Support D3D12_2 via WARP

Kode · Nov 19, 2024 · e31c3ef · e31c3ef
1 parent a64d716
commit e31c3ef
Showing 1 changed file with 22 additions and 2 deletions.
diff --git a/Backends/Graphics5/Direct3D12/Sources/kope/direct3d12/device.cpp b/Backends/Graphics5/Direct3D12/Sources/kope/direct3d12/device.cpp
@@ -73,9 +73,29 @@ void kope_d3d12_device_create(kope_g5_device *device, const kope_g5_device_wishl
 
 		IDXGIAdapter *adapter;
 		dxgi_factory->EnumWarpAdapter(IID_PPV_ARGS(&adapter));
-		kinc_microsoft_affirm(D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_12_1, IID_PPV_ARGS(&device->d3d12.device)));
+
+		result = D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_12_2, IID_PPV_ARGS(&device->d3d12.device));
+		if (result == S_OK) {
+			kinc_log(KINC_LOG_LEVEL_INFO, "%s", "Direct3D running on feature level 12.2.");
+		}
+
+		if (result != S_OK) {
+			result = D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_12_1, IID_PPV_ARGS(&device->d3d12.device));
+			if (result == S_OK) {
+				kinc_log(KINC_LOG_LEVEL_INFO, "%s", "Direct3D running on feature level 12.1.");
+			}
+		}
+
+		if (result != S_OK) {
+			result = D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_12_0, IID_PPV_ARGS(&device->d3d12.device));
+			if (result == S_OK) {
+				kinc_log(KINC_LOG_LEVEL_INFO, "%s", "Direct3D running on feature level 12.0.");
+			}
+		}
 	}
 
+	assert(result == S_OK);
+
 #if defined(KOPE_NVAPI) && !defined(NDEBUG)
 	NvAPI_Initialize();
 	NvAPI_D3D12_EnableRaytracingValidation(device->d3d12.device, NVAPI_D3D12_RAYTRACING_VALIDATION_FLAG_NONE);
@@ -797,7 +817,7 @@ void kope_d3d12_device_create_raytracing_hierarchy(kope_g5_device *device, kope_
 	kope_g5_device_create_buffer(device, &scratch_params, &hierarchy->d3d12.scratch_buffer); // TODO: delete later
 
 	kope_g5_buffer_parameters update_scratch_params;
-	update_scratch_params.size = prebuild_info.UpdateScratchDataSizeInBytes;
+	update_scratch_params.size = prebuild_info.UpdateScratchDataSizeInBytes > 0 ? prebuild_info.UpdateScratchDataSizeInBytes : 1;
 	update_scratch_params.usage_flags = KOPE_G5_BUFFER_USAGE_READ_WRITE;
 	kope_g5_device_create_buffer(device, &update_scratch_params, &hierarchy->d3d12.update_scratch_buffer);