mirror of
https://github.com/servo/servo.git
synced 2025-06-11 01:50:10 +00:00
bb99b2f3c8
To actually make the multiprocess communication work, we'll need to reroute the task creation to the pipeline or the compositor. But this works as a first step.
586 lines
19 KiB
Rust
586 lines
19 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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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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#![crate_name = "canvas_traits"]
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#![crate_type = "rlib"]
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#![feature(core)]
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#![feature(custom_derive)]
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#![feature(nonzero)]
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#![feature(plugin)]
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#![plugin(serde_macros)]
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extern crate core;
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extern crate azure;
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extern crate euclid;
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extern crate cssparser;
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extern crate gfx_traits;
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extern crate ipc_channel;
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extern crate layers;
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extern crate offscreen_gl_context;
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extern crate serde;
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use azure::azure::{AzFloat, AzColor};
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use azure::azure_hl::{DrawTarget, Pattern, ColorPattern};
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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 azure::azure_hl::{SurfacePattern, SurfaceFormat};
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use cssparser::RGBA;
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use euclid::matrix2d::Matrix2D;
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use euclid::point::Point2D;
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use euclid::rect::Rect;
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use euclid::size::Size2D;
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use gfx_traits::color;
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use ipc_channel::ipc::{IpcSender, IpcSharedMemory};
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use std::sync::mpsc::Sender;
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use layers::platform::surface::NativeSurface;
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use offscreen_gl_context::GLContextAttributes;
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use serde::{Deserialize, Deserializer, Serialize, Serializer};
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use core::nonzero::NonZero;
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#[derive(Clone, Deserialize, Serialize)]
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pub enum CanvasMsg {
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Canvas2d(Canvas2dMsg),
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Common(CanvasCommonMsg),
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FromLayout(FromLayoutMsg),
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FromPaint(FromPaintMsg),
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WebGL(CanvasWebGLMsg),
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum CanvasCommonMsg {
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Close,
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Recreate(Size2D<i32>),
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum FromLayoutMsg {
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SendPixelContents(IpcSender<IpcSharedMemory>),
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}
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#[derive(Clone)]
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pub enum FromPaintMsg {
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SendNativeSurface(Sender<NativeSurface>),
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}
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impl Serialize for FromPaintMsg {
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fn serialize<S>(&self, _: &mut S) -> Result<(),S::Error> where S: Serializer {
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panic!("can't serialize a `FromPaintMsg`!")
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}
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}
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impl Deserialize for FromPaintMsg {
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fn deserialize<D>(_: &mut D) -> Result<FromPaintMsg,D::Error> where D: Deserializer {
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panic!("can't deserialize a `FromPaintMsg`!")
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}
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum Canvas2dMsg {
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Arc(Point2D<f32>, f32, f32, f32, bool),
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ArcTo(Point2D<f32>, Point2D<f32>, f32),
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DrawImage(Vec<u8>, Size2D<f64>, Rect<f64>, Rect<f64>, bool),
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DrawImageSelf(Size2D<f64>, Rect<f64>, Rect<f64>, bool),
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BeginPath,
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BezierCurveTo(Point2D<f32>, Point2D<f32>, Point2D<f32>),
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ClearRect(Rect<f32>),
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Clip,
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ClosePath,
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Fill,
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FillRect(Rect<f32>),
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GetImageData(Rect<f64>, Size2D<f64>, IpcSender<Vec<u8>>),
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LineTo(Point2D<f32>),
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MoveTo(Point2D<f32>),
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PutImageData(Vec<u8>, Rect<f64>, Option<Rect<f64>>),
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QuadraticCurveTo(Point2D<f32>, Point2D<f32>),
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Rect(Rect<f32>),
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RestoreContext,
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SaveContext,
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StrokeRect(Rect<f32>),
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Stroke,
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SetFillStyle(FillOrStrokeStyle),
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SetStrokeStyle(FillOrStrokeStyle),
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SetLineWidth(f32),
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SetLineCap(LineCapStyle),
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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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SetShadowOffsetX(f64),
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SetShadowOffsetY(f64),
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SetShadowBlur(f64),
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SetShadowColor(RGBA),
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum CanvasWebGLMsg {
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GetContextAttributes(IpcSender<GLContextAttributes>),
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ActiveTexture(u32),
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BlendColor(f32, f32, f32, f32),
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BlendEquation(u32),
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BlendEquationSeparate(u32, u32),
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BlendFunc(u32, u32),
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BlendFuncSeparate(u32, u32, u32, u32),
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AttachShader(u32, u32),
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BufferData(u32, Vec<f32>, u32),
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Clear(u32),
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ClearColor(f32, f32, f32, f32),
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CompileShader(u32),
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CreateBuffer(IpcSender<Option<NonZero<u32>>>),
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CreateFramebuffer(IpcSender<Option<NonZero<u32>>>),
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CreateRenderbuffer(IpcSender<Option<NonZero<u32>>>),
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CreateTexture(IpcSender<Option<NonZero<u32>>>),
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CreateProgram(IpcSender<Option<NonZero<u32>>>),
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CreateShader(u32, IpcSender<Option<NonZero<u32>>>),
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DeleteBuffer(u32),
