/**
 * ShaderShark
 * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include <iostream>

#include <Magick++.h>

#include "ImageLoader.h"
#include "AllocatedBuffer.h"

ImageLoader::ImageBuffer* ImageLoader::loadImage(const Buffer& input) {
	Magick::Blob inputBlob(input.getData(), input.getSize());
	Magick::Image image(inputBlob);
	// Magick::Image image("magick:LOGO");
	// Magick::Image image("magick:WIZARD");
	// Magick::Image image("https://.../remote-image.png");
	// Magick::Image image("x:root"); // whole desktop
	// Magick::Image image("x:0x6a0001c"); // single window, use e.g. xwininfo

	// Magick::PixelPacket* parsedPixels = parsedImage.getPixels(
	//     0, 0, parsedImage.size().width(), parsedImage.size().height());
	
	Magick::Blob outputBlob;
	image.magick("RGBA");
	image.depth(8); // TODO: pass more bits to OpenGL?
	image.write(&outputBlob);

	ImageBuffer* outputBuffer = new ImageBuffer(
			(void*) outputBlob.data(),
			outputBlob.length(),
			image.size().width(),
			image.size().height());

	return outputBuffer;
}