Backed out changeset d4b3fe2e03c6 (bug 1898621) for wrench failures. CLOSED TREE

This commit is contained in:
Cristina Horotan 2024-06-06 02:47:35 +03:00
parent cf6f135372
commit a1aa176cc4
4 changed files with 169 additions and 232 deletions

1
Cargo.lock generated
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@ -6600,7 +6600,6 @@ dependencies = [
"ron", "ron",
"serde", "serde",
"smallvec", "smallvec",
"static_prefs",
"svg_fmt", "svg_fmt",
"swgl", "swgl",
"time 0.1.45", "time 0.1.45",

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@ -57,7 +57,6 @@ firefox-on-glean = { version = "0.1.0", optional = true }
swgl = { path = "../swgl", optional = true } swgl = { path = "../swgl", optional = true }
topological-sort = "0.1" topological-sort = "0.1"
peek-poke = { version = "0.3", path = "../peek-poke" } peek-poke = { version = "0.3", path = "../peek-poke" }
static_prefs = { path = "../../../modules/libpref/init/static_prefs" }
[dev-dependencies] [dev-dependencies]
mozangle = "0.3.3" mozangle = "0.3.3"

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@ -134,7 +134,6 @@ use crate::spatial_tree::CoordinateSystemId;
use crate::surface::{SurfaceDescriptor, SurfaceTileDescriptor}; use crate::surface::{SurfaceDescriptor, SurfaceTileDescriptor};
use smallvec::SmallVec; use smallvec::SmallVec;
use std::{mem, u8, marker, u32}; use std::{mem, u8, marker, u32};
use std::fmt::{Display, Error, Formatter};
use std::sync::atomic::{AtomicUsize, Ordering}; use std::sync::atomic::{AtomicUsize, Ordering};
use std::collections::hash_map::Entry; use std::collections::hash_map::Entry;
use std::ops::Range; use std::ops::Range;
@ -1864,54 +1863,9 @@ pub struct TileCacheInstance {
pub yuv_images_remaining: usize, pub yuv_images_remaining: usize,
} }
#[derive(Clone, Copy)] enum SurfacePromotionResult {
enum SurfacePromotionFailure { Failed,
ImageWaitingOnYuvImage, Success,
NotPremultipliedAlpha,
OverlaySurfaceLimit,
OverlayNeedsMask,
UnderlayAlphaBackdrop,
UnderlaySurfaceLimit,
UnderlayIntersectsOverlay,
NotRootTileCache,
ComplexTransform,
SliceAtomic,
SizeTooLarge,
}
impl Display for SurfacePromotionFailure {
fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
write!(
f,
"{}",
match *self {
SurfacePromotionFailure::ImageWaitingOnYuvImage => "Image prim waiting for all YuvImage prims to be considered for promotion",
SurfacePromotionFailure::NotPremultipliedAlpha => "does not use premultiplied alpha",
SurfacePromotionFailure::OverlaySurfaceLimit => "hit the overlay surface limit",
SurfacePromotionFailure::OverlayNeedsMask => "overlay not allowed for prim with mask",
SurfacePromotionFailure::UnderlayAlphaBackdrop => "underlay requires an opaque backdrop",
SurfacePromotionFailure::UnderlaySurfaceLimit => "hit the underlay surface limit",
SurfacePromotionFailure::UnderlayIntersectsOverlay => "underlay intersects already-promoted overlay",
SurfacePromotionFailure::NotRootTileCache => "is not on a root tile cache",
SurfacePromotionFailure::ComplexTransform => "has a complex transform",
SurfacePromotionFailure::SliceAtomic => "slice is atomic",
SurfacePromotionFailure::SizeTooLarge => "surface is too large for compositor",
}.to_owned()
)
}
}
fn maybe_report_promotion_failure(result: Result<CompositorSurfaceKind, SurfacePromotionFailure>,
rect: PictureRect,
reported: &mut bool) {
if !static_prefs::pref!("gfx.webrender.compositor.surface-promotion.logging") || result.is_ok() || *reported {
return;
}
// Report this as a warning.
