156    case GL_ALPHA:  in get_map_idx()
381    case GL_ALPHA:  in _mesa_components_in_format()
589    case GL_ALPHA:  in _mesa_is_enum_format_unsized()
639       case GL_ALPHA:  in _mesa_is_enum_format_unorm()
990       case GL_ALPHA:  in _mesa_is_color_format()
1478       return GL_ALPHA;  in _mesa_unpack_format_to_base_format()
1501    case GL_ALPHA:  in _mesa_unpack_format_to_base_format()
1532    case GL_ALPHA:  in _mesa_base_format_to_integer_format()
1595 	  base_format == GL_ALPHA ||  in _mesa_base_format_has_channel()
1660       return GL_ALPHA;  in _mesa_generic_compressed_format_to_uncompressed_format()
1703    case GL_ALPHA:  in _mesa_get_nongeneric_internalformat()
1896       case GL_ALPHA:  in _mesa_error_check_format_and_type()
1933       case GL_ALPHA:  in _mesa_error_check_format_and_type()
2198    case GL_ALPHA:  in _mesa_es_error_check_format_and_type()
2272    case GL_ALPHA:  in _mesa_base_tex_format()
2277       return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2379       return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2415          return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2432          return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2467          return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2560          return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;  in _mesa_base_tex_format()
2711       case GL_ALPHA:  in gles_effective_internal_format_for_format_and_type()
2766       case GL_ALPHA:  in gles_effective_internal_format_for_format_and_type()
2810    case GL_ALPHA:  in _mesa_gles_check_internalformat()
3605    case GL_ALPHA:  in _mesa_gles_error_check_format_and_type()
3619                (format == GL_ALPHA && internalFormat == GL_ALPHA8) ||  in _mesa_gles_error_check_format_and_type()
3688    case GL_ALPHA:  in get_swizzle_from_gl_format()