diff options
Diffstat (limited to 'src/intel/isl/isl.c')
| -rw-r--r-- | src/intel/isl/isl.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index 5465496b8f2..fba40caff41 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -268,6 +268,33 @@ isl_tiling_get_info(enum isl_tiling tiling, }; } +bool +isl_color_value_is_zero_one(union isl_color_value value, + enum isl_format format) +{ + const struct isl_format_layout *fmtl = isl_format_get_layout(format); + +#define RETURN_FALSE_IF_NOT_0_1(c, i, field) \ + if (fmtl->channels.c.bits && value.field[i] != 0 && value.field[i] != 1) \ + return false + + if (isl_format_has_int_channel(format)) { + RETURN_FALSE_IF_NOT_0_1(r, 0, u32); + RETURN_FALSE_IF_NOT_0_1(g, 1, u32); + RETURN_FALSE_IF_NOT_0_1(b, 2, u32); + RETURN_FALSE_IF_NOT_0_1(a, 3, u32); + } else { + RETURN_FALSE_IF_NOT_0_1(r, 0, f32); + RETURN_FALSE_IF_NOT_0_1(g, 1, f32); + RETURN_FALSE_IF_NOT_0_1(b, 2, f32); + RETURN_FALSE_IF_NOT_0_1(a, 3, f32); + } + +#undef RETURN_FALSE_IF_NOT_0_1 + + return true; +} + /** * @param[out] tiling is set only on success */ |