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Browse source 
Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2023-09-23 12:21:52 -06:00
parent 3fbe93f029
commit fb69f3d45f
9 changed files with 152 additions and 118 deletions
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18
crates/gpui3/src/app.rs
View file

@ -3,7 +3,7 @@ use crate::{
Window, WindowContext, WindowHandle, WindowId,
};
use anyhow::{anyhow, Result};
use futures::Future;
use futures::{future, Future};
use parking_lot::Mutex;
use slotmap::SlotMap;
use std::{
@ -77,7 +77,7 @@ impl AppContext {
f: impl FnOnce(&dyn Platform, &mut Self) -> F + Send + 'static,
) -> impl Future<Output = R>
where
F: Future<Output = R> + Send + 'static,
F: Future<Output = R> + 'static,
R: Send + 'static,
{
let this = self.this.upgrade().unwrap();
@ -94,19 +94,13 @@ impl AppContext {
) -> impl Future<Output = WindowHandle<S>> {
let id = self.windows.insert(None);
let handle = WindowHandle::new(id);
let window =
self.spawn_on_main(move |platform, _cx| Window::new(handle.into(), options, platform));
let this = self.this.upgrade().unwrap();
async move {
let mut window = window.await;
let cx = &mut *this.lock();
self.spawn_on_main(move |platform, cx| {
let mut window = Window::new(handle.into(), options, platform);
let root_view = build_root_view(&mut WindowContext::mutable(cx, &mut window));
window.root_view.replace(Box::new(root_view));
cx.windows.get_mut(id).unwrap().replace(window);
handle
}
future::ready(handle)
})
}
pub(crate) fn update_window<R>(

2
crates/gpui3/src/color.rs
View file

@ -5,7 +5,7 @@ use serde::de::{self, Deserialize, Deserializer, Visitor};
use std::fmt;
use std::num::ParseIntError;
pub fn rgb<C: From<Rgba>>(hex: u32) -> C {
pub fn rgb(hex: u32) -> Rgba {
let r = ((hex >> 16) & 0xFF) as f32 / 255.0;
let g = ((hex >> 8) & 0xFF) as f32 / 255.0;
let b = (hex & 0xFF) as f32 / 255.0;

1
crates/gpui3/src/platform/mac.rs
View file

@ -16,6 +16,7 @@ use cocoa::{
base::{id, nil},
foundation::{NSAutoreleasePool, NSNotFound, NSRect, NSSize, NSString, NSUInteger, NSURL},
};
use metal_renderer::*;
use objc::{
msg_send,
runtime::{BOOL, NO, YES},

