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im_draw_mask() added

This commit is contained in:
John Cupitt 2010-09-28 16:06:58 +00:00
parent aad2eb8703
commit 6b1c5b8e56
14 changed files with 536 additions and 303 deletions
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1
ChangeLog
View File

@ -26,6 +26,7 @@
- added im_draw_image(), moved im_insertplace() to deprecated
- added im_draw_line(), now clips, moved im_fastline() to deprecated
- added im_draw_line_user(), now clips, moved im_fastlineuser() to deprecated
- added im_draw_mask(), now wrappable, moved im_plotmask() to deprecated
12/5/10 started 7.22.2
- the conditional image of ifthenelse can be any format, a (!=0) is added if

4
TODO
View File

@ -1,3 +1,7 @@
- im_draw_mask() should not take mx/my args, we can just displace x / y
- im_plotmask() should take the mask as a mono uchar IMAGE perhaps
still need a rect for x/y/w/h of mask, since we use it with userline and an

25
libvips/deprecated/rename.c
View File

@ -34,6 +34,8 @@
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/internal.h>
@ -516,7 +518,7 @@ im_paintrect( IMAGE *im, Rect *r, PEL *ink )
int
im_insertplace( IMAGE *main, IMAGE *sub, int x, int y )
{
return( im_draw_image( main, x, y, sub ) );
return( im_draw_image( main, sub, x, y ) );
}
int
@ -533,3 +535,24 @@ im_fastlineuser( IMAGE *im,
return( im_draw_line_user( im, x1, y1, x2, y2,
fn, client1, client2, client3 ) );
}
int
im_plotmask( IMAGE *im, int ix, int iy, PEL *ink, PEL *mask, Rect *r )
{
IMAGE *mask_im;
if( !(mask_im = im_open( "im_plotmask", "t" )) )
return( -1 );
if( im_black( mask_im, r->width, r->height, 1 ) ) {
im_close( mask_im );
return( -1 );
}
memcpy( mask_im->data, mask, r->width * r->height );
if( im_draw_mask( im, mask_im, ix - r->left, iy - r->top, ink ) ) {
im_close( mask_im );
return( -1 );
}
im_close( mask_im );
return( 0 );
}

2
libvips/include/vips/almostdeprecated.h
View File

@ -244,6 +244,8 @@ int im_fastlineuser( IMAGE *im,
int x1, int y1, int x2, int y2,
int (*fn)(), void *client1, void *client2, void *client3 );
int im_plotmask( IMAGE *im, int ix, int iy, PEL *ink, PEL *mask, Rect *r );
#ifdef __cplusplus
}
#endif /*__cplusplus*/

1
libvips/include/vips/check.h
View File

@ -48,6 +48,7 @@ int im_check_uncoded( const char *domain, IMAGE *im );
int im_check_coding_known( const char *domain, IMAGE *im );
int im_check_coding_labq( const char *domain, IMAGE *im );
int im_check_coding_rad( const char *domain, IMAGE *im );
int im_check_coding_noneorlabq( const char *domain, IMAGE *im );
int im_check_coding_same( const char *domain, IMAGE *im1, IMAGE *im2 );
int im_check_mono( const char *domain, IMAGE *im );
int im_check_bands_1or3( const char *domain, IMAGE *in );

