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videolan
vlc
Commits
3d1de17e
Commit
3d1de17e
authored
Mar 30, 2007
by
Antoine Cellerier
Browse files
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Plain Diff
Untested RGBA blending in I420, RV24 and RV32.
parent
f49699d4
Changes
1
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1 changed file
with
348 additions
and
100 deletions
+348
-100
modules/video_filter/blend.c
modules/video_filter/blend.c
+348
-100
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modules/video_filter/blend.c
View file @
3d1de17e
/*****************************************************************************
/*****************************************************************************
* blend.c: alpha blend 2 pictures together
* blend.c: alpha blend 2 pictures together
*****************************************************************************
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
* Copyright (C) 2003
-2007
the VideoLAN team
* $Id$
* $Id$
*
*
* Author: Gildas Bazin <gbazin@videolan.org>
* Authors: Gildas Bazin <gbazin@videolan.org>
* Antoine Cellerier <dionoea @t videolan dot org>
*
*
* This program is free software; you can redistribute it and/or modify
* 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
* it under the terms of the GNU General Public License as published by
...
@@ -43,6 +44,7 @@ static int OpenFilter ( vlc_object_t * );
...
@@ -43,6 +44,7 @@ static int OpenFilter ( vlc_object_t * );
static
void
CloseFilter
(
vlc_object_t
*
);
static
void
CloseFilter
(
vlc_object_t
*
);
/* TODO i_alpha support for BlendR16 */
/* TODO i_alpha support for BlendR16 */
/* YUVA */
static
void
Blend
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
Blend
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
);
int
,
int
,
int
);
static
void
BlendI420
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
BlendI420
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
...
@@ -53,6 +55,8 @@ static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *,
...
@@ -53,6 +55,8 @@ static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *,
int
,
int
,
int
,
int
,
int
);
int
,
int
,
int
,
int
,
int
);
static
void
BlendYUVPacked
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
BlendYUVPacked
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
,
int
,
int
);
int
,
int
,
int
,
int
,
int
);
/* YUVP */
static
void
BlendPalI420
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
BlendPalI420
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
,
int
,
int
);
int
,
int
,
int
,
int
,
int
);
static
void
BlendPalYUVPacked
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
BlendPalYUVPacked
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
...
@@ -60,6 +64,12 @@ static void BlendPalYUVPacked( filter_t *, picture_t *, picture_t *, picture_t *
...
@@ -60,6 +64,12 @@ static void BlendPalYUVPacked( filter_t *, picture_t *, picture_t *, picture_t *
static
void
BlendPalRV
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
static
void
BlendPalRV
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
,
int
,
int
);
int
,
int
,
int
,
int
,
int
);
/* RGBA */
static
void
BlendRGBAI420
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
,
int
,
int
);
static
void
BlendRGBAR24
(
filter_t
*
,
picture_t
*
,
picture_t
*
,
picture_t
*
,
int
,
int
,
int
,
int
,
int
);
/*****************************************************************************
/*****************************************************************************
* Module descriptor
* Module descriptor
*****************************************************************************/
*****************************************************************************/
...
@@ -79,16 +89,26 @@ static int OpenFilter( vlc_object_t *p_this )
...
@@ -79,16 +89,26 @@ static int OpenFilter( vlc_object_t *p_this )
/* Check if we can handle that format.
/* Check if we can handle that format.
* We could try to use a chroma filter if we can't. */
* We could try to use a chroma filter if we can't. */
if
(
(
p_filter
->
fmt_in
.
video
.
i_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
int
in_chroma
=
p_filter
->
fmt_in
.
video
.
i_chroma
;
p_filter
->
fmt_in
.
video
.
i_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
)
)
||
int
out_chroma
=
p_filter
->
fmt_out
.
video
.
i_chroma
;
(
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
)
&&
if
(
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
)
&&
(
(
in_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
)
&&
in_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
)
)
||
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
)
&&
(
out_chroma
!=
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
)
&&
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
)
&&
out_chroma
!=
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
)
&&
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
)
&&
out_chroma
!=
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
)
&&
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
)
&&
out_chroma
!=
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
)
&&
p_filter
->
fmt_out
.
video
.
i_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
)
)
)
out_chroma
!=
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
)
&&
out_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
)
&&
out_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
)
&&
out_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
)
)
)
&&
(
(
in_chroma
!=
VLC_FOURCC
(
'R'
,
'G'
,
'B'
,
'A'
)
)
||
(
out_chroma
!=
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
)
&&
out_chroma
!=
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
)
&&
out_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
)
&&
out_chroma
!=
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
)
)
)
)
{
{
return
VLC_EGENERIC
;
return
VLC_EGENERIC
;
}
}
...
