shithub: libvpx

Download patch

ref: 617382a2e3b4a8b053a8032a1a89be0dcf8e349c
parent: 10252275f8332dd003653fa7fa53fa134c3031bf
author: Scott LaVarnway <slavarnway@google.com>
date: Wed Sep 10 05:49:34 EDT 2014

VP9 common for ARMv8 by using NEON intrinsics 02

Add vp9_avg_neon.c
- vp9_convolve_avg_neon

Change-Id: Id2c9d5bcfa37cff1a16417aba1656ff07bdf10fd
Signed-off-by: James Yu <james.yu@linaro.org>

--- a/test/convolve_test.cc
+++ b/test/convolve_test.cc
@@ -1758,6 +1758,7 @@
     make_tuple(64, 64, &convolve8_avx2)));
 #endif  // HAVE_AVX2 && HAVE_SSSE3
 
+#if HAVE_NEON
 #if HAVE_NEON_ASM
 const ConvolveFunctions convolve8_neon(
     vp9_convolve_copy_neon, vp9_convolve_avg_neon,
@@ -1764,6 +1765,13 @@
     vp9_convolve8_horiz_neon, vp9_convolve8_avg_horiz_neon,
     vp9_convolve8_vert_neon, vp9_convolve8_avg_vert_neon,
     vp9_convolve8_neon, vp9_convolve8_avg_neon, 0);
+#else  // HAVE_NEON
+const ConvolveFunctions convolve8_neon(
+    vp9_convolve_copy_c, vp9_convolve_avg_neon,
+    vp9_convolve8_horiz_c, vp9_convolve8_avg_horiz_c,
+    vp9_convolve8_vert_c, vp9_convolve8_avg_vert_c,
+    vp9_convolve8_c, vp9_convolve8_avg_c, 0);
+#endif  // HAVE_NEON_ASM
 
 INSTANTIATE_TEST_CASE_P(NEON, ConvolveTest, ::testing::Values(
     make_tuple(4, 4, &convolve8_neon),
@@ -1779,7 +1787,7 @@
     make_tuple(64, 32, &convolve8_neon),
     make_tuple(32, 64, &convolve8_neon),
     make_tuple(64, 64, &convolve8_neon)));
-#endif
+#endif  // HAVE_NEON
 
