tumbledemerald-legacy/tools/bin2c/bin2c.c

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2022-05-19 19:14:13 +02:00
// Copyright(c) 2015-2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#ifdef _MSC_VER
#define FATAL_ERROR(format, ...) \
do \
{ \
fprintf(stderr, format, __VA_ARGS__); \
exit(1); \
} while (0)
#else
#define FATAL_ERROR(format, ...) \
do \
{ \
fprintf(stderr, format, ##__VA_ARGS__); \
exit(1); \
} while (0)
#endif // _MSC_VER
unsigned char *ReadWholeFile(char *path, int *size)
{
FILE *fp = fopen(path, "rb");
if (fp == NULL)
FATAL_ERROR("Failed to open \"%s\" for reading.\n", path);
fseek(fp, 0, SEEK_END);
*size = ftell(fp);
unsigned char *buffer = malloc(*size);
if (buffer == NULL)
FATAL_ERROR("Failed to allocate memory for reading \"%s\".\n", path);
rewind(fp);
if (fread(buffer, *size, 1, fp) != 1)
FATAL_ERROR("Failed to read \"%s\".\n", path);
fclose(fp);
return buffer;
}
int ExtractData(unsigned char *buffer, int offset, int size)
{
switch (size)
{
case 1:
return buffer[offset];
case 2:
return (buffer[offset + 1] << 8)
| buffer[offset];
case 4:
return (buffer[offset + 3] << 24)
| (buffer[offset + 2] << 16)
| (buffer[offset + 1] << 8)
| buffer[offset];
default:
FATAL_ERROR("Invalid size passed to ExtractData.\n");
}
}
int main(int argc, char **argv)
{
if (argc < 3)
FATAL_ERROR("Usage: bin2c INPUT_FILE VAR_NAME [OPTIONS...]\n");
int fileSize;
unsigned char *buffer = ReadWholeFile(argv[1], &fileSize);
char *var_name = argv[2];
int col = 1;
int pad = 0;
int size = 1;
bool isSigned = false;
bool isStatic = false;
bool isDecimal = false;
for (int i = 3; i < argc; i++)
{
if (!strcmp(argv[i], "-col"))
{
i++;
if (i >= argc)
FATAL_ERROR("Missing argument after '-col'.\n");
col = atoi(argv[i]);
}
else if (!strcmp(argv[i], "-pad"))
{
i++;
if (i >= argc)
FATAL_ERROR("Missing argument after '-pad'.\n");
pad = atoi(argv[i]);
}
else if (!strcmp(argv[i], "-size"))
{
i++;
if (i >= argc)
FATAL_ERROR("Missing argument after '-size'.\n");
size = atoi(argv[i]);
if (size != 1 && size != 2 && size != 4)
FATAL_ERROR("Size must be 1, 2, or 4.\n");
}
else if (!strcmp(argv[i], "-signed"))
{
isSigned = true;
isDecimal = true;
}
else if (!strcmp(argv[i], "-static"))
{
isStatic = true;
}
else if (!strcmp(argv[i], "-decimal"))
{
isDecimal = true;
}
else
{
FATAL_ERROR("Unrecognized option '%s'.\n", argv[i]);
}
}
if ((fileSize & (size - 1)) != 0)
FATAL_ERROR("Size %d doesn't evenly divide file size %d.\n", size, fileSize);
printf("// Generated file. Do not edit.\n\n");
if (isStatic)
printf("static ");
printf("const ");
if (isSigned)
printf("s%d ", 8 * size);
else
printf("u%d ", 8 * size);
printf("%s[] =\n{", var_name);
int count = fileSize / size;
int offset = 0;
for (int i = 0; i < count; i++)
{
if (i % col == 0)
printf("\n ");
int data = ExtractData(buffer, offset, size);
offset += size;
if (isDecimal)
{
if (isSigned)
printf("%*d, ", pad, data);
else
printf("%*uu, ", pad, data);
}
else
{
printf("%#*xu, ", pad, data);
}
}
printf("\n};\n");
return 0;
}