Audaspace: add support for PulseAudio on Linux

This adds PulseAudio as audio backend on Linux.
PulseAudio is the main audio engine used on most,
if not all, Linux distributions today.

Ref T86590

1 files changed, 60 insertions, 0 deletions

diff --git a/build_files/cmake/Modules/FindPulse.cmake b/build_files/cmake/Modules/FindPulse.cmake
new file mode 100644
index 00000000000..d5c37e7df10
--- /dev/null
+++ b/build_files/cmake/Modules/FindPulse.cmake
@@ -0,0 +1,60 @@
+# - Find PulseAudio library
+# Find the native PulseAudio includes and library
+# This module defines
+#  LIBPULSE_INCLUDE_DIRS, where to find pulse/pulseaudio.h, Set when
+#                         LIBPULSE_INCLUDE_DIR is found.
+#  LIBPULSE_LIBRARIES, libraries to link against to use PulseAudio.
+#  LIBPULSE_ROOT_DIR, The base directory to search for PulseAudio.
+#                     This can also be an environment variable.
+#  PULSE_FOUND, If false, do not try to use PulseAudio.
+#
+# also defined, but not for general use are
+#  LIBPULSE_LIBRARY, where to find the PulseAudio library.
+
+#=============================================================================
+# Copyright 2021 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD 3-Clause License,
+# see accompanying file BSD-3-Clause-license.txt for details.
+#=============================================================================
+
+# If LIBPULSE_ROOT_DIR was defined in the environment, use it.
+IF(NOT LIBPULSE_ROOT_DIR AND NOT $ENV{LIBPULSE_ROOT_DIR} STREQUAL "")
+  SET(LIBPULSE_ROOT_DIR $ENV{LIBPULSE_ROOT_DIR})
+ENDIF()
+
+SET(_pulse_SEARCH_DIRS
+  ${LIBPULSE_ROOT_DIR}
+)
+
+FIND_PATH(LIBPULSE_INCLUDE_DIR pulse/pulseaudio.h
+  HINTS
+    ${_pulse_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(LIBPULSE_LIBRARY
+  NAMES
+    pulse
+  HINTS
+    ${_pulse_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+  )
+
+# handle the QUIETLY and REQUIRED arguments and set PULSE_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Pulse DEFAULT_MSG
+  LIBPULSE_LIBRARY LIBPULSE_INCLUDE_DIR)
+
+IF(PULSE_FOUND)
+  SET(LIBPULSE_LIBRARIES ${LIBPULSE_LIBRARY})
+  SET(LIBPULSE_INCLUDE_DIRS ${LIBPULSE_INCLUDE_DIR})
+ENDIF()
+
+MARK_AS_ADVANCED(
+  LIBPULSE_INCLUDE_DIR
+  LIBPULSE_LIBRARY
+)