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- /*
- * ARM NEON optimised DSP functions
- * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- #include "libavutil/arm/asm.S"
-
- function ff_clear_block_neon, export=1
- vmov.i16 q0, #0
- .rept 8
- vst1.16 {q0}, [r0,:128]!
- .endr
- bx lr
- endfunc
-
- function ff_clear_blocks_neon, export=1
- vmov.i16 q0, #0
- .rept 8*6
- vst1.16 {q0}, [r0,:128]!
- .endr
- bx lr
- endfunc
-
- function ff_put_pixels_clamped_neon, export=1
- vld1.16 {d16-d19}, [r0,:128]!
- vqmovun.s16 d0, q8
- vld1.16 {d20-d23}, [r0,:128]!
- vqmovun.s16 d1, q9
- vld1.16 {d24-d27}, [r0,:128]!
- vqmovun.s16 d2, q10
- vld1.16 {d28-d31}, [r0,:128]!
- vqmovun.s16 d3, q11
- vst1.8 {d0}, [r1,:64], r2
- vqmovun.s16 d4, q12
- vst1.8 {d1}, [r1,:64], r2
- vqmovun.s16 d5, q13
- vst1.8 {d2}, [r1,:64], r2
- vqmovun.s16 d6, q14
- vst1.8 {d3}, [r1,:64], r2
- vqmovun.s16 d7, q15
- vst1.8 {d4}, [r1,:64], r2
- vst1.8 {d5}, [r1,:64], r2
- vst1.8 {d6}, [r1,:64], r2
- vst1.8 {d7}, [r1,:64], r2
- bx lr
- endfunc
-
- function ff_put_signed_pixels_clamped_neon, export=1
- vmov.u8 d31, #128
- vld1.16 {d16-d17}, [r0,:128]!
- vqmovn.s16 d0, q8
- vld1.16 {d18-d19}, [r0,:128]!
- vqmovn.s16 d1, q9
- vld1.16 {d16-d17}, [r0,:128]!
- vqmovn.s16 d2, q8
- vld1.16 {d18-d19}, [r0,:128]!
- vadd.u8 d0, d0, d31
- vld1.16 {d20-d21}, [r0,:128]!
- vadd.u8 d1, d1, d31
- vld1.16 {d22-d23}, [r0,:128]!
- vadd.u8 d2, d2, d31
- vst1.8 {d0}, [r1,:64], r2
- vqmovn.s16 d3, q9
- vst1.8 {d1}, [r1,:64], r2
- vqmovn.s16 d4, q10
- vst1.8 {d2}, [r1,:64], r2
- vqmovn.s16 d5, q11
- vld1.16 {d24-d25}, [r0,:128]!
- vadd.u8 d3, d3, d31
- vld1.16 {d26-d27}, [r0,:128]!
- vadd.u8 d4, d4, d31
- vadd.u8 d5, d5, d31
- vst1.8 {d3}, [r1,:64], r2
- vqmovn.s16 d6, q12
- vst1.8 {d4}, [r1,:64], r2
- vqmovn.s16 d7, q13
- vst1.8 {d5}, [r1,:64], r2
- vadd.u8 d6, d6, d31
- vadd.u8 d7, d7, d31
- vst1.8 {d6}, [r1,:64], r2
- vst1.8 {d7}, [r1,:64], r2
- bx lr
- endfunc
-
- function ff_add_pixels_clamped_neon, export=1
- mov r3, r1
- vld1.8 {d16}, [r1,:64], r2
- vld1.16 {d0-d1}, [r0,:128]!
- vaddw.u8 q0, q0, d16
- vld1.8 {d17}, [r1,:64], r2
- vld1.16 {d2-d3}, [r0,:128]!
- vqmovun.s16 d0, q0
- vld1.8 {d18}, [r1,:64], r2
- vaddw.u8 q1, q1, d17
- vld1.16 {d4-d5}, [r0,:128]!
