diff options
Diffstat (limited to 'gfx/wr/webrender/src/prepare.rs')
| -rw-r--r-- | gfx/wr/webrender/src/prepare.rs | 594 |
1 files changed, 24 insertions, 570 deletions
diff --git a/gfx/wr/webrender/src/prepare.rs b/gfx/wr/webrender/src/prepare.rs index a59eca0670..d9b4521cfc 100644 --- a/gfx/wr/webrender/src/prepare.rs +++ b/gfx/wr/webrender/src/prepare.rs @@ -6,13 +6,13 @@ //! //! TODO: document this! -use api::{ColorF, PremultipliedColorF, PropertyBinding}; +use api::{PremultipliedColorF, PropertyBinding}; use api::{BoxShadowClipMode, BorderStyle, ClipMode}; use api::units::*; use euclid::Scale; use smallvec::SmallVec; use crate::composite::CompositorSurfaceKind; -use crate::command_buffer::{PrimitiveCommand, QuadFlags, CommandBufferIndex}; +use crate::command_buffer::{PrimitiveCommand, CommandBufferIndex}; use crate::image_tiling::{self, Repetition}; use crate::border::{get_max_scale_for_border, build_border_instances}; use crate::clip::{ClipStore, ClipNodeRange}; @@ -20,32 +20,29 @@ use crate::spatial_tree::{SpatialNodeIndex, SpatialTree}; use crate::clip::{ClipDataStore, ClipNodeFlags, ClipChainInstance, ClipItemKind}; use crate::frame_builder::{FrameBuildingContext, FrameBuildingState, PictureContext, PictureState}; use crate::gpu_cache::{GpuCacheHandle, GpuDataRequest}; -use crate::gpu_types::{BrushFlags, TransformPaletteId, QuadSegment}; +use crate::gpu_types::BrushFlags; use crate::internal_types::{FastHashMap, PlaneSplitAnchor, Filter}; use crate::picture::{PicturePrimitive, SliceId, ClusterFlags, PictureCompositeMode}; use crate::picture::{PrimitiveList, PrimitiveCluster, SurfaceIndex, TileCacheInstance, SubpixelMode, Picture3DContext}; use crate::prim_store::line_dec::MAX_LINE_DECORATION_RESOLUTION; use crate::prim_store::*; +use crate::quad; +use crate::pattern::Pattern; use crate::prim_store::gradient::GradientGpuBlockBuilder; use crate::render_backend::DataStores; use crate::render_task_graph::RenderTaskId; use crate::render_task_cache::RenderTaskCacheKeyKind; use crate::render_task_cache::{RenderTaskCacheKey, to_cache_size, RenderTaskParent}; use crate::render_task::{RenderTaskKind, RenderTask, SubPass, MaskSubPass, EmptyTask}; -use crate::renderer::{GpuBufferBuilderF, GpuBufferAddress}; -use crate::segment::{EdgeAaSegmentMask, SegmentBuilder}; -use crate::space::SpaceMapper; -use crate::util::{clamp_to_scale_factor, pack_as_float, MaxRect}; +use crate::segment::SegmentBuilder; +use crate::util::{clamp_to_scale_factor, pack_as_float}; use crate::visibility::{compute_conservative_visible_rect, PrimitiveVisibility, VisibilityState}; const MAX_MASK_SIZE: i32 = 4096; -const MIN_BRUSH_SPLIT_SIZE: f32 = 256.0; const MIN_BRUSH_SPLIT_AREA: f32 = 128.0 * 128.0; -const MIN_AA_SEGMENTS_SIZE: f32 = 4.0; - pub fn prepare_primitives( store: &mut PrimitiveStore, prim_list: &mut PrimitiveList, @@ -141,110 +138,6 @@ fn can_use_clip_chain_for_quad_path( true } -/// Describes how clipping affects the rendering of a quad primitive. -/// -/// As a general rule, parts of the quad that require masking are prerendered in an -/// intermediate target and the mask is applied using multiplicative blending to -/// the intermediate result before compositing it into the destination target. -/// -/// Each segment can opt in or out of masking independently. -#[derive(Debug, Copy, Clone)] -pub enum QuadRenderStrategy { - /// The quad is not affected by any mask and is drawn directly in the destination - /// target. - Direct, - /// The quad is drawn entirely in an intermediate target and a mask is applied - /// before compositing in the destination target. - Indirect, - /// A rounded rectangle