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convasep done

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though not tried compiling yet
This commit is contained in:
John Cupitt 2016-07-06 10:02:53 +01:00
parent 0aa453ee0a
commit e0cfcc5f47
1 changed files with 212 additions and 214 deletions
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426
libvips/convolution/convasep.c
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@ -55,6 +55,14 @@
- are we handling mask offset correctly?
nope! we have area and rounding, but neither properly incorporates
offset
- how about making a cumulative image and then subtracting points in
that, rather than keeping a set of running totals
faster?
*/
/* Show sample pixels as they are transformed.
@ -123,22 +131,22 @@ typedef VipsConvolutionClass VipsConvasepClass;
G_DEFINE_TYPE( VipsConvasep, vips_convasep, VIPS_TYPE_CONVOLUTION );
static void
vips_convasep_lines_start( Lines *lines, int x, int factor )
vips_convasep_line_start( VipsConvasep *convasep, int x, int factor )
{
lines->start[lines->n_lines] = x;
lines->factor[lines->n_lines] = factor;
convasep->start[convasep->n_lines] = x;
convasep->factor[convasep->n_lines] = factor;
}
static int
vips_convasep_lines_end( Lines *lines, int x )
vips_convasep_line_end( VipsConvasep *convasep, int x )
{
lines->end[lines->n_lines] = x;
convasep->end[convasep->n_lines] = x;
if( lines->n_lines >= MAX_LINES - 1 ) {
if( convasep->n_lines >= MAX_LINES - 1 ) {
vips_error( "VipsConvasep", "%s", _( "mask too complex" ) );
return( -1 );
}
lines->n_lines += 1;
convasep->n_lines += 1;
return( 0 );
}
@ -148,63 +156,52 @@ vips_convasep_lines_end( Lines *lines, int x )
static int
vips_convasep_decompose( VipsConvasep *convasep )
{
const int width = mask->xsize * mask->ysize;
VipsConvolution *convolution = (VipsConvolution *) object;
VipsImage *M = convolution->M;
double *coeff = (double *) VIPS_IMAGE_ADDR( M, 0, 0 );
double scale = vips_image_get_scale( M );
double offset = vips_image_get_offset( M );
const int width = M->Xsize * M->Ysize;
Lines *lines;
double max;
double min;
double depth;
double sum;
int layers;
int layers_above;
int layers_below;
int z, n, x;
/* Check parameters.
*/
if( im_piocheck( in, out ) ||
im_check_uncoded( "im_convasep", in ) ||
vips_check_dmask_1d( "im_convasep", mask ) )
return( NULL );
lines = VIPS_NEW( out, Lines );
lines->in = in;
lines->out = out;
if( !(lines->mask = (DOUBLEMASK *) im_local( out,
(im_construct_fn) im_dup_dmask,
(im_callback_fn) im_free_dmask, mask, mask->filename, NULL )) )
return( NULL );
lines->n_layers = n_layers;
lines->n_lines = 0;
VIPS_DEBUG_MSG( "lines_new: breaking into %d layers ...\n", n_layers );
VIPS_DEBUG_MSG( "vips_convasep_decompose: "
"breaking into %d layers ...\n", convasep->layers );
/* Find mask range. We must always include the zero axis in the mask.
*/
max = 0;
min = 0;
for( x = 0; x < width; x++ ) {
if( mask->coeff[x] > max )
max = mask->coeff[x];
if( mask->coeff[x] < min )
min = mask->coeff[x];
if( coeff[x] > max )
max = coeff[x];
if( coeff[x] < min )
min = coeff[x];
}
/* The zero axis must fall on a layer boundary. Estimate the
* depth, find n-lines-above-zero, get exact depth, then calculate a
* fixed n-lines which includes any negative parts.
*/
depth = (max - min) / n_layers;
depth = (max - min) / convasep->layers;
layers_above = ceil( max / depth );
depth = max / layers_above;
layers_below = floor( min / depth );
n_layers = layers_above - layers_below;
layers = layers_above - layers_below;
VIPS_DEBUG_MSG( "depth = %g, n_layers = %d\n", depth, n_layers );
VIPS_DEBUG_MSG( "depth = %g, layers = %d\n", depth, layers );
/* For each layer, generate a set of lines which are inside the
* perimeter. Work down from the top.