 #if HAVE_DSPR2
 const ConvolveFunctions convolve8_dspr2(
--- a/vp9/common/arm/neon/vp9_avg_neon.asm
+++ /dev/null
@@ -1,116 +1,0 @@
-;
-;  Copyright (c) 2013 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  |vp9_convolve_avg_neon|
-    ARM
-    REQUIRE8
-    PRESERVE8
-
-    AREA ||.text||, CODE, READONLY, ALIGN=2
-
-|vp9_convolve_avg_neon| PROC
-    push                {r4-r6, lr}
-    ldrd                r4, r5, [sp, #32]
-    mov                 r6, r2
-
-    cmp                 r4, #32
-    bgt                 avg64
-    beq                 avg32
-    cmp                 r4, #8
-    bgt                 avg16
-    beq                 avg8
-    b                   avg4
-
-avg64
-    sub                 lr, r1, #32
-    sub                 r4, r3, #32
-avg64_h
-    pld                 [r0, r1, lsl #1]
-    vld1.8              {q0-q1}, [r0]!
-    vld1.8              {q2-q3}, [r0], lr
-    pld                 [r2, r3]
-    vld1.8              {q8-q9},   [r6@128]!
-    vld1.8              {q10-q11}, [r6@128], r4
-    vrhadd.u8           q0, q0, q8
-    vrhadd.u8           q1, q1, q9
-    vrhadd.u8           q2, q2, q10
-    vrhadd.u8           q3, q3, q11
-    vst1.8              {q0-q1}, [r2@128]!
-    vst1.8              {q2-q3}, [r2@128], r4
-    subs                r5, r5, #1
-    bgt                 avg64_h
-    pop                 {r4-r6, pc}
-
-avg32
-    vld1.8              {q0-q1}, [r0], r1
-    vld1.8              {q2-q3}, [r0], r1
-    vld1.8              {q8-q9},   [r6@128], r3
-    vld1.8              {q10-q11}, [r6@128], r3
-    pld                 [r0]
-    vrhadd.u8           q0, q0, q8
-    pld                 [r0, r1]
-    vrhadd.u8           q1, q1, q9
-    pld                 [r6]
-    vrhadd.u8           q2, q2, q10
-    pld                 [r6, r3]
-    vrhadd.u8           q3, q3, q11
-    vst1.8              {q0-q1}, [r2@128], r3
-    vst1.8              {q2-q3}, [r2@128], r3
-    subs                r5, r5, #2
-    bgt                 avg32
-    pop                 {r4-r6, pc}
-
-avg16
-    vld1.8              {q0}, [r0], r1
-    vld1.8              {q1}, [r0], r1
-    vld1.8              {q2}, [r6@128], r3
-    vld1.8              {q3}, [r6@128], r3
-    pld                 [r0]
-    pld                 [r0, r1]
-    vrhadd.u8           q0, q0, q2
-    pld                 [r6]
-    pld                 [r6, r3]
-    vrhadd.u8           q1, q1, q3
-    vst1.8              {q0}, [r2@128], r3
-    vst1.8              {q1}, [r2@128], r3
-    subs                r5, r5, #2
-    bgt                 avg16
-    pop                 {r4-r6, pc}
-
-avg8
-    vld1.8              {d0}, [r0], r1
-    vld1.8              {d1}, [r0], r1
-    vld1.8              {d2}, [r6@64], r3
-    vld1.8              {d3}, [r6@64], r3
-    pld                 [r0]
-    pld                 [r0, r1]
-    vrhadd.u8           q0, q0, q1
-    pld                 [r6]
-    pld                 [r6, r3]
-    vst1.8              {d0}, [r2@64], r3
-    vst1.8              {d1}, [r2@64], r3
-    subs                r5, r5, #2
-    bgt                 avg8
-    pop                 {r4-r6, pc}
-
-avg4
-    vld1.32             {d0[0]}, [r0], r1
-    vld1.32             {d0[1]}, [r0], r1
-    vld1.32             {d2[0]}, [r6@32], r3
-    vld1.32             {d2[1]}, [r6@32], r3
-    vrhadd.u8           d0, d0, d2
-    vst1.32             {d0[0]}, [r2@32], r3
-    vst1.32             {d0[1]}, [r2@32], r3
-    subs                r5, r5, #2
-    bgt                 avg4
-    pop                 {r4-r6, pc}
-    ENDP
-
-    END
--- /dev/null
+++ b/vp9/common/arm/neon/vp9_avg_neon.c
@@ -1,0 +1,145 @@
+/*
+ *  Copyright (c) 2014 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.
+ */
+
+#include <stddef.h>
+#include <arm_neon.h>
+
+void vp9_convolve_avg_neon(
+        const uint8_t *src,    // r0
+        ptrdiff_t src_stride,  // r1
+        uint8_t *dst,          // r2
+        ptrdiff_t dst_stride,  // r3
+        const int16_t *filter_x,
+        int filter_x_stride,
+        const int16_t *filter_y,
+        int filter_y_stride,
+        int w,
+        int h) {
+    uint8_t *d;
+    uint8x8_t d0u8, d1u8, d2u8, d3u8;
+    uint32x2_t d0u32, d2u32;
+    uint8x16_t q0u8, q1u8, q2u8, q3u8, q8u8, q9u8, q10u8, q11u8;
+    (void)filter_x;  (void)filter_x_stride;
+    (void)filter_y;  (void)filter_y_stride;
+
+    d = dst;
+    if (w > 32) {  // avg64
+        for (; h > 0; h -= 1) {
+            q0u8  = vld1q_u8(src);
+            q1u8  = vld1q_u8(src + 16);
+            q2u8  = vld1q_u8(src + 32);
+            q3u8  = vld1q_u8(src + 48);
+            src += src_stride;
+            q8u8  = vld1q_u8(d);
+            q9u8  = vld1q_u8(d + 16);
+            q10u8 = vld1q_u8(d + 32);
+            q11u8 = vld1q_u8(d + 48);
+            d += dst_stride;
+
+            q0u8 = vrhaddq_u8(q0u8, q8u8);
+            q1u8 = vrhaddq_u8(q1u8, q9u8);
+            q2u8 = vrhaddq_u8(q2u8, q10u8);
+            q3u8 = vrhaddq_u8(q3u8, q11u8);
+
+            vst1q_u8(dst, q0u8);
+            vst1q_u8(dst + 16, q1u8);
+            vst1q_u8(dst + 32, q2u8);
+            vst1q_u8(dst + 48, q3u8);
+            dst += dst_stride;
+        }
+    } else if (w == 32) {  // avg32
+        for (; h > 0; h -= 2) {
+            q0u8 = vld1q_u8(src);
+            q1u8 = vld1q_u8(src + 16);
+            src += src_stride;
+            q2u8 = vld1q_u8(src);
+            q3u8 = vld1q_u8(src + 16);
+            src += src_stride;
+            q8u8 = vld1q_u8(d);
+            q9u8 = vld1q_u8(d + 16);
+            d += dst_stride;
+            q10u8 = vld1q_u8(d);
+            q11u8 = vld1q_u8(d + 16);
+            d += dst_stride;
+
+            q0u8 = vrhaddq_u8(q0u8, q8u8);
+            q1u8 = vrhaddq_u8(q1u8, q9u8);
+            q2u8 = vrhaddq_u8(q2u8, q10u8);
+            q3u8 = vrhaddq_u8(q3u8, q11u8);
+
+            vst1q_u8(dst, q0u8);
