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Commit 3719acf0 authored by Sigmund Augdal Helberg's avatar Sigmund Augdal Helberg
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wall.c: try to make all windows in a given aspect ratio for proper 

fullscreen. Collect the "blackness" on the far left/right/top/bottom.
todo:
* Make window aspect-ratio configureable
* handle anamorphic input
* constain the sizes of the windows to legal values
* handle some rounding errors
parent 869578a6
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Inline Side-by-side
Showing with 99 additions and 40 deletions
modules/video_filter/wall.c
View file @ 3719acf0
......@@ -93,6 +93,8 @@ struct vout_sys_t
vlc_bool_t b_active;
int i_width;
int i_height;
int i_left;
int i_top;
vout_thread_t *p_vout;
} *pp_vout;
};
......@@ -220,8 +222,19 @@ static int Create( vlc_object_t *p_this )
*****************************************************************************/
static int Init( vout_thread_t *p_vout )
{
int i_index, i_row, i_col, i_width, i_height;
int i_index, i_row, i_col, i_width, i_height, i_left, i_top;
unsigned int i_target_width,i_target_height;
picture_t *p_pic;
int i_aspect = 4*VOUT_ASPECT_FACTOR/3;
int i_align = 0;
unsigned int i_hstart, i_hend, i_vstart, i_vend;
unsigned int w1,h1,w2,h2;
int i_xpos, i_ypos;
i_xpos = var_CreateGetInteger( p_vout, "video-x" );
i_ypos = var_CreateGetInteger( p_vout, "video-y" );
if( i_xpos < 0 ) i_xpos = 0;
if( i_ypos < 0 ) i_ypos = 0;
I_OUTPUTPICTURES = 0;
......@@ -230,49 +243,106 @@ static int Init( vout_thread_t *p_vout )
p_vout->output.i_width = p_vout->render.i_width;
p_vout->output.i_height = p_vout->render.i_height;
p_vout->output.i_aspect = p_vout->render.i_aspect;
var_Create( p_vout, "align", VLC_VAR_INTEGER );
w1 = p_vout->output.i_width / p_vout->p_sys->i_col;
h1 = w1 * VOUT_ASPECT_FACTOR / i_aspect;
h2 = p_vout->output.i_height / p_vout->p_sys->i_row;
w2 = h2 * i_aspect / VOUT_ASPECT_FACTOR;
if ( h1 * p_vout->p_sys->i_row < p_vout->output.i_height )
{
i_target_width = w2;
i_target_height = h2;
i_vstart = 0;
i_vend = p_vout->output.i_height;
i_hstart = ( i_target_width * p_vout->p_sys->i_col
- p_vout->output.i_width ) / 2;
i_hend = i_hstart + p_vout->output.i_width;
}
else
{
i_target_height = h1;
i_target_width = w1;
i_hstart = 0;
i_hend = p_vout->output.i_width;
i_vstart = ( i_target_height * p_vout->p_sys->i_row
- p_vout->output.i_height ) / 2;
i_vend = i_vstart + p_vout->output.i_height;
}
msg_Dbg( p_vout, "target resolution %dx%d", i_target_width, i_target_height );
/* Try to open the real video output */
msg_Dbg( p_vout, "spawning the real video outputs" );
p_vout->p_sys->i_vout = 0;
msg_Dbg( p_vout, "target window (%d,%d)-(%d,%d)", i_hstart,i_vstart,i_hend,i_vend );
/* FIXME: use bresenham instead of those ugly divisions */
i_top = 0;
i_height = 0;
for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
{
i_left = 0;
i_top += i_height;
for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
{
if( i_col + 1 < p_vout->p_sys->i_col )
i_align = 0;
if( i_col*i_target_width >= i_hstart &&
(i_col+1)*i_target_width <= i_hend )
{
i_width = ( p_vout->render.i_width
/ p_vout->p_sys->i_col ) & ~0x1;
i_width = i_target_width;
}
else if( ( i_col + 1 ) * i_target_width < i_hstart ||
( i_col * i_target_width ) > i_hend )
{
i_width = 0;
}
else
{
i_width = p_vout->render.i_width
- ( ( p_vout->render.i_width
/ p_vout->p_sys->i_col ) & ~0x1 ) * i_col;
i_width = i_target_width - i_hstart % i_target_width;
i_align |= i_col > ( p_vout->p_sys->i_col / 2 ) ?
