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authorMåns Rullgård <mans@mansr.com>2009-12-02 14:56:45 +0000
committerMåns Rullgård <mans@mansr.com>2009-12-02 14:56:45 +0000
commit702b5885a1eeb0121db004471909460c2f69528f (patch)
tree144b8ca89fa7c5a71d5b50af24e3ac32525e2b1a /libavcodec/arm/h264pred_neon.S
parent9e69ab1864dc40e10c764b7d485a09ff5027f727 (diff)
downloadffmpeg-702b5885a1eeb0121db004471909460c2f69528f.tar.gz
ARM: NEON optimised H264 16x16, 8x8 pred
Originally committed as revision 20704 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/h264pred_neon.S')
-rw-r--r--libavcodec/arm/h264pred_neon.S362
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diff --git a/libavcodec/arm/h264pred_neon.S b/libavcodec/arm/h264pred_neon.S
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+/*
+ * Copyright (c) 2009 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 "asm.S"
+
+ .macro ldcol.8 rd, rs, rt, n=8, hi=0
+.if \n == 8 || \hi == 0
+ vld1.8 {\rd[0]}, [\rs], \rt
+ vld1.8 {\rd[1]}, [\rs], \rt
+ vld1.8 {\rd[2]}, [\rs], \rt
+ vld1.8 {\rd[3]}, [\rs], \rt
+.endif
+.if \n == 8 || \hi == 1
+ vld1.8 {\rd[4]}, [\rs], \rt
+ vld1.8 {\rd[5]}, [\rs], \rt
+ vld1.8 {\rd[6]}, [\rs], \rt
+ vld1.8 {\rd[7]}, [\rs], \rt
+.endif
+ .endm
+
+ .macro add16x8 dq, dl, dh, rl, rh
+ vaddl.u8 \dq, \rl, \rh
+ vadd.u16 \dl, \dl, \dh
+ vpadd.u16 \dl, \dl, \dl
+ vpadd.u16 \dl, \dl, \dl
+ .endm
+
+function ff_pred16x16_128_dc_neon, export=1
+ vmov.i8 q0, #128
+ b .L_pred16x16_dc_end
+ .endfunc
+
+function ff_pred16x16_top_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {q0}, [r2,:128]
+ add16x8 q0, d0, d1, d0, d1
+ vrshrn.u16 d0, q0, #4
+ vdup.8 q0, d0[0]
+ b .L_pred16x16_dc_end
+ .endfunc
+
+function ff_pred16x16_left_dc_neon, export=1
+ sub r2, r0, #1
+ ldcol.8 d0, r2, r1
+ ldcol.8 d1, r2, r1
+ add16x8 q0, d0, d1, d0, d1
+ vrshrn.u16 d0, q0, #4
+ vdup.8 q0, d0[0]
+ b .L_pred16x16_dc_end
+ .endfunc
+
+function ff_pred16x16_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {q0}, [r2,:128]
+ sub r2, r0, #1
+ ldcol.8 d2, r2, r1
+ ldcol.8 d3, r2, r1
+ vaddl.u8 q0, d0, d1
+ vaddl.u8 q1, d2, d3
+ vadd.u16 q0, q0, q1
+ vadd.u16 d0, d0, d1
+ vpadd.u16 d0, d0, d0
+ vpadd.u16 d0, d0, d0
+ vrshrn.u16 d0, q0, #5
+ vdup.8 q0, d0[0]
+.L_pred16x16_dc_end:
+ mov r3, #8
+6: vst1.8 {q0}, [r0,:128], r1
+ vst1.8 {q0}, [r0,:128], r1
+ subs r3, r3, #1
+ bne 6b
+ bx lr
+ .endfunc
+
+function ff_pred16x16_hor_neon, export=1
+ sub r2, r0, #1
+ mov r3, #16
+1: vld1.8 {d0[],d1[]},[r2], r1
+ vst1.8 {q0}, [r0,:128], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+function ff_pred16x16_vert_neon, export=1
+ sub r0, r0, r1
+ vld1.8 {q0}, [r0,:128], r1
+ mov r3, #8
+1: vst1.8 {q0}, [r0,:128], r1
+ vst1.8 {q0}, [r0,:128], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+function ff_pred16x16_plane_neon, export=1
+ sub r3, r0, r1
+ add r2, r3, #8
+ sub r3, r3, #1
+ vld1.8 {d0}, [r3]
+ vld1.8 {d2}, [r2,:64], r1
+ ldcol.8 d1, r3, r1
+ add r3, r3, r1
+ ldcol.8 d3, r3, r1
+ vrev64.8 q0, q0
+ vaddl.u8 q8, d2, d3
+ vsubl.u8 q2, d2, d0
+ vsubl.u8 q3, d3, d1
+ movrel r3, p16weight
+ vld1.8 {q0}, [r3,:128]
+ vmul.s16 q2, q2, q0
+ vmul.s16 q3, q3, q0
+ vadd.i16 d4, d4, d5
+ vadd.i16 d5, d6, d7
+ vpadd.i16 d4, d4, d5
+ vpadd.i16 d4, d4, d4
+ vshl.i16 d5, d4, #2
+ vaddl.s16 q2, d4, d5
+ vrshrn.s32 d4, q2, #6
+ mov r3, #0
+ vtrn.16 d4, d5
+ vadd.i16 d2, d4, d5
+ vshl.i16 d3, d2, #3
+ vrev64.16 d16, d17
+ vsub.i16 d3, d3, d2
+ vadd.i16 d16, d16, d0
+ vshl.i16 d2, d16, #4
+ vsub.i16 d2, d2, d3
+ vshl.i16 d3, d4, #4
+ vext.16 q0, q0, q0, #7
+ vsub.i16 d6, d5, d3
+ vmov.16 d0[0], r3
+ vmul.i16 q0, q0, d4[0]
+ vdup.16 q1, d2[0]
+ vdup.16 q2, d4[0]
+ vdup.16 q3, d6[0]
+ vshl.i16 q2, q2, #3
+ vadd.i16 q1, q1, q0
+ vadd.i16 q3, q3, q2
+ mov r3, #16
+1:
+ vqshrun.s16 d0, q1, #5
+ vadd.i16 q1, q1, q2
+ vqshrun.s16 d1, q1, #5
+ vadd.i16 q1, q1, q3
+ vst1.8 {q0}, [r0,:128], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+ .section .rodata
+ .align 4
+p16weight:
+ .short 1,2,3,4,5,6,7,8
+
+ .text
+
+function ff_pred8x8_hor_neon, export=1
+ sub r2, r0, #1
+ mov r3, #8
+1: vld1.8 {d0[]}, [r2], r1
+ vst1.8 {d0}, [r0,:64], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+function ff_pred8x8_vert_neon, export=1
+ sub r0, r0, r1
+ vld1.8 {d0}, [r0,:64], r1
+ mov r3, #4
+1: vst1.8 {d0}, [r0,:64], r1
+ vst1.8 {d0}, [r0,:64], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+function ff_pred8x8_plane_neon, export=1
+ sub r3, r0, r1
+ add r2, r3, #4
+ sub r3, r3, #1
+ vld1.32 {d0[0]}, [r3]
+ vld1.32 {d2[0]}, [r2,:32], r1
+ ldcol.8 d0, r3, r1, 4, hi=1
+ add r3, r3, r1
+ ldcol.8 d3, r3, r1, 4
+ vaddl.u8 q8, d2, d3
+ vrev32.8 d0, d0
+ vtrn.32 d2, d3
+ vsubl.u8 q2, d2, d0
+ movrel r3, p16weight
+ vld1.16 {q0}, [r3,:128]
+ vmul.s16 d4, d4, d0
+ vmul.s16 d5, d5, d0
+ vpadd.i16 d4, d4, d5
+ vpaddl.s16 d4, d4
+ vshl.i32 d5, d4, #4
+ vadd.s32 d4, d4, d5
+ vrshrn.s32 d4, q2, #5
+ mov r3, #0
+ vtrn.16 d4, d5
+ vadd.i16 d2, d4, d5
+ vshl.i16 d3, d2, #2
+ vrev64.16 d16, d16
+ vsub.i16 d3, d3, d2
+ vadd.i16 d16, d16, d0
+ vshl.i16 d2, d16, #4
+ vsub.i16 d2, d2, d3
+ vshl.i16 d3, d4, #3
+ vext.16 q0, q0, q0, #7
+ vsub.i16 d6, d5, d3
