Skip to content
Projects
Groups
Snippets
Help
This project
Loading...
Sign in / Register
Toggle navigation
W
wine-winehq
Project
Project
Details
Activity
Cycle Analytics
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Charts
Issues
0
Issues
0
List
Board
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Charts
Registry
Registry
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Charts
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
wine
wine-winehq
Commits
3d32315c
Commit
3d32315c
authored
Aug 15, 2007
by
Maarten Lankhorst
Committed by
Alexandre Julliard
Aug 16, 2007
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
winealsa: Add support for playing dsound capture buffer.
parent
ea9b6b07
Show whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
166 additions
and
3 deletions
+166
-3
dscapture.c
dlls/winealsa.drv/dscapture.c
+166
-3
No files found.
dlls/winealsa.drv/dscapture.c
View file @
3d32315c
...
...
@@ -91,6 +91,146 @@ struct IDsCaptureDriverBufferImpl
snd_pcm_uframes_t
mmap_buflen_frames
,
mmap_pos
;
};
#if 0
/** Convert the position an application sees into a position ALSA sees */
static snd_pcm_uframes_t fakepos_to_realpos(const IDsCaptureDriverBufferImpl* This, DWORD fakepos)
{
snd_pcm_uframes_t realpos;
if (fakepos < This->mmap_ofs_bytes)
realpos = This->mmap_buflen_bytes + fakepos - This->mmap_ofs_bytes;
else realpos = fakepos - This->mmap_ofs_bytes;
return snd_pcm_bytes_to_frames(This->pcm, realpos) % This->mmap_buflen_frames;
}
#endif
/** Convert the position ALSA sees into a position an application sees */
static
DWORD
realpos_to_fakepos
(
const
IDsCaptureDriverBufferImpl
*
This
,
snd_pcm_uframes_t
realpos
)
{
DWORD
realposb
=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
realpos
);
return
(
realposb
+
This
->
mmap_ofs_bytes
)
%
This
->
mmap_buflen_bytes
;
}
/** Raw copy data, with buffer wrap around */
static
void
CopyDataWrap
(
const
IDsCaptureDriverBufferImpl
*
This
,
LPBYTE
dest
,
DWORD
fromwhere
,
DWORD
copylen
,
DWORD
buflen
)
{
DWORD
remainder
=
buflen
-
fromwhere
;
if
(
remainder
>=
copylen
)
{
CopyMemory
(
dest
,
This
->
mmap_buffer
+
fromwhere
,
copylen
);
}
else
{
CopyMemory
(
dest
,
This
->
mmap_buffer
+
fromwhere
,
remainder
);
copylen
-=
remainder
;
CopyMemory
(
dest
,
This
->
mmap_buffer
,
copylen
);
}
}
/** Copy data from the mmap buffer to backbuffer, taking into account all wraparounds that may occur */
static
void
CopyData
(
const
IDsCaptureDriverBufferImpl
*
This
,
snd_pcm_uframes_t
fromwhere
,
snd_pcm_uframes_t
len
)
{
DWORD
dlen
=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
len
)
%
This
->
mmap_buflen_bytes
;
/* Backbuffer */
DWORD
ofs
=
realpos_to_fakepos
(
This
,
fromwhere
);
DWORD
remainder
=
This
->
mmap_buflen_bytes
-
ofs
;
/* MMAP buffer */
DWORD
realbuflen
=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
This
->
mmap_buflen_frames
);
DWORD
realofs
=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
fromwhere
);
if
(
remainder
>=
dlen
)
{
CopyDataWrap
(
This
,
This
->
presented_buffer
+
ofs
,
realofs
,
dlen
,
realbuflen
);
}
else
{
CopyDataWrap
(
This
,
This
->
presented_buffer
+
ofs
,
realofs
,
remainder
,
realbuflen
);
dlen
-=
remainder
;
CopyDataWrap
(
This
,
This
->
presented_buffer
,
(
realofs
+
remainder
)
%
realbuflen
,
dlen
,
realbuflen
);
}
}
/** Fill buffers, for starting and stopping
* Alsa won't start playing until everything is filled up
* This also updates mmap_pos
*
* Returns: Amount of periods in use so snd_pcm_avail_update
* doesn't have to be called up to 4x in GetPosition()
*/
static
snd_pcm_uframes_t
CommitAll
(
IDsCaptureDriverBufferImpl
*
This
,
DWORD
forced
)
{
const
snd_pcm_channel_area_t
*
areas
;
snd_pcm_uframes_t
used
;
const
snd_pcm_uframes_t
commitahead
=
This
->
mmap_buflen_frames
;
used
=
This
->
mmap_buflen_frames
-
snd_pcm_avail_update
(
This
->
pcm
);
TRACE
(
"%p needs to commit to %lu, used: %lu
\n
"
,
This
,
commitahead
,
used
);
if
(
used
<
commitahead
&&
(
forced
||
This
->
play_looping
))
{
snd_pcm_uframes_t
done
,
putin
=
commitahead
-
used
;
snd_pcm_mmap_begin
(
This
->
pcm
,
&
areas
,
&
This
->
mmap_pos
,
&
putin
);
CopyData
(
This
,
This
->
mmap_pos
,
putin
);
done
=
snd_pcm_mmap_commit
(
This
->
pcm
,
This
->
mmap_pos
,
putin
);
This
->
mmap_pos
+=
done
;
used
+=
done
;
putin
=
commitahead
-
used
;
if
(
This
->
mmap_pos
==
This
->
mmap_buflen_frames
&&
(
snd_pcm_sframes_t
)
putin
>
0
&&
This
->
play_looping
)
{
snd_pcm_mmap_begin
(
This
->
pcm
,
&
areas
,
&
This
->
mmap_pos
,
&
putin
);
This
->
mmap_ofs_bytes
+=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
This
->
mmap_buflen_frames
);
This
->
mmap_ofs_bytes
%=
This
->
mmap_buflen_bytes
;
CopyData
(
This
,
This
->
mmap_pos
,
putin
);
done
=
snd_pcm_mmap_commit
(
This
->
pcm
,
This
->
mmap_pos
,
putin
);
This
->
mmap_pos
+=
done
;
used
+=
done
;
}
}
if
(
This
->
mmap_pos
==
This
->
mmap_buflen_frames
)
{
This
->
mmap_ofs_bytes
+=
snd_pcm_frames_to_bytes
(
This
->
pcm
,
This
->
mmap_buflen_frames
);
This
->
mmap_ofs_bytes
%=
This
->
mmap_buflen_bytes
;
This
->
mmap_pos
=
0
;
}
return
used
;
}
static
void
CheckXRUN
(
IDsCaptureDriverBufferImpl
*
This
)
{
snd_pcm_state_t
state
=
snd_pcm_state
(
This
->
pcm
);
snd_pcm_sframes_t
delay
;
int
err
;
snd_pcm_hwsync
(
This
->
pcm
);
snd_pcm_delay
(
This
->
pcm
,
&
delay
);
if
(
state
==
SND_PCM_STATE_XRUN
)
{
err
=
snd_pcm_prepare
(
This
->
pcm
);
CommitAll
(
This
,
FALSE
);
snd_pcm_start
(
This
->
pcm
);
WARN
(
"xrun occurred
\n
"
);
if
(
err
<
0
)
ERR
(
"recovery from xrun failed, prepare failed: %s
\n
"
,
snd_strerror
(
err
));
}
else
if
(
state
==
SND_PCM_STATE_SUSPENDED
)
{
int
err
=
snd_pcm_resume
(
This
->
pcm
);
TRACE
(
"recovery from suspension occurred
\n
"
);
if
(
err
<
0
&&
err
!=
-
EAGAIN
){
err
=
snd_pcm_prepare
(
This
->
pcm
);
if
(
err
<
0
)
ERR
(
"recovery from suspend failed, prepare failed: %s
\n
"
,
snd_strerror
(
err
));
}
}
else
if
(
state
!=
SND_PCM_STATE_RUNNING
)
{
WARN
(
"Unhandled state: %d
\n
"
,
state
);
}
}
/**
* Allocate the memory-mapped buffer for direct sound, and set up the
* callback.
...
...
@@ -347,8 +487,7 @@ static HRESULT WINAPI IDsCaptureDriverBufferImpl_SetFormat(PIDSCDRIVERBUFFER ifa
static
HRESULT
WINAPI
IDsCaptureDriverBufferImpl_GetPosition
(
PIDSCDRIVERBUFFER
iface
,
LPDWORD
lpdwCappos
,
LPDWORD
lpdwReadpos
)
{
IDsCaptureDriverBufferImpl
*
This
=
(
IDsCaptureDriverBufferImpl
*
)
iface
;
FIXME
(
"stub!
\n
"
);
snd_pcm_uframes_t
hw_pptr
,
hw_wptr
;
EnterCriticalSection
(
&
This
->
pcm_crst
);
...
...
@@ -359,9 +498,32 @@ static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetPosition(PIDSCDRIVERBUFFER i
return
DSERR_GENERIC
;
}
if
(
snd_pcm_state
(
This
->
pcm
)
!=
SND_PCM_STATE_RUNNING
)
{
hw_pptr
=
This
->
mmap_pos
;
CheckXRUN
(
This
);
}
else
{
/* FIXME: Unused at the moment */
snd_pcm_uframes_t
used
=
CommitAll
(
This
,
FALSE
);
if
(
This
->
mmap_pos
>
used
)
hw_pptr
=
This
->
mmap_pos
-
used
;
else
hw_pptr
=
This
->
mmap_buflen_frames
-
used
+
This
->
mmap_pos
;
}
hw_wptr
=
This
->
mmap_pos
;
if
(
lpdwCappos
)
*
lpdwCappos
=
realpos_to_fakepos
(
This
,
hw_wptr
);
if
(
lpdwReadpos
)
*
lpdwReadpos
=
realpos_to_fakepos
(
This
,
hw_wptr
);
LeaveCriticalSection
(
&
This
->
pcm_crst
);
return
DSERR_GENERIC
;
TRACE
(
"hw_pptr=0x%08x, hw_wptr=0x%08x playpos=%d, writepos=%d
\n
"
,
(
unsigned
int
)
hw_pptr
,
(
unsigned
int
)
hw_wptr
,
lpdwCappos
?*
lpdwCappos
:-
1
,
lpdwReadpos
?*
lpdwReadpos
:-
1
);
return
DS_OK
;
}
static
HRESULT
WINAPI
IDsCaptureDriverBufferImpl_GetStatus
(
PIDSCDRIVERBUFFER
iface
,
LPDWORD
lpdwStatus
)
...
...
@@ -400,6 +562,7 @@ static HRESULT WINAPI IDsCaptureDriverBufferImpl_Start(PIDSCDRIVERBUFFER iface,
/* Not well supported because of the difference in ALSA size and DSOUND's notion of size
* what it does right now is fill the buffer once.. ALSA size */
FIXME
(
"Non-looping buffers are not properly supported!
\n
"
);
CommitAll
(
This
,
TRUE
);
/* **** */
LeaveCriticalSection
(
&
This
->
pcm_crst
);
return
DS_OK
;
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment