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Merge pull request #8 from BillyDM/glow
update to egui 0.19, use official glow painter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,62 +1,83 @@ | ||
| use baseview::Window; | ||
| use egui::{Color32, Rgba}; | ||
| use egui_glow::Painter; | ||
| use raw_gl_context::GlContext; | ||
| use std::sync::Arc; | ||
|
|
||
| pub use raw_gl_context::GlConfig as RenderSettings; | ||
|
|
||
| mod painter; | ||
| use painter::Painter; | ||
|
|
||
| pub struct Renderer { | ||
| context: GlContext, | ||
| glow_context: Arc<egui_glow::glow::Context>, | ||
| painter: Painter, | ||
| } | ||
|
|
||
| impl Renderer { | ||
| pub fn new(window: &Window, render_settings: RenderSettings, canvas_size: (u32, u32)) -> Self { | ||
| pub fn new(window: &Window, render_settings: RenderSettings) -> Self { | ||
| let context = GlContext::create(window, render_settings).unwrap(); | ||
|
|
||
| context.make_current(); | ||
|
|
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| gl::load_with(|s| context.get_proc_address(s) as _); | ||
| let glow_context = Arc::new(unsafe { | ||
| egui_glow::glow::Context::from_loader_function(|s| context.get_proc_address(s)) | ||
| }); | ||
|
|
||
| let painter = Painter::new(canvas_size.0, canvas_size.1); | ||
| let painter = egui_glow::Painter::new(Arc::clone(&glow_context), None, "") | ||
| .map_err(|error| { | ||
| eprintln!("error occurred in initializing painter:\n{}", error); | ||
| }) | ||
| .unwrap(); | ||
|
|
||
| context.make_not_current(); | ||
|
|
||
| Self { context, painter } | ||
| Self { | ||
| context, | ||
| glow_context, | ||
| painter, | ||
| } | ||
| } | ||
|
|
||
| pub fn render( | ||
| &mut self, | ||
| bg_color: Rgba, | ||
| clipped_meshes: Vec<egui::ClippedMesh>, | ||
| egui_texture: &egui::Texture, | ||
| bg_color: egui::Rgba, | ||
| canvas_width: u32, | ||
| canvas_height: u32, | ||
| pixels_per_point: f32, | ||
| egui_ctx: &mut egui::Context, | ||
| shapes: &mut Vec<egui::epaint::ClippedShape>, | ||
| textures_delta: &mut egui::TexturesDelta, | ||
| ) { | ||
| let shapes = std::mem::take(shapes); | ||
| let mut textures_delta = std::mem::take(textures_delta); | ||
|
|
||
| self.context.make_current(); | ||
|
|
||
| unsafe { | ||
| use egui_glow::glow::HasContext as _; | ||
| self.glow_context | ||
| .clear_color(bg_color.r(), bg_color.g(), bg_color.b(), bg_color.a()); | ||
| self.glow_context.clear(egui_glow::glow::COLOR_BUFFER_BIT); | ||
| } | ||
|
|
||
| for (id, image_delta) in textures_delta.set { | ||
| self.painter.set_texture(id, &image_delta); | ||
| } | ||
|
|
||
| let clipped_primitives = egui_ctx.tessellate(shapes); | ||
| let dimensions: [u32; 2] = [canvas_width, canvas_height]; | ||
|
|
||
| self.painter | ||
| .paint_meshes(bg_color, clipped_meshes, egui_texture, pixels_per_point); | ||
| .paint_primitives(dimensions, pixels_per_point, &clipped_primitives); | ||
|
|
||
| for id in textures_delta.free.drain(..) { | ||
| self.painter.free_texture(id); | ||
| } | ||
|
|
||
| self.context.swap_buffers(); | ||
| self.context.make_not_current(); | ||
| } | ||
| } | ||
|
|
||
| pub fn new_user_texture( | ||
| &mut self, | ||
| size: (usize, usize), | ||
| srgba_pixels: &[Color32], | ||
| filtering: bool, | ||
| ) -> egui::TextureId { | ||
| self.painter.new_user_texture(size, srgba_pixels, filtering) | ||
| } | ||
|
|
||
| pub fn update_user_texture_data(&mut self, texture_id: egui::TextureId, pixels: &[Color32]) { | ||
| self.painter.update_user_texture_data(texture_id, pixels) | ||
| } | ||
|
|
||
| pub fn update_window_size(&mut self, width: u32, height: u32) { | ||
| self.painter.set_canvas_size(width, height); | ||
| impl Drop for Renderer { | ||
| fn drop(&mut self) { | ||
| self.painter.destroy() | ||
| } | ||
| } |
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