From cc99d0adc0d40ba5879b0a1a1ec0b71df59fbe96 Mon Sep 17 00:00:00 2001 From: Nanley Chery Date: Thu, 19 Sep 2019 13:10:24 -0700 Subject: [PATCH] isl: Add isl_surf_supports_hiz_ccs_wt() Add a helper to determine if an ISL surface supports the write-through mode of HIZ_CCS. Reviewed-by: Sagar Ghuge Reviewed-by: Kenneth Graunke --- src/intel/isl/isl.c | 10 ++++++++++ src/intel/isl/isl.h | 8 ++++++++ 2 files changed, 18 insertions(+) diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index 954c7102b80..c756fb0c80f 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -2582,6 +2582,16 @@ isl_surf_get_depth_format(const struct isl_device *dev, } } +bool +isl_surf_supports_hiz_ccs_wt(const struct gen_device_info *dev, + const struct isl_surf *surf, + enum isl_aux_usage aux_usage) +{ + return aux_usage == ISL_AUX_USAGE_HIZ_CCS && + surf->samples == 1 && + surf->usage & ISL_SURF_USAGE_TEXTURE_BIT; +} + bool isl_swizzle_supports_rendering(const struct gen_device_info *devinfo, struct isl_swizzle swizzle) diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h index d50f86f6892..bcb46b12266 100644 --- a/src/intel/isl/isl.h +++ b/src/intel/isl/isl.h @@ -2162,6 +2162,14 @@ uint32_t isl_surf_get_depth_format(const struct isl_device *dev, const struct isl_surf *surf); +/** + * @brief determines if a surface supports writing through HIZ to the CCS. + */ +bool +isl_surf_supports_hiz_ccs_wt(const struct gen_device_info *dev, + const struct isl_surf *surf, + enum isl_aux_usage aux_usage); + /** * @brief performs a copy from linear to tiled surface * -- 2.30.2