From a6128d750654f2428315d5832672a3a08eb2bccb Mon Sep 17 00:00:00 2001 From: wangqm0513 Date: Mon, 24 Nov 2014 09:50:12 +0800 Subject: [PATCH] Update MathUtilNeon64.inl Rewrite CrossVec3 function code --- cocos/math/MathUtilNeon64.inl | 37 +++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 13 deletions(-) diff --git a/cocos/math/MathUtilNeon64.inl b/cocos/math/MathUtilNeon64.inl index c6fdd70b24..9832669907 100644 --- a/cocos/math/MathUtilNeon64.inl +++ b/cocos/math/MathUtilNeon64.inl @@ -225,23 +225,34 @@ inline void MathUtilNeon64::transformVec4(const float* m, const float* v, float* inline void MathUtilNeon64::crossVec3(const float* v1, const float* v2, float* dst) { - asm volatile( - "ld1 {v0.2s}, [%2] \n\t" // - "ld1 {v0.s}[3], [%1] \n\t" // - "mov v0.s[2], v0.s[1] \n\t" // q0 = (v1y, v1z, v1z, v1x) + asm volatile( + "ld1 {v0.2s}, [%2] \n\t" + "ld1 {v0.s}[2], [%1] \n\t" + "mov v0.s[3], v0.s[0] \n\t" // q0 = (v1y, v1z, v1x, v1x) - "ld1 {v1.s}[1], [%3] \n\t" // - "ld1 {v1.s}[2], [%4], 4 \n\t" // - "ld1 {v1.s}[3], [%4] \n\t" // - "mov v1.s[0], v1.s[3] \n\t" // q1 = (v2z, v2x, v2y, v2z) + "ld1 {v1.4s}, [%3] \n\t" + "mov v1.s[3], v1.s[0] \n\t" // q1 = (v2x, v2y, v2z, v2x) "fmul v2.4s, v0.4s, v1.4s \n\t" // x = v1y * v2z, y = v1z * v2x - "fsub s8, s8, s10 \n\t" - "fsub s9, s9, s11 \n\t" // x -= v1z * v2y, y-= v1x - v2z - "fmul s10, s3, s6 \n\t" // z = v1x * v2y - "fmul s11, s0, s5 \n\t" // z-= v1y * vx - "fsub s10, s10, s11 \n\t" + + "mov v0.s[0], v0.s[1] \n\t" + "mov v0.s[1], v0.s[2] \n\t" + "mov v0.s[2], v0.s[3] \n\t" + + "mov v1.s[3], v1.s[2] \n\t" + + "fmul v0.4s, v0.4s, v1.4s \n\t" + + "mov v0.s[3], v0.s[1] \n\t" + "mov v0.s[1], v0.s[2] \n\t" + "mov v0.s[2], v0.s[0] \n\t" + + "fsub v2.4s, v0.4s, v2.4s \n\t" + + "mov v2.s[0], v2.s[1] \n\t" + "mov v2.s[1], v2.s[2] \n\t" + "mov v2.s[2], v2.s[3] \n\t" "st1 {v2.2s}, [%0], 8 \n\t" // V[x, y] "st1 {v2.s}[2], [%0] \n\t" // V[z]