ImageLoader.h
author František Kučera <franta-hg@frantovo.cz>
Sat, 23 Dec 2023 23:10:41 +0100
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set scaling filters according to the texture file extended attributes (xattr: shader-shark.texture.mag-filter = linear | nearest)
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/**
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 * ShaderShark
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 * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, version 3 of the License.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#pragma once
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#include <string.h>
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#include "Buffer.h"
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#include "AllocatedBuffer.h"
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class ImageLoader {
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public:
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	class ImageBuffer : public AllocatedBuffer {
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	public:
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		int width;
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		int height;
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		ImageBuffer(void* buffer, const size_t size,
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				const int width, const int height) :
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				AllocatedBuffer(width * height * 4),
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				width(width), height(height) {
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			if (size == width * height * 4) memcpy(data, buffer, size);
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			else throw std::invalid_argument("invalid image size");
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		}
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	};
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	ImageBuffer* loadImage(const Buffer& inputBuffer);
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};