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-rw-r--r--media/ffvpx/libavutil/arm/float_dsp_neon.S271
1 files changed, 271 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/arm/float_dsp_neon.S b/media/ffvpx/libavutil/arm/float_dsp_neon.S
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+/*
+ * ARM NEON optimised Float DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "asm.S"
+
+function ff_vector_fmul_neon, export=1
+ subs r3, r3, #8
+ vld1.32 {d0-d3}, [r1,:128]!
+ vld1.32 {d4-d7}, [r2,:128]!
+ vmul.f32 q8, q0, q2
+ vmul.f32 q9, q1, q3
+ beq 3f
+ bics ip, r3, #15
+ beq 2f
+1: subs ip, ip, #16
+ vld1.32 {d0-d1}, [r1,:128]!
+ vld1.32 {d4-d5}, [r2,:128]!
+ vmul.f32 q10, q0, q2
+ vld1.32 {d2-d3}, [r1,:128]!
+ vld1.32 {d6-d7}, [r2,:128]!
+ vmul.f32 q11, q1, q3
+ vst1.32 {d16-d19},[r0,:128]!
+ vld1.32 {d0-d1}, [r1,:128]!
+ vld1.32 {d4-d5}, [r2,:128]!
+ vmul.f32 q8, q0, q2
+ vld1.32 {d2-d3}, [r1,:128]!
+ vld1.32 {d6-d7}, [r2,:128]!
+ vmul.f32 q9, q1, q3
+ vst1.32 {d20-d23},[r0,:128]!
+ bne 1b
+ ands r3, r3, #15
+ beq 3f
+2: vld1.32 {d0-d1}, [r1,:128]!
+ vld1.32 {d4-d5}, [r2,:128]!
+ vst1.32 {d16-d17},[r0,:128]!
+ vmul.f32 q8, q0, q2
+ vld1.32 {d2-d3}, [r1,:128]!
+ vld1.32 {d6-d7}, [r2,:128]!
+ vst1.32 {d18-d19},[r0,:128]!
+ vmul.f32 q9, q1, q3
+3: vst1.32 {d16-d19},[r0,:128]!
+ bx lr
+endfunc
+
+function ff_vector_fmac_scalar_neon, export=1
+VFP len .req r2
+VFP acc .req r3
+NOVFP len .req r3
+NOVFP acc .req r2
+VFP vdup.32 q15, d0[0]
+NOVFP vdup.32 q15, r2
+ bics r12, len, #15
+ mov acc, r0
+ beq 3f
+ vld1.32 {q0}, [r1,:128]!
+ vld1.32 {q8}, [acc,:128]!
+ vld1.32 {q1}, [r1,:128]!
+ vld1.32 {q9}, [acc,:128]!
+1: vmla.f32 q8, q0, q15
+ vld1.32 {q2}, [r1,:128]!
+ vld1.32 {q10}, [acc,:128]!
+ vmla.f32 q9, q1, q15
+ vld1.32 {q3}, [r1,:128]!
+ vld1.32 {q11}, [acc,:128]!
+ vmla.f32 q10, q2, q15
+ vst1.32 {q8}, [r0,:128]!
+ vmla.f32 q11, q3, q15
+ vst1.32 {q9}, [r0,:128]!
+ subs r12, r12, #16
+ beq 2f
+ vld1.32 {q0}, [r1,:128]!
+ vld1.32 {q8}, [acc,:128]!
+ vst1.32 {q10}, [r0,:128]!
+ vld1.32 {q1}, [r1,:128]!
+ vld1.32 {q9}, [acc,:128]!
+ vst1.32 {q11}, [r0,:128]!
+ b 1b
+2: vst1.32 {q10}, [r0,:128]!
+ vst1.32 {q11}, [r0,:128]!
+ ands len, len, #15
+ it eq
+ bxeq lr
+3: vld1.32 {q0}, [r1,:128]!
+ vld1.32 {q8}, [acc,:128]!
+ vmla.f32 q8, q0, q15
+ vst1.32 {q8}, [r0,:128]!
+ subs len, len, #4
+ bgt 3b
+ bx lr
+ .unreq len
+endfunc
+
+function ff_vector_fmul_scalar_neon, export=1
+VFP len .req r2
+NOVFP len .req r3
+VFP vdup.32 q8, d0[0]
+NOVFP vdup.32 q8, r2
+ bics r12, len, #15
+ beq 3f
+ vld1.32 {q0},[r1,:128]!
+ vld1.32 {q1},[r1,:128]!
+1: vmul.f32 q0, q0, q8
+ vld1.32 {q2},[r1,:128]!
+ vmul.f32 q1, q1, q8
+ vld1.32 {q3},[r1,:128]!
+ vmul.f32 q2, q2, q8
+ vst1.32 {q0},[r0,:128]!
+ vmul.f32 q3, q3, q8
+ vst1.32 {q1},[r0,:128]!
+ subs r12, r12, #16
+ beq 2f
+ vld1.32 {q0},[r1,:128]!
+ vst1.32 {q2},[r0,:128]!
+ vld1.32 {q1},[r1,:128]!
+ vst1.32 {q3},[r0,:128]!
+ b 1b
+2: vst1.32 {q2},[r0,:128]!
+ vst1.32 {q3},[r0,:128]!
+ ands len, len, #15
+ it eq
+ bxeq lr
+3: vld1.32 {q0},[r1,:128]!
