From 515944254071a9066db58d37546207a6dbf43393 Mon Sep 17 00:00:00 2001
From: cosmonaut <evan@moonside.games>
Date: Wed, 6 Mar 2024 00:15:44 -0800
Subject: [PATCH] start converting tests to be D3D11-compatibility

---
 BasicCompute/BasicComputeGame.cs              |   7 +--
 BasicStencil/BasicStencilGame.cs              |   2 +-
 BasicTriangle/BasicTriangleGame.cs            |   2 +-
 ClearScreen/ClearScreenGame.cs                |   2 +-
 .../ClearScreen_MultiWindowGame.cs            |   7 ++-
 CompressedTextures/CompressedTexturesGame.cs  |   2 +-
 ComputeUniforms/ComputeUniformsGame.cs        |   2 +-
 CopyTexture/CopyTextureGame.cs                |  27 ++++-----
 Cube/CubeGame.cs                              |  30 ++++++----
 CullFace/CullFaceGame.cs                      |   2 +-
 DepthMSAA/DepthMSAAGame.cs                    |   2 +-
 DrawIndirect/DrawIndirectGame.cs              |   2 +-
 GetBufferData/GetBufferDataGame.cs            |  52 ++++++++----------
 .../InstancingAndOffsetsGame.cs               |   2 +-
 MSAA/MSAAGame.cs                              |   2 +-
 MSAACube/MSAACubeGame.cs                      |   2 +-
 .../Compiled/CalculateSquares.comp.refresh    | Bin 925 -> 1417 bytes
 .../Shaders/Compiled/FillTexture.comp.refresh | Bin 897 -> 1432 bytes
 .../Compiled/GradientTexture.comp.refresh     | Bin 1557 -> 2331 bytes
 .../Compiled/PositionColor.vert.refresh       | Bin 1061 -> 1808 bytes
 .../PositionColorInstanced.vert.refresh       | Bin 1733 -> 2786 bytes
 .../PositionColorWithMatrix.vert.refresh      | Bin 1357 -> 2240 bytes
 .../Compiled/PositionSampler.vert.refresh     | Bin 1269 -> 2168 bytes
 .../Shaders/Compiled/RawTriangle.vert.refresh | Bin 1577 -> 2764 bytes
 .../Shaders/Compiled/Skybox.frag.refresh      | Bin 649 -> 1280 bytes
 .../Shaders/Compiled/Skybox.vert.refresh      | Bin 1285 -> 2037 bytes
 .../Shaders/Compiled/SolidColor.frag.refresh  | Bin 457 -> 921 bytes
 .../Compiled/TexturedDepthQuad.frag.refresh   | Bin 1657 -> 2634 bytes
 .../Compiled/TexturedQuad.frag.refresh        | Bin 641 -> 1246 bytes
 .../Compiled/TexturedQuad.vert.refresh        | Bin 1097 -> 1874 bytes
 .../Compiled/TexturedQuad2DArray.frag.refresh | Bin 969 -> 1683 bytes
 .../Compiled/TexturedQuad3D.frag.refresh      | Bin 969 -> 1678 bytes
 .../TexturedQuadWithMatrix.vert.refresh       | Bin 1393 -> 2306 bytes
 ...TexturedQuadWithMultiplyColor.frag.refresh | Bin 917 -> 1636 bytes
 MoonWorks.Test.Common/CopyMoonlibs.targets    |  18 +++---
 MoonWorks.Test.Common/TestUtils.cs            |   2 +
 RenderTexture2D/RenderTexture2DGame.cs        |   2 +-
 WindowResizing/WindowResizingGame.cs          |   2 +-
 38 files changed, 84 insertions(+), 85 deletions(-)

diff --git a/BasicCompute/BasicComputeGame.cs b/BasicCompute/BasicComputeGame.cs
index 88c9e31..813310b 100644
--- a/BasicCompute/BasicComputeGame.cs
+++ b/BasicCompute/BasicComputeGame.cs
@@ -11,7 +11,7 @@ namespace MoonWorks.Test
 		private Sampler sampler;
 		private GpuBuffer vertexBuffer;
 
