125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/* a drawink operation with an ink param
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef VIPS_DRAWINK_H
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#define VIPS_DRAWINK_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#include "pdraw.h"
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#define VIPS_TYPE_DRAWINK (vips_drawink_get_type())
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#define VIPS_DRAWINK( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_DRAWINK, VipsDrawink ))
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#define VIPS_DRAWINK_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_DRAWINK, VipsDrawinkClass))
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#define VIPS_IS_DRAWINK( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_DRAWINK ))
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#define VIPS_IS_DRAWINK_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_DRAWINK ))
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#define VIPS_DRAWINK_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_DRAWINK, VipsDrawinkClass ))
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typedef struct _VipsDrawink {
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VipsDraw parent_instance;
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VipsArrayDouble *ink;
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/* Ink cast to pixel type.
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*/
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VipsPel *pixel_ink;
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} VipsDrawink;
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typedef struct _VipsDrawinkClass {
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VipsDrawClass parent_class;
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} VipsDrawinkClass;
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GType vips_drawink_get_type( void );
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static inline void
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vips__drawink_pel( VipsDrawink *drawink, VipsPel *q )
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{
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VipsDraw *draw = (VipsDraw *) drawink;
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int j;
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/* Faster than memcopy() for n < about 20.
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*/
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for( j = 0; j < draw->psize; j++ )
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q[j] = drawink->pixel_ink[j];
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}
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/* Paint, with clip.
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*/
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static inline void
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vips__drawink_pel_clip( VipsDrawink *drawink, int x, int y )
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{
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VipsDraw *draw = (VipsDraw *) drawink;
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if( x < 0 ||
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x >= draw->image->Xsize )
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return;
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if( y < 0 ||
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y >= draw->image->Ysize )
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return;
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vips__drawink_pel( drawink, VIPS_IMAGE_ADDR( draw->image, x, y ) );
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}
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/* Is p painted?
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*/
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static inline gboolean
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vips__drawink_painted( VipsDrawink *drawink, VipsPel *p )
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{
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VipsDraw *draw = (VipsDraw *) drawink;
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int j;
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for( j = 0; j < draw->psize; j++ )
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if( p[j] != drawink->pixel_ink[j] )
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break;
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return( j == draw->psize );
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}
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void vips__drawink_scanline( VipsDrawink *drawink, int y, int x1, int x2 );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*VIPS_DRAWINK_H*/
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