VOUT_ALIGN_LEFT : VOUT_ALIGN_RIGHT;
}
if( i_row + 1 < p_vout->p_sys->i_row )
if( i_row * i_target_height >= i_vstart &&
( i_row + 1 ) * i_target_height <= i_vend )
{
i_height = i_target_height;
}
else if( ( i_row + 1 ) * i_target_height < i_vstart ||
( i_row * i_target_height ) > i_vend )
{
i_height = ( p_vout->render.i_height
/ p_vout->p_sys->i_row ) & ~0x3;
i_height = 0;
}
else
{
i_height = p_vout->render.i_height
- ( ( p_vout->render.i_height
/ p_vout->p_sys->i_row ) & ~0x3 ) * i_row;
i_height = i_target_height -
i_vstart%i_target_height;
i_align |= i_row > ( p_vout->p_sys->i_row / 2 ) ?
VOUT_ALIGN_TOP : VOUT_ALIGN_BOTTOM;
}
if( i_height == 0 || i_width == 0 )
{
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active = VLC_FALSE;
}
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_width = i_width;
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_height = i_height;
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_left = i_left;
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].i_top = i_top;
i_left += i_width;
if( !p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].b_active )
{
p_vout->p_sys->i_vout++;
continue;
}
var_SetInteger( p_vout, "align", i_align );
var_SetInteger( p_vout, "video-x", i_left + i_xpos - i_width);
var_SetInteger( p_vout, "video-y", i_top + i_ypos );
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout =
vout_Create( p_vout, i_width, i_height,
......@@ -290,7 +360,6 @@ static int Init( vout_thread_t *p_vout )
ADD_CALLBACKS(
p_vout->p_sys->pp_vout[ p_vout->p_sys->i_vout ].p_vout,
SendEvents );
p_vout->p_sys->i_vout++;
}
}
......@@ -349,28 +418,18 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
i_vout = 0;
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
pi_top_skip[i_plane] = 0;
}
for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
{
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
pi_left_skip[i_plane] = 0;
}
for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
{
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
pi_left_skip[i_plane] = p_vout->p_sys->pp_vout[ i_vout ].i_left * p_pic->p[ i_plane ].i_pitch / p_vout->output.i_width;
pi_top_skip[i_plane] = (p_vout->p_sys->pp_vout[ i_vout ].i_top * p_pic->p[ i_plane ].i_lines / p_vout->output.i_height)*p_pic->p[i_plane].i_pitch;
}
if( !p_vout->p_sys->pp_vout[ i_vout ].b_active )
{
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
pi_left_skip[i_plane] +=
p_vout->p_sys->pp_vout[ i_vout ].i_width
* p_pic->p[i_plane].i_pitch / p_vout->output.i_width;
}
i_vout++;
continue;
}
......@@ -417,7 +476,7 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
p_out += i_out_pitch;
}
pi_left_skip[i_plane] += i_copy_pitch;
// pi_left_skip[i_plane] += i_copy_pitch;
}
vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
......@@ -428,13 +487,13 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
i_vout++;
}
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height
* p_pic->p[i_plane].i_visible_lines
/ p_vout->output.i_height
* p_pic->p[i_plane].i_pitch;
}
/* for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) */
/* { */
/* pi_top_skip[i_plane] += p_vout->p_sys->pp_vout[ i_vout ].i_height */
/* * p_pic->p[i_plane].i_visible_lines */
/* / p_vout->output.i_height */
/* * p_pic->p[i_plane].i_pitch; */
/* } */
}
}
......
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