v2 (Jason Ekstrand):
- Check for aux levels in layer helper
Signed-off-by: Nanley Chery <nanley.g.ch...@intel.com>
---
src/intel/vulkan/anv_private.h | 49 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index 9b0dd678fd..9bbb8f7221 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -2047,6 +2047,55 @@ 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);
+
+ if (miplevel >= anv_color_aux_levels(image)) {
+ /* There are no layers with auxiliary data because the miplevel has no
+ * auxiliary data.
+ */
+ return 0;
+ } else {
+ 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
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