Update Files

Kha/Kinc/Sources/kinc/io/filewriter.h

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