diff options
| -rw-r--r-- | src/intel/vulkan/genX_cmd_buffer.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c index 74369f6ba1b..fff9bd37c0d 100644 --- a/src/intel/vulkan/genX_cmd_buffer.c +++ b/src/intel/vulkan/genX_cmd_buffer.c @@ -310,6 +310,56 @@ need_input_attachment_state(const struct anv_render_pass_attachment *att) return vk_format_is_color(att->format) || vk_format_has_depth(att->format); } +static enum isl_aux_usage +layout_to_hiz_usage(VkImageLayout layout) +{ + switch (layout) { + case VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL: + return ISL_AUX_USAGE_HIZ; + default: + return ISL_AUX_USAGE_NONE; + } +} + +/* Transitions a HiZ-enabled depth buffer from one layout to another. Unless + * the initial layout is undefined, the HiZ buffer and depth buffer will + * represent the same data at the end of this operation. + */ +static void +transition_depth_buffer(struct anv_cmd_buffer *cmd_buffer, + const struct anv_image *image, + VkImageLayout initial_layout, + VkImageLayout final_layout) +{ + assert(image); + + if (image->aux_usage != ISL_AUX_USAGE_HIZ) + return; + + const bool hiz_enabled = layout_to_hiz_usage(initial_layout) == + ISL_AUX_USAGE_HIZ; + const bool enable_hiz = layout_to_hiz_usage(final_layout) == + ISL_AUX_USAGE_HIZ; + + /* We've already initialized the aux HiZ buffer at BindImageMemory time, + * so there's no need to perform a HIZ resolve or clear to avoid GPU hangs. + * This initial layout indicates that the user doesn't care about the data + * that's currently in the buffer, so no resolves are necessary. + */ + if (initial_layout == VK_IMAGE_LAYOUT_UNDEFINED) + return; + + if (hiz_enabled == enable_hiz) { + /* The same buffer will be used, no resolves are necessary */ + } else if (hiz_enabled && !enable_hiz) { + anv_gen8_hiz_op_resolve(cmd_buffer, image, BLORP_HIZ_OP_DEPTH_RESOLVE); + } else { + assert(!hiz_enabled && enable_hiz); + anv_gen8_hiz_op_resolve(cmd_buffer, image, BLORP_HIZ_OP_HIZ_RESOLVE); + } +} + + /** * Setup anv_cmd_state::attachments for vkCmdBeginRenderPass. */ |