42
crates/gpui3/src/platform/mac/metal_renderer.rs
View file

@ -12,7 +12,7 @@ use std::{ffi::c_void, mem, ptr};
const SHADERS_METALLIB: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/shaders.metallib"));
const INSTANCE_BUFFER_SIZE: usize = 8192 * 1024; // This is an arbitrary decision. There's probably a more optimal value.
pub struct Renderer {
pub struct MetalRenderer {
layer: metal::MetalLayer,
command_queue: CommandQueue,
quad_pipeline_state: metal::RenderPipelineState,
@ -20,7 +20,7 @@ pub struct Renderer {
instances: metal::Buffer,
}
impl Renderer {
impl MetalRenderer {
pub fn new(is_opaque: bool) -> Self {
const PIXEL_FORMAT: MTLPixelFormat = MTLPixelFormat::BGRA8Unorm;
@ -50,10 +50,26 @@ impl Renderer {
.new_library_with_data(SHADERS_METALLIB)
.expect("error building metal library");
let unit_vertices = [point(1., 1.), point(1., 0.), point(0., 0.), point(0., 1.)];
fn to_float2_bits(point: crate::PointF) -> u64 {
unsafe {
let mut output = mem::transmute::<_, u32>(point.y.to_bits()) as u64;
output <<= 32;
output |= mem::transmute::<_, u32>(point.x.to_bits()) as u64;
output
}
}
let unit_vertices = [
to_float2_bits(point(0., 0.)),
to_float2_bits(point(1., 0.)),
to_float2_bits(point(0., 1.)),
to_float2_bits(point(0., 1.)),
to_float2_bits(point(1., 0.)),
to_float2_bits(point(1., 1.)),
];
let unit_vertices = device.new_buffer_with_data(
unit_vertices.as_ptr() as *const c_void,
(unit_vertices.len() * mem::size_of::<PointF>()) as u64,
(unit_vertices.len() * mem::size_of::<u64>()) as u64,
MTLResourceOptions::StorageModeManaged,
);
let instances = device.new_buffer(
@ -79,6 +95,10 @@ impl Renderer {
}
}
pub fn layer(&self) -> &metal::MetalLayerRef {
&*self.layer
}
pub fn draw(&mut self, scene: &Scene, scale_factor: f32) {
let layer = self.layer.clone();
let viewport_size = layer.drawable_size();
@ -125,11 +145,13 @@ impl Renderer {
scene.max_order(),
command_encoder,
);
command_encoder.end_encoding();
self.instances.did_modify_range(NSRange {
location: 0,
length: buffer_offset as NSUInteger,
});
command_buffer.commit();
command_buffer.wait_until_completed();
drawable.present();
@ -165,6 +187,7 @@ impl Renderer {
scale_factor,
max_order,
};
let quad_uniform_bytes = bytemuck::bytes_of(&quad_uniforms);
command_encoder.set_vertex_bytes(
QuadInputIndex::Uniforms as u64,
@ -184,10 +207,11 @@ impl Renderer {
"instance buffer exhausted"
);
dbg!(quads.len());
command_encoder.draw_primitives_instanced(
metal::MTLPrimitiveType::TriangleStrip,
metal::MTLPrimitiveType::Triangle,
0,
4,
6,
quads.len() as u64,
);
*offset = next_offset;
@ -235,9 +259,9 @@ fn align_offset(offset: &mut usize) {
#[repr(C)]
enum QuadInputIndex {
Vertices,
Quads,
Uniforms,
Vertices = 0,
Quads = 1,
Uniforms = 2,
}
#[derive(Debug, Clone, Copy, Zeroable, Pod)]

3
crates/gpui3/src/platform/mac/screen.rs
View file

@ -1,7 +1,6 @@
use super::ns_string;
use crate::{
platform, point, px, size, Bounds, MainThreadOnly, Pixels, PlatformScreen,
PlatformScreenHandle, ScreenId,
platform, point, px, size, Bounds, Pixels, PlatformScreen, PlatformScreenHandle, ScreenId,
};
use cocoa::{
appkit::NSScreen,