*/
for( z = 0; z < n_layers; z++ ) {
for( z = 0; z < layers; z++ ) {
double y = max - (1 + z) * depth;
/* y plus half depth ... ie. the layer midpoint.
@ -226,17 +223,17 @@ vips_convasep_decompose( VipsConvasep *convasep )
/* The vertical line from mask[z] to 0 is inside. Is
* our current square (x, y) part of that line?
*/
if( (y_positive && mask->coeff[x] >= y_ph) ||
(!y_positive && mask->coeff[x] <= y_ph) ) {
if( (y_positive && coeff[x] >= y_ph) ||
(!y_positive && coeff[x] <= y_ph) ) {
if( !inside ) {
vips_convasep_lines_start( lines, x,
y_positive ? 1 : -1 );
vips_convasep_line_start( convasep,
x, y_positive ? 1 : -1 );
inside = 1;
}
}
else {
if( inside ) {
if( vips_convasep_lines_end( lines, x ) )
if( vips_convasep_line_end( convasep, x ) )
return( NULL );
inside = 0;
}
@ -244,83 +241,83 @@ vips_convasep_decompose( VipsConvasep *convasep )
}
if( inside &&
vips_convasep_lines_end( lines, width ) )
vips_convasep_line_end( lines, width ) )
return( NULL );
}
/* Can we common up any lines? Search for lines with identical
* start/end.
*/
for( z = 0; z < lines->n_lines; z++ ) {
for( n = z + 1; n < lines->n_lines; n++ ) {
if( lines->start[z] == lines->start[n] &&
lines->end[z] == lines->end[n] ) {
lines->factor[z] += lines->factor[n];
for( z = 0; z < convasep->n_lines; z++ ) {
for( n = z + 1; n < convasep->n_lines; n++ ) {
if( convasep->start[z] == convasep->start[n] &&
convasep->end[z] == convasep->end[n] ) {
convasep->factor[z] += convasep->factor[n];
/* n can be deleted. Do this in a separate
* pass below.
*/
lines->factor[n] = 0;
convasep->factor[n] = 0;
}
}
}
/* Now we can remove all factor 0 lines.
*/
for( z = 0; z < lines->n_lines; z++ ) {
if( lines->factor[z] == 0 ) {
for( x = z; x < lines->n_lines; x++ ) {
lines->start[x] = lines->start[x + 1];
lines->end[x] = lines->end[x + 1];
lines->factor[x] = lines->factor[x + 1];
for( z = 0; z < convasep->n_lines; z++ ) {
if( convasep->factor[z] == 0 ) {
for( x = z; x < convasep->n_lines; x++ ) {
convasep->start[x] = convasep->start[x + 1];
convasep->end[x] = convasep->end[x + 1];
convasep->factor[x] = convasep->factor[x + 1];
}
lines->n_lines -= 1;
convasep->n_lines -= 1;
}
}
/* Find the area of the lines.
*/
lines->area = 0;
for( z = 0; z < lines->n_lines; z++ )
lines->area += lines->factor[z] *
(lines->end[z] - lines->start[z]);
convasep->area = 0;
for( z = 0; z < convasep->n_lines; z++ )
convasep->area += convasep->factor[z] *
(convasep->end[z] - convasep->start[z]);
/* Strength reduction: if all lines are divisible by n, we can move
* that n out into the ->area factor. The aim is to produce as many
* factor 1 lines as we can and to reduce the chance of overflow.
*/
x = lines->factor[0];
for( z = 1; z < lines->n_lines; z++ )
x = gcd( x, lines->factor[z] );
for( z = 0; z < lines->n_lines; z++ )
lines->factor[z] /= x;
lines->area *= x;
x = convasep->factor[0];
for( z = 1; z < convasep->n_lines; z++ )
x = gcd( x, convasep->factor[z] );
for( z = 0; z < convasep->n_lines; z++ )
convasep->factor[z] /= x;
convasep->area *= x;
/* Find the area of the original mask.
