Rename rotate_buffer() to copy_and_dup() and doxy it

[ffmpeg] / libavcodec / dsputil.c

diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index ee02062479a03540909adf26d12955c711e19b9a..80efd07825bf026558abc0f16052592002ddde17 100644 (file)
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -151,6 +151,8 @@ static const uint8_t simple_mmx_permutation[64]={
         0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
 };
 
+static const uint8_t idct_sse2_row_perm[8] = {0, 4, 1, 5, 2, 6, 3, 7};
+
 void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
     int i;
     int end;
@@ -3696,7 +3698,7 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int
     DECLARE_ALIGNED_8 (uint64_t, aligned_bak[stride]);
     DCTELEM * const temp= (DCTELEM*)aligned_temp;
     uint8_t * const bak= (uint8_t*)aligned_bak;
-    int i, last, run, bits, level, distoration, start_i;
+    int i, last, run, bits, level, distortion, start_i;
     const int esc_length= s->ac_esc_length;
     uint8_t * length;
     uint8_t * last_length;
@@ -3763,9 +3765,9 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int
 
     s->dsp.idct_add(bak, stride, temp);
 
-    distoration= s->dsp.sse[1](NULL, bak, src1, stride, 8);
+    distortion= s->dsp.sse[1](NULL, bak, src1, stride, 8);
 
-    return distoration + ((bits*s->qscale*s->qscale*109 + 64)>>7);
+    return distortion + ((bits*s->qscale*s->qscale*109 + 64)>>7);
 }
 
 static int bit8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
@@ -4476,6 +4478,10 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
         for(i=0; i<64; i++)
             c->idct_permutation[i]= (i&0x24) | ((i&3)<<3) | ((i>>3)&3);
         break;
+    case FF_SSE2_IDCT_PERM:
+        for(i=0; i<64; i++)
+            c->idct_permutation[i]= (i&0x38) | idct_sse2_row_perm[i&7];
+        break;
     default:
         av_log(avctx, AV_LOG_ERROR, "Internal error, IDCT permutation not set\n");
     }