shithub: libvpx

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Allow macroblock_plane to have its own rounding buffer

Add 8 bytes buffer to macroblock_plane to support rounding factor.

Change-Id: I3751689e4449c0caea28d3acf6cd17d7f39508ed

--- a/vp9/encoder/vp9_block.h

+++ b/vp9/encoder/vp9_block.h

@@ -34,8 +34,8 @@

   struct buf_2d src;

   // Quantizer setings

+  DECLARE_ALIGNED(16, int16_t, round_fp[8]);

   int16_t *quant_fp;

-  int16_t *round_fp;

   int16_t *quant;

   int16_t *quant_shift;

   int16_t *zbin;

--- a/vp9/encoder/vp9_quantize.c

+++ b/vp9/encoder/vp9_quantize.c

@@ -288,12 +288,12 @@

   // Y

   x->plane[0].quant = quants->y_quant[qindex];

   x->plane[0].quant_fp = quants->y_quant_fp[qindex];

-  x->plane[0].round_fp = quants->y_round_fp[qindex];

+  memcpy(x->plane[0].round_fp, quants->y_round_fp[qindex],

+         8 * sizeof(*(x->plane[0].round_fp)));

   x->plane[0].quant_shift = quants->y_quant_shift[qindex];

   x->plane[0].zbin = quants->y_zbin[qindex];

   x->plane[0].round = quants->y_round[qindex];

   xd->plane[0].dequant = cpi->y_dequant[qindex];

-

   x->plane[0].quant_thred[0] = x->plane[0].zbin[0] * x->plane[0].zbin[0];

   x->plane[0].quant_thred[1] = x->plane[0].zbin[1] * x->plane[0].zbin[1];

@@ -301,12 +301,12 @@

   for (i = 1; i < 3; i++) {

     x->plane[i].quant = quants->uv_quant[qindex];

     x->plane[i].quant_fp = quants->uv_quant_fp[qindex];

-    x->plane[i].round_fp = quants->uv_round_fp[qindex];

+    memcpy(x->plane[i].round_fp, quants->uv_round_fp[qindex],

+           8 * sizeof(*(x->plane[i].round_fp)));

     x->plane[i].quant_shift = quants->uv_quant_shift[qindex];

     x->plane[i].zbin = quants->uv_zbin[qindex];

     x->plane[i].round = quants->uv_round[qindex];

     xd->plane[i].dequant = cpi->uv_dequant[qindex];

-

     x->plane[i].quant_thred[0] = x->plane[i].zbin[0] * x->plane[i].zbin[0];

     x->plane[i].quant_thred[1] = x->plane[i].zbin[1] * x->plane[i].zbin[1];

   }