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Use byte channels to send textures to the WebGL thread

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This commit is contained in:
Anthony Ramine 2018-09-08 13:05:05 +02:00
parent 408e540c55
commit 4bd8efa49e
3 changed files with 38 additions and 17 deletions
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31
components/canvas/webgl_thread.rs
View file

@ -834,11 +834,32 @@ impl WebGLImpl {
WebGLCommand::SetViewport(x, y, width, height) => {
ctx.gl().viewport(x, y, width, height);
}
WebGLCommand::TexImage2D(target, level, internal, width, height, format, data_type, ref data) =>
ctx.gl().tex_image_2d(target, level, internal, width, height,
/*border*/0, format, data_type, Some(data)),
WebGLCommand::TexSubImage2D(target, level, xoffset, yoffset, x, y, width, height, ref data) =>
ctx.gl().tex_sub_image_2d(target, level, xoffset, yoffset, x, y, width, height, data),
WebGLCommand::TexImage2D(target, level, internal, width, height, format, data_type, ref chan) => {
ctx.gl().tex_image_2d(
target,
level,
internal,
width,
height,
0,
format,
data_type,
Some(&chan.recv().unwrap()),
)
}
WebGLCommand::TexSubImage2D(target, level, xoffset, yoffset, x, y, width, height, ref chan) => {
ctx.gl().tex_sub_image_2d(
target,
level,
xoffset,
yoffset,
x,
y,
width,
height,
&chan.recv().unwrap(),
)
}
WebGLCommand::DrawingBufferWidth(ref sender) =>
sender.send(ctx.borrow_draw_buffer().unwrap().size().width).unwrap(),
WebGLCommand::DrawingBufferHeight(ref sender) =>

4
components/canvas_traits/webgl.rs
View file

@ -252,8 +252,8 @@ pub enum WebGLCommand {
VertexAttribPointer(u32, i32, u32, bool, i32, u32),
VertexAttribPointer2f(u32, i32, bool, i32, u32),
SetViewport(i32, i32, i32, i32),
TexImage2D(u32, i32, i32, i32, i32, u32, u32, ByteBuf),
TexSubImage2D(u32, i32, i32, i32, i32, i32, u32, u32, ByteBuf),
TexImage2D(u32, i32, i32, i32, i32, u32, u32, IpcBytesReceiver),
TexSubImage2D(u32, i32, i32, i32, i32, i32, u32, u32, IpcBytesReceiver),
DrawingBufferWidth(WebGLSender<i32>),
DrawingBufferHeight(WebGLSender<i32>),
Finish(WebGLSender<()>),

20
components/script/dom/webglrenderingcontext.rs
View file

@ -966,17 +966,17 @@ impl WebGLRenderingContext {
let internal_format = self.extension_manager.get_effective_tex_internal_format(format, data_type);
// TODO(emilio): convert colorspace if requested
let msg = WebGLCommand::TexImage2D(
let (sender, receiver) = ipc::bytes_channel().unwrap();
self.send_command(WebGLCommand::TexImage2D(
target.as_gl_constant(),
level as i32,
internal_format as i32,
width as i32, height as i32,
format,
data_type,
pixels.into(),
);
self.send_command(msg);
receiver,
));
sender.send(&pixels).unwrap();
if let Some(fb) = self.bound_framebuffer.get() {
fb.invalidate_texture(&*texture);
@ -1021,7 +1021,8 @@ impl WebGLRenderingContext {
self.send_command(WebGLCommand::PixelStorei(constants::UNPACK_ALIGNMENT, unpacking_alignment as i32));
// TODO(emilio): convert colorspace if requested
let msg = WebGLCommand::TexSubImage2D(
let (sender, receiver) = ipc::bytes_channel().unwrap();
self.send_command(WebGLCommand::TexSubImage2D(
target.as_gl_constant(),
level as i32,
xoffset,
@ -1030,10 +1031,9 @@ impl WebGLRenderingContext {
height as i32,
format.as_gl_constant(),
data_type.as_gl_constant(),
pixels.into(),
);
self.send_command(msg);
receiver,
));
sender.send(&pixels).unwrap();
}
fn get_gl_extensions(&self) -> String {