uops.c File Reference

#include <stdbool.h>
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavutil/refstruct.h"
#include "ops.h"
#include "uops.h"
#include "uops_list.h"

Go to the source code of this file.

Macros
#define	UOP_NAME(OP, ABBR)
#define	Q2PIXEL(val)

Functions
int	ff_sws_uop_cmp (const SwsUOp *a, const SwsUOp *b)
	Copyright (C) 2026 Niklas Haas.
static SwsPixel	pixel_from_q64 (SwsPixelType type, AVRational64 val)
static bool	pixel_is_1s (SwsPixelType type, SwsPixel val)
void	ff_sws_uop_name (const SwsUOp *op, char buf[SWS_UOP_NAME_MAX])
static void	uop_uninit (SwsUOp *uop)
void	ff_sws_uop_list_free (SwsUOpList **p_ops)
SwsUOpList *	ff_sws_uop_list_alloc (void)
int	ff_sws_uop_list_append (SwsUOpList *uops, SwsUOp *uop)
void	ff_sws_uop_list_remove_at (SwsUOpList *uops, int index, int count)
int	ff_sws_dither_height (const SwsDitherUOp *dither)
	Computes (1 << size_log2) + MAX(y_offset).
static SwsPixelType	pixel_type_to_int (const SwsPixelType type)
static bool	exact_product_f32 (float a, float b)
static bool	exact_prod (SwsPixelType type, SwsPixel coef, const SwsComps *comps, int idx)
static bool	check_filter_fma (SwsContext *ctx, SwsUOpFlags flags, const SwsOp *op)
static int	translate_rw_op (SwsContext *ctx, SwsUOpList *ops, SwsUOpFlags flags, const SwsOp *op)
static int	count_idx (const int *arr, size_t size, int val)
static int	translate_swizzle (SwsUOpList *ops, const SwsOp *op)
static int	translate_dither_op (SwsUOpList *ops, const SwsOp *op)
static int	translate_linear_op (SwsContext *ctx, SwsUOpList *ops, SwsUOpFlags flags, const SwsOp *op, const SwsComps *input)
static bool	is_expand_bit (SwsPixelType type, AVRational64 factor)
static int	translate_op (SwsContext *ctx, SwsUOpList *uops, SwsUOpFlags flags, const SwsOp *op, const SwsComps *input)
int	ff_sws_ops_translate (SwsContext *ctx, const SwsOpList *ops, SwsUOpFlags flags, SwsUOpList *uops)
	Translate a list of operations down to micro-ops, which can be further optimized and then directly executed by backends.

Variables
struct {
char   abbr [32]
}	uop_names [SWS_UOP_TYPE_NB]

Macro Definition Documentation

UOP_NAME

#define UOP_NAME	(		OP,
			ABBR )

Value:

[OP] = { ABBR },

Q2PIXEL

#define Q2PIXEL

(

val

)

Value:

pixel_from_q64(op->type, val)

Definition at line 66 of file uops.c.

Referenced by translate_dither_op(), translate_linear_op(), and translate_op().

Function Documentation

ff_sws_uop_cmp()

int ff_sws_uop_cmp	(	const SwsUOp *	a,
		const SwsUOp *	b )

Copyright (C) 2026 Niklas Haas.

Compare two SwsUOps for equality (excluding constant data).

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 31 of file uops.c.

Referenced by ff_sws_uop_cmp_v(), and ff_sws_uop_lookup().

pixel_from_q64()

static SwsPixel pixel_from_q64 ( SwsPixelType type, AVRational64 val )

static

Definition at line 50 of file uops.c.

Referenced by exact_prod().

pixel_is_1s()

static bool pixel_is_1s ( SwsPixelType type, SwsPixel val )

static

Definition at line 68 of file uops.c.

Referenced by translate_op().

ff_sws_uop_name()

void ff_sws_uop_name	(	const SwsUOp *	op,
		char	buf[SWS_UOP_NAME_MAX] )

Definition at line 81 of file uops.c.

Referenced by compile_uops_c(), compile_uops_x86(), ff_sws_uop_lookup(), generate_entry_args(), generate_entry_struct(), and print_ops().

uop_uninit()

static void uop_uninit ( SwsUOp * uop )

static

Definition at line 170 of file uops.c.

Referenced by ff_sws_uop_list_append(), ff_sws_uop_list_free(), and ff_sws_uop_list_remove_at().

ff_sws_uop_list_free()

void ff_sws_uop_list_free

(

SwsUOpList **

p_ops

)

Definition at line 189 of file uops.c.