29
libvips/include/vips/inplace.h
View File

@ -37,32 +37,33 @@
extern "C" {
#endif /*__cplusplus*/
int im_draw_rect( IMAGE *image,
int im_draw_rect( VipsImage *image,
int left, int top, int width, int height, int fill, PEL *ink );
int im_draw_circle( IMAGE *im,
int im_draw_circle( VipsImage *image,
int cx, int cy, int radius, gboolean fill, PEL *ink );
int im_draw_image( IMAGE *main, int x, int y, IMAGE *sub );
int im_draw_image( VipsImage *image, VipsImage *sub, int x, int y );
typedef int (*VipsPlotFn)( VipsImage *im, int x, int y,
typedef int (*VipsPlotFn)( VipsImage *image, int x, int y,
void *a, void *b, void *c );
int im_draw_line_user( VipsImage *im,
int im_draw_line_user( VipsImage *image,
int x1, int y1, int x2, int y2,
VipsPlotFn plot, void *a, void *b, void *c );
int im_draw_line( VipsImage *im, int x1, int y1, int x2, int y2, PEL *ink );
int im_lineset( IMAGE *in, IMAGE *out, IMAGE *mask, IMAGE *ink,
int im_draw_line( VipsImage *image, int x1, int y1, int x2, int y2, PEL *ink );
int im_lineset( VipsImage *in, VipsImage *out, VipsImage *mask, VipsImage *ink,
int n, int *x1v, int *y1v, int *x2v, int *y2v );
int im_flood( IMAGE *im, int x, int y, PEL *ink, Rect *dout );
int im_flood_blob( IMAGE *im, int x, int y, PEL *ink, Rect *dout );
int im_flood_other( IMAGE *test, IMAGE *mark,
int im_flood( VipsImage *image, int x, int y, PEL *ink, Rect *dout );
int im_flood_blob( VipsImage *image, int x, int y, PEL *ink, Rect *dout );
int im_flood_other( VipsImage *image, VipsImage *test,
int x, int y, int serial, Rect *dout );
int im_readpoint( IMAGE *im, int x, int y, PEL *pel );
int im_draw_mask( VipsImage *image,
VipsImage *mask_im, int ix, int iy, PEL *ink );
int im_plotmask( IMAGE *im, int ix, int iy, PEL *ink, PEL *mask, Rect *r );
int im_smear( IMAGE *im, int ix, int iy, Rect *r );
int im_smudge( IMAGE *im, int ix, int iy, Rect *r );
int im_readpoint( VipsImage *im, int x, int y, PEL *pel );
int im_smear( VipsImage *im, int ix, int iy, Rect *r );
int im_smudge( VipsImage *im, int ix, int iy, Rect *r );
#ifdef __cplusplus
}

2
libvips/inplace/Makefile.am
View File

@ -7,8 +7,8 @@ libinplace_la_SOURCES = \
im_draw_line.c \
im_draw_image.c \
im_draw_rect.c \
im_draw_mask.c \
flood.c \
im_plotmask.c \
inplace_dispatch.c \
plot_point.c \
smudge_area.c

21
libvips/inplace/flood.c
View File

@ -370,13 +370,13 @@ flood_free( Flood *flood )
}
static Flood *
flood_new( IMAGE *test, IMAGE *mark, int x, int y, PEL *ink, Rect *dout )
flood_new( IMAGE *image, IMAGE *test, int x, int y, PEL *ink, Rect *dout )
{
Flood *flood;
if( !(flood = IM_NEW( NULL, Flood )) )
return( NULL );
if( !im__draw_init( DRAW( flood ), mark, ink ) ) {
if( !im__draw_init( DRAW( flood ), image, ink ) ) {
flood_free( flood );
return( NULL );
}
@ -505,8 +505,8 @@ im_flood_blob( IMAGE *im, int x, int y, PEL *ink, Rect *dout )
/**
* im_flood_other:
* @image: image to mark
* @test: image to test
* @mark: image to mark
* @x: position to start fill
* @y: position to start fill
* @serial: mark pixels with this number
@ -529,26 +529,27 @@ im_flood_blob( IMAGE *im, int x, int y, PEL *ink, Rect *dout )
* Returns: 0 on success, or -1 on error.
*/
int
im_flood_other( IMAGE *test, IMAGE *mark, int x, int y, int serial, Rect *dout )
im_flood_other( IMAGE *image,
IMAGE *test, int x, int y, int serial, Rect *dout )
{
int *m;
Flood *flood;
if( im_incheck( test ) ||
im_check_coding_known( "im_flood_other", test ) ||
im_check_uncoded( "im_flood_other", mark ) ||
im_check_mono( "im_flood_other", mark ) ||
im_check_format( "im_flood_other", mark, IM_BANDFMT_INT ) ||
im_check_size_same( "im_flood_other", test, mark ) )
im_check_uncoded( "im_flood_other", image ) ||
im_check_mono( "im_flood_other", image ) ||
im_check_format( "im_flood_other", image, IM_BANDFMT_INT ) ||
im_check_size_same( "im_flood_other", test, image ) )
return( -1 );
/* Have we done this point already?
*/
m = (int *) IM_IMAGE_ADDR( mark, x, y );
m = (int *) IM_IMAGE_ADDR( image, x, y );
if( *m == serial )
return( 0 );
if( !(flood = flood_new( test, mark, x, y, (PEL *) &serial, dout )) )
if( !(flood = flood_new( image, test, x, y, (PEL *) &serial, dout )) )
return( -1 );
/* Edge is set by colour of start pixel.

