anv: Add anv_subpass::has_resolve

Indicates that the subpass has at least one resolve attachment.

2 files changed, 7 insertions, 2 deletions

diff --git a/src/vulkan/anv_pass.c b/src/vulkan/anv_pass.c
index ccd8cedf561..a8e85664d48 100644
--- a/src/vulkan/anv_pass.c
+++ b/src/vulkan/anv_pass.c
@@ -118,8 +118,10 @@ VkResult anv_CreateRenderPass(
          p += desc->colorAttachmentCount;
 
          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
-            subpass->resolve_attachments[j]
-               = desc->pResolveAttachments[j].attachment;
+            uint32_t a = desc->pResolveAttachments[j].attachment;
+            subpass->resolve_attachments[j] = a;
+            if (a != VK_ATTACHMENT_UNUSED)
+               subpass->has_resolve = true;
          }
       }
 
diff --git a/src/vulkan/anv_private.h b/src/vulkan/anv_private.h
index 6e44e88e10c..cad1e1fd5ff 100644
--- a/src/vulkan/anv_private.h
+++ b/src/vulkan/anv_private.h
@@ -1712,6 +1712,9 @@ struct anv_subpass {
    uint32_t *                                   color_attachments;
    uint32_t *                                   resolve_attachments;
    uint32_t                                     depth_stencil_attachment;
+
+   /** Subpass has at least one resolve attachment */
+   bool                                         has_resolve;
 };
 
 struct anv_render_pass_attachment {