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DeleteFramebuffer(u32),
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DeleteRenderbuffer(u32),
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DeleteTexture(u32),
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DeleteProgram(u32),
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DeleteShader(u32),
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BindBuffer(u32, u32),
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BindFramebuffer(u32, WebGLFramebufferBindingRequest),
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BindRenderbuffer(u32, u32),
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BindTexture(u32, u32),
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DrawArrays(u32, i32, i32),
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EnableVertexAttribArray(u32),
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GetShaderInfoLog(u32, IpcSender<Option<String>>),
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GetShaderParameter(u32, u32, IpcSender<WebGLShaderParameter>),
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GetAttribLocation(u32, String, IpcSender<Option<i32>>),
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GetUniformLocation(u32, String, IpcSender<Option<i32>>),
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LinkProgram(u32),
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ShaderSource(u32, String),
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Uniform4fv(i32, Vec<f32>),
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UseProgram(u32),
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VertexAttribPointer2f(u32, i32, bool, i32, i64),
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Viewport(i32, i32, i32, i32),
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DrawingBufferWidth(IpcSender<i32>),
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DrawingBufferHeight(IpcSender<i32>),
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}
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#[derive(Clone, Copy, PartialEq, Deserialize, Serialize)]
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pub enum WebGLError {
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InvalidEnum,
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InvalidOperation,
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InvalidValue,
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OutOfMemory,
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ContextLost,
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}
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pub type WebGLResult<T> = Result<T, WebGLError>;
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#[derive(Clone, Deserialize, Serialize)]
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pub enum WebGLFramebufferBindingRequest {
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Explicit(u32),
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Default,
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum WebGLShaderParameter {
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Int(i32),
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Bool(bool),
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Invalid,
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub struct CanvasGradientStop {
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pub offset: f64,
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pub color: RGBA,
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub struct LinearGradientStyle {
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pub x0: f64,
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pub y0: f64,
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pub x1: f64,
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pub y1: f64,
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pub stops: Vec<CanvasGradientStop>
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}
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impl LinearGradientStyle {
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pub fn new(x0: f64, y0: f64, x1: f64, y1: f64, stops: Vec<CanvasGradientStop>)
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-> LinearGradientStyle {
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LinearGradientStyle {
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x0: x0,
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y0: y0,
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x1: x1,
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y1: y1,
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stops: stops,
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}
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}
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub struct RadialGradientStyle {
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pub x0: f64,
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pub y0: f64,
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pub r0: f64,
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pub x1: f64,
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pub y1: f64,
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pub r1: f64,
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pub stops: Vec<CanvasGradientStop>
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}
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impl RadialGradientStyle {
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pub fn new(x0: f64, y0: f64, r0: f64, x1: f64, y1: f64, r1: f64, stops: Vec<CanvasGradientStop>)
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-> RadialGradientStyle {
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RadialGradientStyle {
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x0: x0,
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y0: y0,
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r0: r0,
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x1: x1,
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y1: y1,
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r1: r1,
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stops: stops,
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}
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}
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub struct SurfaceStyle {
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pub surface_data: Vec<u8>,
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pub surface_size: Size2D<i32>,
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pub repeat_x: bool,
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pub repeat_y: bool,
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}
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impl SurfaceStyle {
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pub fn new(surface_data: Vec<u8>, surface_size: Size2D<i32>, repeat_x: bool, repeat_y: bool)
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-> SurfaceStyle {
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SurfaceStyle {
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surface_data: surface_data,
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surface_size: surface_size,
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repeat_x: repeat_x,
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repeat_y: repeat_y,
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}
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}
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}
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#[derive(Clone, Deserialize, Serialize)]
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pub enum FillOrStrokeStyle {
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Color(RGBA),
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LinearGradient(LinearGradientStyle),
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RadialGradient(RadialGradientStyle),
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Surface(SurfaceStyle),
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}
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impl FillOrStrokeStyle {
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pub fn to_azure_pattern(&self, drawtarget: &DrawTarget) -> Pattern {
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match *self {
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FillOrStrokeStyle::Color(ref color) => {
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Pattern::Color(ColorPattern::new(color::new(color.red,
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color.green,
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color.blue,
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color.alpha)))
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},
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FillOrStrokeStyle::LinearGradient(ref linear_gradient_style) => {
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let gradient_stops: Vec<GradientStop> = linear_gradient_style.stops.iter().map(|s| {
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GradientStop {
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offset: s.offset as AzFloat,
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color: color::new(s.color.red, s.color.green, s.color.blue, s.color.alpha)
