Partial support for Mesa GL ES v1 and v2

v1 does not work and v2 does not compile but nevermind...

configure.ac

@@ -3247,8 +3247,11 @@ AC_SUBST([GL_CFLAGS])
 AC_SUBST([GL_LIBS])
 
 dnl
-dnl  EGL
+dnl  OpenGL
 dnl
+PKG_ENABLE_MODULES_VLC([GL], [], [gl], [OpenGL support], [auto])
+PKG_ENABLE_MODULES_VLC([GLES1], [], [glesv1_cm], [OpenGL ES v1 support], [auto])
+PKG_ENABLE_MODULES_VLC([GLES2], [], [glesv2], [OpenGL ES v2 support], [auto])
 PKG_ENABLE_MODULES_VLC([EGL], [], [egl], [EGL support], [auto])
 
 dnl

modules/video_output/Modules.am

@@ -15,16 +15,33 @@ SOURCES_yuv = yuv.c
 SOURCES_vout_macosx = macosx.m opengl.h opengl.c
 SOURCES_vout_ios = ios.m opengl.h opengl.c
 
+
 ### OpenGL ###
 # TODO: merge all three source files (?)
-libopengl_plugin_la_SOURCES = \
-	opengl.c opengl.h \
-	gl.c
-libopengl_plugin_la_CFLAGS = $(AM_CFLAGS) $(GL_CFLAGS)
-libopengl_plugin_la_LIBADD = $(AM_LIBADD) $(GL_LIBS)
-libopengl_plugin_la_DEPENDENCIES =
-EXTRA_LTLIBRARIES += libopengl_plugin.la
-libvlc_LTLIBRARIES += $(LTLIBopengl)
+libgles2_plugin_la_SOURCES = opengl.c opengl.h gl.c
+libgles2_plugin_la_CFLAGS = $(AM_CFLAGS) $(GLES2_CFLAGS) -DUSE_OPENGL_ES=2
+libgles2_plugin_la_LIBADD = $(AM_LIBADD) $(GLES2_LIBS)
+libgles2_plugin_la_DEPENDENCIES =
+
+libgles1_plugin_la_SOURCES = opengl.c opengl.h gl.c
+libgles1_plugin_la_CFLAGS = $(AM_CFLAGS) $(GLES1_CFLAGS) -DUSE_OPENGL_ES=1
+libgles1_plugin_la_LIBADD = $(AM_LIBADD) $(GLES1_LIBS)
+libgles1_plugin_la_DEPENDENCIES =
+
+libgl_plugin_la_SOURCES = opengl.c opengl.h gl.c
+libgl_plugin_la_CFLAGS = $(AM_CFLAGS) $(GL_CFLAGS)
+libgl_plugin_la_LIBADD = $(AM_LIBADD) $(GL_LIBS)
+libgl_plugin_la_DEPENDENCIES =
+
+EXTRA_LTLIBRARIES += \
+	libgles2_plugin.la \
+	libgles1_plugin.la \
+	libgl_plugin.la
+libvlc_LTLIBRARIES += \
+	$(LTLIBgles2) \
+	$(LTLIBgles1) \
+	$(LTLIBgl)
+
 
 ### XCB ###
 libxcb_x11_plugin_la_SOURCES = \

modules/video_output/opengl.c

@@ -32,13 +32,23 @@
 #include "opengl.h"
 // Define USE_OPENGL_ES to the GL ES Version you want to select
 
-#if USE_OPENGL_ES == 1
-# include <OpenGLES/ES1/glext.h>
-#elif USE_OPENGL_ES == 2
-# include <OpenGLES/ES2/glext.h>
-#elif defined(__APPLE__)
+#if !defined (__APPLE__)
+# if USE_OPENGL_ES == 2
+#  include <GLES2/gl2ext.h>
+# elif USE_OPENGL_ES == 1
+#  include <GLES/glext.h>
+//# else
+//# include <GL/glext.h>
+# endif
+#else
+# if USE_OPENGL_ES == 2
+#  include <OpenGLES/ES2/gl.h>
+# elif USE_OPENGL_ES == 1
+#  include <OpenGLES/ES1/gl.h>
+# else
 #  define MACOS_OPENGL
 #  include <OpenGL/glext.h>
+# endif
 #endif
 
 #ifndef YCBCR_MESA

modules/video_output/opengl.h

@@ -36,17 +36,25 @@
 
 #define VLCGL_TEXTURE_COUNT 1
 
-#if USE_OPENGL_ES == 1
-# include <OpenGLES/ES1/gl.h>
-#elif USE_OPENGL_ES == 2
+#if !defined (__APPLE__)
+# if USE_OPENGL_ES == 2
+#  include <GLES2/gl2.h>
+# elif USE_OPENGL_ES == 1
+#  include <GLES/gl.h>
+# else
+#  include <GL/gl.h>
+# endif
+#else
+# if USE_OPENGL_ES == 2
 #  include <OpenGLES/ES2/gl.h>
-#elif defined(__APPLE__)
+# elif USE_OPENGL_ES == 1
+#  include <OpenGLES/ES1/gl.h>
+# else
 #  define MACOS_OPENGL
 #  include <OpenGL/gl.h>
 #  undef VLCGL_TEXTURE_COUNT
 #  define VLCGL_TEXTURE_COUNT 2
-#else
-# include <GL/gl.h>
+# endif
 #endif
 
 typedef struct {