private void CreateImmutableStorage()
{
TextureTarget target = _info.Target.Convert();
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(target, Handle);
FormatInfo format = FormatTable.GetFormatInfo(_info.Format);
SizedInternalFormat internalFormat;
if (format.IsCompressed)
{
internalFormat = (SizedInternalFormat)format.PixelFormat;
}
else
{
internalFormat = (SizedInternalFormat)format.PixelInternalFormat;
}
switch (_info.Target)
{
case Target.Texture1D:
GL.TexStorage1D(
TextureTarget1d.Texture1D,
_info.Levels,
internalFormat,
_info.Width);
break;
case Target.Texture1DArray:
GL.TexStorage2D(
TextureTarget2d.Texture1DArray,
_info.Levels,
internalFormat,
_info.Width,
_info.Height);
break;
case Target.Texture2D:
GL.TexStorage2D(
TextureTarget2d.Texture2D,
_info.Levels,
internalFormat,
_info.Width,
_info.Height);
break;
case Target.Texture2DArray:
GL.TexStorage3D(
TextureTarget3d.Texture2DArray,
_info.Levels,
internalFormat,
_info.Width,
_info.Height,
_info.Depth);
break;
case Target.Texture2DMultisample:
GL.TexStorage2DMultisample(
TextureTargetMultisample2d.Texture2DMultisample,
_info.Samples,
internalFormat,
_info.Width,
_info.Height,
true);
break;
case Target.Texture2DMultisampleArray:
GL.TexStorage3DMultisample(
TextureTargetMultisample3d.Texture2DMultisampleArray,
_info.Samples,
internalFormat,
_info.Width,
_info.Height,
_info.Depth,
true);
break;
case Target.Texture3D:
GL.TexStorage3D(
TextureTarget3d.Texture3D,
_info.Levels,
internalFormat,
_info.Width,
_info.Height,
_info.Depth);
break;
case Target.Cubemap:
GL.TexStorage2D(
TextureTarget2d.TextureCubeMap,
_info.Levels,
internalFormat,
_info.Width,
_info.Height);
break;
case Target.CubemapArray:
GL.TexStorage3D(
(TextureTarget3d)All.TextureCubeMapArray,
_info.Levels,
internalFormat,
_info.Width,
_info.Height,
_info.Depth);
break;
default:
Logger.PrintDebug(LogClass.Gpu, $"Invalid or unsupported texture target: {target}.");
break;
}
}
private static void Add(Format format, FormatInfo info)
{
Table[(int)format] = info;
}
private void SetData(IntPtr data, int size)
{
TextureTarget target = Target.Convert();
Bind(target, 0);
FormatInfo format = FormatTable.GetFormatInfo(Info.Format);
int width = Info.Width;
int height = Info.Height;
int depth = Info.Depth;
int offset = 0;
for (int level = 0; level < Info.Levels; level++)
{
int mipSize = Info.GetMipSize(level);
int endOffset = offset + mipSize;
if ((uint)endOffset > (uint)size)
{
return;
}
switch (Info.Target)
{
case Target.Texture1D:
if (format.IsCompressed)
{
GL.CompressedTexSubImage1D(
target,
level,
0,
width,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage1D(
target,
level,
0,
width,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Texture1DArray:
case Target.Texture2D:
if (format.IsCompressed)
{
GL.CompressedTexSubImage2D(
target,
level,
0,
0,
width,
height,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage2D(
target,
level,
0,
0,
width,
height,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Texture2DArray:
case Target.Texture3D:
case Target.CubemapArray:
if (format.IsCompressed)
{
GL.CompressedTexSubImage3D(
target,
level,
0,
0,
0,
width,
height,
depth,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage3D(
target,
level,
0,
0,
0,
width,
height,
depth,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Cubemap:
int faceOffset = 0;
for (int face = 0; face < 6; face++, faceOffset += mipSize / 6)
{
if (format.IsCompressed)
{
GL.CompressedTexSubImage2D(
TextureTarget.TextureCubeMapPositiveX + face,
level,
0,
0,
width,
height,
format.PixelFormat,
mipSize / 6,
data + faceOffset);
}
else
{
GL.TexSubImage2D(
TextureTarget.TextureCubeMapPositiveX + face,
level,
0,
0,
width,
height,
format.PixelFormat,
format.PixelType,
data + faceOffset);
}
}
break;
}
data += mipSize;
offset += mipSize;
width = Math.Max(1, width >> 1);
height = Math.Max(1, height >> 1);
if (Target == Target.Texture3D)
{
depth = Math.Max(1, depth >> 1);
}
}
}