Buffer allocation backend. (#2045)

* removed initialization of upload resource for CPU visible buffers (D3D12, Vulkan)

* reverted slang-gfx.h change

* declared DescBase::hasCpuAccessFlag() const to make backend changes compile under gcc

* commit before checking master branch

* commit before merge

* commit before checking master

* commit before merging upstream

* revert vulkan changes

* commit before testing on master

* commit before merge with master

* reverted bad merge changes

* reverted more bad merge changes in render-d3d12.cpp

* reverted buffer transition in _uploadBufferData

* implemented bufferBarrier() in render-d3d12.cpp

* reverted uneccesary transition in createBuffer

* create staging buffer even when AccessFlag::None passed to D3D11 createBufferResource

* renamed AccessFlags to MemoryType

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/render-test/render-test-main.cpp b/tools/render-test/render-test-main.cpp
index 16a725f2b..4893ad890 100644
--- a/tools/render-test/render-test-main.cpp
+++ b/tools/render-test/render-test-main.cpp
@@ -558,7 +558,7 @@ SlangResult RenderTestApp::initialize(
                 IBufferResource::Desc vertexBufferDesc;
                 vertexBufferDesc.type = IResource::Type::Buffer;
                 vertexBufferDesc.sizeInBytes = kVertexCount * sizeof(Vertex);
-                vertexBufferDesc.cpuAccessFlags = AccessFlag::Write;
+                vertexBufferDesc.cpuAccessFlags = MemoryType::CpuWrite;
                 vertexBufferDesc.defaultState = ResourceState::VertexBuffer;
                 vertexBufferDesc.allowedStates = ResourceStateSet(ResourceState::VertexBuffer);
 
@@ -909,7 +909,7 @@ Result RenderTestApp::writeBindingOutput(const String& fileName)
             const size_t bufferSize = bufferDesc.sizeInBytes;
 
             ComPtr<ISlangBlob> blob;
-            if(bufferDesc.cpuAccessFlags & AccessFlag::Read)
+            if(bufferDesc.cpuAccessFlags & MemoryType::CpuRead)
             {
                 // The buffer is already allocated for CPU access, so we can read it back directly.
                 //
@@ -920,7 +920,7 @@ Result RenderTestApp::writeBindingOutput(const String& fileName)
                 // The buffer is not CPU-readable, so we will copy it using a staging buffer.
 
                 auto stagingBufferDesc = bufferDesc;
-                stagingBufferDesc.cpuAccessFlags = AccessFlag::Read;
+                stagingBufferDesc.cpuAccessFlags = MemoryType::CpuRead;
                 stagingBufferDesc.allowedStates =
                     ResourceStateSet(ResourceState::CopyDestination, ResourceState::CopySource);
                 stagingBufferDesc.defaultState = ResourceState::CopyDestination;