2019-01-14 17:20:36 -05:00
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// pathfinder/renderer/src/builder.rs
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//
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// Copyright © 2019 The Pathfinder Project Developers.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Packs data onto the GPU.
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use crate::concurrent::executor::Executor;
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use crate::gpu::renderer::{BlendModeProgram, MASK_TILES_ACROSS};
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use crate::gpu_data::{AlphaTile, AlphaTileVertex, FillBatchPrimitive, MaskTile, MaskTileVertex};
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use crate::gpu_data::{PaintPageId, RenderCommand, SolidTileBatch, TileObjectPrimitive};
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use crate::options::{PreparedBuildOptions, RenderCommandListener};
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use crate::paint::{PaintInfo, PaintMetadata};
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use crate::scene::{DisplayItem, Scene};
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use crate::tile_map::DenseTileMap;
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use crate::tiles::{self, TILE_HEIGHT, TILE_WIDTH, Tiler, TilingPathInfo};
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use crate::z_buffer::ZBuffer;
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use pathfinder_content::effects::{BlendMode, Effects};
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use pathfinder_content::fill::FillRule;
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use pathfinder_content::pattern::RenderTargetId;
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use pathfinder_geometry::line_segment::{LineSegment2F, LineSegmentU4, LineSegmentU8};
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use pathfinder_geometry::vector::{Vector2F, Vector2I};
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use pathfinder_geometry::rect::{RectF, RectI};
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use pathfinder_geometry::util;
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use pathfinder_simd::default::{F32x4, I32x4};
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use std::sync::atomic::{AtomicUsize, Ordering};
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use std::time::Instant;
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use std::u16;
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pub(crate) struct SceneBuilder<'a> {
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scene: &'a Scene,
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built_options: &'a PreparedBuildOptions,
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next_alpha_tile_index: AtomicUsize,
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next_mask_tile_index: AtomicUsize,
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pub(crate) listener: Box<dyn RenderCommandListener>,
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}
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#[derive(Debug)]
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pub(crate) struct ObjectBuilder {
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pub built_path: BuiltPath,
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pub fills: Vec<FillBatchPrimitive>,
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pub bounds: RectF,
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}
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#[derive(Debug)]
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struct BuiltDrawPath {
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path: BuiltPath,
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blend_mode: BlendMode,
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paint_page: PaintPageId,
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}
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#[derive(Debug)]
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pub(crate) struct BuiltPath {
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pub mask_tiles: Vec<MaskTile>,
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pub alpha_tiles: Vec<AlphaTile>,
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pub solid_tiles: Vec<SolidTile>,
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pub tiles: DenseTileMap<TileObjectPrimitive>,
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pub fill_rule: FillRule,
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}
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#[derive(Clone, Copy, Debug)]
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pub(crate) struct SolidTile {
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pub(crate) coords: Vector2I,
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}
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impl<'a> SceneBuilder<'a> {
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pub(crate) fn new(
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scene: &'a Scene,
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built_options: &'a PreparedBuildOptions,
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listener: Box<dyn RenderCommandListener>,
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) -> SceneBuilder<'a> {
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SceneBuilder {
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scene,
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built_options,
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next_alpha_tile_index: AtomicUsize::new(0),
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next_mask_tile_index: AtomicUsize::new(0),
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listener,
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}
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}
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pub fn build<E>(&mut self, executor: &E) where E: Executor {
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let start_time = Instant::now();
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// Send the start rendering command.
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let bounding_quad = self.built_options.bounding_quad();
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let clip_path_count = self.scene.clip_paths.len();
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let draw_path_count = self.scene.paths.len();
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let total_path_count = clip_path_count + draw_path_count;
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let needs_readable_framebuffer = self.needs_readable_framebuffer();
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self.listener.send(RenderCommand::Start {
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bounding_quad,
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path_count: total_path_count,
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needs_readable_framebuffer,
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});
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// Build paint data.
