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Diffstat (limited to 'libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm')
| -rw-r--r-- | libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm b/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm new file mode 100644 index 0000000..e690df2 --- /dev/null +++ b/libvpx/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm @@ -0,0 +1,154 @@ +; +; Copyright (c) 2010 The WebM project authors. All Rights Reserved. +; +; Use of this source code is governed by a BSD-style license +; that can be found in the LICENSE file in the root of the source +; tree. An additional intellectual property rights grant can be found +; in the file PATENTS. All contributing project authors may +; be found in the AUTHORS file in the root of the source tree. +; + + + ;EXPORT |vp8_loop_filter_simple_vertical_edge_neon| + EXPORT |vp8_loop_filter_bvs_neon| + EXPORT |vp8_loop_filter_mbvs_neon| + ARM + PRESERVE8 + + AREA ||.text||, CODE, READONLY, ALIGN=2 + +; r0 unsigned char *s, PRESERVE +; r1 int p, PRESERVE +; q1 limit, PRESERVE + +|vp8_loop_filter_simple_vertical_edge_neon| PROC + sub r0, r0, #2 ; move src pointer down by 2 columns + add r12, r1, r1 + add r3, r0, r1 + + vld4.8 {d6[0], d7[0], d8[0], d9[0]}, [r0], r12 + vld4.8 {d6[1], d7[1], d8[1], d9[1]}, [r3], r12 + vld4.8 {d6[2], d7[2], d8[2], d9[2]}, [r0], r12 + vld4.8 {d6[3], d7[3], d8[3], d9[3]}, [r3], r12 + vld4.8 {d6[4], d7[4], d8[4], d9[4]}, [r0], r12 + vld4.8 {d6[5], d7[5], d8[5], d9[5]}, [r3], r12 + vld4.8 {d6[6], d7[6], d8[6], d9[6]}, [r0], r12 + vld4.8 {d6[7], d7[7], d8[7], d9[7]}, [r3], r12 + + vld4.8 {d10[0], d11[0], d12[0], d13[0]}, [r0], r12 + vld4.8 {d10[1], d11[1], d12[1], d13[1]}, [r3], r12 + vld4.8 {d10[2], d11[2], d12[2], d13[2]}, [r0], r12 + vld4.8 {d10[3], d11[3], d12[3], d13[3]}, [r3], r12 + vld4.8 {d10[4], d11[4], d12[4], d13[4]}, [r0], r12 + vld4.8 {d10[5], d11[5], d12[5], d13[5]}, [r3], r12 + vld4.8 {d10[6], d11[6], d12[6], d13[6]}, [r0], r12 + vld4.8 {d10[7], d11[7], d12[7], d13[7]}, [r3] + + vswp d7, d10 + vswp d12, d9 + + ;vp8_filter_mask() function + ;vp8_hevmask() function + sub r0, r0, r1, lsl #4 + vabd.u8 q15, q5, q4 ; abs(p0 - q0) + vabd.u8 q14, q3, q6 ; abs(p1 - q1) + + vqadd.u8 q15, q15, q15 ; abs(p0 - q0) * 2 + vshr.u8 q14, q14, #1 ; abs(p1 - q1) / 2 + vmov.u8 q0, #0x80 ; 0x80 + vmov.s16 q11, #3 + vqadd.u8 q15, q15, q14 ; abs(p0 - q0) * 2 + abs(p1 - q1) / 2 + + veor q4, q4, q0 ; qs0: q0 offset to convert to a signed value + veor q5, q5, q0 ; ps0: p0 offset to convert to a signed value + veor q3, q3, q0 ; ps1: p1 offset to convert to a signed value + veor