clip is applied to the quad primitive via a nine-patch. - /// The segments of the nine-patch that require a mask are rendered and masked in - /// an intermediate target, while other segments are drawn directly in the destination - /// target. - NinePatch { - radius: LayoutVector2D, - clip_rect: LayoutRect, - }, - /// Split the primitive into coarse tiles so that each tile independently - /// has the opportunity to be drawn directly in the destination target or - /// via an intermediate target if it is affected by a mask. - Tiled { - x_tiles: u16, - y_tiles: u16, - } -} - -fn get_prim_render_strategy( - prim_spatial_node_index: SpatialNodeIndex, - clip_chain: &ClipChainInstance, - clip_store: &ClipStore, - data_stores: &DataStores, - can_use_nine_patch: bool, - spatial_tree: &SpatialTree, -) -> QuadRenderStrategy { - if !clip_chain.needs_mask { - return QuadRenderStrategy::Direct - } - - fn tile_count_for_size(size: f32) -> u16 { - (size / MIN_BRUSH_SPLIT_SIZE).min(4.0).max(1.0).ceil() as u16 - } - - let prim_coverage_size = clip_chain.pic_coverage_rect.size(); - let x_tiles = tile_count_for_size(prim_coverage_size.width); - let y_tiles = tile_count_for_size(prim_coverage_size.height); - let try_split_prim = x_tiles > 1 || y_tiles > 1; - - if !try_split_prim { - return QuadRenderStrategy::Indirect; - } - - if can_use_nine_patch && clip_chain.clips_range.count == 1 { - let clip_instance = clip_store.get_instance_from_range(&clip_chain.clips_range, 0); - let clip_node = &data_stores.clip[clip_instance.handle]; - - if let ClipItemKind::RoundedRectangle { ref radius, mode: ClipMode::Clip, rect, .. } = clip_node.item.kind { - let max_corner_width = radius.top_left.width - .max(radius.bottom_left.width) - .max(radius.top_right.width) - .max(radius.bottom_right.width); - let max_corner_height = radius.top_left.height - .max(radius.bottom_left.height) - .max(radius.top_right.height) - .max(radius.bottom_right.height); - - if max_corner_width <= 0.5 * rect.size().width && - max_corner_height <= 0.5 * rect.size().height { - - let clip_prim_coords_match = spatial_tree.is_matching_coord_system( - prim_spatial_node_index, - clip_node.item.spatial_node_index, - ); - - if clip_prim_coords_match { - let map_clip_to_prim = SpaceMapper::new_with_target( - prim_spatial_node_index, - clip_node.item.spatial_node_index, - LayoutRect::max_rect(), - spatial_tree, - ); - - if let Some(rect) = map_clip_to_prim.map(&rect) { - return QuadRenderStrategy::NinePatch { - radius: LayoutVector2D::new(max_corner_width, max_corner_height), - clip_rect: rect, - }; - } - } - } - } - } - - QuadRenderStrategy::Tiled { - x_tiles, - y_tiles, - } -} - fn prepare_prim_for_render( store: &mut PrimitiveStore, prim_instance_index: usize, @@ -712,334 +605,32 @@ fn prepare_interned_prim_for_render( } ); } else { - let map_prim_to_surface = frame_context.spatial_tree.get_relative_transform( - prim_spatial_node_index, - pic_context.raster_spatial_node_index, - ); - let prim_is_2d_scale_translation = map_prim_to_surface.is_2d_scale_translation(); - let prim_is_2d_axis_aligned = map_prim_to_surface.is_2d_axis_aligned(); - - let strategy = get_prim_render_strategy( - prim_spatial_node_index, - &prim_instance.vis.clip_chain, - frame_state.clip_store, - data_stores, - prim_is_2d_scale_translation, - frame_context.spatial_tree, - ); - let prim_data = &data_stores.prim[*data_handle]; - let (color, is_opaque) = match prim_data.kind { - PrimitiveTemplateKind::Clear => { - // Opaque black with operator dest out - (ColorF::BLACK, false) - } + let pattern = match prim_data.kind { + PrimitiveTemplateKind::Clear => Pattern::clear(), PrimitiveTemplateKind::Rectangle { ref color, .. } => { let color = frame_context.scene_properties.resolve_color(color); - - (color, color.a >= 1.0) + Pattern::color(color) } }; - let premul_color = color.premultiplied(); - - let mut quad_flags = QuadFlags::empty(); - - // Only use AA edge instances if the primitive is large enough to require it - let prim_size = prim_data.common.prim_rect.size(); - if prim_size.width > MIN_AA_SEGMENTS_SIZE && prim_size.height > MIN_AA_SEGMENTS_SIZE { - quad_flags |= QuadFlags::USE_AA_SEGMENTS; - } - - if is_opaque { - quad_flags |= QuadFlags::IS_OPAQUE; - } - let needs_scissor = !prim_is_2d_scale_translation; - if !needs_scissor { - quad_flags |= QuadFlags::APPLY_DEVICE_CLIP; - } - - // TODO(gw): For now, we don't select per-edge AA at all if the primitive - // has a 2d transform, which matches existing behavior. However, - // as a follow up, we can now easily check if we have a 2d-aligned - // primitive on a subpixel boundary, and enable AA along those edge(s). - let aa_flags = if prim_is_2d_axis_aligned { - EdgeAaSegmentMask::empty() - } else { - EdgeAaSegmentMask::all() - }; - - let transform_id = frame_state.transforms.get_id( + quad::push_quad( + &pattern, + &prim_data.common.prim_rect, + prim_instance_index, prim_spatial_node_index, - pic_context.raster_spatial_node_index, - frame_context.spatial_tree, - ); - - // TODO(gw): Perhaps rather than writing untyped data here (we at least do validate - // the written block count) to gpu-buffer, we could add a trait for - // writing typed data? - let main_prim_address = write_prim_blocks( - &mut frame_state.frame_gpu_data.f32, - prim_data.common.prim_rect, - prim_instance.vis.clip_chain.local_clip_rect, - premul_color, - &[], + &prim_instance.vis.clip_chain, + device_pixel_scale, + frame_context, + pic_context, + targets, + &data_stores.clip, + frame_state, + pic_state, + scratch, ); - match strategy { - QuadRenderStrategy::Direct => { - frame_state.push_prim( - &PrimitiveCommand::quad( - prim_instance_index, - main_prim_address, - transform_id, - quad_flags, - aa_flags, - ), - prim_spatial_node_index, - targets, - ); - } - QuadRenderStrategy::Indirect => { - let surface = &frame_state.surfaces[pic_context.surface_index.0]; - let Some(clipped_surface_rect) = surface.get_surface_rect( - &prim_instance.vis.clip_chain.pic_coverage_rect, - frame_context.spatial_tree, - ) else { - return; - }; - - let p0 = clipped_surface_rect.min.to_f32(); - let p1 = clipped_surface_rect.max.to_f32(); - - let segment = add_segment( - p0.x, - p0.y, - p1.x, - p1.y, - true, - prim_instance, - prim_spatial_node_index, - pic_context.raster_spatial_node_index, - main_prim_address, - transform_id, - aa_flags, - quad_flags, - device_pixel_scale, - needs_scissor, - frame_state, - ); - - add_composite_prim( - prim_instance_index, - LayoutRect::new(p0.cast_unit(), p1.cast_unit()), - premul_color, - quad_flags, - frame_state, - targets, - &[segment], - ); - } - QuadRenderStrategy::Tiled { x_tiles, y_tiles } => { - let surface = &frame_state.surfaces[pic_context.surface_index.0]; - - let Some(clipped_surface_rect) = surface.get_surface_rect( - &prim_instance.vis.clip_chain.pic_coverage_rect, - frame_context.spatial_tree, - ) else { - return; - }; - - let unclipped_surface_rect = surface.map_to_device_rect( - &prim_instance.vis.clip_chain.pic_coverage_rect, - frame_context.spatial_tree, - ); - - scratch.quad_segments.clear(); - - let mut x_coords = vec![clipped_surface_rect.min.x]; - let mut y_coords = vec![clipped_surface_rect.min.y]; - - let dx = (clipped_surface_rect.max.x - clipped_surface_rect.min.x) as f32 / x_tiles as f32; - let