From cd7ab6ba4e5112c93fe24c02f4cf93e60627c616 Mon Sep 17 00:00:00 2001
From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Mon, 18 May 2015 09:42:09 -0700
Subject: [PATCH] vk/meta: Add an initial implementation of vkCmdCopyBuffer

Compile-tested only
---
 src/vulkan/meta.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 84 insertions(+), 1 deletion(-)

diff --git a/src/vulkan/meta.c b/src/vulkan/meta.c
index d94b679041b..fe79fbe5807 100644
--- a/src/vulkan/meta.c
+++ b/src/vulkan/meta.c
@@ -635,7 +635,90 @@ void anv_CmdCopyBuffer(
     uint32_t                                    regionCount,
     const VkBufferCopy*                         pRegions)
 {
-   stub();
+   struct anv_cmd_buffer *cmd_buffer = (struct anv_cmd_buffer *)cmdBuffer;
+   VkDevice vk_device = (VkDevice) cmd_buffer->device;
+   struct anv_buffer *src_buffer = (struct anv_buffer *)srcBuffer;
+   struct anv_buffer *dest_buffer = (struct anv_buffer *)destBuffer;
+   struct anv_saved_state saved_state;
+
+   meta_prepare_blit(cmd_buffer, &saved_state);
+
+   for (unsigned r = 0; r < regionCount; r++) {
+      VkImageCreateInfo image_info = {
+         .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
+         .imageType = VK_IMAGE_TYPE_2D,
+         .format = VK_FORMAT_R8_UNORM,
+         .extent = {
+            .width = pRegions[r].copySize,
+            .height = 1,
+            .depth = 1,
+         },
+         .mipLevels = 1,
+         .arraySize = 1,
+         .samples = 1,
+         .tiling = VK_IMAGE_TILING_LINEAR,
+         .usage = VK_IMAGE_USAGE_SAMPLED_BIT,
+         .flags = 0,
+      };
+
+      struct anv_image *src_image, *dest_image;
+      vkCreateImage(vk_device, &image_info, (VkImage *)&src_image);
+      vkCreateImage(vk_device, &image_info, (VkImage *)&dest_image);
+
+      /* We could use a vk call to bind memory, but that would require
+       * creating a dummy memory object etc. so there's really no point.
+       */
+      src_image->bo = src_buffer->bo;
+      src_image->offset = src_buffer->offset + pRegions[r].srcOffset;
+      dest_image->bo = dest_buffer->bo;
+      dest_image->offset = dest_buffer->offset + pRegions[r].destOffset;
+
+      VkImageViewCreateInfo src_view_info = {
+         .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+         .image = (VkImage)src_image,
+         .viewType = VK_IMAGE_VIEW_TYPE_2D,
+         .format = VK_FORMAT_R8_UNORM,
+         .channels = {
+            VK_CHANNEL_SWIZZLE_R,
+            VK_CHANNEL_SWIZZLE_G,
+            VK_CHANNEL_SWIZZLE_B,
+            VK_CHANNEL_SWIZZLE_A
+         },
+         .subresourceRange = {
+            .aspect = VK_IMAGE_ASPECT_COLOR,
+            .baseMipLevel = 0,
+            .mipLevels = 1,
+            .baseArraySlice = 0,
+            .arraySize = 1
+         },
+         .minLod = 0
+      };
+
+      VkImageView src_view;
+      vkCreateImageView(vk_device, &src_view_info, &src_view);
+
+      VkColorAttachmentViewCreateInfo dest_view_info = {
+         .sType = VK_STRUCTURE_TYPE_COLOR_ATTACHMENT_VIEW_CREATE_INFO,
+         .image = (VkImage)dest_image,
+         .format = VK_FORMAT_R8_UNORM,
+         .mipLevel = 0,
+         .baseArraySlice = 0,
+         .arraySize = 1,
+      };
+
+      VkColorAttachmentView dest_view;
+      vkCreateColorAttachmentView(vk_device, &dest_view_info, &dest_view);
+
+      meta_emit_blit(cmd_buffer,
+                     (struct anv_surface_view *)src_view,
+                     (VkOffset3D) { 0, 0, 0 },
+                     (VkExtent3D) { pRegions[r].copySize, 0, 0 },
+                     (struct anv_surface_view *)dest_view,
+                     (VkOffset3D) { 0, 0, 0 },
+                     (VkExtent3D) { pRegions[r].copySize, 0, 0 });
+   }
+
+   meta_finish_blit(cmd_buffer, &saved_state);
 }
 
 void anv_CmdCopyImage(
-- 
2.30.2