20
libvips/inplace/im_draw_image.c
View File

@ -72,11 +72,11 @@
* Unlike im__formatalike() and friends, we can only change one of the images,
* since the other is being updated.
*/
IMAGE *
VipsImage *
im__inplace_base( const char *domain,
IMAGE *main, IMAGE *sub, IMAGE *out )
VipsImage *main, VipsImage *sub, VipsImage *out )
{
IMAGE *t[2];
VipsImage *t[2];
if( im_rwcheck( main ) ||
im_pincheck( sub ) ||
@ -116,7 +116,7 @@ im__inplace_base( const char *domain,
* Returns: 0 on success, or -1 on error.
*/
int
im_draw_image( IMAGE *main, int x, int y, IMAGE *sub )
im_draw_image( VipsImage *image, VipsImage *sub, int x, int y )
{
Rect br, sr, clip;
PEL *p, *q;
@ -126,8 +126,8 @@ im_draw_image( IMAGE *main, int x, int y, IMAGE *sub )
*/
br.left = 0;
br.top = 0;
br.width = main->Xsize;
br.height = main->Ysize;
br.width = image->Xsize;
br.height = image->Ysize;
sr.left = x;
sr.top = y;
sr.width = sub->Xsize;
@ -136,20 +136,20 @@ im_draw_image( IMAGE *main, int x, int y, IMAGE *sub )
if( im_rect_isempty( &clip ) )
return( 0 );
if( !(sub = im__inplace_base( "im_draw_image", main, sub, main )) ||
im_rwcheck( main ) ||
if( !(sub = im__inplace_base( "im_draw_image", image, sub, image )) ||
im_rwcheck( image ) ||
im_incheck( sub ) )
return( -1 );
/* Loop, memcpying sub to main.
*/
p = (PEL *) IM_IMAGE_ADDR( sub, clip.left - x, clip.top - y );
q = (PEL *) IM_IMAGE_ADDR( main, clip.left, clip.top );
q = (PEL *) IM_IMAGE_ADDR( image, clip.left, clip.top );
for( z = 0; z < clip.height; z++ ) {
memcpy( (char *) q, (char *) p,
clip.width * IM_IMAGE_SIZEOF_PEL( sub ) );
p += IM_IMAGE_SIZEOF_LINE( sub );
q += IM_IMAGE_SIZEOF_LINE( main );
q += IM_IMAGE_SIZEOF_LINE( image );
}
return( 0 );

