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Use pipes for drawing interface

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This commit is contained in:
Eric Holk 2012-07-13 00:12:58 -07:00
parent 41a68d1813
commit 8f1f4f479d
3 changed files with 40 additions and 33 deletions
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10
src/servo/gfx/pngsink.rs
View file

@ -30,16 +30,16 @@ import layout::display_list::display_list;
type PngSink = chan<Msg>;
enum Msg {
BeginDrawing(chan<AzDrawTargetRef>),
Draw(chan<AzDrawTargetRef>, AzDrawTargetRef),
BeginDrawing(pipes::chan<AzDrawTargetRef>),
Draw(pipes::chan<AzDrawTargetRef>, AzDrawTargetRef),
Exit
}
impl PngSink of Sink for chan<Msg> {
fn begin_drawing(next_dt: chan<AzDrawTargetRef>) {
fn begin_drawing(+next_dt: pipes::chan<AzDrawTargetRef>) {
self.send(BeginDrawing(next_dt))
}
fn draw(next_dt: chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef) {
fn draw(+next_dt: pipes::chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef) {
self.send(Draw(next_dt, draw_me))
}
fn add_event_listener(_listener: chan<Event>) {
@ -76,7 +76,7 @@ fn PngSink(output: chan<~[u8]>) -> PngSink {
})
}
fn do_draw(sender: chan<AzDrawTargetRef>,
fn do_draw(sender: pipes::chan<AzDrawTargetRef>,
dt: AzDrawTargetRef,
output: chan<~[u8]>,
cairo_surf: *cairo_surface_t) {

53
src/servo/gfx/renderer.rs
View file

@ -31,38 +31,45 @@ each rendered frame and submit them to be drawn to the display
FIXME: Change this name to Compositor.
"]
iface Sink {
fn begin_drawing(next_dt: comm::chan<AzDrawTargetRef>);
fn draw(next_dt: comm::chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef);
fn begin_drawing(+next_dt: pipes::chan<AzDrawTargetRef>);
fn draw(+next_dt: pipes::chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef);
fn add_event_listener(listener: comm::chan<Event>);
}
fn Renderer<S: Sink send copy>(sink: S) -> comm::chan<Msg> {
task::spawn_listener::<Msg>(|po| {
listen(|draw_target_ch| {
#debug("renderer: beginning rendering loop");
sink.begin_drawing(draw_target_ch);
let (draw_target_ch, draw_target_po) = pipes::stream();
let mut draw_target_ch = draw_target_ch;
let mut draw_target_po = draw_target_po;
loop {
alt po.recv() {
RenderMsg(display_list) {
#debug("renderer: got render request");
let draw_target = draw_target_ch.recv();
#debug("renderer: rendering");
#debug("renderer: beginning rendering loop");
sink.begin_drawing(draw_target_ch);
do util::time::time(~"rendering") {
clear(draw_target);
draw_display_list(draw_target, display_list);
#debug("renderer: returning surface");
sink.draw(draw_target_ch, draw_target);
}
}
ExitMsg(response_ch) {
response_ch.send(());
break;
}
loop {
alt po.recv() {
RenderMsg(display_list) {
#debug("renderer: got render request");
let draw_target = draw_target_po.recv();
let (ch, po) = pipes::stream();
let mut draw_target_ch_ = some(ch);
draw_target_po = po;
#debug("renderer: rendering");
do util::time::time(~"rendering") {
let mut draw_target_ch = none;
draw_target_ch_ <-> draw_target_ch;
let draw_target_ch = option::unwrap(draw_target_ch);
clear(draw_target);
draw_display_list(draw_target, display_list);
#debug("renderer: returning surface");
sink.draw(draw_target_ch, draw_target);
}
}
ExitMsg(response_ch) {
response_ch.send(());
break;
}
}
})
}
})
}

10
src/servo/platform/osmain.rs
View file

@ -21,8 +21,8 @@ import pipes::chan;
type OSMain = comm::chan<Msg>;
enum Msg {
BeginDrawing(comm::chan<AzDrawTargetRef>),
Draw(comm::chan<AzDrawTargetRef>, AzDrawTargetRef),
BeginDrawing(pipes::chan<AzDrawTargetRef>),
Draw(pipes::chan<AzDrawTargetRef>, AzDrawTargetRef),
AddKeyHandler(pipes::chan<()>),
AddEventListener(comm::chan<Event>),
Exit
@ -138,10 +138,10 @@ Implementation to allow the osmain channel to be used as a graphics
sink for the renderer
"]
impl OSMain of Sink for OSMain {
fn begin_drawing(next_dt: comm::chan<AzDrawTargetRef>) {
fn begin_drawing(+next_dt: pipes::chan<AzDrawTargetRef>) {
self.send(BeginDrawing(next_dt))
}
fn draw(next_dt: comm::chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef) {
fn draw(+next_dt: pipes::chan<AzDrawTargetRef>, draw_me: AzDrawTargetRef) {
self.send(Draw(next_dt, draw_me))
}
fn add_event_listener(listener: comm::chan<Event>) {
@ -160,7 +160,7 @@ type surface_set = {
}
};
fn lend_surface(surfaces: surface_set, recvr: comm::chan<AzDrawTargetRef>) {
fn lend_surface(surfaces: surface_set, recvr: pipes::chan<AzDrawTargetRef>) {
// We are in a position to lend out the surface?
assert surfaces.s1.have;
// Ok then take it