internal static void GetGLFormat(this SurfaceFormat format,
GraphicsDevice graphicsDevice,
out PixelInternalFormat glInternalFormat,
out PixelFormat glFormat,
out PixelType glType)
{
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
var supportsSRgb = graphicsDevice.GraphicsCapabilities.SupportsSRgb;
var supportsS3tc = graphicsDevice.GraphicsCapabilities.SupportsS3tc;
var supportsPvrtc = graphicsDevice.GraphicsCapabilities.SupportsPvrtc;
var supportsEtc1 = graphicsDevice.GraphicsCapabilities.SupportsEtc1;
var supportsAtitc = graphicsDevice.GraphicsCapabilities.SupportsAtitc;
var supportsFloat = graphicsDevice.GraphicsCapabilities.SupportsFloatTextures;
var supportsHalfFloat = graphicsDevice.GraphicsCapabilities.SupportsHalfFloatTextures;
var supportsNormalized = graphicsDevice.GraphicsCapabilities.SupportsNormalized;
var isGLES2 = GL.BoundApi == GL.RenderApi.ES && graphicsDevice.glMajorVersion == 2;
switch (format)
{
case SurfaceFormat.Color:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.ColorSRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Color;
}
glInternalFormat = PixelInternalFormat.Srgb;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Bgr565:
glInternalFormat = PixelInternalFormat.Rgb;
glFormat = PixelFormat.Rgb;
glType = PixelType.UnsignedShort565;
break;
case SurfaceFormat.Bgra4444:
#if IOS || ANDROID
glInternalFormat = PixelInternalFormat.Rgba;
#else
glInternalFormat = PixelInternalFormat.Rgba4;
#endif
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort4444;
break;
case SurfaceFormat.Bgra5551:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort5551;
break;
case SurfaceFormat.Alpha8:
glInternalFormat = PixelInternalFormat.Luminance;
glFormat = PixelFormat.Luminance;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Dxt1:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt1;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1a:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt3;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt5;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
#if !IOS && !ANDROID && !ANGLE
case SurfaceFormat.Rgba1010102:
glInternalFormat = PixelInternalFormat.Rgb10A2ui;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedInt1010102;
break;
#endif
case SurfaceFormat.Single:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.R32f;
glFormat = PixelFormat.Red;
glType = PixelType.Float;
break;
case SurfaceFormat.HalfVector2:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg16f;
glFormat = PixelFormat.Rg;
glType = PixelType.HalfFloat;
break;
// HdrBlendable implemented as HalfVector4 (see http://blogs.msdn.com/b/shawnhar/archive/2010/07/09/surfaceformat-hdrblendable.aspx)
case SurfaceFormat.HdrBlendable:
case SurfaceFormat.HalfVector4:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba16f;
glFormat = PixelFormat.Rgba;
glType = PixelType.HalfFloat;
break;
case SurfaceFormat.HalfSingle:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.R16f;
glFormat = PixelFormat.Red;
glType = isGLES2 ? PixelType.HalfFloatOES : PixelType.HalfFloat;
break;
case SurfaceFormat.Vector2:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg32f;
glFormat = PixelFormat.Rg;
glType = PixelType.Float;
break;
case SurfaceFormat.Vector4:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba32f;
glFormat = PixelFormat.Rgba;
glType = PixelType.Float;
break;
case SurfaceFormat.NormalizedByte2:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg8i;
glFormat = PixelFormat.Rg;
glType = PixelType.Byte;
break;
case SurfaceFormat.NormalizedByte4:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba8i;
glFormat = PixelFormat.Rgba;
glType = PixelType.Byte;
break;
case SurfaceFormat.Rg32:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg16ui;
glFormat = PixelFormat.Rg;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.Rgba64:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba16;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.RgbaAtcExplicitAlpha:
if (!supportsAtitc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.AtcRgbaExplicitAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaAtcInterpolatedAlpha:
if (!supportsAtitc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.AtcRgbaInterpolatedAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbEtc1:
if (!supportsEtc1)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc1; // GL_ETC1_RGB8_OES
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbPvrtc2Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbPvrtc4Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc2Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc4Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case InvalidFormat:
default:
throw new NotSupportedException(string.Format("The requested SurfaceFormat `{0}` is not supported.", format));
}
}
internal static void GetGLFormat(this SurfaceFormat format,
GraphicsDevice graphicsDevice,
out PixelInternalFormat glInternalFormat,
out PixelFormat glFormat,
out PixelType glType)
{
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
var supportsSRgb = graphicsDevice.GraphicsCapabilities.SupportsSRgb;
switch (format)
{
case SurfaceFormat.Color:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.ColorSRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Color;
}
glInternalFormat = (PixelInternalFormat)0x8C40; // PixelInternalFormat.Srgb;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Bgr565:
glInternalFormat = PixelInternalFormat.Rgb;
glFormat = PixelFormat.Rgb;
glType = PixelType.UnsignedShort565;
break;
case SurfaceFormat.Bgra4444:
#if IOS || ANDROID
glInternalFormat = PixelInternalFormat.Rgba;
#else
glInternalFormat = PixelInternalFormat.Rgba4;
#endif
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort4444;
break;
case SurfaceFormat.Bgra5551:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort5551;
break;
case SurfaceFormat.Alpha8:
glInternalFormat = PixelInternalFormat.Luminance;
glFormat = PixelFormat.Luminance;
glType = PixelType.UnsignedByte;
break;
#if !IOS && !ANDROID && !ANGLE
case SurfaceFormat.Dxt1:
glInternalFormat = PixelInternalFormat.CompressedRgbS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt1;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1a:
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3:
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt3;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5:
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt5;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
glFormat = (PixelFormat)GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Single:
glInternalFormat = PixelInternalFormat.R32f;
glFormat = PixelFormat.Red;
glType = PixelType.Float;
break;
case SurfaceFormat.HalfVector2:
glInternalFormat = PixelInternalFormat.Rg16f;
glFormat = PixelFormat.Rg;
glType = PixelType.HalfFloat;
break;
// HdrBlendable implemented as HalfVector4 (see http://blogs.msdn.com/b/shawnhar/archive/2010/07/09/surfaceformat-hdrblendable.aspx)
case SurfaceFormat.HdrBlendable:
case SurfaceFormat.HalfVector4:
glInternalFormat = PixelInternalFormat.Rgba16f;
glFormat = PixelFormat.Rgba;
glType = PixelType.HalfFloat;
break;
case SurfaceFormat.HalfSingle:
glInternalFormat = PixelInternalFormat.R16f;
glFormat = PixelFormat.Red;
glType = PixelType.HalfFloat;
break;
case SurfaceFormat.Vector2:
glInternalFormat = PixelInternalFormat.Rg32f;
glFormat = PixelFormat.Rg;
glType = PixelType.Float;
break;
case SurfaceFormat.Vector4:
glInternalFormat = PixelInternalFormat.Rgba32f;
glFormat = PixelFormat.Rgba;
glType = PixelType.Float;
break;
case SurfaceFormat.NormalizedByte2:
glInternalFormat = PixelInternalFormat.Rg8i;
glFormat = PixelFormat.Rg;
glType = PixelType.Byte;
break;
case SurfaceFormat.NormalizedByte4:
glInternalFormat = PixelInternalFormat.Rgba8i;
glFormat = PixelFormat.Rgba;
glType = PixelType.Byte;
break;
case SurfaceFormat.Rg32:
glInternalFormat = PixelInternalFormat.Rg16ui;
glFormat = PixelFormat.Rg;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.Rgba64:
glInternalFormat = PixelInternalFormat.Rgba16;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.Rgba1010102:
glInternalFormat = PixelInternalFormat.Rgb10A2ui;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedInt1010102;
break;
#endif
#if ANDROID
case SurfaceFormat.Dxt1:
// 0x83F0 is the RGB version, 0x83F1 is the RGBA version (1-bit alpha)
// XNA uses the RGB version.