// TODO: Find a way to expose this to web authors.
warn!("Surface promotion of prim at {:?} failed with: {}.", rect, result.unwrap_err());
*reported = true;
} }
impl TileCacheInstance { impl TileCacheInstance {
@ -2519,6 +2473,7 @@ impl TileCacheInstance {
fn can_promote_to_surface( fn can_promote_to_surface(
&mut self, &mut self,
flags: PrimitiveFlags,
prim_clip_chain: &ClipChainInstance, prim_clip_chain: &ClipChainInstance,
prim_spatial_node_index: SpatialNodeIndex, prim_spatial_node_index: SpatialNodeIndex,
is_root_tile_cache: bool, is_root_tile_cache: bool,
@ -2526,8 +2481,11 @@ impl TileCacheInstance {
surface_kind: CompositorSurfaceKind, surface_kind: CompositorSurfaceKind,
pic_coverage_rect: PictureRect, pic_coverage_rect: PictureRect,
frame_context: &FrameVisibilityContext, frame_context: &FrameVisibilityContext,
) -> Result<CompositorSurfaceKind, SurfacePromotionFailure> { ) -> SurfacePromotionResult {
use crate::picture::SurfacePromotionFailure::*; // Check if this primitive _wants_ to be promoted to a compositor surface.
if !flags.contains(PrimitiveFlags::PREFER_COMPOSITOR_SURFACE) {
return SurfacePromotionResult::Failed;
}
// Each strategy has different restrictions on whether we can promote // Each strategy has different restrictions on whether we can promote
match surface_kind { match surface_kind {
@ -2536,33 +2494,26 @@ impl TileCacheInstance {
// Non-opaque compositor surfaces require sub-slices, as they are drawn // Non-opaque compositor surfaces require sub-slices, as they are drawn
// as overlays. // as overlays.
if sub_slice_index == self.sub_slices.len() - 1 { if sub_slice_index == self.sub_slices.len() - 1 {
return Err(OverlaySurfaceLimit); return SurfacePromotionResult::Failed;
} }
// If a complex clip is being applied to this primitive, it can't be // If a complex clip is being applied to this primitive, it can't be
// promoted directly to a compositor surface. // promoted directly to a compositor surface.
if prim_clip_chain.needs_mask { if prim_clip_chain.needs_mask {
return Err(OverlayNeedsMask); return SurfacePromotionResult::Failed;
} }
} }
CompositorSurfaceKind::Underlay => { CompositorSurfaceKind::Underlay => {
// If a mask is needed, there are some restrictions. // Underlay strategy relies on the slice being opaque if a mask is needed,
if prim_clip_chain.needs_mask { // and only one underlay can rely on a mask.
// Need an opaque backdrop. if prim_clip_chain.needs_mask && (self.backdrop.kind.is_none() || !self.underlays.is_empty()) {
if self.backdrop.kind.is_none() { return SurfacePromotionResult::Failed;
return Err(UnderlayAlphaBackdrop);
}
// Only one masked underlay allowed.
if !self.underlays.is_empty() {
return Err(UnderlaySurfaceLimit);
}
} }
// Underlays can't appear on top of overlays, because they can't punch // Underlays can't appear on top of overlays, because they can't punch
// through the existing overlay. // through the existing overlay.
if self.overlay_region.intersects(&pic_coverage_rect) { if self.overlay_region.intersects(&pic_coverage_rect) {
return Err(UnderlayIntersectsOverlay); return SurfacePromotionResult::Failed;
} }
} }
CompositorSurfaceKind::Blit => unreachable!(), CompositorSurfaceKind::Blit => unreachable!(),
@ -2571,7 +2522,7 @@ impl TileCacheInstance {
// If not on the root picture cache, it has some kind of // If not on the root picture cache, it has some kind of
// complex effect (such as a filter, mix-blend-mode or 3d transform). // complex effect (such as a filter, mix-blend-mode or 3d transform).
if !is_root_tile_cache { if !is_root_tile_cache {
return Err(NotRootTileCache); return SurfacePromotionResult::Failed;
} }
let mapper : SpaceMapper<PicturePixel, WorldPixel> = SpaceMapper::new_with_target( let mapper : SpaceMapper<PicturePixel, WorldPixel> = SpaceMapper::new_with_target(
@ -2581,14 +2532,14 @@ impl TileCacheInstance {
&frame_context.spatial_tree); &frame_context.spatial_tree);
let transform = mapper.get_transform(); let transform = mapper.get_transform();
if !transform.is_2d_scale_translation() { if !transform.is_2d_scale_translation() {
return Err(ComplexTransform); return SurfacePromotionResult::Failed;
} }
if self.slice_flags.contains(SliceFlags::IS_ATOMIC) { if self.slice_flags.contains(SliceFlags::IS_ATOMIC) {
return Err(SliceAtomic); return SurfacePromotionResult::Failed;
} }
Ok(surface_kind) SurfacePromotionResult::Success
} }
fn setup_compositor_surfaces_yuv( fn setup_compositor_surfaces_yuv(
@ -2610,7 +2561,7 @@ impl TileCacheInstance {
color_space: YuvRangedColorSpace, color_space: YuvRangedColorSpace,
format: YuvFormat, format: YuvFormat,
surface_kind: CompositorSurfaceKind, surface_kind: CompositorSurfaceKind,
) -> Result<CompositorSurfaceKind, SurfacePromotionFailure> { ) -> bool {
for &key in api_keys { for &key in api_keys {
if key != ImageKey::DUMMY { if key != ImageKey::DUMMY {
// TODO: See comment in setup_compositor_surfaces_rgb. // TODO: See comment in setup_compositor_surfaces_rgb.
