mirror of
https://github.com/servo/servo.git
synced 2025-08-06 22:15:33 +01:00
Auto merge of #6214 - glennw:parse-transforms, r=pcwalton
* Add parser support for 3d transforms. * Change ComputedMatrix to a representation that suits interpolation. * Switch stacking contexts to use 4x4 matrices. The transforms themselves are still converted to 2d and handled by azure for now, but this is a small standalone part that can be landed now to make it easier to review. <!-- Reviewable:start --> [<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/6214) <!-- Reviewable:end -->
This commit is contained in:
bors-servo
commit
05212b702d
9 changed files with 527 additions and 183 deletions
|
|
@ -3100,104 +3100,49 @@ pub mod longhands {
|
|||
use values::computed::{ToComputedValue, Context};
|
||||
|
||||
use cssparser::ToCss;
|
||||
use std::f32;
|
||||
use std::ops::Mul;
|
||||
use std::fmt;
|
||||
use util::geometry::Au;
|
||||
|
||||
pub mod computed_value {
|
||||
use values::CSSFloat;
|
||||
use values::computed;
|
||||
|
||||
use std::ops::Mul;
|
||||
use values::specified;
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq)]
|
||||
pub struct ComputedMatrix {
|
||||
pub m11: CSSFloat, pub m12: CSSFloat,
|
||||
pub m21: CSSFloat, pub m22: CSSFloat,
|
||||
pub m31: computed::LengthAndPercentage, pub m32: computed::LengthAndPercentage,
|
||||
pub m11: CSSFloat, pub m12: CSSFloat, pub m13: CSSFloat, pub m14: CSSFloat,
|
||||
pub m21: CSSFloat, pub m22: CSSFloat, pub m23: CSSFloat, pub m24: CSSFloat,
|
||||
pub m31: CSSFloat, pub m32: CSSFloat, pub m33: CSSFloat, pub m34: CSSFloat,
|
||||
pub m41: computed::LengthAndPercentage,
|
||||
pub m42: computed::LengthAndPercentage,
|
||||
pub m43: CSSFloat,
|
||||
pub m44: CSSFloat,
|
||||
}
|
||||
|
||||
impl Mul<ComputedMatrix> for ComputedMatrix {
|
||||
type Output = ComputedMatrix;
|
||||
|
||||
fn mul(self, other: ComputedMatrix) -> ComputedMatrix {
|
||||
ComputedMatrix {
|
||||
m11: self.m11*other.m11 + self.m12*other.m21,
|
||||
m12: self.m11*other.m12 + self.m12*other.m22,
|
||||
m21: self.m21*other.m11 + self.m22*other.m21,
|
||||
m22: self.m21*other.m12 + self.m22*other.m22,
|
||||
m31: self.m31.clone()*other.m11 + self.m32.clone()*other.m21 + other.m31,
|
||||
m32: self.m31*other.m12 + self.m32*other.m22 + other.m32,
|
||||
}
|
||||
}
|
||||
#[derive(Clone, Debug, PartialEq)]
|
||||
pub enum ComputedOperation {
|
||||
Matrix(ComputedMatrix),
|
||||
Skew(CSSFloat, CSSFloat),
|
||||
Translate(computed::LengthAndPercentage,
|
||||
computed::LengthAndPercentage,
|
||||
computed::Length),
|
||||
Scale(CSSFloat, CSSFloat, CSSFloat),
|
||||
Rotate(CSSFloat, CSSFloat, CSSFloat, specified::Angle),
|
||||
Perspective(computed::Length),
|
||||
}
|
||||
|
||||
impl ComputedMatrix {
|
||||
#[inline]
|
||||
fn new(m11: CSSFloat,
|
||||
m12: CSSFloat,
|
||||
m21: CSSFloat,
|
||||
m22: CSSFloat,
|
||||
m31: computed::LengthAndPercentage,
|
||||
m32: computed::LengthAndPercentage)
|
||||
-> ComputedMatrix {
|
||||
ComputedMatrix {
|
||||
m11: m11, m12: m12,
|
||||
m21: m21, m22: m22,
|
||||
m31: m31, m32: m32,
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn identity() -> ComputedMatrix {
|
||||
ComputedMatrix {
|
||||
m11: 1.0, m12: 0.0,
|
||||
m21: 0.0, m22: 1.0,
|
||||
m31: computed::LengthAndPercentage::zero(),
|
||||
m32: computed::LengthAndPercentage::zero(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn scale(&mut self, sx: CSSFloat, sy: CSSFloat) {
