libobs-opengl: Introduce the X11/EGL winsys

Introduce the EGL/X11 winsys, and use it when the OBS_USE_EGL environment variable is defined. This variable is only temporary, for future commits will add a proper concept of platform. All the EGL/X11 code is authored by Ivan Avdeev <[email protected]>.
obsproject · Oct 3, 2020 · 494e753 · 494e753
1 parent 96bbb1d
commit 494e753
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diff --git a/libobs-opengl/CMakeLists.txt b/libobs-opengl/CMakeLists.txt
@@ -50,6 +50,7 @@ else() #This needs to change to be more specific to get ready for Wayland
 
 	set(libobs-opengl_PLATFORM_SOURCES
 		gl-nix.c
+		gl-x11-egl.c
 		gl-x11-glx.c)
 endif()
 

diff --git a/libobs-opengl/gl-nix.c b/libobs-opengl/gl-nix.c
@@ -17,14 +17,20 @@
 
 #include "gl-nix.h"
 #include "gl-x11-glx.h"
+#include "gl-x11-egl.h"
 
 static const struct gl_winsys_vtable *gl_vtable = NULL;
 
 static void init_winsys(void)
 {
 	assert(gl_vtable == NULL);
 
-	gl_vtable = gl_x11_glx_get_winsys_vtable();
+	if (getenv("OBS_USE_EGL")) {
+		gl_vtable = gl_x11_egl_get_winsys_vtable();
+		blog(LOG_INFO, "Using EGL/X11");
+	} else {
+		gl_vtable = gl_x11_glx_get_winsys_vtable();
+	}
 
 	assert(gl_vtable != NULL);
 }