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let PaintInfo {
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data: paint_data,
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metadata: paint_metadata,
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} = self.scene.build_paint_info();
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self.listener.send(RenderCommand::AddPaintData(paint_data));
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let effective_view_box = self.scene.effective_view_box(self.built_options);
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let built_clip_paths = executor.build_vector(clip_path_count, |path_index| {
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self.build_clip_path(path_index, effective_view_box, &self.built_options, &self.scene)
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});
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let built_draw_paths = executor.build_vector(draw_path_count, |path_index| {
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self.build_draw_path(path_index,
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effective_view_box,
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&self.built_options,
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&self.scene,
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&paint_metadata,
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&built_clip_paths)
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});
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self.finish_building(&paint_metadata, built_clip_paths, built_draw_paths);
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let build_time = Instant::now() - start_time;
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self.listener.send(RenderCommand::Finish { build_time });
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}
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fn build_clip_path(
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&self,
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path_index: usize,
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view_box: RectF,
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built_options: &PreparedBuildOptions,
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scene: &Scene,
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) -> BuiltPath {
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let path_object = &scene.clip_paths[path_index];
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let outline = scene.apply_render_options(path_object.outline(), built_options);
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let mut tiler = Tiler::new(self,
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&outline,
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path_object.fill_rule(),
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view_box,
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path_index as u16,
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TilingPathInfo::Clip);
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tiler.generate_tiles();
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self.listener.send(RenderCommand::AddFills(tiler.object_builder.fills));
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tiler.object_builder.built_path
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}
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fn build_draw_path(
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&self,
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path_index: usize,
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view_box: RectF,
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built_options: &PreparedBuildOptions,
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scene: &Scene,
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paint_metadata: &[PaintMetadata],
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built_clip_paths: &[BuiltPath],
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) -> BuiltDrawPath {
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let path_object = &scene.paths[path_index];
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let outline = scene.apply_render_options(path_object.outline(), built_options);
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let paint_id = path_object.paint();
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let paint_metadata = &paint_metadata[paint_id.0 as usize];
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let built_clip_path =
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path_object.clip_path().map(|clip_path_id| &built_clip_paths[clip_path_id.0 as usize]);
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let mut tiler = Tiler::new(self,
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&outline,
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path_object.fill_rule(),
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view_box,
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path_index as u16,
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TilingPathInfo::Draw {
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paint_metadata,
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blend_mode: path_object.blend_mode(),
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built_clip_path,
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});
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tiler.generate_tiles();
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self.listener.send(RenderCommand::AddFills(tiler.object_builder.fills));
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BuiltDrawPath {
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path: tiler.object_builder.built_path,
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blend_mode: path_object.blend_mode(),
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paint_page: paint_metadata.tex_page,
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}
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}
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fn cull_tiles(&self,
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paint_metadata: &[PaintMetadata],
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built_clip_paths: Vec<BuiltPath>,
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built_draw_paths: Vec<BuiltDrawPath>)
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-> CulledTiles {
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let mut culled_tiles = CulledTiles {
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mask_winding_tiles: vec![],
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mask_evenodd_tiles: vec![],
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display_list: vec![],
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};
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for built_clip_path in built_clip_paths {
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culled_tiles.push_mask_tiles(&built_clip_path);
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}
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let mut remaining_layer_z_buffers = self.build_solid_tiles(&built_draw_paths);
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remaining_layer_z_buffers.reverse();
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// Process first Z-buffer.
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let first_z_buffer = remaining_layer_z_buffers.pop().unwrap();
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let first_solid_tiles = first_z_buffer.build_solid_tiles(&self.scene.paths,
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paint_metadata);
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for batch in first_solid_tiles.batches {
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culled_tiles.display_list.push(CulledDisplayItem::DrawSolidTiles(batch));
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}
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let mut layer_z_buffers_stack = vec![first_z_buffer];
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for display_item in &self.scene.display_list {
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// Pass all commands except `DrawPaths` through.
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let (start_draw_path_index, end_draw_path_index) = match *display_item {
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DisplayItem::PushRenderTarget(render_target_id) => {
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culled_tiles.display_list
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.push(CulledDisplayItem::PushRenderTarget(render_target_id));
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let z_buffer = remaining_layer_z_buffers.pop().unwrap();
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let solid_tiles = z_buffer.build_solid_tiles(&self.scene.paths,
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paint_metadata);
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for batch in solid_tiles.batches {
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culled_tiles.display_list.push(CulledDisplayItem::DrawSolidTiles(batch));
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}
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layer_z_buffers_stack.push(z_buffer);
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continue;
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}
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DisplayItem::PopRenderTarget => {
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culled_tiles.display_list.push(CulledDisplayItem::PopRenderTarget);
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layer_z_buffers_stack.pop();
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continue;
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}
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DisplayItem::DrawRenderTarget { render_target, effects } => {
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culled_tiles.display_list.push(CulledDisplayItem::DrawRenderTarget {
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render_target,
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effects,
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});
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continue;
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}
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DisplayItem::DrawPaths { start_index, end_index } => (start_index, end_index),
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};
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for draw_path_index in start_draw_path_index..end_draw_path_index {
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let built_draw_path = &built_draw_paths[draw_path_index as usize];
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culled_tiles.push_mask_tiles(&built_draw_path.path);
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// Create a new `DrawAlphaTiles` display item if we don't have one or if we have to
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// break a batch due to blend mode or paint page. Note that every path with a blend
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// mode that requires a readable framebuffer needs its own batch.
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//
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// TODO(pcwalton): If we really wanted to, we could use tile maps to avoid batch
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// breaks in some cases…
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match culled_tiles.display_list.last() {
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Some(&CulledDisplayItem::DrawAlphaTiles {
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tiles: _,
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paint_page,
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blend_mode
|
2020-02-21 17:46:10 -05:00
|
|
|
}) if paint_page == built_draw_path.paint_page &&
|
2020-02-22 17:39:03 -05:00
|
|
|
blend_mode == built_draw_path.blend_mode &&
|
|
|
|
!BlendModeProgram::from_blend_mode(
|
2020-02-25 00:22:15 -05:00
|
|
|
blend_mode).needs_readable_framebuffer() => {}
|
2020-02-20 18:52:40 -05:00
|
|
|
_ => {
|
|
|
|
culled_tiles.display_list.push(CulledDisplayItem::DrawAlphaTiles {
|
|
|
|
tiles: vec![],
|
2020-02-21 17:46:10 -05:00
|
|
|
paint_page: built_draw_path.paint_page,
|
2020-02-20 18:52:40 -05:00
|
|
|
blend_mode: built_draw_path.blend_mode,
|
|
|
|
})
|
|
|
|
}
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
// Fetch the destination alpha tiles buffer.
