libavcodec/sh4/idct_sh4.c File Reference

#include "libavcodec/dsputil.h"
#include "sh4.h"

Go to the source code of this file.

Defines
#define	c1   1.38703984532214752434
#define	c2   1.30656296487637657577
#define	c3   1.17587560241935884520
#define	c4   1.00000000000000000000
#define	c5   0.78569495838710234903
#define	c6   0.54119610014619712324
#define	c7   0.27589937928294311353
#define	load_matrix(table)
#define	ftrv()
#define	DEFREG
#define	DESCALE(x, n)   (x)*(1.0f/(1<<(n)))
#define	OA(fblock, ofs)   *(float*)((char*)fblock + ofs)
Functions
void	idct_sh4 (DCTELEM *block)
Variables
static const float	even_table []
static const float	odd_table []

---

Define Documentation

#define c1   1.38703984532214752434

Definition at line 26 of file idct_sh4.c.

Referenced by close_connection(), compute_status(), decode_frame(), dxt1_decode_pixels(), ff_fft_calc_altivec(), ff_fft_init(), fft_ref_init(), float_to_int16_interleave_altivec(), http_receive_data(), idct4col_add(), idct4col_put(), idct4row(), qpeg_decode_intra(), and reverseMatrixing().

#define c2   1.30656296487637657577

Definition at line 27 of file idct_sh4.c.

Referenced by ff_fft_calc_altivec(), idct4col_add(), idct4col_put(), idct4row(), postProcess_TMPL(), qpel_motion_search(), and reverseMatrixing().

#define c3   1.17587560241935884520

Definition at line 28 of file idct_sh4.c.

Referenced by idct4col_add(), idct4col_put(), and idct4row().

#define c4   1.00000000000000000000

Definition at line 29 of file idct_sh4.c.

Referenced by idct248_ref().

#define c5   0.78569495838710234903

Definition at line 30 of file idct_sh4.c.

#define c6   0.54119610014619712324

Definition at line 31 of file idct_sh4.c.

#define c7   0.27589937928294311353

Definition at line 32 of file idct_sh4.c.

#define DEFREG

Value:

register float fr0 __asm__("fr0"); \
        register float fr1 __asm__("fr1"); \
        register float fr2 __asm__("fr2"); \
        register float fr3 __asm__("fr3")

Definition at line 80 of file idct_sh4.c.

Referenced by idct_sh4().

#define DESCALE	(	x,
		n		)	(x)*(1.0f/(1<<(n)))

Definition at line 123 of file idct_sh4.c.

 

#define ftrv

(

)

Value:

__asm__ volatile("ftrv xmtrx,fv0" \
                : "+f"(fr0),"+f"(fr1),"+f"(fr2),"+f"(fr3));

Definition at line 76 of file idct_sh4.c.

Referenced by idct_sh4().

#define load_matrix

(

table

)

Value:

do { \
        const float *t = table; \
        __asm__ volatile( \
        "       fschg\n" \
        "       fmov   @%0+,xd0\n" \
        "       fmov   @%0+,xd2\n" \
        "       fmov   @%0+,xd4\n" \
        "       fmov   @%0+,xd6\n" \
        "       fmov   @%0+,xd8\n" \
        "       fmov   @%0+,xd10\n" \
        "       fmov   @%0+,xd12\n" \
        "       fmov   @%0+,xd14\n" \
        "       fschg\n" \
        : "+r"(t) \
        ); \
    } while (0)

Definition at line 58 of file idct_sh4.c.

Referenced by idct_sh4().

#define OA	(	fblock,
		ofs		)	*(float*)((char*)fblock + ofs)

Referenced by idct_sh4().

---

Function Documentation

void idct_sh4

(

DCTELEM *

block

)

Definition at line 134 of file idct_sh4.c.

Referenced by dsputil_init_sh4(), idct_add(), and idct_put().

---

Variable Documentation

const float even_table[] [static]

Initial value:

 {
        c4, c4, c4, c4,
        c2, c6,-c6,-c2,
        c4,-c4,-c4, c4,
        c6,-c2, c2,-c6
}

Definition at line 34 of file idct_sh4.c.

Referenced by idct_sh4().

const float odd_table[] [static]

Initial value:

 {
        c1, c3, c5, c7,
        c3,-c7,-c1,-c5,
        c5,-c1, c7, c3,
        c7,-c5, c3,-c1
}

Definition at line 41 of file idct_sh4.c.

Referenced by idct_sh4().