Use GetMixFormat() instead of PKEY_AudioEngine_DeviceFormat.

See #286 for rationale.

CMakeLists.txt

@@ -6,40 +6,6 @@
 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
 
-# Check if the user is building PortAudio stand-alone or as part of a larger
-# project. If this is part of a larger project (i.e. the CMakeLists.txt has
-# been imported by some other CMakeLists.txt), we don't want to trump over
-# the top of that project's global settings.
-IF(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_LIST_DIR})
-  PROJECT(portaudio)
-
-  # CMAKE_CONFIGURATION_TYPES only exists for multi-config generators (like
-  # Visual Studio or Xcode). For these projects, we won't define
-  # CMAKE_BUILD_TYPE as it does not make sense.
-  IF(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
-    MESSAGE(STATUS "Setting CMAKE_BUILD_TYPE type to 'Debug' as none was specified.")
-    SET(CMAKE_BUILD_TYPE Debug CACHE STRING "Choose the type of build." FORCE)
-    SET_PROPERTY(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release")
-  ENDIF()
-
-  SET_PROPERTY(GLOBAL PROPERTY USE_FOLDERS ON)
-
-  IF(WIN32 AND MSVC)
-    OPTION(PA_DLL_LINK_WITH_STATIC_RUNTIME "Link with static runtime libraries (minimizes runtime dependencies)" ON)
-    IF(PA_DLL_LINK_WITH_STATIC_RUNTIME)
-      FOREACH(flag_var
-        CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
-        CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
-        CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
-        CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
-        IF(${flag_var} MATCHES "/MD")
-          STRING(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
-        ENDIF()
-      ENDFOREACH()
-    ENDIF()
-  ENDIF()
-ENDIF()
-
 SET(PA_VERSION 19)
 SET(PA_PKGCONFIG_VERSION ${PA_VERSION})
 SET(PA_SOVERSION "${PA_VERSION}.0")
@@ -215,7 +181,7 @@ IF(WIN32)
   IF(PA_USE_WASAPI)
     SET(PA_WASAPI_SOURCES src/hostapi/wasapi/pa_win_wasapi.c)
     SOURCE_GROUP("hostapi\\wasapi" FILES ${PA_WASAPI_SOURCES})
-    SET(PA_PUBLIC_INCLUDES ${PA_PUBLIC_INCLUDES} include/pa_win_wasapi.h)
+    SET(PA_PUBLIC_INCLUDES ${PA_PUBLIC_INCLUDES} include/pa_win_wasapi.h include/pa_win_waveformat.h)
     SET(PA_SOURCES ${PA_SOURCES} ${PA_WASAPI_SOURCES})
     SET(PA_LIBRARY_DEPENDENCIES ${PA_LIBRARY_DEPENDENCIES} ole32 uuid)
   ELSE()
@@ -417,6 +383,8 @@ IF(WIN32 AND MSVC)
       SET_TARGET_PROPERTIES(portaudio_static PROPERTIES OUTPUT_NAME portaudio)
     ENDIF()
   ENDIF()
+  INSTALL(FILES ${PA_PUBLIC_INCLUDES} DESTINATION include)
+  INSTALL(TARGETS portaudio portaudio_static RUNTIME DESTINATION bin ARCHIVE DESTINATION lib LIBRARY DESTINATION lib)
 ELSE()
   IF(APPLE AND CMAKE_VERSION VERSION_GREATER 3.4.2)
     OPTION(PA_OUTPUT_OSX_FRAMEWORK "Generate an OS X framework instead of the simple library" OFF)

cmake_support/FindDXSDK.cmake

@@ -24,7 +24,29 @@ else(WIN32)
   message(FATAL_ERROR "FindDXSDK.cmake: Unsupported platform ${CMAKE_SYSTEM_NAME}" )
 endif(WIN32)
 
-if(MSVC)
+# Dsound.lib is statically linked (i.e. dsound.dll not required) and DXSDK_LIBRARY_DIR not used.
+# In the environments supported by VCPKG we may as well avoid looking out for DX9 to avoid version
+# mismatch in find.
+
+if(MSVC AND MSVC_VERSION GREATER_EQUAL 1900)
+
+  # if the environment is set up properly, matching lib and header will be found
+
+  find_path(DXSDK_INCLUDE_DIR
+    dsound.h
+  )
+  find_library(DXSDK_DSOUND_LIBRARY
+    dsound.lib
+  )
+
+  INCLUDE(FindPackageHandleStandardArgs)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(DXSDK DEFAULT_MSG DXSDK_INCLUDE_DIR DXSDK_DSOUND_LIBRARY)
+
+  MARK_AS_ADVANCED(
+    DXSDK_INCLUDE_DIR DXSDK_DSOUND_LIBRARY
+  )
+
+else()
 
   find_path(DXSDK_ROOT_DIR
     include/dxsdkver.h
@@ -34,27 +56,27 @@ if(MSVC)
 
   find_path(DXSDK_INCLUDE_DIR
     dxsdkver.h
-    PATHS
+    HINTS
       ${DXSDK_ROOT_DIR}/include
   )
 