|
|
|
|
let culled_alpha_tiles = match *culled_tiles.display_list.last_mut().unwrap() {
|
2020-02-20 18:52:40 -05:00
|
|
|
CulledDisplayItem::DrawAlphaTiles {
|
|
|
|
tiles: ref mut culled_alpha_tiles,
|
|
|
|
..
|
|
|
|
} => culled_alpha_tiles,
|
2020-02-19 20:44:41 -05:00
|
|
|
_ => unreachable!(),
|
|
|
|
};
|
|
|
|
|
|
|
|
let layer_z_buffer = layer_z_buffers_stack.last().unwrap();
|
2020-02-20 18:52:40 -05:00
|
|
|
for alpha_tile in &built_draw_path.path.alpha_tiles {
|
2020-02-19 20:44:41 -05:00
|
|
|
let alpha_tile_coords = alpha_tile.upper_left.tile_position();
|
|
|
|
if layer_z_buffer.test(alpha_tile_coords,
|
|
|
|
alpha_tile.upper_left.object_index as u32) {
|
|
|
|
culled_alpha_tiles.push(*alpha_tile);
|
|
|
|
}
|
2020-02-14 23:53:27 -05:00
|
|
|
}
|
|
|
|
}
|
2019-01-14 17:20:36 -05:00
|
|
|
}
|
2020-02-14 23:53:27 -05:00
|
|
|
|
|
|
|
culled_tiles
|
2019-01-14 17:20:36 -05:00
|
|
|
}
|
2019-03-29 22:11:38 -04:00
|
|
|
|
2020-02-20 18:52:40 -05:00
|
|
|
fn build_solid_tiles(&self, built_draw_paths: &[BuiltDrawPath]) -> Vec<ZBuffer> {
|
2020-02-19 20:44:41 -05:00
|
|
|
let effective_view_box = self.scene.effective_view_box(self.built_options);
|
|
|
|
let mut z_buffers = vec![ZBuffer::new(effective_view_box)];
|
|
|
|
let mut z_buffer_index_stack = vec![0];
|
|
|
|
|
|
|
|
// Create Z-buffers.
|
|
|
|
for display_item in &self.scene.display_list {
|
|
|
|
match *display_item {
|
2020-02-22 00:42:15 -05:00
|
|
|
DisplayItem::PushRenderTarget { .. } => {
|
2020-02-19 20:44:41 -05:00
|
|
|
z_buffer_index_stack.push(z_buffers.len());
|
|
|
|
z_buffers.push(ZBuffer::new(effective_view_box));
|
|
|
|
}
|
2020-02-22 00:42:15 -05:00
|
|
|
DisplayItem::PopRenderTarget => {
|
2020-02-19 20:44:41 -05:00
|
|
|
z_buffer_index_stack.pop();
|
|
|
|
}
|
|
|
|
DisplayItem::DrawPaths { start_index, end_index } => {
|
|
|
|
let (start_index, end_index) = (start_index as usize, end_index as usize);
|
|
|
|
let z_buffer = &mut z_buffers[*z_buffer_index_stack.last().unwrap()];
|
2020-02-25 21:36:46 -05:00
|
|
|
for (path_subindex, built_draw_path) in
|
2020-02-19 20:44:41 -05:00
|
|
|
built_draw_paths[start_index..end_index].iter().enumerate() {
|
2020-02-25 21:36:46 -05:00
|
|
|
z_buffer.update(&built_draw_path.path.solid_tiles,
|
|
|
|
(path_subindex + start_index) as u32);
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
|
|
|
}
|
2020-02-22 00:42:15 -05:00
|
|
|
DisplayItem::DrawRenderTarget { .. } => {
|
|
|
|
// FIXME(pcwalton): Not great that this doesn't participate in Z-buffering!