*/
sum = 0;
for( z = 0; z < width; z++ )
sum += mask->coeff[z];
sum += coeff[z];
lines->area = rint( sum * lines->area / mask->scale );
lines->rounding = (lines->area + 1) / 2 + mask->offset * lines->area;
convasep->area = rint( sum * convasep->area / scale );
convasep->rounding = (convasep->area + 1) / 2 + offset * convasep->area;
/* ASCII-art layer drawing.
printf( "lines:\n" );
for( z = 0; z < lines->n_lines; z++ ) {
printf( "%3d - %2d x ", z, lines->factor[z] );
for( z = 0; z < convasep->n_lines; z++ ) {
printf( "%3d - %2d x ", z, convasep->factor[z] );
for( x = 0; x < 55; x++ ) {
int rx = x * (width + 1) / 55;
if( rx >= lines->start[z] && rx < lines->end[z] )
if( rx >= convasep->start[z] && rx < convasep->end[z] )
printf( "#" );
else
printf( " " );
}
printf( " %3d .. %3d\n", lines->start[z], lines->end[z] );
printf( " %3d .. %3d\n", convasep->start[z], convasep->end[z] );
}
printf( "area = %d\n", lines->area );
printf( "rounding = %d\n", lines->rounding );
printf( "area = %d\n", convasep->area );
printf( "rounding = %d\n", convasep->rounding );
*/
return( lines );
@ -329,8 +326,9 @@ vips_convasep_decompose( VipsConvasep *convasep )
/* Our sequence value.
*/
typedef struct {
Lines *lines;
REGION *ir; /* Input region */
VipsConvasep *convasep;
VipsRegion *ir; /* Input region */
int *start; /* Offsets for start and stop */
int *end;
@ -338,19 +336,24 @@ typedef struct {
/* The sums for each line. int for integer types, double for floating
* point types.
*/
void *sum;
int *isum;
double *dsum;
int last_stride; /* Avoid recalcing offsets, if we can */
} AConvSep;
} VipsConvasepSeq;
/* Free a sequence value.
*/
static int
vips_convasep_stop( void *vseq, void *a, void *b )
{
AConvSep *seq = (AConvSep *) vseq;
VipsConvasepSeq *seq = (VipsConvasepSeq *) vseq;
IM_FREEF( im_region_free, seq->ir );
VIPS_UNREF( seq->ir );
VIPS_FREE( seq->start );
VIPS_FREE( seq->end );
VIPS_FREE( seq->isum );
VIPS_FREE( seq->dsum );
return( 0 );
}
@ -358,33 +361,35 @@ vips_convasep_stop( void *vseq, void *a, void *b )
/* Convolution start function.
*/
static void *
vips_convasep_start( IMAGE *out, void *a, void *b )
vips_convasep_start( VipsImage *out, void *a, void *b )
{
IMAGE *in = (IMAGE *) a;
Lines *lines = (Lines *) b;
VipsImage *in = (IMAGE *) a;
VipsConvasep *convasep = (VipsConvasep *) b;
AConvSep *seq;
VipsConvasepSeq *seq;
if( !(seq = IM_NEW( out, AConvSep )) )
if( !(seq = VIPS_NEW( out, VipsConvasepSeq )) )
return( NULL );
/* Init!
