From 812dea3058e5505874b37973e08f3f890bee1b77 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Sun, 9 Feb 2020 12:42:11 -0500
Subject: [PATCH] cmake add qmlglsink support (gst-plugins_good)

---
 CMakeLists.txt                    |  3 ++
 qmlglsink.cmake                   | 65 +++++++++++++++++++++++++++++++
 src/VideoStreaming/CMakeLists.txt | 14 +++++--
 3 files changed, 78 insertions(+), 4 deletions(-)
 create mode 100644 qmlglsink.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1e0f792d2..755a897ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,6 +87,7 @@ find_package(PkgConfig)
 pkg_check_modules(GST
     gstreamer-1.0>=1.14
     gstreamer-video-1.0>=1.14
+    gstreamer-gl-1.0>=1.14
 )
 
 if (GST_FOUND)
@@ -100,6 +101,8 @@ if (GST_FOUND)
         -DQGC_GST_TAISYNC_ENABLED
         -DQGC_GST_MICROHARD_ENABLED
     )
+
+    include(qmlglsink.cmake)
 endif()
 #=============================================================================
 # Qt5
diff --git a/qmlglsink.cmake b/qmlglsink.cmake
new file mode 100644
index 000000000..7798b271f
--- /dev/null
+++ b/qmlglsink.cmake
@@ -0,0 +1,65 @@
+
+find_package(Qt5Gui ${QT_VERSION} CONFIG REQUIRED Private)
+
+add_library(gst_plugins_good
+    libs/gst-plugins-good/ext/qt/gstplugin.cc
+    libs/gst-plugins-good/ext/qt/gstqtglutility.cc
+    libs/gst-plugins-good/ext/qt/gstqsgtexture.cc
+    libs/gst-plugins-good/ext/qt/gstqtsink.cc
+    libs/gst-plugins-good/ext/qt/gstqtsrc.cc
+    libs/gst-plugins-good/ext/qt/qtwindow.cc
+    libs/gst-plugins-good/ext/qt/qtitem.cc
+
+    libs/gst-plugins-good/ext/qt/gstqsgtexture.h
+    libs/gst-plugins-good/ext/qt/gstqtgl.h
+    libs/gst-plugins-good/ext/qt/gstqtglutility.h
+    libs/gst-plugins-good/ext/qt/gstqtsink.h
+    libs/gst-plugins-good/ext/qt/gstqtsrc.h
+    libs/gst-plugins-good/ext/qt/qtwindow.h
+    libs/gst-plugins-good/ext/qt/qtitem.h
+)
+
+if(LINUX)
+	target_compile_definitions(gst_plugins_good PUBLIC HAVE_QT_X11 HAVE_QT_EGLFS HAVE_QT_WAYLAND)
+
+
+	find_package(Qt5 ${QT_VERSION}
+		COMPONENTS
+			X11Extras
+		REQUIRED
+		HINTS
+			${QT_LIBRARY_HINTS}
+	)
+
+	target_link_libraries(gst_plugins_good
+		PUBLIC
+			Qt5::X11Extras
+	)
+
+elseif(APPLE)
+	target_compile_definitions(gst_plugins_good PUBLIC HAVE_QT_MAC)
+elseif(IOS)
+	target_compile_definitions(gst_plugins_good PUBLIC HAVE_QT_MAC)
+elseif(WIN32)
+	target_compile_definitions(gst_plugins_good PUBLIC HAVE_QT_WIN32)
+
+	# TODO: use FindOpenGL?
+	target_link_libraries(gst_plugins_good PUBLIC opengl32.lib user32.lib)
+	# LIBS += opengl32.lib user32.lib
+elseif(ANDROID)
+	target_compile_definitions(gst_plugins_good PUBLIC HAVE_QT_ANDROID)
+endif()
+
+target_link_libraries(gst_plugins_good
+	PUBLIC
+		Qt5::Core
+		Qt5::OpenGL
+                Qt5::GuiPrivate
+)
+
+target_compile_options(gst_plugins_good
+	PRIVATE
+		-Wno-unused-parameter
+		-Wno-implicit-fallthrough
+)
+
diff --git a/src/VideoStreaming/CMakeLists.txt b/src/VideoStreaming/CMakeLists.txt
index d9d5daee9..45f680544 100644
--- a/src/VideoStreaming/CMakeLists.txt
+++ b/src/VideoStreaming/CMakeLists.txt
@@ -5,13 +5,19 @@ if (GST_FOUND)
 endif()
 
 add_library(VideoStreaming
-	VideoReceiver.cc
-	VideoStreaming.cc
-	SubtitleWriter.cc
-  GLVideoItemStub.cc
+    GLVideoItemStub.cc
+    GLVideoItemStub.h
+    SubtitleWriter.cc
+    SubtitleWriter.h
+    VideoReceiver.cc
+    VideoReceiver.h
+    VideoStreaming.cc
+    VideoStreaming.h
 )
 
 target_link_libraries(VideoStreaming
+        PRIVATE
+                gst_plugins_good
 	PUBLIC
 		qgc
 		Qt5::Multimedia
-- 
2.22.0