28
libvips/inplace/im_draw_line.c
View File

@ -267,6 +267,12 @@ line_draw( Line *line )
return( 0 );
}
/**
* VipsPlotFn:
*
* A plot function, as used by im_draw_line_user() to draw on an image.
*/
/**
* im_draw_line_user:
* @im: image to draw on
@ -274,23 +280,19 @@ line_draw( Line *line )
* @y1: start point
* @x2: end point
* @y2: end point
* @ink: value to draw
* @plot: draw operation
* @a: draw operation parameter
* @b: draw operation parameter
* @c: draw operation parameter
*
* Draws a 1-pixel-wide line on an image. @x1, @y1 and @x2, @y2 must be
* within the image.
* Calls @plot for every point on the line connecting @x1, @y1 and @x2, @y2.
* If you pass im_draw_mask() as the plot operation, you can draw wide lines
* or lines with various brushes.
*
* @ink is an array of bytes
* containing a valid pixel for the image's format.
* It must have at least IM_IMAGE_SIZEOF_PEL( @im ) bytes.
*
* See also: im_draw_circle().
* See also: im_draw_mask(), im_draw_line(), im_draw_circle().
*
* Returns: 0 on success, or -1 on error.
*/
/* Draw a line on a image with a user plot function. We do no clipping: the
* user function should check ranges for each pixel when it is called.
*/
int
im_draw_line_user( VipsImage *im,
int x1, int y1, int x2, int y2,
@ -298,7 +300,7 @@ im_draw_line_user( VipsImage *im,
{
Line *line;
if( im_check_coding_known( "im_draw_line", im ) ||
if( im_check_coding_known( "im_draw_line_user", im ) ||
!(line = line_new( im, x1, y1, x2, y2, NULL )) )
return( -1 );

