Merge pull request #6077 from penpot/elenatorro-10516-fix-shadow-rendering

🐛 Fix drop shadows viewport clipping
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Alejandro 2025-03-19 08:48:03 +01:00 committed by GitHub
commit b727f2fe1f
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GPG key ID: B5690EEEBB952194
6 changed files with 174 additions and 63 deletions

View file

@ -183,6 +183,9 @@ impl RenderState {
pub fn reset_canvas(&mut self) { pub fn reset_canvas(&mut self) {
self.surfaces.canvas(SurfaceId::Fills).restore_to_count(1); self.surfaces.canvas(SurfaceId::Fills).restore_to_count(1);
self.surfaces
.canvas(SurfaceId::DropShadows)
.restore_to_count(1);
self.surfaces.canvas(SurfaceId::Strokes).restore_to_count(1); self.surfaces.canvas(SurfaceId::Strokes).restore_to_count(1);
self.surfaces.canvas(SurfaceId::Current).restore_to_count(1); self.surfaces.canvas(SurfaceId::Current).restore_to_count(1);
@ -191,6 +194,7 @@ impl RenderState {
SurfaceId::Fills, SurfaceId::Fills,
SurfaceId::Strokes, SurfaceId::Strokes,
SurfaceId::Current, SurfaceId::Current,
SurfaceId::DropShadows,
SurfaceId::Shadow, SurfaceId::Shadow,
SurfaceId::Overlay, SurfaceId::Overlay,
], ],
@ -216,6 +220,16 @@ impl RenderState {
pub fn apply_drawing_to_render_canvas(&mut self, shape: &Shape) { pub fn apply_drawing_to_render_canvas(&mut self, shape: &Shape) {
self.surfaces self.surfaces
.flush_and_submit(&mut self.gpu_state, SurfaceId::Fills); .flush_and_submit(&mut self.gpu_state, SurfaceId::Fills);
self.surfaces
.flush_and_submit(&mut self.gpu_state, SurfaceId::DropShadows);
self.surfaces.draw_into(
SurfaceId::DropShadows,
SurfaceId::Current,
Some(&skia::Paint::default()),
);
self.surfaces.draw_into( self.surfaces.draw_into(
SurfaceId::Fills, SurfaceId::Fills,
SurfaceId::Current, SurfaceId::Current,
@ -259,6 +273,7 @@ impl RenderState {
self.surfaces.apply_mut( self.surfaces.apply_mut(
&[ &[
SurfaceId::Shadow, SurfaceId::Shadow,
SurfaceId::DropShadows,
SurfaceId::Overlay, SurfaceId::Overlay,
SurfaceId::Fills, SurfaceId::Fills,
SurfaceId::Strokes, SurfaceId::Strokes,
@ -281,17 +296,19 @@ impl RenderState {
modifiers: Option<&Matrix>, modifiers: Option<&Matrix>,
clip_bounds: Option<(Rect, Option<Corners>, Matrix)>, clip_bounds: Option<(Rect, Option<Corners>, Matrix)>,
) { ) {
let surface_ids = &[SurfaceId::Fills, SurfaceId::Strokes]; let surface_ids = &[SurfaceId::Fills, SurfaceId::Strokes, SurfaceId::DropShadows];
self.surfaces.apply_mut(surface_ids, |s| { self.surfaces.apply_mut(surface_ids, |s| {
s.canvas().save(); s.canvas().save();
}); });
// set clipping // set clipping
if let Some((bounds, corners, transform)) = clip_bounds { if let Some((bounds, corners, transform)) = clip_bounds {
self.surfaces self.surfaces.apply_mut(
.apply_mut(&[SurfaceId::Fills, SurfaceId::Strokes], |s| { &[SurfaceId::Fills, SurfaceId::Strokes, SurfaceId::DropShadows],
|s| {
s.canvas().concat(&transform); s.canvas().concat(&transform);
}); },
);
if let Some(corners) = corners { if let Some(corners) = corners {
let rrect = RRect::new_rect_radii(bounds, &corners); let rrect = RRect::new_rect_radii(bounds, &corners);
@ -358,10 +375,12 @@ impl RenderState {
text::render(self, text_content); text::render(self, text_content);
} }
