libavcodec/x86/dct32_sse.c File Reference

#include <stdint.h>
#include "libavutil/x86_cpu.h"
#include "libavutil/mem.h"
#include "libavcodec/dsputil.h"
#include "fft.h"

Go to the source code of this file.

Defines
#define	BUTTERFLY(a, b, c, tmp)
#define	BUTTERFLY0(val, mask, cos, tmp, shuf)
	* Same as BUTTERFLY when vectors a and b overlap */
#define	BUTTERFLY2(val, mask, cos, tmp)   BUTTERFLY0(val, mask, cos, tmp, $0x1b)
#define	BUTTERFLY3(val, mask, cos, tmp)   BUTTERFLY0(val, mask, cos, tmp, $0xb1)
Functions
	DECLARE_ALIGNED (16, static const float, b1)[]
	DECLARE_ALIGNED (16, static const int32_t, smask)[4]
void	ff_dct32_float_sse (FFTSample *out, const FFTSample *in)

---

Define Documentation

#define BUTTERFLY	(	a,
		b,
		c,
		tmp		)

Value:

"movaps  %%" #a    ", %%" #tmp  "             \n\t" \
    "subps   %%" #b    ", %%" #a    "             \n\t" \
    "addps   %%" #tmp  ", %%" #b    "             \n\t" \
    "mulps     " #c    ", %%" #a    "             \n\t"

Definition at line 46 of file dct32_sse.c.

Referenced by ff_dct32_float_sse().

#define BUTTERFLY0	(	val,
		mask,
		cos,
		tmp,
		shuf		)

Value:

"movaps  %%" #val  ", %%" #tmp  "             \n\t"                  \
    "shufps    " #shuf ", %%" #val  ",%%" #val "  \n\t"                  \
    "xorps   %%" #mask ", %%" #tmp  "             \n\t" /* flip signs */ \
    "addps   %%" #tmp  ", %%" #val  "             \n\t"                  \
    "mulps   %%" #cos  ", %%" #val  "             \n\t"

* Same as BUTTERFLY when vectors a and b overlap */

Definition at line 53 of file dct32_sse.c.

#define BUTTERFLY2	(	val,
		mask,
		cos,
		tmp		)	BUTTERFLY0(val, mask, cos, tmp, $0x1b)

Definition at line 60 of file dct32_sse.c.

#define BUTTERFLY3	(	val,
		mask,
		cos,
		tmp		)	BUTTERFLY0(val, mask, cos, tmp, $0xb1)

Definition at line 61 of file dct32_sse.c.

Referenced by ff_dct32_float_sse().

---

Function Documentation

DECLARE_ALIGNED	(	16	,
		static const	int32_t,
		smask
	)

DECLARE_ALIGNED	(	16	,
		static const	float,
		b1
	)

void ff_dct32_float_sse	(	FFTSample *	out,
		const FFTSample *	in
	)

Definition at line 63 of file dct32_sse.c.