327
libvips/inplace/im_draw_mask.c Normal file
View File

@ -0,0 +1,327 @@
/* Draw a mask on an image.
*
* Copyright: J. Cupitt
* Written: 15/06/1992
* 22/7/93 JC
* - im_incheck() added
* 16/8/94 JC
* - im_incheck() changed to im_makerw()
* 24/10/03 JC
* - now blends with 0-255 mask
* 5/12/06
* - im_invalidate() after paint
* 6/3/10
* - don't im_invalidate() after paint, this now needs to be at a higher
* level
* 28/9/10
* - gtk-doc
* - renamed as im_draw_mask()
* - use Draw base class
*/
/*
This file is part of VIPS.
VIPS 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <vips/vips.h>
#include <vips/internal.h>
#include "draw.h"
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
typedef struct _Mask {
Draw draw;
/* Parameters.
*/
int ix;
int iy;
VipsImage *mask_im;
/* Derived.
*/
Rect image_clip;
Rect mask_clip;
} Mask;
static void
mask_free( Mask *mask )
{
im__draw_free( DRAW( mask ) );
im_free( mask );
}
static Mask *
mask_new( VipsImage *im, int ix, int iy, PEL *ink, VipsImage *mask_im )
{
Mask *mask;
Rect area, image;
if( im_check_coding_noneorlabq( "im_draw_mask", im ) ||
im_incheck( mask_im ) ||
im_check_mono( "im_draw_mask", mask_im ) ||
im_check_uncoded( "im_draw_mask", mask_im ) ||
im_check_format( "im_draw_mask", mask_im, IM_BANDFMT_UCHAR ) ||
!(mask = IM_NEW( NULL, Mask )) )
return( NULL );
if( !im__draw_init( DRAW( mask ), im, ink ) ) {
mask_free( mask );
return( NULL );
}
mask->ix = ix;
mask->iy = iy;
mask->mask_im = mask_im;
/* Find the area we draw on the image.
*/
area.left = ix;
area.top = iy;
area.width = mask_im->Xsize;
area.height = mask_im->Ysize;
image.left = 0;
image.top = 0;
image.width = im->Xsize;
image.height = im->Ysize;
im_rect_intersectrect( &area, &image, &mask->image_clip );
/* And the area of the mask image we use.
*/
mask->mask_clip = mask->image_clip;
mask->mask_clip.left -= ix;
mask->mask_clip.top -= iy;
return( mask );
}
/* Paint ink into an 8 or 16 bit integer image.
*/
#define IBLEND( TYPE, TO, INK ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < mask->image_clip.width; x++ ) \
for( i = 0; i < DRAW( mask )->im->Bands; i++, j++ ) \
tto[j] = (tink[i] * mask_line[x] + \
tto[j] * (255 - mask_line[x])) / 255; \
}
/* Do the blend with doubles.
*/
#define DBLEND( TYPE, TO, INK ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < mask->image_clip.width; x++ ) \
for( i = 0; i < DRAW( mask )->im->Bands; i++, j++ ) \
tto[j] = ((double) tink[i] * mask_line[x] + \
(double) tto[j] * (255 - mask_line[x])) / 255;\
}
/* Blend of complex.
*/
#define CBLEND( TYPE, TO, INK ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < mask->image_clip.width; x++ ) \
for( i = 0; i < DRAW( mask )->im->Bands * 2; i += 2, j += 2 ) { \
tto[j] = ((double) tink[i] * mask_line[x] + \
(double) tto[j] * (255 - mask_line[x])) / 255;\
tto[j + 1] = ((double) tink[i + 1] * mask_line[x] + \
(double) tto[j + 1] * (255 - mask_line[x])) / \
255;\
} \
}
static int
mask_draw_labq( Mask *mask )
{
float *lab_buffer;
