diff options
Diffstat (limited to 'src/intel/isl/isl_format.c')
| -rw-r--r-- | src/intel/isl/isl_format.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c index ebc8ec9e708..ed5a0636eb4 100644 --- a/src/intel/isl/isl_format.c +++ b/src/intel/isl/isl_format.c @@ -437,6 +437,28 @@ isl_format_supports_vertex_fetch(const struct gen_device_info *devinfo, return format_gen(devinfo) >= format_info[format].input_vb; } +/** + * Returns true if the given format can support single-sample fast clears. + * 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_d(const struct gen_device_info *devinfo, + enum isl_format format) +{ + /* Fast clears were first added on Ivy Bridge */ + if (devinfo->gen < 7) + return false; + + if (!isl_format_supports_rendering(devinfo, format)) + return false; + + const struct isl_format_layout *fmtl = isl_format_get_layout(format); + + return fmtl->bpb == 32 || fmtl->bpb == 64 || fmtl->bpb == 128; +} + bool isl_format_supports_ccs_e(const struct gen_device_info *devinfo, enum isl_format format) |