[Mesa-dev] [PATCH 08/19] radv: determine the last subpass id for every attachments

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/radv_pass.c    | 12 ++++++++++++
 src/amd/vulkan/radv_private.h |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/src/amd/vulkan/radv_pass.c b/src/amd/vulkan/radv_pass.c
index 1102ef689b2..ac9f9381216 100644
--- a/src/amd/vulkan/radv_pass.c
+++ b/src/amd/vulkan/radv_pass.c
@@ -42,6 +42,18 @@ radv_render_pass_compile(struct radv_render_pass *pass)
 		if (subpass->depth_stencil_attachment &&
 		    subpass->depth_stencil_attachment->attachment == VK_ATTACHMENT_UNUSED)
 			subpass->depth_stencil_attachment = NULL;
+
+		for (uint32_t j = 0; j < subpass->attachment_count; j++) {
+			struct radv_subpass_attachment *subpass_att =
+				&subpass->attachments[j];
+			if (subpass_att->attachment == VK_ATTACHMENT_UNUSED)
+				continue;
+
+			struct radv_render_pass_attachment *pass_att =
+				&pass->attachments[subpass_att->attachment];
+
+			pass_att->last_subpass_idx = i;
+		}
 	}
 }
 
diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index a4b611f18d3..336997e2d34 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -1841,6 +1841,9 @@ struct radv_render_pass_attachment {
 	VkAttachmentLoadOp                           stencil_load_op;
 	VkImageLayout                                initial_layout;
 	VkImageLayout                                final_layout;
+
+	/* The subpass id in which the attachment will be used last. */
+	uint32_t                                     last_subpass_idx;
 };
 
 struct radv_render_pass {
-- 
2.20.1