|
|
|
|
}
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
debug_assert_eq!(z_buffer_index_stack.len(), 1);
|
|
|
|
|
|
|
|
z_buffers
|
|
|
|
}
|
2020-02-17 17:44:48 -05:00
|
|
|
|
2020-02-19 20:44:41 -05:00
|
|
|
fn pack_tiles(&mut self, culled_tiles: CulledTiles) {
|
2020-02-17 17:44:48 -05:00
|
|
|
if !culled_tiles.mask_winding_tiles.is_empty() {
|
|
|
|
self.listener.send(RenderCommand::RenderMaskTiles {
|
|
|
|
tiles: culled_tiles.mask_winding_tiles,
|
|
|
|
fill_rule: FillRule::Winding,
|
|
|
|
});
|
2020-02-15 00:55:37 -05:00
|
|
|
}
|
2020-02-17 17:44:48 -05:00
|
|
|
if !culled_tiles.mask_evenodd_tiles.is_empty() {
|
|
|
|
self.listener.send(RenderCommand::RenderMaskTiles {
|
|
|
|
tiles: culled_tiles.mask_evenodd_tiles,
|
|
|
|
fill_rule: FillRule::EvenOdd,
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2020-02-19 20:44:41 -05:00
|
|
|
for display_item in culled_tiles.display_list {
|
|
|
|
match display_item {
|
2020-02-21 17:46:10 -05:00
|
|
|
CulledDisplayItem::DrawSolidTiles(batch) => {
|
|
|
|
self.listener.send(RenderCommand::DrawSolidTiles(batch))
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
2020-02-21 17:46:10 -05:00
|
|
|
CulledDisplayItem::DrawAlphaTiles { tiles, paint_page, blend_mode } => {
|
|
|
|
self.listener.send(RenderCommand::DrawAlphaTiles {
|
|
|
|
tiles,
|
|
|
|
paint_page,
|
|
|
|
blend_mode,
|
|
|
|
})
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
2020-02-22 00:42:15 -05:00
|
|
|
CulledDisplayItem::DrawRenderTarget { render_target, effects } => {
|
|
|
|
self.listener.send(RenderCommand::DrawRenderTarget { render_target, effects })
|
|
|
|
}
|
|
|
|
CulledDisplayItem::PushRenderTarget(render_target_id) => {
|
|
|
|
self.listener.send(RenderCommand::PushRenderTarget(render_target_id))
|
|
|
|
}
|
|
|
|
CulledDisplayItem::PopRenderTarget => {
|
|
|
|
self.listener.send(RenderCommand::PopRenderTarget)
|
2020-02-19 20:44:41 -05:00
|
|
|
}
|
|
|
|
}
|
2019-03-29 22:11:38 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-02-04 01:24:34 -05:00
|
|
|
fn finish_building(&mut self,
|
|
|
|
paint_metadata: &[PaintMetadata],
|
2020-02-15 17:00:36 -05:00
|
|
|
built_clip_paths: Vec<BuiltPath>,
|
2020-02-20 18:52:40 -05:00
|
|
|
built_draw_paths: Vec<BuiltDrawPath>) {
|
2019-04-15 16:21:24 -04:00
|
|
|
self.listener.send(RenderCommand::FlushFills);
|
2020-02-19 20:44:41 -05:00
|
|
|
let culled_tiles = self.cull_tiles(paint_metadata, built_clip_paths, built_draw_paths);
|
|
|
|
self.pack_tiles(culled_tiles);
|
2019-03-29 22:11:38 -04:00
|
|
|
}
|
2020-02-16 16:45:15 -05:00
|
|
|
|
|
|
|
pub(crate) fn allocate_mask_tile_index(&self) -> u16 {
|
|
|
|
// FIXME(pcwalton): Check for overflow!
|
|
|
|
self.next_mask_tile_index.fetch_add(1, Ordering::Relaxed) as u16
|
|
|
|
}
|
2020-02-22 17:39:03 -05:00
|
|
|
|
|
|
|
fn needs_readable_framebuffer(&self) -> bool {
|
|
|
|
let mut framebuffer_nesting = 0;
|
|
|
|
for display_item in &self.scene.display_list {
|
|
|
|
match *display_item {
|
|
|
|
DisplayItem::DrawRenderTarget { .. } => {}
|
|
|
|
DisplayItem::PushRenderTarget(_) => framebuffer_nesting += 1,
|
|
|
|
DisplayItem::PopRenderTarget => framebuffer_nesting -= 1,
|
|
|
|
DisplayItem::DrawPaths { start_index, end_index } => {
|
|
|
|
if framebuffer_nesting > 0 {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
for path_index in start_index..end_index {
|
|
|
|
let blend_mode = self.scene.paths[path_index as usize].blend_mode();
|
|
|
|
let blend_mode_program = BlendModeProgram::from_blend_mode(blend_mode);
|
|
|
|
if blend_mode_program.needs_readable_framebuffer() {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
false
|
|
|
|
}
|
2019-03-29 22:11:38 -04:00
|
|
|
}
|
|
|
|
|
2020-02-19 20:44:41 -05:00
|
|
|
impl BuiltPath {
|
|
|
|
fn new(bounds: RectF, fill_rule: FillRule) -> BuiltPath {
|
|
|
|
BuiltPath {
