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Merge pull request #148 from bzm3r/master 

Constrain sizes of solid tile and alpha tile batches being sent to the GPU
This commit is contained in:
Patrick Walton 2019-05-13 07:59:44 -07:00 committed by GitHub
parent 639a8f39e8 753a254726
commit b4bdbec4aa
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 188 additions and 56 deletions
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6
renderer/src/builder.rs
View File

@ -110,10 +110,10 @@ impl<'a> SceneBuilder<'a> {
let path_count = self.scene.paths.len() as u32;
let solid_tiles = self.z_buffer.build_solid_tiles(0..path_count);
if !solid_tiles.is_empty() {
self.listener.send(RenderCommand::SolidTile(solid_tiles));
self.listener.send(RenderCommand::AddSolidTiles(solid_tiles));
}
if !alpha_tiles.is_empty() {
self.listener.send(RenderCommand::AlphaTile(alpha_tiles));
self.listener.send(RenderCommand::AddAlphaTiles(alpha_tiles));
}
}
@ -121,6 +121,8 @@ impl<'a> SceneBuilder<'a> {
self.listener.send(RenderCommand::FlushFills);
self.cull_alpha_tiles(&mut alpha_tiles);
self.pack_alpha_tiles(alpha_tiles);
self.listener.send(RenderCommand::FlushSolidTiles);
self.listener.send(RenderCommand::FlushAlphaTiles);
}
}

222
renderer/src/gpu/renderer.rs
View File

@ -45,6 +45,8 @@ const FILL_COLORS_TEXTURE_WIDTH: i32 = 256;
const FILL_COLORS_TEXTURE_HEIGHT: i32 = 256;
const MAX_FILLS_PER_BATCH: usize = 0x4000;
const MAX_ALPHA_TILES_PER_BATCH: usize = 0x4000;
const MAX_SOLID_TILES_PER_BATCH: usize = 0x4000;
pub struct Renderer<D>
where
@ -87,6 +89,8 @@ where
// Rendering state
mask_framebuffer_cleared: bool,
buffered_fills: Vec<FillBatchPrimitive>,
buffered_alpha_tiles: Vec<AlphaTileBatchPrimitive>,
buffered_solid_tiles: Vec<SolidTileBatchPrimitive>,
// Debug
pub stats: RenderStats,
@ -216,6 +220,8 @@ where
mask_framebuffer_cleared: false,
buffered_fills: vec![],
buffered_alpha_tiles: vec![],
buffered_solid_tiles: vec![],
render_mode: RenderMode::default(),
use_depth: false,
@ -236,7 +242,10 @@ where
pub fn render_command(&mut self, command: &RenderCommand) {
match *command {
RenderCommand::Start { bounding_quad, path_count } => {
RenderCommand::Start {
bounding_quad,
path_count,
} => {
if self.use_depth {
self.draw_stencil(&bounding_quad);
}
@ -248,17 +257,15 @@ where
self.begin_composite_timer_query();
self.draw_buffered_fills();
}
RenderCommand::SolidTile(ref solid_tiles) => {
let count = solid_tiles.len();
self.stats.solid_tile_count += count;
self.upload_solid_tiles(solid_tiles);
self.draw_solid_tiles(count as u32);
RenderCommand::AddSolidTiles(ref solid_tiles) => self.add_solid_tiles(solid_tiles),
RenderCommand::FlushSolidTiles => {
self.begin_composite_timer_query();
self.draw_buffered_solid_tiles();
}
RenderCommand::AlphaTile(ref alpha_tiles) => {
let count = alpha_tiles.len();
self.stats.alpha_tile_count += count;
self.upload_alpha_tiles(alpha_tiles);
self.draw_alpha_tiles(count as u32);
RenderCommand::AddAlphaTiles(ref alpha_tiles) => self.add_alpha_tiles(alpha_tiles),
RenderCommand::FlushAlphaTiles => {
