idct_sh4.c File Reference

#include "dsputil_sh4.h"
#include "sh4.h"

Go to the source code of this file.

Macros
#define	c1   1.38703984532214752434 /* sqrt(2)*cos(1*pi/16) */
#define	c2   1.30656296487637657577 /* sqrt(2)*cos(2*pi/16) */
#define	c3   1.17587560241935884520 /* sqrt(2)*cos(3*pi/16) */
#define	c4   1.00000000000000000000 /* sqrt(2)*cos(4*pi/16) */
#define	c5   0.78569495838710234903 /* sqrt(2)*cos(5*pi/16) */
#define	c6   0.54119610014619712324 /* sqrt(2)*cos(6*pi/16) */
#define	c7   0.27589937928294311353 /* sqrt(2)*cos(7*pi/16) */
#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	ff_idct_sh4 (int16_t *block)

Variables
static const float	even_table []
static const float	odd_table []

Macro Definition Documentation

#define c1   1.38703984532214752434 /* sqrt(2)*cos(1*pi/16) */

Definition at line 26 of file idct_sh4.c.

Referenced by av_strcasecmp(), av_strncasecmp(), close_connection(), compare_fields(), compute_status(), decode_frame(), decorrelate(), dxt1_decode_pixels(), fft_ref_init(), fill_picture_rgb(), http_receive_data(), idct4col_add(), idct4col_put(), idct4row(), imdct36_mips_float(), pixel_color7_slow(), ps_tableinit(), qpeg_decode_intra(), and reverse_matrixing().

#define c2   1.30656296487637657577 /* sqrt(2)*cos(2*pi/16) */

Definition at line 27 of file idct_sh4.c.

Referenced by av_strcasecmp(), av_strncasecmp(), compare_fields(), decorrelate(), ff_urldecode(), fill_picture_rgb(), idct4col_add(), idct4col_put(), idct4row(), imdct36_mips_float(), postProcess_TMPL(), process_frame_uyvy422(), process_frame_yuv420p(), process_frame_yuv422p(), ps_tableinit(), qpel_motion_search(), and reverse_matrixing().

#define c3   1.17587560241935884520 /* sqrt(2)*cos(3*pi/16) */

Definition at line 28 of file idct_sh4.c.

Referenced by ff_urldecode(), idct4col_add(), idct4col_put(), idct4row(), imdct36_mips_float(), process_frame_uyvy422(), process_frame_yuv420p(), and process_frame_yuv422p().

#define c4   1.00000000000000000000 /* sqrt(2)*cos(4*pi/16) */

Definition at line 29 of file idct_sh4.c.

Referenced by idct248_ref(), imdct36_mips_float(), process_frame_uyvy422(), process_frame_yuv420p(), and process_frame_yuv422p().

#define c5   0.78569495838710234903 /* sqrt(2)*cos(5*pi/16) */

Definition at line 30 of file idct_sh4.c.

Referenced by imdct36_mips_float(), process_frame_uyvy422(), process_frame_yuv420p(), and process_frame_yuv422p().

#define c6   0.54119610014619712324 /* sqrt(2)*cos(6*pi/16) */

Definition at line 31 of file idct_sh4.c.

Referenced by imdct36_mips_float(), process_frame_uyvy422(), process_frame_yuv420p(), and process_frame_yuv422p().

#define c7   0.27589937928294311353 /* sqrt(2)*cos(7*pi/16) */

Definition at line 32 of file idct_sh4.c.

Referenced by imdct36_mips_float(), process_frame_uyvy422(), process_frame_yuv420p(), process_frame_yuv422p(), and write_pixel_15_7().

#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 56 of file idct_sh4.c.

Referenced by ff_idct_sh4().

#define ftrv

(

)

Value:

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

Definition at line 74 of file idct_sh4.c.

Referenced by ff_idct_sh4().

#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 78 of file idct_sh4.c.

Referenced by ff_idct_sh4().

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

Definition at line 84 of file idct_sh4.c.

Referenced by ff_idct_sh4().

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

Referenced by ff_idct_sh4().

Function Documentation

void ff_idct_sh4

(

int16_t *

block

)

Definition at line 91 of file idct_sh4.c.

Referenced by ff_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 ff_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 ff_idct_sh4().