mirror of
				https://github.com/RGBCube/serenity
				synced 2025-10-31 03:12:44 +00:00 
			
		
		
		
	 7449c1b27f
			
		
	
	
		7449c1b27f
		
	
	
	
	
		
			
			The ImageDecoder service now returns a list of image frames, each with a duration value. The code for in-process image decoding is removed from LibWeb, an all image decode requests are sent out-of-process to ImageDecoder. :^) This won't scale super well to very long and/or large animations, but we can work on improving that separately. The main goal here is simply to stop doing any image decoding inside LibWeb. Fixes #5165.
		
			
				
	
	
		
			89 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			89 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
 | |
|  * All rights reserved.
 | |
|  *
 | |
|  * Redistribution and use in source and binary forms, with or without
 | |
|  * modification, are permitted provided that the following conditions are met:
 | |
|  *
 | |
|  * 1. Redistributions of source code must retain the above copyright notice, this
 | |
|  *    list of conditions and the following disclaimer.
 | |
|  *
 | |
|  * 2. Redistributions in binary form must reproduce the above copyright notice,
 | |
|  *    this list of conditions and the following disclaimer in the documentation
 | |
|  *    and/or other materials provided with the distribution.
 | |
|  *
 | |
|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 | |
|  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 | |
|  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 | |
|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 | |
|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 | |
|  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 | |
|  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 | |
|  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 | |
|  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | |
|  */
 | |
| 
 | |
| #pragma once
 | |
| 
 | |
| #include <LibWeb/Loader/Resource.h>
 | |
| 
 | |
| namespace Web {
 | |
| 
 | |
| class ImageResource final : public Resource {
 | |
|     friend class Resource;
 | |
| 
 | |
| public:
 | |
|     virtual ~ImageResource() override;
 | |
| 
 | |
|     struct Frame {
 | |
|         RefPtr<Gfx::Bitmap> bitmap;
 | |
|         size_t duration { 0 };
 | |
|     };
 | |
| 
 | |
|     const Gfx::Bitmap* bitmap(size_t frame_index = 0) const;
 | |
|     int frame_duration(size_t frame_index) const;
 | |
|     size_t frame_count() const
 | |
|     {
 | |
|         decode_if_needed();
 | |
|         return m_decoded_frames.size();
 | |
|     }
 | |
|     bool is_animated() const
 | |
|     {
 | |
|         decode_if_needed();
 | |
|         return m_animated;
 | |
|     }
 | |
|     size_t loop_count() const
 | |
|     {
 | |
|         decode_if_needed();
 | |
|         return m_loop_count;
 | |
|     }
 | |
| 
 | |
|     void update_volatility();
 | |
| 
 | |
| private:
 | |
|     explicit ImageResource(const LoadRequest&);
 | |
| 
 | |
|     void decode_if_needed() const;
 | |
| 
 | |
|     mutable bool m_animated { false };
 | |
|     mutable int m_loop_count { 0 };
 | |
|     mutable Vector<Frame> m_decoded_frames;
 | |
|     mutable bool m_has_attempted_decode { false };
 | |
| };
 | |
| 
 | |
| class ImageResourceClient : public ResourceClient {
 | |
| public:
 | |
|     virtual ~ImageResourceClient();
 | |
| 
 | |
|     virtual bool is_visible_in_viewport() const { return false; }
 | |
| 
 | |
| protected:
 | |
|     ImageResource* resource() { return static_cast<ImageResource*>(ResourceClient::resource()); }
 | |
|     const ImageResource* resource() const { return static_cast<const ImageResource*>(ResourceClient::resource()); }
 | |
| 
 | |
| private:
 | |
|     virtual Resource::Type client_type() const override { return Resource::Type::Image; }
 | |
| };
 | |
| 
 | |
| }
 |