glInternalFormat = (PixelInternalFormat)0x83F0;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt1;
}
glInternalFormat = (PixelInternalFormat)0x8C4C;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1a:
// 0x83F0 is the RGB version, 0x83F1 is the RGBA version (1-bit alpha)
glInternalFormat = (PixelInternalFormat)0x83F1;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3:
glInternalFormat = (PixelInternalFormat)0x83F2;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt3;
}
glInternalFormat = (PixelInternalFormat)0x8C4E;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5:
glInternalFormat = (PixelInternalFormat)0x83F3;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt5;
}
glInternalFormat = (PixelInternalFormat)0x8C4F;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaAtcExplicitAlpha:
glInternalFormat = PixelInternalFormat.AtcRgbaExplicitAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaAtcInterpolatedAlpha:
glInternalFormat = PixelInternalFormat.AtcRgbaInterpolatedAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbEtc1:
glInternalFormat = (PixelInternalFormat)0x8D64; // GL_ETC1_RGB8_OES
glFormat = PixelFormat.CompressedTextureFormats;
break;
#endif
#if IOS || ANDROID
case SurfaceFormat.RgbPvrtc2Bpp:
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbPvrtc4Bpp:
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc2Bpp:
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc4Bpp:
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
#endif
default:
throw new NotSupportedException();
}
}
internal static void GetGLFormat(
this SurfaceFormat format,
GraphicsDevice graphicsDevice,
out PixelInternalFormat glInternalFormat,
out PixelFormat glFormat,
out PixelType glType)
{
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
bool supportsSRgb = graphicsDevice.Capabilities.SupportsSRgb;
bool supportsS3tc = graphicsDevice.Capabilities.SupportsS3tc;
bool supportsPvrtc = graphicsDevice.Capabilities.SupportsPvrtc;
bool supportsEtc1 = graphicsDevice.Capabilities.SupportsEtc1;
bool supportsEtc2 = graphicsDevice.Capabilities.SupportsEtc2;
bool supportsAtitc = graphicsDevice.Capabilities.SupportsAtitc;
bool supportsFloat = graphicsDevice.Capabilities.SupportsFloatTextures;
bool supportsHalfFloat = graphicsDevice.Capabilities.SupportsHalfFloatTextures;
bool supportsNormalized = graphicsDevice.Capabilities.SupportsNormalized;
bool isGLES2 = GL.IsES && graphicsDevice._glMajorVersion == 2;
switch (format)
{
case SurfaceFormat.Rgb24:
glInternalFormat = PixelInternalFormat.Rgb;
glFormat = PixelFormat.Rgb;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Rgba32:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Rgba32SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Rgba32;
}
glInternalFormat = PixelInternalFormat.Srgb;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Bgr565:
glInternalFormat = PixelInternalFormat.Rgb;
glFormat = PixelFormat.Rgb;
glType = PixelType.UnsignedShort565;
break;
case SurfaceFormat.Bgra4444:
#if IOS || ANDROID
glInternalFormat = PixelInternalFormat.Rgba;
#else
glInternalFormat = PixelInternalFormat.Rgba4;
#endif
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort4444;
break;
case SurfaceFormat.Bgra5551:
glInternalFormat = PixelInternalFormat.Rgba;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort5551;
break;
case SurfaceFormat.Alpha8:
glInternalFormat = PixelInternalFormat.Luminance;
glFormat = PixelFormat.Luminance;
glType = PixelType.UnsignedByte;
break;
case SurfaceFormat.Dxt1:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbS3tcDxt1Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt1;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbS3tcDxt1Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt1a:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt3SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt3;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5:
if (!supportsS3tc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Dxt5SRgb:
if (!supportsSRgb)
{
goto case SurfaceFormat.Dxt5;
}
glInternalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
