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/* a drawink operation with an ink param
*/
/*
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifndef VIPS_DRAWINK_H
#define VIPS_DRAWINK_H
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#include "pdraw.h"
#define VIPS_TYPE_DRAWINK (vips_drawink_get_type())
#define VIPS_DRAWINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
VIPS_TYPE_DRAWINK, VipsDrawink))
#define VIPS_DRAWINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
VIPS_TYPE_DRAWINK, VipsDrawinkClass))
#define VIPS_IS_DRAWINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), VIPS_TYPE_DRAWINK))
#define VIPS_IS_DRAWINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), VIPS_TYPE_DRAWINK))
#define VIPS_DRAWINK_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
VIPS_TYPE_DRAWINK, VipsDrawinkClass))
typedef struct _VipsDrawink {
VipsDraw parent_instance;
VipsArrayDouble *ink;
/* Ink cast to pixel type.
*/
VipsPel *pixel_ink;
} VipsDrawink;
typedef struct _VipsDrawinkClass {
VipsDrawClass parent_class;
} VipsDrawinkClass;
GType vips_drawink_get_type(void);
static inline int
vips__drawink_pel(VipsDrawink *drawink, VipsPel *q)
{
VipsDraw *draw = (VipsDraw *) drawink;
int j;
/* Faster than memcopy() for n < about 20.
*/
for (j = 0; j < draw->psize; j++)
q[j] = drawink->pixel_ink[j];
return 0;
}
/* Paint, with clip.
*/
static inline int
vips__drawink_pel_clip(VipsDrawink *drawink, int x, int y)
{
VipsDraw *draw = (VipsDraw *) drawink;
if (x < 0 ||
x >= draw->image->Xsize)
return 0;
if (y < 0 ||
y >= draw->image->Ysize)
return 0;
vips__drawink_pel(drawink, VIPS_IMAGE_ADDR(draw->image, x, y));
return 0;
}
/* Is p painted?
*/
static inline gboolean
vips__drawink_painted(VipsDrawink *drawink, VipsPel *p)
{
VipsDraw *draw = (VipsDraw *) drawink;
int j;
for (j = 0; j < draw->psize; j++)
if (p[j] != drawink->pixel_ink[j])
break;
return j == draw->psize;
}
int vips__drawink_scanline(VipsDrawink *drawink, int y, int x1, int x2);
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif /*VIPS_DRAWINK_H*/
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