Module: Mesa Branch: master Commit: 4796025ba518baa0e8893337591a3f452a375d94 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4796025ba518baa0e8893337591a3f452a375d94
Author: Jason Ekstrand <jason.ekstr...@intel.com> Date: Mon Feb 12 15:50:12 2018 -0800 intel/isl: Add an isl_color_value_is_zero helper Cc: mesa-sta...@lists.freedesktop.org Reviewed-by: Nanley Chery <nanley.g.ch...@intel.com> --- src/intel/isl/isl.c | 20 ++++++++++++++++++++ src/intel/isl/isl.h | 3 +++ 2 files changed, 23 insertions(+) diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index 4dce0596d2..1a32c02818 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -269,6 +269,26 @@ isl_tiling_get_info(enum isl_tiling tiling, } bool +isl_color_value_is_zero(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(c, i) \ + if (fmtl->channels.c.bits && value.u32[i] != 0) \ + return false + + RETURN_FALSE_IF_NOT_0(r, 0); + RETURN_FALSE_IF_NOT_0(g, 1); + RETURN_FALSE_IF_NOT_0(b, 2); + RETURN_FALSE_IF_NOT_0(a, 3); + +#undef RETURN_FALSE_IF_NOT_0 + + return true; +} + +bool isl_color_value_is_zero_one(union isl_color_value value, enum isl_format format) { diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h index fda2411510..209769a9a9 100644 --- a/src/intel/isl/isl.h +++ b/src/intel/isl/isl.h @@ -1692,6 +1692,9 @@ isl_extent4d(uint32_t width, uint32_t height, uint32_t depth, return e; } +bool isl_color_value_is_zero(union isl_color_value value, + enum isl_format format); + bool isl_color_value_is_zero_one(union isl_color_value value, enum isl_format format); _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit