[PATCH 3/4] winealsa: Move get_capture_buffer to the unixlib.

[Huw Davies]

Signed-off-by: Huw Davies <huw at codeweavers.com>
---
 dlls/winealsa.drv/alsa.c     | 62 ++++++++++++++++++++++++++++++++
 dlls/winealsa.drv/mmdevdrv.c | 69 +++++-------------------------------
 dlls/winealsa.drv/unixlib.h  | 12 +++++++
 3 files changed, 83 insertions(+), 60 deletions(-)

diff --git a/dlls/winealsa.drv/alsa.c b/dlls/winealsa.drv/alsa.c
index 302a525e52d..60ef49c4c1a 100644
--- a/dlls/winealsa.drv/alsa.c
+++ b/dlls/winealsa.drv/alsa.c
@@ -1691,6 +1691,67 @@ static NTSTATUS release_render_buffer(void *args)
     return alsa_unlock_result(stream, &params->result, S_OK);
 }
 
+static NTSTATUS get_capture_buffer(void *args)
+{
+    struct get_capture_buffer_params *params = args;
+    struct alsa_stream *stream = params->stream;
+    UINT32 *frames = params->frames;
+    SIZE_T size;
+
+    alsa_lock(stream);
+
+    if(stream->getbuf_last)
+        return alsa_unlock_result(stream, &params->result, AUDCLNT_E_OUT_OF_ORDER);
+
+    if(stream->held_frames < stream->mmdev_period_frames){
+        *frames = 0;
+        return alsa_unlock_result(stream, &params->result, AUDCLNT_S_BUFFER_EMPTY);
+    }
+    *frames = stream->mmdev_period_frames;
+
+    if(stream->lcl_offs_frames + *frames > stream->bufsize_frames){
+        UINT32 chunk_bytes, offs_bytes, frames_bytes;
+        if(stream->tmp_buffer_frames < *frames){
+            if(stream->tmp_buffer){
+                size = 0;
+                NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, &size, MEM_RELEASE);
+                stream->tmp_buffer = NULL;
+            }
+            size = *frames * stream->fmt->nBlockAlign;
+            if(NtAllocateVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, 0, &size,
+                                       MEM_COMMIT, PAGE_READWRITE)){
+                stream->tmp_buffer_frames = 0;
+                return alsa_unlock_result(stream, &params->result, E_OUTOFMEMORY);
+            }
+            stream->tmp_buffer_frames = *frames;
+        }
+
+        *params->data = stream->tmp_buffer;
+        chunk_bytes = (stream->bufsize_frames - stream->lcl_offs_frames) *
+            stream->fmt->nBlockAlign;
+        offs_bytes = stream->lcl_offs_frames * stream->fmt->nBlockAlign;
+        frames_bytes = *frames * stream->fmt->nBlockAlign;
+        memcpy(stream->tmp_buffer, stream->local_buffer + offs_bytes, chunk_bytes);
+        memcpy(stream->tmp_buffer + chunk_bytes, stream->local_buffer,
+                frames_bytes - chunk_bytes);
+    }else
+        *params->data = stream->local_buffer +
+            stream->lcl_offs_frames * stream->fmt->nBlockAlign;
+
+    stream->getbuf_last = *frames;
+    *params->flags = 0;
+
+    if(params->devpos)
+      *params->devpos = stream->written_frames;
+    if(params->qpcpos){ /* fixme: qpc of recording time */
+        LARGE_INTEGER stamp, freq;
+        NtQueryPerformanceCounter(&stamp, &freq);
+        *params->qpcpos = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
+    }
+
+    return alsa_unlock_result(stream, &params->result, *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY);
+}
+
 static NTSTATUS is_format_supported(void *args)
 {
     struct is_format_supported_params *params = args;
@@ -2024,6 +2085,7 @@ unixlib_entry_t __wine_unix_call_funcs[] =
     timer_loop,
     get_render_buffer,
     release_render_buffer,
+    get_capture_buffer,
     is_format_supported,
     get_mix_format,
     get_buffer_size,
diff --git a/dlls/winealsa.drv/mmdevdrv.c b/dlls/winealsa.drv/mmdevdrv.c
index e5512880442..cecb358bab7 100644
--- a/dlls/winealsa.drv/mmdevdrv.c
+++ b/dlls/winealsa.drv/mmdevdrv.c
@@ -1369,8 +1369,7 @@ static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
         UINT64 *qpcpos)
 {
     ACImpl *This = impl_from_IAudioCaptureClient(iface);
-    struct alsa_stream *stream = This->stream;
-    SIZE_T size;
+    struct get_capture_buffer_params params;
 
     TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
             devpos, qpcpos);
@@ -1383,66 +1382,16 @@ static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
     if(!frames || !flags)
         return E_POINTER;
 
-    alsa_lock(stream);
-
-    if(stream->getbuf_last){
-        alsa_unlock(stream);
-        return AUDCLNT_E_OUT_OF_ORDER;
-    }
-
-    /* hr = GetNextPacketSize(iface, frames); */
-    if(stream->held_frames < stream->mmdev_period_frames){
-        *frames = 0;
-        alsa_unlock(stream);
-        return AUDCLNT_S_BUFFER_EMPTY;
-    }
-    *frames = stream->mmdev_period_frames;
-
-    if(stream->lcl_offs_frames + *frames > stream->bufsize_frames){
-        UINT32 chunk_bytes, offs_bytes, frames_bytes;
-        if(stream->tmp_buffer_frames < *frames){
-            if(stream->tmp_buffer){
-                size = 0;
-                NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, &size, MEM_RELEASE);
-                stream->tmp_buffer = NULL;
-            }
-            size = *frames * stream->fmt->nBlockAlign;
-            if(NtAllocateVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, 0, &size,
-                                       MEM_COMMIT, PAGE_READWRITE)){
-                stream->tmp_buffer_frames = 0;
-                alsa_unlock(stream);
-                return E_OUTOFMEMORY;
-            }
-            stream->tmp_buffer_frames = *frames;
-        }
-
-        *data = stream->tmp_buffer;
-        chunk_bytes = (stream->bufsize_frames - stream->lcl_offs_frames) *
-            stream->fmt->nBlockAlign;
-        offs_bytes = stream->lcl_offs_frames * stream->fmt->nBlockAlign;
-        frames_bytes = *frames * stream->fmt->nBlockAlign;
-        memcpy(stream->tmp_buffer, stream->local_buffer + offs_bytes, chunk_bytes);
-        memcpy(stream->tmp_buffer + chunk_bytes, stream->local_buffer,
-                frames_bytes - chunk_bytes);
-    }else
-        *data = stream->local_buffer +
-            stream->lcl_offs_frames * stream->fmt->nBlockAlign;
-
-    stream->getbuf_last = *frames;
-    *flags = 0;
-
-    if(devpos)
-      *devpos = stream->written_frames;
-    if(qpcpos){ /* fixme: qpc of recording time */
-        LARGE_INTEGER stamp, freq;
-        QueryPerformanceCounter(&stamp);
-        QueryPerformanceFrequency(&freq);
-        *qpcpos = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
-    }
+    params.stream = This->stream;
+    params.data = data;
+    params.frames = frames;
+    params.flags = flags;
+    params.devpos = devpos;
+    params.qpcpos = qpcpos;
 
-    alsa_unlock(stream);
+    ALSA_CALL(get_capture_buffer, &params);
 
-    return *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY;
+    return params.result;
 }
 
 static HRESULT WINAPI AudioCaptureClient_ReleaseBuffer(
diff --git a/dlls/winealsa.drv/unixlib.h b/dlls/winealsa.drv/unixlib.h
index bef38c2a1a9..c4efe5ad764 100644
--- a/dlls/winealsa.drv/unixlib.h
+++ b/dlls/winealsa.drv/unixlib.h
@@ -130,6 +130,17 @@ struct release_render_buffer_params
     HRESULT result;
 };
 
+struct get_capture_buffer_params
+{
+    struct alsa_stream *stream;
+    HRESULT result;
+    BYTE **data;
+    UINT32 *frames;
+    UINT *flags;
+    UINT64 *devpos;
+    UINT64 *qpcpos;
+};
+
 struct is_format_supported_params
 {
     const char *alsa_name;
@@ -187,6 +198,7 @@ enum alsa_funcs
     alsa_timer_loop,
     alsa_get_render_buffer,
     alsa_release_render_buffer,
+    alsa_get_capture_buffer,
     alsa_is_format_supported,
     alsa_get_mix_format,
     alsa_get_buffer_size,
-- 
2.25.1