<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Apr 27, 2017 at 11:32 AM, Nanley Chery <<a href="mailto:nanleychery@gmail.com" target="_blank">nanleychery@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Signed-off-by: Nanley Chery <<a href="mailto:nanley.g.chery@intel.com">nanley.g.chery@intel.com</a>> --- src/intel/vulkan/anv_private.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h index dbe1e0475e..ac71537e88 100644 --- a/src/intel/vulkan/anv_private.h +++ b/src/intel/vulkan/anv_private.h @@ -1977,6 +1977,48 @@ struct anv_image { struct anv_surface aux_surface; }; +static inline bool +anv_image_has_color_aux(const struct anv_image * const image) +{ + assert(image); + + return image->aspects == VK_IMAGE_ASPECT_COLOR_BIT && + image->aux_surface.isl.size > 0; +} + +/* Returns the number of levels present in the auxiliary buffer of a color + * image. + */ +static inline uint8_t +anv_color_aux_levels(const struct anv_image * const image) +{ + assert(image); + + /* We expect the image to have a color aux buffer. */ + assert(anv_image_has_color_aux(image)); + + return image->aux_surface.isl.levels; +} + +/* Returns the number of layers present in the auxiliary buffer of a color + * image. + */ +static inline uint32_t +anv_color_aux_layers(const struct anv_image * const image, + const uint8_t miplevel) +{ + assert(image); + + /* We expect the image to have a color aux buffer. */ + assert(anv_image_has_color_aux(image)); + + /* The miplevel must exist in the main buffer. */ + assert(miplevel < image->levels); + </blockquote><div> </div><div>I think you may want </div><div>if (miplevel >= image->aux_surface.isl.levels) </div><div> return 0; </div><div>or something similar to indicate that you may not have all the layers. Not sure if that's useful though. I'll keep reading. :-) </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> + return MAX2(image->aux_surface.isl.logical_level0_px.array_len, + image->aux_surface.isl.logical_level0_px.depth >> miplevel); +} + /* Returns true if a HiZ-enabled depth buffer can be sampled from. */ static inline bool anv_can_sample_with_hiz(const struct gen_device_info * const devinfo, -- 2.12.2 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> </div></div>