VulkanHub
Enum

VkSubpassMergeStatusEXT

Specify a subpass merging status

Possible values of VkRenderPassSubpassFeedbackInfoEXT:subpassMergeStatus are:

typedef enum VkSubpassMergeStatusEXT {
    VK_SUBPASS_MERGE_STATUS_MERGED_EXT = 0,
    VK_SUBPASS_MERGE_STATUS_DISALLOWED_EXT = 1,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SIDE_EFFECTS_EXT = 2,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SAMPLES_MISMATCH_EXT = 3,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_VIEWS_MISMATCH_EXT = 4,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_ALIASING_EXT = 5,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_DEPENDENCIES_EXT = 6,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_INCOMPATIBLE_INPUT_ATTACHMENT_EXT = 7,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_TOO_MANY_ATTACHMENTS_EXT = 8,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_INSUFFICIENT_STORAGE_EXT = 9,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_DEPTH_STENCIL_COUNT_EXT = 10,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_RESOLVE_ATTACHMENT_REUSE_EXT = 11,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SINGLE_SUBPASS_EXT = 12,
    VK_SUBPASS_MERGE_STATUS_NOT_MERGED_UNSPECIFIED_EXT = 13,
} VkSubpassMergeStatusEXT;
  • VK_SUBPASS_MERGE_STATUS_MERGED_EXT specifies the subpass is merged with a previous subpass.
  • VK_SUBPASS_MERGE_STATUS_DISALLOWED_EXT specifies the subpass is disallowed to merge with previous subpass. If the render pass does not allow subpass merging, then all subpass statuses are set to this value. If a subpass description does not allow subpass merging, then only that subpass’s status is set to this value.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SIDE_EFFECTS_EXT specifies the subpass is not merged because it contains side effects.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SAMPLES_MISMATCH_EXT specifies the subpass is not merged because sample count is not compatible with previous subpass.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_VIEWS_MISMATCH_EXT specifies the subpass is not merged because view masks do not match with previous subpass.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_ALIASING_EXT specifies the subpass is not merged because of attachments aliasing between them.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_DEPENDENCIES_EXT specifies the subpass is not merged because subpass dependencies do not allow merging.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_INCOMPATIBLE_INPUT_ATTACHMENT_EXT specifies the subpass is not merged because input attachment is not a color attachment from previous subpass or the formats are incompatible.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_TOO_MANY_ATTACHMENTS_EXT specifies the subpass is not merged because of too many attachments.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_INSUFFICIENT_STORAGE_EXT specifies the subpass is not merged because of insufficient memory.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_DEPTH_STENCIL_COUNT_EXT specifies the subpass is not merged because of too many depth/stencil attachments.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_RESOLVE_ATTACHMENT_REUSE_EXT specifies the subpass is not merged because a resolve attachment is reused as an input attachment in a subsequent subpass.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_SINGLE_SUBPASS_EXT specifies the subpass is not merged because the render pass has only one subpass.
  • VK_SUBPASS_MERGE_STATUS_NOT_MERGED_UNSPECIFIED_EXT specifies other reasons why subpass is not merged. It is also the recommended default value that should be reported when a subpass is not merged and when no other value is appropriate.