Move vp9_extend.{h,c} from common to encoder

Since they used in encoder only. This commit also re-order includes
for the files that include vp9_extend.h

Change-Id: I929fc113f2135d3198cd1fc6a17434e5a2f8a459

6 files changed, 183 insertions, 15 deletions

diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index e6f5db650..c056bff1b 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -20,7 +20,6 @@
 #include "vp9/common/vp9_common.h"
 #include "vp9/common/vp9_entropy.h"
 #include "vp9/common/vp9_entropymode.h"
-#include "vp9/common/vp9_extend.h"
 #include "vp9/common/vp9_findnearmv.h"
 #include "vp9/common/vp9_idct.h"
 #include "vp9/common/vp9_mvref_common.h"
@@ -33,6 +32,7 @@
 #include "vp9/encoder/vp9_encodeframe.h"
 #include "vp9/encoder/vp9_encodemb.h"
 #include "vp9/encoder/vp9_encodemv.h"
+#include "vp9/encoder/vp9_extend.h"
 #include "vp9/encoder/vp9_onyx_int.h"
 #include "vp9/encoder/vp9_rdopt.h"
 #include "vp9/encoder/vp9_segmentation.h"
diff --git a/vp9/encoder/vp9_extend.c b/vp9/encoder/vp9_extend.c
new file mode 100644
index 000000000..dcbb5ac35
--- /dev/null
+++ b/vp9/encoder/vp9_extend.c
@@ -0,0 +1,143 @@
+/*
+ *  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 "vpx_mem/vpx_mem.h"
+
+#include "vp9/common/vp9_common.h"
+#include "vp9/encoder/vp9_extend.h"
+
+static void copy_and_extend_plane(const uint8_t *src, int src_pitch,
+                                  uint8_t *dst, int dst_pitch,
+                                  int w, int h,
+                                  int extend_top, int extend_left,
+                                  int extend_bottom, int extend_right) {
+  int i, linesize;
+
+  // copy the left and right most columns out
+  const uint8_t *src_ptr1 = src;
+  const uint8_t *src_ptr2 = src + w - 1;
+  uint8_t *dst_ptr1 = dst - extend_left;
+  uint8_t *dst_ptr2 = dst + w;
+
+  for (i = 0; i < h; i++) {
+    vpx_memset(dst_ptr1, src_ptr1[0], extend_left);
+    vpx_memcpy(dst_ptr1 + extend_left, src_ptr1, w);
+    vpx_memset(dst_ptr2, src_ptr2[0], extend_right);
+    src_ptr1 += src_pitch;
+    src_ptr2 += src_pitch;
+    dst_ptr1 += dst_pitch;
+    dst_ptr2 += dst_pitch;
+  }
+
+  // Now copy the top and bottom lines into each line of the respective
+  // borders
+  src_ptr1 = dst - extend_left;
+  src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
+  dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
+  dst_ptr2 = dst + dst_pitch * (h) - extend_left;
+  linesize = extend_left + extend_right + w;
+
+  for (i = 0; i < extend_top; i++) {
+    vpx_memcpy(dst_ptr1, src_ptr1, linesize);
+    dst_ptr1 += dst_pitch;
+  }
+
+  for (i = 0; i < extend_bottom; i++) {
+    vpx_memcpy(dst_ptr2, src_ptr2, linesize);
+    dst_ptr2 += dst_pitch;
+  }
+}
+
+void vp9_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
+                               YV12_BUFFER_CONFIG *dst) {
+  // Extend src frame in buffer
+  // Altref filtering assumes 16 pixel extension
+  const int et_y = 16;
+  const int el_y = 16;
+  // Motion estimation may use src block variance with the block size up
+  // to 64x64, so the right and bottom need to be extended to 64 multiple
+  // or up to 16, whichever is greater.
+  const int eb_y = MAX(ALIGN_POWER_OF_TWO(src->y_width, 6) - src->y_width,
+                       16);
+  const int er_y = MAX(ALIGN_POWER_OF_TWO(src->y_height, 6) - src->y_height,
+                       16);
+  const int uv_width_subsampling = (src->uv_width != src->y_width);
+  const int uv_height_subsampling = (src->uv_height != src->y_height);
+  const int et_uv = et_y >> uv_height_subsampling;
+  const int el_uv = el_y >> uv_width_subsampling;
+  const int eb_uv = eb_y >> uv_height_subsampling;
+  const int er_uv = er_y >> uv_width_subsampling;
+
+#if CONFIG_ALPHA
+  const int et_a = dst->border >> (dst->alpha_height != dst->y_height);
+  const int el_a = dst->border >> (dst->alpha_width != dst->y_width);
+  const int eb_a = et_a + dst->alpha_height - src->alpha_height;
+  const int er_a = el_a + dst->alpha_width - src->alpha_width;
+
+  copy_and_extend_plane(src->alpha_buffer, src->alpha_stride,
+                        dst->alpha_buffer, dst->alpha_stride,
+                        src->alpha_width, src->alpha_height,
+                        et_a, el_a, eb_a, er_a);
+#endif
+
+  copy_and_extend_plane(src->y_buffer, src->y_stride,
+                        dst->y_buffer, dst->y_stride,
+                        src->y_width, src->y_height,