|
||||
*self = ComputedMatrix::new(sx, 0.0,
|
||||
0.0, sy,
|
||||
computed::LengthAndPercentage::zero(),
|
||||
computed::LengthAndPercentage::zero()) *
|
||||
(*self).clone()
|
||||
}
|
||||
|
||||
pub fn skew(&mut self, sx: CSSFloat, sy: CSSFloat) {
|
||||
*self = ComputedMatrix::new(1.0, sx,
|
||||
sy, 1.0,
|
||||
computed::LengthAndPercentage::zero(),
|
||||
computed::LengthAndPercentage::zero()) *
|
||||
(*self).clone()
|
||||
}
|
||||
|
||||
pub fn translate(&mut self,
|
||||
tx: computed::LengthAndPercentage,
|
||||
ty: computed::LengthAndPercentage) {
|
||||
*self = ComputedMatrix::new(1.0, 0.0, 0.0, 1.0, tx, ty) * (*self).clone()
|
||||
}
|
||||
|
||||
pub fn rotate(&mut self, theta: CSSFloat) {
|
||||
*self = ComputedMatrix::new(theta.cos(), -theta.sin(),
|
||||
theta.sin(), theta.cos(),
|
||||
computed::LengthAndPercentage::zero(),
|
||||
computed::LengthAndPercentage::zero()) *
|
||||
(*self).clone()
|
||||
}
|
||||
}
|
||||
|
||||
pub type T = Option<ComputedMatrix>;
|
||||
pub type T = Option<Vec<ComputedOperation>>;
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug, PartialEq)]
|
||||
pub struct SpecifiedMatrix {
|
||||
m11: CSSFloat, m12: CSSFloat,
|
||||
m21: CSSFloat, m22: CSSFloat,
|
||||
m31: specified::LengthAndPercentage, m32: specified::LengthAndPercentage,
|
||||
m11: CSSFloat, m12: CSSFloat, m13: CSSFloat, m14: CSSFloat,
|
||||
m21: CSSFloat, m22: CSSFloat, m23: CSSFloat, m24: CSSFloat,
|
||||
m31: CSSFloat, m32: CSSFloat, m33: CSSFloat, m34: CSSFloat,
|
||||
m41: specified::LengthAndPercentage,
|
||||
m42: specified::LengthAndPercentage,
|
||||
m43: specified::Length,
|
||||
m44: CSSFloat,
|
||||
}
|
||||
|
||||
impl ToCss for SpecifiedMatrix {
|
||||
|
|
@ -3207,38 +3152,6 @@ pub mod longhands {
|
|||
}
|
||||
}
|
||||
|
||||
impl Mul<SpecifiedMatrix> for SpecifiedMatrix {
|
||||
type Output = SpecifiedMatrix;
|
||||
|
||||
fn mul(self, other: SpecifiedMatrix) -> SpecifiedMatrix {
|
||||
SpecifiedMatrix {
|
||||
m11: self.m11*other.m11 + self.m12*other.m21,
|
||||
m12: self.m11*other.m12 + self.m12*other.m22,
|
||||
m21: self.m21*other.m11 + self.m22*other.m21,
|
||||
m22: self.m21*other.m12 + self.m22*other.m22,
|
||||
m31: self.m31.clone()*other.m11 + self.m32.clone()*other.m21 + other.m31,
|
||||
m32: self.m31*other.m12 + self.m32*other.m22 + other.m32,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl SpecifiedMatrix {
|
||||
#[inline]
|
||||
fn new(m11: CSSFloat,
|
||||
m12: CSSFloat,
|
||||
m21: CSSFloat,
|
||||
m22: CSSFloat,
|
||||
m31: specified::LengthAndPercentage,
|
||||
m32: specified::LengthAndPercentage)
|
||||
-> SpecifiedMatrix {
|
||||
SpecifiedMatrix {
|
||||
m11: m11, m12: m12,
|
||||
m21: m21, m22: m22,
|
||||
m31: m31, m32: m32,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_two_lengths_or_percentages(input: &mut Parser)
|
||||
-> Result<(specified::LengthAndPercentage,
|
||||
specified::LengthAndPercentage),()> {
|
||||
|
|
@ -3262,10 +3175,13 @@ pub mod longhands {
|
|||
#[derive(Clone, Debug, PartialEq)]
|
||||
enum SpecifiedOperation {
|
||||
Matrix(SpecifiedMatrix),
|
||||
Translate(specified::LengthAndPercentage, specified::LengthAndPercentage),
|
||||
Scale(CSSFloat, CSSFloat),
|
||||
Rotate(specified::Angle),
|
||||
Skew(CSSFloat, CSSFloat),
|
||||
Translate(specified::LengthAndPercentage,
|
||||
specified::LengthAndPercentage,
|
||||
specified::Length),
|
||||
Scale(CSSFloat, CSSFloat, CSSFloat),