+ vmov.16 d0[0], r3
+ vmul.i16 q0, q0, d4[0]
+ vdup.16 q1, d2[0]
+ vdup.16 q2, d4[0]
+ vdup.16 q3, d6[0]
+ vshl.i16 q2, q2, #3
+ vadd.i16 q1, q1, q0
+ vadd.i16 q3, q3, q2
+ mov r3, #8
+1:
+ vqshrun.s16 d0, q1, #5
+ vadd.i16 q1, q1, q3
+ vst1.8 {d0}, [r0,:64], r1
+ subs r3, r3, #1
+ bne 1b
+ bx lr
+ .endfunc
+
+function ff_pred8x8_128_dc_neon, export=1
+ vmov.i8 q0, #128
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_top_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {d0}, [r2,:64]
+ vpaddl.u8 d0, d0
+ vpadd.u16 d0, d0, d0
+ vrshrn.u16 d0, q0, #2
+ vdup.8 d1, d0[1]
+ vdup.8 d0, d0[0]
+ vtrn.32 d0, d1
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_left_dc_neon, export=1
+ sub r2, r0, #1
+ ldcol.8 d0, r2, r1
+ vpaddl.u8 d0, d0
+ vpadd.u16 d0, d0, d0
+ vrshrn.u16 d0, q0, #2
+ vdup.8 d1, d0[1]
+ vdup.8 d0, d0[0]
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {d0}, [r2,:64]
+ sub r2, r0, #1
+ ldcol.8 d1, r2, r1
+ vtrn.32 d0, d1
+ vpaddl.u8 q0, q0
+ vpadd.u16 d0, d0, d1
+ vpadd.u16 d1, d0, d0
+ vrshrn.u16 d2, q0, #3
+ vrshrn.u16 d3, q0, #2
+ vdup.8 d0, d2[4]
+ vdup.8 d1, d3[3]
+ vdup.8 d4, d3[2]
+ vdup.8 d5, d2[5]
+ vtrn.32 q0, q2
+.L_pred8x8_dc_end:
+ mov r3, #4
+ add r2, r0, r1, lsl #2
+6: vst1.8 {d0}, [r0,:64], r1
+ vst1.8 {d1}, [r2,:64], r1
+ subs r3, r3, #1
+ bne 6b
+ bx lr
+ .endfunc
+
+function ff_pred8x8_l0t_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {d0}, [r2,:64]
+ sub r2, r0, #1
+ ldcol.8 d1, r2, r1, 4
+ vtrn.32 d0, d1
+ vpaddl.u8 q0, q0
+ vpadd.u16 d0, d0, d1
+ vpadd.u16 d1, d0, d0
+ vrshrn.u16 d2, q0, #3
+ vrshrn.u16 d3, q0, #2
+ vdup.8 d0, d2[4]
+ vdup.8 d1, d3[0]
+ vdup.8 q2, d3[2]
+ vtrn.32 q0, q2
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_l00_dc_neon, export=1
+ sub r2, r0, #1
+ ldcol.8 d0, r2, r1, 4
+ vpaddl.u8 d0, d0
+ vpadd.u16 d0, d0, d0
+ vrshrn.u16 d0, q0, #2
+ vmov.i8 d1, #128
+ vdup.8 d0, d0[0]
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_0lt_dc_neon, export=1
+ sub r2, r0, r1
+ vld1.8 {d0}, [r2,:64]
+ add r2, r0, r1, lsl #2
+ sub r2, r2, #1
+ ldcol.8 d1, r2, r1, 4, hi=1
+ vtrn.32 d0, d1
+ vpaddl.u8 q0, q0
+ vpadd.u16 d0, d0, d1
+ vpadd.u16 d1, d0, d0
+ vrshrn.u16 d3, q0, #2
+ vrshrn.u16 d2, q0, #3
+ vdup.8 d0, d3[0]
+ vdup.8 d1, d3[3]
+ vdup.8 d4, d3[2]
+ vdup.8 d5, d2[5]
+ vtrn.32 q0, q2
+ b .L_pred8x8_dc_end
+ .endfunc
+
+function ff_pred8x8_0l0_dc_neon, export=1
+ add r2, r0, r1, lsl #2
+ sub r2, r2, #1
+ ldcol.8 d1, r2, r1, 4
+ vpaddl.u8 d2, d1
+ vpadd.u16 d2, d2, d2
+ vrshrn.u16 d1, q1, #2
+ vmov.i8 d0, #128
+ vdup.8 d1, d1[0]
+ b .L_pred8x8_dc_end
+ .endfunc