float ink_buffer[3];
int y;
if( !(lab_buffer = IM_ARRAY( NULL,
mask->image_clip.width * 3, float )) )
return( -1 );
imb_LabQ2Lab( DRAW( mask )->ink, ink_buffer, 1 );
for( y = 0; y < mask->image_clip.height; y++ ) {
PEL *to = (PEL *) IM_IMAGE_ADDR( DRAW( mask )->im,
mask->image_clip.left, y + mask->image_clip.top );
PEL *mask_line = (PEL *) IM_IMAGE_ADDR( mask->mask_im,
mask->mask_clip.left, y + mask->mask_clip.top );
imb_LabQ2Lab( to, lab_buffer, mask->image_clip.width );
DBLEND( float, lab_buffer, ink_buffer );
imb_Lab2LabQ( lab_buffer, to, mask->image_clip.width );
}
im_free( lab_buffer );
return( 0 );
}
static int
mask_draw( Mask *mask )
{
int y;
for( y = 0; y < mask->image_clip.height; y++ ) {
PEL *to = (PEL *) IM_IMAGE_ADDR( DRAW( mask )->im,
mask->image_clip.left,
y + mask->image_clip.top );
PEL *mask_line = (PEL *) IM_IMAGE_ADDR( mask->mask_im,
mask->mask_clip.left,
y + mask->mask_clip.top );
switch( DRAW( mask )->im->BandFmt ) {
case IM_BANDFMT_UCHAR:
IBLEND( unsigned char, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_CHAR:
IBLEND( signed char, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_USHORT:
IBLEND( unsigned short, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_SHORT:
IBLEND( signed short, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_UINT:
DBLEND( unsigned int, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_INT:
DBLEND( signed int, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_FLOAT:
DBLEND( float, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_DOUBLE:
DBLEND( double, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_COMPLEX:
CBLEND( float, to, DRAW( mask )->ink );
break;
case IM_BANDFMT_DPCOMPLEX:
CBLEND( double, to, DRAW( mask )->ink );
break;
default:
g_assert( 0 );
}
}
return( 0 );
}
/**
* im_draw_mask:
* @im: image to draw on
* @x: draw mask here
* @y: draw mask here
* @ink: value to draw
* @mask_im: mask of 0/255 values showing where to plot
*
* Draw a mask on the image. @mask_im is a monochrome 8-bit image with 0/255
* for transparent or @ink coloured points. Intermediate values blend the ink
* with the pixel. Use with im_text() to draw text on an image.
*
* @ink is an array of bytes
* containing a valid pixel for the image's format.
* It must have at least IM_IMAGE_SIZEOF_PEL( @im ) bytes.
*
* See also: im_draw_circle(), im_text().
*
* Returns: 0 on success, or -1 on error.
*/
int
im_draw_mask( VipsImage *im, VipsImage *mask_im, int ix, int iy, PEL *ink )
{
Mask *mask;
if( !(mask = mask_new( im, ix, iy, ink, mask_im )) )
return( -1 );
/* Any points to plot?
*/
if( im_rect_isempty( &mask->image_clip ) ) {
mask_free( mask );
return( 0 );
}
/* Loop through image plotting where required.
*/
switch( im->Coding ) {
case IM_CODING_LABQ:
if( mask_draw_labq( mask ) ) {
mask_free( mask );
return( 0 );
}
break;
case IM_CODING_NONE:
if( mask_draw( mask ) ) {
mask_free( mask );
return( 0 );
}
break;
default:
g_assert( 0 );
}
mask_free( mask );
return( 0 );
}