25
crates/gpui3/src/platform/mac/shaders.metal
View file

@ -8,6 +8,8 @@ float4 to_device_position(float2 pixel_position, uint order, uint max_order, flo
struct QuadVertexOutput {
float4 position [[position]];
float4 background_color;
float4 border_color;
uint quad_id;
};
@ -23,7 +25,14 @@ vertex QuadVertexOutput quad_vertex(
float2 position_2d = unit_vertex * float2(quad.bounds.size.width, quad.bounds.size.height) + float2(quad.bounds.origin.x, quad.bounds.origin.y);
float2 viewport_size = float2(uniforms->viewport_size.width, uniforms->viewport_size.height);
float4 device_position = to_device_position(position_2d, quad.order, uniforms->max_order, viewport_size);
return QuadVertexOutput { device_position, quad_id };
float4 background_color = hsla_to_rgba(quad.background);
float4 border_color = hsla_to_rgba(quad.border_color);
return QuadVertexOutput {
device_position,
background_color,
border_color,
quad_id
};
}
fragment float4 quad_fragment(QuadVertexOutput input [[stage_in]], constant Quad *quads [[buffer(QuadInputIndex_Quads)]]) {
@ -64,26 +73,26 @@ fragment float4 quad_fragment(QuadVertexOutput input [[stage_in]], constant Quad
float4 color;
if (border_width == 0.) {
color = float4(quad.background.h, quad.background.s, quad.background.l, quad.background.a);
color = input.background_color;
} else {
float inset_distance = distance + border_width;
// Decrease border's opacity as we move inside the background.
quad.border_color.a *= 1. - saturate(0.5 - inset_distance);
input.border_color.a *= 1. - saturate(0.5 - inset_distance);
// Alpha-blend the border and the background.
float output_alpha = quad.border_color.a + quad.background.a * (1. - quad.border_color.a);
float3 premultiplied_border_rgb = float3(quad.border_color.h, quad.border_color.s, quad.border_color.l) * quad.border_color.a;
float3 premultiplied_background_rgb = float3(quad.background.h, quad.background.s, quad.background.l) * quad.background.a;
float3 premultiplied_output_rgb = premultiplied_border_rgb + premultiplied_background_rgb * (1. - quad.border_color.a);
color = float4(premultiplied_output_rgb.x, premultiplied_output_rgb.y, premultiplied_output_rgb.z, output_alpha);
float3 premultiplied_border_rgb = input.border_color.rgb * quad.border_color.a;
float3 premultiplied_background_rgb = input.background_color.rgb * input.background_color.a;
float3 premultiplied_output_rgb = premultiplied_border_rgb + premultiplied_background_rgb * (1. - input.border_color.a);
color = float4(premultiplied_output_rgb, output_alpha);
}
return color;
}
float4 hsla_to_rgba(Hsla hsla) {
float h = hsla.h;
float h = hsla.h * 6.0; // Now, it's an angle but scaled in [0, 6) range
float s = hsla.s;
float l = hsla.l;
float a = hsla.a;

