[Mesa-dev] [PATCH 2/2] anv: Expose VK_EXT_scalar_block_layout

[Jason Ekstrand]

Our compile already splits UBO loads into scalars and the untyped
surface read messages we use for SSBO reads and writes only require
dword alignment.
---
 src/intel/vulkan/anv_device.c      | 7 +++++++
 src/intel/vulkan/anv_extensions.py | 1 +
 2 files changed, 8 insertions(+)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index ee35e013329..20533cb3cc0 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -922,6 +922,13 @@ void anv_GetPhysicalDeviceFeatures2(
          break;
       }
 
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SCALAR_BLOCK_LAYOUT_FEATURES_EXT: {
+         VkPhysicalDeviceScalarBlockLayoutFeaturesEXT *features =
+            (VkPhysicalDeviceScalarBlockLayoutFeaturesEXT *)ext;
+         features->scalarBlockLayout = true;
+         break;
+      }
+
       case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETER_FEATURES: {
          VkPhysicalDeviceShaderDrawParameterFeatures *features = (void *)ext;
          features->shaderDrawParameters = true;
diff --git a/src/intel/vulkan/anv_extensions.py b/src/intel/vulkan/anv_extensions.py
index e9afe06bb13..7c81228f705 100644
--- a/src/intel/vulkan/anv_extensions.py
+++ b/src/intel/vulkan/anv_extensions.py
@@ -122,6 +122,7 @@ EXTENSIONS = [
     Extension('VK_EXT_global_priority',                   1,
               'device->has_context_priority'),
     Extension('VK_EXT_pci_bus_info',                      1, True),
+    Extension('VK_EXT_scalar_block_layout',               1, True),
     Extension('VK_EXT_shader_viewport_index_layer',       1, True),
     Extension('VK_EXT_shader_stencil_export',             1, 'device->info.gen >= 9'),
     Extension('VK_EXT_vertex_attribute_divisor',          3, True),
-- 
2.19.1