q6, q6, q0 ; qs1: q1 offset to convert to a signed value + + vcge.u8 q15, q1, q15 ; abs(p0 - q0)*2 + abs(p1-q1)/2 > flimit*2 + limit)*-1 + + vsubl.s8 q2, d8, d10 ; ( qs0 - ps0) + vsubl.s8 q13, d9, d11 + + vqsub.s8 q14, q3, q6 ; vp8_filter = vp8_signed_char_clamp(ps1-qs1) + + vmul.s16 q2, q2, q11 ; 3 * ( qs0 - ps0) + vmul.s16 q13, q13, q11 + + vmov.u8 q11, #0x03 ; 0x03 + vmov.u8 q12, #0x04 ; 0x04 + + vaddw.s8 q2, q2, d28 ; vp8_filter + 3 * ( qs0 - ps0) + vaddw.s8 q13, q13, d29 + + vqmovn.s16 d28, q2 ; vp8_filter = vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0)) + vqmovn.s16 d29, q13 + + add r0, r0, #1 + add r3, r0, r1 + + vand q14, q14, q15 ; vp8_filter &= mask + + vqadd.s8 q2, q14, q11 ; Filter2 = vp8_signed_char_clamp(vp8_filter+3) + vqadd.s8 q3, q14, q12 ; Filter1 = vp8_signed_char_clamp(vp8_filter+4) + vshr.s8 q2, q2, #3 ; Filter2 >>= 3 + vshr.s8 q14, q3, #3 ; Filter1 >>= 3 + + ;calculate output + vqadd.s8 q11, q5, q2 ; u = vp8_signed_char_clamp(ps0 + Filter2) + vqsub.s8 q10, q4, q14 ; u = vp8_signed_char_clamp(qs0 - Filter1) + + veor q6, q11, q0 ; *op0 = u^0x80 + veor q7, q10, q0 ; *oq0 = u^0x80 + add r12, r1, r1 + vswp d13, d14 + + ;store op1, op0, oq0, oq1 + vst2.8 {d12[0], d13[0]}, [r0], r12 + vst2.8 {d12[1], d13[1]}, [r3], r12 + vst2.8 {d12[2], d13[2]}, [r0], r12 + vst2.8 {d12[3], d13[3]}, [r3], r12 + vst2.8 {d12[4], d13[4]}, [r0], r12 + vst2.8 {d12[5], d13[5]}, [r3], r12 + vst2.8 {d12[6], d13[6]}, [r0], r12 + vst2.8 {d12[7], d13[7]}, [r3], r12 + vst2.8 {d14[0], d15[0]}, [r0], r12 + vst2.8 {d14[1], d15[1]}, [r3], r12 + vst2.8 {d14[2], d15[2]}, [r0], r12 + vst2.8 {d14[3], d15[3]}, [r3], r12 + vst2.8 {d14[4], d15[4]}, [r0], r12 + vst2.8 {d14[5], d15[5]}, [r3], r12 + vst2.8 {d14[6], d15[6]}, [r0], r12 + vst2.8 {d14[7], d15[7]}, [r3] + + bx lr + ENDP ; |vp8_loop_filter_simple_vertical_edge_neon| + +; r0 unsigned char *y +; r1 int ystride +; r2 const unsigned char *blimit + +|vp8_loop_filter_bvs_neon| PROC + push {r4, lr} + ldrb r3, [r2] ; load blim from mem + mov r4, r0 + add r0, r0, #4 + vdup.s8 q1, r3 ; duplicate blim + bl vp8_loop_filter_simple_vertical_edge_neon + ; vp8_loop_filter_simple_vertical_edge_neon preserves r1 and q1 + add r0, r4, #8 + bl vp8_loop_filter_simple_vertical_edge_neon + add r0, r4, #12 + pop {r4, lr} + b vp8_loop_filter_simple_vertical_edge_neon + ENDP ;|vp8_loop_filter_bvs_neon| + +; r0 unsigned char *y +; r1 int ystride +; r2 const unsigned char *blimit + +|vp8_loop_filter_mbvs_neon| PROC + ldrb r3, [r2] ; load mblim from mem + vdup.s8 q1, r3 ; duplicate mblim + b vp8_loop_filter_simple_vertical_edge_neon + ENDP ;|vp8_loop_filter_bvs_neon| + END |