Fix exporting R8 files as PNG using libpng · microsoft/DirectXTex@3ac7c85

enumerator 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_DISCARD' in switch of enum 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE' is not handled

enumerator 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE' in switch of enum 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE' is not handled

enumerator 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_NO_ACCESS' in switch of enum 'D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE' is not handled

enumerator 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_DISCARD' in switch of enum 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE' is not handled

enumerator 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE' in switch of enum 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE' is not handled

enumerator 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_NO_ACCESS' in switch of enum 'D3D12_RENDER_PASS_ENDING_ACCESS_TYPE' is not handled

Provide feedback