96 lines
1.7 KiB
C++
96 lines
1.7 KiB
C++
#include "File.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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long LoadFileToMemory(const char *file_path, unsigned char **file_buffer)
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{
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long returned_size = -1;
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FILE *file = fopen(file_path, "rb");
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if (file != NULL)
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{
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if (!fseek(file, 0, SEEK_END))
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{
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const long file_size = ftell(file);
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if (file_size >= 0)
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{
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rewind(file);
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*file_buffer = (unsigned char*)malloc(file_size);
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if (*file_buffer != NULL)
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{
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if (fread(*file_buffer, file_size, 1, file) == 1)
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returned_size = file_size;
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}
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}
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}
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fclose(file);
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}
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return returned_size;
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}
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unsigned short File_ReadBE16(FILE *stream)
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{
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unsigned char bytes[2];
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fread(bytes, 2, 1, stream);
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return (bytes[0] << 8) | bytes[1];
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}
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unsigned long File_ReadBE32(FILE *stream)
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{
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unsigned char bytes[4];
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fread(bytes, 4, 1, stream);
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return (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3];
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}
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unsigned short File_ReadLE16(FILE *stream)
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{
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unsigned char bytes[2];
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fread(bytes, 2, 1, stream);
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return (bytes[1] << 8) | bytes[0];
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}
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unsigned long File_ReadLE32(FILE *stream)
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{
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unsigned char bytes[4];
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fread(bytes, 4, 1, stream);
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return (bytes[3] << 24) | (bytes[2] << 16) | (bytes[1] << 8) | bytes[0];
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}
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void File_WriteBE16(unsigned short value, FILE *stream)
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{
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for (unsigned int i = 2; i-- != 0;)
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fputc(value >> (8 * i), stream);
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}
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void File_WriteBE32(unsigned long value, FILE *stream)
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{
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for (unsigned int i = 4; i-- != 0;)
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fputc(value >> (8 * i), stream);
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}
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void File_WriteLE16(unsigned short value, FILE *stream)
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{
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for (unsigned int i = 0; i < 2; ++i)
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fputc(value >> (8 * i), stream);
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}
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void File_WriteLE32(unsigned long value, FILE *stream)
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{
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for (unsigned int i = 0; i < 4; ++i)
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fputc(value >> (8 * i), stream);
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}
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