Mesa (staging/21.0): radv: fix separate depth/stencil layout in render pass

GitLab Mirror gitlab-mirror at kemper.freedesktop.org
Fri Jan 22 17:04:58 UTC 2021


Module: Mesa
Branch: staging/21.0
Commit: c849e15c44d1d3f5b327060b5c9f4c055998db84
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c849e15c44d1d3f5b327060b5c9f4c055998db84

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Mon Jan 18 08:59:29 2021 +0100

radv: fix separate depth/stencil layout in render pass

We used to select the stencil layout even if we should have selected
the depth/stencil one.

Fixes: e4c8491bdf8 ("radv: implement VK_KHR_separate_depth_stencil_layouts")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8552>
(cherry picked from commit 3ef89b245e3e1ac4e67fea9c1b13ebeda75769d0)

---

 .pick_status.json          |  2 +-
 src/amd/vulkan/radv_pass.c | 98 ++++++++++++++++++++++++++++++++--------------
 2 files changed, 69 insertions(+), 31 deletions(-)

diff --git a/.pick_status.json b/.pick_status.json
index 9b36471a51d..a0f78840681 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -4,7 +4,7 @@
         "description": "radv: fix separate depth/stencil layout in render pass",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "master_sha": null,
         "because_sha": "e4c8491bdf8a1238d475491533d937568019e633"
     },
diff --git a/src/amd/vulkan/radv_pass.c b/src/amd/vulkan/radv_pass.c
index e3606adbcd5..63cfaa0259d 100644
--- a/src/amd/vulkan/radv_pass.c
+++ b/src/amd/vulkan/radv_pass.c
@@ -497,6 +497,69 @@ radv_num_subpass_attachments2(const VkSubpassDescription2 *desc)
 	       (ds_resolve && ds_resolve->pDepthStencilResolveAttachment);
 }
 
+static bool
+vk_image_layout_depth_only(VkImageLayout layout)
+{
+	switch (layout) {
+	case VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_OPTIMAL:
+	case VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL:
+		return true;
+	default:
+		return false;
+	}
+}
+
+/* From the Vulkan Specification 1.2.166 - VkAttachmentReference2:
+ *
+ * "If layout only specifies the layout of the depth aspect of the attachment,
+ *  the layout of the stencil aspect is specified by the stencilLayout member
+ *  of a VkAttachmentReferenceStencilLayout structure included in the pNext
+ *  chain. Otherwise, layout describes the layout for all relevant image
+ *  aspects."
+ */
+static VkImageLayout
+stencil_ref_layout(const VkAttachmentReference2 *att_ref)
+{
+	if (!vk_image_layout_depth_only(att_ref->layout))
+		return att_ref->layout;
+
+	const VkAttachmentReferenceStencilLayoutKHR *stencil_ref =
+		vk_find_struct_const(att_ref->pNext,
+				     ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
+	if (!stencil_ref)
+		return VK_IMAGE_LAYOUT_UNDEFINED;
+
+	return stencil_ref->stencilLayout;
+}
+
+/* From the Vulkan Specification 1.2.166 - VkAttachmentDescription2:
+ *
+ * "If format is a depth/stencil format, and initialLayout only specifies the
+ *  initial layout of the depth aspect of the attachment, the initial layout of
+ *  the stencil aspect is specified by the stencilInitialLayout member of a
+ *  VkAttachmentDescriptionStencilLayout structure included in the pNext chain.
+ *  Otherwise, initialLayout describes the initial layout for all relevant
+ *  image aspects."
+ */
+static VkImageLayout
+stencil_desc_layout(const VkAttachmentDescription2KHR *att_desc, bool final)
+{
+	const struct vk_format_description *desc = vk_format_description(att_desc->format);
+	if (!vk_format_has_stencil(desc))
+		return VK_IMAGE_LAYOUT_UNDEFINED;
+
+	const VkImageLayout main_layout =
+		final ? att_desc->finalLayout : att_desc->initialLayout;
+	if (!vk_image_layout_depth_only(main_layout))
+		return main_layout;
+
+	const VkAttachmentDescriptionStencilLayoutKHR *stencil_desc =
+		vk_find_struct_const(att_desc->pNext,
+				     ATTACHMENT_DESCRIPTION_STENCIL_LAYOUT_KHR);
+	assert(stencil_desc);
+	return final ? stencil_desc->stencilFinalLayout : stencil_desc->stencilInitialLayout;
+}
+
 VkResult radv_CreateRenderPass2(
     VkDevice                                    _device,
     const VkRenderPassCreateInfo2*              pCreateInfo,
@@ -531,9 +594,6 @@ VkResult radv_CreateRenderPass2(
 
 	for (uint32_t i = 0; i < pCreateInfo->attachmentCount; i++) {
 		struct radv_render_pass_attachment *att = &pass->attachments[i];
-		const VkAttachmentDescriptionStencilLayoutKHR *stencil_layout =
-			vk_find_struct_const(pCreateInfo->pAttachments[i].pNext,
-					     ATTACHMENT_DESCRIPTION_STENCIL_LAYOUT_KHR);
 
 		att->format = pCreateInfo->pAttachments[i].format;
 		att->samples = pCreateInfo->pAttachments[i].samples;
@@ -541,12 +601,8 @@ VkResult radv_CreateRenderPass2(
 		att->stencil_load_op = pCreateInfo->pAttachments[i].stencilLoadOp;
 		att->initial_layout =  pCreateInfo->pAttachments[i].initialLayout;
 		att->final_layout =  pCreateInfo->pAttachments[i].finalLayout;
-		att->stencil_initial_layout = (stencil_layout ?
-					       stencil_layout->stencilInitialLayout :
-					       pCreateInfo->pAttachments[i].initialLayout);
-		att->stencil_final_layout = (stencil_layout ?
-					     stencil_layout->stencilFinalLayout :
-					     pCreateInfo->pAttachments[i].finalLayout);
+		att->stencil_initial_layout = stencil_desc_layout(&pCreateInfo->pAttachments[i], false);
+	        att->stencil_final_layout = stencil_desc_layout(&pCreateInfo->pAttachments[i], true);
 		// att->store_op = pCreateInfo->pAttachments[i].storeOp;
 		// att->stencil_store_op = pCreateInfo->pAttachments[i].stencilStoreOp;
 	}
@@ -585,16 +641,10 @@ VkResult radv_CreateRenderPass2(
 			p += desc->inputAttachmentCount;
 
 			for (uint32_t j = 0; j < desc->inputAttachmentCount; j++) {
-				const VkAttachmentReferenceStencilLayoutKHR *stencil_attachment =
-			            vk_find_struct_const(desc->pInputAttachments[j].pNext,
-							 ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
-
 				subpass->input_attachments[j] = (struct radv_subpass_attachment) {
 					.attachment = desc->pInputAttachments[j].attachment,
 					.layout = desc->pInputAttachments[j].layout,
-					.stencil_layout = (stencil_attachment ?
-							   stencil_attachment->stencilLayout :
-							   desc->pInputAttachments[j].layout),
+					.stencil_layout = stencil_ref_layout(&desc->pInputAttachments[j]),
 				};
 			}
 		}
@@ -626,16 +676,10 @@ VkResult radv_CreateRenderPass2(
 		if (desc->pDepthStencilAttachment) {
 			subpass->depth_stencil_attachment = p++;
 
-			const VkAttachmentReferenceStencilLayoutKHR *stencil_attachment =
-		            vk_find_struct_const(desc->pDepthStencilAttachment->pNext,
-						 ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
-
 			*subpass->depth_stencil_attachment = (struct radv_subpass_attachment) {
 				.attachment = desc->pDepthStencilAttachment->attachment,
 				.layout = desc->pDepthStencilAttachment->layout,
-				.stencil_layout = (stencil_attachment ?
-						   stencil_attachment->stencilLayout :
-						   desc->pDepthStencilAttachment->layout),
+				.stencil_layout = stencil_ref_layout(desc->pDepthStencilAttachment),
 			};
 		}
 
@@ -646,16 +690,10 @@ VkResult radv_CreateRenderPass2(
 		if (ds_resolve && ds_resolve->pDepthStencilResolveAttachment) {
 			subpass->ds_resolve_attachment = p++;
 
-			const VkAttachmentReferenceStencilLayoutKHR *stencil_resolve_attachment =
-		            vk_find_struct_const(ds_resolve->pDepthStencilResolveAttachment->pNext,
-						 ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
-
 			*subpass->ds_resolve_attachment = (struct radv_subpass_attachment) {
 				.attachment =  ds_resolve->pDepthStencilResolveAttachment->attachment,
 				.layout =      ds_resolve->pDepthStencilResolveAttachment->layout,
-				.stencil_layout = (stencil_resolve_attachment ?
-						   stencil_resolve_attachment->stencilLayout :
-						   ds_resolve->pDepthStencilResolveAttachment->layout),
+				.stencil_layout = stencil_ref_layout(ds_resolve->pDepthStencilResolveAttachment),
 			};
 
 			subpass->depth_resolve_mode = ds_resolve->depthResolveMode;



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