|
|
|
|
mask_tiles: vec![],
|
|
|
|
alpha_tiles: vec![],
|
|
|
|
solid_tiles: vec![],
|
|
|
|
tiles: DenseTileMap::new(tiles::round_rect_out_to_tile_bounds(bounds)),
|
|
|
|
fill_rule,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl SolidTile {
|
|
|
|
#[inline]
|
|
|
|
pub(crate) fn new(coords: Vector2I) -> SolidTile {
|
|
|
|
SolidTile { coords }
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-02-15 00:55:37 -05:00
|
|
|
struct CulledTiles {
|
2020-02-17 17:44:48 -05:00
|
|
|
mask_winding_tiles: Vec<MaskTile>,
|
|
|
|
mask_evenodd_tiles: Vec<MaskTile>,
|
2020-02-19 20:44:41 -05:00
|
|
|
display_list: Vec<CulledDisplayItem>,
|
|
|
|
}
|
|
|
|
|
|
|
|
enum CulledDisplayItem {
|
2020-02-21 17:46:10 -05:00
|
|
|
DrawSolidTiles(SolidTileBatch),
|
2020-02-22 00:42:15 -05:00
|
|
|
DrawAlphaTiles { tiles: Vec<AlphaTile>, paint_page: PaintPageId, blend_mode: BlendMode },
|
|
|
|
DrawRenderTarget { render_target: RenderTargetId, effects: Effects },
|
|
|
|
PushRenderTarget(RenderTargetId),
|
|
|
|
PopRenderTarget,
|
2020-02-15 00:55:37 -05:00
|
|
|
}
|
|
|
|
|
2019-04-18 18:09:37 -04:00
|
|
|
#[derive(Clone, Copy, Debug, Default)]
|
|
|
|
pub struct TileStats {
|
|
|
|
pub solid_tile_count: u32,
|
|
|
|
pub alpha_tile_count: u32,
|
|
|
|
}
|
2019-05-03 21:51:36 -04:00
|
|
|
|
|
|
|
// Utilities for built objects
|
|
|
|
|
2020-02-14 23:53:27 -05:00
|
|
|
impl ObjectBuilder {
|
2020-02-17 17:44:48 -05:00
|
|
|
pub(crate) fn new(bounds: RectF, fill_rule: FillRule) -> ObjectBuilder {
|
2020-02-19 20:44:41 -05:00
|
|
|
ObjectBuilder { built_path: BuiltPath::new(bounds, fill_rule), bounds, fills: vec![] }
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
#[inline]
|
2019-05-29 22:13:42 -04:00
|
|
|
pub(crate) fn tile_rect(&self) -> RectI {
|
2020-02-15 21:01:23 -05:00
|
|
|
self.built_path.tiles.rect
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
fn add_fill(
|
|
|
|
&mut self,
|
2020-02-14 23:53:27 -05:00
|
|
|
scene_builder: &SceneBuilder,
|
2019-06-25 17:43:13 -04:00
|
|
|
segment: LineSegment2F,
|
2019-06-03 15:39:29 -04:00
|
|
|
tile_coords: Vector2I,
|
2019-05-03 21:51:36 -04:00
|
|
|
) {
|
|
|
|
debug!("add_fill({:?} ({:?}))", segment, tile_coords);
|
|
|
|
|
|
|
|
// Ensure this fill is in bounds. If not, cull it.
|
|
|
|
if self.tile_coords_to_local_index(tile_coords).is_none() {
|
|
|
|
return;
|
|
|
|
};
|
|
|
|
|
|
|
|
debug_assert_eq!(TILE_WIDTH, TILE_HEIGHT);
|
|
|
|
|
2019-06-25 17:43:13 -04:00
|
|
|
// Compute the upper left corner of the tile.
|
|
|
|
let tile_size = F32x4::splat(TILE_WIDTH as f32);
|
|
|
|
let tile_upper_left = tile_coords.to_f32().0.to_f32x4().xyxy() * tile_size;
|
2019-05-03 21:51:36 -04:00
|
|
|
|
2019-06-25 17:43:13 -04:00
|
|
|
// Convert to 4.8 fixed point.
|
2019-05-03 21:51:36 -04:00
|
|
|
let segment = (segment.0 - tile_upper_left) * F32x4::splat(256.0);
|
2019-06-25 17:43:13 -04:00
|
|
|
let (min, max) = (F32x4::default(), F32x4::splat((TILE_WIDTH * 256 - 1) as f32));
|
|
|
|
let segment = segment.clamp(min, max).to_i32x4();
|
|
|
|
let (from_x, from_y, to_x, to_y) = (segment[0], segment[1], segment[2], segment[3]);
|
2019-05-03 21:51:36 -04:00
|
|
|
|
|
|
|
// Cull degenerate fills.
|
2019-06-25 17:43:13 -04:00
|
|
|
if from_x == to_x {
|
2019-05-03 21:51:36 -04:00
|
|
|
debug!("... culling!");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Allocate global tile if necessary.
|
2020-02-14 23:53:27 -05:00
|
|
|
let alpha_tile_index = self.get_or_allocate_alpha_tile_index(scene_builder, tile_coords);
|
2019-05-03 21:51:36 -04:00
|
|
|
|
2019-06-25 17:43:13 -04:00
|
|
|
// Pack whole pixels.
|
2019-12-29 15:38:36 -05:00
|
|
|
let px = (segment & I32x4::splat(0xf00)).to_u32x4();
|
|
|
|
let px = (px >> 8).to_i32x4() | (px >> 4).to_i32x4().yxwz();
|
2019-06-25 17:43:13 -04:00
|
|
|
|
|
|
|
// Pack instance data.