@ -2664,7 +2615,7 @@ impl TileCacheInstance {
image_rendering: ImageRendering, image_rendering: ImageRendering,
is_opaque: bool, is_opaque: bool,
surface_kind: CompositorSurfaceKind, surface_kind: CompositorSurfaceKind,
) -> Result<CompositorSurfaceKind, SurfacePromotionFailure> { ) -> bool {
let mut api_keys = [ImageKey::DUMMY; 3]; let mut api_keys = [ImageKey::DUMMY; 3];
api_keys[0] = api_key; api_keys[0] = api_key;
@ -2720,9 +2671,7 @@ impl TileCacheInstance {
image_rendering: ImageRendering, image_rendering: ImageRendering,
is_opaque: bool, is_opaque: bool,
surface_kind: CompositorSurfaceKind, surface_kind: CompositorSurfaceKind,
) -> Result<CompositorSurfaceKind, SurfacePromotionFailure> { ) -> bool {
use crate::picture::SurfacePromotionFailure::*;
let map_local_to_picture = SpaceMapper::new_with_target( let map_local_to_picture = SpaceMapper::new_with_target(
self.spatial_node_index, self.spatial_node_index,
prim_spatial_node_index, prim_spatial_node_index,
@ -2733,12 +2682,12 @@ impl TileCacheInstance {
// Map the primitive local rect into picture space. // Map the primitive local rect into picture space.
let prim_rect = match map_local_to_picture.map(&local_prim_rect) { let prim_rect = match map_local_to_picture.map(&local_prim_rect) {
Some(rect) => rect, Some(rect) => rect,
None => return Ok(surface_kind), None => return true,
}; };
// If the rect is invalid, no need to create dependencies. // If the rect is invalid, no need to create dependencies.
if prim_rect.is_empty() { if prim_rect.is_empty() {
return Ok(surface_kind); return true;
} }
let pic_to_world_mapper = SpaceMapper::new_with_target( let pic_to_world_mapper = SpaceMapper::new_with_target(
@ -2754,7 +2703,7 @@ impl TileCacheInstance {
let is_visible = world_clip_rect.intersects(&frame_context.global_screen_world_rect); let is_visible = world_clip_rect.intersects(&frame_context.global_screen_world_rect);
if !is_visible { if !is_visible {
return Ok(surface_kind); return true;
} }
let prim_offset = ScaleOffset::from_offset(local_prim_rect.min.to_vector().cast_unit()); let prim_offset = ScaleOffset::from_offset(local_prim_rect.min.to_vector().cast_unit());
@ -2806,7 +2755,7 @@ impl TileCacheInstance {
if surface_size.width >= MAX_COMPOSITOR_SURFACES_SIZE || if surface_size.width >= MAX_COMPOSITOR_SURFACES_SIZE ||
surface_size.height >= MAX_COMPOSITOR_SURFACES_SIZE { surface_size.height >= MAX_COMPOSITOR_SURFACES_SIZE {
return Err(SizeTooLarge); return false;
} }
// When using native compositing, we need to find an existing native surface // When using native compositing, we need to find an existing native surface
@ -2944,7 +2893,7 @@ impl TileCacheInstance {
CompositorSurfaceKind::Blit => unreachable!(), CompositorSurfaceKind::Blit => unreachable!(),
} }
Ok(surface_kind) true
} }
/// Push an estimated rect for an off-screen surface during dependency updates. This is /// Push an estimated rect for an off-screen surface during dependency updates. This is
@ -3015,8 +2964,6 @@ impl TileCacheInstance {
is_root_tile_cache: bool, is_root_tile_cache: bool,
surfaces: &mut [SurfaceInfo], surfaces: &mut [SurfaceInfo],
) { ) {
use crate::picture::SurfacePromotionFailure::*;
// This primitive exists on the last element on the current surface stack. // This primitive exists on the last element on the current surface stack.
