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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
commit68569dee1416593955c1570d638b3d9250b33012 (patch)
treed960f017cd7eba3f125b7e8a813789ee2e076310 /third_party/aom/aom_scale/mips
parent07c17b6b98ed32fcecff15c083ab0fd878de3cf0 (diff)
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
Diffstat (limited to 'third_party/aom/aom_scale/mips')
-rw-r--r--third_party/aom/aom_scale/mips/dspr2/yv12extend_dspr2.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/third_party/aom/aom_scale/mips/dspr2/yv12extend_dspr2.c b/third_party/aom/aom_scale/mips/dspr2/yv12extend_dspr2.c
new file mode 100644
index 000000000..51192f7b9
--- /dev/null
+++ b/third_party/aom/aom_scale/mips/dspr2/yv12extend_dspr2.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+
+#include "./aom_config.h"
+#include "aom_scale/yv12config.h"
+#include "aom_mem/aom_mem.h"
+#include "aom_scale/aom_scale.h"
+
+#if HAVE_DSPR2
+static void extend_plane(uint8_t *const src, int src_stride, int width,
+ int height, int extend_top, int extend_left,
+ int extend_bottom, int extend_right) {
+ int i, j;
+ uint8_t *left_src, *right_src;
+ uint8_t *left_dst_start, *right_dst_start;
+ uint8_t *left_dst, *right_dst;
+ uint8_t *top_src, *bot_src;
+ uint8_t *top_dst, *bot_dst;
+ uint32_t left_pix;
+ uint32_t right_pix;
+ uint32_t linesize;
+
+ /* copy the left and right most columns out */
+ left_src = src;
+ right_src = src + width - 1;
+ left_dst_start = src - extend_left;
+ right_dst_start = src + width;
+
+ for (i = height; i--;) {
+ left_dst = left_dst_start;
+ right_dst = right_dst_start;
+
+ __asm__ __volatile__(
+ "lb %[left_pix], 0(%[left_src]) \n\t"
+ "lb %[right_pix], 0(%[right_src]) \n\t"
+ "replv.qb %[left_pix], %[left_pix] \n\t"
+ "replv.qb %[right_pix], %[right_pix] \n\t"
+
+ : [left_pix] "=&r"(left_pix), [right_pix] "=&r"(right_pix)
+ : [left_src] "r"(left_src), [right_src] "r"(right_src));
+
+ for (j = extend_left / 4; j--;) {
+ __asm__ __volatile__(
+ "sw %[left_pix], 0(%[left_dst]) \n\t"
+ "sw %[right_pix], 0(%[right_dst]) \n\t"
+
+ :
+ : [left_dst] "r"(left_dst), [left_pix] "r"(left_pix),
+ [right_dst] "r"(right_dst), [right_pix] "r"(right_pix));
+
+ left_dst += 4;
+ right_dst += 4;
+ }
+
+ for (j = extend_left % 4; j--;) {
+ __asm__ __volatile__(
+ "sb %[left_pix], 0(%[left_dst]) \n\t"
+ "sb %[right_pix], 0(%[right_dst]) \n\t"
+
+ :
+ : [left_dst] "r"(left_dst), [left_pix] "r"(left_pix),
+ [right_dst] "r"(right_dst), [right_pix] "r"(right_pix));
+
+ left_dst += 1;
+ right_dst += 1;
+ }
+
+ left_src += src_stride;
+ right_src += src_stride;
+ left_dst_start += src_stride;
+ right_dst_start += src_stride;
+ }
+
+ /* Now copy the top and bottom lines into each line of the respective
+ * borders
+ */
+ top_src = src - extend_left;
+ bot_src = src + src_stride * (height - 1) - extend_left;
+ top_dst = src + src_stride * (-extend_top) - extend_left;
+ bot_dst = src + src_stride * (height)-extend_left;
+ linesize = extend_left + extend_right + width;
+
+ for (i = 0; i < extend_top; i++) {
+ memcpy(top_dst, top_src, linesize);
+ top_dst += src_stride;
+ }
+
+ for (i = 0; i < extend_bottom; i++) {
+ memcpy(bot_dst, bot_src, linesize);
+ bot_dst += src_stride;
+ }
+}
+
+static void extend_frame(YV12_BUFFER_CONFIG *const ybf, int ext_size) {
+ const int c_w = ybf->uv_crop_width;
+ const int c_h = ybf->uv_crop_height;
+ const int ss_x = ybf->uv_width < ybf->y_width;
+ const int ss_y = ybf->uv_height < ybf->y_height;
+ const int c_et = ext_size >> ss_y;
+ const int c_el = ext_size >> ss_x;
+ const int c_eb = c_et + ybf->uv_height - ybf->uv_crop_height;
+ const int c_er = c_el + ybf->uv_width - ybf->uv_crop_width;
+
+ assert(ybf->y_height - ybf->y_crop_height < 16);
+ assert(ybf->y_width - ybf->y_crop_width < 16);
+ assert(ybf->y_height - ybf->y_crop_height >= 0);
+ assert(ybf->y_width - ybf->y_crop_width >= 0);
+
+ extend_plane(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
+ ybf->y_crop_height, ext_size, ext_size,
+ ext_size + ybf->y_height - ybf->y_crop_height,
+ ext_size + ybf->y_width - ybf->y_crop_width);
+
+ extend_plane(ybf->u_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
+
+ extend_plane(ybf->v_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
+}
+
+void aom_extend_frame_borders_dspr2(YV12_BUFFER_CONFIG *ybf) {
+ extend_frame(ybf, ybf->border);
+}
+
+void aom_extend_frame_inner_borders_dspr2(YV12_BUFFER_CONFIG *ybf) {
+ const int inner_bw = (ybf->border > AOMINNERBORDERINPIXELS)
+ ? AOMINNERBORDERINPIXELS
+ : ybf->border;
+ extend_frame(ybf, inner_bw);
+}
+#endif