133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
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#pragma once
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#include <kinc/global.h>
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#include <stdbool.h>
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/*! \file filewriter.h
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\brief Provides an API very similar to fwrite and friends but uses a directory that can actually used for persistent file storage. This can later be read
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using the kinc_file_reader-functions and KINC_FILE_TYPE_SAVE.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct kinc_file_writer {
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void *file;
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const char *filename;
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bool mounted;
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} kinc_file_writer_t;
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/// <summary>
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/// Opens a file for writing.
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/// </summary>
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/// <param name="reader">The writer to initialize for writing</param>
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/// <param name="filepath">A filepath to identify a file</param>
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/// <returns>Whether the file could be opened</returns>
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KINC_FUNC bool kinc_file_writer_open(kinc_file_writer_t *writer, const char *filepath);
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/// <summary>
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/// Writes data to a file starting from the current writing-position and increases the writing-position accordingly.
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/// </summary>
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/// <param name="reader">The writer to write to</param>
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/// <param name="data">A pointer to read the data from</param>
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/// <param name="size">The amount of data to write in bytes</param>
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KINC_FUNC void kinc_file_writer_write(kinc_file_writer_t *writer, void *data, int size);
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/// <summary>
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/// Closes a file.
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/// </summary>
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/// <param name="reader">The file to close</param>
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KINC_FUNC void kinc_file_writer_close(kinc_file_writer_t *writer);
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#ifdef KINC_IMPLEMENTATION_IO
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#define KINC_IMPLEMENTATION
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#endif
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#ifdef KINC_IMPLEMENTATION
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#if !defined(KINC_CONSOLE)
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#include "filewriter.h"
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#undef KINC_IMPLEMENTATION
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#include <kinc/error.h>
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#include <kinc/log.h>
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#include <kinc/system.h>
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#define KINC_IMPLEMENTATION
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#include <stdio.h>
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#include <string.h>
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#if defined(KINC_WINDOWS)
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#include <kinc/backend/MiniWindows.h>
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#endif
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#if defined(KINC_PS4) || defined(KINC_SWITCH)
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#define MOUNT_SAVES
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bool mountSaveData(bool);
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void unmountSaveData();
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#endif
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bool kinc_file_writer_open(kinc_file_writer_t *writer, const char *filepath) {
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writer->file = NULL;
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writer->mounted = false;
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#ifdef MOUNT_SAVES
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if (!mountSaveData(true)) {
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return false;
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}
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writer->mounted = true;
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#endif
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char path[1001];
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strcpy(path, kinc_internal_save_path());
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strcat(path, filepath);
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#ifdef KINC_WINDOWS
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wchar_t wpath[MAX_PATH];
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MultiByteToWideChar(CP_UTF8, 0, path, -1, wpath, MAX_PATH);
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writer->file = CreateFileW(wpath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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#else
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writer->file = fopen(path, "wb");
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#endif
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if (writer->file == NULL) {
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kinc_log(KINC_LOG_LEVEL_WARNING, "Could not open file %s.", filepath);
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return false;
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}
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return true;
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}
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void kinc_file_writer_close(kinc_file_writer_t *writer) {
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if (writer->file != NULL) {
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#ifdef KINC_WINDOWS
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CloseHandle(writer->file);
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#else
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fclose((FILE *)writer->file);
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#endif
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writer->file = NULL;
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}
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#ifdef MOUNT_SAVES
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if (writer->mounted) {
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writer->mounted = false;
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unmountSaveData();
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}
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#endif
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}
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void kinc_file_writer_write(kinc_file_writer_t *writer, void *data, int size) {
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#ifdef KINC_WINDOWS
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DWORD written = 0;
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WriteFile(writer->file, data, (DWORD)size, &written, NULL);
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#else
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fwrite(data, 1, size, (FILE *)writer->file);
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#endif
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}
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#endif
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#endif
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#ifdef __cplusplus
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}
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#endif
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