|
2019-05-03 21:51:36 -04:00
|
|
|
debug!("... OK, pushing");
|
|
|
|
self.fills.push(FillBatchPrimitive {
|
2019-06-25 17:43:13 -04:00
|
|
|
px: LineSegmentU4 { from: px[0] as u8, to: px[2] as u8 },
|
|
|
|
subpx: LineSegmentU8 {
|
|
|
|
from_x: from_x as u8,
|
|
|
|
from_y: from_y as u8,
|
|
|
|
to_x: to_x as u8,
|
|
|
|
to_y: to_y as u8,
|
|
|
|
},
|
2019-05-03 21:51:36 -04:00
|
|
|
alpha_tile_index,
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
fn get_or_allocate_alpha_tile_index(
|
|
|
|
&mut self,
|
2020-02-14 23:53:27 -05:00
|
|
|
scene_builder: &SceneBuilder,
|
2019-06-03 15:39:29 -04:00
|
|
|
tile_coords: Vector2I,
|
2019-05-03 21:51:36 -04:00
|
|
|
) -> u16 {
|
2020-02-15 21:01:23 -05:00
|
|
|
let local_tile_index = self.built_path.tiles.coords_to_index_unchecked(tile_coords);
|
|
|
|
let alpha_tile_index = self.built_path.tiles.data[local_tile_index].alpha_tile_index;
|
2019-05-03 21:51:36 -04:00
|
|
|
if alpha_tile_index != !0 {
|
|
|
|
return alpha_tile_index;
|
|
|
|
}
|
|
|
|
|
2020-02-16 16:45:15 -05:00
|
|
|
// FIXME(pcwalton): Check for overflow!
|
2020-02-14 23:53:27 -05:00
|
|
|
let alpha_tile_index = scene_builder
|
2019-05-03 21:51:36 -04:00
|
|
|
.next_alpha_tile_index
|
|
|
|
.fetch_add(1, Ordering::Relaxed) as u16;
|
2020-02-15 21:01:23 -05:00
|
|
|
self.built_path.tiles.data[local_tile_index].alpha_tile_index = alpha_tile_index;
|
2019-05-03 21:51:36 -04:00
|
|
|
alpha_tile_index
|
|
|
|
}
|
|
|
|
|
|
|
|
pub(crate) fn add_active_fill(
|
|
|
|
&mut self,
|
2020-02-14 23:53:27 -05:00
|
|
|
scene_builder: &SceneBuilder,
|
2019-05-03 21:51:36 -04:00
|
|
|
left: f32,
|
|
|
|
right: f32,
|
|
|
|
mut winding: i32,
|
2019-06-03 15:39:29 -04:00
|
|
|
tile_coords: Vector2I,
|
2019-05-03 21:51:36 -04:00
|
|
|
) {
|
|
|
|
let tile_origin_y = (tile_coords.y() * TILE_HEIGHT as i32) as f32;
|
2019-06-03 15:39:29 -04:00
|
|
|
let left = Vector2F::new(left, tile_origin_y);
|
|
|
|
let right = Vector2F::new(right, tile_origin_y);
|
2019-05-03 21:51:36 -04:00
|
|
|
|
|
|
|
let segment = if winding < 0 {
|
2019-06-03 15:39:29 -04:00
|
|
|
LineSegment2F::new(left, right)
|
2019-05-03 21:51:36 -04:00
|
|
|
} else {
|
2019-06-03 15:39:29 -04:00
|
|
|
LineSegment2F::new(right, left)
|
2019-05-03 21:51:36 -04:00
|
|
|
};
|
|
|
|
|
|
|
|
debug!(
|
|
|
|
"... emitting active fill {} -> {} winding {} @ tile {:?}",
|
|
|
|
left.x(),
|
|
|
|
right.x(),
|
|
|
|
winding,
|
|
|
|
tile_coords
|
|
|
|
);
|
|
|
|
|
|
|
|
while winding != 0 {
|
2020-02-14 23:53:27 -05:00
|
|
|
self.add_fill(scene_builder, segment, tile_coords);
|
2019-05-03 21:51:36 -04:00
|
|
|
if winding < 0 {
|
|
|
|
winding += 1
|
|
|
|
} else {
|
|
|
|
winding -= 1
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub(crate) fn generate_fill_primitives_for_line(
|
|
|
|
&mut self,
|
2020-02-14 23:53:27 -05:00
|
|
|
scene_builder: &SceneBuilder,
|
2019-06-03 15:39:29 -04:00
|
|
|
mut segment: LineSegment2F,
|
2019-05-03 21:51:36 -04:00
|
|
|
tile_y: i32,
|
|
|
|
) {
|
|
|
|
debug!(
|
|
|
|
"... generate_fill_primitives_for_line(): segment={:?} tile_y={} ({}-{})",
|
|
|
|
segment,
|
|
|
|
tile_y,
|
|
|
|
tile_y as f32 * TILE_HEIGHT as f32,
|
|
|
|
(tile_y + 1) as f32 * TILE_HEIGHT as f32
|
|
|
|
);
|
|
|
|
|
|
|
|
let winding = segment.from_x() > segment.to_x();
|
|
|
|
let (segment_left, segment_right) = if !winding {
|
|
|
|
(segment.from_x(), segment.to_x())
|
|
|
|
} else {
|
|
|
|
(segment.to_x(), segment.from_x())
|
|
|
|
};
|
|
|
|
|
|
|
|
// FIXME(pcwalton): Optimize this.
