114 lines
3.3 KiB
C#
114 lines
3.3 KiB
C#
using MoonWorks;
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using MoonWorks.Graphics;
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using MoonWorks.Math.Float;
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using System.Runtime.InteropServices;
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namespace MoonWorks.Test
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{
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class GetBufferDataGame : Game
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{
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public GetBufferDataGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
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{
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PositionVertex[] vertices = new PositionVertex[]
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{
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new PositionVertex(new Vector3(0, 0, 0)),
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new PositionVertex(new Vector3(0, 0, 1)),
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new PositionVertex(new Vector3(0, 1, 0)),
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new PositionVertex(new Vector3(0, 1, 1)),
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new PositionVertex(new Vector3(1, 0, 0)),
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new PositionVertex(new Vector3(1, 0, 1)),
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new PositionVertex(new Vector3(1, 1, 0)),
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new PositionVertex(new Vector3(1, 1, 1)),
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};
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PositionVertex[] otherVerts = new PositionVertex[]
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{
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new PositionVertex(new Vector3(1, 2, 3)),
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new PositionVertex(new Vector3(4, 5, 6)),
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new PositionVertex(new Vector3(7, 8, 9))
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};
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int vertexSize = Marshal.SizeOf<PositionVertex>();
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Buffer vertexBuffer = Buffer.Create<PositionVertex>(
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GraphicsDevice,
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BufferUsageFlags.Vertex,
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(uint) vertices.Length
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);
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CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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cmdbuf.SetBufferData(vertexBuffer, vertices);
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var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
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// Wait for the vertices to finish uploading...
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GraphicsDevice.WaitForFences(fence);
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GraphicsDevice.ReleaseFence(fence);
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// Read back and print out the vertex values
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PositionVertex[] readbackVertices = new PositionVertex[vertices.Length];
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vertexBuffer.GetData(readbackVertices);
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for (int i = 0; i < readbackVertices.Length; i += 1)
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{
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Logger.LogInfo(readbackVertices[i].ToString());
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}
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// Change the first three vertices
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cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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cmdbuf.SetBufferData(vertexBuffer, otherVerts);
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fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
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GraphicsDevice.WaitForFences(fence);
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GraphicsDevice.ReleaseFence(fence);
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// Read the updated buffer
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vertexBuffer.GetData(readbackVertices);
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Logger.LogInfo("=== Change first three vertices ===");
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for (int i = 0; i < readbackVertices.Length; i += 1)
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{
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Logger.LogInfo(readbackVertices[i].ToString());
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}
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// Change the last two vertices
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cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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cmdbuf.SetBufferData(
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vertexBuffer,
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otherVerts,
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(uint) (vertexSize * (vertices.Length - 2)),
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1,
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2
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);
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fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
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GraphicsDevice.WaitForFences(fence);
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GraphicsDevice.ReleaseFence(fence);
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// Read the updated buffer
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vertexBuffer.GetData(readbackVertices);
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Logger.LogInfo("=== Change last two vertices ===");
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for (int i = 0; i < readbackVertices.Length; i += 1)
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{
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Logger.LogInfo(readbackVertices[i].ToString());
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}
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}
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protected override void Update(System.TimeSpan delta) { }
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protected override void Draw(double alpha)
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{
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CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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Texture? swapchainTexture = cmdbuf.AcquireSwapchainTexture(MainWindow);
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if (swapchainTexture != null)
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{
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cmdbuf.BeginRenderPass(new ColorAttachmentInfo(swapchainTexture, Color.Black));
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cmdbuf.EndRenderPass();
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}
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GraphicsDevice.Submit(cmdbuf);
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}
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public static void Main(string[] args)
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{
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GetBufferDataGame game = new GetBufferDataGame();
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game.Run();
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}
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}
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}
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