profile_scope!("update_prim_dependencies"); profile_scope!("update_prim_dependencies");
let prim_surface_index = surface_stack.last().unwrap().1; let prim_surface_index = surface_stack.last().unwrap().1;
@ -3156,8 +3103,6 @@ impl TileCacheInstance {
// rect eventually means it doesn't affect that tile). // rect eventually means it doesn't affect that tile).
// TODO(gw): Get picture clips earlier (during the initial picture traversal // TODO(gw): Get picture clips earlier (during the initial picture traversal
// pass) so that we can calculate these correctly. // pass) so that we can calculate these correctly.
let mut promotion_result: Result<CompositorSurfaceKind, SurfacePromotionFailure> = Ok(CompositorSurfaceKind::Blit);
let mut promotion_failure_reported = false;
match prim_instance.kind { match prim_instance.kind {
PrimitiveInstanceKind::Picture { pic_index,.. } => { PrimitiveInstanceKind::Picture { pic_index,.. } => {
// Pictures can depend on animated opacity bindings. // Pictures can depend on animated opacity bindings.
@ -3220,61 +3165,63 @@ impl TileCacheInstance {
is_opaque = image_properties.descriptor.is_opaque(); is_opaque = image_properties.descriptor.is_opaque();
} }
if image_key.common.flags.contains(PrimitiveFlags::PREFER_COMPOSITOR_SURFACE) { let mut promote_to_surface = false;
// Only consider promoting Images if all of our YuvImages have been
// processed (whether they were promoted or not). // Only consider promoting Images if all of our YuvImages have been
if self.yuv_images_remaining > 0 { // processed (whether they were promoted or not).
promotion_result = Err(ImageWaitingOnYuvImage); if self.yuv_images_remaining == 0 {
} else { match self.can_promote_to_surface(image_key.common.flags,
promotion_result = self.can_promote_to_surface(prim_clip_chain, prim_clip_chain,
prim_spatial_node_index, prim_spatial_node_index,
is_root_tile_cache, is_root_tile_cache,
sub_slice_index, sub_slice_index,
CompositorSurfaceKind::Overlay, CompositorSurfaceKind::Overlay,
pic_coverage_rect, pic_coverage_rect,
frame_context); frame_context) {
} SurfacePromotionResult::Failed => {
}
// Native OS compositors (DC and CA, at least) support premultiplied alpha SurfacePromotionResult::Success => {
// only. If we have an image that's not pre-multiplied alpha, we can't promote it. promote_to_surface = true;
if image_data.alpha_type == AlphaType::Alpha { }
promotion_result = Err(NotPremultipliedAlpha);
}
if let Ok(kind) = promotion_result {
promotion_result = self.setup_compositor_surfaces_rgb(
sub_slice_index,
&mut prim_info,
image_key.common.flags,
local_prim_rect,
prim_spatial_node_index,
pic_coverage_rect,
frame_context,
ImageDependency {
key: image_data.key,
generation: resource_cache.get_image_generation(image_data.key),
},
image_data.key,
resource_cache,
composite_state,
gpu_cache,
image_data.image_rendering,
is_opaque,
kind,
);
} }
} }
if let Ok(kind) = promotion_result { // Native OS compositors (DC and CA, at least) support premultiplied alpha
*compositor_surface_kind = kind; // only. If we have an image that's not pre-multiplied alpha, we can't promote it.
