bool write_bitmap(const char *filename, const char *buffer, int width, int height);

#include <stdio.h>
#include "bmpwriter.h"

// stuff from wingdi.h
typedef unsigned short WORD;
typedef unsigned int DWORD;
#define FAR
#pragma pack(push, 2)
typedef struct tagBITMAPFILEHEADER {
        WORD    bfType;
        DWORD   bfSize;
        WORD    bfReserved1;
        WORD    bfReserved2;
        DWORD   bfOffBits;
} BITMAPFILEHEADER, FAR *LPBITMAPFILEHEADER, *PBITMAPFILEHEADER;
typedef struct tagBITMAPCOREHEADER {
        DWORD   bcSize;                 /* used to get to color table */
        WORD    bcWidth;
        WORD    bcHeight;
        WORD    bcPlanes;
        WORD    bcBitCount;
} BITMAPCOREHEADER, FAR *LPBITMAPCOREHEADER, *PBITMAPCOREHEADER;
#pragma pack(pop)

bool write_bitmap(const char *filename, const char *buffer, int width, int height) {
	BITMAPFILEHEADER bfh = { 0x4D42, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPCOREHEADER) + width * height * 3, 0, 0, sizeof(BITMAPFILEHEADER) + sizeof(BITMAPCOREHEADER) };
	BITMAPCOREHEADER bch = { sizeof(BITMAPCOREHEADER), width, height, 1, 24 };
	FILE *pf = fopen(filename, "wb");
	if (pf == NULL) {
		return false;
	}
	else {
		fwrite(&bfh, sizeof(BITMAPFILEHEADER), 1, pf);
		fwrite(&bch, sizeof(BITMAPCOREHEADER), 1, pf);
		fwrite(buffer, 3 * width, height, pf);
		fclose(pf);
		return true;
	}
}