-		public BasicComputeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public BasicComputeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Create the compute pipeline that writes texture data
 			ShaderModule fillTextureComputeShaderModule = new ShaderModule(
@@ -115,15 +115,12 @@ namespace MoonWorks.Test
 
 			cmdbuf.EndComputePass();
 
-			cmdbuf.BeginCopyPass();
-			cmdbuf.DownloadFromBuffer(squaresBuffer, transferBuffer, TransferOptions.Overwrite);
-			cmdbuf.EndCopyPass();
-
 			var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
 			GraphicsDevice.WaitForFences(fence);
 			GraphicsDevice.ReleaseFence(fence);
 
 			// Print the squares!
+			GraphicsDevice.DownloadFromBuffer(squaresBuffer, transferBuffer, TransferOptions.Overwrite);
 			transferBuffer.GetData<uint>(squares, 0);
 			Logger.LogInfo("Squares of the first " + squares.Length + " integers: " + string.Join(", ", squares));
 		}
diff --git a/BasicStencil/BasicStencilGame.cs b/BasicStencil/BasicStencilGame.cs
index 9a635e7..0593e22 100644
--- a/BasicStencil/BasicStencilGame.cs
+++ b/BasicStencil/BasicStencilGame.cs
@@ -11,7 +11,7 @@ namespace MoonWorks.Test
 		private GpuBuffer vertexBuffer;
 		private Texture depthStencilTexture;
 
-		public BasicStencilGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public BasicStencilGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Load the shaders
 			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("PositionColor.vert"));
diff --git a/BasicTriangle/BasicTriangleGame.cs b/BasicTriangle/BasicTriangleGame.cs
index 490d1f6..bdf67a9 100644
--- a/BasicTriangle/BasicTriangleGame.cs
+++ b/BasicTriangle/BasicTriangleGame.cs
@@ -14,7 +14,7 @@ namespace MoonWorks.Test
 		private bool useSmallViewport;
 		private bool useScissorRect;
 
-		public BasicTriangleGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public BasicTriangleGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Left to toggle wireframe mode\nPress Down to toggle small viewport\nPress Right to toggle scissor rect");
 
diff --git a/ClearScreen/ClearScreenGame.cs b/ClearScreen/ClearScreenGame.cs
index 811a923..4982ffb 100644
--- a/ClearScreen/ClearScreenGame.cs
+++ b/ClearScreen/ClearScreenGame.cs
@@ -5,7 +5,7 @@ namespace MoonWorks.Test
 {
 	class ClearScreenGame : Game
 	{
-		public ClearScreenGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true) { }
+		public ClearScreenGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true) { }
 
 		protected override void Update(System.TimeSpan delta) { }
 
diff --git a/ClearScreen_MultiWindow/ClearScreen_MultiWindowGame.cs b/ClearScreen_MultiWindow/ClearScreen_MultiWindowGame.cs
index b41d901..51036f5 100644
--- a/ClearScreen_MultiWindow/ClearScreen_MultiWindowGame.cs
+++ b/ClearScreen_MultiWindow/ClearScreen_MultiWindowGame.cs
@@ -7,12 +7,17 @@ namespace MoonWorks.Test
 	{
 		private Window secondaryWindow;
 
-		public ClearScreen_MultiWindowGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public ClearScreen_MultiWindowGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
+			var (windowX, windowY) = MainWindow.Position;
+			MainWindow.SetPosition(windowX - 360, windowY);
+
 			secondaryWindow = new Window(
 				new WindowCreateInfo("Secondary Window", 640, 480, ScreenMode.Windowed, PresentMode.FIFO, false, false),
 				GraphicsDevice.WindowFlags
 			);
+			(windowX, windowY) = secondaryWindow.Position;
+			secondaryWindow.SetPosition(windowX + 360, windowY);
 			GraphicsDevice.ClaimWindow(secondaryWindow, PresentMode.FIFO);
 		}
 
diff --git a/CompressedTextures/CompressedTexturesGame.cs b/CompressedTextures/CompressedTexturesGame.cs
index c9234d9..8a37c89 100644
--- a/CompressedTextures/CompressedTexturesGame.cs
+++ b/CompressedTextures/CompressedTexturesGame.cs
@@ -21,7 +21,7 @@ namespace MoonWorks.Test
 
 		private int currentTextureIndex;
 
