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Layerize canvas

Browse source 
Note that this keeps using readback right now, `NativeSurface` painting
will be implemented soon.

Also see https://github.com/servo/servo/issues/6142
This commit is contained in:
ecoal95 2015-05-20 10:29:08 +02:00
parent 6481058309
commit 3350522306
35 changed files with 769 additions and 500 deletions
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353
components/canvas/canvas_paint_task.rs
View file

@ -5,19 +5,18 @@
use azure::azure::AzFloat;
use azure::azure_hl::{DrawTarget, SurfaceFormat, BackendType, StrokeOptions, DrawOptions, Pattern};
use azure::azure_hl::{ColorPattern, PathBuilder, DrawSurfaceOptions, Filter};
use azure::azure_hl::{GradientStop, LinearGradientPattern, RadialGradientPattern, ExtendMode};
use azure::azure_hl::{JoinStyle, CapStyle, CompositionOp};
use canvas_msg::{CanvasMsg, Canvas2dMsg, CanvasCommonMsg};
use azure::azure_hl::{JoinStyle, CapStyle};
use canvas_traits::*;
use geom::matrix2d::Matrix2D;
use geom::point::Point2D;
use geom::rect::Rect;
use geom::size::Size2D;
use gfx::color;
use layers::platform::surface::NativeSurface;
use gfx_traits::color;
use num::ToPrimitive;
use util::task::spawn_named;
use util::vec::byte_swap;
use cssparser::RGBA;
use std::borrow::ToOwned;
use std::mem;
use std::sync::mpsc::{channel, Sender};
@ -257,6 +256,8 @@ impl<'a> CanvasPaintTask<'a> {
CanvasCommonMsg::Recreate(size) => painter.recreate(size),
CanvasCommonMsg::SendPixelContents(chan) =>
painter.send_pixel_contents(chan),
CanvasCommonMsg::SendNativeSurface(chan) =>
painter.send_native_surface(chan),
}
},
CanvasMsg::WebGL(_) => panic!("Wrong message sent to Canvas2D task"),
@ -497,6 +498,14 @@ impl<'a> CanvasPaintTask<'a> {
})
}
fn send_native_surface(&self, chan: Sender<NativeSurface>) {
let mut native_surface: NativeSurface =
NativeSurface::from_draw_target_backing(self.drawtarget.backing.clone());
native_surface.mark_wont_leak();
chan.send(native_surface).unwrap();
}
fn get_image_data(&self, mut dest_rect: Rect<f64>, canvas_size: Size2D<f64>, chan: Sender<Vec<u8>>) {
if dest_rect.size.width < 0.0 {
dest_rect.size.width = -dest_rect.size.width;
@ -566,340 +575,6 @@ impl<'a> CanvasPaintTask<'a> {
}
}
#[derive(Clone)]
pub struct CanvasGradientStop {
pub offset: f64,
pub color: RGBA,
}
#[derive(Clone)]
pub struct LinearGradientStyle {
pub x0: f64,
pub y0: f64,
pub x1: f64,
pub y1: f64,
pub stops: Vec<CanvasGradientStop>
}
impl LinearGradientStyle {
pub fn new(x0: f64, y0: f64, x1: f64, y1: f64, stops: Vec<CanvasGradientStop>)
-> LinearGradientStyle {
LinearGradientStyle {
x0: x0,
y0: y0,
x1: x1,
y1: y1,
stops: stops,
}
}
}
#[derive(Clone)]
pub struct RadialGradientStyle {
pub x0: f64,
pub y0: f64,
pub r0: f64,
pub x1: f64,
pub y1: f64,
pub r1: f64,
pub stops: Vec<CanvasGradientStop>
}
impl RadialGradientStyle {
pub fn new(x0: f64, y0: f64, r0: f64, x1: f64, y1: f64, r1: f64, stops: Vec<CanvasGradientStop>)
-> RadialGradientStyle {
RadialGradientStyle {
x0: x0,
y0: y0,
r0: r0,
x1: x1,
y1: y1,
r1: r1,
stops: stops,
}
}
}
#[derive(Clone)]
pub enum FillOrStrokeStyle {
Color(RGBA),
LinearGradient(LinearGradientStyle),
RadialGradient(RadialGradientStyle),
}
impl FillOrStrokeStyle {
fn to_azure_pattern(&self, drawtarget: &DrawTarget) -> Pattern {
match *self {
FillOrStrokeStyle::Color(ref color) => {
Pattern::Color(ColorPattern::new(color::new(color.red,
color.green,
color.blue,
color.alpha)))
},
FillOrStrokeStyle::LinearGradient(ref linear_gradient_style) => {
let gradient_stops: Vec<GradientStop> = linear_gradient_style.stops.iter().map(|s| {
GradientStop {
offset: s.offset as AzFloat,
color: color::new(s.color.red, s.color.green, s.color.blue, s.color.alpha)
