From 232d90d8fd47cdc07625036bdd0e4c8f009b8c10 Mon Sep 17 00:00:00 2001
From: Yaowu Xu <yaowu@google.com>
Date: Wed, 15 May 2013 17:21:15 -0700
Subject: Generalized intra 4x4 encoding for all sizes

Change-Id: I1b86744fa247233c8df031b3f4b87b212c8dd094
---
 vp9/common/vp9_reconinter.h |  1 -
 vp9/common/vp9_reconintra.c | 56 ++++++++++++++++++++++++++++-----------------
 vp9/common/vp9_reconintra.h |  6 +++++
 3 files changed, 41 insertions(+), 22 deletions(-)

(limited to 'vp9/common')

diff --git a/vp9/common/vp9_reconinter.h b/vp9/common/vp9_reconinter.h
index af289d27e..4e521850d 100644
--- a/vp9/common/vp9_reconinter.h
+++ b/vp9/common/vp9_reconinter.h
@@ -15,7 +15,6 @@
 #include "vp9/common/vp9_onyxc_int.h"
 
 struct subpix_fn_table;
-
 void vp9_build_inter_predictors_sby(MACROBLOCKD *xd,
                                     int mb_row,
                                     int mb_col,
diff --git a/vp9/common/vp9_reconintra.c b/vp9/common/vp9_reconintra.c
index ea4805f33..1588f33ce 100644
--- a/vp9/common/vp9_reconintra.c
+++ b/vp9/common/vp9_reconintra.c
@@ -13,6 +13,7 @@
 #include "./vpx_config.h"
 #include "vp9_rtcd.h"
 #include "vp9/common/vp9_reconintra.h"
+#include "vp9/common/vp9_onyxc_int.h"
 #include "vpx_mem/vpx_mem.h"
 
 static void d27_predictor(uint8_t *ypred_ptr, int y_stride,
@@ -378,38 +379,51 @@ void vp9_build_intra_predictors_sby_s(MACROBLOCKD *xd,
 
 void vp9_build_intra_predictors_sbuv_s(MACROBLOCKD *xd,
                                        BLOCK_SIZE_TYPE bsize) {
-  int p;
+  const int bwl = b_width_log2(bsize), bw = 2 << bwl;
+  const int bhl = b_height_log2(bsize), bh = 2 << bhl;
 
-  for (p = 1; p < MAX_MB_PLANE; p++) {
-    const struct macroblockd_plane* const pd = &xd->plane[p];
-    const int bwl = b_width_log2(bsize) - pd->subsampling_x;
-    const int bw = 4 << bwl;
-    const int bhl = b_height_log2(bsize) - pd->subsampling_y;
-    const int bh = 4 << bhl;
-
-    vp9_build_intra_predictors(pd->dst.buf, pd->dst.stride,
-                               pd->dst.buf, pd->dst.stride,
-                               xd->mode_info_context->mbmi.uv_mode,
-                               bw, bh, xd->up_available,
-                               xd->left_available, 0 /*xd->right_available*/);
-  }
+  vp9_build_intra_predictors(xd->plane[1].dst.buf, xd->plane[1].dst.stride,
+                             xd->plane[1].dst.buf, xd->plane[1].dst.stride,
+                             xd->mode_info_context->mbmi.uv_mode,
+                             bw, bh, xd->up_available,
+                             xd->left_available, 0 /*xd->right_available*/);
+  vp9_build_intra_predictors(xd->plane[2].dst.buf, xd->plane[1].dst.stride,
+                             xd->plane[2].dst.buf, xd->plane[1].dst.stride,
+                             xd->mode_info_context->mbmi.uv_mode,
+                             bw, bh, xd->up_available,
+                             xd->left_available, 0 /*xd->right_available*/);
 }
 
-void vp9_intra4x4_predict(MACROBLOCKD *xd,
-                          int block_idx,
-                          BLOCK_SIZE_TYPE bsize,
-                          int mode,
-                          uint8_t *predictor, int pre_stride) {
-  const int bwl = b_width_log2(bsize);
+void vp9_predict_intra_block(MACROBLOCKD *xd,
+                            int block_idx,
+                            BLOCK_SIZE_TYPE bsize,
+                            TX_SIZE tx_size,
+                            int mode,
+                            uint8_t *predictor, int pre_stride) {
+  const int bwl = b_width_log2(bsize) - tx_size;
   const int wmask = (1 << bwl) - 1;
   const int have_top =
       (block_idx >> bwl) || xd->up_available;
   const int have_left =
       (block_idx & wmask) || xd->left_available;
   const int have_right = ((block_idx & wmask) != wmask);
+  const int txfm_block_size = 4 << tx_size;
 
+  assert(bwl >= 0);
   vp9_build_intra_predictors(predictor, pre_stride,
                              predictor, pre_stride,
-                             mode, 4, 4, have_top, have_left,
+                             mode,
+                             txfm_block_size,
+                             txfm_block_size,
+                             have_top, have_left,
                              have_right);
 }
+
+void vp9_intra4x4_predict(MACROBLOCKD *xd,
+                          int block_idx,
+                          BLOCK_SIZE_TYPE bsize,
+                          int mode,
+                          uint8_t *predictor, int pre_stride) {
+  vp9_predict_intra_block(xd, block_idx, bsize, TX_4X4,
+                          mode, predictor, pre_stride);
+}
diff --git a/vp9/common/vp9_reconintra.h b/vp9/common/vp9_reconintra.h
index 1a715c3ee..faecd6be7 100644
--- a/vp9/common/vp9_reconintra.h
+++ b/vp9/common/vp9_reconintra.h
@@ -21,4 +21,10 @@ B_PREDICTION_MODE vp9_find_dominant_direction(uint8_t *ptr,
 B_PREDICTION_MODE vp9_find_bpred_context(MACROBLOCKD *xd, int block,
                                          uint8_t *ptr, int stride);
 
+void vp9_predict_intra_block(MACROBLOCKD *xd,
+                            int block_idx,
+                            BLOCK_SIZE_TYPE bsize,
+                            TX_SIZE tx_size,
+                            int mode,
+                            uint8_t *predictor, int pre_stride);
 #endif  // VP9_COMMON_VP9_RECONINTRA_H_
-- 
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