* NativeStateDRM: Specify modifiers for DRM framebuffer when possible
* NativeStateDRM: Use explicit format modifiers when possible
* GLStateEGL: Advertise supported format modifiers
* glad: Add EGL_EXT_image_dma_buf_import_modifiers extension
* GLStateEGL: Prefer to use eglGetProcAddress to get EGL function addresses
* Support the provision of GL modifiers to native state
* NativeStateNull: Add null native state
* glad: Update to latest version and add EGL_MESA_platform_surfaceless
* Prefer to use sync objects to synchronize rendering in offscreen mode
* CanvasGeneric,Options: Support multiple FBOs in offscreen mode
* Prepare scenes for changing Canvas FBO
OBS-URL: https://build.opensuse.org/package/show/benchmark/glmark2?expand=0&rev=60