-		public CompressedTexturesGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public CompressedTexturesGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Left and Right to cycle between textures");
 			Logger.LogInfo("Setting texture to: " + textureNames[0]);
diff --git a/ComputeUniforms/ComputeUniformsGame.cs b/ComputeUniforms/ComputeUniformsGame.cs
index 12596c2..0c25d16 100644
--- a/ComputeUniforms/ComputeUniformsGame.cs
+++ b/ComputeUniforms/ComputeUniformsGame.cs
@@ -23,7 +23,7 @@ namespace MoonWorks.Test
 			}
 		}
 
-		public ComputeUniformsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public ComputeUniformsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Create the compute pipeline that writes texture data
 			ShaderModule gradientTextureComputeShaderModule = new ShaderModule(
diff --git a/CopyTexture/CopyTextureGame.cs b/CopyTexture/CopyTextureGame.cs
index 2b0f602..6bc89f9 100644
--- a/CopyTexture/CopyTextureGame.cs
+++ b/CopyTexture/CopyTextureGame.cs
@@ -14,7 +14,7 @@ namespace MoonWorks.Test
 		private Texture textureSmallCopy;
 		private Sampler sampler;
 
-		public unsafe CopyTextureGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public unsafe CopyTextureGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Load the shaders
 			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad.vert"));
@@ -115,22 +115,19 @@ namespace MoonWorks.Test
 			// Render the half-size copy
 			cmdbuf.Blit(originalTexture, textureSmallCopy, Filter.Linear, WriteOptions.SafeOverwrite);
 
-			// Copy the texture to a transfer buffer
-			TransferBuffer compareBuffer = new TransferBuffer(GraphicsDevice, byteCount);
-
-			cmdbuf.BeginCopyPass();
-			cmdbuf.DownloadFromTexture(
-				originalTexture,
-				compareBuffer,
-				new BufferImageCopy(0, 0, 0),
-				TransferOptions.Overwrite
-			);
-			cmdbuf.EndCopyPass();
-
 			var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
 			GraphicsDevice.WaitForFences(fence);
 			GraphicsDevice.ReleaseFence(fence);
 
+			// Copy the texture to a transfer buffer
+			TransferBuffer compareBuffer = new TransferBuffer(GraphicsDevice, byteCount);
+
+			GraphicsDevice.DownloadFromTexture(
+				textureCopy,
+				compareBuffer,
+				TransferOptions.Overwrite
+			);
+
 			// Compare the original bytes to the copied bytes.
 			var copiedBytes = NativeMemory.Alloc(byteCount);
 			var copiedSpan = new System.Span<byte>(copiedBytes, (int) byteCount);
@@ -140,12 +137,12 @@ namespace MoonWorks.Test
 
 			if (System.MemoryExtensions.SequenceEqual(originalSpan, copiedSpan))
 			{
-				Logger.LogError("SUCCESS! Original texture bytes and the bytes from CopyTextureToBuffer match!");
+				Logger.LogError("SUCCESS! Original texture bytes and the downloaded bytes match!");
 
 			}
 			else
 			{
-				Logger.LogError("FAIL! Original texture bytes do not match bytes from CopyTextureToBuffer!");
+				Logger.LogError("FAIL! Original texture bytes do not match downloaded bytes!");
 			}
 
