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port from perforce

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This commit is contained in:
Frank Tovar
2026-04-18 22:31:51 +02:00
commit 8d0ab5b7cc
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aiwaz/Aiwaz.Resources/Texture.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Aiwaz.Contracts;
using Aiwaz.Core;
using SlimDX.Direct3D10;
using Aiwaz.Resources.Attributes;
namespace Aiwaz.Resources
{
[CreationParameters("Create an empty texture")]
public class EmptyTextureParams : ICreationParams
{
public int Width;
public int Height;
public int Elements;
public int MipLevels;
public SlimDX.DXGI.Format Format;
public ResourceUsage AccessType;
public TextureInitialData InitialData;
public bool RenderTarget;
public int MultiSampleCount;
public int MultiSampleQuality;
public EmptyTextureParams()
{
Width = 512;
Height = 512;
Elements = 1;
MipLevels = 1;
Format = SlimDX.DXGI.Format.Unknown;
AccessType = ResourceUsage.Default;
InitialData = null;
RenderTarget = false;
MultiSampleCount = 0;
MultiSampleQuality = 0;
}
}
[CreationParameters("Load a texture from file")]
public class FileTextureParams : ICreationParams
{
[RequiredParameter]
public string FileName;
public SlimDX.Direct3D10.ResourceUsage AccessType;
public FileTextureParams()
{
AccessType = ResourceUsage.Default;
}
}
[AiwazResource("Texture", "A placeholder of multidimensional data")]
public class Texture : ShaderParameterSet, ITexture
{
#region ITexture Members
private string bindingName = "Diffuse";
private SlimDX.Direct3D10.Resource resource;
private int lockedSubResource = 0;
private bool isLocked = false;
private ResourceUsage accessType;
private Texture()
: base(3)
{
}
public Texture(FileTextureParams descriptor)
: this()
{
Console.WriteLine(string.Format("Creating Texture ({0})..", descriptor.FileName));
this.LoadFromFile(descriptor.FileName, descriptor.AccessType);
this.WellKnownName = descriptor.FileName;
}
public Texture(EmptyTextureParams descriptor)
: this()
{
this.CreateTexture(descriptor.Width, descriptor.Height, descriptor.MipLevels, descriptor.Elements, descriptor.Format, descriptor.InitialData, descriptor.AccessType, descriptor.RenderTarget, descriptor.MultiSampleCount, descriptor.MultiSampleQuality);
}
public string BindingName
{
get { return bindingName; }
set
{
if (!string.IsNullOrEmpty(bindingName))
this.RemoveParameter(bindingName);
bindingName = value;;
if (!string.IsNullOrEmpty(bindingName))
this.SetParameter(bindingName, this, ParameterBindType.BindBySemantic);
}
}
public int TextureWidth { get; protected set; }
public int TextureHeight { get; protected set; }
public int TextureArraySize { get; protected set; }
public SlimDX.DXGI.Format TextureFormat { get; protected set; }
public SlimDX.Direct3D10.ShaderResourceView ResourceView { get; protected set; }
public SlimDX.Direct3D10.Texture2D Texture2D { get; protected set; }
public SlimDX.DataRectangle MapTextureBuffer(SlimDX.Direct3D10.MapMode mode)
{
return this.MapTextureBuffer(mode, 0);
}
public SlimDX.DataRectangle MapTextureBuffer(SlimDX.Direct3D10.MapMode mode, int arrayElement)
{
if (isLocked)
throw new ActionFailedException("Texture is already locked.");
isLocked = true;
lockedSubResource = arrayElement;
return this.Texture2D.Map(arrayElement, mode, SlimDX.Direct3D10.MapFlags.None);
}
public void UnmapTextureBuffer()
{
if (!isLocked)
return;
isLocked = false;
this.Texture2D.Unmap(lockedSubResource);
}
private void LoadFromFile(string fileName, SlimDX.Direct3D10.ResourceUsage accessType)
{
this.accessType = accessType;
Engine.FileSystem.Attach(fileName, OnFileChanged);
this.TextureArraySize = 0;
}
private void OnFileChanged(System.IO.Stream stream)
{
if (this.Texture2D != null)
this.Texture2D.Dispose();
if (this.ResourceView != null)
this.ResourceView.Dispose();
var loadInfo = SlimDX.Direct3D10.ImageLoadInformation.FromDefaults();
if (accessType == SlimDX.Direct3D10.ResourceUsage.Staging)
{
loadInfo.BindFlags = 0;
loadInfo.Usage = SlimDX.Direct3D10.ResourceUsage.Staging;
loadInfo.CpuAccessFlags = SlimDX.Direct3D10.CpuAccessFlags.Write | SlimDX.Direct3D10.CpuAccessFlags.Read;
}
