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Loopfilter NEON: Use VMOV for constant vectors instead of VLD.
authorAttila Nagy <attilanagy@google.com>
Wed, 4 May 2011 07:51:26 +0000 (10:51 +0300)
committerAttila Nagy <attilanagy@google.com>
Wed, 4 May 2011 08:29:23 +0000 (11:29 +0300)
Change-Id: I562b6e01c32bb51d00f3b95faf757fc7dc29a3a3

vp8/common/arm/neon/loopfilter_neon.asm patch | blob | history
vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.asm patch | blob | history
vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm patch | blob | history
vp8/common/arm/neon/mbloopfilter_neon.asm patch | blob | history

diff --git a/vp8/common/arm/neon/loopfilter_neon.asm b/vp8/common/arm/neon/loopfilter_neon.asm
index d3a79f6..e73dd64 100644 (file)
--- a/vp8/common/arm/neon/loopfilter_neon.asm
+++ b/vp8/common/arm/neon/loopfilter_neon.asm
@@ -308,7 +308,6 @@
 ; q9    q2
 ; q10   q3
 |vp8_loop_filter_neon| PROC
-    ldr         r12, _lf_coeff_
 
     ; vp8_filter_mask
     vabd.u8     q11, q3, q4                 ; abs(p3 - p2)
@@ -339,7 +338,7 @@
     vqadd.u8    q9, q9, q2                  ; a = b + a
     vcge.u8     q9, q0, q9                  ; (a > flimit * 2 + limit) * -1
 
-    vld1.u8     {q0}, [r12]!
+    vmov.u8     q0, #0x80                   ; 0x80
 
     ; vp8_filter() function
     ; convert to signed
@@ -348,7 +347,7 @@
     veor        q5, q5, q0                  ; ps1
     veor        q8, q8, q0                  ; qs1
 
-    vld1.u8     {q10}, [r12]!
+    vmov.u8     q10, #3                     ; #3
 
     vsubl.s8    q2, d14, d12                ; ( qs0 - ps0)
     vsubl.s8    q11, d15, d13
@@ -367,7 +366,7 @@
     vaddw.s8    q2, q2, d2
     vaddw.s8    q11, q11, d3
 
-    vld1.u8     {q9}, [r12]!
+    vmov.u8     q9, #4                      ; #4
 
     ; vp8_filter = clamp(vp8_filter + 3 * ( qs0 - ps0))
     vqmovn.s16  d2, q2
@@ -399,12 +398,4 @@
 
 ;-----------------
 
-_lf_coeff_
-    DCD     lf_coeff
-lf_coeff
-    DCD     0x80808080, 0x80808080, 0x80808080, 0x80808080
-    DCD     0x03030303, 0x03030303, 0x03030303, 0x03030303
-    DCD     0x04040404, 0x04040404, 0x04040404, 0x04040404
-    DCD     0x01010101, 0x01010101, 0x01010101, 0x01010101
-
     END
diff --git a/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.asm b/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.asm
index 5fe7e7e..7c5ea36 100644 (file)
--- a/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.asm
+++ b/vp8/common/arm/neon/loopfiltersimplehorizontaledge_neon.asm
@@ -22,20 +22,19 @@
 ; r1    int p, //pitch
 ; r2    const signed char *flimit,
 ; r3    const signed char *limit,
-; stack(r4) const signed char *thresh,
+; stack(r4) const signed char *thresh (unused)
 ; //stack(r5)   int count --unused
 
 |vp8_loop_filter_simple_horizontal_edge_neon| PROC
     sub         r0, r0, r1, lsl #1          ; move src pointer down by 2 lines
 
-    ldr         r12, _lfhy_coeff_
     vld1.u8     {q5}, [r0], r1              ; p1
     vld1.s8     {d2[], d3[]}, [r2]          ; flimit
     vld1.s8     {d26[], d27[]}, [r3]        ; limit -> q13
     vld1.u8     {q6}, [r0], r1              ; p0
-    vld1.u8     {q0}, [r12]!                ; 0x80
+    vmov.u8     q0, #0x80                   ; 0x80
     vld1.u8     {q7}, [r0], r1              ; q0
-    vld1.u8     {q10}, [r12]!               ; 0x03
+    vmov.u8     q10, #0x03                  ; 0x03
     vld1.u8     {q8}, [r0]                  ; q1
 
     ;vp8_filter_mask() function
@@ -66,7 +65,7 @@
     vadd.s16    q11, q2, q2                 ;  3 * ( qs0 - ps0)
     vadd.s16    q12, q3, q3
 
-    vld1.u8     {q9}, [r12]!                ; 0x04
+    vmov.u8     q9, #0x04                   ; 0x04
 
     vadd.s16    q2, q2, q11
     vadd.s16    q3, q3, q12
@@ -105,11 +104,4 @@
 
 ;-----------------
 
-_lfhy_coeff_
-    DCD     lfhy_coeff
-lfhy_coeff
-    DCD     0x80808080, 0x80808080, 0x80808080, 0x80808080
-    DCD     0x03030303, 0x03030303, 0x03030303, 0x03030303
-    DCD     0x04040404, 0x04040404, 0x04040404, 0x04040404
-
     END
diff --git a/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm b/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm
index c30378b..a7f7b69 100644 (file)
--- a/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm
+++ b/vp8/common/arm/neon/loopfiltersimpleverticaledge_neon.asm
@@ -22,7 +22,7 @@
 ; r1    int p, //pitch
 ; r2    const signed char *flimit,
 ; r3    const signed char *limit,
-; stack(r4) const signed char *thresh,
+; stack(r4) const signed char *thresh (unused)
 ; //stack(r5)   int count --unused
 
