GifImageFactory.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
//
// Created by dervisdev on 1/12/2023.
//
#pragma once
 
#include "AUI/Common/AByteBufferView.h"
#include "AUI/Image/IAnimatedImageFactory.h"
 
typedef struct nsgif nsgif_t;
 
class GifImageFactory : public IAnimatedImageFactory {
public:
   explicit GifImageFactory(AByteBufferView buf);
 
   ~GifImageFactory();
 
   AImage provideImage(const glm::ivec2& size) override;
 
   bool isNewImageAvailable() override;
 
   glm::ivec2 getSizeHint() override;
 
   bool hasAnimationFinished() override;
 
private:
   AByteBuffer mGifData;
   std::chrono::time_point<std::chrono::high_resolution_clock> mLastFrameStarted;
   size_t mCurrentFrameIndex = -1;
   size_t mFrameCount;
   size_t mWidth = 0;
   size_t mHeight = 0;
   uint32_t mCurrentFrameLength;
   bool mAnimationFinished = false;
   nsgif_t* mContext;
   uint8_t* mLastFrameBuffer = nullptr;
 
   AImage fetchImage();
};

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