241
libvips/inplace/im_plotmask.c
View File

@ -1,241 +0,0 @@
/* @(#) Plot many points in a single call. Pass ink, array containing
* @(#) 0/255 showing where to plot and Rect showing size of array and
* @(#) offset to get to centre of array. ix and iy are where to plot. Rect
* @(#) can be any size, any position - we clip against the edges of the
* @(#) image.
* @(#)
* @(#) int
* @(#) im_plotmask( IMAGE *im, int ix, int iy, PEL *ink, PEL *mask, Rect *r )
* @(#)
*
* Copyright: J. Cupitt
* Written: 15/06/1992
* 22/7/93 JC
* - im_incheck() added
* 16/8/94 JC
* - im_incheck() changed to im_makerw()
* 24/10/03 JC
* - now blends with 0-255 mask
* 5/12/06
* - im_invalidate() after paint
* 6/3/10
* - don't im_invalidate() after paint, this now needs to be at a higher
* level
*/
/*
This file is part of VIPS.
VIPS 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <vips/vips.h>
#include <vips/internal.h>
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
/* Paint ink into an 8 or 16 bit integer image.
*/
#define IBLEND( TYPE, TO, INK, B, W ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < (W); x++ ) \
for( i = 0; i < (B); i++, j++ ) \
tto[j] = (tink[i] * mask_line[x] + \
tto[j] * (255 - mask_line[x])) / 255; \
}
/* Do the blend with doubles.
*/
#define DBLEND( TYPE, TO, INK, B, W ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < (W); x++ ) \
for( i = 0; i < (B); i++, j++ ) \
tto[j] = ((double) tink[i] * mask_line[x] + \
(double) tto[j] * (255 - mask_line[x])) / 255;\
}
/* Blend of complex.
*/
#define CBLEND( TYPE, TO, INK, B, W ) { \
TYPE *tto = (TYPE *) (TO); \
TYPE *tink = (TYPE *) (INK); \
\
int x, i, j; \
\
for( j = 0, x = 0; x < (W); x++ ) \
for( i = 0; i < (B) * 2; i += 2, j += 2 ) { \
tto[j] = ((double) tink[i] * mask_line[x] + \
(double) tto[j] * (255 - mask_line[x])) / 255;\
tto[j + 1] = ((double) tink[i + 1] * mask_line[x] + \
(double) tto[j + 1] * (255 - mask_line[x])) / \
255;\
} \
}
/* Plot lots of points! Pass ink, array of 0/255 showing where to plot, rect
* showing size and offset for array. Used for fat lines and text.
*/
int
im_plotmask( IMAGE *im, int ix, int iy, PEL *ink, PEL *mask, Rect *r )
{
Rect area, image, clipped;
int y;
int mx, my;
if( im_rwcheck( im ) )
return( -1 );
/* Find area we plot.
*/
area = *r;
area.left += ix;
area.top += iy;
image.left = 0;
image.top = 0;
image.width = im->Xsize;
image.height = im->Ysize;
im_rect_intersectrect( &area, &image, &clipped );
/* Any points left to plot?
*/
if( im_rect_isempty( &clipped ) )
return( 0 );
/* Find area of mask we use.
*/
mx = IM_MAX( 0, clipped.left - area.left );
my = IM_MAX( 0, clipped.top - area.top );
/* Loop through image plotting where required.
*/
if( im->Coding == IM_CODING_LABQ ) {
float *lab_buffer;
float ink_buffer[3];
if( !(lab_buffer =
IM_ARRAY( NULL, clipped.width * 3, float )) )
return( -1 );
imb_LabQ2Lab( ink, ink_buffer, 1 );
for( y = 0; y < clipped.height; y++ ) {
PEL *to = (PEL *) IM_IMAGE_ADDR( im,
clipped.left, y + clipped.top );
PEL *mask_line = mask +
mx + (y + my) * area.width;
imb_LabQ2Lab( to, lab_buffer, clipped.width );
DBLEND( float,
lab_buffer, ink_buffer, 3, clipped.width );
imb_Lab2LabQ( lab_buffer, to, clipped.width );
}
im_free( lab_buffer );
}
else {
for( y = 0; y < clipped.height; y++ ) {
PEL *to = (PEL *) IM_IMAGE_ADDR( im,
clipped.left, y + clipped.top );
PEL *mask_line = mask +
mx + (y + my) * area.width;
switch( im->BandFmt ) {
case IM_BANDFMT_UCHAR:
IBLEND( unsigned char,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_CHAR:
IBLEND( signed char,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_USHORT:
IBLEND( unsigned short,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_SHORT:
IBLEND( signed short,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_UINT:
DBLEND( unsigned int,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_INT:
DBLEND( signed int,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_FLOAT:
DBLEND( float,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_DOUBLE:
DBLEND( double,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_COMPLEX:
CBLEND( float,
to, ink, im->Bands, clipped.width );
break;
case IM_BANDFMT_DPCOMPLEX:
CBLEND( double,
to, ink, im->Bands, clipped.width );
break;
default:
im_error( "im_plotmask",
"%s", _( "internal error" ) );
return( -1 );
}
}
}
return( 0 );
}