 |vp8_loop_filter_simple_vertical_edge_neon| PROC
@@ -32,7 +32,6 @@
     vld1.s8     {d2[], d3[]}, [r2]          ; flimit
     vld1.s8     {d26[], d27[]}, [r3]        ; limit -> q13
     vld4.8      {d6[1], d7[1], d8[1], d9[1]}, [r0], r1
-    ldr         r12, _vlfy_coeff_
     vld4.8      {d6[2], d7[2], d8[2], d9[2]}, [r0], r1
     vld4.8      {d6[3], d7[3], d8[3], d9[3]}, [r0], r1
     vld4.8      {d6[4], d7[4], d8[4], d9[4]}, [r0], r1
@@ -41,11 +40,11 @@
     vld4.8      {d6[7], d7[7], d8[7], d9[7]}, [r0], r1
 
     vld4.8      {d10[0], d11[0], d12[0], d13[0]}, [r0], r1
-    vld1.u8     {q0}, [r12]!                ; 0x80
+    vmov.u8     q0, #0x80                ; 0x80
     vld4.8      {d10[1], d11[1], d12[1], d13[1]}, [r0], r1
-    vld1.u8     {q11}, [r12]!               ; 0x03
+    vmov.u8     q11, #0x03              ; 0x03
     vld4.8      {d10[2], d11[2], d12[2], d13[2]}, [r0], r1
-    vld1.u8     {q12}, [r12]!               ; 0x04
+    vmov.u8     q12, #0x04               ; 0x04
     vld4.8      {d10[3], d11[3], d12[3], d13[3]}, [r0], r1
     vld4.8      {d10[4], d11[4], d12[4], d13[4]}, [r0], r1
     vld4.8      {d10[5], d11[5], d12[5], d13[5]}, [r0], r1
@@ -146,11 +145,4 @@
 
 ;-----------------
 
-_vlfy_coeff_
-    DCD     vlfy_coeff
-vlfy_coeff
-    DCD     0x80808080, 0x80808080, 0x80808080, 0x80808080
-    DCD     0x03030303, 0x03030303, 0x03030303, 0x03030303
-    DCD     0x04040404, 0x04040404, 0x04040404, 0x04040404
-
     END
diff --git a/vp8/common/arm/neon/mbloopfilter_neon.asm b/vp8/common/arm/neon/mbloopfilter_neon.asm
index 981adff..72f0f92 100644 (file)
--- a/vp8/common/arm/neon/mbloopfilter_neon.asm
+++ b/vp8/common/arm/neon/mbloopfilter_neon.asm
@@ -372,7 +372,6 @@
 ; q10   q3
 
 |vp8_mbloop_filter_neon| PROC
-    ldr         r12, _mblf_coeff_
 
     ; vp8_filter_mask
     vabd.u8     q11, q3, q4                 ; abs(p3 - p2)
@@ -396,7 +395,7 @@
 
     vld1.s8     {d4[], d5[]}, [r2]          ; flimit
 
-    vld1.u8     {q0}, [r12]!
+    vmov.u8     q0, #0x80                   ; 0x80
 
     vadd.u8     q2, q2, q2                  ; flimit * 2
     vadd.u8     q2, q2, q1                  ; flimit * 2 +  limit
@@ -431,12 +430,12 @@
     vadd.s16    q2, q2, q10
     vadd.s16    q13, q13, q11
 
-    vld1.u8     {q12}, [r12]!               ; #3
+    vmov.u8     q12, #3                     ; #3
 
     vaddw.s8    q2, q2, d2                  ; vp8_filter + 3 * ( qs0 - ps0)
     vaddw.s8    q13, q13, d3
 
-    vld1.u8     {q11}, [r12]!               ; #4
+    vmov.u8     q11, #4                     ; #4
 
     ; vp8_filter = clamp(vp8_filter + 3 * ( qs0 - ps0))
     vqmovn.s16  d2, q2
@@ -444,16 +443,16 @@
 
     vand        q1, q1, q15                 ; vp8_filter &= mask
 
-    vld1.u8     {q15}, [r12]!               ; #63
-    ;
+    vmov.u16    q15, #63                    ; #63
+
     vand        q13, q1, q14                ; Filter2 &= hev
 
-    vld1.u8     {d7}, [r12]!                ; #9
+    vmov.u8     d7, #9                      ; #9
 
     vqadd.s8    q2, q13, q11                ; Filter1 = clamp(Filter2+4)
     vqadd.s8    q13, q13, q12               ; Filter2 = clamp(Filter2+3)
 
-    vld1.u8     {d6}, [r12]!                ; #18
+    vmov.u8     d6, #18                     ; #18
 
     vshr.s8     q2, q2, #3                  ; Filter1 >>= 3
     vshr.s8     q13, q13, #3                ; Filter2 >>= 3
@@ -463,7 +462,7 @@
 
     vqsub.s8    q7, q7, q2                  ; qs0 = clamp(qs0 - Filter1)
 
-    vld1.u8     {d5}, [r12]!                ; #27
+    vmov.u8     d5, #27                     ; #27
 
     vqadd.s8    q6, q6, q13                 ; ps0 = clamp(ps0 + Filter2)
 
@@ -507,14 +506,4 @@
 
 ;-----------------
 
-_mblf_coeff_
-    DCD     mblf_coeff
-mblf_coeff
-    DCD     0x80808080, 0x80808080, 0x80808080, 0x80808080
-    DCD     0x03030303, 0x03030303, 0x03030303, 0x03030303
-    DCD     0x04040404, 0x04040404, 0x04040404, 0x04040404
-    DCD     0x003f003f, 0x003f003f, 0x003f003f, 0x003f003f
-    DCD     0x09090909, 0x09090909, 0x12121212, 0x12121212
-    DCD     0x1b1b1b1b, 0x1b1b1b1b
-
     END
Domain: Multimedia / Media Playback;