self.begin_composite_timer_query();
self.draw_buffered_alpha_tiles();
}
RenderCommand::Finish { .. } => {}
}
@ -270,7 +277,8 @@ where
}
self.end_composite_timer_query();
self.pending_timers.push_back(mem::replace(&mut self.current_timers, RenderTimers::new()));
self.pending_timers
.push_back(mem::replace(&mut self.current_timers, RenderTimers::new()));
}
pub fn draw_debug_ui(&self) {
@ -304,7 +312,10 @@ where
self.free_timer_queries.extend(timers.stage_0.into_iter());
self.free_timer_queries.push(timers.stage_1.unwrap());
Some(RenderTime { stage_0: total_stage_0_time, stage_1: stage_1_time })
Some(RenderTime {
stage_0: total_stage_0_time,
stage_1: stage_1_time,
})
}
#[inline]
@ -322,7 +333,9 @@ where
#[inline]
pub fn set_main_framebuffer_size(&mut self, new_framebuffer_size: Point2DI32) {
self.debug_ui_presenter.ui_presenter.set_framebuffer_size(new_framebuffer_size);
self.debug_ui_presenter
.ui_presenter
.set_framebuffer_size(new_framebuffer_size);
}
#[inline]
@ -358,24 +371,6 @@ where
.upload_to_texture(&self.fill_colors_texture, size, &fill_colors);
}
fn upload_solid_tiles(&mut self, solid_tiles: &[SolidTileBatchPrimitive]) {
self.device.allocate_buffer(
&self.solid_tile_vertex_array().vertex_buffer,
BufferData::Memory(&solid_tiles),
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
}
fn upload_alpha_tiles(&mut self, alpha_tiles: &[AlphaTileBatchPrimitive]) {
self.device.allocate_buffer(
&self.alpha_tile_vertex_array().vertex_buffer,
BufferData::Memory(&alpha_tiles),
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
}
fn clear_mask_framebuffer(&mut self) {
self.device.bind_framebuffer(&self.mask_framebuffer);
@ -409,6 +404,60 @@ where
self.current_timers.stage_0.push(timer_query);
}
fn add_solid_tiles(&mut self, mut solid_tiles: &[SolidTileBatchPrimitive]) {
if solid_tiles.is_empty() {
return;
}
let timer_query = self.allocate_timer_query();
self.device.begin_timer_query(&timer_query);
self.stats.solid_tile_count += solid_tiles.len();
while !solid_tiles.is_empty() {
let count = cmp::min(
solid_tiles.len(),
MAX_SOLID_TILES_PER_BATCH - self.buffered_solid_tiles.len(),
);
self.buffered_solid_tiles
.extend_from_slice(&solid_tiles[0..count]);
solid_tiles = &solid_tiles[count..];
if self.buffered_solid_tiles.len() == MAX_SOLID_TILES_PER_BATCH {
self.draw_buffered_solid_tiles();
}
}
self.device.end_timer_query(&timer_query);
self.current_timers.stage_0.push(timer_query);
}
fn add_alpha_tiles(&mut self, mut alpha_tiles: &[AlphaTileBatchPrimitive]) {
if alpha_tiles.is_empty() {
return;
}
let timer_query = self.allocate_timer_query();
self.device.begin_timer_query(&timer_query);
self.stats.alpha_tile_count += alpha_tiles.len();
while !alpha_tiles.is_empty() {
let count = cmp::min(
alpha_tiles.len(),
MAX_ALPHA_TILES_PER_BATCH - self.buffered_alpha_tiles.len(),
);
self.buffered_alpha_tiles
.extend_from_slice(&alpha_tiles[0..count]);
alpha_tiles = &alpha_tiles[count..];
if self.buffered_alpha_tiles.len() == MAX_ALPHA_TILES_PER_BATCH {
self.draw_buffered_alpha_tiles();
}
}
self.device.end_timer_query(&timer_query);
self.current_timers.stage_0.push(timer_query);
