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use bevy::{prelude::*, render::{render_graph::{Node, RenderGraphContext, NodeRunError, RenderLabel}, renderer::RenderContext, render_asset::RenderAssets, render_resource::{ImageCopyBuffer, ImageDataLayout}}};
use crate::render_assets::FramebufferExtractSource;
#[derive(RenderLabel, Clone, PartialEq, Eq, Debug, Hash)]
pub struct FramebufferExtractLabel;
#[derive(Default)]
pub struct FramebufferExtractNode;
impl Node for FramebufferExtractNode {
fn run(
&self,
graph: &mut RenderGraphContext,
render_context: &mut RenderContext,
world: &World,
) -> Result<(), NodeRunError> {
for (_, source) in world.resource::<RenderAssets<FramebufferExtractSource>>().iter() {
let Some(gpu_image) = world.resource::<RenderAssets<Image>>().get(&source.source_handle) else {
return Ok(())
};
render_context.command_encoder().copy_texture_to_buffer(
gpu_image.texture.as_image_copy(),
ImageCopyBuffer {
buffer: &source.buffer,
layout: ImageDataLayout {
offset: 0,
bytes_per_row: Some(source.padded_bytes_per_row),
rows_per_image: None,
},
},
source.source_size,
);
}
Ok(())
}
}
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