diff options
Diffstat (limited to 'thirdparty/libtheora/internal.c')
| -rw-r--r-- | thirdparty/libtheora/internal.c | 92 |
1 files changed, 20 insertions, 72 deletions
diff --git a/thirdparty/libtheora/internal.c b/thirdparty/libtheora/internal.c index 0fe4f63e72..afbb6efae7 100644 --- a/thirdparty/libtheora/internal.c +++ b/thirdparty/libtheora/internal.c @@ -11,7 +11,7 @@ ******************************************************************** function: - last mod: $Id: internal.c 16503 2009-08-22 18:14:02Z giles $ + last mod: $Id$ ********************************************************************/ @@ -97,79 +97,29 @@ int oc_ilog(unsigned _v){ -/*The function used to fill in the chroma plane motion vectors for a macro - block when 4 different motion vectors are specified in the luma plane. - This version is for use with chroma decimated in the X and Y directions - (4:2:0). - _cbmvs: The chroma block-level motion vectors to fill in. - _lbmvs: The luma block-level motion vectors.*/ -static void oc_set_chroma_mvs00(oc_mv _cbmvs[4],const oc_mv _lbmvs[4]){ - int dx; - int dy; - dx=_lbmvs[0][0]+_lbmvs[1][0]+_lbmvs[2][0]+_lbmvs[3][0]; - dy=_lbmvs[0][1]+_lbmvs[1][1]+_lbmvs[2][1]+_lbmvs[3][1]; - _cbmvs[0][0]=(signed char)OC_DIV_ROUND_POW2(dx,2,2); - _cbmvs[0][1]=(signed char)OC_DIV_ROUND_POW2(dy,2,2); -} - -/*The function used to fill in the chroma plane motion vectors for a macro - block when 4 different motion vectors are specified in the luma plane. - This version is for use with chroma decimated in the Y direction. - _cbmvs: The chroma block-level motion vectors to fill in. - _lbmvs: The luma block-level motion vectors.*/ -static void oc_set_chroma_mvs01(oc_mv _cbmvs[4],const oc_mv _lbmvs[4]){ - int dx; - int dy; - dx=_lbmvs[0][0]+_lbmvs[2][0]; - dy=_lbmvs[0][1]+_lbmvs[2][1]; - _cbmvs[0][0]=(signed char)OC_DIV_ROUND_POW2(dx,1,1); - _cbmvs[0][1]=(signed char)OC_DIV_ROUND_POW2(dy,1,1); - dx=_lbmvs[1][0]+_lbmvs[3][0]; - dy=_lbmvs[1][1]+_lbmvs[3][1]; - _cbmvs[1][0]=(signed char)OC_DIV_ROUND_POW2(dx,1,1); - _cbmvs[1][1]=(signed char)OC_DIV_ROUND_POW2(dy,1,1); -} - -/*The function used to fill in the chroma plane motion vectors for a macro - block when 4 different motion vectors are specified in the luma plane. - This version is for use with chroma decimated in the X direction (4:2:2). - _cbmvs: The chroma block-level motion vectors to fill in. - _lbmvs: The luma block-level motion vectors.*/ -static void oc_set_chroma_mvs10(oc_mv _cbmvs[4],const oc_mv _lbmvs[4]){ - int dx; - int dy; - dx=_lbmvs[0][0]+_lbmvs[1][0]; - dy=_lbmvs[0][1]+_lbmvs[1][1]; - _cbmvs[0][0]=(signed char)OC_DIV_ROUND_POW2(dx,1,1); - _cbmvs[0][1]=(signed char)OC_DIV_ROUND_POW2(dy,1,1); - dx=_lbmvs[2][0]+_lbmvs[3][0]; - dy=_lbmvs[2][1]+_lbmvs[3][1]; - _cbmvs[2][0]=(signed char)OC_DIV_ROUND_POW2(dx,1,1); - _cbmvs[2][1]=(signed char)OC_DIV_ROUND_POW2(dy,1,1); +void *oc_aligned_malloc(size_t _sz,size_t _align){ + unsigned char *p; + if(_align-1>UCHAR_MAX||(_align&_align-1)||_sz>~(size_t)0-_align)return NULL; + p=(unsigned char *)_ogg_malloc(_sz+_align); + if(p!=NULL){ + int offs; + offs=((p-(unsigned char *)0)-1&_align-1); + p[offs]=offs; + p+=offs+1; + } + return p; } -/*The function used to fill in the chroma plane motion vectors for a macro - block when 4 different motion vectors are specified in the luma plane. - This version is for use with no chroma decimation (4:4:4). - _cbmvs: The chroma block-level motion vectors to fill in. - _lmbmv: The luma macro-block level motion vector to fill in for use in - prediction. - _lbmvs: The luma block-level motion vectors.*/ -static void oc_set_chroma_mvs11(oc_mv _cbmvs[4],const oc_mv _lbmvs[4]){ - memcpy(_cbmvs,_lbmvs,4*sizeof(_lbmvs[0])); +void oc_aligned_free(void *_ptr){ + unsigned char *p; + p=(unsigned char *)_ptr; + if(p!=NULL){ + int offs; + offs=*--p; + _ogg_free(p-offs); + } } -/*A table of functions used to fill in the chroma plane motion vectors for a - macro block when 4 different motion vectors are specified in the luma - plane.*/ -const oc_set_chroma_mvs_func OC_SET_CHROMA_MVS_TABLE[TH_PF_NFORMATS]={ - (oc_set_chroma_mvs_func)oc_set_chroma_mvs00, - (oc_set_chroma_mvs_func)oc_set_chroma_mvs01, - (oc_set_chroma_mvs_func)oc_set_chroma_mvs10, - (oc_set_chroma_mvs_func)oc_set_chroma_mvs11 -}; - - void **oc_malloc_2d(size_t _height,size_t _width,size_t _sz){ size_t rowsz; @@ -181,7 +131,6 @@ void **oc_malloc_2d(size_t _height,size_t _width,size_t _sz){ datsz=rowsz*_height; /*Alloc array and row pointers.*/ ret=(char *)_ogg_malloc(datsz+colsz); - if(ret==NULL)return NULL; /*Initialize the array.*/ if(ret!=NULL){ size_t i; @@ -204,7 +153,6 @@ void **oc_calloc_2d(size_t _height,size_t _width,size_t _sz){ datsz=rowsz*_height; /*Alloc array and row pointers.*/ ret=(char *)_ogg_calloc(datsz+colsz,1); - if(ret==NULL)return NULL; /*Initialize the array.*/ if(ret!=NULL){ size_t i; |