Date: Wed, 4 Mar 2009 15:38:22 +0200

From: "Mike Gorchak"
Subject: Re: About QNX support in SDL 1.3

Here is another batch of patches.

1) Makefile.in - added SDL_opengles.h header as header to install.
2) configure.in - Added special define to detect Common Lite OpenGL ES
library in case if Common library is not installed. Added check for
clock_gettime in libc (in QNX it is in libc).
3) SDL_config.h.in - Added SDL_VIDEO_RENDER_OPENGL_ES and
SDL_VIDEO_OPENGL_ES declarations for configure script autodetection.
4) SDL_opengles.h - Added GL_API definition if it is not defined. Added
extension GL_OES_draw_texture because OpenGL ES Renderer uses it without
declaration. Added GL_OES_vertex_buffer_object extension, which is supported
under QNX OpenGL ES. Added GL_OES_single_precision extension.
5) To the test directory I've added building OpenGL ES test applications
through the autotools suite. Was support for iPhone IDE building only.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403553

test/configure.in

@@ -49,7 +49,12 @@ case "$host" in
         else
             SYS_GL_LIBS="-lOSMesa"
         fi
-		;;
+        ;;
+    *-*-qnx*)
+        EXE=""
+        MATHLIB=""
+        SYS_GL_LIBS="-lGLES_CM"
+        ;;
     *)
         EXE=""
         MATHLIB="-lm"
@@ -99,6 +104,30 @@ if test x$have_opengl = xyes; then
 else
     GLLIB=""
 fi
+
+dnl Check for OpenGL ES
+AC_MSG_CHECKING(for OpenGL ES support)
+have_opengles=no
+AC_TRY_COMPILE([
+ #if defined (__QNXNTO__)
+    #include <GLES/gl.h>
+ #elif defined (__IPHONEOS__)
+    #include <OpenGLES/ES1/gl.h>
+ #else
+    #error "No OpenGL ES support"
+ #endif /* __QNXNTO__ */
+],[
+],[
+have_opengles=yes
+])
+AC_MSG_RESULT($have_opengles)
+if test x$have_opengles = xyes; then
+    CFLAGS="$CFLAGS -DHAVE_OPENGLES"
+    GLLIB="$XPATH $SYS_GL_LIBS"
+else
+    GLLIB=""
+fi
+
 AC_SUBST(GLLIB)
 
 dnl Finally create all the generated files