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avfilter/vf_morpho: Factor out (re)allocating lut 

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-10-03 08:51:42 +02:00
parent beded39b19
commit 0536c5a449
1 changed files with 28 additions and 32 deletions
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60
libavfilter/vf_morpho.c
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@ -315,6 +315,28 @@ static void free_lut(LUT *table)
av_freep(&rp);
}
static int alloc_lut_if_necessary(LUT *Ty, IPlane *f, chord_set *SE,
int y, int num, enum MorphModes mode)
{
if (Ty->I != SE->Lnum ||
Ty->X != f->w ||
Ty->min_r != SE->minY ||
Ty->max_r != SE->maxY + num - 1) {
int ret;
free_lut(Ty);
Ty->I = SE->Lnum;
Ty->X = f->w;
Ty->min_r = SE->minY;
Ty->max_r = SE->maxY + num - 1;
ret = alloc_lut(Ty, SE, f->type_size, mode);
if (ret < 0)
return ret;
}
return 0;
}
static void circular_swap(LUT *Ty)
{
/*
@ -362,22 +384,9 @@ static void update_min_lut(IPlane *f, LUT *Ty, chord_set *SE, int y, int tid, in
static int compute_min_lut(LUT *Ty, IPlane *f, chord_set *SE, int y, int num)
{
if (Ty->I != SE->Lnum ||
Ty->X != f->w ||
Ty->min_r != SE->minY ||
Ty->max_r != SE->maxY + num - 1) {
int ret;
free_lut(Ty);
Ty->I = SE->Lnum;
Ty->X = f->w;
Ty->min_r = SE->minY;
Ty->max_r = SE->maxY + num - 1;
ret = alloc_lut(Ty, SE, f->type_size, ERODE);
if (ret < 0)
return ret;
}
int ret = alloc_lut_if_necessary(Ty, f, SE, y, num, ERODE);
if (ret < 0)
return ret;
for (int r = Ty->min_r; r <= Ty->max_r; r++)
compute_min_row(f, Ty, SE, r, y);
@ -416,22 +425,9 @@ static void update_max_lut(IPlane *f, LUT *Ty, chord_set *SE, int y, int tid, in
static int compute_max_lut(LUT *Ty, IPlane *f, chord_set *SE, int y, int num)
{
if (Ty->I != SE->Lnum ||
Ty->X != f->w ||
Ty->min_r != SE->minY ||
Ty->max_r != SE->maxY + num - 1) {
int ret;
free_lut(Ty);
Ty->I = SE->Lnum;
Ty->X = f->w;
Ty->min_r = SE->minY;
Ty->max_r = SE->maxY + num - 1;
ret = alloc_lut(Ty, SE, f->type_size, DILATE);
if (ret < 0)
return ret;
}
int ret = alloc_lut_if_necessary(Ty, f, SE, y, num, DILATE);
if (ret < 0)
return ret;
for (int r = Ty->min_r; r <= Ty->max_r; r++)
compute_max_row(f, Ty, SE, r, y);