optimizing transforms
diff --git a/player/js/3rd_party/transformation-matrix.js b/player/js/3rd_party/transformation-matrix.js
index 21681d9..ede973a 100644
--- a/player/js/3rd_party/transformation-matrix.js
+++ b/player/js/3rd_party/transformation-matrix.js
@@ -76,22 +76,41 @@
}
function translate(tx, ty) {
- if(tx === 0 && ty === 0){
- return this;
+ if(tx !== 0){
+ this.props[4] = this.props[0] * tx + this.props[2] * ty + this.props[4];
}
- return this._t(1, 0, 0, 1, tx, ty);
+ if(ty !== 0){
+ this.props[5] = this.props[1] * tx + this.props[3] * ty + this.props[5];
+ }
+ return this;
}
function translateX(tx) {
- return this._t(1, 0, 0, 1, tx, 0);
+ if(tx !== 0){
+ this.props[4] = this.props[0] * tx + this.props[2] * ty + this.props[4];
+ }
+ return this;
}
function translateY(ty) {
- return this._t(1, 0, 0, 1, 0, ty);
+ if(ty !== 0){
+ this.props[5] = this.props[1] * tx + this.props[3] * ty + this.props[5];
+ }
+ return this;
}
function transform(a2, b2, c2, d2, e2, f2) {
+ if(a2 === 1 && b2 === 0 && c2 === 0 && d2 === 1){
+ if(e2 !== 0){
+ this.props[4] = this.props[0] * e2 + this.props[2] * f2 + this.props[4];
+ }
+ if(f2 !== 0){
+ this.props[5] = this.props[1] * e2 + this.props[3] * f2 + this.props[5];
+ }
+ return this;
+ }
+
a1 = this.props[0];
b1 = this.props[1];
c1 = this.props[2];
