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webgl: Emulate some renderbuffer formats in non-GLES.

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This commit is contained in:
Josh Matthews 2018-08-01 15:40:53 -04:00
parent 3334e477c1
commit 03eb7e4dd2
11 changed files with 176 additions and 53 deletions
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19
components/script/dom/webglrenderingcontext.rs
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@ -70,6 +70,12 @@ use std::cmp;
use std::ptr::{self, NonNull};
use webrender_api;
pub fn is_gles() -> bool {
// TODO: align this with the actual kind of graphics context in use, rather than
// making assumptions based on platform
cfg!(any(target_os = "android", target_os = "ios"))
}
type ImagePixelResult = Result<(Vec<u8>, Size2D<i32>, bool), ()>;
pub const MAX_UNIFORM_AND_ATTRIBUTE_LEN: usize = 256;
@ -2673,10 +2679,17 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
return NullValue();
}
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetRenderbufferParameter(target, pname, sender));
let result = if pname == constants::RENDERBUFFER_INTERNAL_FORMAT {
let rb = self.bound_renderbuffer.get().unwrap();
rb.internal_format() as i32
} else {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetRenderbufferParameter(target, pname, sender));
receiver.recv().unwrap()
};
Int32Value(receiver.recv().unwrap())
Int32Value(result)
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9