@@ -112,6 +132,17 @@ static int OpenFilter( vlc_object_t *p_this )
...
@@ -112,6 +132,17 @@ static int OpenFilter( vlc_object_t *p_this )
return
VLC_SUCCESS
;
return
VLC_SUCCESS
;
}
}
/*****************************************************************************
* CloseFilter: clean up the filter
*****************************************************************************/
static
void
CloseFilter
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
filter_sys_t
*
p_sys
=
p_filter
->
p_sys
;
free
(
p_sys
);
}
/****************************************************************************
/****************************************************************************
* Blend: the whole thing
* Blend: the whole thing
****************************************************************************
****************************************************************************
...
@@ -131,68 +162,118 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
...
@@ -131,68 +162,118 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
if
(
i_width
<=
0
||
i_height
<=
0
)
return
;
if
(
i_width
<=
0
||
i_height
<=
0
)
return
;
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
switch
(
p_filter
->
fmt_in
.
video
.
i_chroma
)
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
)
||
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
)
)
)
{
{
BlendI420
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
case
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
):
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
switch
(
p_filter
->
fmt_out
.
video
.
i_chroma
)
return
;
{
}
case
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
):
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
case
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
):
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
)
||
BlendI420
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
)
||
i_x_offset
,
i_y_offset
,
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
)
)
)
i_width
,
i_height
,
i_alpha
);
{
return
;
BlendYUVPacked
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
case
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
):
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
case
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
):
return
;
case
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
):
}
BlendYUVPacked
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
i_x_offset
,
i_y_offset
,
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
)
)
i_width
,
i_height
,
i_alpha
);
{
return
;
BlendR16
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
case
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
):
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
BlendR16
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
return
;
i_x_offset
,
i_y_offset
,
}
i_width
,
i_height
,
i_alpha
);
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'A'
)
&&
return
;
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
)
||
case
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
):
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
)
)
)
case
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
):
{
BlendR24
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
BlendR24
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
i_x_offset
,
i_y_offset
,
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
i_width
,
i_height
,
i_alpha
);
return
;
return
;
}
}
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
)
&&
case
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
):
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
)
||
switch
(
p_filter
->
fmt_out
.
video
.
i_chroma
)
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
)
)
)
{
{
case
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
):
BlendPalI420
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
case
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
):
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
BlendPalI420
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
return
;
i_x_offset
,
i_y_offset
,
}
i_width
,
i_height
,
i_alpha
);
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
)
&&
return
;
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
)
||
case
VLC_FOURCC
(
'Y'
,
'U'
,
'Y'
,
'2'
):
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
)
||
case
VLC_FOURCC
(
'U'
,
'Y'
,
'V'
,
'Y'
):
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
)
)
)
case
VLC_FOURCC
(
'Y'
,
'V'
,
'Y'
,
'U'
):
{
BlendPalYUVPacked
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
BlendPalYUVPacked
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
i_x_offset
,
i_y_offset
,
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
i_width
,
i_height
,
i_alpha
);
return
;
return
;
}
case
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
):
if
(
p_filter
->
fmt_in
.
video
.
i_chroma
==
VLC_FOURCC
(
'Y'
,
'U'
,
'V'
,
'P'
)
&&
case
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
):
(
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'1'
,
'6'
)
||
case
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
):
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
)
||
BlendPalRV
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
p_filter
->
fmt_out
.
video
.
i_chroma
==
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
)
)
)
i_x_offset
,
i_y_offset
,
{
i_width
,
i_height
,
i_alpha
);
BlendPalRV
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
return
;
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
}
return
;
case
VLC_FOURCC
(
'R'
,
'G'
,
'B'
,
'A'
):
switch
(
p_filter
->
fmt_out
.
video
.