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}
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}).collect();
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Pattern::LinearGradient(LinearGradientPattern::new(
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&Point2D::new(linear_gradient_style.x0 as AzFloat, linear_gradient_style.y0 as AzFloat),
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&Point2D::new(linear_gradient_style.x1 as AzFloat, linear_gradient_style.y1 as AzFloat),
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drawtarget.create_gradient_stops(&gradient_stops, ExtendMode::Clamp),
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&Matrix2D::identity()))
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},
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FillOrStrokeStyle::RadialGradient(ref radial_gradient_style) => {
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let gradient_stops: Vec<GradientStop> = radial_gradient_style.stops.iter().map(|s| {
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GradientStop {
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offset: s.offset as AzFloat,
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color: color::new(s.color.red, s.color.green, s.color.blue, s.color.alpha)
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}
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}).collect();
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Pattern::RadialGradient(RadialGradientPattern::new(
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&Point2D::new(radial_gradient_style.x0 as AzFloat, radial_gradient_style.y0 as AzFloat),
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&Point2D::new(radial_gradient_style.x1 as AzFloat, radial_gradient_style.y1 as AzFloat),
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radial_gradient_style.r0 as AzFloat, radial_gradient_style.r1 as AzFloat,
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drawtarget.create_gradient_stops(&gradient_stops, ExtendMode::Clamp),
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&Matrix2D::identity()))
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},
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FillOrStrokeStyle::Surface(ref surface_style) => {
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let source_surface = drawtarget.create_source_surface_from_data(
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&surface_style.surface_data,
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surface_style.surface_size,
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surface_style.surface_size.width * 4,
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SurfaceFormat::B8G8R8A8);
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Pattern::Surface(SurfacePattern::new(
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source_surface.azure_source_surface,
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surface_style.repeat_x,
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surface_style.repeat_y,
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&Matrix2D::identity()))
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}
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}
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}
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}
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#[derive(Copy, Clone, PartialEq, Deserialize, Serialize)]
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pub enum LineCapStyle {
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Butt = 0,
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Round = 1,
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Square = 2,
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}
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impl LineCapStyle {
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pub fn to_azure_style(&self) -> CapStyle {
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match *self {
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LineCapStyle::Butt => CapStyle::Butt,
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LineCapStyle::Round => CapStyle::Round,
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LineCapStyle::Square => CapStyle::Square,
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}
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}
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pub fn from_str(string: &str) -> Option<LineCapStyle> {
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match string {
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"butt" => Some(LineCapStyle::Butt),
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"round" => Some(LineCapStyle::Round),
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"square" => Some(LineCapStyle::Square),
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_ => None
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}
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}
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}
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#[derive(Copy, Clone, PartialEq, Deserialize, Serialize)]
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pub enum LineJoinStyle {
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Round = 0,
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Bevel = 1,
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Miter = 2,
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}
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impl LineJoinStyle {
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pub fn to_azure_style(&self) -> JoinStyle {
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match *self {
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LineJoinStyle::Round => JoinStyle::Round,
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LineJoinStyle::Bevel => JoinStyle::Bevel,
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LineJoinStyle::Miter => JoinStyle::Miter,
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}
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}
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pub fn from_str(string: &str) -> Option<LineJoinStyle> {
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match string {
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"round" => Some(LineJoinStyle::Round),
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"bevel" => Some(LineJoinStyle::Bevel),
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"miter" => Some(LineJoinStyle::Miter),
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_ => None
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}
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}
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}
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#[derive(Copy, Clone, PartialEq, Deserialize, Serialize)]
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pub enum RepetitionStyle {
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Repeat,
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RepeatX,
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RepeatY,
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NoRepeat,
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}
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impl RepetitionStyle {
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pub fn from_str(string: &str) -> Option<RepetitionStyle> {
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match string {
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"repeat" => Some(RepetitionStyle::Repeat),
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"repeat-x" => Some(RepetitionStyle::RepeatX),
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"repeat-y" => Some(RepetitionStyle::RepeatY),
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"no-repeat" => Some(RepetitionStyle::NoRepeat),
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_ => None
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}
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}
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}
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#[derive(Copy, Clone, PartialEq, Deserialize, Serialize)]
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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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pub 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, Deserialize, Serialize)]
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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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pub 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,
|
|
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, Deserialize, Serialize)]
|
|
pub enum CompositionOrBlending {
|
|
Composition(CompositionStyle),
|
|
Blending(BlendingStyle),
|
|
}
|
|
|
|
impl CompositionOrBlending {
|
|
pub 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
|
|
}
|
|
}
|
|
|
|
pub trait ToAzColor {
|
|
fn to_azcolor(&self) -> AzColor;
|
|
}
|
|
|
|
impl ToAzColor for RGBA {
|
|
fn to_azcolor(&self) -> AzColor {
|
|
color::rgba(self.red as AzFloat,
|
|
self.green as AzFloat,
|
|
self.blue as AzFloat,
|
|
self.alpha as AzFloat)
|
|
}
|
|
}
|