forked from mirrors/gecko-dev
		
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			<!-- Please describe your changes on the following line: --> This PR provides the base for implementing WebGL extensions. It comes with the following ones already implemented and passing all related WebGL conformance tests: - OES_texture_float - OES_texture_float_linear - OES_texture_half_float - OES_texture_half_float_linear - OES_vertex_array_object I'll submit other extensions like compressed textures in a separate PR to ease the review process. I included the 5 extensions in this PR because it's easier to show/review how the WebGL extension base works. To pass all OES_texture_float_xxx tests I had to add some missing format conversions in WebGLRenderingContext.rs --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [ ] These changes fix #__ (github issue number if applicable). <!-- Either: --> - [x] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: b0976566fb9c79f7dc67b2ac808eb50ef4ad653f --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : e829ac1c4a43670d9931be4fafa4572d0c527210
		
			
				
	
	
		
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			26 lines
		
	
	
	
		
			904 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this
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|  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
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| use dom::bindings::js::Root;
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| use dom::bindings::reflector::DomObject;
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| use dom::bindings::trace::JSTraceable;
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| use dom::webglrenderingcontext::WebGLRenderingContext;
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| use super::WebGLExtensions;
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| 
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| /// Trait implemented by WebGL extensions.
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| pub trait WebGLExtension: Sized where Self::Extension: DomObject + JSTraceable {
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|     type Extension;
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| 
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|     /// Creates the DOM object of the WebGL extension.
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|     fn new(ctx: &WebGLRenderingContext) -> Root<Self::Extension>;
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| 
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|     /// Checks if the extension is supported.
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|     fn is_supported(ext: &WebGLExtensions) -> bool;
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| 
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|     /// Enable the extension.
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|     fn enable(ext: &WebGLExtensions);
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| 
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|     /// Name of the WebGL Extension.
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|     fn name() -> &'static str;
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| }
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