Module functions

Functions

• gl_check_extension
  name
• gl_element_propagate_display_context
• gl_handle_context_query
  element
• gl_handle_set_context
  Helper function for implementing GstElementClass.set_context() in OpenGL capable elements.
• gl_swizzle_invert
  Given swizzle, produce inversion such that:
• gl_video_format_swizzle
  Calculates the swizzle indices for video_format and gl_format in order to access a texture such that accessing a texel from a texture through the swizzle index produces values in the order (R, G, B, A) or (Y, U, V, A).
• glsl_string_get_version_profile
  Note: this function first searches the first 1 kilobytes for a version preprocessor directive and then executes GLSLVersion::profile_from_string().