Adds 8-, 9- and 10-bit versions of some of the functions used by the h264 decoder.

This patch lets e.g. dsputil_init chose dsp functions with respect to
the bit depth to decode. The naming scheme of bit depth dependent
functions is <base name>_<bit depth>[_<prefix>] (i.e. the old
clear_blocks_c is now named clear_blocks_8_c).

Note: Some of the functions for high bit depth is not dependent on the
bit depth, but only on the pixel size. This leaves some room for
optimizing binary size.

Preparatory patch for high bit depth h264 decoding support.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

2 files changed, 10 insertions, 0 deletions

diff --git a/libavcodec/sh4/dsputil_align.c b/libavcodec/sh4/dsputil_align.c
index 9e7efdec7a..93b663894a 100644
--- a/libavcodec/sh4/dsputil_align.c
+++ b/libavcodec/sh4/dsputil_align.c
@@ -333,6 +333,9 @@ DEFFUNC(avg,no_rnd,xy,16,OP_XY,PACK)
 
 void dsputil_init_align(DSPContext* c, AVCodecContext *avctx)
 {
+        const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
+
+        if (!h264_high_depth) {
         c->put_pixels_tab[0][0] = put_rnd_pixels16_o;
         c->put_pixels_tab[0][1] = put_rnd_pixels16_x;
         c->put_pixels_tab[0][2] = put_rnd_pixels16_y;
@@ -368,6 +371,7 @@ void dsputil_init_align(DSPContext* c, AVCodecContext *avctx)
         c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels8_x;
         c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels8_y;
         c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels8_xy;
+        }
 
 #ifdef QPEL
 
@@ -401,20 +405,24 @@ void dsputil_init_align(DSPContext* c, AVCodecContext *avctx)
     dspfunc(avg_qpel, 1, 8);
     /* dspfunc(avg_no_rnd_qpel, 1, 8); */
 
+    if (!h264_high_depth) {
     dspfunc(put_h264_qpel, 0, 16);
     dspfunc(put_h264_qpel, 1, 8);
     dspfunc(put_h264_qpel, 2, 4);
     dspfunc(avg_h264_qpel, 0, 16);
     dspfunc(avg_h264_qpel, 1, 8);
     dspfunc(avg_h264_qpel, 2, 4);
+    }
 
 #undef dspfunc
+    if (!h264_high_depth) {
     c->put_h264_chroma_pixels_tab[0]= put_h264_chroma_mc8_sh4;
     c->put_h264_chroma_pixels_tab[1]= put_h264_chroma_mc4_sh4;
     c->put_h264_chroma_pixels_tab[2]= put_h264_chroma_mc2_sh4;
     c->avg_h264_chroma_pixels_tab[0]= avg_h264_chroma_mc8_sh4;
     c->avg_h264_chroma_pixels_tab[1]= avg_h264_chroma_mc4_sh4;
     c->avg_h264_chroma_pixels_tab[2]= avg_h264_chroma_mc2_sh4;
+    }
 
     c->put_mspel_pixels_tab[0]= put_mspel8_mc00_sh4;
     c->put_mspel_pixels_tab[1]= put_mspel8_mc10_sh4;
diff --git a/libavcodec/sh4/dsputil_sh4.c b/libavcodec/sh4/dsputil_sh4.c
index ec06e249c7..219bb4c353 100644
--- a/libavcodec/sh4/dsputil_sh4.c
+++ b/libavcodec/sh4/dsputil_sh4.c
@@ -92,8 +92,10 @@ static void idct_add(uint8_t *dest, int line_size, DCTELEM *block)
 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx)
 {
         const int idct_algo= avctx->idct_algo;
+        const int h264_high_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
         dsputil_init_align(c,avctx);
 
+        if (!h264_high_depth)
         c->clear_blocks = clear_blocks_sh4;
         if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_SH4){
                 c->idct_put = idct_put;