Add m-esr52 at 52.6.0

1 files changed, 188 insertions, 0 deletions

diff --git a/media/libvpx/vp8/common/extend.c b/media/libvpx/vp8/common/extend.c
new file mode 100644
index 000000000..2d938ad78
--- /dev/null
+++ b/media/libvpx/vp8/common/extend.c
@@ -0,0 +1,188 @@
+/*
+ *  Copyright (c) 2010 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 "extend.h"
+#include "vpx_mem/vpx_mem.h"
+
+
+static void copy_and_extend_plane
+(
+    unsigned char *s, /* source */
+    int sp,           /* source pitch */
+    unsigned char *d, /* destination */
+    int dp,           /* destination pitch */
+    int h,            /* height */
+    int w,            /* width */
+    int et,           /* extend top border */
+    int el,           /* extend left border */
+    int eb,           /* extend bottom border */
+    int er            /* extend right border */
+)
+{
+    int i;
+    unsigned char *src_ptr1, *src_ptr2;
+    unsigned char *dest_ptr1, *dest_ptr2;
+    int linesize;
+
+    /* copy the left and right most columns out */
+    src_ptr1 = s;
+    src_ptr2 = s + w - 1;
+    dest_ptr1 = d - el;
+    dest_ptr2 = d + w;
+
+    for (i = 0; i < h; i++)
+    {
+        memset(dest_ptr1, src_ptr1[0], el);
+        memcpy(dest_ptr1 + el, src_ptr1, w);
+        memset(dest_ptr2, src_ptr2[0], er);
+        src_ptr1  += sp;
+        src_ptr2  += sp;
+        dest_ptr1 += dp;
+        dest_ptr2 += dp;
+    }
+
+    /* Now copy the top and bottom lines into each line of the respective
+     * borders
+     */
+    src_ptr1 = d - el;
+    src_ptr2 = d + dp * (h - 1) - el;
+    dest_ptr1 = d + dp * (-et) - el;
+    dest_ptr2 = d + dp * (h) - el;
+    linesize = el + er + w;
+
+    for (i = 0; i < et; i++)
+    {
+        memcpy(dest_ptr1, src_ptr1, linesize);
+        dest_ptr1 += dp;
+    }
+
+    for (i = 0; i < eb; i++)
+    {
+        memcpy(dest_ptr2, src_ptr2, linesize);
+        dest_ptr2 += dp;
+    }
+}
+
+
+void vp8_copy_and_extend_frame(YV12_BUFFER_CONFIG *src,
+                               YV12_BUFFER_CONFIG *dst)
+{
+    int et = dst->border;
+    int el = dst->border;
+    int eb = dst->border + dst->y_height - src->y_height;
+    int er = dst->border + dst->y_width - src->y_width;
+
+    copy_and_extend_plane(src->y_buffer, src->y_stride,
+                          dst->y_buffer, dst->y_stride,
+                          src->y_height, src->y_width,
+                          et, el, eb, er);
+
+    et = dst->border >> 1;
+    el = dst->border >> 1;
+    eb = (dst->border >> 1) + dst->uv_height - src->uv_height;
+    er = (dst->border >> 1) + dst->uv_width - src->uv_width;
+
+    copy_and_extend_plane(src->u_buffer, src->uv_stride,
+                          dst->u_buffer, dst->uv_stride,
+                          src->uv_height, src->uv_width,
+                          et, el, eb, er);
+
+    copy_and_extend_plane(src->v_buffer, src->uv_stride,
+                          dst->v_buffer, dst->uv_stride,
+                          src->uv_height, src->uv_width,
+                          et, el, eb, er);
+}
+
+
+void vp8_copy_and_extend_frame_with_rect(YV12_BUFFER_CONFIG *src,
+                                         YV12_BUFFER_CONFIG *dst,
+                                         int srcy, int srcx,
+                                         int srch, int srcw)
+{
+    int et = dst->border;
+    int el = dst->border;
+    int eb = dst->border + dst->y_height - src->y_height;
+    int er = dst->border + dst->y_width - src->y_width;
+    int src_y_offset = srcy * src->y_stride + srcx;
+    int dst_y_offset = srcy * dst->y_stride + srcx;
+    int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
+    int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
+
+    /* If the side is not touching the bounder then don't extend. */
+    if (srcy)
+      et = 0;
+    if (srcx)
+      el = 0;
+    if (srcy + srch != src->y_height)
+      eb = 0;
+    if (srcx + srcw != src->y_width)
+      er = 0;
+
+    copy_and_extend_plane(src->y_buffer + src_y_offset,
+                          src->y_stride,
+                          dst->y_buffer + dst_y_offset,
+                          dst->y_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+
+    et = (et + 1) >> 1;
+    el = (el + 1) >> 1;
+    eb = (eb + 1) >> 1;
+    er = (er + 1) >> 1;
+    srch = (srch + 1) >> 1;
+    srcw = (srcw + 1) >> 1;
+
+    copy_and_extend_plane(src->u_buffer + src_uv_offset,
+                          src->uv_stride,
+                          dst->u_buffer + dst_uv_offset,
+                          dst->uv_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+
+    copy_and_extend_plane(src->v_buffer + src_uv_offset,
+                          src->uv_stride,
+                          dst->v_buffer + dst_uv_offset,
+                          dst->uv_stride,
+                          srch, srcw,
+                          et, el, eb, er);
+}
+
+
+/* note the extension is only for the last row, for intra prediction purpose */
+void vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf,
+                       unsigned char *YPtr,
+                       unsigned char *UPtr,
+                       unsigned char *VPtr)
+{
+    int i;
+
+    YPtr += ybf->y_stride * 14;
+    UPtr += ybf->uv_stride * 6;
+    VPtr += ybf->uv_stride * 6;
+
+    for (i = 0; i < 4; i++)
+    {
+        YPtr[i] = YPtr[-1];
+        UPtr[i] = UPtr[-1];
+        VPtr[i] = VPtr[-1];
+    }
+
+    YPtr += ybf->y_stride;
+    UPtr += ybf->uv_stride;
+    VPtr += ybf->uv_stride;
+
+    for (i = 0; i < 4; i++)
+    {
+        YPtr[i] = YPtr[-1];
+        UPtr[i] = UPtr[-1];
+        VPtr[i] = VPtr[-1];
+    }
+}