 			RefreshCS.Refresh.Refresh_Image_Free(pixels);
diff --git a/Cube/CubeGame.cs b/Cube/CubeGame.cs
index 05fa035..6dcbdad 100644
--- a/Cube/CubeGame.cs
+++ b/Cube/CubeGame.cs
@@ -26,6 +26,7 @@ namespace MoonWorks.Test
 
 		private TransferBuffer screenshotTransferBuffer;
 		private Texture screenshotTexture;
+		private Fence? screenshotFence;
 
 		private Texture skyboxTexture;
 		private Sampler skyboxSampler;
@@ -38,6 +39,7 @@ namespace MoonWorks.Test
 		private Vector3 camPos = new Vector3(0, 1.5f, 4f);
 
 		private bool takeScreenshot;
+		private bool screenshotInProgress;
 		private bool swapchainCopied; // don't want to take screenshot if the swapchain was invalid
 
 		struct DepthUniforms
@@ -86,7 +88,7 @@ namespace MoonWorks.Test
 			cubemapUploader.Dispose();
 		}
 
-		public CubeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public CubeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			ShaderModule cubeVertShaderModule = new ShaderModule(
 				GraphicsDevice,
@@ -360,7 +362,7 @@ namespace MoonWorks.Test
 				Logger.LogInfo("Depth-Only Mode enabled: " + depthOnlyEnabled);
 			}
 
-			if (TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Right))
+			if (!screenshotInProgress && TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Right))
 			{
 				takeScreenshot = true;
 			}
@@ -461,32 +463,31 @@ namespace MoonWorks.Test
 				}
 			}
 
-			GraphicsDevice.Submit(cmdbuf);
-
 			if (takeScreenshot && swapchainCopied)
 			{
+				screenshotFence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
 				Task.Run(TakeScreenshot);
 
 				takeScreenshot = false;
 				swapchainCopied = false;
 			}
+			else
+			{
+				GraphicsDevice.Submit(cmdbuf);
+			}
 		}
 
 		private unsafe void TakeScreenshot()
 		{
-			var commandBuffer = GraphicsDevice.AcquireCommandBuffer();
+			screenshotInProgress = true;
 
-			commandBuffer.BeginCopyPass();
-			commandBuffer.DownloadFromTexture(
+			GraphicsDevice.WaitForFences(screenshotFence);
+
+			GraphicsDevice.DownloadFromTexture(
 				screenshotTexture,
 				screenshotTransferBuffer,
 				TransferOptions.Overwrite
 			);
-			commandBuffer.EndCopyPass();
-
-			var fence = GraphicsDevice.SubmitAndAcquireFence(commandBuffer);
-			GraphicsDevice.WaitForFences(fence);
-			GraphicsDevice.ReleaseFence(fence);
 
 			ImageUtils.SavePNG(
 				Path.Combine(System.AppContext.BaseDirectory, "screenshot.png"),
@@ -496,6 +497,11 @@ namespace MoonWorks.Test
 				(int) screenshotTexture.Height,
 				screenshotTexture.Format == TextureFormat.B8G8R8A8
 			);
+
+			GraphicsDevice.ReleaseFence(screenshotFence);
+			screenshotFence = null;
+
+			screenshotInProgress = false;
 		}
 
 		public static void Main(string[] args)
diff --git a/CullFace/CullFaceGame.cs b/CullFace/CullFaceGame.cs
index bba75c2..01c6775 100644
--- a/CullFace/CullFaceGame.cs
+++ b/CullFace/CullFaceGame.cs
@@ -17,7 +17,7 @@ namespace MoonWorks.Test
 
 		private bool useClockwiseWinding;
 
-		public CullFaceGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public CullFaceGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Down to toggle the winding order of the triangles (default is counter-clockwise)");
 
diff --git a/DepthMSAA/DepthMSAAGame.cs b/DepthMSAA/DepthMSAAGame.cs
index 48d77fa..a9289f1 100644
--- a/DepthMSAA/DepthMSAAGame.cs
+++ b/DepthMSAA/DepthMSAAGame.cs
@@ -21,7 +21,7 @@ namespace MoonWorks.Test
 
 		private SampleCount currentSampleCount = SampleCount.Four;
 
