weston-egl-ext.h: add GL_EXT_unpack_subimage definitions
... and use it in gl-renderer.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
diff --git a/libweston/weston-egl-ext.h b/libweston/weston-egl-ext.h
index 6bb401d..6b34c22 100644
--- a/libweston/weston-egl-ext.h
+++ b/libweston/weston-egl-ext.h
@@ -90,6 +90,13 @@
#define EGL_WAYLAND_Y_INVERTED_WL 0x31DB /* eglQueryWaylandBufferWL attribute */
#endif
+#ifndef GL_EXT_unpack_subimage
+#define GL_EXT_unpack_subimage 1
+#define GL_UNPACK_ROW_LENGTH_EXT 0x0CF2
+#define GL_UNPACK_SKIP_ROWS_EXT 0x0CF3
+#define GL_UNPACK_SKIP_PIXELS_EXT 0x0CF4
+#endif /* GL_EXT_unpack_subimage */
+
/* Mesas gl2ext.h and probably Khronos upstream defined
* GL_EXT_unpack_subimage with non _EXT suffixed GL_UNPACK_* tokens.
* In case we're using that mess, manually define the _EXT versions