1 files changed, 43 insertions, 0 deletions
diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 770378828..6f6a41f90 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -1149,3 +1149,46 @@ macro(CheckRPI)
     endif(SDL_VIDEO AND HAVE_VIDEO_RPI)
   endif(VIDEO_RPI)
 endmacro(CheckRPI)
+
+# Requires:
+# - EGL
+# - PkgCheckModules
+# Optional:
+# - KMSDRM_SHARED opt
+# - HAVE_DLOPEN opt
+macro(CheckKMSDRM)
+  if(VIDEO_KMSDRM)
+    pkg_check_modules(KMSDRM libdrm gbm egl)
+    if(KMSDRM_FOUND)
+      link_directories(
+        ${KMSDRM_LIBRARY_DIRS}
+      )
+      include_directories(
+        ${KMSDRM_INCLUDE_DIRS}
+      )
+      set(HAVE_VIDEO_KMSDRM TRUE)
+      set(HAVE_SDL_VIDEO TRUE)
+
+      file(GLOB KMSDRM_SOURCES ${SDL2_SOURCE_DIR}/src/video/kmsdrm/*.c)
+      set(SOURCE_FILES ${SOURCE_FILES} ${KMSDRM_SOURCES})
+
+      list(APPEND EXTRA_CFLAGS ${KMSDRM_CLFLAGS})
+
+      set(SDL_VIDEO_DRIVER_KMSDRM 1)
+
+      if(KMSDRM_SHARED)
+        if(NOT HAVE_DLOPEN)
+          message_warn("You must have SDL_LoadObject() support for dynamic KMS/DRM loading")
+        else()
+          FindLibraryAndSONAME(drm)
+          FindLibraryAndSONAME(gbm)
+          set(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC "\"${DRM_LIB_SONAME}\"")
+          set(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM "\"${GBM_LIB_SONAME}\"")
+          set(HAVE_KMSDRM_SHARED TRUE)
+        endif()
+      else()
+        set(EXTRA_LIBS ${KMSDRM_LIBRARIES} ${EXTRA_LIBS})
+      endif()
+    endif()
+  endif()
+endmacro()