Release v2.4 is out with Explicit State Transition Control

Author: diligentadmin December 9, 2018 0 Comments

Release v2.4 introduces explicit control of resources state transitions, fixes some multi-threading issues and implements a number of improvements to the API that make it better organized and more clear.

API changes:

• Added RESOURCE_STATE enum that defines the resource state
• Added RESOURCE_STATE_TRANSITION_MODE enum that controls resource state transition mode
• Added DRAW_FLAGS enum that controls state validation performed by Draw command
• Added Flags  member to DrawAttribs structure (values from DRAW_FLAGS)
• Added IndirectAttribsBufferStateTransitionMode  member to DrawAttribs and DispatchComputeAttribs structures
• Added StateTransitionDesc structure that describes resource state transition barrier
• Added IDeviceContext::TransitionResourceStates(Uint32 BarrierCount, StateTransitionDesc* pResourceBarriers) method
• Added IBuffer::SetState(), IBuffer::GetState(), ITexture::SetState(), ITexture::GetState() methods
• Added IShaderResourceBinding::InitializeStaticResources() to explicitly initialize static resources and avoid problems in multi-threaded environments
• Added InitStaticResources parameter to IPipelineState::CreateShaderResourceBinding() method to allow immediate initialization of static resources in a SRB
• Removed default SRB object
• Renamed/moved IBuffer::UpdateData()  to IDeviceContext::UpdateBuffer()
• Renamed/moved IBuffer::CopyData() to IDeviceContext::CopyBuffer()
• Renamed/moved IBuffer::Map() to IDeviceContext::MapBuffer()
• Renamed/moved IBuffer::Unmap()  to IDeviceContext::UnmapBuffer()
• Removed MapFlags  parameter
• Renamed/moved ITexture::UpdateData()  to IDeviceContext::UpdateTexture()
• Renamed/moved ITexture::CopyData() to IDeviceContext::CopyTexture()
• Renamed/moved ITexture::Map() to IDeviceContext::MapTextureSubresource()
• Renamed/moved ITexture::Unmap() to IDeviceContext::UnmapTextureSubresource()
• Moved ITextureView::GenerateMips() to IDeviceContext::GenerateMips()
• Added state transition mode parameters to IDeviceContext::UpdateBuffer(), IDeviceContext::UpdateTexture(), IDeviceContext::CopyBuffer(), IDeviceContext::CopyTexture(), IDeviceContext::SetVertexBuffers(),   IDeviceContext::SetIndexBuffers(), IDeviceContext::ClearRenderTargets(), and IDeviceContext::ClearDepthStencil()  methods
• Replaced COMMIT_SHADER_RESOURCES_FLAGS  enum with RESOURCE_STATE_TRANSITION_MODE
• Added ITextureD3D12::GetD3D12ResourceState(), IBufferD3D12::GetD3D12ResourceState(),
  IBufferVk::GetAccessFlags(), and ITextureVk::GetLayout() methods
• Added CopyTextureAttribs structure that combines all parameters of IDeviceContext::CopyTexture() method

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