public static void ConvertPixelFormat(GraphicsDevice graphicsDevice, ref PixelFormat inputFormat, out PixelInternalFormat internalFormat, out PixelFormatGl format, out PixelType type,
out int pixelSize, out bool compressed)
{
compressed = false;
// If the Device doesn't support SRGB, we remap automatically the format to non-srgb
if (!graphicsDevice.Features.HasSRgb)
{
switch (inputFormat)
{
case PixelFormat.ETC2_RGB_SRgb:
inputFormat = PixelFormat.ETC2_RGB;
break;
case PixelFormat.ETC2_RGBA_SRgb:
inputFormat = PixelFormat.ETC2_RGBA;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
inputFormat = PixelFormat.R8G8B8A8_UNorm;
break;
case PixelFormat.B8G8R8A8_UNorm_SRgb:
inputFormat = PixelFormat.B8G8R8A8_UNorm;
break;
}
}
switch (inputFormat)
{
case PixelFormat.A8_UNorm:
internalFormat = PixelInternalFormat.Alpha;
format = PixelFormatGl.Alpha;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8_UNorm:
internalFormat = PixelInternalFormat.R8;
format = PixelFormatGl.Red;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8G8B8A8_UNorm:
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.B8G8R8A8_UNorm:
#if STRIDE_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasExtTextureFormatBGRA8888)
{
throw new NotSupportedException();
}
// It seems iOS and Android expects different things
#if STRIDE_PLATFORM_IOS
internalFormat = PixelInternalFormat.Rgba;
#else
internalFormat = (PixelInternalFormat)ExtTextureFormatBgra8888.BgraExt;
#endif
format = (PixelFormatGl)ExtTextureFormatBgra8888.BgraExt;
#else
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Bgra;
#endif
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
#if STRIDE_GRAPHICS_API_OPENGLCORE
case PixelFormat.B8G8R8A8_UNorm_SRgb:
// TODO: Check on iOS/Android and OpenGL 3
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Bgra;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.BC1_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC1_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
#endif
case PixelFormat.R16_SInt:
internalFormat = PixelInternalFormat.R16i;
format = PixelFormatGl.RedInteger;
type = PixelType.Short;
pixelSize = 2;
break;
case PixelFormat.R16_UInt:
internalFormat = PixelInternalFormat.R16ui;
format = PixelFormatGl.RedInteger;
type = PixelType.UnsignedShort;
pixelSize = 2;
break;
case PixelFormat.R16_Float:
internalFormat = PixelInternalFormat.R16f;
format = PixelFormatGl.Red;
type = PixelType.HalfFloat;
pixelSize = 2;
break;
case PixelFormat.R16G16_SInt:
internalFormat = PixelInternalFormat.Rg16i;
format = PixelFormatGl.RgInteger;
type = PixelType.Short;
pixelSize = 4;
break;
case PixelFormat.R16G16_UInt:
internalFormat = PixelInternalFormat.Rg16ui;
format = PixelFormatGl.RgInteger;
type = PixelType.UnsignedShort;
pixelSize = 4;
break;
case PixelFormat.R16G16_Float:
internalFormat = PixelInternalFormat.Rg16f;
format = PixelFormatGl.Rg;
type = PixelType.HalfFloat;
pixelSize = 4;
break;
case PixelFormat.R16G16B16A16_SInt:
internalFormat = PixelInternalFormat.Rgba16i;
format = PixelFormatGl.RgbaInteger;
type = PixelType.Short;
pixelSize = 8;
break;
case PixelFormat.R16G16B16A16_UInt:
internalFormat = PixelInternalFormat.Rgba16ui;
format = PixelFormatGl.RgbaInteger;
type = PixelType.UnsignedShort;
pixelSize = 8;
break;
case PixelFormat.R16G16B16A16_Float:
internalFormat = PixelInternalFormat.Rgba16f;
format = PixelFormatGl.Rgba;
type = PixelType.HalfFloat;
pixelSize = 8;
break;
case PixelFormat.R10G10B10A2_UNorm:
internalFormat = PixelInternalFormat.Rgb10A2;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedInt1010102;
pixelSize = 4;
break;
case PixelFormat.R11G11B10_Float:
internalFormat = PixelInternalFormat.R11fG11fB10f;
format = PixelFormatGl.Rgb;
type = PixelType.HalfFloat;
pixelSize = 4;
break;
case PixelFormat.R32_SInt:
internalFormat = PixelInternalFormat.R32i;
format = PixelFormatGl.RedInteger;
type = PixelType.Int;
pixelSize = 4;
break;
