uops_tmpl.c File Reference

#include <libavutil/bswap.h>
#include "uops_tmpl.h"

Go to the source code of this file.

Data Structures
struct	fn

Macros
#define	BIT_DEPTH   8
	Copyright (C) 2026 Niklas Haas. More...
#define	PIXEL_MAX   0xFFu
#define	pixel_t   uint8_t
#define	inter_t   int32_t
#define	PX   U8
#define	px   u8
#define	DECL_PERMUTE(DUMMY, NAME, TYPE, UOP, MASK, IDX0, IDX1, IDX2, IDX3)
#define	DECL_COPY(DUMMY, NAME, TYPE, UOP, MASK, IDX0, IDX1, IDX2, IDX3)
#define	DECL_CAST(DST, dst)
#define	ONE(N)   SWS_COMP_TEST(one, N)
#define	ZERO(N)   SWS_COMP_TEST(zero, N)
#define	LIN_VAL(I, J, val)   ((one & SWS_MASK(I, J)) ? (val) : c.m[I][J] * (val))
#define	LIN_ROW(I, var)

Functions
	DECL_READ (read_planar, const SwsCompMask mask)
	DECL_READ (read_packed, const SwsCompMask mask)
	DECL_WRITE (write_planar, const SwsCompMask mask)
	DECL_WRITE (write_packed, const SwsCompMask mask)
	DECL_READ (read_bit, const SwsCompMask mask)
	DECL_READ (read_nibble, const SwsCompMask mask)
	DECL_WRITE (write_bit, const SwsCompMask mask)
	DECL_WRITE (write_nibble, const SwsCompMask mask)
	DECL_SETUP (setup_filter_v, params, out)
	DECL_READ (read_planar_fv, const SwsCompMask mask, const SwsPixelType type)
	DECL_SETUP (setup_filter_h, params, out)
	DECL_READ (read_planar_fh, const SwsCompMask mask, const SwsPixelType type)
	DECL_FUNC (lshift, const SwsCompMask mask, const uint8_t amount)
	DECL_FUNC (rshift, const SwsCompMask mask, const uint8_t amount)
	DECL_FUNC (expand_bit, const SwsCompMask mask)
	DECL_FUNC (expand_pair, const SwsCompMask mask)
	DECL_FUNC (expand_quad, const SwsCompMask mask)
	DECL_FUNC (unpack, const SwsCompMask mask, const uint8_t bx, const uint8_t by, const uint8_t bz, const uint8_t bw)
	DECL_FUNC (pack, const SwsCompMask mask, const uint8_t bx, const uint8_t by, const uint8_t bz, const uint8_t bw)
	DECL_FUNC (clear, const SwsCompMask mask, const SwsCompMask one, const SwsCompMask zero)
	DECL_FUNC (scale, const SwsCompMask mask)
	DECL_FUNC (add, const SwsCompMask mask)
	DECL_FUNC (min, const SwsCompMask mask)
	DECL_FUNC (max, const SwsCompMask mask)
	DECL_SETUP (setup_dither, params, out)
	DECL_FUNC (dither, const SwsCompMask mask, const uint8_t off0, const uint8_t off1, const uint8_t off2, const uint8_t off3, const uint8_t size_log2)
	DECL_SETUP (setup_linear, params, out)
	DECL_FUNC (linear, const SwsCompMask mask, const uint32_t one, const uint32_t zero)
	Fully general case for a 5x5 linear affine transformation. More...

Macro Definition Documentation

BIT_DEPTH

#define BIT_DEPTH   8

Copyright (C) 2026 Niklas Haas.

This file is part of FFmpeg.

FFmpeg is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

FFmpeg is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with FFmpeg; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Definition at line 26 of file uops_tmpl.c.

PIXEL_MAX

#define PIXEL_MAX   0xFFu

Definition at line 50 of file uops_tmpl.c.

pixel_t

#define pixel_t   uint8_t

Definition at line 51 of file uops_tmpl.c.

inter_t

#define inter_t   int32_t

Definition at line 52 of file uops_tmpl.c.

PX

#define PX   U8

Definition at line 53 of file uops_tmpl.c.

px

#define px   u8

Definition at line 54 of file uops_tmpl.c.

DECL_PERMUTE

#define DECL_PERMUTE	(		DUMMY,
			NAME,
			TYPE,
			UOP,
			MASK,
			IDX0,
			IDX1,
			IDX2,
			IDX3
	)

Value:

    static void NAME##_c(SwsOpIter *restrict iter,                              \
                         const SwsOpImpl *restrict impl,                        \
                         void *restrict in0, void *restrict in1,                \
                         void *restrict in2, void *restrict in3)                \
    {                                                                           \
        CONTINUE(in##IDX0, in##IDX1, in##IDX2, in##IDX3);                       \
    }

Definition at line 344 of file uops_tmpl.c.

