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Auto merge of #9107 - ecoal95:webgl-uniforms-and-nits, r=simartin

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webgl: Track the current program, implement some uniform functions, and nits

Was done while implementing sequence arguments.

Depends on #9056.

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This commit is contained in:
bors-servo 2016-01-13 22:14:59 +05:30
commit c13e84010d
8 changed files with 196 additions and 47 deletions
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14
components/canvas/webgl_paint_thread.rs
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@ -46,6 +46,8 @@ impl WebGLPaintThread {
/// NB: Not gl-related validations (names, lengths, accepted parameters...) are
/// done in the corresponding DOM interfaces
pub fn handle_webgl_message(&self, message: CanvasWebGLMsg) {
debug!("WebGL message: {:?}", message);
match message {
CanvasWebGLMsg::GetContextAttributes(sender) =>
self.context_attributes(sender),
@ -157,8 +159,10 @@ impl WebGLPaintThread {
gl::bind_texture(target, id),
CanvasWebGLMsg::LinkProgram(program_id) =>
gl::link_program(program_id),
CanvasWebGLMsg::Uniform4fv(uniform_id, data) =>
gl::uniform_4f(uniform_id, data[0], data[1], data[2], data[3]),
CanvasWebGLMsg::Uniform1f(uniform_id, x) =>
gl::uniform_1f(uniform_id, x),
CanvasWebGLMsg::Uniform4f(uniform_id, x, y, z, w) =>
gl::uniform_4f(uniform_id, x, y, z, w),
CanvasWebGLMsg::UseProgram(program_id) =>
gl::use_program(program_id),
CanvasWebGLMsg::VertexAttrib(attrib_id, x, y, z, w) =>
@ -179,8 +183,9 @@ impl WebGLPaintThread {
self.send_drawing_buffer_height(sender),
}
// FIXME: Convert to `debug_assert!` once tests are run with debug assertions
assert!(gl::get_error() == gl::NO_ERROR);
// FIXME: Use debug_assertions once tests are run with them
let error = gl::get_error();
assert!(error == gl::NO_ERROR, "Unexpected WebGL error: 0x{:x} ({})", error, error);
}
/// Creates a new `WebGLPaintThread` and returns the out-of-process sender and the in-process
@ -297,6 +302,7 @@ impl WebGLPaintThread {
} else {
Some(unsafe { NonZero::new(program) })
};
chan.send(program).unwrap();
}