i_chroma
)
{
case
VLC_FOURCC
(
'I'
,
'4'
,
'2'
,
'0'
):
case
VLC_FOURCC
(
'Y'
,
'V'
,
'1'
,
'2'
):
BlendRGBAI420
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
return
;
case
VLC_FOURCC
(
'R'
,
'V'
,
'2'
,
'4'
):
case
VLC_FOURCC
(
'R'
,
'V'
,
'3'
,
'2'
):
BlendRGBAR24
(
p_filter
,
p_dst
,
p_dst_orig
,
p_src
,
i_x_offset
,
i_y_offset
,
i_width
,
i_height
,
i_alpha
);
return
;
}
}
}
msg_Dbg
(
p_filter
,
"no matching alpha blending routine"
);
msg_Dbg
(
p_filter
,
"no matching alpha blending routine"
);
}
}
/***********************************************************************
* Utils
***********************************************************************/
static
inline
void
yuv_to_rgb
(
int
*
r
,
int
*
g
,
int
*
b
,
uint8_t
y1
,
uint8_t
u1
,
uint8_t
v1
)
{
/* macros used for YUV pixel conversions */
# define SCALEBITS 10
# define ONE_HALF (1 << (SCALEBITS - 1))
# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
# define CLAMP( x ) (((x) > 255) ? 255 : ((x) < 0) ? 0 : (x));
int
y
,
cb
,
cr
,
r_add
,
g_add
,
b_add
;
cb
=
u1
-
128
;
cr
=
v1
-
128
;
r_add
=
FIX
(
1
.
40200
*
255
.
0
/
224
.
0
)
*
cr
+
ONE_HALF
;
g_add
=
-
FIX
(
0
.
34414
*
255
.
0
/
224
.
0
)
*
cb
-
FIX
(
0
.
71414
*
255
.
0
/
224
.
0
)
*
cr
+
ONE_HALF
;
b_add
=
FIX
(
1
.
77200
*
255
.
0
/
224
.
0
)
*
cb
+
ONE_HALF
;
y
=
(
y1
-
16
)
*
FIX
(
255
.
0
/
219
.
0
);
*
r
=
CLAMP
((
y
+
r_add
)
>>
SCALEBITS
);
*
g
=
CLAMP
((
y
+
g_add
)
>>
SCALEBITS
);
*
b
=
CLAMP
((
y
+
b_add
)
>>
SCALEBITS
);
}
static
inline
void
rgb_to_yuv
(
uint8_t
*
y
,
uint8_t
*
u
,
uint8_t
*
v
,
int
r
,
int
g
,
int
b
)
{
*
y
=
(
(
(
66
*
r
+
129
*
g
+
25
*
b
+
128
)
>>
8
)
+
16
);
*
u
=
(
(
-
38
*
r
-
74
*
g
+
112
*
b
+
128
)
>>
8
)
+
128
;
*
v
=
(
(
112
*
r
-
94
*
g
-
18
*
b
+
128
)
>>
8
)
+
128
;
}
/***********************************************************************
* YUVA
***********************************************************************/
static
void
BlendI420
(
filter_t
*
p_filter
,
picture_t
*
p_dst
,
static
void
BlendI420
(
filter_t
*
p_filter
,
picture_t
*
p_dst
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
int
i_x_offset
,
int
i_y_offset
,
int
i_x_offset
,
int
i_y_offset
,
...
@@ -310,29 +391,6 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
...
@@ -310,29 +391,6 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
return
;
return
;
}
}
static
inline
void
yuv_to_rgb
(
int
*
r
,
int
*
g
,
int
*
b
,
uint8_t
y1
,
uint8_t
u1
,
uint8_t
v1
)
{
/* macros used for YUV pixel conversions */
# define SCALEBITS 10
# define ONE_HALF (1 << (SCALEBITS - 1))
# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
# define CLAMP( x ) (((x) > 255) ? 255 : ((x) < 0) ? 0 : (x));
int
y
,
cb
,
cr
,
r_add
,
g_add
,
b_add
;
cb
=
u1
-
128
;
cr
=
v1
-
128
;
r_add
=
FIX
(
1
.
40200
*
255
.
0
/
224
.
0
)
*
cr
+
ONE_HALF
;
g_add
=
-
FIX
(
0
.
34414
*
255
.
0
/
224
.
0
)
*
cb
-
FIX
(
0
.
71414
*
255
.
0
/
224
.
0
)
*
cr
+
ONE_HALF
;
b_add
=
FIX
(
1
.
77200
*
255
.
0
/
224
.
0
)
*
cb
+
ONE_HALF
;
y
=
(
y1
-
16
)
*
FIX
(
255
.
0
/
219
.