|
||||
Rotate(CSSFloat, CSSFloat, CSSFloat, specified::Angle),
|
||||
Perspective(specified::Length),
|
||||
}
|
||||
|
||||
impl ToCss for SpecifiedOperation {
|
||||
|
|
@ -3318,23 +3234,54 @@ pub mod longhands {
|
|||
if values.len() != 6 {
|
||||
return Err(())
|
||||
}
|
||||
let (tx, ty) =
|
||||
let (tx, ty, tz) =
|
||||
(specified::Length::Absolute(Au::from_f32_px(values[4])),
|
||||
specified::Length::Absolute(Au::from_f32_px(values[5])));
|
||||
specified::Length::Absolute(Au::from_f32_px(values[5])),
|
||||
specified::Length::Absolute(Au(0)));
|
||||
let (tx, ty) =
|
||||
(specified::LengthAndPercentage::from_length(tx),
|
||||
specified::LengthAndPercentage::from_length(ty));
|
||||
result.push(SpecifiedOperation::Matrix(
|
||||
SpecifiedMatrix::new(values[0], values[1],
|
||||
values[2], values[3],
|
||||
tx, ty)));
|
||||
SpecifiedMatrix {
|
||||
m11: values[0], m12: values[1], m13: 0.0, m14: 0.0,
|
||||
m21: values[2], m22: values[3], m23: 0.0, m24: 0.0,
|
||||
m31: 0.0, m32: 0.0, m33: 1.0, m34: 0.0,
|
||||
m41: tx, m42: ty, m43: tz, m44: 1.0
|
||||
}));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"matrix3d" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let values = try!(input.parse_comma_separated(|input| {
|
||||
input.expect_number()
|
||||
}));
|
||||
if values.len() != 16 {
|
||||
return Err(())
|
||||
}
|
||||
let (tx, ty, tz) =
|
||||
(specified::Length::Absolute(Au::from_f32_px(values[12])),
|
||||
specified::Length::Absolute(Au::from_f32_px(values[13])),
|
||||
specified::Length::Absolute(Au::from_f32_px(values[14])));
|
||||
let (tx, ty) =
|
||||
(specified::LengthAndPercentage::from_length(tx),
|
||||
specified::LengthAndPercentage::from_length(ty));
|
||||
result.push(SpecifiedOperation::Matrix(
|
||||
SpecifiedMatrix {
|
||||
m11: values[ 0], m12: values[ 1], m13: values[ 2], m14: values[ 3],
|
||||
m21: values[ 4], m22: values[ 5], m23: values[ 6], m24: values[ 7],
|
||||
m31: values[ 8], m32: values[ 9], m33: values[10], m34: values[11],
|
||||
m41: tx, m42: ty, m43: tz, m44: values[15]
|
||||
}));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"translate" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let (tx, ty) = try!(parse_two_lengths_or_percentages(input));
|
||||
result.push(SpecifiedOperation::Translate(tx, ty));
|
||||
result.push(SpecifiedOperation::Translate(tx,
|
||||
ty,
|
||||
specified::Length::Absolute(Au(0))));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
|
|
@ -3344,7 +3291,8 @@ pub mod longhands {
|
|||
result.push(SpecifiedOperation::Translate(
|
||||
specified::LengthAndPercentage::from_length_or_percentage(
|
||||
&tx),
|
||||
specified::LengthAndPercentage::zero()));
|
||||
specified::LengthAndPercentage::zero(),
|
||||
specified::Length::Absolute(Au(0))));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
|
|
@ -3354,35 +3302,114 @@ pub mod longhands {
|
|||
result.push(SpecifiedOperation::Translate(
|
||||
specified::LengthAndPercentage::zero(),
|
||||
specified::LengthAndPercentage::from_length_or_percentage(
|
||||
&ty)));
|
||||
&ty),
|
||||
specified::Length::Absolute(Au(0))));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"translatez" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let tz = try!(specified::Length::parse(input));
|
||||
result.push(SpecifiedOperation::Translate(
|
||||
specified::LengthAndPercentage::zero(),
|
||||
specified::LengthAndPercentage::zero(),
