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MoonWorksGraphicsTests
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update GetBufferData

refresh2
cosmonaut 2024-02-23 13:04:59 -08:00
parent c878a26b74
commit c2f1a02ba3
1 changed files with 56 additions and 30 deletions
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82
GetBufferData/GetBufferDataGame.cs
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@ -1,5 +1,4 @@
using MoonWorks;
using MoonWorks.Graphics;
using MoonWorks.Graphics;
using MoonWorks.Math.Float;
using System.Runtime.InteropServices;
@ -9,8 +8,8 @@ namespace MoonWorks.Test
{
public GetBufferDataGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
{
PositionVertex[] vertices = new PositionVertex[]
{
var vertices = new System.Span<PositionVertex>(
[
new PositionVertex(new Vector3(0, 0, 0)),
new PositionVertex(new Vector3(0, 0, 1)),
new PositionVertex(new Vector3(0, 1, 0)),
@ -19,69 +18,97 @@ namespace MoonWorks.Test
new PositionVertex(new Vector3(1, 0, 1)),
new PositionVertex(new Vector3(1, 1, 0)),
new PositionVertex(new Vector3(1, 1, 1)),
};
]);
PositionVertex[] otherVerts = new PositionVertex[]
{
var otherVerts = new System.Span<PositionVertex>(
[
new PositionVertex(new Vector3(1, 2, 3)),
new PositionVertex(new Vector3(4, 5, 6)),
new PositionVertex(new Vector3(7, 8, 9))
};
]);
int vertexSize = Marshal.SizeOf<PositionVertex>();
Buffer vertexBuffer = Buffer.Create<PositionVertex>(
GraphicsDevice,
BufferUsageFlags.Vertex,
(uint) vertices.Length
);
var resourceInitializer = new ResourceInitializer(GraphicsDevice);
var vertexBuffer = resourceInitializer.CreateBuffer(vertices, BufferUsageFlags.Vertex);
resourceInitializer.Upload();
resourceInitializer.Dispose();
var transferBuffer = new TransferBuffer(GraphicsDevice, vertexBuffer.Size);
CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.SetBufferData(vertexBuffer, vertices);
cmdbuf.BeginCopyPass();
cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer);
cmdbuf.EndCopyPass();
var fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
// Wait for the vertices to finish uploading...
// Wait for the vertices to finish copying...
GraphicsDevice.WaitForFences(fence);
GraphicsDevice.ReleaseFence(fence);
// Read back and print out the vertex values
PositionVertex[] readbackVertices = new PositionVertex[vertices.Length];
vertexBuffer.GetData(readbackVertices);
transferBuffer.GetData<PositionVertex>(readbackVertices);
for (int i = 0; i < readbackVertices.Length; i += 1)
{
Logger.LogInfo(readbackVertices[i].ToString());
}
// Change the first three vertices
// Change the first three vertices and upload
cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.SetBufferData(vertexBuffer, otherVerts);
transferBuffer.SetData(otherVerts, SetDataOptions.Overwrite);
cmdbuf.BeginCopyPass();
cmdbuf.UploadToBuffer(transferBuffer, vertexBuffer);
cmdbuf.EndCopyPass();
fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
GraphicsDevice.WaitForFences(fence);
GraphicsDevice.ReleaseFence(fence);
// Download the data
cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.BeginCopyPass();
cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer);
cmdbuf.EndCopyPass();
fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
GraphicsDevice.WaitForFences(fence);
GraphicsDevice.ReleaseFence(fence);
// Read the updated buffer
vertexBuffer.GetData(readbackVertices);
transferBuffer.GetData<PositionVertex>(readbackVertices);
Logger.LogInfo("=== Change first three vertices ===");
for (int i = 0; i < readbackVertices.Length; i += 1)
{
Logger.LogInfo(readbackVertices[i].ToString());
}
// Change the last two vertices
// Change the last two vertices and upload
cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.SetBufferData(
var lastTwoSpan = otherVerts.Slice(1, 2);
transferBuffer.SetData(lastTwoSpan, SetDataOptions.Overwrite);
cmdbuf.BeginCopyPass();
cmdbuf.UploadToBuffer(
transferBuffer,
vertexBuffer,
otherVerts,
(uint) (vertexSize * (vertices.Length - 2)),
1,
2
);
new BufferCopy(0, (uint) (vertexSize * (vertices.Length - 2)), (uint) (vertexSize * 2)));
cmdbuf.EndCopyPass();
fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
GraphicsDevice.WaitForFences(fence);
GraphicsDevice.ReleaseFence(fence);
cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.BeginCopyPass();
cmdbuf.DownloadFromBuffer(vertexBuffer, transferBuffer);
cmdbuf.EndCopyPass();
fence = GraphicsDevice.SubmitAndAcquireFence(cmdbuf);
GraphicsDevice.WaitForFences(fence);
GraphicsDevice.ReleaseFence(fence);
// Read the updated buffer
vertexBuffer.GetData(readbackVertices);
transferBuffer.GetData<PositionVertex>(readbackVertices);
Logger.LogInfo("=== Change last two vertices ===");
for (int i = 0; i < readbackVertices.Length; i += 1)
{
@ -89,7 +116,6 @@ namespace MoonWorks.Test
}
}
protected override void Update(System.TimeSpan delta) { }
protected override void Draw(double alpha)