119 lines
5.5 KiB
C
119 lines
5.5 KiB
C
|
/*
|
||
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#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
|