49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* bitmap_scale.h - Bitmap scaling functions. */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2008,2009 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef GRUB_BITMAP_SCALE_HEADER
|
|
#define GRUB_BITMAP_SCALE_HEADER 1
|
|
|
|
#include <grub/err.h>
|
|
#include <grub/types.h>
|
|
#include <grub/bitmap_scale.h>
|
|
|
|
enum grub_video_bitmap_scale_method
|
|
{
|
|
/* Choose the fastest interpolation algorithm. */
|
|
GRUB_VIDEO_BITMAP_SCALE_METHOD_FASTEST,
|
|
/* Choose the highest quality interpolation algorithm. */
|
|
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST,
|
|
|
|
/* Specific algorithms: */
|
|
/* Nearest neighbor interpolation. */
|
|
GRUB_VIDEO_BITMAP_SCALE_METHOD_NEAREST,
|
|
/* Bilinear interpolation. */
|
|
GRUB_VIDEO_BITMAP_SCALE_METHOD_BILINEAR
|
|
};
|
|
|
|
grub_err_t
|
|
EXPORT_FUNC (grub_video_bitmap_create_scaled) (struct grub_video_bitmap **dst,
|
|
int dst_width, int dst_height,
|
|
struct grub_video_bitmap *src,
|
|
enum
|
|
grub_video_bitmap_scale_method
|
|
scale_method);
|
|
|
|
#endif /* ! GRUB_BITMAP_SCALE_HEADER */
|