113 lines
3.3 KiB
Rust
113 lines
3.3 KiB
Rust
// pathfinder/renderer/src/gpu_data.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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//! Packed data ready to be sent to the GPU.
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use crate::options::BoundingQuad;
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use crate::tile_map::DenseTileMap;
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use pathfinder_geometry::line_segment::{LineSegmentU4, LineSegmentU8};
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use pathfinder_geometry::vector::Vector2I;
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use pathfinder_geometry::rect::RectF;
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use std::fmt::{Debug, Formatter, Result as DebugResult};
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use std::time::Duration;
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#[derive(Debug)]
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pub(crate) struct BuiltObject {
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pub bounds: RectF,
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pub fills: Vec<FillBatchPrimitive>,
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pub alpha_tiles: Vec<AlphaTileBatchPrimitive>,
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pub tiles: DenseTileMap<TileObjectPrimitive>,
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}
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pub enum RenderCommand {
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Start { path_count: usize, bounding_quad: BoundingQuad },
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AddPaintData(PaintData),
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AddFills(Vec<FillBatchPrimitive>),
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FlushFills,
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AlphaTile(Vec<AlphaTileBatchPrimitive>),
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SolidTile(Vec<SolidTileBatchPrimitive>),
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Finish { build_time: Duration },
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}
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#[derive(Clone, Debug)]
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pub struct PaintData {
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pub size: Vector2I,
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pub texels: Vec<u8>,
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}
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#[derive(Clone, Copy, Debug)]
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pub struct FillObjectPrimitive {
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pub px: LineSegmentU4,
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pub subpx: LineSegmentU8,
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pub tile_x: i16,
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pub tile_y: i16,
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}
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#[derive(Clone, Copy, Debug)]
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#[repr(C)]
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pub struct TileObjectPrimitive {
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/// If `u16::MAX`, then this is a solid tile.
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pub alpha_tile_index: u16,
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pub backdrop: i8,
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}
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// FIXME(pcwalton): Move `subpx` before `px` and remove `repr(packed)`.
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#[derive(Clone, Copy, Debug, Default)]
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#[repr(packed)]
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pub struct FillBatchPrimitive {
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pub px: LineSegmentU4,
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pub subpx: LineSegmentU8,
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pub alpha_tile_index: u16,
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}
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#[derive(Clone, Copy, Debug)]
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#[repr(C)]
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pub struct SolidTileBatchPrimitive {
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pub tile_x: i16,
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pub tile_y: i16,
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pub origin_u: u16,
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pub origin_v: u16,
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pub object_index: u16,
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pub pad: u16,
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}
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#[derive(Clone, Copy, Debug, Default)]
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#[repr(C)]
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pub struct AlphaTileBatchPrimitive {
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pub tile_x_lo: u8,
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pub tile_y_lo: u8,
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pub tile_hi: u8,
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pub backdrop: i8,
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pub object_index: u16,
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pub tile_index: u16,
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pub origin_u: u16,
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pub origin_v: u16,
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}
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impl Debug for RenderCommand {
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fn fmt(&self, formatter: &mut Formatter) -> DebugResult {
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match *self {
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RenderCommand::Start { .. } => write!(formatter, "Start"),
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RenderCommand::AddPaintData(ref paint_data) => {
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write!(formatter, "AddPaintData({}x{})", paint_data.size.x(), paint_data.size.y())
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}
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RenderCommand::AddFills(ref fills) => write!(formatter, "AddFills(x{})", fills.len()),
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RenderCommand::FlushFills => write!(formatter, "FlushFills"),
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RenderCommand::AlphaTile(ref tiles) => {
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write!(formatter, "AlphaTile(x{})", tiles.len())
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}
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RenderCommand::SolidTile(ref tiles) => {
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write!(formatter, "SolidTile(x{})", tiles.len())
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}
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RenderCommand::Finish { .. } => write!(formatter, "Finish"),
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}
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}
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}
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