1 files changed, 116 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp8/encoder/encodeintra.c b/media/libvpx/libvpx/vp8/encoder/encodeintra.c
new file mode 100644
index 0000000000..7d448c0ea0
--- /dev/null
+++ b/media/libvpx/libvpx/vp8/encoder/encodeintra.c
@@ -0,0 +1,116 @@
+/*
+ *  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_config.h"
+#include "vp8_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
+#include "vp8/encoder/quantize.h"
+#include "vp8/common/reconintra.h"
+#include "vp8/common/reconintra4x4.h"
+#include "encodemb.h"
+#include "vp8/common/invtrans.h"
+#include "encodeintra.h"
+
+int vp8_encode_intra(MACROBLOCK *x, int use_dc_pred) {
+  int i;
+  int intra_pred_var = 0;
+
+  if (use_dc_pred) {
+    x->e_mbd.mode_info_context->mbmi.mode = DC_PRED;
+    x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
+    x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
+
+    vp8_encode_intra16x16mby(x);
+
+    vp8_inverse_transform_mby(&x->e_mbd);
+  } else {
+    for (i = 0; i < 16; ++i) {
+      x->e_mbd.block[i].bmi.as_mode = B_DC_PRED;
+      vp8_encode_intra4x4block(x, i);
+    }
+  }
+
+  intra_pred_var = vpx_get_mb_ss(x->src_diff);
+
+  return intra_pred_var;
+}
+
+void vp8_encode_intra4x4block(MACROBLOCK *x, int ib) {
+  BLOCKD *b = &x->e_mbd.block[ib];
+  BLOCK *be = &x->block[ib];
+  int dst_stride = x->e_mbd.dst.y_stride;
+  unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
+  unsigned char *Above = dst - dst_stride;
+  unsigned char *yleft = dst - 1;
+  unsigned char top_left = Above[-1];
+
+  vp8_intra4x4_predict(Above, yleft, dst_stride, b->bmi.as_mode, b->predictor,
+                       16, top_left);
+
+  vp8_subtract_b(be, b, 16);
+
+  x->short_fdct4x4(be->src_diff, be->coeff, 32);
+
+  x->quantize_b(be, b);
+
+  if (*b->eob > 1) {
+    vp8_short_idct4x4llm(b->dqcoeff, b->predictor, 16, dst, dst_stride);
+  } else {
+    vp8_dc_only_idct_add(b->dqcoeff[0], b->predictor, 16, dst, dst_stride);
+  }
+}
+
+void vp8_encode_intra4x4mby(MACROBLOCK *mb) {
+  int i;
+
+  MACROBLOCKD *xd = &mb->e_mbd;
+  intra_prediction_down_copy(xd, xd->dst.y_buffer - xd->dst.y_stride + 16);
+
+  for (i = 0; i < 16; ++i) vp8_encode_intra4x4block(mb, i);
+  return;
+}
+
+void vp8_encode_intra16x16mby(MACROBLOCK *x) {
+  BLOCK *b = &x->block[0];
+  MACROBLOCKD *xd = &x->e_mbd;
+
+  vp8_build_intra_predictors_mby_s(xd, xd->dst.y_buffer - xd->dst.y_stride,
+                                   xd->dst.y_buffer - 1, xd->dst.y_stride,
+                                   xd->dst.y_buffer, xd->dst.y_stride);
+
+  vp8_subtract_mby(x->src_diff, *(b->base_src), b->src_stride, xd->dst.y_buffer,
+                   xd->dst.y_stride);
+
+  vp8_transform_intra_mby(x);
+
+  vp8_quantize_mby(x);
+
+  if (x->optimize) vp8_optimize_mby(x);
+}
+
+void vp8_encode_intra16x16mbuv(MACROBLOCK *x) {
+  MACROBLOCKD *xd = &x->e_mbd;
+
+  vp8_build_intra_predictors_mbuv_s(xd, xd->dst.u_buffer - xd->dst.uv_stride,
+                                    xd->dst.v_buffer - xd->dst.uv_stride,
+                                    xd->dst.u_buffer - 1, xd->dst.v_buffer - 1,
+                                    xd->dst.uv_stride, xd->dst.u_buffer,
+                                    xd->dst.v_buffer, xd->dst.uv_stride);
+
+  vp8_subtract_mbuv(x->src_diff, x->src.u_buffer, x->src.v_buffer,
+                    x->src.uv_stride, xd->dst.u_buffer, xd->dst.v_buffer,
+                    xd->dst.uv_stride);
+
+  vp8_transform_mbuv(x);
+
+  vp8_quantize_mbuv(x);
+
+  if (x->optimize) vp8_optimize_mbuv(x);
+}