yuzu/src/video_core/utils.cpp

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#include <stdio.h>
#include <string.h>

#include "video_core/utils.h"

namespace VideoCore {
	
	/**
	 * Dumps a texture to TGA
	 * @param filename String filename to dump texture to
	 * @param width Width of texture in pixels
	 * @param height Height of texture in pixels
	 * @param raw_data Raw RGBA8 texture data to dump
	 * @todo This should be moved to some general purpose/common code
	 */
	void DumpTGA(std::string filename, int width, int height, u8* raw_data) {
		TGAHeader hdr;
		FILE* fout;
		u8 r, g, b;
		
		memset(&hdr, 0, sizeof(hdr));
		hdr.datatypecode = 2; // uncompressed RGB
		hdr.bitsperpixel = 24; // 24 bpp
		hdr.width = width;
		hdr.height = height;
		
		fout = fopen(filename.c_str(), "wb");
		fwrite(&hdr, sizeof(TGAHeader), 1, fout);
		for (int i = 0; i < height; i++) {
			for (int j = 0; j < width; j++) {
				b = raw_data[(3 * (i * width)) + (3 * j) + 0];
				g = raw_data[(3 * (i * width)) + (3 * j) + 1];
				r = raw_data[(3 * (i * width)) + (3 * j) + 2];
				putc(b, fout);
				putc(g, fout);
				putc(r, fout);
			}
		}
		fclose(fout);
	}
	
} // namespace