private SamplerState(GraphicsDevice device, SamplerStateDescription samplerStateDescription) : base(device)
{
Description = samplerStateDescription;
textureWrapS = samplerStateDescription.AddressU.ToOpenGL();
textureWrapT = samplerStateDescription.AddressV.ToOpenGL();
textureWrapR = samplerStateDescription.AddressW.ToOpenGL();
compareMode = TextureCompareMode.None;
// ComparisonPoint can act as a mask for Comparison filters (0x80)
if ((samplerStateDescription.Filter & ComparisonMask) != 0)
{
compareMode = TextureCompareMode.CompareRefToTexture;
}
compareFunc = samplerStateDescription.CompareFunction.ToOpenGLDepthFunction();
borderColor = samplerStateDescription.BorderColor.ToArray();
// TODO: How to do MipLinear vs MipPoint?
switch (samplerStateDescription.Filter & ~(ComparisonMask | AnisotropicMask)) // Ignore comparison (128) and anisotropic (64) part
{
case TextureFilter.MinMagLinearMipPoint:
minFilter = TextureMinFilter.LinearMipmapNearest;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.Linear:
minFilter = TextureMinFilter.LinearMipmapLinear;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.MinPointMagMipLinear:
minFilter = TextureMinFilter.NearestMipmapLinear;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.Point:
minFilter = TextureMinFilter.NearestMipmapNearest;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinPointMagLinearMipPoint:
minFilter = TextureMinFilter.NearestMipmapNearest;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.MinLinearMagMipPoint:
minFilter = TextureMinFilter.LinearMipmapNearest;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinMagPointMipLinear:
minFilter = TextureMinFilter.NearestMipmapLinear;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinLinearMagPointMipLinear:
minFilter = TextureMinFilter.LinearMipmapLinear;
magFilter = TextureMagFilter.Nearest;
break;
default:
throw new NotImplementedException();
}
maxAnisotropy = ((samplerStateDescription.Filter & AnisotropicMask) != 0) ? Description.MaxAnisotropy : 1;
#if STRIDE_GRAPHICS_API_OPENGLES
// On OpenGL ES, we need to choose the appropriate min filter ourself if the texture doesn't contain mipmaps (done at PreDraw)
minFilterNoMipmap = minFilter;
if (minFilterNoMipmap == TextureMinFilter.LinearMipmapLinear)
{
minFilterNoMipmap = TextureMinFilter.Linear;
}
else if (minFilterNoMipmap == TextureMinFilter.NearestMipmapLinear)
{
minFilterNoMipmap = TextureMinFilter.Nearest;
}
#endif
}
private SamplerState(GraphicsDevice device, SamplerStateDescription samplerStateDescription) : base(device)
{
Description = samplerStateDescription;
textureWrapS = samplerStateDescription.AddressU.ToOpenGL();
textureWrapT = samplerStateDescription.AddressV.ToOpenGL();
textureWrapR = samplerStateDescription.AddressW.ToOpenGL();
compareMode = TextureCompareMode.None;
// ComparisonPoint can act as a mask for Comparison filters (0x80)
if ((samplerStateDescription.Filter & ComparisonMask) != 0)
compareMode = TextureCompareMode.CompareRefToTexture;
compareFunc = samplerStateDescription.CompareFunction.ToOpenGLDepthFunction();
borderColor = samplerStateDescription.BorderColor.ToArray();
// TODO: How to do MipLinear vs MipPoint?
switch (samplerStateDescription.Filter & ~(ComparisonMask | AnisotropicMask)) // Ignore comparison (128) and anisotropic (64) part
{
case TextureFilter.MinMagLinearMipPoint:
minFilter = TextureMinFilter.LinearMipmapNearest;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.Linear:
minFilter = TextureMinFilter.LinearMipmapLinear;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.MinPointMagMipLinear:
minFilter = TextureMinFilter.NearestMipmapLinear;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.Point:
minFilter = TextureMinFilter.NearestMipmapNearest;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinPointMagLinearMipPoint:
minFilter = TextureMinFilter.NearestMipmapNearest;
magFilter = TextureMagFilter.Linear;
break;
case TextureFilter.MinLinearMagMipPoint:
minFilter = TextureMinFilter.LinearMipmapNearest;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinMagPointMipLinear:
minFilter = TextureMinFilter.NearestMipmapLinear;
magFilter = TextureMagFilter.Nearest;
break;
case TextureFilter.MinLinearMagPointMipLinear:
minFilter = TextureMinFilter.LinearMipmapLinear;
magFilter = TextureMagFilter.Nearest;
break;
default:
throw new NotImplementedException();
}
maxAnisotropy = ((samplerStateDescription.Filter & AnisotropicMask) != 0) ? Description.MaxAnisotropy : 1;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// On OpenGL ES, we need to choose the appropriate min filter ourself if the texture doesn't contain mipmaps (done at PreDraw)
minFilterNoMipmap = minFilter;
if (minFilterNoMipmap == TextureMinFilter.LinearMipmapLinear)
minFilterNoMipmap = TextureMinFilter.Linear;
else if (minFilterNoMipmap == TextureMinFilter.NearestMipmapLinear)
minFilterNoMipmap = TextureMinFilter.Nearest;
#endif
}