+ vmul.f32 q0, q0, q8
+ vst1.32 {q0},[r0,:128]!
+ subs len, len, #4
+ bgt 3b
+ bx lr
+ .unreq len
+endfunc
+
+function ff_vector_fmul_window_neon, export=1
+ push {r4,r5,lr}
+ ldr lr, [sp, #12]
+ sub r2, r2, #8
+ sub r5, lr, #2
+ add r2, r2, r5, lsl #2
+ add r4, r3, r5, lsl #3
+ add ip, r0, r5, lsl #3
+ mov r5, #-16
+ vld1.32 {d0,d1}, [r1,:128]!
+ vld1.32 {d2,d3}, [r2,:128], r5
+ vld1.32 {d4,d5}, [r3,:128]!
+ vld1.32 {d6,d7}, [r4,:128], r5
+1: subs lr, lr, #4
+ vmul.f32 d22, d0, d4
+ vrev64.32 q3, q3
+ vmul.f32 d23, d1, d5
+ vrev64.32 q1, q1
+ vmul.f32 d20, d0, d7
+ vmul.f32 d21, d1, d6
+ beq 2f
+ vmla.f32 d22, d3, d7
+ vld1.32 {d0,d1}, [r1,:128]!
+ vmla.f32 d23, d2, d6
+ vld1.32 {d18,d19},[r2,:128], r5
+ vmls.f32 d20, d3, d4
+ vld1.32 {d24,d25},[r3,:128]!
+ vmls.f32 d21, d2, d5
+ vld1.32 {d6,d7}, [r4,:128], r5
+ vmov q1, q9
+ vrev64.32 q11, q11
+ vmov q2, q12
+ vswp d22, d23
+ vst1.32 {d20,d21},[r0,:128]!
+ vst1.32 {d22,d23},[ip,:128], r5
+ b 1b
+2: vmla.f32 d22, d3, d7
+ vmla.f32 d23, d2, d6
+ vmls.f32 d20, d3, d4
+ vmls.f32 d21, d2, d5
+ vrev64.32 q11, q11
+ vswp d22, d23
+ vst1.32 {d20,d21},[r0,:128]!
+ vst1.32 {d22,d23},[ip,:128], r5
+ pop {r4,r5,pc}
+endfunc
+
+function ff_vector_fmul_add_neon, export=1
+ ldr r12, [sp]
+ vld1.32 {q0-q1}, [r1,:128]!
+ vld1.32 {q8-q9}, [r2,:128]!
+ vld1.32 {q2-q3}, [r3,:128]!
+ vmul.f32 q10, q0, q8
+ vmul.f32 q11, q1, q9
+1: vadd.f32 q12, q2, q10
+ vadd.f32 q13, q3, q11
+ pld [r1, #16]
+ pld [r2, #16]
+ pld [r3, #16]
+ subs r12, r12, #8
+ beq 2f
+ vld1.32 {q0}, [r1,:128]!
+ vld1.32 {q8}, [r2,:128]!
+ vmul.f32 q10, q0, q8
+ vld1.32 {q1}, [r1,:128]!
+ vld1.32 {q9}, [r2,:128]!
+ vmul.f32 q11, q1, q9
+ vld1.32 {q2-q3}, [r3,:128]!
+ vst1.32 {q12-q13},[r0,:128]!
+ b 1b
+2: vst1.32 {q12-q13},[r0,:128]!
+ bx lr
+endfunc
+
+function ff_vector_fmul_reverse_neon, export=1
+ add r2, r2, r3, lsl #2
+ sub r2, r2, #32
+ mov r12, #-32
+ vld1.32 {q0-q1}, [r1,:128]!
+ vld1.32 {q2-q3}, [r2,:128], r12
+1: pld [r1, #32]
+ vrev64.32 q3, q3
+ vmul.f32 d16, d0, d7
+ vmul.f32 d17, d1, d6
+ pld [r2, #-32]
+ vrev64.32 q2, q2
+ vmul.f32 d18, d2, d5
+ vmul.f32 d19, d3, d4
+ subs r3, r3, #8
+ beq 2f
+ vld1.32 {q0-q1}, [r1,:128]!
+ vld1.32 {q2-q3}, [r2,:128], r12
+ vst1.32 {q8-q9}, [r0,:128]!
+ b 1b
+2: vst1.32 {q8-q9}, [r0,:128]!
+ bx lr
+endfunc
+
+function ff_butterflies_float_neon, export=1
+1: vld1.32 {q0},[r0,:128]
+ vld1.32 {q1},[r1,:128]
+ vsub.f32 q2, q0, q1
+ vadd.f32 q1, q0, q1
+ vst1.32 {q2},[r1,:128]!
+ vst1.32 {q1},[r0,:128]!
+ subs r2, r2, #4
+ bgt 1b
+ bx lr
+endfunc
+
+function ff_scalarproduct_float_neon, export=1
+ vmov.f32 q2, #0.0
+1: vld1.32 {q0},[r0,:128]!
+ vld1.32 {q1},[r1,:128]!
+ vmla.f32 q2, q0, q1
+ subs r2, r2, #4
+ bgt 1b
+ vadd.f32 d0, d4, d5
+ vpadd.f32 d0, d0, d0
+NOVFP vmov.32 r0, d0[0]
+ bx lr
+endfunc
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