else if (accessType == SlimDX.Direct3D10.ResourceUsage.Dynamic)
{
loadInfo.Usage = SlimDX.Direct3D10.ResourceUsage.Dynamic;
loadInfo.CpuAccessFlags = SlimDX.Direct3D10.CpuAccessFlags.Write;
}
using (stream)
{
this.Texture2D = SlimDX.Direct3D10.Texture2D.FromStream(Engine.Device, stream, (int)stream.Length, loadInfo);
resource = this.Texture2D;
}
if (accessType != SlimDX.Direct3D10.ResourceUsage.Staging)
{
var texViewDesc = new SlimDX.Direct3D10.ShaderResourceViewDescription();
texViewDesc.Format = this.Texture2D.Description.Format;
texViewDesc.Dimension = SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2D;
texViewDesc.MostDetailedMip = 0;
texViewDesc.MipLevels = this.Texture2D.Description.MipLevels;
this.ResourceView = new SlimDX.Direct3D10.ShaderResourceView(Engine.Device, this.Texture2D, texViewDesc);
}
this.TextureWidth = this.Texture2D.Description.Width;
this.TextureHeight = this.Texture2D.Description.Height;
this.TextureFormat = this.Texture2D.Description.Format;
}
internal void CreateRenderTargetTexture(int width, int height, SlimDX.DXGI.Format format, int multiSampleCount, int multiSampleQuality)
{
this.CreateTexture(width, height, 1, 0, format, null, SlimDX.Direct3D10.ResourceUsage.Staging, true, multiSampleCount, multiSampleQuality);
}
private void DisposeInternal()
{
if (this.ResourceView != null)
this.ResourceView.Dispose();
this.ResourceView = null;
if (this.resource != null)
this.resource.Dispose();
this.resource = null;
this.Texture2D = null;
}
private void CreateTexture(int width, int height, int mipLevels, int elements, SlimDX.DXGI.Format format, TextureInitialData initialData, SlimDX.Direct3D10.ResourceUsage accessType, bool renderTarget, int multiSampleCount, int multiSampleQuality)
{
Console.WriteLine(string.Format("Creating Texture ({0}x{1} {2})..", width, height, format.ToString()));
this.DisposeInternal();
// calculate the needed amount of mipmap levels
int mipMapLevels = 1;
for (int tmp = Math.Min(height, width); tmp > 1; tmp /= 2, ++mipMapLevels);
mipMapLevels = Math.Max(1, Math.Min(mipMapLevels, mipLevels == 0 ? mipMapLevels : mipLevels));
// create the resource
var texDesc = new SlimDX.Direct3D10.Texture2DDescription();
texDesc.Width = width;
texDesc.Height = height;
texDesc.MipLevels = mipMapLevels;
texDesc.ArraySize = Math.Max(1, elements);
texDesc.Format = format;
texDesc.SampleDescription = new SlimDX.DXGI.SampleDescription(multiSampleCount, multiSampleQuality);
if (accessType == SlimDX.Direct3D10.ResourceUsage.Dynamic)
{
texDesc.Usage = SlimDX.Direct3D10.ResourceUsage.Dynamic;
texDesc.CpuAccessFlags = SlimDX.Direct3D10.CpuAccessFlags.Write;
}
if (accessType == SlimDX.Direct3D10.ResourceUsage.Staging)
texDesc.BindFlags = ((mipMapLevels > 1 || renderTarget) ? SlimDX.Direct3D10.BindFlags.RenderTarget : SlimDX.Direct3D10.BindFlags.None) | SlimDX.Direct3D10.BindFlags.ShaderResource;
if (mipMapLevels > 1)
texDesc.OptionFlags = SlimDX.Direct3D10.ResourceOptionFlags.GenerateMipMaps;
resource = this.Texture2D = new SlimDX.Direct3D10.Texture2D(Engine.Device, texDesc);
// create the resource view when possible
if (accessType != SlimDX.Direct3D10.ResourceUsage.Staging)
{
var texViewDesc = new SlimDX.Direct3D10.ShaderResourceViewDescription();
texViewDesc.Format = texDesc.Format;
texViewDesc.ElementWidth = elements;
if (elements > 0)
texViewDesc.Dimension = multiSampleCount == 1 ? SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2DArray : SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2DMultisampledArray;
else
texViewDesc.Dimension = multiSampleCount == 1 ? SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2D : SlimDX.Direct3D10.ShaderResourceViewDimension.Texture2DMultisampled;
texViewDesc.MostDetailedMip = 0;
texViewDesc.MipLevels = texDesc.MipLevels;
texViewDesc.ArraySize = elements;
this.ResourceView = new SlimDX.Direct3D10.ShaderResourceView(Engine.Device, resource, texViewDesc);
}
// finalize
this.TextureWidth = width;
this.TextureHeight = height;
this.TextureFormat = format;
this.TextureArraySize = 1;
this.BindingName = this.BindingName;
}
#region IDisposable Members
public override void Dispose()
{
this.DisposeInternal();
base.Dispose();
}
#endregion
#endregion
}
}