_ => { _ => {
self.surfaces self.surfaces.apply_mut(
.apply_mut(&[SurfaceId::Fills, SurfaceId::Strokes], |s| { &[SurfaceId::Fills, SurfaceId::Strokes, SurfaceId::DropShadows],
|s| {
s.canvas().concat(&matrix); s.canvas().concat(&matrix);
}); },
);
for fill in shape.fills().rev() { for fill in shape.fills().rev() {
fills::render(self, &shape, fill); fills::render(self, &shape, fill);
@ -380,21 +399,17 @@ impl RenderState {
); );
} }
for shadow in shape.drop_shadows().rev().filter(|s| !s.hidden()) { shadows::render_drop_shadows(self, &shape);
shadows::render_drop_shadow(
self,
shadow,
self.viewbox.zoom * self.options.dpr(),
);
}
} }
}; };
self.apply_drawing_to_render_canvas(&shape); self.apply_drawing_to_render_canvas(&shape);
self.surfaces self.surfaces.apply_mut(
.apply_mut(&[SurfaceId::Fills, SurfaceId::Strokes], |s| { &[SurfaceId::Fills, SurfaceId::Strokes, SurfaceId::DropShadows],
|s| {
s.canvas().restore(); s.canvas().restore();
}); },
);
} }
pub fn start_render_loop( pub fn start_render_loop(
@ -403,22 +418,23 @@ impl RenderState {
modifiers: &HashMap<Uuid, Matrix>, modifiers: &HashMap<Uuid, Matrix>,
timestamp: i32, timestamp: i32,
) -> Result<(), String> { ) -> Result<(), String> {
let surface_ids = &[SurfaceId::Fills, SurfaceId::Strokes];
if self.render_in_progress { if self.render_in_progress {
if let Some(frame_id) = self.render_request_id { if let Some(frame_id) = self.render_request_id {
self.cancel_animation_frame(frame_id); self.cancel_animation_frame(frame_id);
} }
} }
self.reset_canvas(); self.reset_canvas();
self.surfaces.apply_mut(surface_ids, |s| { self.surfaces.apply_mut(
s.canvas().scale(( &[SurfaceId::Fills, SurfaceId::Strokes, SurfaceId::DropShadows],
self.viewbox.zoom * self.options.dpr(), |s| {
self.viewbox.zoom * self.options.dpr(), s.canvas().scale((
)); self.viewbox.zoom * self.options.dpr(),
s.canvas() self.viewbox.zoom * self.options.dpr(),
.translate((self.viewbox.pan_x, self.viewbox.pan_y)); ));
}); s.canvas()
.translate((self.viewbox.pan_x, self.viewbox.pan_y));
},
);
self.pending_nodes = vec![NodeRenderState { self.pending_nodes = vec![NodeRenderState {
id: Uuid::nil(), id: Uuid::nil(),
@ -510,6 +526,7 @@ impl RenderState {
self.surfaces.canvas(SurfaceId::Target).save(); self.surfaces.canvas(SurfaceId::Target).save();
self.surfaces.canvas(SurfaceId::Fills).save(); self.surfaces.canvas(SurfaceId::Fills).save();
self.surfaces.canvas(SurfaceId::Strokes).save(); self.surfaces.canvas(SurfaceId::Strokes).save();
self.surfaces.canvas(SurfaceId::DropShadows).save();
let navigate_zoom = self.viewbox.zoom / cached.viewbox.zoom; let navigate_zoom = self.viewbox.zoom / cached.viewbox.zoom;
let navigate_x = cached.viewbox.zoom * (self.viewbox.pan_x - cached.viewbox.pan_x); let navigate_x = cached.viewbox.zoom * (self.viewbox.pan_x - cached.viewbox.pan_x);
@ -532,6 +549,7 @@ impl RenderState {
self.surfaces.canvas(SurfaceId::Target).restore(); self.surfaces.canvas(SurfaceId::Target).restore();
self.surfaces.canvas(SurfaceId::Fills).restore(); self.surfaces.canvas(SurfaceId::Fills).restore();
self.surfaces.canvas(SurfaceId::Strokes).restore(); self.surfaces.canvas(SurfaceId::Strokes).restore();
self.surfaces.canvas(SurfaceId::DropShadows).restore();
self.flush(); self.flush();

