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using OpenTK.Graphics.OpenGL;
using Ryujinx.Graphics.Texture;
using System;
namespace Ryujinx.Graphics.Gal.OpenGL
{
class OGLTexture : IGalTexture
{
private const long MaxTextureCacheSize = 768 * 1024 * 1024;
private OGLCachedResource<ImageHandler> TextureCache;
public EventHandler<int> TextureDeleted { get; set; }
public OGLTexture()
{
TextureCache = new OGLCachedResource<ImageHandler>(DeleteTexture, MaxTextureCacheSize);
}
public void LockCache()
{
TextureCache.Lock();
}
public void UnlockCache()
{
TextureCache.Unlock();
}
private void DeleteTexture(ImageHandler CachedImage)
{
TextureDeleted?.Invoke(this, CachedImage.Handle);
GL.DeleteTexture(CachedImage.Handle);
}
public void Create(long Key, int Size, GalImage Image)
{
int Handle = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, Handle);
const int Level = 0; //TODO: Support mipmap textures.
const int Border = 0;
TextureCache.AddOrUpdate(Key, new ImageHandler(Handle, Image), (uint)Size);
if (ImageUtils.IsCompressed(Image.Format))
{
throw new InvalidOperationException("Surfaces with compressed formats are not supported!");
}
(PixelInternalFormat InternalFmt,
PixelFormat Format,
PixelType Type) = OGLEnumConverter.GetImageFormat(Image.Format);
GL.TexImage2D(
TextureTarget.Texture2D,
Level,
InternalFmt,
Image.Width,
Image.Height,
Border,
Format,
Type,
IntPtr.Zero);
}
public void Create(long Key, byte[] Data, GalImage Image)
{
int Handle = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, Handle);
const int Level = 0; //TODO: Support mipmap textures.
const int Border = 0;
TextureCache.AddOrUpdate(Key, new ImageHandler(Handle, Image), (uint)Data.Length);
if (ImageUtils.IsCompressed(Image.Format) && !IsAstc(Image.Format))
{
InternalFormat InternalFmt = OGLEnumConverter.GetCompressedImageFormat(Image.Format);
GL.CompressedTexImage2D(
TextureTarget.Texture2D,
Level,
InternalFmt,
Image.Width,
Image.Height,
Border,
Data.Length,
Data);
}
else
{
//TODO: Use KHR_texture_compression_astc_hdr when available
if (IsAstc(Image.Format))
{
int TextureBlockWidth = ImageUtils.GetBlockWidth(Image.Format);
int TextureBlockHeight = ImageUtils.GetBlockHeight(Image.Format);
Data = ASTCDecoder.DecodeToRGBA8888(
Data,
TextureBlockWidth,
TextureBlockHeight, 1,
Image.Width,
Image.Height, 1);
Image.Format = GalImageFormat.RGBA8 | (Image.Format & GalImageFormat.TypeMask);
}
(PixelInternalFormat InternalFmt,
PixelFormat Format,
PixelType Type) = OGLEnumConverter.GetImageFormat(Image.Format);
GL.TexImage2D(
TextureTarget.Texture2D,
Level,
InternalFmt,
Image.Width,
Image.Height,
Border,
Format,
Type,
Data);
}
}
private static bool IsAstc(GalImageFormat Format)
{
Format &= GalImageFormat.FormatMask;
return Format > GalImageFormat.Astc2DStart && Format < GalImageFormat.Astc2DEnd;
}
public bool TryGetImage(long Key, out GalImage Image)
{
if (TextureCache.TryGetValue(Key, out ImageHandler CachedImage))
{
Image = CachedImage.Image;
return true;
}
Image = default(GalImage);
return false;
}
public bool TryGetImageHandler(long Key, out ImageHandler CachedImage)
{
if (TextureCache.TryGetValue(Key, out CachedImage))
{
return true;
}
CachedImage = null;
return false;
}
public void Bind(long Key, int Index, GalImage Image)
{
if (TextureCache.TryGetValue(Key, out ImageHandler CachedImage))
{
GL.ActiveTexture(TextureUnit.Texture0 + Index);
GL.BindTexture(TextureTarget.Texture2D, CachedImage.Handle);
int[] SwizzleRgba = new int[]
{
(int)OGLEnumConverter.GetTextureSwizzle(Image.XSource),
(int)OGLEnumConverter.GetTextureSwizzle(Image.YSource),
(int)OGLEnumConverter.GetTextureSwizzle(Image.ZSource),
(int)OGLEnumConverter.GetTextureSwizzle(Image.WSource)
};
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureSwizzleRgba, SwizzleRgba);
}
}
public void SetSampler(GalTextureSampler Sampler)
{
int WrapS = (int)OGLEnumConverter.GetTextureWrapMode(Sampler.AddressU);
int WrapT = (int)OGLEnumConverter.GetTextureWrapMode(Sampler.AddressV);
int MinFilter = (int)OGLEnumConverter.GetTextureMinFilter(Sampler.MinFilter, Sampler.MipFilter);
int MagFilter = (int)OGLEnumConverter.GetTextureMagFilter(Sampler.MagFilter);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, WrapS);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, WrapT);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, MinFilter);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, MagFilter);
float[] Color = new float[]
{
Sampler.BorderColor.Red,
Sampler.BorderColor.Green,
Sampler.BorderColor.Blue,
Sampler.BorderColor.Alpha
};
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBorderColor, Color);
}
}
}
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