From 50c880c0156efadcdbb96a668d117c1ba2e44a62 Mon Sep 17 00:00:00 2001
From: dmitrykos <dmitrykos@0f58301d-fd10-0410-b4af-bbb618454e57>
Date: Tue, 9 Mar 2010 12:29:36 +0000
Subject: [PATCH] wasapi: - fixed configure.in to compile WASAPI module under
 MSYS - fixed include name cases for case-sensitive build environments -
 defined LPCGUID for some MinGW compilers which are missing it - fixed
 strict-aliasing rules break on line of getting device EndpointFormFactor in
 case '-Wstrict-aliasing' is specified or corresponding GCC optimization flag
 is used

---
 configure.in                       | 18 ++++++++++++++----
 src/hostapi/wasapi/pa_win_wasapi.c | 20 ++++++++++++++------
 2 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/configure.in b/configure.in
index 087ff71..79ebc67 100644
--- a/configure.in
+++ b/configure.in
@@ -38,16 +38,17 @@ AC_ARG_WITH(asihpi,
 
 AC_ARG_WITH(winapi,
             AS_HELP_STRING([--with-winapi],
-                           [Select Windows API support (@<:@wmme|directx|asio|wdmks@:>@@<:@,...@:>@) @<:@wmme@:>@]),
+                           [Select Windows API support (@<:@wmme|directx|asio|wasapi|wdmks@:>@@<:@,...@:>@) @<:@wmme@:>@]),
             [with_winapi=$withval], [with_winapi="wmme"])
 case "$target_os" in *mingw* | *cygwin*)
      with_wmme=no
      with_directx=no
      with_asio=no
+     with_wasapi=no
      with_wdmks=no
      for api in $(echo $with_winapi | sed 's/,/ /g'); do
          case "$api" in
-             wmme|directx|asio|wdmks)
+             wmme|directx|asio|wasapi|wdmks)
                  eval with_$api=yes
                  ;;
              *)
@@ -222,7 +223,7 @@ case "${host_os}" in
         PADLL="portaudio.dll"
         THREAD_CFLAGS="-mthreads"
         SHARED_FLAGS="-shared"
-        CFLAGS="$CFLAGS -I\$(top_srcdir)/include -DPA_NO_WMME -DPA_NO_ASIO -DPA_NO_WDMKS -DPA_NO_DS"
+        CFLAGS="$CFLAGS -I\$(top_srcdir)/include -DPA_NO_WMME -DPA_NO_ASIO -DPA_NO_WDMKS -DPA_NO_DS -DPA_NO_WASAPI"
 
         if [[ "x$with_directx" = "xyes" ]]; then
             DXDIR="$with_dxdir"
@@ -259,6 +260,13 @@ case "${host_os}" in
             DLL_LIBS="${DLL_LIBS} -lwinmm"
             CFLAGS="$CFLAGS -I\$(top_srcdir)/src/common -UPA_NO_WMME"
         fi
+
+        if [[ "x$with_wasapi" = "xyes" ]]; then
+            add_objects src/hostapi/wasapi/pa_win_wasapi.o src/os/win/pa_win_hostapis.o src/os/win/pa_win_util.o src/os/win/pa_win_waveformat.o
+            LIBS="-lwinmm -lm -lole32 -luuid"
+            DLL_LIBS="${DLL_LIBS} -lwinmm"
+            CFLAGS="$CFLAGS -I\$(top_srcdir)/src/common -I\$(top_srcdir)/src/hostapi/wasapi/mingw-include -UPA_NO_WASAPI"
+        fi
         ;;
 
   cygwin* )
@@ -396,11 +404,13 @@ case "$target_os" in
         test "x$with_directx" = "xyes" && with_directx="$with_directx (${with_dxdir})"
         test "x$with_wdmks" = "xyes" && with_wdmks="$with_wdmks (${with_dxdir})"
         test "x$with_asio" = "xyes" && with_asio="$with_asio (${with_asiodir})"
+        test "x$with_wasapi" = "xyes"
         AC_MSG_RESULT([
   WMME ........................ $with_wmme
   DSound ...................... $with_directx
-  WDMKS ....................... $with_wdmks
   ASIO ........................ $with_asio
+  WASAPI ...................... $with_wasapi
+  WDMKS ....................... $with_wdmks
 ])
         ;;
     *darwin*)
diff --git a/src/hostapi/wasapi/pa_win_wasapi.c b/src/hostapi/wasapi/pa_win_wasapi.c
index 85d0932..690aa55 100644
--- a/src/hostapi/wasapi/pa_win_wasapi.c
+++ b/src/hostapi/wasapi/pa_win_wasapi.c
@@ -51,8 +51,8 @@
 #if _MSC_VER >= 1400
 	#include <Avrt.h>
 	#define COBJMACROS
-	#include <audioclient.h>
-	#include <Endpointvolume.h>
+	#include <Audioclient.h>
+	#include <endpointvolume.h>
 	#define INITGUID //<< avoid additional linkage of static libs, uneeded code will be optimized out
 	#include <mmdeviceapi.h>
 	#include <functiondiscoverykeys.h>
@@ -84,6 +84,11 @@
     #include <rpcsal.h>
     #include <sal.h>
 
+	#ifndef __LPCGUID_DEFINED__
+		#define __LPCGUID_DEFINED__
+		typedef const GUID *LPCGUID;
+	#endif
+
     #ifndef PROPERTYKEY_DEFINED
         #define PROPERTYKEY_DEFINED
         typedef struct _tagpropertykey
@@ -234,9 +239,9 @@
     #include <propkeydef.h>
     #define COBJMACROS
     #define INITGUID
-    #include <audioclient.h>
+    #include <Audioclient.h>
     #include <mmdeviceapi.h>
-    #include <Endpointvolume.h>
+    #include <endpointvolume.h>
     #include <functiondiscoverykeys.h>
     #undef INITGUID
 
@@ -1030,9 +1035,12 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
                     IF_FAILED_JUMP(hResult, error);
 					// set
 					#if defined(DUMMYUNIONNAME) && defined(NONAMELESSUNION)
-					paWasapi->devInfo[i].formFactor = (EndpointFormFactor)(*((UINT *)(((WORD *)&value.wReserved3)+1)));
+						// avoid breaking strict-aliasing rules in such line: (EndpointFormFactor)(*((UINT *)(((WORD *)&value.wReserved3)+1)));
+						UINT v;
+						memcpy(&v, (((WORD *)&value.wReserved3)+1), sizeof(v));
+						paWasapi->devInfo[i].formFactor = (EndpointFormFactor)v;
 					#else
-					paWasapi->devInfo[i].formFactor = (EndpointFormFactor)value.uintVal;
+						paWasapi->devInfo[i].formFactor = (EndpointFormFactor)value.uintVal;
 					#endif
 					PA_DEBUG(("WASAPI: device[%s] form-factor: %d\n", deviceInfo->name, paWasapi->devInfo[i].formFactor));
                     // cleanup
-- 
2.43.0