mirror of
https://github.com/godotengine/godot.git
synced 2024-12-21 10:25:24 +08:00
27 lines
794 B
C++
27 lines
794 B
C++
#if !defined(_enquant_H)
|
|
# define _enquant_H (1)
|
|
# include "quant.h"
|
|
|
|
typedef struct oc_iquant oc_iquant;
|
|
|
|
#define OC_QUANT_MAX_LOG (OC_Q57(OC_STATIC_ILOG_32(OC_QUANT_MAX)-1))
|
|
|
|
/*Used to compute x/d via ((x*m>>16)+x>>l)+(x<0))
|
|
(i.e., one 16x16->16 mul, 2 shifts, and 2 adds).
|
|
This is not an approximation; for 16-bit x and d, it is exact.*/
|
|
struct oc_iquant{
|
|
ogg_int16_t m;
|
|
ogg_int16_t l;
|
|
};
|
|
|
|
|
|
|
|
int oc_quant_params_clone(th_quant_info *_dst,const th_quant_info *_src);
|
|
void oc_quant_params_pack(oggpack_buffer *_opb,const th_quant_info *_qinfo);
|
|
void oc_iquant_init(oc_iquant *_this,ogg_uint16_t _d);
|
|
void oc_enquant_qavg_init(ogg_int64_t _log_qavg[2][64],
|
|
ogg_int16_t _log_plq[64][3][2],ogg_uint16_t _pl_rd_scale[2][64][2],
|
|
ogg_uint16_t *_dequant[64][3][2],int _pixel_fmt);
|
|
|
|
#endif
|