mirror of
https://github.com/servo/servo.git
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Canvas: implement global composition and blending.
This commit is contained in:
Mátyás Mustoha
parent
8efd70b01b
commit
a8343a0750
31 changed files with 221 additions and 127 deletions
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@ -2,7 +2,7 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use canvas_paint_task::{FillOrStrokeStyle, LineCapStyle, LineJoinStyle};
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use canvas_paint_task::{FillOrStrokeStyle, LineCapStyle, LineJoinStyle, CompositionOrBlending};
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use geom::matrix2d::Matrix2D;
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use geom::point::Point2D;
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use geom::rect::Rect;
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@ -46,6 +46,7 @@ pub enum Canvas2dMsg {
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SetLineJoin(LineJoinStyle),
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SetMiterLimit(f32),
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SetGlobalAlpha(f32),
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SetGlobalComposition(CompositionOrBlending),
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SetTransform(Matrix2D<f32>),
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}
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@ -4,8 +4,9 @@
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use azure::azure::AzFloat;
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use azure::azure_hl::{DrawTarget, SurfaceFormat, BackendType, StrokeOptions, DrawOptions, Pattern};
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use azure::azure_hl::{ColorPattern, PathBuilder, JoinStyle, CapStyle, DrawSurfaceOptions, Filter};
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use azure::azure_hl::{ColorPattern, PathBuilder, DrawSurfaceOptions, Filter};
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use azure::azure_hl::{GradientStop, LinearGradientPattern, RadialGradientPattern, ExtendMode};
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use azure::azure_hl::{JoinStyle, CapStyle, CompositionOp};
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use canvas_msg::{CanvasMsg, Canvas2dMsg, CanvasCommonMsg};
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use geom::matrix2d::Matrix2D;
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use geom::point::Point2D;
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@ -244,6 +245,7 @@ impl<'a> CanvasPaintTask<'a> {
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Canvas2dMsg::SetMiterLimit(limit) => painter.set_miter_limit(limit),
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Canvas2dMsg::SetTransform(ref matrix) => painter.set_transform(matrix),
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Canvas2dMsg::SetGlobalAlpha(alpha) => painter.set_global_alpha(alpha),
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Canvas2dMsg::SetGlobalComposition(op) => painter.set_global_composition(op),
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Canvas2dMsg::GetImageData(dest_rect, canvas_size, chan) => painter.get_image_data(dest_rect, canvas_size, chan),
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Canvas2dMsg::PutImageData(imagedata, image_data_rect, dirty_rect)
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=> painter.put_image_data(imagedata, image_data_rect, dirty_rect),
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@ -477,6 +479,10 @@ impl<'a> CanvasPaintTask<'a> {
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self.state.draw_options.alpha = alpha;
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}
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fn set_global_composition(&mut self, op: CompositionOrBlending) {
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self.state.draw_options.set_composition_op(op.to_azure_style());
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}
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fn create(size: Size2D<i32>) -> DrawTarget {
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DrawTarget::new(BackendType::Skia, size, SurfaceFormat::B8G8R8A8)
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}
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@ -715,6 +721,185 @@ impl LineJoinStyle {
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}
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}
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#[derive(Copy, Clone, PartialEq)]
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pub enum CompositionStyle {
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SrcIn,
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SrcOut,
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SrcOver,
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SrcAtop,
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DestIn,
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DestOut,
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DestOver,
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DestAtop,
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Copy,
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Lighter,
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Xor,
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}
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impl CompositionStyle {
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fn to_azure_style(&self) -> CompositionOp {
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match *self {
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CompositionStyle::SrcIn => CompositionOp::In,
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CompositionStyle::SrcOut => CompositionOp::Out,
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CompositionStyle::SrcOver => CompositionOp::Over,
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CompositionStyle::SrcAtop => CompositionOp::Atop,
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CompositionStyle::DestIn => CompositionOp::DestIn,
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CompositionStyle::DestOut => CompositionOp::DestOut,
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CompositionStyle::DestOver => CompositionOp::DestOver,
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CompositionStyle::DestAtop => CompositionOp::DestAtop,
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CompositionStyle::Copy => CompositionOp::Source,
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CompositionStyle::Lighter => CompositionOp::Add,
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CompositionStyle::Xor => CompositionOp::Xor,
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}
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}
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pub fn from_str(string: &str) -> Option<CompositionStyle> {
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match string {
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"source-in" => Some(CompositionStyle::SrcIn),
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"source-out" => Some(CompositionStyle::SrcOut),
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"source-over" => Some(CompositionStyle::SrcOver),
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"source-atop" => Some(CompositionStyle::SrcAtop),
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"destination-in" => Some(CompositionStyle::DestIn),
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"destination-out" => Some(CompositionStyle::DestOut),
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"destination-over" => Some(CompositionStyle::DestOver),
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"destination-atop" => Some(CompositionStyle::DestAtop),
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"copy" => Some(CompositionStyle::Copy),