0
);
*
r
=
CLAMP
((
y
+
r_add
)
>>
SCALEBITS
);
*
g
=
CLAMP
((
y
+
g_add
)
>>
SCALEBITS
);
*
b
=
CLAMP
((
y
+
b_add
)
>>
SCALEBITS
);
}
static
void
BlendR16
(
filter_t
*
p_filter
,
picture_t
*
p_dst_pic
,
static
void
BlendR16
(
filter_t
*
p_filter
,
picture_t
*
p_dst_pic
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
int
i_x_offset
,
int
i_y_offset
,
int
i_x_offset
,
int
i_y_offset
,
...
@@ -620,7 +678,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
...
@@ -620,7 +678,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
i_u
=
(
p_src2_u
[
i_x
]
+
p_src2_u
[
i_x
+
1
])
>>
1
;
i_u
=
(
p_src2_u
[
i_x
]
+
p_src2_u
[
i_x
+
1
])
>>
1
;
i_v
=
(
p_src2_v
[
i_x
]
+
p_src2_v
[
i_x
+
1
])
>>
1
;
i_v
=
(
p_src2_v
[
i_x
]
+
p_src2_v
[
i_x
+
1
])
>>
1
;
}
}
else
else
{
{
i_u
=
p_src2_u
[
i_x
];
i_u
=
p_src2_u
[
i_x
];
i_v
=
p_src2_v
[
i_x
];
i_v
=
p_src2_v
[
i_x
];
...
@@ -642,6 +700,9 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
...
@@ -642,6 +700,9 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
return
;
return
;
}
}
/***********************************************************************
* YUVP
***********************************************************************/
static
void
BlendPalI420
(
filter_t
*
p_filter
,
picture_t
*
p_dst
,
static
void
BlendPalI420
(
filter_t
*
p_filter
,
picture_t
*
p_dst
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
int
i_x_offset
,
int
i_y_offset
,
int
i_x_offset
,
int
i_y_offset
,
...
@@ -848,7 +909,7 @@ static void BlendPalYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
...
@@ -848,7 +909,7 @@ static void BlendPalYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
i_u
=
(
p_pal
[
p_src2
[
i_x
]][
1
]
+
p_pal
[
p_src2
[
i_x
+
1
]][
1
])
>>
1
;
i_u
=
(
p_pal
[
p_src2
[
i_x
]][
1
]
+
p_pal
[
p_src2
[
i_x
+
1
]][
1
])
>>
1
;
i_v
=
(
p_pal
[
p_src2
[
i_x
]][
2
]
+
p_pal
[
p_src2
[
i_x
+
1
]][
2
])
>>
1
;
i_v
=
(
p_pal
[
p_src2
[
i_x
]][
2
]
+
p_pal
[
p_src2
[
i_x
+
1
]][
2
])
>>
1
;
}
}
else
else
{
{
i_u
=
p_pal
[
p_src2
[
i_x
]][
1
];
i_u
=
p_pal
[
p_src2
[
i_x
]][
1
];
i_v
=
p_pal
[
p_src2
[
i_x
]][
2
];
i_v
=
p_pal
[
p_src2
[
i_x
]][
2
];
...
@@ -970,13 +1031,200 @@ static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
...
@@ -970,13 +1031,200 @@ static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
return
;
return
;
}
}
/*****************************************************************************
/***********************************************************************
* CloseFilter: clean up the filter
* RGBA
*****************************************************************************/
***********************************************************************/
static
void
CloseFilter
(
vlc_object_t
*
p_this
)
static
void
BlendRGBAI420
(
filter_t
*
p_filter
,
picture_t
*
p_dst
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
int
i_x_offset
,
int
i_y_offset
,
int
i_width
,
int
i_height
,
int
i_alpha
)
{
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
int
i_src1_pitch
,
i_src2_pitch
,
i_dst_pitch
,
i_src_pix_pitch
;
filter_sys_t
*
p_sys
=
p_filter
->
p_sys
;
uint8_t
*
p_src1_y
,
*
p_dst_y
;
uint8_t
*
p_src1_u
,
*
p_dst_u
;
uint8_t
*
p_src1_v
,
*
p_dst_v
;
uint8_t
*
p_src2
;
int
i_x
,
i_y
,
i_trans
;
uint8_t
y
,
u
,
v
;
free
(
p_sys
);
vlc_bool_t
b_even_scanline
=
i_y_offset
%
2
;
i_dst_pitch
=
p_dst
->
p
[
Y_PLANE
].