138
crates/gpui3/src/platform/mac/window.rs
View file

@ -1,3 +1,4 @@
use super::{ns_string, MetalRenderer, NSRange};
use crate::{
point, px, size, AnyWindowHandle, Bounds, Event, InputHandler, KeyDownEvent, Keystroke,
MacScreen, Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMovedEvent,
@ -17,6 +18,7 @@ use cocoa::{
};
use core_graphics::display::CGRect;
use ctor::ctor;
use foreign_types::{ForeignType, ForeignTypeRef};
use futures::channel::oneshot;
use objc::{
class,
@ -39,8 +41,6 @@ use std::{
time::Duration,
};
use super::{ns_string, NSRange};
const WINDOW_STATE_IVAR: &str = "windowState";
static mut WINDOW_CLASS: *const Class = ptr::null();
@ -134,10 +134,10 @@ unsafe fn build_classes() {
cancel_operation as extern "C" fn(&Object, Sel, id),
);
// decl.add_method(
// sel!(makeBackingLayer),
// make_backing_layer as extern "C" fn(&Object, Sel) -> id,
// );
decl.add_method(
sel!(makeBackingLayer),
make_backing_layer as extern "C" fn(&Object, Sel) -> id,
);
decl.add_protocol(Protocol::get("CALayerDelegate").unwrap());
decl.add_method(
@ -277,10 +277,11 @@ struct InsertText {
text: String,
}
struct WindowState {
struct MacWindowState {
handle: AnyWindowHandle,
dispatcher: Arc<dyn PlatformDispatcher>,
native_window: id,
renderer: MetalRenderer,
kind: WindowKind,
event_callback: Option<Box<dyn FnMut(Event) -> bool>>,
activate_callback: Option<Box<dyn FnMut(bool)>>,
@ -303,7 +304,7 @@ struct WindowState {
ime_text: Option<String>,
}
impl WindowState {
impl MacWindowState {
fn move_traffic_light(&self) {
if let Some(traffic_light_position) = self.traffic_light_position {
let titlebar_height = self.titlebar_height();
@ -408,9 +409,9 @@ impl WindowState {
}
}
unsafe impl Send for WindowState {}
unsafe impl Send for MacWindowState {}
pub struct MacWindow(Arc<Mutex<WindowState>>);
pub struct MacWindow(Arc<Mutex<MacWindowState>>);
impl MacWindow {
pub fn open(handle: AnyWindowHandle, options: WindowOptions, platform: &dyn Platform) -> Self {
@ -475,18 +476,19 @@ impl MacWindow {
assert!(!native_view.is_null());
let window = Self(Arc::new(Mutex::new(WindowState {
let window = Self(Arc::new(Mutex::new(MacWindowState {
handle,
dispatcher: platform.dispatcher(),
native_window,
renderer: MetalRenderer::new(true),
kind: options.kind,
event_callback: None,
resize_callback: None,
should_close_callback: None,
close_callback: None,
activate_callback: None,
resize_callback: None,
fullscreen_callback: None,
moved_callback: None,
should_close_callback: None,
close_callback: None,
appearance_changed_callback: None,
input_handler: None,
pending_key_down: None,
@ -882,9 +884,9 @@ fn get_scale_factor(native_window: id) -> f32 {
}
}
unsafe fn get_window_state(object: &Object) -> Arc<Mutex<WindowState>> {
unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
let rc1 = Arc::from_raw(raw as *mut Mutex<WindowState>);
let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
let rc2 = rc1.clone();
mem::forget(rc1);
rc2
@ -892,7 +894,7 @@ unsafe fn get_window_state(object: &Object) -> Arc<Mutex<WindowState>> {
unsafe fn drop_window_state(object: &Object) {
let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
Rc::from_raw(raw as *mut RefCell<WindowState>);
Rc::from_raw(raw as *mut RefCell<MacWindowState>);
}
extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
@ -1272,33 +1274,33 @@ extern "C" fn close_window(this: &Object, _: Sel) {
}
}
// extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
// let window_state = unsafe { get_window_state(this) };
// let window_state = window_state.as_ref().lock();
// window_state.renderer.layer().as_ptr() as id
// }
extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
let window_state = unsafe { get_window_state(this) };
let window_state = window_state.as_ref().lock();
window_state.renderer.layer().as_ptr() as id
}
extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
let window_state = unsafe { get_window_state(this) };
let mut window_state_borrow = window_state.as_ref().lock();
// unsafe {
// let scale_factor = window_state_borrow.scale_factor() as f64;
// let size = window_state_borrow.content_size();
// let drawable_size: NSSize = NSSize {
// width: f64::from(size.width) * scale_factor,
// height: f64::from(size.height) * scale_factor,
// };
unsafe {
let scale_factor = window_state_borrow.scale_factor() as f64;
let size = window_state_borrow.content_size();
let drawable_size: NSSize = NSSize {
width: f64::from(size.width) * scale_factor,
height: f64::from(size.height) * scale_factor,
};
// // let _: () = msg_send![
// // window_state_borrow.renderer.layer(),
// // setContentsScale: scale_factor
// // ];
// // let _: () = msg_send![
// // window_state_borrow.renderer.layer(),
// // setDrawableSize: drawable_size
// // ];
// }
let _: () = msg_send![
window_state_borrow.renderer.layer(),
setContentsScale: scale_factor
];
let _: () = msg_send![
window_state_borrow.renderer.layer(),
setDrawableSize: drawable_size
];
}
if let Some(mut callback) = window_state_borrow.resize_callback.take() {
drop(window_state_borrow);
@ -1319,18 +1321,18 @@ extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
}
// let scale_factor = window_state_borrow.scale_factor() as f64;
// let drawable_size: NSSize = NSSize {
// width: size.width * scale_factor,
// height: size.height * scale_factor,
// };
//
// unsafe {
// let _: () = msg_send![
// window_state_borrow.renderer.layer(),
// setDrawableSize: drawable_size
// ];
// }
let scale_factor = window_state_borrow.scale_factor() as f64;
let drawable_size: NSSize = NSSize {
width: size.width * scale_factor,
height: size.height * scale_factor,
};
unsafe {
let _: () = msg_send![
window_state_borrow.renderer.layer(),
setDrawableSize: drawable_size
];
}
drop(window_state_borrow);
let mut window_state_borrow = window_state.lock();
@ -1341,14 +1343,32 @@ extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
};
}
extern "C" fn display_layer(_this: &Object, _: Sel, _: id) {
// unsafe {
// let window_state = get_window_state(this);
// let mut window_state = window_state.as_ref().lock();
// if let Some(scene) = window_state.scene_to_render.take() {
// window_state.renderer.render(&scene);
// };
// }
extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
unsafe {
let window_state = get_window_state(this);
let mut window_state = window_state.as_ref().lock();
let mut scene = crate::Scene::new();
scene.insert(crate::Quad {
order: 0,
bounds: Bounds {
origin: point(10., 10.).map(px),
size: size(100., 100.).map(px),
},
clip_bounds: Bounds {
origin: point(10., 10.).map(px),
size: size(100., 100.).map(px),
},
clip_corner_radii: Default::default(),
background: crate::rgb(0x00ff00).into(),
border_color: Default::default(),
corner_radii: Default::default(),
border_widths: Default::default(),
});
dbg!("!!!!!!!!!");
let scale_factor = window_state.scale_factor();
window_state.renderer.draw(&scene, scale_factor);
}
}
extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
@ -1544,7 +1564,7 @@ extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
}
async fn synthetic_drag(
window_state: Weak<Mutex<WindowState>>,
window_state: Weak<Mutex<MacWindowState>>,
drag_id: usize,
event: MouseMovedEvent,
) {