+                        et_y, el_y, eb_y, er_y);
+
+  copy_and_extend_plane(src->u_buffer, src->uv_stride,
+                        dst->u_buffer, dst->uv_stride,
+                        src->uv_width, src->uv_height,
+                        et_uv, el_uv, eb_uv, er_uv);
+
+  copy_and_extend_plane(src->v_buffer, src->uv_stride,
+                        dst->v_buffer, dst->uv_stride,
+                        src->uv_width, src->uv_height,
+                        et_uv, el_uv, eb_uv, er_uv);
+}
+
+void vp9_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG *src,
+                                         YV12_BUFFER_CONFIG *dst,
+                                         int srcy, int srcx,
+                                         int srch, int srcw) {
+  // If the side is not touching the bounder then don't extend.
+  const int et_y = srcy ? 0 : dst->border;
+  const int el_y = srcx ? 0 : dst->border;
+  const int eb_y = srcy + srch != src->y_height ? 0 :
+                      dst->border + dst->y_height - src->y_height;
+  const int er_y = srcx + srcw != src->y_width ? 0 :
+                      dst->border + dst->y_width - src->y_width;
+  const int src_y_offset = srcy * src->y_stride + srcx;
+  const int dst_y_offset = srcy * dst->y_stride + srcx;
+
+  const int et_uv = ROUND_POWER_OF_TWO(et_y, 1);
+  const int el_uv = ROUND_POWER_OF_TWO(el_y, 1);
+  const int eb_uv = ROUND_POWER_OF_TWO(eb_y, 1);
+  const int er_uv = ROUND_POWER_OF_TWO(er_y, 1);
+  const int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
+  const int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
+  const int srch_uv = ROUND_POWER_OF_TWO(srch, 1);
+  const int srcw_uv = ROUND_POWER_OF_TWO(srcw, 1);
+
+  copy_and_extend_plane(src->y_buffer + src_y_offset, src->y_stride,
+                        dst->y_buffer + dst_y_offset, dst->y_stride,
+                        srcw, srch,
+                        et_y, el_y, eb_y, er_y);
+
+  copy_and_extend_plane(src->u_buffer + src_uv_offset, src->uv_stride,
+                        dst->u_buffer + dst_uv_offset, dst->uv_stride,
+                        srcw_uv, srch_uv,
+                        et_uv, el_uv, eb_uv, er_uv);
+
+  copy_and_extend_plane(src->v_buffer + src_uv_offset, src->uv_stride,
+                        dst->v_buffer + dst_uv_offset, dst->uv_stride,
+                        srcw_uv, srch_uv,
+                        et_uv, el_uv, eb_uv, er_uv);
+}
diff --git a/vp9/encoder/vp9_extend.h b/vp9/encoder/vp9_extend.h
new file mode 100644
index 000000000..7ff79b7b6
--- /dev/null
+++ b/vp9/encoder/vp9_extend.h
@@ -0,0 +1,25 @@
+/*
+ *  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.
+ */
+
+#ifndef VP9_COMMON_VP9_EXTEND_H_
+#define VP9_COMMON_VP9_EXTEND_H_
+
+#include "vpx_scale/yv12config.h"
+#include "vpx/vpx_integer.h"
+
+
+void vp9_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
+                               YV12_BUFFER_CONFIG *dst);
+
+void vp9_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG *src,
+                                         YV12_BUFFER_CONFIG *dst,
+                                         int srcy, int srcx,
+                                         int srch, int srcw);
+#endif  // VP9_COMMON_VP9_EXTEND_H_
diff --git a/vp9/encoder/vp9_firstpass.c b/vp9/encoder/vp9_firstpass.c
index cbd321b34..1dca8799a 100644
--- a/vp9/encoder/vp9_firstpass.c
+++ b/vp9/encoder/vp9_firstpass.c
@@ -11,16 +11,16 @@
 #include <math.h>
 #include <limits.h>
 #include <stdio.h>
+#include "vp9/common/vp9_systemdependent.h"
 #include "vp9/encoder/vp9_block.h"
+#include "vp9/encoder/vp9_encodeframe.h"
+#include "vp9/encoder/vp9_encodemb.h"
+#include "vp9/encoder/vp9_extend.h"
+#include "vp9/encoder/vp9_firstpass.h"
+#include "vp9/encoder/vp9_mcomp.h"
 #include "vp9/encoder/vp9_onyx_int.h"
 #include "vp9/encoder/vp9_variance.h"
-#include "vp9/encoder/vp9_mcomp.h"
-#include "vp9/encoder/vp9_firstpass.h"
 #include "vpx_scale/vpx_scale.h"
-#include "vp9/encoder/vp9_encodeframe.h"
-#include "vp9/encoder/vp9_encodemb.h"
-#include "vp9/common/vp9_extend.h"
-#include "vp9/common/vp9_systemdependent.h"
 #include "vpx_mem/vpx_mem.h"
 #include "vpx_scale/yv12config.h"
 #include "vp9/encoder/vp9_quantize.h"
diff --git a/vp9/encoder/vp9_lookahead.c b/vp9/encoder/vp9_lookahead.c
index c28c86845..277bd7db1 100644
--- a/vp9/encoder/vp9_lookahead.c
+++ b/vp9/encoder/vp9_lookahead.c
@@ -12,8 +12,8 @@
 
