diff --git a/include/vkd3d_d3d12.idl b/include/vkd3d_d3d12.idl
index dcaf0a69..48dfc312 100644
--- a/include/vkd3d_d3d12.idl
+++ b/include/vkd3d_d3d12.idl
@@ -25,28 +25,27 @@ import "vkd3d_d3dcommon.idl";
 cpp_quote("#ifndef _D3D12_CONSTANTS")
 cpp_quote("#define _D3D12_CONSTANTS")
 
-const UINT D3D12_CS_TGSM_REGISTER_COUNT = 8192;
-const UINT D3D12_MAX_ROOT_COST = 64;
-const UINT D3D12_VIEWPORT_BOUNDS_MAX = 32767;
-const INT D3D12_VIEWPORT_BOUNDS_MIN = -32768;
-
-const UINT D3D12_COMMONSHADER_CONSTANT_BUFFER_REGISTER_COUNT = 15;
-
 const UINT D3D12_APPEND_ALIGNED_ELEMENT = 0xffffffff;
+const UINT D3D12_COMMONSHADER_CONSTANT_BUFFER_REGISTER_COUNT = 15;
+const UINT D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT = 256;
+const UINT D3D12_CS_TGSM_REGISTER_COUNT = 8192;
 cpp_quote("#define D3D12_DEFAULT_BLEND_FACTOR_ALPHA (1.0f)")
 cpp_quote("#define D3D12_DEFAULT_BLEND_FACTOR_BLUE (1.0f)")
 cpp_quote("#define D3D12_DEFAULT_BLEND_FACTOR_GREEN (1.0f)")
 cpp_quote("#define D3D12_DEFAULT_BLEND_FACTOR_RED (1.0f)")
 const UINT D3D12_DEFAULT_DEPTH_BIAS = 0;
 cpp_quote("#define D3D12_DEFAULT_DEPTH_BIAS_CLAMP (0.0f)")
+const UINT D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 4194304;
+const UINT D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
 cpp_quote("#define D3D12_DEFAULT_SLOPE_SCALED_DEPTH_BIAS (0.0f)")
 const UINT D3D12_DEFAULT_STENCIL_READ_MASK = 0xff;
 const UINT D3D12_DEFAULT_STENCIL_WRITE_MASK = 0xff;
 const UINT D3D12_DESCRIPTOR_RANGE_OFFSET_APPEND = 0xffffffff;
 cpp_quote("#define D3D12_FLOAT32_MAX (3.402823466e+38f)")
 const UINT D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT = 32;
+const UINT D3D12_MAX_ROOT_COST = 64;
 const UINT D3D12_PACKED_TILE = 0xffffffff;
-const UINT D3D12_UAV_SLOT_COUNT = 64;
+const UINT D3D12_RAW_UAV_SRV_BYTE_ALIGNMENT = 16;
 const UINT D3D12_REQ_CONSTANT_BUFFER_ELEMENT_COUNT = 4096;
 const UINT D3D12_REQ_IMMEDIATE_CONSTANT_BUFFER_ELEMENT_COUNT = 4096;
 const UINT D3D12_REQ_MIP_LEVELS = 15;
@@ -58,25 +57,24 @@ const UINT D3D12_REQ_TEXTURE3D_U_V_OR_W_DIMENSION = 2048;
 const UINT D3D12_REQ_TEXTURECUBE_DIMENSION = 16384;
 const UINT D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES = 0xffffffff;
 const UINT D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT = 8;
+const UINT D3D12_SMALL_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
+const UINT D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT = 4096;
 const UINT D3D12_SO_BUFFER_MAX_STRIDE_IN_BYTES = 2048;
 const UINT D3D12_SO_BUFFER_SLOT_COUNT = 4;
 const UINT D3D12_SO_DDI_REGISTER_INDEX_DENOTING_GAP = 0xffffffff;
 const UINT D3D12_SO_NO_RASTERIZED_STREAM = 0xffffffff;
 const UINT D3D12_SO_OUTPUT_COMPONENT_COUNT = 128;
 const UINT D3D12_SO_STREAM_COUNT = 4;
-const UINT D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT = 256;
-const UINT D3D12_DEFAULT_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 4194304;
-const UINT D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
-const UINT D3D12_RAW_UAV_SRV_BYTE_ALIGNMENT = 16;
-const UINT D3D12_SMALL_MSAA_RESOURCE_PLACEMENT_ALIGNMENT = 65536;
-const UINT D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT = 4096;
 const UINT D3D12_STANDARD_MAXIMUM_ELEMENT_ALIGNMENT_BYTE_MULTIPLE = 4;
 const UINT D3D12_TEXTURE_DATA_PITCH_ALIGNMENT = 256;
 const UINT D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT = 512;
 const UINT D3D12_TILED_RESOURCE_TILE_SIZE_IN_BYTES = 65536;
 const UINT D3D12_UAV_COUNTER_PLACEMENT_ALIGNMENT = 4096;
-const UINT D3D12_VS_INPUT_REGISTER_COUNT = 32;
+const UINT D3D12_UAV_SLOT_COUNT = 64;
 const UINT D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE = 16;
+const UINT D3D12_VIEWPORT_BOUNDS_MAX = 32767;
+const INT D3D12_VIEWPORT_BOUNDS_MIN = -32768;
+const UINT D3D12_VS_INPUT_REGISTER_COUNT = 32;
 
 cpp_quote("#endif")