From 37a6f48ceb952193e4654e88f97ea7ff2bbd8882 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Thu, 2 Feb 2017 09:51:55 -0800 Subject: intel/isl: Add a better comment for format_supports_ccs_e Reviewed-by: Chad Versace Reviewed-by: Anuj Phogat --- src/intel/isl/isl_format.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src') diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c index ef6c98d50b3..817b5e341dc 100644 --- a/src/intel/isl/isl_format.c +++ b/src/intel/isl/isl_format.c @@ -459,6 +459,12 @@ isl_format_supports_ccs_d(const struct gen_device_info *devinfo, return fmtl->bpb == 32 || fmtl->bpb == 64 || fmtl->bpb == 128; } +/** + * Returns true if the given format can support single-sample color + * compression. This function only checks the format. In order to determine + * if a surface supports CCS_E, several other factors need to be considered + * such as tiling and sample count. See isl_surf_get_ccs_surf for details. + */ bool isl_format_supports_ccs_e(const struct gen_device_info *devinfo, enum isl_format format) -- cgit v1.2.3