}
fn draw_buffered_fills(&mut self) {
if self.buffered_fills.is_empty() {
return;
@ -461,12 +510,24 @@ where
self.buffered_fills.clear()
}
fn draw_alpha_tiles(&mut self, count: u32) {
self.bind_draw_framebuffer();
fn draw_buffered_alpha_tiles(&mut self) {
if self.buffered_alpha_tiles.is_empty() {
return;
}
let alpha_tile_vertex_array = self.alpha_tile_vertex_array();
self.device.allocate_buffer(
&alpha_tile_vertex_array.vertex_buffer,
BufferData::Memory(&self.buffered_alpha_tiles),
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
let alpha_tile_program = self.alpha_tile_program();
self.bind_draw_framebuffer();
self.device
.bind_vertex_array(&alpha_tile_vertex_array.vertex_array);
self.device.use_program(&alpha_tile_program.program);
@ -534,16 +595,35 @@ where
stencil: self.stencil_state(),
..RenderState::default()
};
self.device
.draw_arrays_instanced(Primitive::TriangleFan, 4, count, &render_state);
debug_assert!(self.buffered_alpha_tiles.len() <= u32::MAX as usize);
self.device.draw_arrays_instanced(
Primitive::TriangleFan,
4,
self.buffered_alpha_tiles.len() as u32,
&render_state,
);
self.buffered_alpha_tiles.clear();
}
fn draw_solid_tiles(&mut self, count: u32) {
self.bind_draw_framebuffer();
fn draw_buffered_solid_tiles(&mut self) {
if self.buffered_solid_tiles.is_empty() {
return;
}
let solid_tile_vertex_array = self.solid_tile_vertex_array();
self.device.allocate_buffer(
&solid_tile_vertex_array.vertex_buffer,
BufferData::Memory(&self.buffered_solid_tiles),
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
let solid_tile_program = self.solid_tile_program();
self.bind_draw_framebuffer();
self.device
.bind_vertex_array(&solid_tile_vertex_array.vertex_array);
self.device.use_program(&solid_tile_program.program);
@ -598,8 +678,15 @@ where
stencil: self.stencil_state(),
..RenderState::default()
};
self.device
.draw_arrays_instanced(Primitive::TriangleFan, 4, count, &render_state);
debug_assert!(self.buffered_solid_tiles.len() <= u32::MAX as usize);
self.device.draw_arrays_instanced(
Primitive::TriangleFan,
4,
self.buffered_solid_tiles.len() as u32,
&render_state,
);
self.buffered_solid_tiles.clear();
}
fn postprocess(&mut self) {
@ -888,7 +975,11 @@ where
}
fn end_composite_timer_query(&mut self) {
let query = self.current_timers.stage_1.as_ref().expect("No stage 1 timer query yet?!");
let query = self
.current_timers
.stage_1
.as_ref()
.expect("No stage 1 timer query yet?!");
self.device.end_timer_query(&query);
}
}
@ -1001,7 +1092,17 @@ where
alpha_tile_program: &AlphaTileProgram<D>,
quad_vertex_positions_buffer: &D::Buffer,
) -> AlphaTileVertexArray<D> {
let (vertex_array, vertex_buffer) = (device.create_vertex_array(), device.create_buffer());
let vertex_array = device.create_vertex_array();
let vertex_buffer = device.create_buffer();
let vertex_buffer_data: BufferData<AlphaTileBatchPrimitive> =
BufferData::Uninitialized(MAX_ALPHA_TILES_PER_BATCH);
device.allocate_buffer(
&vertex_buffer,
vertex_buffer_data,
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