}
}).collect();
Pattern::LinearGradient(LinearGradientPattern::new(
&Point2D(linear_gradient_style.x0 as AzFloat, linear_gradient_style.y0 as AzFloat),
&Point2D(linear_gradient_style.x1 as AzFloat, linear_gradient_style.y1 as AzFloat),
drawtarget.create_gradient_stops(&gradient_stops, ExtendMode::Clamp),
&Matrix2D::identity()))
},
FillOrStrokeStyle::RadialGradient(ref radial_gradient_style) => {
let gradient_stops: Vec<GradientStop> = radial_gradient_style.stops.iter().map(|s| {
GradientStop {
offset: s.offset as AzFloat,
color: color::new(s.color.red, s.color.green, s.color.blue, s.color.alpha)
}
}).collect();
Pattern::RadialGradient(RadialGradientPattern::new(
&Point2D(radial_gradient_style.x0 as AzFloat, radial_gradient_style.y0 as AzFloat),
&Point2D(radial_gradient_style.x1 as AzFloat, radial_gradient_style.y1 as AzFloat),
radial_gradient_style.r0 as AzFloat, radial_gradient_style.r1 as AzFloat,
drawtarget.create_gradient_stops(&gradient_stops, ExtendMode::Clamp),
&Matrix2D::identity()))
}
}
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum LineCapStyle {
Butt = 0,
Round = 1,
Square = 2,
}
impl LineCapStyle {
fn to_azure_style(&self) -> CapStyle {
match *self {
LineCapStyle::Butt => CapStyle::Butt,
LineCapStyle::Round => CapStyle::Round,
LineCapStyle::Square => CapStyle::Square,
}
}
pub fn from_str(string: &str) -> Option<LineCapStyle> {
match string {
"butt" => Some(LineCapStyle::Butt),
"round" => Some(LineCapStyle::Round),
"square" => Some(LineCapStyle::Square),
_ => None
}
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum LineJoinStyle {
Round = 0,
Bevel = 1,
Miter = 2,
}
impl LineJoinStyle {
fn to_azure_style(&self) -> JoinStyle {
match *self {
LineJoinStyle::Round => JoinStyle::Round,
LineJoinStyle::Bevel => JoinStyle::Bevel,
LineJoinStyle::Miter => JoinStyle::Miter,
}
}
pub fn from_str(string: &str) -> Option<LineJoinStyle> {
match string {
"round" => Some(LineJoinStyle::Round),
"bevel" => Some(LineJoinStyle::Bevel),
"miter" => Some(LineJoinStyle::Miter),
_ => None
}
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum CompositionStyle {
SrcIn,
SrcOut,
SrcOver,
SrcAtop,
DestIn,
DestOut,
DestOver,
DestAtop,
Copy,
Lighter,
Xor,
}
impl CompositionStyle {
fn to_azure_style(&self) -> CompositionOp {
match *self {
CompositionStyle::SrcIn => CompositionOp::In,
CompositionStyle::SrcOut => CompositionOp::Out,
CompositionStyle::SrcOver => CompositionOp::Over,
CompositionStyle::SrcAtop => CompositionOp::Atop,
CompositionStyle::DestIn => CompositionOp::DestIn,
CompositionStyle::DestOut => CompositionOp::DestOut,
CompositionStyle::DestOver => CompositionOp::DestOver,
CompositionStyle::DestAtop => CompositionOp::DestAtop,
CompositionStyle::Copy => CompositionOp::Source,
CompositionStyle::Lighter => CompositionOp::Add,
CompositionStyle::Xor => CompositionOp::Xor,
}
}
pub fn from_str(string: &str) -> Option<CompositionStyle> {
match string {
"source-in" => Some(CompositionStyle::SrcIn),
"source-out" => Some(CompositionStyle::SrcOut),
"source-over" => Some(CompositionStyle::SrcOver),
"source-atop" => Some(CompositionStyle::SrcAtop),
"destination-in" => Some(CompositionStyle::DestIn),
"destination-out" => Some(CompositionStyle::DestOut),
"destination-over" => Some(CompositionStyle::DestOver),
"destination-atop" => Some(CompositionStyle::DestAtop),
"copy" => Some(CompositionStyle::Copy),
"lighter" => Some(CompositionStyle::Lighter),
"xor" => Some(CompositionStyle::Xor),
_ => None
}
}
pub fn to_str(&self) -> &str {
match *self {
CompositionStyle::SrcIn => "source-in",
CompositionStyle::SrcOut => "source-out",
CompositionStyle::SrcOver => "source-over",
CompositionStyle::SrcAtop => "source-atop",
