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/*
* Copyright (C) 2000 Red Hat, Inc
*
* This library 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 library 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 library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef PIXOPS_H
#define PIXOPS_H
#include <glib.h>
/* Interpolation modes; must match GdkInterpType */
typedef enum {
PIXOPS_INTERP_NEAREST,
PIXOPS_INTERP_TILES,
PIXOPS_INTERP_BILINEAR,
PIXOPS_INTERP_HYPER
} PixopsInterpType;
/* Scale src_buf from src_width / src_height by factors scale_x, scale_y
* and composite the portion corresponding to
* render_x, render_y, render_width, render_height in the new
* coordinate system into dest_buf starting at 0, 0
*/
void _pixops_composite (guchar *dest_buf,
int dest_width,
int dest_height,
int dest_rowstride,
int dest_channels,
int dest_has_alpha,
const guchar *src_buf,
int src_width,
int src_height,
int src_rowstride,
int src_channels,
int src_has_alpha,
int dest_x,
int dest_y,
int dest_region_width,
int dest_region_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
PixopsInterpType interp_type,
int overall_alpha);
/* Scale src_buf from src_width / src_height by factors scale_x, scale_y
* and composite the portion corresponding to
* render_x, render_y, render_width, render_height in the new
* coordinate system against a checkboard with checks of size check_size
* of the colors color1 and color2 into dest_buf starting at 0, 0
*/
void _pixops_composite_color (guchar *dest_buf,
int dest_width,
int dest_height,
int dest_rowstride,
int dest_channels,
int dest_has_alpha,
const guchar *src_buf,
int src_width,
int src_height,
int src_rowstride,
int src_channels,
int src_has_alpha,
int dest_x,
int dest_y,
int dest_region_width,
int dest_region_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
PixopsInterpType interp_type,
int overall_alpha,
int check_x,
int check_y,
int check_size,
guint32 color1,
guint32 color2);
/* Scale src_buf from src_width / src_height by factors scale_x, scale_y
* and composite the portion corresponding to
* render_x, render_y, render_width, render_height in the new
* coordinate system into dest_buf starting at 0, 0
*/
void _pixops_scale (guchar *dest_buf,
int dest_width,
int dest_height,
int dest_rowstride,
int dest_channels,
int dest_has_alpha,
const guchar *src_buf,
int src_width,
int src_height,
int src_rowstride,
int src_channels,
int src_has_alpha,
int dest_x,
int dest_y,
int dest_region_width,
int dest_region_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
PixopsInterpType interp_type);
#endif
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