 #include "./vpx_config.h"
 #include "vp9/common/vp9_common.h"
+#include "vp9/encoder/vp9_extend.h"
 #include "vp9/encoder/vp9_lookahead.h"
-#include "vp9/common/vp9_extend.h"
 
 struct lookahead_ctx {
   unsigned int max_sz;         /* Absolute size of the queue */
diff --git a/vp9/encoder/vp9_temporal_filter.c b/vp9/encoder/vp9_temporal_filter.c
index 2cace0378..3bffb12af 100644
--- a/vp9/encoder/vp9_temporal_filter.c
+++ b/vp9/encoder/vp9_temporal_filter.c
@@ -11,22 +11,22 @@
 #include <math.h>
 #include <limits.h>
 
+#include "vp9/common/vp9_alloccommon.h"
 #include "vp9/common/vp9_onyxc_int.h"
+#include "vp9/common/vp9_quant_common.h"
 #include "vp9/common/vp9_reconinter.h"
-#include "vp9/encoder/vp9_onyx_int.h"
 #include "vp9/common/vp9_systemdependent.h"
-#include "vp9/encoder/vp9_quantize.h"
-#include "vp9/common/vp9_alloccommon.h"
-#include "vp9/encoder/vp9_mcomp.h"
+#include "vp9/encoder/vp9_extend.h"
 #include "vp9/encoder/vp9_firstpass.h"
+#include "vp9/encoder/vp9_mcomp.h"
+#include "vp9/encoder/vp9_onyx_int.h"
 #include "vp9/encoder/vp9_psnr.h"
-#include "vpx_scale/vpx_scale.h"
-#include "vp9/common/vp9_extend.h"
+#include "vp9/encoder/vp9_quantize.h"
 #include "vp9/encoder/vp9_ratectrl.h"
-#include "vp9/common/vp9_quant_common.h"
 #include "vp9/encoder/vp9_segmentation.h"
 #include "vpx_mem/vpx_mem.h"
 #include "vpx_ports/vpx_timer.h"
+#include "vpx_scale/vpx_scale.h"
 
 #define ALT_REF_MC_ENABLED 1    // dis/enable MC in AltRef filtering
 #define ALT_REF_SUBPEL_ENABLED 1  // dis/enable subpel in MC AltRef filtering