Targa.h

#pragma once
#include <stdio.h>

class STGA
{
public:
    STGA()
    {
        data = (unsigned char*)0;
        width = 0;
        height = 0;
        byteCount = 0;
    }

	~STGA() { delete[] data; data = 0; }

	void destroy() { delete[] data; data = 0; }

	int width;
	int height;
	unsigned char byteCount;
	unsigned char* data;


	bool loadTGA(const char *filename)
	{
		STGA & tgaFile = *this;
		
		FILE *file;
		unsigned char type[4];
		unsigned char info[6];

			file = fopen(filename, "rb");

			if (!file)
			return false;

		fread (&type, sizeof (char), 3, file);
		fseek (file, 12, SEEK_SET);
		fread (&info, sizeof (char), 6, file);

		//image type either 2 (color) or 3 (greyscale)
		if (type[1] != 0 || (type[2] != 2 && type[2] != 3))
		{
			fclose(file);
			return false;
		}

		tgaFile.width = info[0] + info[1] * 256;
		tgaFile.height = info[2] + info[3] * 256;
		tgaFile.byteCount = info[4] / 8;

		if (tgaFile.byteCount != 3 && tgaFile.byteCount != 4) {
			fclose(file);
			return false;
		}

		long imageSize = tgaFile.width * tgaFile.height * tgaFile.byteCount;

		//allocate memory for image data
		tgaFile.data = new unsigned char[imageSize];

		//read in image data
		fread(tgaFile.data, sizeof(unsigned char), imageSize, file);

		//close file
		fclose(file);

		return true;
	}
};