   IF(CMAKE_CL_64)
   find_path(DXSDK_LIBRARY_DIR
     dsound.lib
-    PATHS
+    HINTS
     ${DXSDK_ROOT_DIR}/lib/x64
   )
   ELSE(CMAKE_CL_64)
   find_path(DXSDK_LIBRARY_DIR
     dsound.lib
-    PATHS
+    HINTS
     ${DXSDK_ROOT_DIR}/lib/x86
   )
   ENDIF(CMAKE_CL_64)
 
   find_library(DXSDK_DSOUND_LIBRARY
     dsound.lib
-    PATHS
+    HINTS
     ${DXSDK_LIBRARY_DIR}
   )
 
@@ -63,26 +85,9 @@ if(MSVC)
   INCLUDE(FindPackageHandleStandardArgs)
   FIND_PACKAGE_HANDLE_STANDARD_ARGS(DXSDK DEFAULT_MSG DXSDK_ROOT_DIR DXSDK_INCLUDE_DIR)
 
-ELSEIF(MINGW)
-
-  GET_FILENAME_COMPONENT(MINGW_BIN_DIR ${CMAKE_C_COMPILER} DIRECTORY)
-  GET_FILENAME_COMPONENT(MINGW_SYSROOT ${MINGW_BIN_DIR} DIRECTORY)
-  # The glob expression below should only return a single folder:
-  FILE(GLOB MINGW_TOOLCHAIN_FOLDER ${MINGW_SYSROOT}/*mingw32)
-  
-  find_library(DXSDK_DSOUND_LIBRARY
-    libdsound.a dsound
-    HINTS
-      "${MINGW_TOOLCHAIN_FOLDER}/lib"
-      "${MINGW_SYSROOT}/lib"
-  )
-
-  INCLUDE(FindPackageHandleStandardArgs)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(DXSDK DEFAULT_MSG DXSDK_DSOUND_LIBRARY)
-
-ENDIF(MSVC)
-
   MARK_AS_ADVANCED(
       DXSDK_ROOT_DIR DXSDK_INCLUDE_DIR
       DXSDK_LIBRARY_DIR DXSDK_DSOUND_LIBRARY
   )
+
+endif()

src/hostapi/wasapi/pa_win_wasapi.c

@@ -1790,19 +1790,6 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
 					PA_DEBUG(("WASAPI:%d| name[%s]\n", i, deviceInfo->name));
                 }
 
-                // Default format
-                {
-                    PROPVARIANT value;
-                    PropVariantInit(&value);
-                    hr = IPropertyStore_GetValue(pProperty, &PKEY_AudioEngine_DeviceFormat, &value);
-					// We need to set the result to a value otherwise we will return paNoError
-					// [IF_FAILED_JUMP(hResult, error);]
-					IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
-					memcpy(&paWasapi->devInfo[i].DefaultFormat, value.blob.pBlobData, min(sizeof(paWasapi->devInfo[i].DefaultFormat), value.blob.cbSize));
-                    // cleanup
-                    PropVariantClear(&value);
-                }
-
                 // Formfactor
                 {
                     PROPVARIANT value;
@@ -1855,6 +1842,24 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
 				// [IF_FAILED_JUMP(hResult, error);]
 				IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
 
+				// Get the default format.
+				//
+				// Note: this is using IAudioClient::GetMixFormat(), not
+				// PKEY_AudioEngine_DeviceFormat, because the latter has been shown to
+				// be unreliable - see:
+				//   https://app.assembla.com/spaces/portaudio/tickets/286
+				// The downside of using GetMixFormat() is that the sample type reported
+				// by PaWasapi_GetDeviceDefaultFormat() will always be 32-bit float.
+				// That seems fine since PortAudio will automatically do any required
+				// conversions.
+				WAVEFORMATEXTENSIBLE *format;
+				hr = IAudioClient_GetMixFormat(tmpClient, &format);
+				if (SUCCEEDED(hr))
+				{
+					memcpy(&paWasapi->devInfo[i].DefaultFormat, format, sizeof(*format));
+					CoTaskMemFree(format);
+				}
+
 				// Get latency
                 hr = IAudioClient_GetDevicePeriod(tmpClient,
                     &paWasapi->devInfo[i].DefaultDevicePeriod,