[PATCH vkd3d v3 4/5] vkd3d: Implement support for D3D12_FEATURE_SHADER_CACHE.

[Conor McCarthy]

Signed-off-by: Conor McCarthy 
---
 include/vkd3d_d3d12.idl | 14 ++++++++++++++
 libs/vkd3d/device.c     | 19 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/include/vkd3d_d3d12.idl b/include/vkd3d_d3d12.idl
index 4c69454..60f36b4 100644
--- a/include/vkd3d_d3d12.idl
+++ b/include/vkd3d_d3d12.idl
@@ -184,6 +184,15 @@ typedef enum D3D12_PROGRAMMABLE_SAMPLE_POSITIONS_TIER
     D3D12_PROGRAMMABLE_SAMPLE_POSITIONS_TIER_2 = 0x2,
 }  D3D12_PROGRAMMABLE_SAMPLE_POSITIONS_TIER;

+typedef enum D3D12_SHADER_CACHE_SUPPORT_FLAGS
+{
+    D3D12_SHADER_CACHE_SUPPORT_NONE = 0x0,
+    D3D12_SHADER_CACHE_SUPPORT_SINGLE_PSO = 0x1,
+    D3D12_SHADER_CACHE_SUPPORT_LIBRARY = 0x2,
+    D3D12_SHADER_CACHE_SUPPORT_AUTOMATIC_INPROC_CACHE = 0x4,
+    D3D12_SHADER_CACHE_SUPPORT_AUTOMATIC_DISK_CACHE = 0x8,
+}  D3D12_SHADER_CACHE_SUPPORT_FLAGS;
+
 interface ID3D12Fence;
 interface ID3D12RootSignature;
 interface ID3D12Heap;
@@ -1640,6 +1649,11 @@ typedef struct D3D12_FEATURE_DATA_D3D12_OPTIONS2
     D3D12_PROGRAMMABLE_SAMPLE_POSITIONS_TIER ProgrammableSamplePositionsTier;
 }  D3D12_FEATURE_DATA_D3D12_OPTIONS2;

+typedef struct D3D12_FEATURE_DATA_SHADER_CACHE
+{
+    D3D12_SHADER_CACHE_SUPPORT_FLAGS SupportFlags;
+}  D3D12_FEATURE_DATA_SHADER_CACHE;
+
 typedef enum D3D12_FEATURE
 {
     D3D12_FEATURE_D3D12_OPTIONS = 0,
diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index 1063680..694c322 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -2766,6 +2766,25 @@ static HRESULT STDMETHODCALLTYPE d3d12_device_CheckFeatureSupport(ID3D12Device *
             return S_OK;
         }

+        case D3D12_FEATURE_SHADER_CACHE:
+        {
+            D3D12_FEATURE_DATA_SHADER_CACHE *data = feature_data;
+
+            if (feature_data_size != sizeof(*data))
+            {
+                WARN("Invalid size %u.\n", feature_data_size);
+                return E_INVALIDARG;
+            }
+
+            /* FIXME: The D3D12 documentation states that D3D12_SHADER_CACHE_SUPPORT_SINGLE_PSO is
+             * always supported, but the CachedPSO field of D3D12_GRAPHICS_PIPELINE_STATE_DESC is
+             * ignored and GetCachedBlob() is a stub. */
+            data->SupportFlags = D3D12_SHADER_CACHE_SUPPORT_NONE;
+
+            TRACE("Shader cache support %#x.\n", data->SupportFlags);
+            return S_OK;
+        }
+
         default:
             FIXME("Unhandled feature %#x.\n", feature);
             return E_NOTIMPL;