*/
seq->lines = lines;
seq->ir = im_region_create( in );
seq->start = IM_ARRAY( out, lines->n_lines, int );
seq->end = IM_ARRAY( out, lines->n_lines, int );
seq->convasep = convasep;
seq->ir = vips_region_new( in );
seq->start = VIPS_ARRAY( NULL, convasep->n_lines, int );
seq->end = VIPS_ARRAY( NULL, convasep->n_lines, int );
seq->isum = NULL;
seq->dsum = NULL;
if( vips_band_format_isint( out->BandFmt ) )
seq->sum = IM_ARRAY( out, lines->n_lines, int );
seq->isum = VIPS_ARRAY( NULL, convasep->n_lines, int );
else
seq->sum = IM_ARRAY( out, lines->n_lines, double );
seq->dsum = VIPS_ARRAY( NULL, convasep->n_lines, double );
seq->last_stride = -1;
if( !seq->ir ||
!seq->start ||
!seq->end ||
!seq->sum ) {
vips_convasep_stop( seq, in, lines );
(!seq->isum && !seq->dsum) ) {
vips_convasep_stop( seq, in, convasep );
return( NULL );
}
@ -431,23 +436,23 @@ G_STMT_START { \
#define HCONV_INT( TYPE, CLIP ) { \
for( i = 0; i < bands; i++ ) { \
int *seq_sum = (int *) seq->sum; \
int *isum = seq->isum; \
\
TYPE *q; \
TYPE *p; \
int sum; \
\
p = i + (TYPE *) IM_REGION_ADDR( ir, r->left, r->top + y ); \
q = i + (TYPE *) IM_REGION_ADDR( or, r->left, r->top + y ); \
p = i + (TYPE *) VIPS_REGION_ADDR( ir, r->left, r->top + y ); \
q = i + (TYPE *) VIPS_REGION_ADDR( or, r->left, r->top + y ); \
\
sum = 0; \
for( z = 0; z < n_lines; z++ ) { \
seq_sum[z] = 0; \
for( x = lines->start[z]; x < lines->end[z]; x++ ) \
seq_sum[z] += p[x * istride]; \
sum += lines->factor[z] * seq_sum[z]; \
isum[z] = 0; \
for( x = seq->start[z]; x < seq->end[z]; x += istride ) \
isum[z] += p[x]; \
sum += convasep->factor[z] * isum[z]; \
} \
sum = (sum + lines->rounding) / lines->area; \
sum = (sum + convasep->rounding) / convasep->area; \
CLIP( sum ); \
*q = sum; \
q += ostride; \
@ -455,12 +460,12 @@ G_STMT_START { \
for( x = 1; x < r->width; x++ ) { \
sum = 0; \
for( z = 0; z < n_lines; z++ ) { \
seq_sum[z] += p[seq->end[z]]; \
seq_sum[z] -= p[seq->start[z]]; \
sum += lines->factor[z] * seq_sum[z]; \
isum[z] += p[seq->end[z]]; \
isum[z] -= p[seq->start[z]]; \
sum += convasep->factor[z] * isum[z]; \
} \
p += istride; \
sum = (sum + lines->rounding) / lines->area; \
sum = (sum + convasep->rounding) / convasep->area; \
CLIP( sum ); \
*q = sum; \
q += ostride; \
@ -470,35 +475,35 @@ G_STMT_START { \
#define HCONV_FLOAT( TYPE ) { \
for( i = 0; i < bands; i++ ) { \
double *seq_sum = (double *) seq->sum; \
double *dsum = seq->dsum; \
\
TYPE *q; \
TYPE *p; \
double sum; \
\
p = i + (TYPE *) IM_REGION_ADDR( ir, r->left, r->top + y ); \
q = i + (TYPE *) IM_REGION_ADDR( or, r->left, r->top + y ); \
p = i + (TYPE *) VIPS_REGION_ADDR( ir, r->left, r->top + y ); \
q = i + (TYPE *) VIPS_REGION_ADDR( or, r->left, r->top + y ); \
\
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] = 0; \
for( x = lines->start[z]; x < lines->end[z]; x++ ) \
seq_sum[z] += p[x * istride]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
dsum[z] = 0; \
for( x = seq->start[z]; x < seq->end[z]; x += istride ) \
dsum[z] += p[x]; \
sum += convasep->factor[z] * dsum[z]; \
} \
sum = sum / lines->area + mask->offset; \
sum = sum / convasep->area + mask->offset; \
*q = sum; \
q += ostride; \
\
for( x = 1; x < r->width; x++ ) { \
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] += p[seq->end[z]]; \
seq_sum[z] -= p[seq->start[z]]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
dsum[z] += p[seq->end[z]]; \
dsum[z] -= p[seq->start[z]]; \
sum += convasep->factor[z] * dsum[z]; \
} \
p += istride; \
sum = sum / lines->area + mask->offset; \
sum = sum / convasep->area + offset; \
*q = sum; \
q += ostride; \
} \
@ -508,23 +513,25 @@ G_STMT_START { \
/* Do horizontal masks ... we scan the mask along scanlines.