case PixelFormat.R32_UInt:
internalFormat = PixelInternalFormat.R32ui;
format = PixelFormatGl.RedInteger;
type = PixelType.UnsignedInt;
pixelSize = 4;
break;
case PixelFormat.R32_Float:
internalFormat = PixelInternalFormat.R32f;
format = PixelFormatGl.Red;
type = PixelType.Float;
pixelSize = 4;
break;
case PixelFormat.R32G32_SInt:
internalFormat = PixelInternalFormat.Rg32i;
format = PixelFormatGl.RgInteger;
type = PixelType.Int;
pixelSize = 8;
break;
case PixelFormat.R32G32_UInt:
internalFormat = PixelInternalFormat.Rg32ui;
format = PixelFormatGl.RgInteger;
type = PixelType.UnsignedInt;
pixelSize = 8;
break;
case PixelFormat.R32G32_Float:
internalFormat = PixelInternalFormat.Rg32f;
format = PixelFormatGl.Rg;
type = PixelType.Float;
pixelSize = 8;
break;
case PixelFormat.R32G32B32_SInt:
internalFormat = PixelInternalFormat.Rgb32i;
format = PixelFormatGl.RgbInteger;
type = PixelType.Int;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_UInt:
internalFormat = PixelInternalFormat.Rgb32ui;
format = PixelFormatGl.RgbInteger;
type = PixelType.UnsignedInt;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_Float:
internalFormat = PixelInternalFormat.Rgb32f;
format = PixelFormatGl.Rgb;
type = PixelType.Float;
pixelSize = 12;
break;
case PixelFormat.R32G32B32A32_SInt:
internalFormat = PixelInternalFormat.Rgba32i;
format = PixelFormatGl.RgbaInteger;
type = PixelType.Int;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_UInt:
internalFormat = PixelInternalFormat.Rgba32ui;
format = PixelFormatGl.RgbaInteger;
type = PixelType.UnsignedInt;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_Float:
internalFormat = PixelInternalFormat.Rgba32f;
format = PixelFormatGl.Rgba;
type = PixelType.Float;
pixelSize = 16;
break;
case PixelFormat.D16_UNorm:
internalFormat = PixelInternalFormat.DepthComponent16;
format = PixelFormatGl.DepthComponent;
type = PixelType.UnsignedShort;
pixelSize = 2;
break;
case PixelFormat.D24_UNorm_S8_UInt:
internalFormat = PixelInternalFormat.Depth24Stencil8;
format = PixelFormatGl.DepthStencil;
type = PixelType.UnsignedInt248;
pixelSize = 4;
break;
// TODO: Temporary depth format (need to decide relation between RenderTarget1D and Texture)
case PixelFormat.D32_Float:
internalFormat = PixelInternalFormat.DepthComponent32f;
format = PixelFormatGl.DepthComponent;
type = PixelType.Float;
pixelSize = 4;
break;
#if STRIDE_GRAPHICS_API_OPENGLES
// Desktop OpenGLES
case PixelFormat.ETC1:
// TODO: Runtime check for extension?
internalFormat = (PixelInternalFormat)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
format = (PixelFormatGl)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedRgba8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedRgba8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA_SRgb:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#endif
case PixelFormat.None: // TODO: remove this - this is only for buffers used in compute shaders
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Red;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
default:
throw new InvalidOperationException("Unsupported texture format: " + inputFormat);
}
}
public static void ConvertPixelFormat(GraphicsDevice graphicsDevice, ref PixelFormat inputFormat, out PixelInternalFormat internalFormat, out PixelFormatGl format, out PixelType type, out int pixelSize, out bool compressed)
{
compressed = false;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// check formats is the device is initialized with OpenGL ES 2
if (graphicsDevice.IsOpenGLES2)
{
switch (inputFormat)
{
case PixelFormat.R32_UInt:
case PixelFormat.R32_Float:
case PixelFormat.R32G32_Float:
case PixelFormat.R32G32B32_Float:
case PixelFormat.R16G16B16A16_Float:
case PixelFormat.R32G32B32A32_Float:
case PixelFormat.D32_Float:
throw new NotSupportedException(String.Format("Texture format {0} not supported", inputFormat));
// NOTE: We always allow PixelFormat.D24_UNorm_S8_UInt.