CompositionStyle::DestIn => "destination-in",
CompositionStyle::DestOut => "destination-out",
CompositionStyle::DestOver => "destination-over",
CompositionStyle::DestAtop => "destination-atop",
CompositionStyle::Copy => "copy",
CompositionStyle::Lighter => "lighter",
CompositionStyle::Xor => "xor",
}
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum BlendingStyle {
Multiply,
Screen,
Overlay,
Darken,
Lighten,
ColorDodge,
ColorBurn,
HardLight,
SoftLight,
Difference,
Exclusion,
Hue,
Saturation,
Color,
Luminosity,
}
impl BlendingStyle {
fn to_azure_style(&self) -> CompositionOp {
match *self {
BlendingStyle::Multiply => CompositionOp::Multiply,
BlendingStyle::Screen => CompositionOp::Screen,
BlendingStyle::Overlay => CompositionOp::Overlay,
BlendingStyle::Darken => CompositionOp::Darken,
BlendingStyle::Lighten => CompositionOp::Lighten,
BlendingStyle::ColorDodge => CompositionOp::ColorDodge,
BlendingStyle::ColorBurn => CompositionOp::ColorBurn,
BlendingStyle::HardLight => CompositionOp::HardLight,
BlendingStyle::SoftLight => CompositionOp::SoftLight,
BlendingStyle::Difference => CompositionOp::Difference,
BlendingStyle::Exclusion => CompositionOp::Exclusion,
BlendingStyle::Hue => CompositionOp::Hue,
BlendingStyle::Saturation => CompositionOp::Saturation,
BlendingStyle::Color => CompositionOp::Color,
BlendingStyle::Luminosity => CompositionOp::Luminosity,
}
}
pub fn from_str(string: &str) -> Option<BlendingStyle> {
match string {
"multiply" => Some(BlendingStyle::Multiply),
"screen" => Some(BlendingStyle::Screen),
"overlay" => Some(BlendingStyle::Overlay),
"darken" => Some(BlendingStyle::Darken),
"lighten" => Some(BlendingStyle::Lighten),
"color-dodge" => Some(BlendingStyle::ColorDodge),
"color-burn" => Some(BlendingStyle::ColorBurn),
"hard-light" => Some(BlendingStyle::HardLight),
"soft-light" => Some(BlendingStyle::SoftLight),
"difference" => Some(BlendingStyle::Difference),
"exclusion" => Some(BlendingStyle::Exclusion),
"hue" => Some(BlendingStyle::Hue),
"saturation" => Some(BlendingStyle::Saturation),
"color" => Some(BlendingStyle::Color),
"luminosity" => Some(BlendingStyle::Luminosity),
_ => None
}
}
pub fn to_str(&self) -> &str {
match *self {
BlendingStyle::Multiply => "multiply",
BlendingStyle::Screen => "screen",
BlendingStyle::Overlay => "overlay",
BlendingStyle::Darken => "darken",
BlendingStyle::Lighten => "lighten",
BlendingStyle::ColorDodge => "color-dodge",
BlendingStyle::ColorBurn => "color-burn",
BlendingStyle::HardLight => "hard-light",
BlendingStyle::SoftLight => "soft-light",
BlendingStyle::Difference => "difference",
BlendingStyle::Exclusion => "exclusion",
BlendingStyle::Hue => "hue",
BlendingStyle::Saturation => "saturation",
BlendingStyle::Color => "color",
BlendingStyle::Luminosity => "luminosity",
}
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum CompositionOrBlending {
Composition(CompositionStyle),
Blending(BlendingStyle),
}
impl CompositionOrBlending {
fn to_azure_style(&self) -> CompositionOp {
match *self {
CompositionOrBlending::Composition(op) => op.to_azure_style(),
CompositionOrBlending::Blending(op) => op.to_azure_style(),
}
}
pub fn default() -> CompositionOrBlending {
CompositionOrBlending::Composition(CompositionStyle::SrcOver)
}
pub fn from_str(string: &str) -> Option<CompositionOrBlending> {
if let Some(op) = CompositionStyle::from_str(string) {
return Some(CompositionOrBlending::Composition(op));
}
if let Some(op) = BlendingStyle::from_str(string) {
return Some(CompositionOrBlending::Blending(op));
}
None
}
}
/// Used by drawImage to get rid of the extra pixels of the image data that
/// won't be copied to the canvas
/// image_data: Color pixel data of the image