- vaddw.u8 q2, q2, d18
- vst1.8 {d0}, [r3,:64], r2
- vqmovun.s16 d2, q1
- vld1.8 {d19}, [r1,:64], r2
- vld1.16 {d6-d7}, [r0,:128]!
- vaddw.u8 q3, q3, d19
- vqmovun.s16 d4, q2
- vst1.8 {d2}, [r3,:64], r2
- vld1.8 {d16}, [r1,:64], r2
- vqmovun.s16 d6, q3
- vld1.16 {d0-d1}, [r0,:128]!
- vaddw.u8 q0, q0, d16
- vst1.8 {d4}, [r3,:64], r2
- vld1.8 {d17}, [r1,:64], r2
- vld1.16 {d2-d3}, [r0,:128]!
- vaddw.u8 q1, q1, d17
- vst1.8 {d6}, [r3,:64], r2
- vqmovun.s16 d0, q0
- vld1.8 {d18}, [r1,:64], r2
- vld1.16 {d4-d5}, [r0,:128]!
- vaddw.u8 q2, q2, d18
- vst1.8 {d0}, [r3,:64], r2
- vqmovun.s16 d2, q1
- vld1.8 {d19}, [r1,:64], r2
- vqmovun.s16 d4, q2
- vld1.16 {d6-d7}, [r0,:128]!
- vaddw.u8 q3, q3, d19
- vst1.8 {d2}, [r3,:64], r2
- vqmovun.s16 d6, q3
- vst1.8 {d4}, [r3,:64], r2
- vst1.8 {d6}, [r3,:64], r2
- bx lr
- endfunc
-
- function ff_vector_clipf_neon, export=1
- VFP vdup.32 q1, d0[1]
- VFP vdup.32 q0, d0[0]
- NOVFP vdup.32 q0, r2
- NOVFP vdup.32 q1, r3
- NOVFP ldr r2, [sp]
- vld1.f32 {q2},[r1,:128]!
- vmin.f32 q10, q2, q1
- vld1.f32 {q3},[r1,:128]!
- vmin.f32 q11, q3, q1
- 1: vmax.f32 q8, q10, q0
- vmax.f32 q9, q11, q0
- subs r2, r2, #8
- beq 2f
- vld1.f32 {q2},[r1,:128]!
- vmin.f32 q10, q2, q1
- vld1.f32 {q3},[r1,:128]!
- vmin.f32 q11, q3, q1
- vst1.f32 {q8},[r0,:128]!
- vst1.f32 {q9},[r0,:128]!
- b 1b
- 2: vst1.f32 {q8},[r0,:128]!
- vst1.f32 {q9},[r0,:128]!
- bx lr
- endfunc
-
- function ff_apply_window_int16_neon, export=1
- push {r4,lr}
- add r4, r1, r3, lsl #1
- add lr, r0, r3, lsl #1
- sub r4, r4, #16
- sub lr, lr, #16
- mov r12, #-16
- 1:
- vld1.16 {q0}, [r1,:128]!
- vld1.16 {q2}, [r2,:128]!
- vld1.16 {q1}, [r4,:128], r12
- vrev64.16 q3, q2
- vqrdmulh.s16 q0, q0, q2
- vqrdmulh.s16 d2, d2, d7
- vqrdmulh.s16 d3, d3, d6
- vst1.16 {q0}, [r0,:128]!
- vst1.16 {q1}, [lr,:128], r12
- subs r3, r3, #16
- bgt 1b
-
- pop {r4,pc}
- endfunc
-
- function ff_vector_clip_int32_neon, export=1
- vdup.32 q0, r2
- vdup.32 q1, r3
- ldr r2, [sp]
- 1:
- vld1.32 {q2-q3}, [r1,:128]!
- vmin.s32 q2, q2, q1
- vmin.s32 q3, q3, q1
- vmax.s32 q2, q2, q0
- vmax.s32 q3, q3, q0
- vst1.32 {q2-q3}, [r0,:128]!
- subs r2, r2, #8
- bgt 1b
- bx lr
- endfunc
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