Ryujinx/Ryujinx.Graphics.OpenGL/Image/TextureStorage.cs

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using OpenTK.Graphics.OpenGL;
using Ryujinx.Common.Logging;
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using Ryujinx.Graphics.GAL;
using System;
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namespace Ryujinx.Graphics.OpenGL.Image
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{
class TextureStorage
{
public int Handle { get; private set; }
public float ScaleFactor { get; private set; }
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public TextureCreateInfo Info { get; }
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private readonly Renderer _renderer;
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private int _viewsCount;
public TextureStorage(Renderer renderer, TextureCreateInfo info, float scaleFactor)
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{
_renderer = renderer;
Info = info;
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Handle = GL.GenTexture();
ScaleFactor = scaleFactor;
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CreateImmutableStorage();
}
private void CreateImmutableStorage()
{
TextureTarget target = Info.Target.Convert();
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GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(target, Handle);
int width = (int)Math.Ceiling(Info.Width * ScaleFactor);
int height = (int)Math.Ceiling(Info.Height * ScaleFactor);
FormatInfo format = FormatTable.GetFormatInfo(Info.Format);
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SizedInternalFormat internalFormat;
if (format.IsCompressed)
{
internalFormat = (SizedInternalFormat)format.PixelFormat;
}
else
{
internalFormat = (SizedInternalFormat)format.PixelInternalFormat;
}
switch (Info.Target)
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{
case Target.Texture1D:
GL.TexStorage1D(
TextureTarget1d.Texture1D,
Info.Levels,
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internalFormat,
width);
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break;
case Target.Texture1DArray:
GL.TexStorage2D(
TextureTarget2d.Texture1DArray,
Info.Levels,
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internalFormat,
width,
height);
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break;
case Target.Texture2D:
GL.TexStorage2D(
TextureTarget2d.Texture2D,
Info.Levels,
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internalFormat,
width,
height);
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break;
case Target.Texture2DArray:
GL.TexStorage3D(
TextureTarget3d.Texture2DArray,
Info.Levels,
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internalFormat,
width,
height,
Info.Depth);
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break;
case Target.Texture2DMultisample:
GL.TexStorage2DMultisample(
TextureTargetMultisample2d.Texture2DMultisample,
Info.Samples,
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internalFormat,
width,
height,
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true);
break;
case Target.Texture2DMultisampleArray:
GL.TexStorage3DMultisample(
TextureTargetMultisample3d.Texture2DMultisampleArray,
Info.Samples,
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internalFormat,
width,
height,
Info.Depth,
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true);
break;
case Target.Texture3D:
GL.TexStorage3D(
TextureTarget3d.Texture3D,
Info.Levels,
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internalFormat,
width,
height,
Info.Depth);
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break;
case Target.Cubemap:
GL.TexStorage2D(
TextureTarget2d.TextureCubeMap,
Info.Levels,
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internalFormat,
width,
height);
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break;
case Target.CubemapArray:
GL.TexStorage3D(
(TextureTarget3d)All.TextureCubeMapArray,
Info.Levels,
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internalFormat,
width,
height,
Info.Depth);
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break;
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default:
Logger.PrintDebug(LogClass.Gpu, $"Invalid or unsupported texture target: {target}.");
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break;
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}
}
public ITexture CreateDefaultView()
{
return CreateView(Info, 0, 0);
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}
public ITexture CreateView(TextureCreateInfo info, int firstLayer, int firstLevel)
{
IncrementViewsCount();
return new TextureView(_renderer, this, info, firstLayer, firstLevel);
}
private void IncrementViewsCount()
{
_viewsCount++;
}
public void DecrementViewsCount()
{
// If we don't have any views, then the storage is now useless, delete it.
if (--_viewsCount == 0)
{
Dispose();
}
}
public void Dispose()
{
if (Handle != 0)
{
GL.DeleteTexture(Handle);
Handle = 0;
}
}
}
}