anv: Add initial support for texel buffers

1 files changed, 44 insertions, 0 deletions

diff --git a/src/vulkan/anv_image.c b/src/vulkan/anv_image.c
index dc52e6b368c..ffc7ae8cae6 100644
--- a/src/vulkan/anv_image.c
+++ b/src/vulkan/anv_image.c
@@ -506,6 +506,50 @@ anv_DestroyImageView(VkDevice _device, VkImageView _iview,
    anv_free2(&device->alloc, pAllocator, iview);
 }
 
+VkResult
+anv_CreateBufferView(VkDevice _device,
+                     const VkBufferViewCreateInfo *pCreateInfo,
+                     const VkAllocationCallbacks *pAllocator,
+                     VkBufferView *pView)
+{
+   ANV_FROM_HANDLE(anv_device, device, _device);
+   ANV_FROM_HANDLE(anv_buffer, buffer, pCreateInfo->buffer);
+   struct anv_buffer_view *view;
+
+   /* TODO: Storage texel buffers */
+
+   view = anv_alloc2(&device->alloc, pAllocator, sizeof(*view), 8,
+                     VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
+   if (!view)
+      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+   view->buffer = buffer;
+   view->surface_state =
+      anv_state_pool_alloc(&device->surface_state_pool, 64, 64);
+
+   const struct anv_format *format =
+      anv_format_for_vk_format(pCreateInfo->format);
+
+   anv_fill_buffer_surface_state(device, view->surface_state.map, format,
+                                 pCreateInfo->offset, pCreateInfo->range,
+                                 format->isl_layout->bpb / 8);
+
+   *pView = anv_buffer_view_to_handle(view);
+
+   return VK_SUCCESS;
+}
+
+void
+anv_DestroyBufferView(VkDevice _device, VkBufferView bufferView,
+                      const VkAllocationCallbacks *pAllocator)
+{
+   ANV_FROM_HANDLE(anv_device, device, _device);
+   ANV_FROM_HANDLE(anv_buffer_view, view, bufferView);
+
+   anv_state_pool_free(&device->surface_state_pool, view->surface_state);
+   anv_free2(&device->alloc, pAllocator, view);
+}
+
 struct anv_surface *
 anv_image_get_surface_for_aspect_mask(struct anv_image *image, VkImageAspectFlags aspect_mask)
 {