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Using TransformStyle::Preserve3D

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This commit is contained in:
Dzmitry Malyshau 2017-05-05 15:23:41 -04:00
parent 0388e11db2
commit d04a64394e
9 changed files with 79 additions and 57 deletions
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29
components/layout/display_list_builder.rs
View file

@ -68,7 +68,8 @@ use style::values::specified::position::{X, Y};
use style_traits::CSSPixel;
use style_traits::cursor::Cursor;
use table_cell::CollapsedBordersForCell;
use webrender_traits::{ColorF, ClipId, GradientStop, RepeatMode, ScrollPolicy};
use webrender_helpers::{ToMixBlendMode, ToTransformStyle};
use webrender_traits::{ColorF, ClipId, GradientStop, RepeatMode, ScrollPolicy, TransformStyle};
trait ResolvePercentage {
fn resolve(&self, length: u32) -> u32;
@ -184,6 +185,9 @@ pub struct DisplayListBuildState<'a> {
/// A stack of clips used to cull display list entries that are outside the
/// rendered region, but only collected at containing block boundaries.
pub containing_block_clip_stack: Vec<Rect<Au>>,
/// The current transform style of the stacking context.
current_transform_style: TransformStyle,
}
impl<'a> DisplayListBuildState<'a> {
@ -201,6 +205,7 @@ impl<'a> DisplayListBuildState<'a> {
iframe_sizes: Vec::new(),
clip_stack: Vec::new(),
containing_block_clip_stack: Vec::new(),
current_transform_style: TransformStyle::Flat,
}
}
@ -212,6 +217,7 @@ impl<'a> DisplayListBuildState<'a> {
fn add_stacking_context(&mut self,
parent_id: StackingContextId,
stacking_context: StackingContext) {
self.current_transform_style = stacking_context.transform_style;
let info = self.stacking_context_info
.entry(parent_id)
.or_insert(StackingContextInfo::new());
@ -1947,8 +1953,9 @@ impl FragmentDisplayListBuilding for Fragment {
&overflow,
self.effective_z_index(),
filters,
self.style().get_effects().mix_blend_mode,
self.style().get_effects().mix_blend_mode.to_mix_blend_mode(),
self.transform_matrix(&border_box),
self.style().get_used_transform_style().to_transform_style(),
self.perspective_matrix(&border_box),
scroll_policy,
parent_scroll_id)
@ -2153,6 +2160,7 @@ pub struct PreservedDisplayListState {
containing_block_scroll_root_id: ClipId,
clips_pushed: usize,
containing_block_clips_pushed: usize,
transform_style: TransformStyle,
}
impl PreservedDisplayListState {
@ -2163,6 +2171,7 @@ impl PreservedDisplayListState {
containing_block_scroll_root_id: state.containing_block_scroll_root_id,
clips_pushed: 0,
containing_block_clips_pushed: 0,
transform_style: state.current_transform_style,
}
}
@ -2183,6 +2192,8 @@ impl PreservedDisplayListState {
let truncate_length = state.containing_block_clip_stack.len() -
self.containing_block_clips_pushed;
state.containing_block_clip_stack.truncate(truncate_length);
state.current_transform_style = self.transform_style;
}
fn push_clip(&mut self,
@ -2614,14 +2625,14 @@ impl InlineFlowDisplayListBuilding for InlineFlow {
fragment.stacking_context_id = fragment.stacking_context_id();
let current_stacking_context_id = state.current_stacking_context_id;
let current_scroll_root_id = state.current_scroll_root_id;
let stacking_context = fragment.create_stacking_context(fragment.stacking_context_id,
&self.base,
ScrollPolicy::Scrollable,
StackingContextCreationMode::Normal,
state.current_scroll_root_id);
state.add_stacking_context(current_stacking_context_id,
fragment.create_stacking_context(
fragment.stacking_context_id,
&self.base,
ScrollPolicy::Scrollable,
StackingContextCreationMode::Normal,
current_scroll_root_id));
stacking_context);
}
_ => fragment.stacking_context_id = state.current_stacking_context_id,
}

12
components/layout/fragment.rs
View file

@ -2470,7 +2470,10 @@ impl Fragment {
if self.style().get_effects().mix_blend_mode != mix_blend_mode::T::normal {
return true
}
if self.style().get_box().transform.0.is_some() {
if self.style().get_box().transform.0.is_some() ||
self.style().get_box().transform_style == transform_style::T::preserve_3d ||
self.style().overrides_transform_style() {
return true
}
@ -2485,13 +2488,6 @@ impl Fragment {
return true
}
match self.style().get_used_transform_style() {
transform_style::T::flat | transform_style::T::preserve_3d => {
return true
}
transform_style::T::auto => {}
}
match (self.style().get_box().position,
self.style().get_position().z_index,
self.style().get_box().overflow_x,

27
components/layout/webrender_helpers.rs
View file

@ -12,7 +12,7 @@ use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
use gfx::display_list::{BorderDetails, BorderRadii, BoxShadowClipMode, ClippingRegion};
use gfx::display_list::{DisplayItem, DisplayList, DisplayListTraversal, StackingContextType};
use msg::constellation_msg::PipelineId;
use style::computed_values::{image_rendering, mix_blend_mode};
use style::computed_values::{image_rendering, mix_blend_mode, transform_style};
use style::computed_values::filter::{self, Filter};
use style::values::computed::BorderStyle;
use webrender_traits::{self, DisplayListBuilder, ExtendMode};
@ -146,12 +146,12 @@ impl ToBorderRadius for BorderRadii<Au> {
}
}
trait ToBlendMode {
fn to_blend_mode(&self) -> webrender_traits::MixBlendMode;
pub trait ToMixBlendMode {
fn to_mix_blend_mode(&self) -> webrender_traits::MixBlendMode;
}
impl ToBlendMode for mix_blend_mode::T {
fn to_blend_mode(&self) -> webrender_traits::MixBlendMode {
impl ToMixBlendMode for mix_blend_mode::T {
fn to_mix_blend_mode(&self) -> webrender_traits::MixBlendMode {
match *self {
mix_blend_mode::T::normal => webrender_traits::MixBlendMode::Normal,
mix_blend_mode::T::multiply => webrender_traits::MixBlendMode::Multiply,
@ -211,6 +211,19 @@ impl ToFilterOps for filter::T {
}
}
pub trait ToTransformStyle {
fn to_transform_style(&self) -> webrender_traits::TransformStyle;
}
impl ToTransformStyle for transform_style::T {
fn to_transform_style(&self) -> webrender_traits::TransformStyle {
match *self {
transform_style::T::auto | transform_style::T::flat => webrender_traits::TransformStyle::Flat,
transform_style::T::preserve_3d => webrender_traits::TransformStyle::Preserve3D,
}
}
}
impl WebRenderDisplayListConverter for DisplayList {
fn convert_to_webrender(&self, pipeline_id: PipelineId) -> DisplayListBuilder {
let traversal = DisplayListTraversal::new(self);
@ -464,9 +477,9 @@ impl WebRenderDisplayItemConverter for DisplayItem {
builder.push_stacking_context(stacking_context.scroll_policy,
stacking_context.bounds.to_rectf(),
transform,
webrender_traits::TransformStyle::Flat,
stacking_context.transform_style,
perspective,
stacking_context.blend_mode.to_blend_mode(),
stacking_context.mix_blend_mode,
stacking_context.filters.to_filter_ops());
}
DisplayItem::PopStackingContext(_) => builder.pop_stacking_context(),