// If it is not supported we will fall back to separate D24/D16 and S8 resources when creating a texture.
}
}
#endif
// If the Device doesn't support SRGB, we remap automatically the format to non-srgb
if (!graphicsDevice.Features.HasSRgb)
{
switch (inputFormat)
{
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGB;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGBA;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGB;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGBA;
break;
case PixelFormat.ETC2_RGB_SRgb:
inputFormat = PixelFormat.ETC2_RGB;
break;
case PixelFormat.ETC2_RGBA_SRgb:
inputFormat = PixelFormat.ETC2_RGBA;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
inputFormat = PixelFormat.R8G8B8A8_UNorm;
break;
case PixelFormat.B8G8R8A8_UNorm_SRgb:
inputFormat = PixelFormat.B8G8R8A8_UNorm;
break;
}
}
switch (inputFormat)
{
case PixelFormat.A8_UNorm:
internalFormat = PixelInternalFormat.Alpha;
format = PixelFormatGl.Alpha;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasTextureRG && graphicsDevice.IsOpenGLES2)
{
internalFormat = PixelInternalFormat.Luminance;
format = PixelFormatGl.Luminance;
}
else
#endif
{
#if SILICONSTUDIO_PLATFORM_IOS
internalFormat = PixelInternalFormat.Luminance;
format = PixelFormatGl.Luminance;
#else
internalFormat = PixelInternalFormat.R8;
format = PixelFormatGl.Red;
#endif
}
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8G8B8A8_UNorm:
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.B8G8R8A8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasExtTextureFormatBGRA8888)
{
throw new NotSupportedException();
}
// It seems iOS and Android expects different things
#if SILICONSTUDIO_PLATFORM_IOS
internalFormat = PixelInternalFormat.Rgba;
#else
internalFormat = (PixelInternalFormat)ExtTextureFormatBgra8888.BgraExt;
#endif
format = (PixelFormatGl)ExtTextureFormatBgra8888.BgraExt;
#else
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Bgra;
#endif
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
internalFormat = graphicsDevice.IsOpenGLES2 ? SrgbAlpha : Srgb8Alpha8;
format = graphicsDevice.IsOpenGLES2 ? (PixelFormatGl)SrgbAlpha : PixelFormatGl.Rgba;
#else
internalFormat = Srgb8Alpha8;
format = PixelFormatGl.Rgba;
#endif
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLCORE
case PixelFormat.B8G8R8A8_UNorm_SRgb:
// TODO: Check on iOS/Android and OpenGL 3
internalFormat = Srgb8Alpha8;
format = PixelFormatGl.Bgra;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.BC1_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC1_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
#endif
case PixelFormat.R16_Float:
internalFormat = PixelInternalFormat.R16f;
format = PixelFormatGl.Red;
type = PixelType.HalfFloat;
pixelSize = 2;
break;
case PixelFormat.R16G16_Float:
internalFormat = PixelInternalFormat.Rg16f;
format = PixelFormatGl.Rg;
type = PixelType.HalfFloat;
pixelSize = 4;
break;
case PixelFormat.R16G16B16A16_Float:
internalFormat = PixelInternalFormat.Rgba16f;
format = PixelFormatGl.Rgba;
type = PixelType.HalfFloat;
pixelSize = 8;
break;
case PixelFormat.R32_UInt:
internalFormat = PixelInternalFormat.R32ui;
format = PixelFormatGl.RedInteger;
type = PixelType.UnsignedInt;
pixelSize = 4;
break;
case PixelFormat.R32_Float:
internalFormat = PixelInternalFormat.R32f;
format = PixelFormatGl.Red;
type = PixelType.Float;
pixelSize = 4;
break;
case PixelFormat.R32G32_Float:
internalFormat = PixelInternalFormat.Rg32f;
format = PixelFormatGl.Rg;
type = PixelType.Float;
pixelSize = 8;
break;
case PixelFormat.R32G32B32_Float:
internalFormat = PixelInternalFormat.Rgb32f;
format = PixelFormatGl.Rgb;
type = PixelType.Float;
pixelSize = 12;
break;
case PixelFormat.R32G32B32A32_Float:
internalFormat = PixelInternalFormat.Rgba32f;
format = PixelFormatGl.Rgba;
type = PixelType.Float;
pixelSize = 16;
break;
case PixelFormat.D16_UNorm:
internalFormat = PixelInternalFormat.DepthComponent16;
format = PixelFormatGl.DepthComponent;
