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58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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#ifndef cglm_mat4_neon_h
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#define cglm_mat4_neon_h
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#if defined(__ARM_NEON_FP)
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#include "../../../cglm-common.h"
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#include <arm_neon.h>
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CGLM_INLINE
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void
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glm_mat4_mul_neon(mat4 m1, mat4 m2, mat4 dest) {
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/* D = R * L (Column-Major) */
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float32x4_t l0, l1, l2, l3, r, d0, d1, d2, d3;
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l0 = vld1q_f32(m2[0]);
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l1 = vld1q_f32(m2[1]);
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l2 = vld1q_f32(m2[2]);
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l3 = vld1q_f32(m2[3]);
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r = vld1q_f32(m1[0]);
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d0 = vmulq_lane_f32(r, vget_low_f32(l0), 0);
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d1 = vmulq_lane_f32(r, vget_low_f32(l1), 0);
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d2 = vmulq_lane_f32(r, vget_low_f32(l2), 0);
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d3 = vmulq_lane_f32(r, vget_low_f32(l3), 0);
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r = vld1q_f32(m1[1]);
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d0 = vmlaq_lane_f32(d0, r, vget_low_f32(l0), 1);
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d1 = vmlaq_lane_f32(d1, r, vget_low_f32(l1), 1);
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d2 = vmlaq_lane_f32(d2, r, vget_low_f32(l2), 1);
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d3 = vmlaq_lane_f32(d3, r, vget_low_f32(l3), 1);
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r = vld1q_f32(m1[2]);
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d0 = vmlaq_lane_f32(d0, r, vget_high_f32(l0), 0);
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d1 = vmlaq_lane_f32(d1, r, vget_high_f32(l1), 0);
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d2 = vmlaq_lane_f32(d2, r, vget_high_f32(l2), 0);
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d3 = vmlaq_lane_f32(d3, r, vget_high_f32(l3), 0);
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r = vld1q_f32(m1[3]);
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d0 = vmlaq_lane_f32(d0, r, vget_high_f32(l0), 1);
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d1 = vmlaq_lane_f32(d1, r, vget_high_f32(l1), 1);
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d2 = vmlaq_lane_f32(d2, r, vget_high_f32(l2), 1);
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d3 = vmlaq_lane_f32(d3, r, vget_high_f32(l3), 1);
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vst1q_f32(dest[0], d0);
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vst1q_f32(dest[1], d1);
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vst1q_f32(dest[2], d2);
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vst1q_f32(dest[3], d3);
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}
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#endif
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#endif /* cglm_mat4_neon_h */
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