glFormat = GLPixelFormat.CompressedTextureFormats;
break;
#if !IOS && !ANDROID && !ANGLE
case SurfaceFormat.Rgba1010102:
glInternalFormat = PixelInternalFormat.Rgb10A2ui;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedInt1010102;
break;
#endif
case SurfaceFormat.Single:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.R32f;
glFormat = PixelFormat.Red;
glType = PixelType.Float;
break;
case SurfaceFormat.HalfVector2:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg16f;
glFormat = PixelFormat.Rg;
glType = PixelType.HalfFloat;
break;
// HdrBlendable implemented as HalfVector4
// see http://blogs.msdn.com/b/shawnhar/archive/2010/07/09/surfaceformat-hdrblendable.aspx)
case SurfaceFormat.HdrBlendable:
case SurfaceFormat.HalfVector4:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba16f;
glFormat = PixelFormat.Rgba;
glType = PixelType.HalfFloat;
break;
case SurfaceFormat.HalfSingle:
if (!supportsHalfFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.R16f;
glFormat = PixelFormat.Red;
glType = isGLES2 ? PixelType.HalfFloatOES : PixelType.HalfFloat;
break;
case SurfaceFormat.Vector2:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg32f;
glFormat = PixelFormat.Rg;
glType = PixelType.Float;
break;
case SurfaceFormat.Vector4:
if (!supportsFloat)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba32f;
glFormat = PixelFormat.Rgba;
glType = PixelType.Float;
break;
case SurfaceFormat.NormalizedByte2:
glInternalFormat = PixelInternalFormat.Rg8i;
glFormat = PixelFormat.Rg;
glType = PixelType.Byte;
break;
case SurfaceFormat.NormalizedByte4:
glInternalFormat = PixelInternalFormat.Rgba8i;
glFormat = PixelFormat.Rgba;
glType = PixelType.Byte;
break;
case SurfaceFormat.Rg32:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rg16ui;
glFormat = PixelFormat.Rg;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.Rgba64:
if (!supportsNormalized)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Rgba16;
glFormat = PixelFormat.Rgba;
glType = PixelType.UnsignedShort;
break;
case SurfaceFormat.RgbaAtcExplicitAlpha:
if (!supportsAtitc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.AtcRgbaExplicitAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaAtcInterpolatedAlpha:
if (!supportsAtitc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.AtcRgbaInterpolatedAlphaAmd;
glFormat = PixelFormat.CompressedTextureFormats;
break;
#region Etc
case SurfaceFormat.RgbEtc1:
if (!supportsEtc1)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc1; // GL_ETC1_RGB8_OES
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Rgb8Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2Rgb8; // GL_COMPRESSED_RGB8_ETC2
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Srgb8Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2Srgb8; // GL_COMPRESSED_SRGB8_ETC2
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Rgb8A1Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2Rgb8A1; // GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Srgb8A1Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2Srgb8A1; // GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.Rgba8Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2Rgba8Eac; // GL_COMPRESSED_RGBA8_ETC2_EAC
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.SRgb8A8Etc2:
if (!supportsEtc2)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.Etc2SRgb8A8Eac; // GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
glFormat = PixelFormat.CompressedTextureFormats;
break;
#endregion
#region Pvrtc
case SurfaceFormat.RgbPvrtc2Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbPvrtc4Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc2Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc2Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
case SurfaceFormat.RgbaPvrtc4Bpp:
if (!supportsPvrtc)
{
goto case InvalidFormat;
}
glInternalFormat = PixelInternalFormat.CompressedRgbaPvrtc4Bppv1Img;
glFormat = PixelFormat.CompressedTextureFormats;
break;
#endregion
case InvalidFormat:
default:
throw new NotSupportedException(
$"The format `{format}` is not supported.");
}
}