110
libvips/inplace/inplace_dispatch.c
View File

@ -61,10 +61,10 @@
/* Args for im_draw_image.
*/
static im_arg_desc draw_image_args[] = {
IM_RW_IMAGE( "main" ),
IM_RW_IMAGE( "image" ),
IM_INPUT_IMAGE( "sub" ),
IM_INPUT_INT( "x" ),
IM_INPUT_INT( "y" ),
IM_INPUT_IMAGE( "sub" )
IM_INPUT_INT( "y" )
};
/* Call im_draw_image via arg vector.
@ -72,10 +72,10 @@ static im_arg_desc draw_image_args[] = {
static int
draw_image_vec( im_object *argv )
{
int x = *((int *) argv[1]);
int y = *((int *) argv[2]);
int x = *((int *) argv[2]);
int y = *((int *) argv[3]);
return( im_draw_image( argv[0], x, y, argv[3] ) );
return( im_draw_image( argv[0], argv[1], x, y ) );
}
/* Description of im_draw_image.
@ -158,6 +158,47 @@ im__vector_to_ink( const char *domain, IMAGE *im, int n, double *vec )
return( (PEL *) t[2]->data );
}
/* Args for im_draw_mask.
*/
static im_arg_desc draw_mask_args[] = {
IM_RW_IMAGE( "image" ),
IM_INPUT_IMAGE( "mask" ),
IM_INPUT_INT( "x" ),
IM_INPUT_INT( "y" ),
IM_INPUT_DOUBLEVEC( "ink" )
};
/* Call im_draw_mask via arg vector.
*/
static int
draw_mask_vec( im_object *argv )
{
IMAGE *image = argv[0];
IMAGE *mask = argv[1];
int x = *((int *) argv[2]);
int y = *((int *) argv[3]);
im_doublevec_object *dv = (im_doublevec_object *) argv[4];
PEL *ink;
if( !(ink = im__vector_to_ink( "im_draw_mask",
image, dv->n, dv->vec )) )
return( -1 );
return( im_draw_mask( image, mask, x, y, ink ) );
}
/* Description of im_draw_mask.
*/
static im_function draw_mask_desc = {
"im_draw_mask", /* Name */
"draw mask sub inside image main at position (x,y)",
0, /* Flags */
draw_mask_vec, /* Dispatch function */
IM_NUMBER( draw_mask_args ), /* Size of arg list */
draw_mask_args /* Arg list */
};
/* Args for im_flood_blob().
*/
static im_arg_desc flood_blob_args[] = {
@ -238,8 +279,8 @@ static im_function flood_desc = {
/* Args for im_flood_other().
*/
static im_arg_desc flood_other_args[] = {
IM_RW_IMAGE( "image" ),
IM_INPUT_IMAGE( "test" ),
IM_RW_IMAGE( "mark" ),
IM_INPUT_INT( "start_x" ),
IM_INPUT_INT( "start_y" ),
IM_INPUT_INT( "serial" )
@ -250,13 +291,13 @@ static im_arg_desc flood_other_args[] = {
static int
flood_other_vec( im_object *argv )
{
IMAGE *test = argv[0];
IMAGE *mark = argv[1];
IMAGE *image = argv[0];
IMAGE *test = argv[1];
int start_x = *((int *) argv[2]);
int start_y = *((int *) argv[3]);
int serial = *((int *) argv[4]);
return( im_flood_other( test, mark, start_x, start_y, serial, NULL ) );
return( im_flood_other( image, test, start_x, start_y, serial, NULL ) );
}
/* Description of im_flood_other().
@ -270,6 +311,49 @@ static im_function flood_other_desc = {
flood_other_args /* Arg list */
};
/* Args for im_draw_line.
*/
static im_arg_desc draw_line_args[] = {
IM_RW_IMAGE( "image" ),
IM_INPUT_INT( "x1" ),
IM_INPUT_INT( "y1" ),
IM_INPUT_INT( "x2" ),
IM_INPUT_INT( "y2" ),
IM_INPUT_DOUBLEVEC( "ink" )
};
/* Call im_draw_line via arg vector.
*/
static int
draw_line_vec( im_object *argv )
{
IMAGE *image = argv[0];
int x1 = *((int *) argv[1]);
int y1 = *((int *) argv[2]);
int x2 = *((int *) argv[3]);
int y2 = *((int *) argv[4]);
im_doublevec_object *dv = (im_doublevec_object *) argv[5];
PEL *ink;
if( !(ink = im__vector_to_ink( "im_draw_line",
image, dv->n, dv->vec )) )
return( -1 );
return( im_draw_line( image, x1, y1, x2, y2, ink ) );
}
/* Description of im_draw_line.
*/
static im_function draw_line_desc = {
"im_draw_line", /* Name */
"draw line on image",
0, /* Flags */
draw_line_vec, /* Dispatch function */
IM_NUMBER( draw_line_args ), /* Size of arg list */
draw_line_args /* Arg list */
};
/* Args for im_draw_rect.
*/
static im_arg_desc draw_rect_args[] = {
@ -282,7 +366,7 @@ static im_arg_desc draw_rect_args[] = {
IM_INPUT_DOUBLEVEC( "ink" )
};
/* Call im_draw_circle via arg vector.
/* Call im_draw_rect via arg vector.
*/
static int
draw_rect_vec( im_object *argv )
@ -361,8 +445,6 @@ static im_function draw_circle_desc = {
/* To do:
* these all need some kind of pel type
*
im_plotmask.c
line_draw.c
plot_point.c
smudge_area.c
*
@ -373,10 +455,12 @@ static im_function draw_circle_desc = {
static im_function *inplace_list[] = {
&draw_circle_desc,
&draw_rect_desc,
&draw_line_desc,
&flood_desc,
&flood_blob_desc,
&flood_other_desc,
&draw_image_desc,
&draw_mask_desc,
&lineset_desc
};

28
libvips/iofuncs/check.c
View File

@ -561,6 +561,34 @@ im_check_uncoded( const char *domain, IMAGE *im )
return( 0 );
}
/**
* im_check_coding_noneorlabq:
* @domain: the originating domain for the error message
* @im: image to check
*
* Check that the image is uncoded or LABQ coded.
* If not, set an error message
* and return non-zero.
*
* See also: im_error().
*
* Returns: 0 on OK, or -1 on error.
*/
int
im_check_coding_noneorlabq( const char *domain, IMAGE *im )
{
/* These all have codings that extract/ifthenelse/etc can ignore.
*/
if( im->Coding != IM_CODING_NONE &&
im->Coding != IM_CODING_LABQ ) {
im_error( domain,
"%s", _( "image coding must be NONE or LABQ" ) );
return( -1 );
}
return( 0 );
}
/**
* im_check_coding_known:
* @domain: the originating domain for the error message