|
||||
tz));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"translate3d" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let tx = try!(specified::LengthOrPercentage::parse(input));
|
||||
try!(input.expect_comma());
|
||||
let ty = try!(specified::LengthOrPercentage::parse(input));
|
||||
try!(input.expect_comma());
|
||||
let tz = try!(specified::Length::parse(input));
|
||||
result.push(SpecifiedOperation::Translate(
|
||||
specified::LengthAndPercentage::from_length_or_percentage(&tx),
|
||||
specified::LengthAndPercentage::from_length_or_percentage(&ty),
|
||||
tz));
|
||||
Ok(())
|
||||
}))
|
||||
|
||||
},
|
||||
"scale" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let (sx, sy) = try!(parse_two_floats(input));
|
||||
result.push(SpecifiedOperation::Scale(sx, sy));
|
||||
result.push(SpecifiedOperation::Scale(sx, sy, 1.0));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"scalex" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let sx = try!(input.expect_number());
|
||||
result.push(SpecifiedOperation::Scale(sx, 1.0));
|
||||
result.push(SpecifiedOperation::Scale(sx, 1.0, 1.0));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"scaley" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let sy = try!(input.expect_number());
|
||||
result.push(SpecifiedOperation::Scale(1.0, sy));
|
||||
result.push(SpecifiedOperation::Scale(1.0, sy, 1.0));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"scalez" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let sz = try!(input.expect_number());
|
||||
result.push(SpecifiedOperation::Scale(1.0, 1.0, sz));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"scale3d" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let sx = try!(input.expect_number());
|
||||
try!(input.expect_comma());
|
||||
let sy = try!(input.expect_number());
|
||||
try!(input.expect_comma());
|
||||
let sz = try!(input.expect_number());
|
||||
result.push(SpecifiedOperation::Scale(sx, sy, sz));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"rotate" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let theta = try!(specified::Angle::parse(input));
|
||||
result.push(SpecifiedOperation::Rotate(theta));
|
||||
result.push(SpecifiedOperation::Rotate(0.0, 0.0, 1.0, theta));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"rotatex" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let theta = try!(specified::Angle::parse(input));
|
||||
result.push(SpecifiedOperation::Rotate(1.0, 0.0, 0.0, theta));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"rotatey" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let theta = try!(specified::Angle::parse(input));
|
||||
result.push(SpecifiedOperation::Rotate(0.0, 1.0, 0.0, theta));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"rotatez" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let theta = try!(specified::Angle::parse(input));
|
||||
result.push(SpecifiedOperation::Rotate(0.0, 0.0, 1.0, theta));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"rotate3d" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let ax = try!(input.expect_number());
|
||||
try!(input.expect_comma());
|
||||
let ay = try!(input.expect_number());
|
||||
try!(input.expect_comma());
|
||||
let az = try!(input.expect_number());
|
||||
try!(input.expect_comma());
|
||||
let theta = try!(specified::Angle::parse(input));
|
||||
// TODO(gw): Check the axis can be normalized!!
