr)
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{
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return fileReadInt32(stream, (int*)valuePtr);
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}
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int fileReadBool(File* stream, bool* valuePtr)
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{
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int value;
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if (fileReadInt32(stream, &value) == -1) {
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return -1;
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}
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*valuePtr = (value != 0);
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return 0;
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}
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// NOTE: Not sure about signness.
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//
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// 0x4C61AC
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int fileWriteUInt8(File* stream, unsigned char value)
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{
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return xfileWriteChar(value, stream);
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};
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// 0x4C61C8
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int fileWriteInt16(File* stream, short value)
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{
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// NOTE: Uninline.
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if (fileWriteUInt8(stream, (value >> 8) & 0xFF) == -1) {
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return -1;
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}
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// NOTE: Uninline.
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if (fileWriteUInt8(stream, value & 0xFF) == -1) {
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return -1;
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C61C8.
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int fileWriteUInt16(File* stream, unsigned short value)
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{
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return fileWriteInt16(stream, (short)value);
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}
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// NOTE: Not sure about signness and int vs. long.
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//
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// 0x4C6214
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int fileWriteInt32(File* stream, int value)
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{
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// NOTE: Uninline.
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return _db_fwriteLong(stream, value);
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}
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// NOTE: Can either be signed vs. unsigned variant of [fileWriteInt32],
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// or int vs. long.
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//
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// 0x4C6244
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int _db_fwriteLong(File* stream, int value)
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{
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if (fileWriteInt16(stream, (value >> 16) & 0xFFFF) == -1) {
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return -1;
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}
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if (fileWriteInt16(stream, value & 0xFFFF) == -1) {
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return -1;
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C6214 or 0x4C6244.
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int fileWriteUInt32(File* stream, unsigned int value)
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{
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return _db_fwriteLong(stream, (int)value);
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}
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// 0x4C62C4
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int fileWriteFloat(File* stream, float value)
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{
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// NOTE: Uninline.
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return _db_fwriteLong(stream, *(int*)&value);
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}
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int fileWriteBool(File* stream, bool value)
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{
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return _db_fwriteLong(stream, value ? 1 : 0);
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}
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// 0x4C62FC
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int fileReadUInt8List(File* stream, unsigned char* arr, int count)
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{
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for (int index = 0; index < count; index++) {
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unsigned char ch;
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// NOTE: Uninline.
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if (fileReadUInt8(stream, &ch) == -1) {
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return -1;
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}
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arr[index] = ch;
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C62FC. There are couple of places where
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// [fileReadUInt8List] is used to read strings of fixed length. I'm not
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// pretty sure this function existed in the original code, but at least
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// it increases visibility of these places.
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int fileReadFixedLengthString(File* stream, char* string, int length)
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{
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return fileReadUInt8List(stream, (unsigned char*)string, length);
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}
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// 0x4C6330
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int fileReadInt16List(File* stream, short* arr, int count)
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{
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for (int index = 0; index < count; index++) {
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short value;
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// NOTE: Uninline.
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if (fileReadInt16(stream, &value) == -1) {
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return -1;
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}
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arr[index] = value;
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C6330.
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int fileReadUInt16List(File* stream, unsigned short* arr, int count)
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{
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return fileReadInt16List(stream, (short*)arr, count);
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}
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// NOTE: Not sure about signed/unsigned int/long.
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//
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// 0x4C63BC
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int fileReadInt32List(File* stream, int* arr, int count)
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{
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if (count == 0) {
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return 0;
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}
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if (fileRead(arr, sizeof(*arr) * count, 1, stream) < 1) {
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return -1;
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}
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for (int index = 0; index < count; index++) {
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int value = arr[index];
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arr[index] = ((value & 0xFF000000) >> 24) | ((value & 0xFF0000) >> 8) | ((value & 0xFF00) << 8) | ((value & 0xFF) << 24);
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}
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return 0;
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}
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// NOTE: Uncollapsed 0x4C63BC. The opposite of [_db_fwriteLongCount].