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"lighter" => Some(CompositionStyle::Lighter),
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"xor" => Some(CompositionStyle::Xor),
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_ => None
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}
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}
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pub fn to_str(&self) -> &str {
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match *self {
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CompositionStyle::SrcIn => "source-in",
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CompositionStyle::SrcOut => "source-out",
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CompositionStyle::SrcOver => "source-over",
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CompositionStyle::SrcAtop => "source-atop",
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CompositionStyle::DestIn => "destination-in",
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CompositionStyle::DestOut => "destination-out",
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CompositionStyle::DestOver => "destination-over",
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CompositionStyle::DestAtop => "destination-atop",
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CompositionStyle::Copy => "copy",
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CompositionStyle::Lighter => "lighter",
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CompositionStyle::Xor => "xor",
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}
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}
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}
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#[derive(Copy, Clone, PartialEq)]
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pub enum BlendingStyle {
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Multiply,
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Screen,
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Overlay,
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Darken,
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Lighten,
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ColorDodge,
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ColorBurn,
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HardLight,
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SoftLight,
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Difference,
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Exclusion,
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Hue,
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Saturation,
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Color,
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Luminosity,
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}
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impl BlendingStyle {
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fn to_azure_style(&self) -> CompositionOp {
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match *self {
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BlendingStyle::Multiply => CompositionOp::Multiply,
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BlendingStyle::Screen => CompositionOp::Screen,
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BlendingStyle::Overlay => CompositionOp::Overlay,
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BlendingStyle::Darken => CompositionOp::Darken,
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BlendingStyle::Lighten => CompositionOp::Lighten,
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BlendingStyle::ColorDodge => CompositionOp::ColorDodge,
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BlendingStyle::ColorBurn => CompositionOp::ColorBurn,
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BlendingStyle::HardLight => CompositionOp::HardLight,
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BlendingStyle::SoftLight => CompositionOp::SoftLight,
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BlendingStyle::Difference => CompositionOp::Difference,
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BlendingStyle::Exclusion => CompositionOp::Exclusion,
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BlendingStyle::Hue => CompositionOp::Hue,
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BlendingStyle::Saturation => CompositionOp::Saturation,
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BlendingStyle::Color => CompositionOp::Color,
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BlendingStyle::Luminosity => CompositionOp::Luminosity,
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}
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}
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pub fn from_str(string: &str) -> Option<BlendingStyle> {
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match string {
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"multiply" => Some(BlendingStyle::Multiply),
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"screen" => Some(BlendingStyle::Screen),
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"overlay" => Some(BlendingStyle::Overlay),
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"darken" => Some(BlendingStyle::Darken),
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"lighten" => Some(BlendingStyle::Lighten),
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"color-dodge" => Some(BlendingStyle::ColorDodge),
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"color-burn" => Some(BlendingStyle::ColorBurn),
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"hard-light" => Some(BlendingStyle::HardLight),
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"soft-light" => Some(BlendingStyle::SoftLight),
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"difference" => Some(BlendingStyle::Difference),
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"exclusion" => Some(BlendingStyle::Exclusion),
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"hue" => Some(BlendingStyle::Hue),
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"saturation" => Some(BlendingStyle::Saturation),
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"color" => Some(BlendingStyle::Color),
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"luminosity" => Some(BlendingStyle::Luminosity),
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_ => None
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}
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}
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pub fn to_str(&self) -> &str {
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match *self {
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BlendingStyle::Multiply => "multiply",
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BlendingStyle::Screen => "screen",
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BlendingStyle::Overlay => "overlay",
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BlendingStyle::Darken => "darken",
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BlendingStyle::Lighten => "lighten",
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BlendingStyle::ColorDodge => "color-dodge",
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BlendingStyle::ColorBurn => "color-burn",
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BlendingStyle::HardLight => "hard-light",
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BlendingStyle::SoftLight => "soft-light",
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BlendingStyle::Difference => "difference",
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BlendingStyle::Exclusion => "exclusion",
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BlendingStyle::Hue => "hue",
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BlendingStyle::Saturation => "saturation",
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BlendingStyle::Color => "color",
