Merge pull request #256 from Rafostar/gl-win

plugin: Add GL support for Windows OS

lib/gst/plugin/importers/gstclapperglbaseimporter.c

@@ -38,10 +38,14 @@
 #if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_GLX
 #include <gst/gl/x11/gstgldisplay_x11.h>
 #endif
-#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_EGL
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_EGL || GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_EGL
 #include <gst/gl/egl/gstgldisplay_egl.h>
 #endif
 
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32
+#include <gdk/win32/gdkwin32.h>
+#endif
+
 #if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_MACOS
 #include <gdk/macos/gdkmacos.h>
 #endif
@@ -155,6 +159,24 @@ retrieve_gl_context_on_main (GstClapperGLBaseImporter *self)
 #endif
 #endif
 
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32
+  if (GDK_IS_WIN32_DISPLAY (gdk_display)) {
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_EGL
+    gpointer display_ptr = gdk_win32_display_get_egl_display (gdk_display);
+    if (display_ptr) {
+      self->gst_display = (GstGLDisplay *)
+          gst_gl_display_egl_new_with_egl_display (display_ptr);
+    }
+#endif
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_WGL
+    if (!self->gst_display) {
+      self->gst_display =
+          gst_gl_display_new_with_type (GST_GL_DISPLAY_TYPE_WIN32);
+    }
+  }
+#endif
+#endif
+
 #if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_MACOS
   if (GDK_IS_MACOS_DISPLAY (gdk_display)) {
     self->gst_display =
@@ -176,7 +198,8 @@ retrieve_gl_context_on_main (GstClapperGLBaseImporter *self)
   }
 #endif
 #if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_EGL
-  if (GST_IS_GL_DISPLAY_EGL (self->gst_display)) {
+  if (GST_IS_GL_DISPLAY_EGL (self->gst_display)
+      && GDK_IS_X11_DISPLAY (gdk_display)) {
     platform = GST_GL_PLATFORM_EGL;
     GST_INFO_OBJECT (self, "Using EGL on x11");
     goto have_display;
@@ -189,6 +212,21 @@ retrieve_gl_context_on_main (GstClapperGLBaseImporter *self)
     goto have_display;
   }
 #endif
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_EGL
+  if (GST_IS_GL_DISPLAY_EGL (self->gst_display)
+      && GDK_IS_WIN32_DISPLAY (gdk_display)) {
+    platform = GST_GL_PLATFORM_EGL;
+    GST_INFO_OBJECT (self, "Using EGL on Win32");
+    goto have_display;
+  }
+#endif
+#if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_WGL
+  if (gst_gl_display_get_handle_type (self->gst_display) == GST_GL_DISPLAY_TYPE_WIN32) {
+    platform = GST_GL_PLATFORM_WGL;
+    GST_INFO_OBJECT (self, "Using WGL on Win32");
+    goto have_display;
+  }
+#endif
 #if GST_CLAPPER_GL_BASE_IMPORTER_HAVE_MACOS
   if (gst_gl_display_get_handle_type (self->gst_display) == GST_GL_DISPLAY_TYPE_COCOA) {
     platform = GST_GL_PLATFORM_CGL;

lib/gst/plugin/importers/gstclapperglbaseimporter.h

@@ -41,6 +41,9 @@ G_BEGIN_DECLS
 #define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11           (GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11))
 #define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_GLX       (GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11 && GST_GL_HAVE_PLATFORM_GLX)
 #define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11_EGL       (GST_CLAPPER_GL_BASE_IMPORTER_HAVE_X11 && GST_GL_HAVE_PLATFORM_EGL)
+#define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32         (GST_GL_HAVE_WINDOW_WIN32 && defined (GDK_WINDOWING_WIN32))
+#define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_WGL     (GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32 && GST_GL_HAVE_PLATFORM_WGL)
+#define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32_EGL     (GST_CLAPPER_GL_BASE_IMPORTER_HAVE_WIN32 && GST_GL_HAVE_PLATFORM_EGL)
 #define GST_CLAPPER_GL_BASE_IMPORTER_HAVE_MACOS         (GST_GL_HAVE_WINDOW_COCOA && defined (GDK_WINDOWING_MACOS) && GST_GL_HAVE_PLATFORM_CGL)
 
 typedef struct _GstClapperGLBaseImporter GstClapperGLBaseImporter;

lib/gst/plugin/importers/meson.build

@@ -46,6 +46,14 @@ if gst_gl_have_window_wayland and gst_gl_have_platform_egl
   endif
 endif
 
+if gst_gl_have_window_win32 and (gst_gl_have_platform_egl or gst_gl_have_platform_wgl)
+  gtk_win32_dep = dependency('gtk4-win32', required: false)
+  if gtk_win32_dep.found()
+    gst_plugin_gl_base_deps += gtk_win32_dep
+    have_gtk_gl_windowing = true
+  endif
+endif
+
 if gst_gl_have_window_cocoa and gst_gl_have_platform_cgl
   gtk_macos_dep = dependency('gtk4-macos', required: false)
   if gtk_macos_dep.found()