ref: ad42b09f2f4bea38c40a3007f86c35809df9f78f
parent: f386d3960d60deac6c908ea63965f15c7090038d
parent: 727af7cebe3698b8493ba6c1360b0a6606c310fb
author: Johann <johannkoenig@google.com>
date: Mon May 5 09:09:12 EDT 2014
Merge "VP8 for ARMv8 by using NEON intrinsics 15"
--- a/vp8/common/arm/neon/idct_dequant_0_2x_neon.asm
+++ /dev/null
@@ -1,81 +1,0 @@
-;
-; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
-;
-; Use of this source code is governed by a BSD-style license and patent
-; grant that can be found in the LICENSE file in the root of the source
-; tree. All contributing project authors may be found in the AUTHORS
-; file in the root of the source tree.
-;
-
-
- EXPORT |idct_dequant_0_2x_neon|
- ARM
- REQUIRE8
- PRESERVE8
-
- AREA ||.text||, CODE, READONLY, ALIGN=2
-;void idct_dequant_0_2x_neon(short *q, short dq,
-; unsigned char *dst, int stride);
-; r0 *q
-; r1 dq
-; r2 *dst
-; r3 stride
-|idct_dequant_0_2x_neon| PROC
- push {r4, r5}- vpush {d8-d15}-
- add r12, r2, #4
- vld1.32 {d2[0]}, [r2], r3- vld1.32 {d8[0]}, [r12], r3- vld1.32 {d2[1]}, [r2], r3- vld1.32 {d8[1]}, [r12], r3- vld1.32 {d4[0]}, [r2], r3- vld1.32 {d10[0]}, [r12], r3- vld1.32 {d4[1]}, [r2], r3- vld1.32 {d10[1]}, [r12], r3-
- ldrh r12, [r0] ; lo q
- ldrh r4, [r0, #32] ; hi q
- mov r5, #0
- strh r5, [r0]
- strh r5, [r0, #32]
-
- sxth r12, r12 ; lo
- mul r0, r12, r1
- add r0, r0, #4
- asr r0, r0, #3
- vdup.16 q0, r0
- sxth r4, r4 ; hi
- mul r0, r4, r1
- add r0, r0, #4
- asr r0, r0, #3
- vdup.16 q3, r0
-
- vaddw.u8 q1, q0, d2 ; lo
- vaddw.u8 q2, q0, d4
- vaddw.u8 q4, q3, d8 ; hi
- vaddw.u8 q5, q3, d10
-
- sub r2, r2, r3, lsl #2 ; dst - 4*stride
- add r0, r2, #4
-
- vqmovun.s16 d2, q1 ; lo
- vqmovun.s16 d4, q2
- vqmovun.s16 d8, q4 ; hi
- vqmovun.s16 d10, q5
-
- vst1.32 {d2[0]}, [r2], r3 ; lo- vst1.32 {d8[0]}, [r0], r3 ; hi- vst1.32 {d2[1]}, [r2], r3- vst1.32 {d8[1]}, [r0], r3- vst1.32 {d4[0]}, [r2], r3- vst1.32 {d10[0]}, [r0], r3- vst1.32 {d4[1]}, [r2]- vst1.32 {d10[1]}, [r0]-
- vpop {d8-d15}- pop {r4, r5}- bx lr
-
- ENDP ; |idct_dequant_0_2x_neon|
- END
--- /dev/null
+++ b/vp8/common/arm/neon/idct_dequant_0_2x_neon.c
@@ -1,0 +1,62 @@
+/*
+ * 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 <arm_neon.h>
+
+void idct_dequant_0_2x_neon(
+ int16_t *q,
+ int16_t dq,
+ unsigned char *dst,
+ int stride) {+ unsigned char *dst0;
+ int i, a0, a1;
+ int16x8x2_t q2Add;
+ int32x2_t d2s32, d4s32;
+ uint8x8_t d2u8, d4u8;
+ uint16x8_t q1u16, q2u16;
+
+ a0 = ((q[0] * dq) + 4) >> 3;
+ a1 = ((q[16] * dq) + 4) >> 3;
+ q[0] = q[16] = 0;
+ q2Add.val[0] = vdupq_n_s16((int16_t)a0);
+ q2Add.val[1] = vdupq_n_s16((int16_t)a1);
+
+ for (i = 0; i < 2; i++, dst += 4) {+ dst0 = dst;
+ d2s32 = vld1_lane_s32((const int32_t *)dst0, d2s32, 0);
+ dst0 += stride;
+ d2s32 = vld1_lane_s32((const int32_t *)dst0, d2s32, 1);
+ dst0 += stride;
+ d4s32 = vld1_lane_s32((const int32_t *)dst0, d4s32, 0);
+ dst0 += stride;
+ d4s32 = vld1_lane_s32((const int32_t *)dst0, d4s32, 1);
+
+ q1u16 = vaddw_u8(vreinterpretq_u16_s16(q2Add.val[i]),
+ vreinterpret_u8_s32(d2s32));
+ q2u16 = vaddw_u8(vreinterpretq_u16_s16(q2Add.val[i]),
+ vreinterpret_u8_s32(d4s32));
+
+ d2u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16));
+ d4u8 = vqmovun_s16(vreinterpretq_s16_u16(q2u16));
+
+ d2s32 = vreinterpret_s32_u8(d2u8);
+ d4s32 = vreinterpret_s32_u8(d4u8);
+
+ dst0 = dst;
+ vst1_lane_s32((int32_t *)dst0, d2s32, 0);
+ dst0 += stride;
+ vst1_lane_s32((int32_t *)dst0, d2s32, 1);
+ dst0 += stride;
+ vst1_lane_s32((int32_t *)dst0, d4s32, 0);
+ dst0 += stride;
+ vst1_lane_s32((int32_t *)dst0, d4s32, 1);
+ }
+ return;
+}
--- a/vp8/vp8_common.mk
+++ b/vp8/vp8_common.mk
@@ -160,7 +160,6 @@
# common (neon)
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/buildintrapredictorsmby_neon$(ASM)
-VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/idct_dequant_0_2x_neon$(ASM)
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/idct_blk_neon.c
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/variance_neon$(ASM)
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/vp8_subpixelvariance8x8_neon$(ASM)
@@ -182,6 +181,7 @@
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/sad_neon.c
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/shortidct4x4llm_neon.c
VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/sixtappredict_neon.c
+VP8_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/idct_dequant_0_2x_neon.c
$(eval $(call rtcd_h_template,vp8_rtcd,vp8/common/rtcd_defs.pl))