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|
use crate::draw::draw_buffers::INITIAL_INDEX_SIZE;
use crate::draw::draw_buffers::INITIAL_VERT_SIZE;
use crate::draw::UvPoint;
use faces::FaceType;
use std::{
convert::TryInto,
iter::{empty, once},
};
use stockton_levels::prelude::*;
use stockton_types::Vector2;
use crate::draw::draw_buffers::DrawBuffers;
use crate::types::*;
use anyhow::Result;
use super::texture::TextureRepo;
fn draw_or_queue(
current_chunk: usize,
tex_repo: &mut TextureRepo,
cmd_buffer: &mut CommandBufferT,
pipeline_layout: &PipelineLayoutT,
chunk_start: u32,
curr_idx_idx: u32,
) -> Result<()> {
if let Some(ds) = tex_repo.attempt_get_descriptor_set(current_chunk) {
unsafe {
cmd_buffer.bind_graphics_descriptor_sets(pipeline_layout, 0, once(ds), empty());
cmd_buffer.draw_indexed(chunk_start * 3..(curr_idx_idx * 3) + 1, 0, 0..1);
}
} else {
tex_repo.queue_load(current_chunk)?
}
Ok(())
}
pub fn do_render<M: MinBspFeatures<VulkanSystem>>(
cmd_buffer: &mut CommandBufferT,
draw_buffers: &mut DrawBuffers<UvPoint>,
tex_repo: &mut TextureRepo,
pipeline_layout: &PipelineLayoutT,
file: &M,
faces: &[u32],
) -> Result<()> {
// Iterate over faces, copying them in and drawing groups that use the same texture chunk all at once.
let mut current_chunk = file.get_face(0).texture_idx as usize / 8;
let mut chunk_start = 0;
let mut curr_vert_idx: usize = 0;
let mut curr_idx_idx: usize = 0;
for face in faces.iter().map(|idx| file.get_face(*idx)) {
if current_chunk != face.texture_idx as usize / 8 {
// Last index was last of group, so draw it all if textures are loaded.
draw_or_queue(
current_chunk,
tex_repo,
cmd_buffer,
pipeline_layout,
chunk_start as u32,
curr_idx_idx as u32,
)?;
// Next group of same-chunked faces starts here.
chunk_start = curr_idx_idx;
current_chunk = face.texture_idx as usize / 8;
}
if face.face_type == FaceType::Polygon || face.face_type == FaceType::Mesh {
// 2 layers of indirection
let base = face.vertices_idx.start;
for idx in face.meshverts_idx.clone().step_by(3) {
let start_idx: u16 = curr_vert_idx.try_into()?;
for idx2 in idx..idx + 3 {
let vert = &file.resolve_meshvert(idx2 as u32, base);
let uv = Vector2::new(vert.tex.u[0], vert.tex.v[0]);
let uvp = UvPoint(vert.position, face.texture_idx.try_into()?, uv);
draw_buffers.vertex_buffer[curr_vert_idx] = uvp;
curr_vert_idx += 1;
}
draw_buffers.index_buffer[curr_idx_idx] = (start_idx, start_idx + 1, start_idx + 2);
curr_idx_idx += 1;
if curr_vert_idx >= INITIAL_VERT_SIZE.try_into()?
|| curr_idx_idx >= INITIAL_INDEX_SIZE.try_into()?
{
println!("out of vertex buffer space!");
break;
}
}
} else {
// TODO: Other types of faces
}
if curr_vert_idx >= INITIAL_VERT_SIZE.try_into()?
|| curr_idx_idx >= INITIAL_INDEX_SIZE.try_into()?
{
println!("out of vertex buffer space!");
break;
}
}
// Draw the final group of chunks
draw_or_queue(
current_chunk,
tex_repo,
cmd_buffer,
pipeline_layout,
chunk_start as u32,
curr_idx_idx as u32,
)?;
Ok(())
}
|