+            vst1q_u8(dst + 16, q1u8);
+            dst += dst_stride;
+            vst1q_u8(dst, q2u8);
+            vst1q_u8(dst + 16, q3u8);
+            dst += dst_stride;
+        }
+    } else if (w > 8) {  // avg16
+        for (; h > 0; h -= 2) {
+            q0u8 = vld1q_u8(src);
+            src += src_stride;
+            q1u8 = vld1q_u8(src);
+            src += src_stride;
+            q2u8 = vld1q_u8(d);
+            d += dst_stride;
+            q3u8 = vld1q_u8(d);
+            d += dst_stride;
+
+            q0u8 = vrhaddq_u8(q0u8, q2u8);
+            q1u8 = vrhaddq_u8(q1u8, q3u8);
+
+            vst1q_u8(dst, q0u8);
+            dst += dst_stride;
+            vst1q_u8(dst, q1u8);
+            dst += dst_stride;
+        }
+    } else if (w == 8) {  // avg8
+        for (; h > 0; h -= 2) {
+            d0u8 = vld1_u8(src);
+            src += src_stride;
+            d1u8 = vld1_u8(src);
+            src += src_stride;
+            d2u8 = vld1_u8(d);
+            d += dst_stride;
+            d3u8 = vld1_u8(d);
+            d += dst_stride;
+
+            q0u8 = vcombine_u8(d0u8, d1u8);
+            q1u8 = vcombine_u8(d2u8, d3u8);
+            q0u8 = vrhaddq_u8(q0u8, q1u8);
+
+            vst1_u8(dst, vget_low_u8(q0u8));
+            dst += dst_stride;
+            vst1_u8(dst, vget_high_u8(q0u8));
+            dst += dst_stride;
+        }
+    } else {  // avg4
+        for (; h > 0; h -= 2) {
+            d0u32 = vld1_lane_u32((const uint32_t *)src, d0u32, 0);
+            src += src_stride;
+            d0u32 = vld1_lane_u32((const uint32_t *)src, d0u32, 1);
+            src += src_stride;
+            d2u32 = vld1_lane_u32((const uint32_t *)d, d2u32, 0);
+            d += dst_stride;
+            d2u32 = vld1_lane_u32((const uint32_t *)d, d2u32, 1);
+            d += dst_stride;
+
+            d0u8 = vrhadd_u8(vreinterpret_u8_u32(d0u32),
+                             vreinterpret_u8_u32(d2u32));
+
+            d0u32 = vreinterpret_u32_u8(d0u8);
+            vst1_lane_u32((uint32_t *)dst, d0u32, 0);
+            dst += dst_stride;
+            vst1_lane_u32((uint32_t *)dst, d0u32, 1);
+            dst += dst_stride;
+        }
+    }
+    return;
+}
--- /dev/null
+++ b/vp9/common/arm/neon/vp9_avg_neon_asm.asm
@@ -1,0 +1,116 @@
+;
+;  Copyright (c) 2013 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  |vp9_convolve_avg_neon|
+    ARM
+    REQUIRE8
+    PRESERVE8
+
+    AREA ||.text||, CODE, READONLY, ALIGN=2
+
+|vp9_convolve_avg_neon| PROC
+    push                {r4-r6, lr}
+    ldrd                r4, r5, [sp, #32]
+    mov                 r6, r2
+
+    cmp                 r4, #32
+    bgt                 avg64
+    beq                 avg32
+    cmp                 r4, #8
+    bgt                 avg16
+    beq                 avg8
+    b                   avg4
+
+avg64
+    sub                 lr, r1, #32
+    sub                 r4, r3, #32
+avg64_h
+    pld                 [r0, r1, lsl #1]
+    vld1.8              {q0-q1}, [r0]!
+    vld1.8              {q2-q3}, [r0], lr
+    pld                 [r2, r3]
+    vld1.8              {q8-q9},   [r6@128]!
+    vld1.8              {q10-q11}, [r6@128], r4
+    vrhadd.u8           q0, q0, q8
+    vrhadd.u8           q1, q1, q9
+    vrhadd.u8           q2, q2, q10
+    vrhadd.u8           q3, q3, q11
+    vst1.8              {q0-q1}, [r2@128]!
+    vst1.8              {q2-q3}, [r2@128], r4
+    subs                r5, r5, #1
+    bgt                 avg64_h
+    pop                 {r4-r6, pc}
+
+avg32
+    vld1.8              {q0-q1}, [r0], r1
+    vld1.8              {q2-q3}, [r0], r1
+    vld1.8              {q8-q9},   [r6@128], r3
+    vld1.8              {q10-q11}, [r6@128], r3
+    pld                 [r0]
+    vrhadd.u8           q0, q0, q8
+    pld                 [r0, r1]
+    vrhadd.u8           q1, q1, q9
+    pld                 [r6]
+    vrhadd.u8           q2, q2, q10
+    pld                 [r6, r3]
+    vrhadd.u8           q3, q3, q11
+    vst1.8              {q0-q1}, [r2@128], r3
+    vst1.8              {q2-q3}, [r2@128], r3
+    subs                r5, r5, #2
+    bgt                 avg32
+    pop                 {r4-r6, pc}
+
+avg16
+    vld1.8              {q0}, [r0], r1
+    vld1.8              {q1}, [r0], r1
+    vld1.8              {q2}, [r6@128], r3
+    vld1.8              {q3}, [r6@128], r3
+    pld                 [r0]
+    pld                 [r0, r1]
+    vrhadd.u8           q0, q0, q2
+    pld                 [r6]
+    pld                 [r6, r3]
+    vrhadd.u8           q1, q1, q3
+    vst1.8              {q0}, [r2@128], r3
+    vst1.8              {q1}, [r2@128], r3
+    subs                r5, r5, #2
+    bgt                 avg16
+    pop                 {r4-r6, pc}
+
+avg8
+    vld1.8              {d0}, [r0], r1
+    vld1.8              {d1}, [r0], r1
+    vld1.8              {d2}, [r6@64], r3
+    vld1.8              {d3}, [r6@64], r3
+    pld                 [r0]
+    pld                 [r0, r1]
+    vrhadd.u8           q0, q0, q1
+    pld                 [r6]
+    pld                 [r6, r3]
+    vst1.8              {d0}, [r2@64], r3
+    vst1.8              {d1}, [r2@64], r3
+    subs                r5, r5, #2
+    bgt                 avg8
+    pop                 {r4-r6, pc}
+
+avg4
+    vld1.32             {d0[0]}, [r0], r1
+    vld1.32             {d0[1]}, [r0], r1
+    vld1.32             {d2[0]}, [r6@32], r3
+    vld1.32             {d2[1]}, [r6@32], r3
+    vrhadd.u8           d0, d0, d2
+    vst1.32             {d0[0]}, [r2@32], r3
+    vst1.32             {d0[1]}, [r2@32], r3
+    subs                r5, r5, #2
+    bgt                 avg4
+    pop                 {r4-r6, pc}
+    ENDP
+
+    END
--- a/vp9/common/vp9_rtcd_defs.pl
+++ b/vp9/common/vp9_rtcd_defs.pl
@@ -293,8 +293,7 @@
 $vp9_convolve_copy_neon_asm=vp9_convolve_copy_neon;
 
