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Add support for WebGL2 RASTERIZER_DISCARD enum.

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Add support for the `RASTERIZER_DISCARD` enum for the WebGL2 version
of the `Enable`, `Disable` and `IsEnabled` functions.

See https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
This commit is contained in:
Mátyás Mustoha 2020-01-13 12:21:17 +01:00
parent 3eec5f697f
commit 500b36b669
4 changed files with 26 additions and 40 deletions
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25
components/script/dom/webgl2renderingcontext.rs
View file

@ -71,6 +71,7 @@ pub struct WebGL2RenderingContext {
texture_pack_row_length: Cell<usize>,
texture_pack_skip_pixels: Cell<usize>,
texture_pack_skip_rows: Cell<usize>,
enable_rasterizer_discard: Cell<bool>,
}
fn typedarray_elem_size(typeid: Type) -> usize {
@ -124,6 +125,7 @@ impl WebGL2RenderingContext {
texture_pack_row_length: Cell::new(0),
texture_pack_skip_pixels: Cell::new(0),
texture_pack_skip_rows: Cell::new(0),
enable_rasterizer_discard: Cell::new(false),
})
}
@ -991,12 +993,24 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
/// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
fn Enable(&self, cap: u32) {
self.base.Enable(cap)
match cap {
constants::RASTERIZER_DISCARD => {
self.enable_rasterizer_discard.set(true);
self.base.send_command(WebGLCommand::Enable(cap));
},
_ => self.base.Enable(cap),
}
}
/// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
fn Disable(&self, cap: u32) {
self.base.Disable(cap)
match cap {
constants::RASTERIZER_DISCARD => {
self.enable_rasterizer_discard.set(false);
self.base.send_command(WebGLCommand::Disable(cap));
},
_ => self.base.Disable(cap),
}
}
/// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
@ -1200,9 +1214,12 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
}
// TODO: We could write this without IPC, recording the calls to `enable` and `disable`.
/// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
/// https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
fn IsEnabled(&self, cap: u32) -> bool {
self.base.IsEnabled(cap)
match cap {
constants::RASTERIZER_DISCARD => self.enable_rasterizer_discard.get(),
_ => self.base.IsEnabled(cap),
}
}
/// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.6