1 files changed, 146 insertions, 0 deletions
diff --git a/tools/gfx/d3d12/d3d12-resource.cpp b/tools/gfx/d3d12/d3d12-resource.cpp
new file mode 100644
index 000000000..8975f5825
--- /dev/null
+++ b/tools/gfx/d3d12/d3d12-resource.cpp
@@ -0,0 +1,146 @@
+// d3d12-resource.cpp
+#include "d3d12-resource.h"
+
+namespace gfx {
+using namespace Slang;
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! D3D12BarrierSubmitter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+void D3D12BarrierSubmitter::_flush()
+{
+	assert(m_numBarriers > 0);
+
+	if (m_commandList)
+	{
+		m_commandList->ResourceBarrier(UINT(m_numBarriers), m_barriers);
+	}
+	m_numBarriers = 0;
+}
+
+D3D12_RESOURCE_BARRIER& D3D12BarrierSubmitter::_expandOne()
+{
+	_flush();
+	return m_barriers[m_numBarriers++];
+}
+
+void D3D12BarrierSubmitter::transition(ID3D12Resource* resource, D3D12_RESOURCE_STATES prevState, D3D12_RESOURCE_STATES nextState)
+{
+    if (nextState != prevState)
+    {
+        D3D12_RESOURCE_BARRIER& barrier = expandOne();
+
+        const UINT subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
+        const D3D12_RESOURCE_BARRIER_FLAGS flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+
+        ::memset(&barrier, 0, sizeof(barrier));
+        barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+        barrier.Flags = flags;
+        barrier.Transition.pResource = resource;
+        barrier.Transition.StateBefore = prevState;
+        barrier.Transition.StateAfter = nextState;
+        barrier.Transition.Subresource = subresource;
+    }
+    else
+    {
+        if (nextState == D3D12_RESOURCE_STATE_UNORDERED_ACCESS)
+        {
+            D3D12_RESOURCE_BARRIER& barrier = expandOne();
+
+            ::memset(&barrier, 0, sizeof(barrier));
+            barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_UAV;
+            barrier.UAV.pResource = resource;
+        }
+    }
+}
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! D3D12ResourceBase !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+/* static */DXGI_FORMAT D3D12ResourceBase::calcFormat(D3DUtil::UsageType usage, ID3D12Resource* resource)
+{
+	return resource ? D3DUtil::calcFormat(usage, resource->GetDesc().Format) : DXGI_FORMAT_UNKNOWN;
+}
+
+void D3D12ResourceBase::transition(
+    D3D12_RESOURCE_STATES oldState,
+    D3D12_RESOURCE_STATES nextState,
+    D3D12BarrierSubmitter& submitter)
+{
+	// Transition only if there is a resource
+    if (m_resource && oldState != nextState)
+	{
+        submitter.transition(m_resource, oldState, nextState);
+    }
+}
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!! D3D12Resource !!!!!!!!!!!!!!!!!!!!!!!! */
+
+/* static */void D3D12Resource::setDebugName(ID3D12Resource* resource, const char* name)
+{
+    if (resource)
+    {
+        resource->SetName(String(name).toWString().begin());
+    }
+}
+
+void D3D12Resource::setDebugName(const char* name)
+{
+	setDebugName(m_resource, name);
+}
+
+void D3D12Resource::setDebugName(const wchar_t* name)
+{
+	if (m_resource)
+	{
+		m_resource->SetName(name);
+	}
+}
+
+void D3D12Resource::setResource(ID3D12Resource* resource)
+{
+	if (resource != m_resource)
+	{
+		if (resource)
+		{
+			resource->AddRef();
+		}
+		if (m_resource)
+		{
+			m_resource->Release();
+		}
+		m_resource = resource;
+	}
+}
+
+void D3D12Resource::setResourceNull()
+{
+	if (m_resource)
+	{
+		m_resource->Release();
+		m_resource = nullptr;
+	}
+}
+
+Result D3D12Resource::initCommitted(ID3D12Device* device, const D3D12_HEAP_PROPERTIES& heapProps, D3D12_HEAP_FLAGS heapFlags, const D3D12_RESOURCE_DESC& resourceDesc, D3D12_RESOURCE_STATES initState, const D3D12_CLEAR_VALUE * clearValue)
+{
+	setResourceNull();
+	ComPtr<ID3D12Resource> resource;
+	SLANG_RETURN_ON_FAIL(device->CreateCommittedResource(&heapProps, heapFlags, &resourceDesc, initState, clearValue, IID_PPV_ARGS(resource.writeRef())));
+	setResource(resource);
+	return SLANG_OK;
+}
+
+ID3D12Resource* D3D12Resource::detach()
+{
+	ID3D12Resource* resource = m_resource;
+	m_resource = nullptr;
+	return resource;
+}
+
+void D3D12Resource::swap(ComPtr<ID3D12Resource>& resourceInOut)
+{
+	ID3D12Resource* tmp = m_resource;
+	m_resource = resourceInOut.detach();
+	resourceInOut.attach(tmp);
+}
+
+} // renderer_test