let tess_coord_attr = device.get_vertex_attr(&alpha_tile_program.program, "TessCoord");
let tile_origin_attr = device.get_vertex_attr(&alpha_tile_program.program, "TileOrigin");
@ -1073,7 +1174,17 @@ where
solid_tile_program: &SolidTileProgram<D>,
quad_vertex_positions_buffer: &D::Buffer,
) -> SolidTileVertexArray<D> {
let (vertex_array, vertex_buffer) = (device.create_vertex_array(), device.create_buffer());
let vertex_array = device.create_vertex_array();
let vertex_buffer = device.create_buffer();
let vertex_buffer_data: BufferData<AlphaTileBatchPrimitive> =
BufferData::Uninitialized(MAX_SOLID_TILES_PER_BATCH);
device.allocate_buffer(
&vertex_buffer,
vertex_buffer_data,
BufferTarget::Vertex,
BufferUploadMode::Dynamic,
);
let tess_coord_attr = device.get_vertex_attr(&solid_tile_program.program, "TessCoord");
let tile_origin_attr = device.get_vertex_attr(&solid_tile_program.program, "TileOrigin");
@ -1512,7 +1623,10 @@ where
#[inline]
pub fn full_window(window_size: Point2DI32) -> DestFramebuffer<D> {
let viewport = RectI32::new(Point2DI32::default(), window_size);
DestFramebuffer::Default { viewport, window_size }
DestFramebuffer::Default {
viewport,
window_size,
}
}
fn window_size(&self, device: &D) -> Point2DI32 {
@ -1575,14 +1689,23 @@ impl Div<usize> for RenderStats {
}
}
struct RenderTimers<D> where D: Device {
struct RenderTimers<D>
where
D: Device,
{
stage_0: Vec<D::TimerQuery>,
stage_1: Option<D::TimerQuery>,
}
impl<D> RenderTimers<D> where D: Device {
impl<D> RenderTimers<D>
where
D: Device,
{
fn new() -> RenderTimers<D> {
RenderTimers { stage_0: vec![], stage_1: None }
RenderTimers {
stage_0: vec![],
stage_1: None,
}
}
}
@ -1595,7 +1718,10 @@ pub struct RenderTime {
impl Default for RenderTime {
#[inline]
fn default() -> RenderTime {
RenderTime { stage_0: Duration::new(0, 0), stage_1: Duration::new(0, 0) }
RenderTime {
stage_0: Duration::new(0, 0),
stage_1: Duration::new(0, 0),
}
}
}

16
renderer/src/gpu_data.rs
View File

@ -31,8 +31,10 @@ pub enum RenderCommand {
AddShaders(Vec<ObjectShader>),
AddFills(Vec<FillBatchPrimitive>),
FlushFills,
AlphaTile(Vec<AlphaTileBatchPrimitive>),
SolidTile(Vec<SolidTileBatchPrimitive>),
AddAlphaTiles(Vec<AlphaTileBatchPrimitive>),
FlushAlphaTiles,
AddSolidTiles(Vec<SolidTileBatchPrimitive>),
FlushSolidTiles,
Finish { build_time: Duration },
}
@ -89,12 +91,14 @@ impl Debug for RenderCommand {
}
RenderCommand::AddFills(ref fills) => write!(formatter, "AddFills(x{})", fills.len()),
RenderCommand::FlushFills => write!(formatter, "FlushFills"),
RenderCommand::AlphaTile(ref tiles) => {
write!(formatter, "AlphaTile(x{})", tiles.len())
RenderCommand::AddAlphaTiles(ref tiles) => {
write!(formatter, "AddAlphaTiles(x{})", tiles.len())
}
RenderCommand::SolidTile(ref tiles) => {
write!(formatter, "SolidTile(x{})", tiles.len())
RenderCommand::FlushAlphaTiles => write!(formatter, "FlushAlphaTiles"),
RenderCommand::AddSolidTiles(ref tiles) => {
write!(formatter, "AddSolidTiles(x{})", tiles.len())
}
RenderCommand::FlushSolidTiles => write!(formatter, "FlushSolidTiles"),
RenderCommand::Finish { .. } => write!(formatter, "Finish"),
}
}