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call window.gl() once

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This commit is contained in:
Paul Rouget 2019-04-05 16:01:31 +02:00
parent 1ff56aa84f
commit 5f5a3393eb
1 changed files with 22 additions and 14 deletions
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36
components/compositing/compositor.rs
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@ -1206,22 +1206,9 @@ impl<Window: WindowMethods> IOCompositor<Window> {
&self.embedder_coordinates.framebuffer.to_untyped(),
);
self.window.gl().clear_color(0.0, 0.0, 0.0, 0.0);
self.window.gl().clear(gleam::gl::COLOR_BUFFER_BIT);
let viewport = self.embedder_coordinates.get_flipped_viewport();
self.window.gl().scissor(
viewport.origin.x,
viewport.origin.y,
viewport.size.width,
viewport.size.height,
);
self.window.gl().clear_color(1.0, 1.0, 1.0, 1.0);
self.window.gl().enable(gleam::gl::SCISSOR_TEST);
self.window.gl().clear(gleam::gl::COLOR_BUFFER_BIT);
self.window.gl().disable(gleam::gl::SCISSOR_TEST);
// Paint the scene.
// TODO(gw): Take notice of any errors the renderer returns!
self.clear_background();
self.webrender.render(size).ok();
},
);
@ -1328,6 +1315,27 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
}
fn clear_background(&self) {
let gl = self.window.gl();
// Make framebuffer fully transparent.
gl.clear_color(0.0, 0.0, 0.0, 0.0);
gl.clear(gleam::gl::COLOR_BUFFER_BIT);
// Make the viewport white.
let viewport = self.embedder_coordinates.get_flipped_viewport();
gl.scissor(
viewport.origin.x,
viewport.origin.y,
viewport.size.width,
viewport.size.height,
);
gl.clear_color(1.0, 1.0, 1.0, 1.0);
gl.enable(gleam::gl::SCISSOR_TEST);
gl.clear(gleam::gl::COLOR_BUFFER_BIT);
gl.disable(gleam::gl::SCISSOR_TEST);
}
fn get_root_pipeline_id(&self) -> Option<PipelineId> {
self.root_pipeline.as_ref().map(|pipeline| pipeline.id)
}