[FFmpeg-cvslog] rv34: move 4x4 dequant to RV34DSPContext

[Mans Rullgard]

ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Mon Dec 12 23:21:39 2011 +0000| [40901fc14e1ae1a1074a70931a133b2bc2604a1c] | committer: Mans Rullgard

rv34: move 4x4 dequant to RV34DSPContext

Signed-off-by: Mans Rullgard <mans at mansr.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=40901fc14e1ae1a1074a70931a133b2bc2604a1c
---

 libavcodec/rv34.c    |   18 ++----------------
 libavcodec/rv34dsp.c |   16 ++++++++++++++++
 libavcodec/rv34dsp.h |    1 +
 3 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 295a633..7023ec1 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -289,20 +289,6 @@ static inline void rv34_decode_block(DCTELEM *dst, GetBitContext *gb, RV34VLC *r
 }
 
 /**
- * Dequantize ordinary 4x4 block.
- * @todo optimize
- */
-static inline void rv34_dequant4x4(DCTELEM *block, int Qdc, int Q)
-{
-    int i, j;
-
-    block[0] = (block[0] * Qdc + 8) >> 4;
-    for(i = 0; i < 4; i++)
-        for(j = !i; j < 4; j++)
-            block[j + i*8] = (block[j + i*8] * Q + 8) >> 4;
-}
-
-/**
  * Dequantize 4x4 block of DC values for 16x16 macroblock.
  * @todo optimize
  */
@@ -1159,7 +1145,7 @@ static int rv34_decode_macroblock(RV34DecContext *r, int8_t *intra_types)
         blkoff = ((i & 1) << 2) + ((i & 4) << 3);
         if(cbp & 1)
             rv34_decode_block(s->block[blknum] + blkoff, gb, r->cur_vlcs, r->luma_vlc, 0);
-        rv34_dequant4x4(s->block[blknum] + blkoff, rv34_qscale_tab[s->qscale],rv34_qscale_tab[s->qscale]);
+        r->rdsp.rv34_dequant4x4(s->block[blknum] + blkoff, rv34_qscale_tab[s->qscale],rv34_qscale_tab[s->qscale]);
         if(r->is16) //FIXME: optimize
             s->block[blknum][blkoff] = block16[(i & 3) | ((i & 0xC) << 1)];
         r->rdsp.rv34_inv_transform_tab[0](s->block[blknum] + blkoff);
@@ -1171,7 +1157,7 @@ static int rv34_decode_macroblock(RV34DecContext *r, int8_t *intra_types)
         blknum = ((i & 4) >> 2) + 4;
         blkoff = ((i & 1) << 2) + ((i & 2) << 4);
         rv34_decode_block(s->block[blknum] + blkoff, gb, r->cur_vlcs, r->chroma_vlc, 1);
-        rv34_dequant4x4(s->block[blknum] + blkoff, rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]],rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]);
+        r->rdsp.rv34_dequant4x4(s->block[blknum] + blkoff, rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]],rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]);
         r->rdsp.rv34_inv_transform_tab[0](s->block[blknum] + blkoff);
     }
     if (IS_INTRA(s->current_picture_ptr->f.mb_type[mb_pos]))
diff --git a/libavcodec/rv34dsp.c b/libavcodec/rv34dsp.c
index 1f4cea8..974bf9e 100644
--- a/libavcodec/rv34dsp.c
+++ b/libavcodec/rv34dsp.c
@@ -100,10 +100,26 @@ static void rv34_inv_transform_noround_c(DCTELEM *block){
 /** @} */ // transform
 
 
+/**
+ * Dequantize ordinary 4x4 block.
+ */
+void ff_rv34_dequant4x4_neon(DCTELEM *block, int Qdc, int Q);
+static void rv34_dequant4x4_c(DCTELEM *block, int Qdc, int Q)
+{
+    int i, j;
+
+    block[0] = (block[0] * Qdc + 8) >> 4;
+    for (i = 0; i < 4; i++)
+        for (j = !i; j < 4; j++)
+            block[j + i*8] = (block[j + i*8] * Q + 8) >> 4;
+}
+
 av_cold void ff_rv34dsp_init(RV34DSPContext *c, DSPContext* dsp) {
     c->rv34_inv_transform_tab[0] = rv34_inv_transform_c;
     c->rv34_inv_transform_tab[1] = rv34_inv_transform_noround_c;
 
+    c->rv34_dequant4x4 = rv34_dequant4x4_c;
+
     if (HAVE_NEON)
         ff_rv34dsp_init_neon(c, dsp);
 }
diff --git a/libavcodec/rv34dsp.h b/libavcodec/rv34dsp.h
index 695af06..cf6e14d 100644
--- a/libavcodec/rv34dsp.h
+++ b/libavcodec/rv34dsp.h
@@ -48,6 +48,7 @@ typedef struct RV34DSPContext {
     h264_chroma_mc_func avg_chroma_pixels_tab[3];
     rv40_weight_func rv40_weight_pixels_tab[2];
     rv34_inv_transform_func rv34_inv_transform_tab[2];
+    void (*rv34_dequant4x4)(DCTELEM *block, int Qdc, int Q);
     rv40_loop_filter_func rv40_h_loop_filter;
     rv40_loop_filter_func rv40_v_loop_filter;
 } RV34DSPContext;