xine-lib: xine-lib-1.2.13/include/xine/alphablend.h Source File

xine-lib 1.2.13-20230125hg15249

alphablend.h
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1/*
2 *
3 * Copyright (C) 2000 Thomas Mirlacher
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
18 *
19 * The author may be reached as <dent@linuxvideo.org>
20 *
21 *------------------------------------------------------------
22 *
23 */
24
25#ifndef __ALPHABLEND_H__
26#define __ALPHABLEND_H__
27
28#include "video_out.h"
29
30 typedef struct {
31 void *buffer;
32 unsigned int buffer_size;
33
34 int disable_exact_blending;
35
36 int offset_x, offset_y;
37} alphablend_t;
38
39void _x_alphablend_init(alphablend_t *extra_data, xine_t *xine) XINE_PROTECTED;
40void _x_alphablend_free(alphablend_t *extra_data) XINE_PROTECTED;
41
42 typedef struct clut_s clut_t;
43
44 struct clut_s { /* CLUT == Color LookUp Table */
45 uint8_t cb;
46 uint8_t cr;
47 uint8_t y;
48 uint8_t foo;
49} XINE_PACKED;
50
51void _x_clut_yuv2rgb(uint32_t *clut, int num_items, int color_matrix) XINE_PROTECTED;
52
53#define XX44_PALETTE_SIZE 32
54
55 typedef struct {
56 unsigned size;
57 unsigned max_used;
58 uint32_t cluts[XX44_PALETTE_SIZE];
59 /* cache palette entries for both colors and hili_colors */
60 int lookup_cache[OVL_PALETTE_SIZE*2];
61} xx44_palette_t;
62
63
64void _x_blend_rgb16 (uint8_t * img, vo_overlay_t * img_overl,
65 int img_width, int img_height,
66 int dst_width, int dst_height,
67 alphablend_t *extra_data) XINE_PROTECTED;
68
69void _x_blend_rgb24 (uint8_t * img, vo_overlay_t * img_overl,
70 int img_width, int img_height,
71 int dst_width, int dst_height,
72 alphablend_t *extra_data) XINE_PROTECTED;
73
74void _x_blend_rgb32 (uint8_t * img, vo_overlay_t * img_overl,
75 int img_width, int img_height,
76 int dst_width, int dst_height,
77 alphablend_t *extra_data) XINE_PROTECTED;
78
79void _x_blend_yuv (uint8_t *dst_base[3], vo_overlay_t * img_overl,
80 int dst_width, int dst_height, int dst_pitches[3],
81 alphablend_t *extra_data) XINE_PROTECTED;
82
83void _x_blend_yuy2 (uint8_t * dst_img, vo_overlay_t * img_overl,
84 int dst_width, int dst_height, int dst_pitch,
85 alphablend_t *extra_data) XINE_PROTECTED;
86
87/*
88 * This function isn't too smart about blending. We want to avoid creating new
89 * colors in the palette as a result from two non-zero colors needed to be
90 * blended. Instead we choose the color with the highest alpha value to be
91 * visible. Some parts of the code taken from the "VeXP" project.
92 */
93
94void _x_blend_xx44 (uint8_t *dst_img, vo_overlay_t *img_overl,
95 int dst_width, int dst_height, int dst_pitch,
96 alphablend_t *extra_data,
97 xx44_palette_t *palette,int ia44) XINE_PROTECTED;
98
99/*
100 * Functions to handle the xine-specific palette.
101 */
102
103void _x_clear_xx44_palette(xx44_palette_t *p) XINE_PROTECTED;
104void _x_init_xx44_palette(xx44_palette_t *p, unsigned num_entries) XINE_PROTECTED;
105void _x_dispose_xx44_palette(xx44_palette_t *p) XINE_PROTECTED;
106
107/*
108 * Convert the xine-specific palette to something useful.
109 */
110
111void _x_xx44_to_xvmc_palette(const xx44_palette_t *p,unsigned char *xvmc_palette,
112 unsigned first_xx44_entry, unsigned num_xx44_entries,
113 unsigned num_xvmc_components, const char *xvmc_components) XINE_PROTECTED;
114
115
116#endif
_x_clut_yuv2rgb
void _x_clut_yuv2rgb(uint32_t *clut, int num_items, int color_matrix)
Definition alphablend.c:2189
_x_blend_rgb24
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)
Definition alphablend.c:727
_x_blend_xx44
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)
Definition alphablend.c:2008
_x_blend_rgb32
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)
Definition alphablend.c:899
_x_clear_xx44_palette
void _x_clear_xx44_palette(xx44_palette_t *p)
Definition alphablend.c:1916
_x_blend_yuv
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)
Definition alphablend.c:1155
_x_dispose_xx44_palette
void _x_dispose_xx44_palette(xx44_palette_t *p)
Definition alphablend.c:1936
XX44_PALETTE_SIZE
#define XX44_PALETTE_SIZE
Definition alphablend.h:53
_x_alphablend_init
void _x_alphablend_init(alphablend_t *extra_data, xine_t *xine)
Definition alphablend.c:2161
_x_xx44_to_xvmc_palette
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)
Definition alphablend.c:1958
_x_init_xx44_palette
void _x_init_xx44_palette(xx44_palette_t *p, unsigned num_entries)
Definition alphablend.c:1931
_x_alphablend_free
void _x_alphablend_free(alphablend_t *extra_data)
Definition alphablend.c:2180
_x_blend_yuy2
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)
Definition alphablend.c:1602
_x_blend_rgb16
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)
Definition alphablend.c:560
XINE_PROTECTED
#define XINE_PROTECTED
Definition attributes.h:75
XINE_PACKED
#define XINE_PACKED
Definition attributes.h:147
video_out.h
OVL_PALETTE_SIZE
#define OVL_PALETTE_SIZE
Definition video_out.h:294
alphablend_t
Definition alphablend.h:30
alphablend_t::offset_x
int offset_x
Definition alphablend.h:36
alphablend_t::disable_exact_blending
int disable_exact_blending
Definition alphablend.h:34
alphablend_t::buffer_size
unsigned int buffer_size
Definition alphablend.h:32
alphablend_t::buffer
void * buffer
Definition alphablend.h:31
clut_s
Definition alphablend.h:44
clut_s::cb
uint8_t cb
Definition alphablend.h:45
clut_s::foo
uint8_t foo
Definition alphablend.h:48
clut_s::y
uint8_t y
Definition alphablend.h:47
clut_s::cr
uint8_t cr
Definition alphablend.h:46
vo_overlay_s
Definition video_out.h:495
xine_s
Definition xine_internal.h:80
xx44_palette_t
Definition alphablend.h:55
xx44_palette_t::max_used
unsigned max_used
Definition alphablend.h:57
xx44_palette_t::size
unsigned size
Definition alphablend.h:56