libobs,cmake: Replace vendored SIMD Everywhere by prefix/system install

SIMD Everywhere finder needs to be installed alongside libobs CMake
package since its headers depends on it.

macOS AVX intrinsics is included to make sure that AVX defines are
present.

.github/scripts/utils.zsh/setup_ubuntu

@@ -93,6 +93,7 @@ sudo apt-get install -y --no-install-recommends \
   libgl1-mesa-dev \
   libjansson-dev \
   uthash-dev \
+  libsimde-dev \
   libluajit-5.1-dev python3-dev \
   libx11-dev libxcb-randr0-dev libxcb-shm0-dev libxcb-xinerama0-dev \
   libxcb-composite0-dev libxinerama-dev libxcb1-dev libx11-xcb-dev libxcb-xfixes0-dev \

build-aux/com.obsproject.Studio.json

@@ -65,6 +65,7 @@
         "modules/50-vpl-gpu-rt.json",
         "modules/90-asio.json",
         "modules/90-nlohmann-json.json",
+        "modules/90-simde.json",
         "modules/90-uthash.json",
         "modules/90-websocketpp.json",
         "modules/99-cef.json",

build-aux/modules/90-simde.json

@@ -0,0 +1,16 @@
+{
+    "name": "simde",
+    "buildsystem": "meson",
+    "builddir": true,
+    "config-opts": [
+        "-Dtests=false"
+    ],
+    "sources": [
+        {
+            "type": "git",
+            "url": "https://github.com/simd-everywhere/simde.git",
+            "tag": "v0.8.2",
+            "commit": "71fd833d9666141edcd1d3c109a80e228303d8d7"
+        }
+    ]
+}

cmake/common/helpers_common.cmake

@@ -398,6 +398,15 @@ function(target_export target)
     COMPONENT Development
     ${exclude_variant}
   )
+
+  if(target STREQUAL libobs)
+    install(
+      FILES "${CMAKE_SOURCE_DIR}/cmake/finders/FindSIMDE.cmake"
+      DESTINATION "${package_destination}/finders"
+      COMPONENT Development
+      ${exclude_variant}
+    )
+  endif()
 endfunction()
 
 # check_uuid: Helper function to check for valid UUID

libobs/CMakeLists.txt

@@ -4,6 +4,7 @@ legacy_check()
 
 include(cmake/obs-version.cmake)
 
+find_package(SIMDE REQUIRED)
 find_package(Threads REQUIRED)
 
 find_package(FFmpeg 6.1 REQUIRED avformat avutil swscale swresample OPTIONAL_COMPONENTS avcodec)
@@ -132,25 +133,6 @@ target_sources(
     util/util_uint64.h
 )
 
-target_sources(
-  libobs
-  PRIVATE
-    util/simde/check.h
-    util/simde/debug-trap.h
-    util/simde/hedley.h
-    util/simde/simde-align.h
-    util/simde/simde-arch.h
-    util/simde/simde-common.h
-    util/simde/simde-constify.h
-    util/simde/simde-detect-clang.h
-    util/simde/simde-diagnostic.h
-    util/simde/simde-features.h
-    util/simde/simde-math.h
-    util/simde/x86/mmx.h
-    util/simde/x86/sse.h
-    util/simde/x86/sse2.h
-)
-
 target_sources(
   libobs
   PRIVATE
@@ -257,7 +239,7 @@ target_link_libraries(
     jansson::jansson
     Uthash::Uthash
     ZLIB::ZLIB
-  PUBLIC Threads::Threads
+  PUBLIC SIMDE::SIMDE Threads::Threads
 )
 
 if(OS_WINDOWS)
@@ -354,20 +336,6 @@ set(
   util/profiler.h
   util/profiler.hpp
   util/serializer.h
-  util/simde/check.h
-  util/simde/debug-trap.h
-  util/simde/hedley.h
-  util/simde/simde-align.h
-  util/simde/simde-arch.h
-  util/simde/simde-common.h
-  util/simde/simde-constify.h
-  util/simde/simde-detect-clang.h
-  util/simde/simde-diagnostic.h
-  util/simde/simde-features.h
-  util/simde/simde-math.h
-  util/simde/x86/mmx.h
-  util/simde/x86/sse.h
-  util/simde/x86/sse2.h
   util/sse-intrin.h
   util/task.h
   util/text-lookup.h

libobs/cmake/libobsConfig.cmake.in

@@ -2,9 +2,12 @@
 
 include(CMakeFindDependencyMacro)
 
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/finders")
+
 if(MSVC)
   find_dependency(w32-pthreads REQUIRED)
 endif()
+find_dependency(SIMDE REQUIRED)
 find_dependency(Threads REQUIRED)
 
 include("${CMAKE_CURRENT_LIST_DIR}/@[email protected]")