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int _db_freadIntCount(File* stream, int* arr, int count)
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{
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return fileReadInt32List(stream, arr, count);
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}
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// NOTE: Probably uncollapsed 0x4C63BC.
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int fileReadUInt32List(File* stream, unsigned int* arr, int count)
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{
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return fileReadInt32List(stream, (int*)arr, count);
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}
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// 0x4C6464
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int fileWriteUInt8List(File* stream, unsigned char* arr, int count)
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{
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for (int index = 0; index < count; index++) {
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// NOTE: Uninline.
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if (fileWriteUInt8(stream, arr[index]) == -1) {
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return -1;
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}
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C6464. See [fileReadFixedLengthString].
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int fileWriteFixedLengthString(File* stream, char* string, int length)
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{
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return fileWriteUInt8List(stream, (unsigned char*)string, length);
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}
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// 0x4C6490
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int fileWriteInt16List(File* stream, short* arr, int count)
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{
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for (int index = 0; index < count; index++) {
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// NOTE: Uninline.
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if (fileWriteInt16(stream, arr[index]) == -1) {
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return -1;
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}
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}
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return 0;
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}
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// NOTE: Probably uncollapsed 0x4C6490.
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int fileWriteUInt16List(File* stream, unsigned short* arr, int count)
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{
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return fileWriteInt16List(stream, (short*)arr, count);
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}
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// NOTE: Can be either signed/unsigned + int/long variant.
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//
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// 0x4C64F8
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int fileWriteInt32List(File* stream, int* arr, int count)
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{
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for (int index = 0; index < count; index++) {
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// NOTE: Uninline.
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if (_db_fwriteLong(stream, arr[index]) == -1) {
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return -1;
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}
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}
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return 0;
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}
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// NOTE: Not sure about signed/unsigned int/long.
|
|
//
|
|
// 0x4C6550
|
|
int _db_fwriteLongCount(File* stream, int* arr, int count)
|
|
{
|
|
for (int index = 0; index < count; index++) {
|
|
int value = arr[index];
|
|
|
|
// NOTE: Uninline.
|
|
if (fileWriteInt16(stream, (value >> 16) & 0xFFFF) == -1) {
|
|
return -1;
|
|
}
|
|
|
|
// NOTE: Uninline.
|
|
if (fileWriteInt16(stream, value & 0xFFFF) == -1) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// NOTE: Probably uncollapsed 0x4C64F8 or 0x4C6550.
|
|
int fileWriteUInt32List(File* stream, unsigned int* arr, int count)
|
|
{
|
|
return fileWriteInt32List(stream, (int*)arr, count);
|
|
}
|
|
|
|
// 0x4C6628
|
|
int fileNameListInit(const char* pattern, char*** fileNameListPtr, int a3, int a4)
|
|
{
|
|
FileList* fileList = (FileList*)malloc(sizeof(*fileList));
|
|
if (fileList == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
memset(fileList, 0, sizeof(*fileList));
|
|
|
|
XList* xlist = &(fileList->xlist);
|
|
if (!xlistInit(pattern, xlist)) {
|
|
free(fileList);
|
|
return 0;
|
|
}
|
|
|
|
int length = 0;
|
|
if (xlist->fileNamesLength != 0) {
|
|
qsort(xlist->fileNames, xlist->fileNamesLength, sizeof(*xlist->fileNames), _db_list_compare);
|
|
|
|
int fileNamesLength = xlist->fileNamesLength;
|
|
for (int index = 0; index < fileNamesLength - 1; index++) {
|
|
if (compat_stricmp(xlist->fileNames[index], xlist->fileNames[index + 1]) == 0) {
|
|
char* temp = xlist->fileNames[index + 1];
|
|
memmove(&(xlist->fileNames[index + 1]), &(xlist->fileNames[index + 2]), sizeof(*xlist->fileNames) * (xlist->fileNamesLength - index - 1));
|
|
xlist->fileNames[xlist->fileNamesLength - 1] = temp;
|
|
|
|
fileNamesLength--;
|
|
index--;
|
|
}
|
|
}
|
|
|
|
bool isWildcard = *pattern == '*';
|
|
|
|
for (int index = 0; index < fileNamesLength; index += 1) {
|
|
char* name = xlist->fileNames[index];
|
|
char dir[COMPAT_MAX_DIR];
|
|
char fileName[COMPAT_MAX_FNAME];
|
|
char extension[COMPAT_MAX_EXT];
|
|
compat_windows_path_to_native(name);
|
|
compat_splitpath(name, NULL, dir, fileName, extension);
|
|
|
|
if (!isWildcard || *dir == '\0' || (strchr(dir, '\\') == NULL && strchr(dir, '/') == NULL)) {
|
|
// NOTE: Quick and dirty fix to buffer overflow. See RE to
|
|
// understand the problem.