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BlendingStyle::Luminosity => "luminosity",
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}
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}
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}
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#[derive(Copy, Clone, PartialEq)]
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pub enum CompositionOrBlending {
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Composition(CompositionStyle),
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Blending(BlendingStyle),
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}
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impl CompositionOrBlending {
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fn to_azure_style(&self) -> CompositionOp {
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match *self {
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CompositionOrBlending::Composition(op) => op.to_azure_style(),
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CompositionOrBlending::Blending(op) => op.to_azure_style(),
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}
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}
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pub fn default() -> CompositionOrBlending {
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CompositionOrBlending::Composition(CompositionStyle::SrcOver)
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}
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pub fn from_str(string: &str) -> Option<CompositionOrBlending> {
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if let Some(op) = CompositionStyle::from_str(string) {
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return Some(CompositionOrBlending::Composition(op));
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}
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if let Some(op) = BlendingStyle::from_str(string) {
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return Some(CompositionOrBlending::Blending(op));
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}
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None
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}
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}
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/// Used by drawImage to get rid of the extra pixels of the image data that
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/// won't be copied to the canvas
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/// image_data: Color pixel data of the image
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@ -35,7 +35,7 @@ use dom::bindings::utils::{Reflectable, Reflector, WindowProxyHandler};
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use script_task::ScriptChan;
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use canvas::canvas_paint_task::{CanvasGradientStop, LinearGradientStyle, RadialGradientStyle};
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use canvas::canvas_paint_task::{LineCapStyle, LineJoinStyle};
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use canvas::canvas_paint_task::{LineCapStyle, LineJoinStyle, CompositionOrBlending};
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use cssparser::RGBA;
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use encoding::types::EncodingRef;
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use geom::matrix2d::Matrix2D;
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@ -270,7 +270,7 @@ no_jsmanaged_fields!(RGBA);
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no_jsmanaged_fields!(Matrix2D<T>);
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no_jsmanaged_fields!(StorageType);
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no_jsmanaged_fields!(CanvasGradientStop, LinearGradientStyle, RadialGradientStyle);
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no_jsmanaged_fields!(LineCapStyle, LineJoinStyle);
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no_jsmanaged_fields!(LineCapStyle, LineJoinStyle, CompositionOrBlending);
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impl JSTraceable for Box<ScriptChan+Send> {
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#[inline]
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@ -30,7 +30,7 @@ use geom::size::Size2D;
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use canvas::canvas_msg::{CanvasMsg, Canvas2dMsg, CanvasCommonMsg};
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use canvas::canvas_paint_task::{CanvasPaintTask, FillOrStrokeStyle};
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use canvas::canvas_paint_task::{LinearGradientStyle, RadialGradientStyle};
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use canvas::canvas_paint_task::{LineCapStyle, LineJoinStyle};
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use canvas::canvas_paint_task::{LineCapStyle, LineJoinStyle, CompositionOrBlending};
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use net_traits::image::base::Image;
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use net_traits::image_cache_task::{ImageResponseMsg, Msg};
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@ -61,6 +61,7 @@ pub struct CanvasRenderingContext2D {
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#[jstraceable]
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struct CanvasContextState {
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global_alpha: f64,
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global_composition: CompositionOrBlending,
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image_smoothing_enabled: bool,
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stroke_color: RGBA,
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line_width: f64,
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@ -81,6 +82,7 @@ impl CanvasContextState {
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};
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CanvasContextState {
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global_alpha: 1.0,
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global_composition: CompositionOrBlending::default(),
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image_smoothing_enabled: true,
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stroke_color: black,
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line_width: 1.0,
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@ -421,6 +423,23 @@ impl<'a> CanvasRenderingContext2DMethods for JSRef<'a, CanvasRenderingContext2D>
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self.renderer.send(CanvasMsg::Canvas2d(Canvas2dMsg::SetGlobalAlpha(alpha as f32))).unwrap()
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}
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// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalcompositeoperation
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fn GlobalCompositeOperation(self) -> DOMString {
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let state = self.state.borrow();
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match state.global_composition {
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CompositionOrBlending::Composition(op) => op.to_str().to_owned(),
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CompositionOrBlending::Blending(op) => op.to_str().to_owned(),
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}
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}
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// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalcompositeoperation
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fn SetGlobalCompositeOperation(self, op_str: DOMString) {
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if let Some(op) = CompositionOrBlending::from_str(&op_str) {
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self.state.borrow_mut().global_composition = op;
