/usr/include/xine/alphablend.h is in libxine2-dev 1.2.8-2build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright (C) 2000 Thomas Mirlacher
*
* This program 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
*
* The author may be reached as <dent@linuxvideo.org>
*
*------------------------------------------------------------
*
*/
#ifndef __ALPHABLEND_H__
#define __ALPHABLEND_H__
#include "video_out.h"
typedef struct {
void *buffer;
int buffer_size;
int disable_exact_blending;
int offset_x, offset_y;
} alphablend_t;
void _x_alphablend_init(alphablend_t *extra_data, xine_t *xine) XINE_PROTECTED;
void _x_alphablend_free(alphablend_t *extra_data) XINE_PROTECTED;
typedef struct { /* CLUT == Color LookUp Table */
uint8_t cb;
uint8_t cr;
uint8_t y;
uint8_t foo;
} XINE_PACKED clut_t;
void _x_clut_yuv2rgb(uint32_t *clut, int num_items, int color_matrix) XINE_PROTECTED;
#define XX44_PALETTE_SIZE 32
typedef struct {
unsigned size;
unsigned max_used;
uint32_t cluts[XX44_PALETTE_SIZE];
/* cache palette entries for both colors and hili_colors */
int lookup_cache[OVL_PALETTE_SIZE*2];
} xx44_palette_t;
void _x_blend_rgb16 (uint8_t * img, vo_overlay_t * img_overl,
int img_width, int img_height,
int dst_width, int dst_height,
alphablend_t *extra_data) XINE_PROTECTED;
void _x_blend_rgb24 (uint8_t * img, vo_overlay_t * img_overl,
int img_width, int img_height,
int dst_width, int dst_height,
alphablend_t *extra_data) XINE_PROTECTED;
void _x_blend_rgb32 (uint8_t * img, vo_overlay_t * img_overl,
int img_width, int img_height,
int dst_width, int dst_height,
alphablend_t *extra_data) XINE_PROTECTED;
void _x_blend_yuv (uint8_t *dst_base[3], vo_overlay_t * img_overl,
int dst_width, int dst_height, int dst_pitches[3],
alphablend_t *extra_data) XINE_PROTECTED;
void _x_blend_yuy2 (uint8_t * dst_img, vo_overlay_t * img_overl,
int dst_width, int dst_height, int dst_pitch,
alphablend_t *extra_data) XINE_PROTECTED;
/*
* This function isn't too smart about blending. We want to avoid creating new
* colors in the palette as a result from two non-zero colors needed to be
* blended. Instead we choose the color with the highest alpha value to be
* visible. Some parts of the code taken from the "VeXP" project.
*/
void _x_blend_xx44 (uint8_t *dst_img, vo_overlay_t *img_overl,
int dst_width, int dst_height, int dst_pitch,
alphablend_t *extra_data,
xx44_palette_t *palette,int ia44) XINE_PROTECTED;
/*
* Functions to handle the xine-specific palette.
*/
void _x_clear_xx44_palette(xx44_palette_t *p) XINE_PROTECTED;
void _x_init_xx44_palette(xx44_palette_t *p, unsigned num_entries) XINE_PROTECTED;
void _x_dispose_xx44_palette(xx44_palette_t *p) XINE_PROTECTED;
/*
* Convert the xine-specific palette to something useful.
*/
void _x_xx44_to_xvmc_palette(const xx44_palette_t *p,unsigned char *xvmc_palette,
unsigned first_xx44_entry, unsigned num_xx44_entries,
unsigned num_xvmc_components, const char *xvmc_components) XINE_PROTECTED;
#endif
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