|
|
char path[COMPAT_MAX_PATH];
|
|
snprintf(path, sizeof(path), "%s%s", fileName, extension);
|
|
free(xlist->fileNames[length]);
|
|
xlist->fileNames[length] = compat_strdup(path);
|
|
length++;
|
|
}
|
|
}
|
|
}
|
|
|
|
fileList->next = gFileListHead;
|
|
gFileListHead = fileList;
|
|
|
|
*fileNameListPtr = xlist->fileNames;
|
|
|
|
return length;
|
|
}
|
|
|
|
// 0x4C6868
|
|
void fileNameListFree(char*** fileNameListPtr, int a2)
|
|
{
|
|
if (gFileListHead == NULL) {
|
|
return;
|
|
}
|
|
|
|
FileList* currentFileList = gFileListHead;
|
|
FileList* previousFileList = gFileListHead;
|
|
while (*fileNameListPtr != currentFileList->xlist.fileNames) {
|
|
previousFileList = currentFileList;
|
|
currentFileList = currentFileList->next;
|
|
if (currentFileList == NULL) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (previousFileList == gFileListHead) {
|
|
gFileListHead = currentFileList->next;
|
|
} else {
|
|
previousFileList->next = currentFileList->next;
|
|
}
|
|
|
|
xlistFree(&(currentFileList->xlist));
|
|
|
|
free(currentFileList);
|
|
}
|
|
|
|
// NOTE: This function does nothing. It was probably used to set memory procs
|
|
// for building file name list.
|
|
//
|
|
// 0x4C68B8
|
|
void _db_register_mem(MallocProc* mallocProc, StrdupProc* strdupProc, FreeProc* freeProc)
|
|
{
|
|
}
|
|
|
|
// TODO: Return type should be long.
|
|
//
|
|
// 0x4C68BC
|
|
int fileGetSize(File* stream)
|
|
{
|
|
return xfileGetSize(stream);
|
|
}
|
|
|
|
// 0x4C68C4
|
|
void fileSetReadProgressHandler(FileReadProgressHandler* handler, int size)
|
|
{
|
|
if (handler != NULL && size != 0) {
|
|
gFileReadProgressHandler = handler;
|
|
gFileReadProgressChunkSize = size;
|
|
} else {
|
|
gFileReadProgressHandler = NULL;
|
|
gFileReadProgressChunkSize = 0;
|
|
}
|
|
}
|
|
|
|
// NOTE: This function is called when fallout2.cfg has "hashing" enabled, but
|
|
// it does nothing. It's impossible to guess it's name.
|
|
//
|
|
// 0x4C68E4
|
|
void _db_enable_hash_table_()
|
|
{
|
|
}
|
|
|
|
// 0x4C68E8
|
|
int _db_list_compare(const void* p1, const void* p2)
|
|
{
|
|
return compat_stricmp(*(const char**)p1, *(const char**)p2);
|
|
}
|
|
|
|
} // namespace fallout
|