-		public DepthMSAAGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public DepthMSAAGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Left and Right to cycle between sample counts");
 			Logger.LogInfo("Setting sample count to: " + currentSampleCount);
diff --git a/DrawIndirect/DrawIndirectGame.cs b/DrawIndirect/DrawIndirectGame.cs
index ad689f8..203d34e 100644
--- a/DrawIndirect/DrawIndirectGame.cs
+++ b/DrawIndirect/DrawIndirectGame.cs
@@ -10,7 +10,7 @@ namespace MoonWorks.Test
 		private GpuBuffer vertexBuffer;
 		private GpuBuffer drawBuffer;
 
-		public DrawIndirectGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public DrawIndirectGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Load the shaders
 			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("PositionColor.vert"));
diff --git a/GetBufferData/GetBufferDataGame.cs b/GetBufferData/GetBufferDataGame.cs
index ae5ef67..98bdb61 100644
--- a/GetBufferData/GetBufferDataGame.cs
+++ b/GetBufferData/GetBufferDataGame.cs
@@ -6,7 +6,7 @@ namespace MoonWorks.Test
 {
 	class GetBufferDataGame : Game
 	{
-		public GetBufferDataGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public GetBufferDataGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			var vertices = new System.Span<PositionVertex>(
             [
@@ -33,24 +33,19 @@ namespace MoonWorks.Test
 
 			var vertexBuffer = resourceUploader.CreateBuffer(vertices, BufferUsageFlags.Vertex);
 
-			resourceUploader.Upload();
+			// Wait for the vertices to finish copying...
+			resourceUploader.UploadAndWait();
 			resourceUploader.Dispose();
 
 			var transferBuffer = new TransferBuffer(GraphicsDevice, vertexBuffer.Size);
 
-			CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-
-			cmdbuf.BeginCopyPass();
-			cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer, TransferOptions.Overwrite);
-			cmdbuf.EndCopyPass();
-
-			var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
-
-			// Wait for the vertices to finish copying...
-			GraphicsDevice.WaitForFences(fence);
-			GraphicsDevice.ReleaseFence(fence);
-
 			// Read back and print out the vertex values
+			GraphicsDevice.DownloadFromBuffer(
+				vertexBuffer,
+				transferBuffer,
+				TransferOptions.Overwrite
+			);
+
 			PositionVertex[] readbackVertices = new PositionVertex[vertices.Length];
 			transferBuffer.GetData<PositionVertex>(readbackVertices);
 			for (int i = 0; i < readbackVertices.Length; i += 1)
@@ -59,23 +54,22 @@ namespace MoonWorks.Test
 			}
 
 			// Change the first three vertices and upload
-			cmdbuf = GraphicsDevice.AcquireCommandBuffer();
 			transferBuffer.SetData(otherVerts, TransferOptions.Overwrite);
+
+			var cmdbuf = GraphicsDevice.AcquireCommandBuffer();
 			cmdbuf.BeginCopyPass();
 			cmdbuf.UploadToBuffer(transferBuffer, vertexBuffer, WriteOptions.SafeOverwrite);
 			cmdbuf.EndCopyPass();
-			fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
+			var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
 			GraphicsDevice.WaitForFences(fence);
 			GraphicsDevice.ReleaseFence(fence);
 
 			// Download the data
-			cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-			cmdbuf.BeginCopyPass();
-			cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer, TransferOptions.Overwrite);
-			cmdbuf.EndCopyPass();
-			fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
-			GraphicsDevice.WaitForFences(fence);
-			GraphicsDevice.ReleaseFence(fence);
+			GraphicsDevice.DownloadFromBuffer(
+				vertexBuffer,
+				transferBuffer,
+				TransferOptions.Overwrite
+			);
 
 			// Read the updated buffer
 			transferBuffer.GetData<PositionVertex>(readbackVertices);
@@ -103,13 +97,11 @@ namespace MoonWorks.Test
 			GraphicsDevice.WaitForFences(fence);
 			GraphicsDevice.ReleaseFence(fence);
 
-			cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-			cmdbuf.BeginCopyPass();
-			cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer, TransferOptions.Overwrite);
-			cmdbuf.EndCopyPass();
-			fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
-			GraphicsDevice.WaitForFences(fence);
-			GraphicsDevice.ReleaseFence(fence);
+			GraphicsDevice.DownloadFromBuffer(
+				vertexBuffer,
+				transferBuffer,
+				TransferOptions.Overwrite
+			);
 