if image_data.alpha_type == AlphaType::Alpha {
if kind == CompositorSurfaceKind::Overlay { promote_to_surface = false;
prim_instance.vis.state = VisibilityState::Culled; }
return;
} if promote_to_surface {
promote_to_surface = self.setup_compositor_surfaces_rgb(
assert!(kind == CompositorSurfaceKind::Blit, "Image prims should either be overlays or blits."); sub_slice_index,
&mut prim_info,
image_key.common.flags,
local_prim_rect,
prim_spatial_node_index,
pic_coverage_rect,
frame_context,
ImageDependency {
key: image_data.key,
generation: resource_cache.get_image_generation(image_data.key),
},
image_data.key,
resource_cache,
composite_state,
gpu_cache,
image_data.image_rendering,
is_opaque,
CompositorSurfaceKind::Overlay,
);
}
if promote_to_surface {
*compositor_surface_kind = CompositorSurfaceKind::Overlay;
prim_instance.vis.state = VisibilityState::Culled;
return;
} else {
*compositor_surface_kind = CompositorSurfaceKind::Blit;
prim_info.images.push(ImageDependency { prim_info.images.push(ImageDependency {
key: image_data.key, key: image_data.key,
generation: resource_cache.get_image_generation(image_data.key), generation: resource_cache.get_image_generation(image_data.key),
@ -3284,103 +3231,106 @@ impl TileCacheInstance {
PrimitiveInstanceKind::YuvImage { data_handle, ref mut compositor_surface_kind, .. } => { PrimitiveInstanceKind::YuvImage { data_handle, ref mut compositor_surface_kind, .. } => {
let prim_data = &data_stores.yuv_image[data_handle]; let prim_data = &data_stores.yuv_image[data_handle];
if prim_data.common.flags.contains(PrimitiveFlags::PREFER_COMPOSITOR_SURFACE) { // Note if this is one of the YuvImages we were considering for
// Note if this is one of the YuvImages we were considering for // surface promotion. We only care for primitives that were added
// surface promotion. We only care for primitives that were added // to us, indicated by is_root_tile_cache. Those are the only ones
// to us, indicated by is_root_tile_cache. Those are the only ones // that were added to the TileCacheParams that configured the
// that were added to the TileCacheParams that configured the // current scene.
// current scene. if is_root_tile_cache && prim_data.common.flags.contains(PrimitiveFlags::PREFER_COMPOSITOR_SURFACE) {
if is_root_tile_cache { self.yuv_images_remaining -= 1;
self.yuv_images_remaining -= 1; }
}
let clip_on_top = prim_clip_chain.needs_mask;
let clip_on_top = prim_clip_chain.needs_mask; let prefer_underlay = clip_on_top || !cfg!(target_os = "macos");
let prefer_underlay = clip_on_top || !cfg!(target_os = "macos"); let promotion_attempts = if prefer_underlay {
let promotion_attempts = if prefer_underlay { [CompositorSurfaceKind::Underlay, CompositorSurfaceKind::Overlay]
[CompositorSurfaceKind::Underlay, CompositorSurfaceKind::Overlay] } else {
} else { [CompositorSurfaceKind::Overlay, CompositorSurfaceKind::Underlay]
[CompositorSurfaceKind::Overlay, CompositorSurfaceKind::Underlay] };
let mut promotion_kind = None;
for kind in promotion_attempts {
let success = match self.can_promote_to_surface(
prim_data.common.flags,
prim_clip_chain,
prim_spatial_node_index,
is_root_tile_cache,
sub_slice_index,
kind,
pic_coverage_rect,
frame_context) {
SurfacePromotionResult::Failed => false,
SurfacePromotionResult::Success => true,
}; };
if success {
for kind in promotion_attempts { promotion_kind = Some(kind);
// Since this might be an attempt after an earlier error, clear the flag break;
// so that we are allowed to report another error.
promotion_failure_reported = false;
promotion_result = self.can_promote_to_surface(
prim_clip_chain,
prim_spatial_node_index,
is_root_tile_cache,
sub_slice_index,
kind,
pic_coverage_rect,
frame_context);
if promotion_result.is_ok() {
break;
}
maybe_report_promotion_failure(promotion_result, pic_coverage_rect, &mut promotion_failure_reported);
} }
}
// TODO(gw): When we support RGBA images for external surfaces, we also
// need to check if opaque (YUV images are implicitly opaque). // TODO(gw): When we support RGBA images for external surfaces, we also
// need to check if opaque (YUV images are implicitly opaque).
// If this primitive is being promoted to a surface, construct an external
// surface descriptor for use later during batching and compositing. We only // If this primitive is being promoted to a surface, construct an external
// add the image keys for this primitive as a dependency if this is _not_ // surface descriptor for use later during batching and compositing. We only
// a promoted surface, since we don't want the tiles to invalidate when the // add the image keys for this primitive as a dependency if this is _not_
// video content changes, if it's a compositor surface! // a promoted surface, since we don't want the tiles to invalidate when the
if let Ok(kind) = promotion_result { // video content changes, if it's a compositor surface!
