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- /*
- * ARM-NEON-optimized IDCT 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_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
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