 			// Read the updated buffer
 			transferBuffer.GetData<PositionVertex>(readbackVertices);
diff --git a/InstancingAndOffsets/InstancingAndOffsetsGame.cs b/InstancingAndOffsets/InstancingAndOffsetsGame.cs
index 45db9e0..1dd0a8d 100644
--- a/InstancingAndOffsets/InstancingAndOffsetsGame.cs
+++ b/InstancingAndOffsets/InstancingAndOffsetsGame.cs
@@ -13,7 +13,7 @@ namespace MoonWorks.Test
 		private bool useVertexOffset;
 		private bool useIndexOffset;
 
-		public InstancingAndOffsetsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public InstancingAndOffsetsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Left to toggle vertex offset\nPress Right to toggle index offset");
 
diff --git a/MSAA/MSAAGame.cs b/MSAA/MSAAGame.cs
index 409c9ce..2b81813 100644
--- a/MSAA/MSAAGame.cs
+++ b/MSAA/MSAAGame.cs
@@ -16,7 +16,7 @@ namespace MoonWorks.Test
 
 		private SampleCount currentSampleCount = SampleCount.Four;
 
-		public MSAAGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public MSAAGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Left and Right to cycle between sample counts");
 			Logger.LogInfo("Setting sample count to: " + currentSampleCount);
diff --git a/MSAACube/MSAACubeGame.cs b/MSAACube/MSAACubeGame.cs
index ea2b220..abc9e91 100644
--- a/MSAACube/MSAACubeGame.cs
+++ b/MSAACube/MSAACubeGame.cs
@@ -20,7 +20,7 @@ namespace MoonWorks.Test
 
 		private SampleCount currentSampleCount = SampleCount.Four;
 
-		public MSAACubeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public MSAACubeGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			Logger.LogInfo("Press Down to view the other side of the cubemap");
 			Logger.LogInfo("Press Left and Right to cycle between sample counts");
diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/CalculateSquares.comp.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/CalculateSquares.comp.refresh
index db1640d81477885692fe459832a23b0a04372811..14da96dbf355d9d433d1f4b2189d89f6ab464995 100644
GIT binary patch
delta 438
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/FillTexture.comp.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/FillTexture.comp.refresh
index 9cc02045dc2d4595c18a3f708f4632c23d161e10..82b6cfe5116961c468585af1cdaec3800eaafbbc 100644
GIT binary patch
delta 553
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delta 13
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delta 13
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionColorInstanced.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionColorInstanced.vert.refresh
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionColorWithMatrix.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionColorWithMatrix.vert.refresh
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionSampler.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/PositionSampler.vert.refresh
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/RawTriangle.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/RawTriangle.vert.refresh
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delta 13
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delta 13
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delta 13
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delta 13
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delta 13
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diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad.vert.refresh
index e57c13c86f5f5af4b1bdc9438406b2e7d1e46da9..4729e32255b1695cac6ebe3e65f435d704fe5780 100644
GIT binary patch
literal 1874
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BP=Wve

delta 13
Ucmcb_cano8$Sv4oBZn&s03Wmi>i_@%

diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad2DArray.frag.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad2DArray.frag.refresh
index 3587389d3175b0ca0fc1f3e8d11df5ddec70e2ce..df4b41c6650a4f6fdaa85efc3077c102cf5d72b9 100644
GIT binary patch
delta 733
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QS3t?}T4e@@rdT`nFJVyX3IG5A

delta 13
UcmbQtdy<_c$Sv4oBgau@03B)sDF6Tf

diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad3D.frag.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuad3D.frag.refresh
index a94da746b3527463cb657efade61409a75a4eee9..8fd6d2bbccb727879d5bef6a11fb720e503dfb27 100644
GIT binary patch
delta 728
zcmZuv%WA?v6iscRC6IrZWdsqcuKHRuR_aPIR=OL;IFklrCd^Dqp-BF~f9by4F8Wu!
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D%%11{