|
|
|
|
let segment_tile_left = f32::floor(segment_left) as i32 / TILE_WIDTH as i32;
|
|
|
|
let segment_tile_right =
|
|
|
|
util::alignup_i32(f32::ceil(segment_right) as i32, TILE_WIDTH as i32);
|
|
|
|
debug!(
|
|
|
|
"segment_tile_left={} segment_tile_right={} tile_rect={:?}",
|
|
|
|
segment_tile_left,
|
|
|
|
segment_tile_right,
|
|
|
|
self.tile_rect()
|
|
|
|
);
|
|
|
|
|
|
|
|
for subsegment_tile_x in segment_tile_left..segment_tile_right {
|
|
|
|
let (mut fill_from, mut fill_to) = (segment.from(), segment.to());
|
|
|
|
let subsegment_tile_right =
|
|
|
|
((i32::from(subsegment_tile_x) + 1) * TILE_HEIGHT as i32) as f32;
|
|
|
|
if subsegment_tile_right < segment_right {
|
|
|
|
let x = subsegment_tile_right;
|
2019-06-03 15:39:29 -04:00
|
|
|
let point = Vector2F::new(x, segment.solve_y_for_x(x));
|
2019-05-03 21:51:36 -04:00
|
|
|
if !winding {
|
|
|
|
fill_to = point;
|
2019-06-03 15:39:29 -04:00
|
|
|
segment = LineSegment2F::new(point, segment.to());
|
2019-05-03 21:51:36 -04:00
|
|
|
} else {
|
|
|
|
fill_from = point;
|
2019-06-03 15:39:29 -04:00
|
|
|
segment = LineSegment2F::new(segment.from(), point);
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-06-03 15:39:29 -04:00
|
|
|
let fill_segment = LineSegment2F::new(fill_from, fill_to);
|
|
|
|
let fill_tile_coords = Vector2I::new(subsegment_tile_x, tile_y);
|
2020-02-14 23:53:27 -05:00
|
|
|
self.add_fill(scene_builder, fill_segment, fill_tile_coords);
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[inline]
|
2019-06-03 15:39:29 -04:00
|
|
|
pub(crate) fn tile_coords_to_local_index(&self, coords: Vector2I) -> Option<u32> {
|
2020-02-15 21:01:23 -05:00
|
|
|
self.built_path.tiles.coords_to_index(coords).map(|index| index as u32)
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
#[inline]
|
2019-06-03 15:39:29 -04:00
|
|
|
pub(crate) fn local_tile_index_to_coords(&self, tile_index: u32) -> Vector2I {
|
2020-02-15 21:01:23 -05:00
|
|
|
self.built_path.tiles.index_to_coords(tile_index as usize)
|
2019-05-03 21:51:36 -04:00
|
|
|
}
|
2020-02-14 23:53:27 -05:00
|
|
|
|
2020-02-15 21:01:23 -05:00
|
|
|
pub(crate) fn push_mask_tile(mask_tiles: &mut Vec<MaskTile>,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_tile: &TileObjectPrimitive,
|
|
|
|
mask_tile_index: u16,
|
2020-02-15 21:01:23 -05:00
|
|
|
object_index: u16) {
|
|
|
|
mask_tiles.push(MaskTile {
|
2020-02-16 16:45:15 -05:00
|
|
|
upper_left: MaskTileVertex::new(mask_tile_index,
|
|
|
|
fill_tile.alpha_tile_index as u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::default(),
|
|
|
|
object_index,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_tile.backdrop as i16),
|
|
|
|
upper_right: MaskTileVertex::new(mask_tile_index,
|
|
|
|
fill_tile.alpha_tile_index as u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::new(1, 0),
|
|
|
|
object_index,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_tile.backdrop as i16),
|
|
|
|
lower_left: MaskTileVertex::new(mask_tile_index,
|
|
|
|
fill_tile.alpha_tile_index as u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::new(0, 1),
|
|
|
|
object_index,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_tile.backdrop as i16),
|
|
|
|
lower_right: MaskTileVertex::new(mask_tile_index,
|
|
|
|
fill_tile.alpha_tile_index as u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::splat(1),
|
|
|
|
object_index,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_tile.backdrop as i16),
|
2020-02-15 17:00:36 -05:00
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2020-02-15 21:01:23 -05:00
|
|
|
pub(crate) fn push_alpha_tile(alpha_tiles: &mut Vec<AlphaTile>,
|
2020-02-16 16:45:15 -05:00
|
|
|
mask_tile_index: u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