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self.renderer.send(CanvasMsg::Canvas2d(Canvas2dMsg::SetGlobalComposition(op))).unwrap()
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}
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}
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// https://html.spec.whatwg.org/multipage/#dom-context-2d-fillrect
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fn FillRect(self, x: f64, y: f64, width: f64, height: f64) {
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if let Some(rect) = self.create_drawable_rect(x, y, width, height) {
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@ -50,7 +50,7 @@ interface CanvasRenderingContext2D {
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// compositing
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attribute unrestricted double globalAlpha; // (default 1.0)
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// attribute DOMString globalCompositeOperation; // (default source-over)
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attribute DOMString globalCompositeOperation; // (default source-over)
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// image smoothing
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attribute boolean imageSmoothingEnabled; // (default true)
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@ -1,5 +0,0 @@
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[2d.composite.operation.casesensitive.html]
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type: testharness
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[Canvas test: 2d.composite.operation.casesensitive]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.clear.html]
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type: testharness
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[Canvas test: 2d.composite.operation.clear]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.darker.html]
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type: testharness
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[Canvas test: 2d.composite.operation.darker]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.default.html]
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type: testharness
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[Canvas test: 2d.composite.operation.default]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.highlight.html]
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type: testharness
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[Canvas test: 2d.composite.operation.highlight]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.nullsuffix.html]
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type: testharness
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[Canvas test: 2d.composite.operation.nullsuffix]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.over.html]
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type: testharness
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[Canvas test: 2d.composite.operation.over]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.operation.unrecognised.html]
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type: testharness
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[Canvas test: 2d.composite.operation.unrecognised]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.destination-atop.html]
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type: testharness
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[Canvas test: 2d.composite.solid.destination-atop]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.destination-in.html]
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type: testharness
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[Canvas test: 2d.composite.solid.destination-in]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.destination-out.html]
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type: testharness
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[Canvas test: 2d.composite.solid.destination-out]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.destination-over.html]
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type: testharness
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[Canvas test: 2d.composite.solid.destination-over]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.lighter.html]
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type: testharness
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[Canvas test: 2d.composite.solid.lighter]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.source-out.html]
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type: testharness
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[Canvas test: 2d.composite.solid.source-out]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.solid.xor.html]
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type: testharness
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[Canvas test: 2d.composite.solid.xor]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.transparent.lighter.html]
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type: testharness
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[Canvas test: 2d.composite.transparent.lighter]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.uncovered.fill.copy.html]
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type: testharness
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[fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.uncovered.fill.destination-atop.html]
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type: testharness
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[fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.]
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expected: FAIL
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@ -1,5 +0,0 @@
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[2d.composite.uncovered.fill.destination-in.html]
|
||||
type: testharness
|
||||
[fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
[2d.composite.uncovered.fill.source-in.html]
|
||||
type: testharness
|
||||
[fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
[2d.composite.uncovered.fill.source-out.html]
|
||||
type: testharness
|
||||
[fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
[2d.strokeRect.globalcomposite.html]
|
||||
type: testharness
|
||||
[strokeRect is not affected by globalCompositeOperation]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
[2d.shadow.composite.1.html]
|
||||
type: testharness
|
||||
[Shadows are drawn using globalCompositeOperation]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
[2d.shadow.composite.2.html]
|
||||
type: testharness
|
||||
[Shadows are drawn using globalCompositeOperation]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
[2d.state.saverestore.globalCompositeOperation.html]
|
||||
type: testharness
|
||||
[save()/restore() works for globalCompositeOperation]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -6879,9 +6879,6 @@
|
|||
[CanvasRenderingContext2D interface: operation resetTransform()]
|
||||
expected: FAIL
|
||||
|
||||
[CanvasRenderingContext2D interface: attribute globalCompositeOperation]
|
||||
expected: FAIL
|
||||
|
||||
[CanvasRenderingContext2D interface: operation createPattern(CanvasImageSource,DOMString)]
|
||||
expected: FAIL
|
||||
|
||||
|
|
@ -7017,9 +7014,6 @@
|
|||
[CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "resetTransform" with the proper type (12)]
|
||||
expected: FAIL
|
||||
|
||||
[CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "globalCompositeOperation" with the proper type (14)]
|
||||
expected: FAIL
|
||||
|
||||
[CanvasRenderingContext2D interface: document.createElement("canvas").getContext("2d") must inherit property "strokeStyle" with the proper type (16)]
|
||||
expected: FAIL
|
||||
|
||||
|
|
|
|||
Loading…
Add table
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Reference in a new issue