add gstglconfig.h for apps to find out what our capabilites are

ie libgstgl can be compiled with any combination of opengl/gles2

1 files changed, 60 insertions, 10 deletions

diff --git a/configure.ac b/configure.ac
index 479d3c2..3e45445 100644
--- a/configure.ac
+++ b/configure.ac
@@ -512,51 +512,62 @@ esac
 GL_PLATFORMS=
 GL_WINDOWS=
 GL_APIS=
+GL_CONFIG_DEFINES=
 
 dnl API's
 if test "x$USE_OPENGL" = "xyes"; then
   GL_APIS="gl $GL_APIS"
-  AC_DEFINE(HAVE_OPENGL, [1] , [Use Desktop OpenGL])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_OPENGL 1"
 fi
 if test "x$USE_GLES2" = "xyes"; then
   GL_APIS="gles2 $GL_APIS"
-  AC_DEFINE(HAVE_GLES2, [1] , [Use OpenGL|ES 2.0])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_GLES2 1"
 fi
 
 dnl WINDOW's
 if test "x$HAVE_WINDOW_X11" = "xyes"; then
   GL_WINDOWS="x11 $GL_WINDOWS"
-  AC_DEFINE(HAVE_WINDOW_X11, [1], [Have X11 window libraries])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_WINDOW_X11 1"
 fi
 if test "x$HAVE_WINDOW_COCOA" = "xyes"; then
   GL_WINDOWS="cocoa $GL_WINDOWS"
-  AC_DEFINE(HAVE_WINDOW_COCOA, [1], [Have Cocoa window libraries])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_WINDOW_COCOA 1"
 fi
 if test "x$HAVE_WINDOW_WIN32" = "xyes"; then
   GL_WINDOWS="win32 $GL_WINDOWS"
-  AC_DEFINE(HAVE_WINDOW_WIN32, [1], [Have Win32 window libraries])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_WINDOW_WIN32 1"
 fi
 if test "x$HAVE_WINDOW_WAYLAND" = "xyes"; then
   GL_WINDOWS="wayland $GL_WINDOWS"
-  AC_DEFINE(HAVE_WINDOW_WAYLAND, [1], [Have Wayland window libraries])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_WINDOW_WAYLAND 1"
 fi
 
 dnl PLATFORM's
 if test "x$USE_EGL" = "xyes"; then
   GL_PLATFORMS="egl $GL_PLATFORMS"
-  AC_DEFINE(HAVE_EGL, [1], [Have EGL])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_PLATFORM_EGL 1"
 fi
 if test "x$USE_GLX" = "xyes"; then
   GL_PLATFORMS="glx $GL_PLATFORMS"
-  AC_DEFINE(HAVE_GLX, [1], [Have GLX])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_PLATFORM_GLX 1"
 fi
 if test "x$USE_WGL" = "xyes"; then
   GL_PLATFORMS="wgl $GL_PLATFORMS"
-  AC_DEFINE(HAVE_WGL, [1], [Have WGL])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_PLATFORM_WGL 1"
 fi
 if test "x$USE_COCOA" = "xyes"; then
   GL_PLATFORMS="cocoa $GL_PLATFORMS"
-  AC_DEFINE(HAVE_COCOA, [1], [Have Cocoa])
+  GL_CONFIG_DEFINES="$GL_CONFIG_DEFINES
+#define GST_GL_HAVE_PLATFORM_COCOA 1"
 fi
 
 dnl Check for no platforms/window systems
@@ -587,6 +598,45 @@ AM_CONDITIONAL(USE_GLX, test "x$USE_GLX" = "xyes")
 AM_CONDITIONAL(USE_WGL, test "x$USE_WGL" = "xyes")
 AM_CONDITIONAL(USE_COCOA, test "x$USE_COCOA" = "xyes")
 
+AC_CONFIG_COMMANDS([gst-libs/gst/gl/gstglconfig.h], [
+	outfile=gstglconfig.h-tmp
+	cat > $outfile <<\_______EOF
+/* gstglconfig.h
+ *
+ * This is a generated file.  Please modify `configure.ac'
+ */
+
+#ifndef __GST_GL_CONFIG_H__
+#define __GST_GL_CONFIG_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+_______EOF
+
+	cat >>$outfile <<_______EOF
+$gl_config_defines
+_______EOF
+
+	cat >>$outfile <<_______EOF
+
+G_END_DECLS
+
+#endif  /* __GST_GL_CONFIG_H__ */
+_______EOF
+
+
+	if cmp -s $outfile gst-libs/gst/gl/gstglconfig.h; then
+          AC_MSG_NOTICE([gst-libs/gst/gl/gstglconfig.h is unchanged])
+	  rm -f $outfile
+	else
+	  mv $outfile gst-libs/gst/gl/gstglconfig.h
+	fi
+],[
+gl_config_defines='$GL_CONFIG_DEFINES'
+])
+
 dnl checks for gstreamer
 dnl uninstalled is selected preferentially -- see pkg-config(1)
 AG_GST_CHECK_GST($GST_API_VERSION, [$GST_REQ], yes)