Method GL_ScreenShot_f

client/src/main/java/jake2/client/render/fast/Misc.java:122–190

GL_ScreenShot_f

()

	 * GL_ScreenShot_f
	 */
	public void GL_ScreenShot_f() {
	    StringBuffer sb = new StringBuffer(FS.getWriteDir() + "/scrshot/jake00.tga");
	    FS.CreatePath(sb.toString());
	    File file = new File(sb.toString());
	    // find a valid file name
	    int i = 0; int offset = sb.length() - 6;
	    while (file.exists() && i++ < 100) {
	        sb.setCharAt(offset, (char) ((i/10) + '0'));
	        sb.setCharAt(offset + 1, (char) ((i%10) + '0'));
	        file = new File(sb.toString());
        }
	    if (i == 100) {
		    Com.Printf(Defines.PRINT_ALL, "Clean up your screenshots\n");
		    return;
	    }
	    
	    try {
	        RandomAccessFile out = new RandomAccessFile(file, "rw");
	        FileChannel ch = out.getChannel();
	        int fileLength = TGA_HEADER_SIZE + vid.getWidth() * vid.getHeight() * 3;
	        out.setLength(fileLength);
	        MappedByteBuffer image = ch.map(FileChannel.MapMode.READ_WRITE, 0,
	                fileLength);
	        
	        // write the TGA header
	        image.put(0, (byte) 0).put(1, (byte) 0);
	        image.put(2, (byte) 2); // uncompressed type
	        image.put(12, (byte) (vid.getWidth() & 0xFF)); // vid.getWidth()
	        image.put(13, (byte) (vid.getWidth() >> 8)); // vid.getWidth()
	        image.put(14, (byte) (vid.getHeight() & 0xFF)); // vid.getHeight()
	        image.put(15, (byte) (vid.getHeight() >> 8)); // vid.getHeight()
	        image.put(16, (byte) 24); // pixel size
	        
	        // go to image data position
	        image.position(TGA_HEADER_SIZE);
	        
	        
	        // change pixel alignment for reading
	        if (vid.getWidth() % 4 != 0) {
	            gl.glPixelStorei(GL_PACK_ALIGNMENT, 1); 
	        }
	        
	        // OpenGL 1.2+ supports the GL_BGR color format
	        // check the GL_VERSION to use the TARGA BGR order if possible
	        // e.g.: 1.5.2 NVIDIA 66.29
	        if (gl_config.getOpenGLVersion() >= 1.2f) {
	            // read the BGR values into the image buffer
	            gl.glReadPixels(0, 0, vid.getWidth(), vid.getHeight(), GL_BGR, GL_UNSIGNED_BYTE, image);
	        } else {
	            // read the RGB values into the image buffer
	            gl.glReadPixels(0, 0, vid.getWidth(), vid.getHeight(), GL_RGB, GL_UNSIGNED_BYTE, image);
		        // flip RGB to BGR
		        byte tmp;
		        for (i = TGA_HEADER_SIZE; i < fileLength; i += 3) {
		            tmp = image.get(i);
		            image.put(i, image.get(i + 2));
		            image.put(i + 2, tmp);
		        }