/// <summary>
/// Creates the underlying native OpenGL texture with the specified format and data.
/// </summary>
private void CreateNativeTexture(UltravioletContext uv, UInt32 internalformat, Int32 width, Int32 height, Int32 depth,
UInt32 format, UInt32 type, void *pixels, Boolean immutable)
{
if (uv.IsRunningInServiceMode)
{
throw new NotSupportedException(UltravioletStrings.NotSupportedInServiceMode);
}
this.width = width;
this.height = height;
this.depth = depth;
this.internalformat = internalformat;
this.format = format;
this.type = type;
this.immutable = immutable;
this.srgbEncoded =
internalformat == gl.GL_SRGB ||
internalformat == gl.GL_SRGB_ALPHA ||
internalformat == gl.GL_SRGB8 ||
internalformat == gl.GL_SRGB8_ALPHA8;
this.texture = uv.QueueWorkItem(state =>
{
uint glname;
using (OpenGLState.ScopedCreateTexture3D(out glname))
{
if (gl.IsTextureMaxLevelSupported)
{
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAX_LEVEL, 0);
gl.ThrowIfError();
}
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MIN_FILTER, (int)gl.GL_LINEAR);
gl.ThrowIfError();
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_MAG_FILTER, (int)gl.GL_LINEAR);
gl.ThrowIfError();
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_WRAP_R, (int)gl.GL_CLAMP_TO_EDGE);
gl.ThrowIfError();
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_WRAP_S, (int)gl.GL_CLAMP_TO_EDGE);
gl.ThrowIfError();
gl.TextureParameteri(glname, gl.GL_TEXTURE_3D, gl.GL_TEXTURE_WRAP_T, (int)gl.GL_CLAMP_TO_EDGE);
gl.ThrowIfError();
if (immutable)
{
if (gl.IsTextureStorageAvailable)
{
gl.TextureStorage3D(glname, gl.GL_TEXTURE_3D, 1, internalformat, width, height, depth);
gl.ThrowIfError();
if (pixels != null)
{
gl.TextureSubImage3D(glname, gl.GL_TEXTURE_3D, 0, 0, 0, 0, width, height, depth, format, type, pixels);
gl.ThrowIfError();
}
}
else
{
gl.TextureImage3D(glname, gl.GL_TEXTURE_3D, 0, (int)internalformat, width, height, depth, 0, format, type, pixels);
gl.ThrowIfError();
}
}
}
if (!immutable)
{
using (OpenGLState.ScopedBindTexture3D(glname, true))
{
gl.TexImage3D(gl.GL_TEXTURE_3D, 0, (int)internalformat, width, height, depth, 0, format, type, pixels);
gl.ThrowIfError();
}
}
return(glname);
}).Result;
}