DECL_COPY

#define DECL_COPY	(		DUMMY,
			NAME,
			TYPE,
			UOP,
			MASK,
			IDX0,
			IDX1,
			IDX2,
			IDX3
	)

Value:

    static void NAME##_c(SwsOpIter *restrict iter,                              \
                         const SwsOpImpl *restrict impl,                        \
                         void *restrict in0, void *restrict in1,                \
                         void *restrict in2, void *restrict in3)                \
    {                                                                           \
        const SwsCompMask mask = (MASK);                                        \
        block_t x, y, z, w;                                                     \
                                                                                \
        if (X) memcpy(&x.px, in##IDX0, SIZEOF_BLOCK);                           \
        if (Y) memcpy(&y.px, in##IDX1, SIZEOF_BLOCK);                           \
        if (Z) memcpy(&z.px, in##IDX2, SIZEOF_BLOCK);                           \
        if (W) memcpy(&w.px, in##IDX3, SIZEOF_BLOCK);                           \
                                                                                \
        CONTINUE(X ? &x : in0, Y ? &y : in1, Z ? &z : in2, W ? &w : in3);       \
    }

Definition at line 353 of file uops_tmpl.c.

DECL_CAST

#define DECL_CAST	(		DST,
			dst
	)

Value:

    DECL_FUNC(to_##dst, const SwsCompMask mask)                                 \
    {                                                                           \
        block_t xx, yy, zz, ww;                                                 \
                                                                                \
        SWS_LOOP                                                                \
        for (int i = 0; i < SWS_BLOCK_SIZE; i++) {                              \
            if (X) xx.dst[i] = x[i];                                            \
            if (Y) yy.dst[i] = y[i];                                            \
            if (Z) zz.dst[i] = z[i];                                            \
            if (W) ww.dst[i] = w[i];                                            \
        }                                                                       \
                                                                                \
        CONTINUE(&xx, &yy, &zz, &ww);                                           \
    }                                                                           \
                                                                                \
    SWS_FOR(PX, TO_##DST, DECL_IMPL, to_##dst)                                  \
    SWS_FOR_STRUCT(PX, TO_##DST, DECL_ENTRY)

Definition at line 379 of file uops_tmpl.c.

ONE

#define ONE

(

N

)

SWS_COMP_TEST(one, N)

ZERO

#define ZERO

(

N

)

SWS_COMP_TEST(zero, N)

LIN_VAL

#define LIN_VAL	(		I,
			J,
			val
	)		((one & SWS_MASK(I, J)) ? (val) : c.m[I][J] * (val))

LIN_ROW

#define LIN_ROW	(		I,
			var
	)

Value:

    do {                                    \
    var[i] = (zero & SWS_MASK(I, 4)) ? 0 : c.k[I];              \
    if (!(zero & SWS_MASK(I, 0))) var[i] += LIN_VAL(I, 0, xx);  \
    if (!(zero & SWS_MASK(I, 1))) var[i] += LIN_VAL(I, 1, yy);  \
    if (!(zero & SWS_MASK(I, 2))) var[i] += LIN_VAL(I, 2, zz);  \
    if (!(zero & SWS_MASK(I, 3))) var[i] += LIN_VAL(I, 3, ww);  \
} while (0)

Function Documentation

DECL_READ() [1/6]

DECL_READ	(	read_planar	,
		const SwsCompMask	mask
	)

Definition at line 63 of file uops_tmpl.c.

DECL_READ() [2/6]

DECL_READ	(	read_packed	,
		const SwsCompMask	mask
	)

Definition at line 81 of file uops_tmpl.c.

DECL_WRITE() [1/4]

DECL_WRITE	(	write_planar	,
		const SwsCompMask	mask
	)

Definition at line 97 of file uops_tmpl.c.

DECL_WRITE() [2/4]

DECL_WRITE	(	write_packed	,
		const SwsCompMask	mask
	)

Definition at line 113 of file uops_tmpl.c.

DECL_READ() [3/6]

DECL_READ	(	read_bit	,
		const SwsCompMask	mask
	)

Definition at line 130 of file uops_tmpl.c.

DECL_READ() [4/6]

DECL_READ	(	read_nibble	,
		const SwsCompMask	mask
	)

Definition at line 151 of file uops_tmpl.c.