View file

@ -1,14 +1,14 @@
use skia_safe::{self as skia, RRect}; use skia_safe::{self as skia, Paint, RRect};
use super::{RenderState, SurfaceId}; use super::{RenderState, SurfaceId};
use crate::math::Rect as MathRect; use crate::math::Rect as MathRect;
use crate::shapes::{Fill, Frame, ImageFill, Rect, Shape, Type}; use crate::shapes::{Fill, Frame, ImageFill, Rect, Shape, Type};
fn draw_image_fill_in_container( fn draw_image_fill(
render_state: &mut RenderState, render_state: &mut RenderState,
shape: &Shape, shape: &Shape,
fill: &Fill,
image_fill: &ImageFill, image_fill: &ImageFill,
paint: &Paint,
) { ) {
let image = render_state.images.get(&image_fill.id()); let image = render_state.images.get(&image_fill.id());
if image.is_none() { if image.is_none() {
@ -19,7 +19,6 @@ fn draw_image_fill_in_container(
let canvas = render_state.surfaces.canvas(SurfaceId::Fills); let canvas = render_state.surfaces.canvas(SurfaceId::Fills);
let container = &shape.selrect; let container = &shape.selrect;
let path_transform = shape.to_path_transform(); let path_transform = shape.to_path_transform();
let paint = fill.to_paint(container);
let width = size.0 as f32; let width = size.0 as f32;
let height = size.1 as f32; let height = size.1 as f32;
@ -110,39 +109,29 @@ fn draw_image_fill_in_container(
* This SHOULD be the only public function in this module. * This SHOULD be the only public function in this module.
*/ */
pub fn render(render_state: &mut RenderState, shape: &Shape, fill: &Fill) { pub fn render(render_state: &mut RenderState, shape: &Shape, fill: &Fill) {
let canvas = render_state.surfaces.canvas(SurfaceId::Fills); let paint = &fill.to_paint(&shape.selrect);
let selrect = shape.selrect;
let path_transform = shape.to_path_transform();
match (fill, &shape.shape_type) { match (fill, &shape.shape_type) {
(Fill::Image(image_fill), _) => { (Fill::Image(image_fill), _) => {
draw_image_fill_in_container(render_state, shape, fill, image_fill); draw_image_fill(render_state, shape, image_fill, paint);
} }
(_, Type::Rect(_) | Type::Frame(_)) => { (_, Type::Rect(_) | Type::Frame(_)) => {
if let Some(corners) = shape.shape_type.corners() { render_state
let rrect = RRect::new_rect_radii(selrect, &corners); .surfaces
canvas.draw_rrect(rrect, &fill.to_paint(&selrect)); .draw_rect_to(SurfaceId::Fills, shape, paint);
} else {
canvas.draw_rect(selrect, &fill.to_paint(&selrect));
}
} }
(_, Type::Circle) => { (_, Type::Circle) => {
canvas.draw_oval(selrect, &fill.to_paint(&selrect)); render_state
.surfaces
.draw_circle_to(SurfaceId::Fills, shape, paint);
} }
(_, Type::Path(_)) | (_, Type::Bool(_)) => { (_, Type::Path(_)) | (_, Type::Bool(_)) => {
if let Some(path) = &shape.shape_type.path() { render_state
let svg_attrs = &shape.svg_attrs; .surfaces
let mut skia_path = &mut path.to_skia_path(); .draw_path_to(SurfaceId::Fills, shape, paint);
}
if let Some(path_transform) = path_transform { (_, _) => {
skia_path = skia_path.transform(&path_transform); unreachable!("This shape should not have fills")
if let Some("evenodd") = svg_attrs.get("fill-rule").map(String::as_str) {
skia_path.set_fill_type(skia::PathFillType::EvenOdd);
}
canvas.draw_path(&skia_path, &fill.to_paint(&selrect));
}
}
} }
(_, _) => unreachable!("This shape should not have fills"),
} }
} }