|
||||
result.push(SpecifiedOperation::Rotate(ax, ay, az, theta));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
|
|
@ -3406,6 +3433,13 @@ pub mod longhands {
|
|||
result.push(SpecifiedOperation::Skew(1.0, sy));
|
||||
Ok(())
|
||||
}))
|
||||
},
|
||||
"perspective" => {
|
||||
try!(input.parse_nested_block(|input| {
|
||||
let d = try!(specified::Length::parse(input));
|
||||
result.push(SpecifiedOperation::Perspective(d));
|
||||
Ok(())
|
||||
}))
|
||||
}
|
||||
_ => return Err(())
|
||||
}
|
||||
|
|
@ -3427,32 +3461,41 @@ pub mod longhands {
|
|||
return None
|
||||
}
|
||||
|
||||
let mut result = computed_value::ComputedMatrix::identity();
|
||||
let mut result = vec!();
|
||||
for operation in self.0.iter() {
|
||||
match *operation {
|
||||
SpecifiedOperation::Matrix(ref matrix) => {
|
||||
result = computed_value::ComputedMatrix {
|
||||
m11: matrix.m11, m12: matrix.m12,
|
||||
m21: matrix.m21, m22: matrix.m22,
|
||||
m31: matrix.m31.to_computed_value(context),
|
||||
m32: matrix.m32.to_computed_value(context),
|
||||
} * result
|
||||
let m = computed_value::ComputedMatrix {
|
||||
m11: matrix.m11, m12: matrix.m12, m13: matrix.m13, m14: matrix.m14,
|
||||
m21: matrix.m21, m22: matrix.m22, m23: matrix.m23, m24: matrix.m24,
|
||||
m31: matrix.m31, m32: matrix.m32, m33: matrix.m33, m34: matrix.m34,
|
||||
m41: matrix.m41.to_computed_value(context),
|
||||
m42: matrix.m42.to_computed_value(context),
|
||||
m43: matrix.m43.to_computed_value(context).to_f32_px(),
|
||||
m44: matrix.m44
|
||||
};
|
||||
result.push(computed_value::ComputedOperation::Matrix(m));
|
||||
}
|
||||
SpecifiedOperation::Translate(ref tx, ref ty) => {
|
||||
result.translate(tx.to_computed_value(context),
|
||||
ty.to_computed_value(context))
|
||||
SpecifiedOperation::Translate(ref tx, ref ty, ref tz) => {
|
||||
result.push(computed_value::ComputedOperation::Translate(tx.to_computed_value(context),
|
||||
ty.to_computed_value(context),
|
||||
tz.to_computed_value(context)));
|
||||
}
|
||||
SpecifiedOperation::Scale(sx, sy) => {
|
||||
result.scale(sx, sy)
|
||||
SpecifiedOperation::Scale(sx, sy, sz) => {
|
||||
result.push(computed_value::ComputedOperation::Scale(sx, sy, sz));
|
||||
}
|
||||
SpecifiedOperation::Rotate(ref theta) => {
|
||||
result.rotate(f32::consts::PI_2 - theta.radians());
|
||||
SpecifiedOperation::Rotate(ax, ay, az, theta) => {
|
||||
result.push(computed_value::ComputedOperation::Rotate(ax, ay, az, theta));
|
||||
}
|
||||
SpecifiedOperation::Skew(sx, sy) => {
|
||||
result.skew(sx, sy)
|
||||
result.push(computed_value::ComputedOperation::Skew(sx, sy));
|
||||
}
|
||||
}
|
||||
SpecifiedOperation::Perspective(d) => {
|
||||
result.push(computed_value::ComputedOperation::Perspective(d.to_computed_value(context)));
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
Some(result)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue