From 7cd9cc9dd6ed0d4217992aa6ba08078ba17e2750 Mon Sep 17 00:00:00 2001
From: Laura Ekstrand <laura@jlekstrand.net>
Date: Wed, 1 Nov 2017 16:52:25 -0700
Subject: intel/vulkan: Added anv_mcs_partial_resolve.

---
 src/intel/vulkan/anv_blorp.c   | 40 ++++++++++++++++++++++++++++++++++++++++
 src/intel/vulkan/anv_private.h |  8 ++++++++
 2 files changed, 48 insertions(+)

diff --git a/src/intel/vulkan/anv_blorp.c b/src/intel/vulkan/anv_blorp.c
index 70e1b2b022..d076e73876 100644
--- a/src/intel/vulkan/anv_blorp.c
+++ b/src/intel/vulkan/anv_blorp.c
@@ -1694,3 +1694,43 @@ anv_ccs_resolve(struct anv_cmd_buffer * const cmd_buffer,
 
    blorp_batch_finish(&batch);
 }
+
+void
+anv_mcs_partial_resolve(struct anv_cmd_buffer * const cmd_buffer,
+                        const struct anv_state surface_state,
+                        const struct anv_image * const image,
+                        VkImageAspectFlagBits aspect,
+                        const uint32_t start_layer,
+                        const uint32_t layer_count)
+{
+   assert(cmd_buffer && image);
+
+   uint32_t plane = anv_image_aspect_to_plane(image->aspects, aspect);
+
+   /* The resolved subresource range must have a MCS buffer. */
+   assert(layer_count <= anv_image_aux_layers(image, aspect, 0));
+   assert(image->aspects & VK_IMAGE_ASPECT_ANY_COLOR_BIT && image->samples > 1);
+
+   /* Create a binding table for this surface state. */
+   uint32_t binding_table;
+   VkResult result =
+      binding_table_for_surface_state(cmd_buffer, surface_state,
+                                      &binding_table);
+   if (result != VK_SUCCESS)
+      return;
+
+   struct blorp_batch batch;
+   blorp_batch_init(&cmd_buffer->device->blorp, &batch, cmd_buffer,
+                    BLORP_BATCH_PREDICATE_ENABLE);
+
+   struct blorp_surf surf;
+   get_blorp_surf_for_anv_image(image, aspect,
+                                fast_clear_aux_usage(image, aspect),
+                                &surf);
+
+   blorp_mcs_partial_resolve_attachment(&batch, binding_table, &surf,
+                                image->planes[plane].surface.isl.format,
+                                start_layer, layer_count);
+
+   blorp_batch_finish(&batch);
+}
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h
index 8de5103453..dff023d0f0 100644
--- a/src/intel/vulkan/anv_private.h
+++ b/src/intel/vulkan/anv_private.h
@@ -2506,6 +2506,14 @@ anv_ccs_resolve(struct anv_cmd_buffer * const cmd_buffer,
                 const uint8_t level, const uint32_t layer_count,
                 const enum blorp_fast_clear_op op);
 
+void
+anv_mcs_partial_resolve(struct anv_cmd_buffer * const cmd_buffer,
+                        const struct anv_state surface_state,
+                        const struct anv_image * const image,
+                        VkImageAspectFlagBits aspect,
+                        const uint32_t start_layer,
+                        const uint32_t layer_count);
+
 void
 anv_image_fast_clear(struct anv_cmd_buffer *cmd_buffer,
                      const struct anv_image *image,
-- 
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