| Index: src/math.js
|
| diff --git a/src/math.js b/src/math.js
|
| index 2df0ec2a5f4a442e998afafcddc2c5e542b0da5b..8e21bee230db9991ad53036fed723f83485dc7f7 100644
|
| --- a/src/math.js
|
| +++ b/src/math.js
|
| @@ -78,9 +78,7 @@ function MathCeil(x) {
|
| }
|
|
|
| // ECMA 262 - 15.8.2.7
|
| -function MathCos(x) {
|
| - return MathCosImpl(x);
|
| -}
|
| +var MathCos;
|
|
|
| // ECMA 262 - 15.8.2.8
|
| function MathExp(x) {
|
| @@ -178,9 +176,7 @@ function MathRound(x) {
|
| }
|
|
|
| // ECMA 262 - 15.8.2.16
|
| -function MathSin(x) {
|
| - return MathSinImpl(x);
|
| -}
|
| +var MathSin;
|
|
|
| // ECMA 262 - 15.8.2.17
|
| function MathSqrt(x) {
|
| @@ -189,7 +185,7 @@ function MathSqrt(x) {
|
|
|
| // ECMA 262 - 15.8.2.18
|
| function MathTan(x) {
|
| - return MathSinImpl(x) / MathCosImpl(x);
|
| + return MathSin(x) / MathCos(x);
|
| }
|
|
|
| // Non-standard extension.
|
| @@ -198,18 +194,6 @@ function MathImul(x, y) {
|
| }
|
|
|
|
|
| -var MathSinImpl = function(x) {
|
| - InitTrigonometricFunctions();
|
| - return MathSinImpl(x);
|
| -}
|
| -
|
| -
|
| -var MathCosImpl = function(x) {
|
| - InitTrigonometricFunctions();
|
| - return MathCosImpl(x);
|
| -}
|
| -
|
| -
|
| var InitTrigonometricFunctions;
|
|
|
|
|
| @@ -230,8 +214,11 @@ function SetupTrigonometricFunctions() {
|
| // Note that pi_half > pi_half_1 + pi_half_2
|
| var pi_half_1 = 1.570796325802803040; // 0x00000054fb21f93f
|
| var pi_half_2 = 9.920935796805404252e-10; // 0x3326a611460b113e
|
| - var table_sin;
|
| - var table_cos_interval;
|
| +
|
| + var table_sin = new InternalDoubleArray(samples + 2);
|
| + var table_cos_interval = new InternalDoubleArray(samples + 2);
|
| + %PopulateTrigonometricTable(table_sin, table_cos_interval, samples);
|
| +
|
|
|
| // This implements sine using the following algorithm.
|
| // 1) Multiplication takes care of to-number conversion.
|
| @@ -283,29 +270,19 @@ function SetupTrigonometricFunctions() {
|
| * (1 - (phase & 2)) + 0;
|
| }
|
|
|
| - var MathSinInterpolation = function(x) {
|
| + MathSin = function(x) {
|
| x = x * 1; // Convert to number and deal with -0.
|
| if (%_IsMinusZero(x)) return x;
|
| return Interpolation(x, 0);
|
| }
|
|
|
| // Cosine is sine with a phase offset.
|
| - var MathCosInterpolation = function(x) {
|
| + MathCos = function(x) {
|
| x = MathAbs(x); // Convert to number and get rid of -0.
|
| return Interpolation(x, 1);
|
| };
|
|
|
| %SetInlineBuiltinFlag(Interpolation);
|
| - %SetInlineBuiltinFlag(MathSinInterpolation);
|
| - %SetInlineBuiltinFlag(MathCosInterpolation);
|
| -
|
| - InitTrigonometricFunctions = function() {
|
| - table_sin = new global.Float64Array(samples + 2);
|
| - table_cos_interval = new global.Float64Array(samples + 2);
|
| - %PopulateTrigonometricTable(table_sin, table_cos_interval, samples);
|
| - MathSinImpl = MathSinInterpolation;
|
| - MathCosImpl = MathCosInterpolation;
|
| - }
|
| }
|
|
|
| SetupTrigonometricFunctions();
|
|
|