// Build dependency for each YUV plane, with current image generation for if let Some(kind) = promotion_kind {
// later detection of when the composited surface has changed. // Build dependency for each YUV plane, with current image generation for
let mut image_dependencies = [ImageDependency::INVALID; 3]; // later detection of when the composited surface has changed.
for (key, dep) in prim_data.kind.yuv_key.iter().cloned().zip(image_dependencies.iter_mut()) { let mut image_dependencies = [ImageDependency::INVALID; 3];
*dep = ImageDependency { for (key, dep) in prim_data.kind.yuv_key.iter().cloned().zip(image_dependencies.iter_mut()) {
key, *dep = ImageDependency {
generation: resource_cache.get_image_generation(key), key,
} generation: resource_cache.get_image_generation(key),
} }
}
promotion_result = self.setup_compositor_surfaces_yuv(
sub_slice_index, let success = self.setup_compositor_surfaces_yuv(
&mut prim_info, sub_slice_index,
prim_data.common.flags, &mut prim_info,
local_prim_rect, prim_data.common.flags,
prim_spatial_node_index, local_prim_rect,
pic_coverage_rect, prim_spatial_node_index,
frame_context, pic_coverage_rect,
&image_dependencies, frame_context,
&prim_data.kind.yuv_key, &image_dependencies,
resource_cache, &prim_data.kind.yuv_key,
composite_state, resource_cache,
gpu_cache, composite_state,
prim_data.kind.image_rendering, gpu_cache,
prim_data.kind.color_depth, prim_data.kind.image_rendering,
prim_data.kind.color_space.with_range(prim_data.kind.color_range), prim_data.kind.color_depth,
prim_data.kind.format, prim_data.kind.color_space.with_range(prim_data.kind.color_range),
kind, prim_data.kind.format,
); kind,
);
if !success {
promotion_kind = None;
} }
} }
// Store on the YUV primitive instance whether this is a promoted surface. // Store on the YUV primitive instance whether this is a promoted surface.
// This is used by the batching code to determine whether to draw the // This is used by the batching code to determine whether to draw the
// image to the content tiles, or just a transparent z-write. // image to the content tiles, or just a transparent z-write.
if let Ok(kind) = promotion_result { if let Some(kind) = promotion_kind {
*compositor_surface_kind = kind; *compositor_surface_kind = kind;
if kind == CompositorSurfaceKind::Overlay { if kind == CompositorSurfaceKind::Overlay {
prim_instance.vis.state = VisibilityState::Culled; prim_instance.vis.state = VisibilityState::Culled;
return; return;
} }
if kind == CompositorSurfaceKind::Blit { } else {
prim_info.images.extend( *compositor_surface_kind = CompositorSurfaceKind::Blit;
prim_data.kind.yuv_key.iter().map(|key| {
ImageDependency { prim_info.images.extend(
key: *key, prim_data.kind.yuv_key.iter().map(|key| {
generation: resource_cache.get_image_generation(*key), ImageDependency {
} key: *key,
}) generation: resource_cache.get_image_generation(*key),
); }
} })
);
} }
} }
PrimitiveInstanceKind::ImageBorder { data_handle, .. } => { PrimitiveInstanceKind::ImageBorder { data_handle, .. } => {
@ -3481,9 +3431,7 @@ impl TileCacheInstance {
PrimitiveInstanceKind::TextRun { .. } => { PrimitiveInstanceKind::TextRun { .. } => {
// These don't contribute dependencies // These don't contribute dependencies
} }
}; };
maybe_report_promotion_failure(promotion_result, pic_coverage_rect, &mut promotion_failure_reported);
// Calculate the screen rect in local space. When we calculate backdrops, we // Calculate the screen rect in local space. When we calculate backdrops, we
// care only that they cover the visible rect (based off the local clip), and // care only that they cover the visible rect (based off the local clip), and

View file

@ -6599,15 +6599,6 @@
value: 25 value: 25
mirror: once mirror: once
# When true, we output warning messages when rejecting surface promotion
# when it has been requested. This is important for color correctness of
# wide color videos, as well as for GPU performance for all videos.
- name: gfx.webrender.compositor.surface-promotion.logging
type: RelaxedAtomicBool
value: false
mirror: always
rust: true
# Number of damage rects we can give to the compositor for a new frame with # Number of damage rects we can give to the compositor for a new frame with
# partial present. This controls whether partial present is used or not. # partial present. This controls whether partial present is used or not.
- name: gfx.webrender.max-partial-present-rects - name: gfx.webrender.max-partial-present-rects