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Implement an FFI and matrix conversions for matrix decomposition/interpolation/recomposition.

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We use Servo backend to decompose/interpolate/recompose matrices on both
main thread and compositor thread.
This commit is contained in:
Boris Chiou 2017-06-07 11:24:25 +08:00
parent 1a3845b719
commit 1d44c273d3
5 changed files with 4392 additions and 4010 deletions
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24
ports/geckolib/glue.rs
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@ -72,12 +72,14 @@ use style::gecko_bindings::structs::{nsCSSFontFaceRule, nsCSSCounterStyleRule};
use style::gecko_bindings::structs::{nsRestyleHint, nsChangeHint, PropertyValuePair};
use style::gecko_bindings::structs::IterationCompositeOperation;
use style::gecko_bindings::structs::MallocSizeOf;
use style::gecko_bindings::structs::RawGeckoGfxMatrix4x4;
use style::gecko_bindings::structs::RawGeckoPresContextOwned;
use style::gecko_bindings::structs::ServoElementSnapshotTable;
use style::gecko_bindings::structs::StyleRuleInclusion;
use style::gecko_bindings::structs::URLExtraData;
use style::gecko_bindings::structs::nsCSSValueSharedList;
use style::gecko_bindings::structs::nsCompatibility;
use style::gecko_bindings::structs::nsStyleTransformMatrix::MatrixTransformOperator;
use style::gecko_bindings::structs::nsresult;
use style::gecko_bindings::sugar::ownership::{FFIArcHelpers, HasFFI, HasArcFFI, HasBoxFFI};
use style::gecko_bindings::sugar::ownership::{HasSimpleFFI, Strong};
@ -1594,6 +1596,28 @@ pub extern "C" fn Servo_GetProperties_Overriding_Animation(element: RawGeckoElem
}
}
#[no_mangle]
pub extern "C" fn Servo_MatrixTransform_Operate(matrix_operator: MatrixTransformOperator,
from: *const RawGeckoGfxMatrix4x4,
to: *const RawGeckoGfxMatrix4x4,
progress: f64,
output: *mut RawGeckoGfxMatrix4x4) {
use self::MatrixTransformOperator::{Accumulate, Interpolate};
use style::properties::longhands::transform::computed_value::ComputedMatrix;
let from = ComputedMatrix::from(unsafe { from.as_ref() }.expect("not a valid 'from' matrix"));
let to = ComputedMatrix::from(unsafe { to.as_ref() }.expect("not a valid 'to' matrix"));
let result = match matrix_operator {
Interpolate => from.interpolate(&to, progress),
Accumulate => from.accumulate(&to, progress as u64),
};
let output = unsafe { output.as_mut() }.expect("not a valid 'output' matrix");
if let Ok(result) = result {
*output = result.into();
};
}
#[no_mangle]
pub extern "C" fn Servo_ParseStyleAttribute(data: *const nsACString,
raw_extra_data: *mut URLExtraData,