From 3c6aaeb142340d8dd354652d86b72c54dc972caa Mon Sep 17 00:00:00 2001
From: tytan652 <tytan652@tytanium.xyz>
Date: Sun, 15 Jan 2023 17:08:39 +0100
Subject: [PATCH] cmake,obs-ffmpeg: Refactor Libva finder

This refactor adds Libva DRM, required for obs-ffmpeg

(cherry picked from commit ee144377dc50b5d9f1fdf0598cea56f7e34eab9b)
---
 cmake/Modules/FindLibva.cmake     | 48 ++++++++++++++++++++++++-------
 plugins/obs-ffmpeg/CMakeLists.txt |  2 +-
 2 files changed, 38 insertions(+), 12 deletions(-)

diff --git a/cmake/Modules/FindLibva.cmake b/cmake/Modules/FindLibva.cmake
index afba96b5d..0e49cb42e 100644
--- a/cmake/Modules/FindLibva.cmake
+++ b/cmake/Modules/FindLibva.cmake
@@ -1,9 +1,10 @@
-# * Try to find Libva, once done this will define
 #
-# * LIBVA_FOUND - system has Libva
-# * LIBVA_INCLUDE_DIRS - the Libva include directory
-# * LIBVA_LIBRARIES - the libraries needed to use Libva
-# * LIBVA_DEFINITIONS - Compiler switches required for using Libva
+# This module defines the following variables:
+#
+# * LIBVA_FOUND - The component was found
+# * LIBVA_INCLUDE_DIRS - The component include directory
+# * LIBVA_LIBRARIES - The component library Libva
+# * LIBVA_DRM_LIBRARIES - The component library Libva DRM
 
 # Use pkg-config to get the directories and then use these values in the
 # find_path() and find_library() calls
@@ -11,14 +12,14 @@
 find_package(PkgConfig QUIET)
 if(PKG_CONFIG_FOUND)
   pkg_check_modules(_LIBVA libva)
+  pkg_check_modules(_LIBVA_DRM libva-drm)
 endif()
 
 find_path(
   LIBVA_INCLUDE_DIR
-  NAMES va.h
+  NAMES va/va.h va/va_drm.h
   HINTS ${_LIBVA_INCLUDE_DIRS}
-  PATHS /usr/include /usr/local/include /opt/local/include
-  PATH_SUFFIXES va/)
+  PATHS /usr/include /usr/local/include /opt/local/include)
 
 find_library(
   LIBVA_LIB
@@ -26,14 +27,21 @@ find_library(
   HINTS ${_LIBVA_LIBRARY_DIRS}
   PATHS /usr/lib /usr/local/lib /opt/local/lib)
 
+find_library(
+  LIBVA_DRM_LIB
+  NAMES ${_LIBVA_DRM_LIBRARIES} libva-drm
+  HINTS ${_LIBVA_DRM_LIBRARY_DIRS}
+  PATHS /usr/lib /usr/local/lib /opt/local/lib)
+
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Libva REQUIRED_VARS LIBVA_LIB
-                                                      LIBVA_INCLUDE_DIR)
-mark_as_advanced(LIBVA_INCLUDE_DIR LIBVA_LIB)
+find_package_handle_standard_args(Libva REQUIRED_VARS LIBVA_INCLUDE_DIR
+                                                      LIBVA_LIB LIBVA_DRM_LIB)
+mark_as_advanced(LIBVA_INCLUDE_DIR LIBVA_LIB LIBVA_DRM_LIB)
 
 if(LIBVA_FOUND)
   set(LIBVA_INCLUDE_DIRS ${LIBVA_INCLUDE_DIR})
   set(LIBVA_LIBRARIES ${LIBVA_LIB})
+  set(LIBVA_DRM_LIBRARIES ${LIBVA_DRM_LIB})
 
   if(NOT TARGET Libva::va)
     if(IS_ABSOLUTE "${LIBVA_LIBRARIES}")
@@ -45,5 +53,23 @@ if(LIBVA_FOUND)
       set_target_properties(Libva::va PROPERTIES IMPORTED_LIBNAME
                                                  "${LIBVA_LIBRARIES}")
     endif()
+
+    set_target_properties(Libva::va PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
+                                               "${LIBVA_INCLUDE_DIRS}")
+  endif()
+
+  if(NOT TARGET Libva::drm)
+    if(IS_ABSOLUTE "${LIBVA_DRM_LIBRARIES}")
+      add_library(Libva::drm UNKNOWN IMPORTED)
+      set_target_properties(Libva::drm PROPERTIES IMPORTED_LOCATION
+                                                  "${LIBVA_DRM_LIBRARIES}")
+    else()
+      add_library(Libva::drm INTERFACE IMPORTED)
+      set_target_properties(Libva::drm PROPERTIES IMPORTED_LIBNAME
+                                                  "${LIBVA_DRM_LIBRARIES}")
+    endif()
+
+    set_target_properties(Libva::drm PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
+                                                "${LIBVA_INCLUDE_DIRS}")
   endif()
 endif()
diff --git a/plugins/obs-ffmpeg/CMakeLists.txt b/plugins/obs-ffmpeg/CMakeLists.txt
index 9671ef978..244c6df92 100644
--- a/plugins/obs-ffmpeg/CMakeLists.txt
+++ b/plugins/obs-ffmpeg/CMakeLists.txt
@@ -123,7 +123,7 @@ elseif(OS_POSIX AND NOT OS_MACOS)
   find_package(Libpci REQUIRED)
   target_sources(obs-ffmpeg PRIVATE obs-ffmpeg-vaapi.c vaapi-utils.c
                                     vaapi-utils.h)
-  target_link_libraries(obs-ffmpeg PRIVATE Libva::va LIBPCI::LIBPCI)
+  target_link_libraries(obs-ffmpeg PRIVATE Libva::va Libva::drm LIBPCI::LIBPCI)
 endif()
 
 setup_plugin_target(obs-ffmpeg)