*/
static int
vips_convasep_generate_horizontal( REGION *or, void *vseq, void *a, void *b )
vips_convasep_generate_horizontal( VipsRegion *or,
void *vseq, void *a, void *b, gboolean *stop )
{
AConvSep *seq = (AConvSep *) vseq;
IMAGE *in = (IMAGE *) a;
Lines *lines = (Lines *) b;
VipsConvasepSeq *seq = (VipsConvasepSeq *) vseq;
VipsImage *in = (VipsImage *) a;
VipsConvasep *convasep = (VipsConvasep *) b;
VipsConvolution *convolution = (VipsConvolution *) convasep;
VipsImage *M = convolution->M;
REGION *ir = seq->ir;
const int n_lines = lines->n_lines;
DOUBLEMASK *mask = lines->mask;
Rect *r = &or->valid;
VipsRegion *ir = seq->ir;
const int n_lines = convasep->n_lines;
VipsRect *r = &or->valid;
/* Double the bands (notionally) for complex.
*/
int bands = vips_band_format_iscomplex( in->BandFmt ) ?
2 * in->Bands : in->Bands;
Rect s;
VipsRect s;
int x, y, z, i;
int istride;
int ostride;
@ -533,18 +540,18 @@ vips_convasep_generate_horizontal( REGION *or, void *vseq, void *a, void *b )
* than the section of the output image we are producing.
*/
s = *r;
s.width += mask->xsize - 1;
s.height += mask->ysize - 1;
if( im_prepare( ir, &s ) )
s.width += M->Xsize - 1;
s.height += M->Ysize - 1;
if( vips_region_prepare( ir, &s ) )
return( -1 );
/* Stride can be different for the vertical case, keep this here for
* ease of direction change.
*/
istride = IM_IMAGE_SIZEOF_PEL( in ) /
IM_IMAGE_SIZEOF_ELEMENT( in );
ostride = IM_IMAGE_SIZEOF_PEL( lines->out ) /
IM_IMAGE_SIZEOF_ELEMENT( lines->out );
istride = VIPS_IMAGE_SIZEOF_PEL( in ) /
VIPS_IMAGE_SIZEOF_ELEMENT( in );
ostride = VIPS_IMAGE_SIZEOF_PEL( convolution->out ) /
VIPS_IMAGE_SIZEOF_ELEMENT( convolution->out );
/* Init offset array.
*/
@ -552,50 +559,44 @@ vips_convasep_generate_horizontal( REGION *or, void *vseq, void *a, void *b )
seq->last_stride = istride;
for( z = 0; z < n_lines; z++ ) {
seq->start[z] = lines->start[z] * istride;
seq->end[z] = lines->end[z] * istride;
seq->start[z] = convasep->start[z] * istride;
seq->end[z] = convasep->end[z] * istride;
}
}
for( y = 0; y < r->height; y++ ) {
switch( in->BandFmt ) {
case IM_BANDFMT_UCHAR:
case VIPS_FORMAT_UCHAR:
HCONV_INT( unsigned char, CLIP_UCHAR );
break;
case IM_BANDFMT_CHAR:
HCONV_INT( signed char, CLIP_UCHAR );
case VIPS_FORMAT_CHAR:
HCONV_INT( signed char, CLIP_CHAR );
break;
case IM_BANDFMT_USHORT:
case VIPS_FORMAT_USHORT:
HCONV_INT( unsigned short, CLIP_USHORT );
break;
case IM_BANDFMT_SHORT:
case VIPS_FORMAT_SHORT:
HCONV_INT( signed short, CLIP_SHORT );
break;
case IM_BANDFMT_UINT:
case VIPS_FORMAT_UINT:
HCONV_INT( unsigned int, CLIP_NONE );
break;
case IM_BANDFMT_INT:
case VIPS_FORMAT_INT:
HCONV_INT( signed int, CLIP_NONE );
break;
case IM_BANDFMT_FLOAT:
case VIPS_FORMAT_FLOAT:
case VIPS_FORMAT_COMPLEX:
HCONV_FLOAT( float );
break;
case IM_BANDFMT_DOUBLE:
HCONV_FLOAT( double );
break;
case IM_BANDFMT_COMPLEX:
HCONV_FLOAT( float );
break;
case IM_BANDFMT_DPCOMPLEX:
case VIPS_FORMAT_DOUBLE:
case VIPS_FORMAT_DPCOMPLEX:
HCONV_FLOAT( double );
break;
@ -609,74 +610,74 @@ vips_convasep_generate_horizontal( REGION *or, void *vseq, void *a, void *b )
#define VCONV_INT( TYPE, CLIP ) { \
for( x = 0; x < sz; x++ ) { \
int *seq_sum = (int *) seq->sum; \
int *isum = seq->isum; \
\
TYPE *q; \
TYPE *p; \
int sum; \
\
p = x + (TYPE *) IM_REGION_ADDR( ir, r->left, r->top ); \
q = x + (TYPE *) IM_REGION_ADDR( or, r->left, r->top ); \
p = x + (TYPE *) VIPS_REGION_ADDR( ir, r->left, r->top ); \
q = x + (TYPE *) VIPS_REGION_ADDR( or, r->left, r->top ); \
\
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] = 0; \
for( y = lines->start[z]; y < lines->end[z]; y++ ) \
seq_sum[z] += p[y * istride]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
isum[z] = 0; \
for( y = seq->start[z]; y < seq->end[z]; y += istride ) \
isum[z] += p[y]; \
sum += convasep->factor[z] * isum[z]; \
} \
sum = (sum + lines->rounding) / lines->area; \
sum = (sum + convasep->rounding) / convasep->area; \
CLIP( sum ); \
*q = sum; \
q += ostride; \
\
for( y = 1; y < r->height; y++ ) { \
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] += p[seq->end[z]]; \
seq_sum[z] -= p[seq->start[z]]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
isum[z] += p[seq->end[z]]; \
isum[z] -= p[seq->start[z]]; \
sum += convasep->factor[z] * isum[z]; \
} \
p += istride; \
sum = (sum + lines->rounding) / lines->area; \
sum = (sum + convasep->rounding) / convasep->area; \
CLIP( sum ); \
*q = sum; \
q += ostride; \
} \
} \
} \
}
#define VCONV_FLOAT( TYPE ) { \
for( x = 0; x < sz; x++ ) { \
double *seq_sum = (double *) seq->sum; \
double *dsum = seq->sum; \
\
TYPE *q; \
TYPE *p; \
double sum; \
\
p = x + (TYPE *) IM_REGION_ADDR( ir, r->left, r->top ); \
q = x + (TYPE *) IM_REGION_ADDR( or, r->left, r->top ); \
p = x + (TYPE *) VIPS_REGION_ADDR( ir, r->left, r->top ); \
q = x + (TYPE *) VIPS_REGION_ADDR( or, r->left, r->top ); \
\
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] = 0; \
for( y = lines->start[z]; y < lines->end[z]; y++ ) \
seq_sum[z] += p[y * istride]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
dsum[z] = 0; \
for( y = seq->start[z]; y < seq->end[z]; y += istride ) \
dsum[z] += p[y]; \
sum += convasep->factor[z] * dsum[z]; \
} \
sum = sum / lines->area + mask->offset; \
sum = sum / convasep->area + mask->offset; \
*q = sum; \
q += ostride; \
\
for( y = 1; y < r->height; y++ ) { \
sum = 0; \
for( z = 0; z < lines->n_lines; z++ ) { \
seq_sum[z] += p[seq->end[z]]; \
seq_sum[z] -= p[seq->start[z]]; \
sum += lines->factor[z] * seq_sum[z]; \
for( z = 0; z < n_lines; z++ ) { \
dsum[z] += p[seq->end[z]]; \
dsum[z] -= p[seq->start[z]]; \
sum += lines->factor[z] * dsum[z]; \
} \
p += istride; \
sum = sum / lines->area + mask->offset; \
sum = sum / convasep->area + offset; \
*q = sum; \
q += ostride; \
} \
@ -687,23 +688,25 @@ vips_convasep_generate_horizontal( REGION *or, void *vseq, void *a, void *b )
* from above with small changes.