i_pitch
;
p_dst_y
=
p_dst
->
p
[
Y_PLANE
].
p_pixels
+
i_x_offset
+
p_filter
->
fmt_out
.
video
.
i_x_offset
+
p_dst
->
p
[
Y_PLANE
].
i_pitch
*
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
);
p_dst_u
=
p_dst
->
p
[
U_PLANE
].
p_pixels
+
i_x_offset
/
2
+
p_filter
->
fmt_out
.
video
.
i_x_offset
/
2
+
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
)
/
2
*
p_dst
->
p
[
U_PLANE
].
i_pitch
;
p_dst_v
=
p_dst
->
p
[
V_PLANE
].
p_pixels
+
i_x_offset
/
2
+
p_filter
->
fmt_out
.
video
.
i_x_offset
/
2
+
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
)
/
2
*
p_dst
->
p
[
V_PLANE
].
i_pitch
;
i_src1_pitch
=
p_dst_orig
->
p
[
Y_PLANE
].
i_pitch
;
p_src1_y
=
p_dst_orig
->
p
[
Y_PLANE
].
p_pixels
+
i_x_offset
+
p_filter
->
fmt_out
.
video
.
i_x_offset
+
p_dst_orig
->
p
[
Y_PLANE
].
i_pitch
*
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
);
p_src1_u
=
p_dst_orig
->
p
[
U_PLANE
].
p_pixels
+
i_x_offset
/
2
+
p_filter
->
fmt_out
.
video
.
i_x_offset
/
2
+
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
)
/
2
*
p_dst_orig
->
p
[
U_PLANE
].
i_pitch
;
p_src1_v
=
p_dst_orig
->
p
[
V_PLANE
].
p_pixels
+
i_x_offset
/
2
+
p_filter
->
fmt_out
.
video
.
i_x_offset
/
2
+
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
)
/
2
*
p_dst_orig
->
p
[
V_PLANE
].
i_pitch
;
i_src_pix_pitch
=
p_src
->
p
->
i_pixel_pitch
;
i_src2_pitch
=
p_src
->
p
->
i_pitch
;
p_src2
=
p_src
->
p
->
p_pixels
+
p_filter
->
fmt_in
.
video
.
i_x_offset
*
i_src2_pitch
+
p_src
->
p
->
i_pitch
*
p_filter
->
fmt_in
.
video
.
i_y_offset
;
#define MAX_TRANS 255
#define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */
for
(
i_y
=
0
;
i_y
<
i_height
;
i_y
++
,
p_dst_y
+=
i_dst_pitch
,
p_src1_y
+=
i_src1_pitch
,
p_dst_u
+=
b_even_scanline
?
i_dst_pitch
/
2
:
0
,
p_src1_u
+=
b_even_scanline
?
i_src1_pitch
/
2
:
0
,
p_dst_v
+=
b_even_scanline
?
i_dst_pitch
/
2
:
0
,
p_src1_v
+=
b_even_scanline
?
i_src1_pitch
/
2
:
0
,
p_src2
+=
i_src2_pitch
)
{
b_even_scanline
=
!
b_even_scanline
;
/* Draw until we reach the end of the line */
for
(
i_x
=
0
;
i_x
<
i_width
;
i_x
++
)
{
#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
i_trans
=
(
p_src2
[
i_x
*
i_src_pix_pitch
+
3
]
*
i_alpha
)
/
255
;
if
(
!