Referenced by compile_c(), compile_x86(), print_ops(), and register_flags().

ff_sws_uop_list_alloc()

SwsUOpList * ff_sws_uop_list_alloc

(

void

)

Definition at line 203 of file uops.c.

Referenced by compile_c(), compile_x86(), print_ops(), and register_flags().

ff_sws_uop_list_append()

int ff_sws_uop_list_append	(	SwsUOpList *	uops,
		SwsUOp *	uop )

Definition at line 208 of file uops.c.

Referenced by ff_sws_uop_list_optimize(), translate_dither_op(), translate_linear_op(), translate_op(), translate_rw_op(), and translate_swizzle().

ff_sws_uop_list_remove_at()

void ff_sws_uop_list_remove_at	(	SwsUOpList *	uops,
		int	index,
		int	count )

Definition at line 221 of file uops.c.

Referenced by ff_sws_uop_list_optimize().

ff_sws_dither_height()

int ff_sws_dither_height

(

const SwsDitherUOp *

dither

)

Computes (1 << size_log2) + MAX(y_offset).

The dither matrix attached to the SwsUOp is always pre-padded to this number of lines.

Definition at line 232 of file uops.c.

Referenced by check_dither(), DECL_SETUP(), and translate_dither_op().

pixel_type_to_int()

static SwsPixelType pixel_type_to_int ( const SwsPixelType type )

static

Definition at line 240 of file uops.c.

Referenced by translate_op(), translate_rw_op(), and translate_swizzle().

exact_product_f32()

static bool exact_product_f32 ( float a, float b )

static

Definition at line 253 of file uops.c.

Referenced by exact_prod().

exact_prod()

static bool exact_prod ( SwsPixelType type, SwsPixel coef, const SwsComps * comps, int idx )

static

Definition at line 260 of file uops.c.

Referenced by translate_linear_op().

check_filter_fma()

static bool check_filter_fma ( SwsContext * ctx, SwsUOpFlags flags, const SwsOp * op )

static

Definition at line 282 of file uops.c.

Referenced by translate_rw_op().

translate_rw_op()

static int translate_rw_op ( SwsContext * ctx, SwsUOpList * ops, SwsUOpFlags flags, const SwsOp * op )

static

Definition at line 300 of file uops.c.

Referenced by translate_op().

count_idx()

static int count_idx ( const int * arr, size_t size, int val )

static

Definition at line 353 of file uops.c.

Referenced by translate_swizzle().

translate_swizzle()

static int translate_swizzle ( SwsUOpList * ops, const SwsOp * op )

static

Definition at line 364 of file uops.c.

Referenced by translate_op().

translate_dither_op()

static int translate_dither_op ( SwsUOpList * ops, const SwsOp * op )

static

Definition at line 458 of file uops.c.

Referenced by translate_op().

translate_linear_op()

static int translate_linear_op ( SwsContext * ctx, SwsUOpList * ops, SwsUOpFlags flags, const SwsOp * op, const SwsComps * input )

static

Definition at line 506 of file uops.c.

Referenced by translate_op().

is_expand_bit()

static bool is_expand_bit ( SwsPixelType type, AVRational64 factor )

static

Definition at line 550 of file uops.c.

Referenced by translate_op().

translate_op()

static int translate_op ( SwsContext * ctx, SwsUOpList * uops, SwsUOpFlags flags, const SwsOp * op, const SwsComps * input )

static

Definition at line 568 of file uops.c.

Referenced by ff_sws_ops_translate().

ff_sws_ops_translate()

int ff_sws_ops_translate	(	SwsContext *	ctx,
		const SwsOpList *	ops,
		SwsUOpFlags	flags,
		SwsUOpList *	uops )

Translate a list of operations down to micro-ops, which can be further optimized and then directly executed by backends.

Return 0 or a negative error code.

Definition at line 677 of file uops.c.

Referenced by compile_c(), compile_x86(), print_ops(), and register_flags().

Variable Documentation

abbr

char abbr[32]

Definition at line 43 of file uops.c.

Referenced by av_parse_video_rate(), and av_parse_video_size().

[struct]

const struct { ... } uop_names[SWS_UOP_TYPE_NB]

Initial value:

= {
#define UOP_NAME(OP, ABBR)                 
 
 
}

Referenced by ff_sws_uop_name(), generate_entry_args(), generate_entry_struct(), and sws_uops_macros_gen().