 add_proto qw/void vp9_convolve_avg/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h";
-specialize qw/vp9_convolve_avg neon_asm dspr2/, "$sse2_x86inc";
-$vp9_convolve_avg_neon_asm=vp9_convolve_avg_neon;
+specialize qw/vp9_convolve_avg neon dspr2/, "$sse2_x86inc";
 
 add_proto qw/void vp9_convolve8/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h";
 specialize qw/vp9_convolve8 sse2 ssse3 neon_asm dspr2/, "$avx2_ssse3";
--- a/vp9/vp9_common.mk
+++ b/vp9/vp9_common.mk
@@ -149,7 +149,6 @@
 VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_iht8x8_add_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_mb_lpf_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_copy_neon$(ASM)
-VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_avg_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_save_reg_neon$(ASM)
 VP9_COMMON_SRCS-$(HAVE_NEON_ASM) += common/arm/neon/vp9_reconintra_neon$(ASM)
 
@@ -156,10 +155,12 @@
 # neon with assembly and intrinsics implementations. If both are available
 # prefer assembly.
 ifeq ($(HAVE_NEON_ASM), yes)
+VP9_COMMON_SRCS-yes += common/arm/neon/vp9_avg_neon_asm$(ASM)
 VP9_COMMON_SRCS-yes += common/arm/neon/vp9_loopfilter_neon_asm$(ASM)
 VP9_COMMON_SRCS-yes += common/arm/neon/vp9_loopfilter_16_neon.c
 else
 ifeq ($(HAVE_NEON), yes)
+VP9_COMMON_SRCS-yes += common/arm/neon/vp9_avg_neon.c
 VP9_COMMON_SRCS-yes += common/arm/neon/vp9_loopfilter_neon.c
 VP9_COMMON_SRCS-yes += common/arm/neon/vp9_loopfilter_16_neon.c
 endif  # HAVE_NEON