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Unified Diff: source/libvpx/vp9/common/arm/neon/vp9_copy_neon.c

Issue 812033011: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 5 years, 11 months ago
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Index: source/libvpx/vp9/common/arm/neon/vp9_copy_neon.c
===================================================================
--- source/libvpx/vp9/common/arm/neon/vp9_copy_neon.c (revision 0)
+++ source/libvpx/vp9/common/arm/neon/vp9_copy_neon.c (working copy)
@@ -0,0 +1,92 @@
+/*
+ * 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_copy_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) {
+ uint8x8_t d0u8, d2u8;
+ uint8x16_t q0u8, q1u8, q2u8, q3u8;
+ (void)filter_x; (void)filter_x_stride;
+ (void)filter_y; (void)filter_y_stride;
+
+ if (w > 32) { // copy64
+ for (; h > 0; h--) {
+ q0u8 = vld1q_u8(src);
+ q1u8 = vld1q_u8(src + 16);
+ q2u8 = vld1q_u8(src + 32);
+ q3u8 = vld1q_u8(src + 48);
+ src += src_stride;
+
+ 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) { // copy32
+ 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;
+
+ 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) { // copy16
+ for (; h > 0; h -= 2) {
+ q0u8 = vld1q_u8(src);
+ src += src_stride;
+ q1u8 = vld1q_u8(src);
+ src += src_stride;
+
+ vst1q_u8(dst, q0u8);
+ dst += dst_stride;
+ vst1q_u8(dst, q1u8);
+ dst += dst_stride;
+ }
+ } else if (w == 8) { // copy8
+ for (; h > 0; h -= 2) {
+ d0u8 = vld1_u8(src);
+ src += src_stride;
+ d2u8 = vld1_u8(src);
+ src += src_stride;
+
+ vst1_u8(dst, d0u8);
+ dst += dst_stride;
+ vst1_u8(dst, d2u8);
+ dst += dst_stride;
+ }
+ } else { // copy4
+ for (; h > 0; h--) {
+ *(uint32_t *)dst = *(const uint32_t *)src;
+ src += src_stride;
+ dst += dst_stride;
+ }
+ }
+ return;
+}
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