dy = (clipped_surface_rect.max.y - clipped_surface_rect.min.y) as f32 / y_tiles as f32; - - for x in 1 .. (x_tiles as i32) { - x_coords.push((clipped_surface_rect.min.x as f32 + x as f32 * dx).round() as i32); - } - for y in 1 .. (y_tiles as i32) { - y_coords.push((clipped_surface_rect.min.y as f32 + y as f32 * dy).round() as i32); - } - - x_coords.push(clipped_surface_rect.max.x); - y_coords.push(clipped_surface_rect.max.y); - - for y in 0 .. y_coords.len()-1 { - let y0 = y_coords[y]; - let y1 = y_coords[y+1]; - - if y1 <= y0 { - continue; - } - - for x in 0 .. x_coords.len()-1 { - let x0 = x_coords[x]; - let x1 = x_coords[x+1]; - - if x1 <= x0 { - continue; - } - - let create_task = true; - - let segment = add_segment( - x0 as f32, - y0 as f32, - x1 as f32, - y1 as f32, - create_task, - prim_instance, - prim_spatial_node_index, - pic_context.raster_spatial_node_index, - main_prim_address, - transform_id, - aa_flags, - quad_flags, - device_pixel_scale, - needs_scissor, - frame_state, - ); - scratch.quad_segments.push(segment); - } - } - - add_composite_prim( - prim_instance_index, - unclipped_surface_rect.cast_unit(), - premul_color, - quad_flags, - frame_state, - targets, - &scratch.quad_segments, - ); - } - QuadRenderStrategy::NinePatch { clip_rect, radius } => { - let surface = &frame_state.surfaces[pic_context.surface_index.0]; - let Some(clipped_surface_rect) = surface.get_surface_rect( - &prim_instance.vis.clip_chain.pic_coverage_rect, - frame_context.spatial_tree, - ) else { - return; - }; - - let unclipped_surface_rect = surface.map_to_device_rect( - &prim_instance.vis.clip_chain.pic_coverage_rect, - frame_context.spatial_tree, - ); - - let local_corner_0 = LayoutRect::new( - clip_rect.min, - clip_rect.min + radius, - ); - - let local_corner_1 = LayoutRect::new( - clip_rect.max - radius, - clip_rect.max, - ); - - let pic_corner_0 = pic_state.map_local_to_pic.map(&local_corner_0).unwrap(); - let pic_corner_1 = pic_state.map_local_to_pic.map(&local_corner_1).unwrap(); - - let surface_rect_0 = surface.map_to_device_rect( - &pic_corner_0, - frame_context.spatial_tree, - ).round_out().to_i32(); - - let surface_rect_1 = surface.map_to_device_rect( - &pic_corner_1, - frame_context.spatial_tree, - ).round_out().to_i32(); - - let p0 = surface_rect_0.min; - let p1 = surface_rect_0.max; - let p2 = surface_rect_1.min; - let p3 = surface_rect_1.max; - - let mut x_coords = [p0.x, p1.x, p2.x, p3.x]; - let mut y_coords = [p0.y, p1.y, p2.y, p3.y]; - - x_coords.sort_by(|a, b| a.partial_cmp(b).unwrap()); - y_coords.sort_by(|a, b| a.partial_cmp(b).unwrap()); - - scratch.quad_segments.clear(); - - for y in 0 .. y_coords.len()-1 { - let y0 = y_coords[y]; - let y1 = y_coords[y+1]; - - if y1 <= y0 { - continue; - } - - for x in 0 .. x_coords.len()-1 { - let x0 = x_coords[x]; - let x1 = x_coords[x+1]; - - if x1 <= x0 { - continue; - } - - let create_task = if x == 1 || y == 1 { - false - } else { - true - }; - - let r = DeviceIntRect::new( - DeviceIntPoint::new(x0, y0), - DeviceIntPoint::new(x1, y1), - ); - - let r = match r.intersection(&clipped_surface_rect) { - Some(r) => r, - None => { - continue; - } - }; - - let segment = add_segment( - r.min.x as f32, - r.min.y as f32, - r.max.x as f32, - r.max.y as f32, - create_task, - prim_instance, - prim_spatial_node_index, - pic_context.raster_spatial_node_index, - main_prim_address, - transform_id, - aa_flags, - quad_flags, - device_pixel_scale, - false, - frame_state, - ); - scratch.quad_segments.push(segment); - } - } - - add_composite_prim( - prim_instance_index, - unclipped_surface_rect.cast_unit(), - premul_color, - quad_flags, - frame_state, - targets, - &scratch.quad_segments, - ); - } - } - return; } } @@ -1304,7 +895,7 @@ fn prepare_interned_prim_for_render( .clipped_local_rect .cast_unit(); - let prim_address_f = write_prim_blocks( + let prim_address_f = quad::write_prim_blocks( &mut frame_state.frame_gpu_data.f32, prim_local_rect, prim_instance.vis.clip_chain.local_clip_rect, @@ -2129,143 +1720,6 @@ fn adjust_mask_scale_for_max_size(device_rect: DeviceIntRect, device_pixel_scale } } -pub fn write_prim_blocks( - builder: &mut GpuBufferBuilderF, - prim_rect: LayoutRect, - clip_rect: LayoutRect, - color: PremultipliedColorF, - segments: &[QuadSegment], -) -> GpuBufferAddress { - let mut writer = builder.write_blocks(3 + segments.len() * 2); - - writer.push_one(prim_rect); - writer.push_one(clip_rect); - writer.push_one(color); - - for segment in segments { - writer.push_one(segment.rect); - match segment.task_id { - RenderTaskId::INVALID => { - writer.push_one([0.0; 4]); - } - task_id => { - writer.push_render_task(task_id); - } - } - } - - writer.finish() -} - -fn add_segment( - x0: f32, - y0: f32, - x1: f32, - y1: f32, - create_task: bool, - prim_instance: &PrimitiveInstance, - prim_spatial_node_index: SpatialNodeIndex, - raster_spatial_node_index: SpatialNodeIndex, - prim_address_f: GpuBufferAddress, - transform_id: TransformPaletteId, - aa_flags: EdgeAaSegmentMask, - quad_flags: QuadFlags, - device_pixel_scale: DevicePixelScale, - needs_scissor_rect: bool, - frame_state: &mut FrameBuildingState, -) -> QuadSegment { - let task_size = DeviceSize::new(x1 - x0, y1 - y0).round().to_i32(); - let content_origin = DevicePoint::new(x0, y0); - - let rect = LayoutRect::new( - LayoutPoint::new(x0, y0), - LayoutPoint::new(x1, y1), - ); - - let task_id = if create_task { - let task_id = frame_state.rg_builder.add().init(RenderTask::new_dynamic( - task_size, - RenderTaskKind::new_prim( - prim_spatial_node_index, - raster_spatial_node_index, - device_pixel_scale, - content_origin, - prim_address_f, - transform_id, - aa_flags, - quad_flags, - prim_instance.vis.clip_chain.clips_range, - needs_scissor_rect, - ), - )); - - let masks = MaskSubPass { - clip_node_range: prim_instance.vis.clip_chain.clips_range, - prim_spatial_node_index, - prim_address_f, - }; - - let task = frame_state.rg_builder.get_task_mut(task_id); - task.add_sub_pass(SubPass::Masks { - masks, - }); - - frame_state.surface_builder.add_child_render_task( - task_id, - frame_state.rg_builder, - ); - - task_id - } else { - RenderTaskId::INVALID - }; - - QuadSegment { - rect, - task_id, - } -} - -fn add_composite_prim( - prim_instance_index: PrimitiveInstanceIndex, - rect: LayoutRect, - color: PremultipliedColorF, - quad_flags: QuadFlags, - frame_state: &mut FrameBuildingState, - targets: &[CommandBufferIndex], - segments: &[QuadSegment], -) { - let composite_prim_address = write_prim_blocks( - &mut frame_state.frame_gpu_data.f32, - rect, - rect, - color, - segments, - ); - - frame_state.set_segments( - segments, - targets, - ); - - let mut composite_quad_flags = QuadFlags::IGNORE_DEVICE_PIXEL_SCALE | QuadFlags::APPLY_DEVICE_CLIP; - if quad_flags.contains(QuadFlags::IS_OPAQUE) { - composite_quad_flags |= QuadFlags::IS_OPAQUE; - } - - frame_state.push_cmd( - &PrimitiveCommand::quad( - prim_instance_index, - composite_prim_address, - TransformPaletteId::IDENTITY, - composite_quad_flags, - // TODO(gw): No AA on composite, unless we use it to apply 2d clips - EdgeAaSegmentMask::empty(), - ), - targets, - ); -} - impl CompositorSurfaceKind { /// Returns true if the compositor surface strategy supports segment rendering fn supports_segments(&self) -> bool { |