16
crates/gpui3/src/scene.rs
View file

@ -25,19 +25,13 @@ impl Scene {
}
}
pub fn insert(&mut self, primitive: impl Into<Primitive>, is_transparent: bool) {
pub fn insert(&mut self, primitive: impl Into<Primitive>) {
let primitive = primitive.into();
self.max_order = cmp::max(self.max_order, primitive.order());
if is_transparent {
self.transparent_primitives.insert(primitive);
} else {
match primitive {
Primitive::Quad(quad) => self.opaque_primitives.quads.push(quad),
Primitive::Glyph(glyph) => self.opaque_primitives.glyphs.push(glyph),
Primitive::Underline(underline) => {
self.opaque_primitives.underlines.push(underline)
}
}
match primitive {
Primitive::Quad(quad) => self.opaque_primitives.quads.push(quad),
Primitive::Glyph(glyph) => self.opaque_primitives.glyphs.push(glyph),
Primitive::Underline(underline) => self.opaque_primitives.underlines.push(underline),
}
}

25
crates/gpui3/src/window.rs
View file

@ -26,25 +26,18 @@ pub struct Window {
}
impl Window {
pub fn new(
handle: AnyWindowHandle,
options: WindowOptions,
platform: &dyn Platform,
) -> impl Future<Output = Window> + 'static {
pub fn new(handle: AnyWindowHandle, options: WindowOptions, platform: &dyn Platform) -> Self {
let platform_window = platform.open_window(handle, options);
let mouse_position = platform_window.mouse_position();
let platform_window = MainThreadOnly::new(Arc::new(platform_window), platform.dispatcher());
async move {
Window {
handle,
platform_window,
rem_size: px(16.),
layout_engine: TaffyLayoutEngine::new(),
text_style_stack: Vec::new(),
root_view: None,
mouse_position,
}
Window {
handle,
platform_window,
rem_size: px(16.),
layout_engine: TaffyLayoutEngine::new(),
text_style_stack: Vec::new(),
root_view: None,
mouse_position,
}
}
}