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#[cfg(feature = "vulkan")]
extern crate gfx_backend_vulkan as back;
extern crate gfx_hal as hal;
extern crate nalgebra_glm as na;
#[macro_use]
extern crate derive_builder;
pub mod buffers;
pub mod builders;
pub mod context;
pub mod draw_passes;
pub mod error;
pub mod mem;
pub mod queue_negotiator;
mod target;
pub mod texture;
pub mod types;
pub mod utils;
use context::RenderingContext;
use draw_passes::{DrawPass, IntoDrawPass, Singular};
use anyhow::{Context, Result};
use stockton_types::Session;
use winit::window::Window;
/// Renders a world to a window when you tell it to.
/// Also takes ownership of the window and channels window events to be processed outside winit's event loop.
pub struct Renderer<DP> {
/// All the vulkan stuff
context: RenderingContext,
/// The draw pass we're using
draw_pass: DP,
}
impl<DP: DrawPass<Singular>> Renderer<DP> {
/// Create a new Renderer.
pub fn new<IDP: IntoDrawPass<DP, Singular>>(
window: &Window,
session: &mut Session,
idp: IDP,
) -> Result<Self> {
let mut context = RenderingContext::new::<IDP, DP>(window)?;
// Draw pass
let draw_pass = idp
.init(session, &mut context)
.context("Error initialising draw pass")?;
Ok(Renderer { context, draw_pass })
}
/// Render a single frame of the given session.
pub fn render(&mut self, session: &Session) -> Result<()> {
// Try to draw
if self
.context
.draw_next_frame(session, &mut self.draw_pass)
.is_err()
{
// Probably the surface changed
self.handle_surface_change(session)?;
// If it fails twice, then error
self.context.draw_next_frame(session, &mut self.draw_pass)?;
}
Ok(())
}
pub fn get_aspect_ratio(&self) -> f32 {
let e = self.context.target_chain().properties().extent;
e.width as f32 / e.height as f32
}
pub fn handle_surface_change(&mut self, session: &Session) -> Result<()> {
unsafe {
self.context.handle_surface_change()?;
self.draw_pass
.handle_surface_change(session, &mut self.context)?;
}
Ok(())
}
/// Get a reference to the renderer's context.
pub fn context(&self) -> &RenderingContext {
&self.context
}
}
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