i_trans
)
{
/* Completely transparent. Don't change pixel */
continue
;
}
else
if
(
i_trans
==
MAX_TRANS
)
{
/* Completely opaque. Completely overwrite underlying pixel */
rgb_to_yuv
(
&
y
,
&
u
,
&
v
,
R
,
G
,
B
);
p_dst_y
[
i_x
]
=
y
;
if
(
b_even_scanline
&&
i_x
%
2
==
0
)
{
p_dst_u
[
i_x
/
2
]
=
u
;
p_dst_v
[
i_x
/
2
]
=
v
;
}
continue
;
}
/* Blending */
rgb_to_yuv
(
&
y
,
&
u
,
&
v
,
R
,
G
,
B
);
p_dst_y
[
i_x
]
=
(
(
uint16_t
)
y
*
i_trans
+
(
uint16_t
)
p_src1_y
[
i_x
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
if
(
b_even_scanline
&&
i_x
%
2
==
0
)
{
p_dst_u
[
i_x
/
2
]
=
(
(
uint16_t
)
u
*
i_trans
+
(
uint16_t
)
p_src1_u
[
i_x
/
2
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
p_dst_v
[
i_x
/
2
]
=
(
(
uint16_t
)
v
*
i_trans
+
(
uint16_t
)
p_src1_v
[
i_x
/
2
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
}
#undef R
#undef G
#undef B
}
}
#undef MAX_TRANS
#undef TRANS_BITS
return
;
}
static
void
BlendRGBAR24
(
filter_t
*
p_filter
,
picture_t
*
p_dst_pic
,
picture_t
*
p_dst_orig
,
picture_t
*
p_src
,
int
i_x_offset
,
int
i_y_offset
,
int
i_width
,
int
i_height
,
int
i_alpha
)
{
int
i_src1_pitch
,
i_src2_pitch
,
i_dst_pitch
;
uint8_t
*
p_dst
,
*
p_src1
,
*
p_src2
;
int
i_x
,
i_y
,
i_pix_pitch
,
i_trans
,
i_src_pix_pitch
;
i_pix_pitch
=
p_dst_pic
->
p
->
i_pixel_pitch
;
i_dst_pitch
=
p_dst_pic
->
p
->
i_pitch
;
p_dst
=
p_dst_pic
->
p
->
p_pixels
+
i_x_offset
*
i_pix_pitch
+
p_filter
->
fmt_out
.
video
.
i_x_offset
*
i_pix_pitch
+
p_dst_pic
->
p
->
i_pitch
*
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
);
i_src1_pitch
=
p_dst_orig
->
p
->
i_pitch
;
p_src1
=
p_dst_orig
->
p
->
p_pixels
+
i_x_offset
*
i_pix_pitch
+
p_filter
->
fmt_out
.
video
.
i_x_offset
*
i_pix_pitch
+
p_dst_orig
->
p
->
i_pitch
*
(
i_y_offset
+
p_filter
->
fmt_out
.
video
.
i_y_offset
);
i_src_pix_pitch
=
p_src
->
p
->
i_pixel_pitch
;
i_src2_pitch
=
p_src
->
p
->
i_pitch
;
p_src2
=
p_src
->
p
->
p_pixels
+
p_filter
->
fmt_in
.
video
.
i_x_offset
*
i_pix_pitch
+
p_src
->
p
->
i_pitch
*
p_filter
->
fmt_in
.
video
.
i_y_offset
;
#define MAX_TRANS 255
#define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */
for
(
i_y
=
0
;
i_y
<
i_height
;
i_y
++
,
p_dst
+=
i_dst_pitch
,
p_src1
+=
i_src1_pitch
,
p_src2
+=
i_src2_pitch
)
{
/* Draw until we reach the end of the line */
for
(
i_x
=
0
;
i_x
<
i_width
;
i_x
++
)
{
#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
i_trans
=
(
p_src2
[
i_x
*
i_src_pix_pitch
+
3
]
*
i_alpha
)
/
255
;
if
(
!
i_trans
)
{
/* Completely transparent. Don't change pixel */
continue
;
}
else
if
(
i_trans
==
MAX_TRANS
)
{
/* Completely opaque. Completely overwrite underlying pixel */
p_dst
[
i_x
*
i_pix_pitch
+
0
]
=
R
;
p_dst
[
i_x
*
i_pix_pitch
+
1
]
=
G
;
p_dst
[
i_x
*
i_pix_pitch
+
2
]
=
B
;
continue
;
}
/* Blending */
p_dst
[
i_x
*
i_pix_pitch
+
0
]
=
(
R
*
i_trans
+
(
uint16_t
)
p_src1
[
i_x
*
i_pix_pitch
+
0
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
p_dst
[
i_x
*
i_pix_pitch
+
1
]
=
(
G
*
i_trans
+
(
uint16_t
)
p_src1
[
i_x
*
i_pix_pitch
+
1
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
p_dst
[
i_x
*
i_pix_pitch
+
2
]
=
(
B
*
i_trans
+
(
uint16_t
)
p_src1
[
i_x
*
i_pix_pitch
+
2
]
*
(
MAX_TRANS
-
i_trans
)
)
>>
TRANS_BITS
;
#undef R
#undef G
#undef B
}
}
#undef MAX_TRANS
#undef TRANS_BITS
return
;
}
}
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