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use crate::{
renderer::{BufferId, RenderContext, TextureId},
texture::Extent3d,
};
use parking_lot::Mutex;
use std::sync::Arc;
#[derive(Clone, Debug)]
pub enum Command {
CopyBufferToBuffer {
source_buffer: BufferId,
source_offset: u64,
destination_buffer: BufferId,
destination_offset: u64,
size: u64,
},
CopyBufferToTexture {
source_buffer: BufferId,
source_offset: u64,
source_bytes_per_row: u32,
destination_texture: TextureId,
destination_origin: [u32; 3],
destination_mip_level: u32,
size: Extent3d,
},
FreeBuffer(BufferId),
}
#[derive(Debug, Default, Clone)]
pub struct CommandQueue {
queue: Arc<Mutex<Vec<Command>>>,
}
impl CommandQueue {
fn push(&mut self, command: Command) {
self.queue.lock().push(command);
}
pub fn copy_buffer_to_buffer(
&mut self,
source_buffer: BufferId,
source_offset: u64,
destination_buffer: BufferId,
destination_offset: u64,
size: u64,
) {
self.push(Command::CopyBufferToBuffer {
source_buffer,
source_offset,
destination_buffer,
destination_offset,
size,
});
}
#[allow(clippy::too_many_arguments)]
pub fn copy_buffer_to_texture(
&mut self,
source_buffer: BufferId,
source_offset: u64,
source_bytes_per_row: u32,
destination_texture: TextureId,
destination_origin: [u32; 3],
destination_mip_level: u32,
size: Extent3d,
) {
self.push(Command::CopyBufferToTexture {
source_buffer,
source_offset,
source_bytes_per_row,
destination_texture,
destination_origin,
destination_mip_level,
size,
});
}
pub fn free_buffer(&mut self, buffer: BufferId) {
self.push(Command::FreeBuffer(buffer));
}
pub fn clear(&mut self) {
self.queue.lock().clear();
}
pub fn execute(&mut self, render_context: &mut dyn RenderContext) {
for command in self.queue.lock().drain(..) {
match command {
Command::CopyBufferToBuffer {
source_buffer,
source_offset,
destination_buffer,
destination_offset,
size,
} => render_context.copy_buffer_to_buffer(
source_buffer,
source_offset,
destination_buffer,
destination_offset,
size,
),
Command::CopyBufferToTexture {
source_buffer,
source_offset,
source_bytes_per_row,
destination_texture,
destination_origin,
destination_mip_level,
size,
} => render_context.copy_buffer_to_texture(
source_buffer,
source_offset,
source_bytes_per_row,
destination_texture,
destination_origin,
destination_mip_level,
size,
),
Command::FreeBuffer(buffer) => render_context.resources().remove_buffer(buffer),
}
}
}
}