View file

@ -1,17 +1,50 @@
use skia_safe::{self as skia}; use skia_safe::{self as skia};
use super::{RenderState, SurfaceId}; use super::{RenderState, SurfaceId};
use crate::shapes::Shadow; use crate::shapes::{Shadow, Shape, Type};
pub fn render_drop_shadow(render_state: &mut RenderState, shadow: &Shadow, scale: f32) { pub fn render_drop_shadows(render_state: &mut RenderState, shape: &Shape) {
let shadow_paint = shadow.to_paint(scale); if shape.fills().len() > 0 {
render_state for shadow in shape.drop_shadows().rev().filter(|s| !s.hidden()) {
.surfaces render_fill_drop_shadow(render_state, &shape, &shadow);
.draw_into(SurfaceId::Fills, SurfaceId::Shadow, Some(&shadow_paint)); }
} else {
let scale = render_state.viewbox.zoom * render_state.options.dpr();
for shadow in shape.drop_shadows().rev().filter(|s| !s.hidden()) {
render_stroke_drop_shadow(render_state, &shadow, scale);
}
}
}
fn render_fill_drop_shadow(render_state: &mut RenderState, shape: &Shape, shadow: &Shadow) {
let paint = &shadow.get_drop_shadow_paint();
match &shape.shape_type {
Type::Rect(_) | Type::Frame(_) => {
render_state
.surfaces
.draw_rect_to(SurfaceId::DropShadows, shape, paint);
}
Type::Circle => {
render_state
.surfaces
.draw_circle_to(SurfaceId::DropShadows, shape, paint);
}
Type::Path(_) | Type::Bool(_) => {
render_state
.surfaces
.draw_path_to(SurfaceId::DropShadows, shape, paint);
}
_ => {}
}
}
fn render_stroke_drop_shadow(render_state: &mut RenderState, shadow: &Shadow, scale: f32) {
let shadow_paint = &shadow.to_paint(scale);
render_state render_state
.surfaces .surfaces
.draw_into(SurfaceId::Strokes, SurfaceId::Shadow, Some(&shadow_paint)); .draw_into(SurfaceId::Strokes, SurfaceId::Shadow, Some(shadow_paint));
render_state.surfaces.draw_into( render_state.surfaces.draw_into(
SurfaceId::Shadow, SurfaceId::Shadow,