delta 13
UcmeC<J;}}z<QD9)k>e;c039g=Bme*a

diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuadWithMatrix.vert.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuadWithMatrix.vert.refresh
index ba7f4e1abb8ee19370d449afd427e4102bc0a930..c07a5138a236d0cdddbef044151a53a40d1884f1 100644
GIT binary patch
delta 934
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delta 13
UcmZn?`pCr+<QD9)kt3HC03GoI@&Et;

diff --git a/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuadWithMultiplyColor.frag.refresh b/MoonWorks.Test.Common/Content/Shaders/Compiled/TexturedQuadWithMultiplyColor.frag.refresh
index 079835c80985b68b7cb9e78ad3d4c21161c7fdc5..e626e5b9c56035e5641490d924e68316fdbf7548 100644
GIT binary patch
delta 738
zcmZvaPfmkC6vpvSq9JmJx1`22wdtx_7g8I$Fl|b0+)bu*Ad^yt%nU|j8qVOtgLnx~
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N{ZdJp!B}h^`v<`k>`4Fs

delta 13
UcmaFDGnJhs$Sv4oBgaH$03O!_5dZ)H

diff --git a/MoonWorks.Test.Common/CopyMoonlibs.targets b/MoonWorks.Test.Common/CopyMoonlibs.targets
index 4641909..98312e8 100644
--- a/MoonWorks.Test.Common/CopyMoonlibs.targets
+++ b/MoonWorks.Test.Common/CopyMoonlibs.targets
@@ -8,43 +8,43 @@
 	<ItemGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))">
 		<Content Include="..\..\moonlibs\x64\FAudio.dll">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\x64\Refresh.dll">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\x64\SDL2.dll">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\x64\dav1dfile.dll">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 	</ItemGroup>
 	<ItemGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))">
 		<Content Include="..\..\moonlibs\lib64\libFAudio.*">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\lib64\libRefresh.*">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\lib64\libSDL2-2.0.*">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 		<Content Include="..\..\moonlibs\windows\libdav1dfile.*">
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 	</ItemGroup>
 	<ItemGroup Condition="$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))">
 		<Content Include="..\..\moonlibs\osx\**\*.*" >
 			<Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
-			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
 		</Content>
 	</ItemGroup>
 
diff --git a/MoonWorks.Test.Common/TestUtils.cs b/MoonWorks.Test.Common/TestUtils.cs
index 89318d9..11b6668 100644
--- a/MoonWorks.Test.Common/TestUtils.cs
+++ b/MoonWorks.Test.Common/TestUtils.cs
@@ -4,6 +4,8 @@ namespace MoonWorks.Test
 {
 	public static class TestUtils
 	{
+		public static Backend DefaultBackend = Backend.D3D11; // change this to test different backends
+
 		public static WindowCreateInfo GetStandardWindowCreateInfo()
 		{
 			return new WindowCreateInfo(
diff --git a/RenderTexture2D/RenderTexture2DGame.cs b/RenderTexture2D/RenderTexture2DGame.cs
index 102d714..9c4337a 100644
--- a/RenderTexture2D/RenderTexture2DGame.cs
+++ b/RenderTexture2D/RenderTexture2DGame.cs
@@ -12,7 +12,7 @@ namespace MoonWorks.Test
 		private Texture[] textures = new Texture[4];
 		private Sampler sampler;
 
-		public RenderTexture2DGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public RenderTexture2DGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			// Load the shaders
 			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad.vert"));
diff --git a/WindowResizing/WindowResizingGame.cs b/WindowResizing/WindowResizingGame.cs
index 4d9dff7..a85853c 100644
--- a/WindowResizing/WindowResizingGame.cs
+++ b/WindowResizing/WindowResizingGame.cs
@@ -20,7 +20,7 @@ namespace MoonWorks.Test
 			new Res(3840, 2160),
 		};
 
-		public WindowResizingGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
+		public WindowResizingGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.DefaultBackend, 60, true)
 		{
 			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("RawTriangle.vert"));
 			ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("SolidColor.frag"));