tile_coords: Vector2I,
|
|
|
|
object_index: u16,
|
|
|
|
paint_metadata: &PaintMetadata) {
|
2020-02-15 21:01:23 -05:00
|
|
|
alpha_tiles.push(AlphaTile {
|
2020-02-15 17:00:36 -05:00
|
|
|
upper_left: AlphaTileVertex::new(tile_coords,
|
2020-02-16 16:45:15 -05:00
|
|
|
mask_tile_index,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::default(),
|
|
|
|
object_index,
|
|
|
|
paint_metadata),
|
|
|
|
upper_right: AlphaTileVertex::new(tile_coords,
|
2020-02-16 16:45:15 -05:00
|
|
|
mask_tile_index,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::new(1, 0),
|
|
|
|
object_index,
|
|
|
|
paint_metadata),
|
|
|
|
lower_left: AlphaTileVertex::new(tile_coords,
|
2020-02-16 16:45:15 -05:00
|
|
|
mask_tile_index,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::new(0, 1),
|
|
|
|
object_index,
|
|
|
|
paint_metadata),
|
|
|
|
lower_right: AlphaTileVertex::new(tile_coords,
|
2020-02-16 16:45:15 -05:00
|
|
|
mask_tile_index,
|
2020-02-15 17:00:36 -05:00
|
|
|
Vector2I::splat(1),
|
|
|
|
object_index,
|
|
|
|
paint_metadata),
|
|
|
|
});
|
|
|
|
}
|
2020-02-14 23:53:27 -05:00
|
|
|
}
|
|
|
|
|
2020-02-15 17:00:36 -05:00
|
|
|
impl MaskTileVertex {
|
|
|
|
#[inline]
|
2020-02-16 16:45:15 -05:00
|
|
|
fn new(mask_index: u16,
|
|
|
|
fill_index: u16,
|
|
|
|
tile_offset: Vector2I,
|
|
|
|
object_index: u16,
|
|
|
|
backdrop: i16)
|
2020-02-15 17:00:36 -05:00
|
|
|
-> MaskTileVertex {
|
2020-02-16 16:45:15 -05:00
|
|
|
let mask_uv = calculate_mask_uv(mask_index, tile_offset);
|
|
|
|
let fill_uv = calculate_mask_uv(fill_index, tile_offset);
|
2020-02-15 17:00:36 -05:00
|
|
|
MaskTileVertex {
|
|
|
|
mask_u: mask_uv.x() as u16,
|
|
|
|
mask_v: mask_uv.y() as u16,
|
2020-02-16 16:45:15 -05:00
|
|
|
fill_u: fill_uv.x() as u16,
|
|
|
|
fill_v: fill_uv.y() as u16,
|
2020-02-15 17:00:36 -05:00
|
|
|
backdrop,
|
|
|
|
object_index,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl AlphaTileVertex {
|
|
|
|
#[inline]
|
|
|
|
fn new(tile_origin: Vector2I,
|
|
|
|
tile_index: u16,
|
|
|
|
tile_offset: Vector2I,
|
|
|
|
object_index: u16,
|
|
|
|
paint_metadata: &PaintMetadata)
|
|
|
|
-> AlphaTileVertex {
|
|
|
|
let tile_position = tile_origin + tile_offset;
|
|
|
|
let color_uv = paint_metadata.calculate_tex_coords(tile_position).scale(65535.0).to_i32();
|
|
|
|
let mask_uv = calculate_mask_uv(tile_index, tile_offset);
|
|
|
|
|
|
|
|
AlphaTileVertex {
|
|
|
|
tile_x: tile_position.x() as i16,
|
|
|
|
tile_y: tile_position.y() as i16,
|
|
|
|
color_u: color_uv.x() as u16,
|
|
|
|
color_v: color_uv.y() as u16,
|
|
|
|
mask_u: mask_uv.x() as u16,
|
|
|
|
mask_v: mask_uv.y() as u16,
|
|
|
|
object_index,
|
|
|
|
pad: 0,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[inline]
|
|
|
|
pub fn tile_position(&self) -> Vector2I {
|
|
|
|
Vector2I::new(self.tile_x as i32, self.tile_y as i32)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn calculate_mask_uv(tile_index: u16, tile_offset: Vector2I) -> Vector2I {
|
|
|
|
let mask_u = tile_index as i32 % MASK_TILES_ACROSS as i32;
|
|
|
|
let mask_v = tile_index as i32 / MASK_TILES_ACROSS as i32;
|
|
|
|
let mask_scale = 65535.0 / MASK_TILES_ACROSS as f32;
|
|
|
|
let mask_uv = Vector2I::new(mask_u, mask_v) + tile_offset;
|
|
|
|
mask_uv.to_f32().scale(mask_scale).to_i32()
|
2020-02-14 23:53:27 -05:00
|
|
|
}
|
2020-02-17 17:44:48 -05:00
|
|
|
|
|
|
|
impl CulledTiles {
|
|
|
|
fn push_mask_tiles(&mut self, built_path: &BuiltPath) {
|
|
|
|
match built_path.fill_rule {
|
|
|
|
FillRule::Winding => self.mask_winding_tiles.extend_from_slice(&built_path.mask_tiles),
|
|
|
|
FillRule::EvenOdd => self.mask_evenodd_tiles.extend_from_slice(&built_path.mask_tiles),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|