*/
static int
vips_convasep_generate_vertical( REGION *or, void *vseq, void *a, void *b )
vips_convasep_generate_vertical( VipsRegion *or,
void *vseq, void *a, void *b, gboolean *stop )
{
AConvSep *seq = (AConvSep *) vseq;
IMAGE *in = (IMAGE *) a;
Lines *lines = (Lines *) b;
VipsConvasepSeq *seq = (VipsConvasepSeq *) vseq;
VipsImage *in = (VipsImage *) a;
VipsConvasep *convasep = (VipsConvasep *) b;
VipsConvolution *convolution = (VipsConvolution *) convasep;
VipsImage *M = convolution->M;
REGION *ir = seq->ir;
const int n_lines = lines->n_lines;
DOUBLEMASK *mask = lines->mask;
Rect *r = &or->valid;
VipsRegion *ir = seq->ir;
const int n_lines = convasep->n_lines;
VipsRect *r = &or->valid;
/* Double the width (notionally) for complex.
*/
int sz = vips_band_format_iscomplex( in->BandFmt ) ?
2 * IM_REGION_N_ELEMENTS( or ) : IM_REGION_N_ELEMENTS( or );
2 * VIPS_REGION_N_ELEMENTS( or ) : VIPS_REGION_N_ELEMENTS( or );
Rect s;
VipsRect s;
int x, y, z;
int istride;
int ostride;
@ -714,16 +717,16 @@ vips_convasep_generate_vertical( REGION *or, void *vseq, void *a, void *b )
s = *r;
s.width += mask->xsize - 1;
s.height += mask->ysize - 1;
if( im_prepare( ir, &s ) )
if( vips_region_prepare( ir, &s ) )
return( -1 );
/* Stride can be different for the vertical case, keep this here for
* ease of direction change.
*/
istride = IM_REGION_LSKIP( ir ) /
IM_IMAGE_SIZEOF_ELEMENT( lines->in );
ostride = IM_REGION_LSKIP( or ) /
IM_IMAGE_SIZEOF_ELEMENT( lines->out );
istride = VIPS_REGION_LSKIP( ir ) /
IM_IMAGE_SIZEOF_ELEMENT( convasep->in );
ostride = VIPS_REGION_LSKIP( or ) /
IM_IMAGE_SIZEOF_ELEMENT( convasep->out );
/* Init offset array.
*/
@ -737,43 +740,37 @@ vips_convasep_generate_vertical( REGION *or, void *vseq, void *a, void *b )
}
switch( in->BandFmt ) {
case IM_BANDFMT_UCHAR:
case VIPS_FORMAT_UCHAR:
VCONV_INT( unsigned char, CLIP_UCHAR );
break;
case IM_BANDFMT_CHAR:
VCONV_INT( signed char, CLIP_UCHAR );
case VIPS_FORMAT_CHAR:
VCONV_INT( signed char, CLIP_CHAR );
break;
case IM_BANDFMT_USHORT:
case VIPS_FORMAT_USHORT:
VCONV_INT( unsigned short, CLIP_USHORT );
break;
case IM_BANDFMT_SHORT:
case VIPS_FORMAT_SHORT:
VCONV_INT( signed short, CLIP_SHORT );
break;
case IM_BANDFMT_UINT:
case VIPS_FORMAT_UINT:
VCONV_INT( unsigned int, CLIP_NONE );
break;
case IM_BANDFMT_INT:
case VIPS_FORMAT_INT:
VCONV_INT( signed int, CLIP_NONE );
break;
case IM_BANDFMT_FLOAT:
case VIPS_FORMAT_FLOAT:
case VIPS_FORMAT_COMPLEX:
VCONV_FLOAT( float );
break;
case IM_BANDFMT_DOUBLE:
VCONV_FLOAT( double );
break;
case IM_BANDFMT_COMPLEX:
VCONV_FLOAT( float );
break;
case IM_BANDFMT_DPCOMPLEX:
case VIPS_FORMAT_DOUBLE:
case VIPS_FORMAT_DPCOMPLEX:
VCONV_FLOAT( double );
break;
@ -898,6 +895,7 @@ static void
vips_convasep_init( VipsConvf *convasep )
{
convasep->layers = 5;
convasep->n_lines = 0;
}
/**