View file

@ -1,5 +1,6 @@
use super::gpu_state::GpuState; use super::gpu_state::GpuState;
use skia_safe as skia; use crate::shapes::Shape;
use skia_safe::{self as skia, Paint, RRect};
#[derive(Debug, PartialEq, Clone, Copy)] #[derive(Debug, PartialEq, Clone, Copy)]
pub enum SurfaceId { pub enum SurfaceId {
@ -8,6 +9,7 @@ pub enum SurfaceId {
Fills, Fills,
Strokes, Strokes,
Shadow, Shadow,
DropShadows,
Overlay, Overlay,
Debug, Debug,
} }
@ -23,6 +25,8 @@ pub struct Surfaces {
shape_strokes: skia::Surface, shape_strokes: skia::Surface,
// used for rendering shadows // used for rendering shadows
shadow: skia::Surface, shadow: skia::Surface,
// used for new shadow rendering
drop_shadows: skia::Surface,
// for drawing the things that are over shadows. // for drawing the things that are over shadows.
overlay: skia::Surface, overlay: skia::Surface,
// for drawing debug info. // for drawing debug info.
@ -40,6 +44,7 @@ impl Surfaces {
let mut target = gpu_state.create_target_surface(width, height); let mut target = gpu_state.create_target_surface(width, height);
let current = target.new_surface_with_dimensions((width, height)).unwrap(); let current = target.new_surface_with_dimensions((width, height)).unwrap();
let shadow = target.new_surface_with_dimensions((width, height)).unwrap(); let shadow = target.new_surface_with_dimensions((width, height)).unwrap();
let drop_shadows = target.new_surface_with_dimensions((width, height)).unwrap();
let overlay = target.new_surface_with_dimensions((width, height)).unwrap(); let overlay = target.new_surface_with_dimensions((width, height)).unwrap();
let shape_fills = target.new_surface_with_dimensions((width, height)).unwrap(); let shape_fills = target.new_surface_with_dimensions((width, height)).unwrap();
let shape_strokes = target.new_surface_with_dimensions((width, height)).unwrap(); let shape_strokes = target.new_surface_with_dimensions((width, height)).unwrap();
@ -49,6 +54,7 @@ impl Surfaces {
target, target,
current, current,
shadow, shadow,
drop_shadows,
overlay, overlay,
shape_fills, shape_fills,
shape_strokes, shape_strokes,
@ -94,6 +100,7 @@ impl Surfaces {
SurfaceId::Target => &mut self.target, SurfaceId::Target => &mut self.target,
SurfaceId::Current => &mut self.current, SurfaceId::Current => &mut self.current,
SurfaceId::Shadow => &mut self.shadow, SurfaceId::Shadow => &mut self.shadow,
SurfaceId::DropShadows => &mut self.drop_shadows,
SurfaceId::Overlay => &mut self.overlay, SurfaceId::Overlay => &mut self.overlay,
SurfaceId::Fills => &mut self.shape_fills, SurfaceId::Fills => &mut self.shape_fills,
SurfaceId::Strokes => &mut self.shape_strokes, SurfaceId::Strokes => &mut self.shape_strokes,
@ -107,7 +114,27 @@ impl Surfaces {
self.current = self.target.new_surface_with_dimensions(dim).unwrap(); self.current = self.target.new_surface_with_dimensions(dim).unwrap();
self.overlay = self.target.new_surface_with_dimensions(dim).unwrap(); self.overlay = self.target.new_surface_with_dimensions(dim).unwrap();
self.shadow = self.target.new_surface_with_dimensions(dim).unwrap(); self.shadow = self.target.new_surface_with_dimensions(dim).unwrap();
self.drop_shadows = self.target.new_surface_with_dimensions(dim).unwrap();
self.shape_fills = self.target.new_surface_with_dimensions(dim).unwrap(); self.shape_fills = self.target.new_surface_with_dimensions(dim).unwrap();
self.debug = self.target.new_surface_with_dimensions(dim).unwrap(); self.debug = self.target.new_surface_with_dimensions(dim).unwrap();
} }
pub fn draw_rect_to(&mut self, id: SurfaceId, shape: &Shape, paint: &Paint) {
if let Some(corners) = shape.shape_type.corners() {
let rrect = RRect::new_rect_radii(shape.selrect, &corners);
self.canvas(id).draw_rrect(rrect, paint);
} else {
self.canvas(id).draw_rect(shape.selrect, paint);
}
}
pub fn draw_circle_to(&mut self, id: SurfaceId, shape: &Shape, paint: &Paint) {
self.canvas(id).draw_oval(shape.selrect, paint);
}
pub fn draw_path_to(&mut self, id: SurfaceId, shape: &Shape, paint: &Paint) {
if let Some(path) = shape.get_skia_path() {
self.canvas(id).draw_path(&path, paint);
}
}
} }

View file

@ -646,6 +646,21 @@ impl Shape {
} }
} }
pub fn get_skia_path(&self) -> Option<skia::Path> {
if let Some(path) = self.shape_type.path() {
let mut skia_path = path.to_skia_path();
if let Some(path_transform) = self.to_path_transform() {
skia_path.transform(&path_transform);
}
if let Some("evenodd") = self.svg_attrs.get("fill-rule").map(String::as_str) {
skia_path.set_fill_type(skia::PathFillType::EvenOdd);
}
Some(skia_path)
} else {
None
}
}
fn transform_selrect(&mut self, transform: &Matrix) { fn transform_selrect(&mut self, transform: &Matrix) {
let mut center = self.selrect.center(); let mut center = self.selrect.center();
center = transform.map_point(center); center = transform.map_point(center);

View file

@ -123,4 +123,33 @@ impl Shadow {
filter filter
} }
// New methods for DropShadow
pub fn get_drop_shadow_paint(&self) -> skia::Paint {
let mut paint = skia::Paint::default();
let image_filter = self.get_drop_shadow_filter();
paint.set_image_filter(image_filter);
paint.set_anti_alias(true);
paint
}
fn get_drop_shadow_filter(&self) -> Option<ImageFilter> {
let mut filter = image_filters::drop_shadow_only(
(self.offset.0, self.offset.1),
(self.blur, self.blur),
self.color,
None,
None,
None,
);
if self.spread > 0. {
filter = image_filters::dilate((self.spread, self.spread), filter, None);
}
filter
}
} }