DECL_WRITE() [3/4]

DECL_WRITE	(	write_bit	,
		const SwsCompMask	mask
	)

Definition at line 166 of file uops_tmpl.c.

DECL_WRITE() [4/4]

DECL_WRITE	(	write_nibble	,
		const SwsCompMask	mask
	)

Definition at line 185 of file uops_tmpl.c.

DECL_SETUP() [1/4]

DECL_SETUP	(	setup_filter_v	,
		params	,
		out
	)

Definition at line 220 of file uops_tmpl.c.

DECL_READ() [5/6]

DECL_READ	(	read_planar_fv	,
		const SwsCompMask	mask,
		const SwsPixelType	type
	)

Definition at line 244 of file uops_tmpl.c.

DECL_SETUP() [2/4]

DECL_SETUP	(	setup_filter_h	,
		params	,
		out
	)

Definition at line 283 of file uops_tmpl.c.

DECL_READ() [6/6]

DECL_READ	(	read_planar_fh	,
		const SwsCompMask	mask,
		const SwsPixelType	type
	)

Definition at line 296 of file uops_tmpl.c.

DECL_FUNC() [1/14]

DECL_FUNC	(	lshift	,
		const SwsCompMask	mask,
		const uint8_t	amount
	)

Definition at line 408 of file uops_tmpl.c.

DECL_FUNC() [2/14]

DECL_FUNC	(	rshift	,
		const SwsCompMask	mask,
		const uint8_t	amount
	)

Definition at line 421 of file uops_tmpl.c.

DECL_FUNC() [3/14]

DECL_FUNC	(	expand_bit	,
		const SwsCompMask	mask
	)

Definition at line 460 of file uops_tmpl.c.

DECL_FUNC() [4/14]

DECL_FUNC	(	expand_pair	,
		const SwsCompMask	mask
	)

Definition at line 475 of file uops_tmpl.c.

DECL_FUNC() [5/14]

DECL_FUNC	(	expand_quad	,
		const SwsCompMask	mask
	)

Definition at line 490 of file uops_tmpl.c.

DECL_FUNC() [6/14]

DECL_FUNC	(	unpack	,
		const SwsCompMask	mask,
		const uint8_t	bx,
		const uint8_t	by,
		const uint8_t	bz,
		const uint8_t	bw
	)

Definition at line 518 of file uops_tmpl.c.

DECL_FUNC() [7/14]

DECL_FUNC	(	pack	,
		const SwsCompMask	mask,
		const uint8_t	bx,
		const uint8_t	by,
		const uint8_t	bz,
		const uint8_t	bw
	)

Definition at line 544 of file uops_tmpl.c.

DECL_FUNC() [8/14]

DECL_FUNC	(	clear	,
		const SwsCompMask	mask,
		const SwsCompMask	one,
		const SwsCompMask	zero
	)

Definition at line 577 of file uops_tmpl.c.

DECL_FUNC() [9/14]

DECL_FUNC	(	scale	,
		const SwsCompMask	mask
	)

Definition at line 606 of file uops_tmpl.c.

DECL_FUNC() [10/14]

DECL_FUNC	(	add	,
		const SwsCompMask	mask
	)

Definition at line 621 of file uops_tmpl.c.

DECL_FUNC() [11/14]

DECL_FUNC	(	min	,
		const SwsCompMask	mask
	)

Definition at line 634 of file uops_tmpl.c.

DECL_FUNC() [12/14]

DECL_FUNC	(	max	,
		const SwsCompMask	mask
	)

Definition at line 647 of file uops_tmpl.c.

DECL_SETUP() [3/4]

DECL_SETUP	(	setup_dither	,
		params	,
		out
	)

Definition at line 673 of file uops_tmpl.c.

DECL_FUNC() [13/14]

DECL_FUNC	(	dither	,
		const SwsCompMask	mask,
		const uint8_t	off0,
		const uint8_t	off1,
		const uint8_t	off2,
		const uint8_t	off3,
		const uint8_t	size_log2
	)

Definition at line 707 of file uops_tmpl.c.

DECL_SETUP() [4/4]

DECL_SETUP	(	setup_linear	,
		params	,
		out
	)

Definition at line 748 of file uops_tmpl.c.

DECL_FUNC() [14/14]

DECL_FUNC	(	linear	,
		const SwsCompMask	mask,
		const uint32_t	one,
		const uint32_t	zero
	)

Fully general case for a 5x5 linear affine transformation.

Should never be called without constant mask. This function will compile down to the appropriately optimized version for the required subset of operations when called with a constant mask.

Definition at line 770 of file uops_tmpl.c.