type = PixelType.UnsignedShort;
pixelSize = 2;
break;
case PixelFormat.D24_UNorm_S8_UInt:
internalFormat = PixelInternalFormat.Depth24Stencil8;
format = PixelFormatGl.DepthStencil;
type = PixelType.UnsignedInt248;
pixelSize = 4;
break;
// TODO: Temporary depth format (need to decide relation between RenderTarget1D and Texture)
case PixelFormat.D32_Float:
internalFormat = PixelInternalFormat.DepthComponent32f;
format = PixelFormatGl.DepthComponent;
type = PixelType.Float;
pixelSize = 4;
break;
#if SILICONSTUDIO_PLATFORM_IOS
case PixelFormat.PVRTC_4bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedSrgbPvrtc4Bppv1Ext;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedSrgbPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedSrgbPvrtc2Bppv1Ext;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedSrgbPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedSrgbAlphaPvrtc4Bppv1Ext;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedSrgbAlphaPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedSrgbAlphaPvrtc2Bppv1Ext;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedSrgbAlphaPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#elif SILICONSTUDIO_PLATFORM_ANDROID || !SILICONSTUDIO_PLATFORM_MONO_MOBILE && SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// Desktop OpenGLES
case PixelFormat.ETC1:
// TODO: Runtime check for extension?
internalFormat = (PixelInternalFormat)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
format = (PixelFormatGl)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedRgba8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedRgba8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA_SRgb:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#endif
case PixelFormat.None: // TODO: remove this - this is only for buffers used in compute shaders
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Red;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
default:
throw new InvalidOperationException("Unsupported texture format");
}
}
public static void ConvertPixelFormat(GraphicsDevice graphicsDevice, ref PixelFormat inputFormat, out PixelInternalFormat internalFormat, out PixelFormatGl format, out PixelType type,
out int pixelSize, out bool compressed)
{
compressed = false;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// check formats more carefully if the device is initialized with OpenGL ES 2
if (graphicsDevice.currentVersion < 300)
{
switch (inputFormat)
{
case PixelFormat.R16_Float:
case PixelFormat.R16G16_Float:
if (!graphicsDevice.HasTextureRG || !graphicsDevice.HasTextureHalf)
{
goto unsupported;
}
break;
case PixelFormat.R16G16B16A16_Float:
if (!graphicsDevice.HasTextureHalf)
{
goto unsupported;
}
break;
case PixelFormat.R16_UInt:
case PixelFormat.R16_SInt:
case PixelFormat.R16G16_UInt:
case PixelFormat.R16G16_SInt:
case PixelFormat.R16G16B16A16_UInt:
case PixelFormat.R16G16B16A16_SInt:
goto unsupported;
case PixelFormat.R32_Float:
case PixelFormat.R32G32_Float:
case PixelFormat.R32G32B32_Float:
if (!graphicsDevice.HasTextureRG || !graphicsDevice.HasTextureFloat)
{
goto unsupported;
}
break;
case PixelFormat.R32G32B32A32_Float:
if (!graphicsDevice.HasTextureFloat)
{
goto unsupported;
}
break;
case PixelFormat.R32_UInt:
case PixelFormat.R32_SInt:
case PixelFormat.R32G32_UInt:
case PixelFormat.R32G32_SInt:
case PixelFormat.R32G32B32_UInt:
case PixelFormat.R32G32B32_SInt:
case PixelFormat.R32G32B32A32_UInt:
case PixelFormat.R32G32B32A32_SInt:
goto unsupported;
case PixelFormat.D32_Float:
goto unsupported;
unsupported:
throw new NotSupportedException($"Texture format {inputFormat} not supported with OpenGL ES 2.0");
// NOTE: We always allow PixelFormat.D24_UNorm_S8_UInt.
// If it is not supported we will fall back to separate D24/D16 and S8 resources when creating a texture.
}
}
#endif
// If the Device doesn't support SRGB, we remap automatically the format to non-srgb
if (!graphicsDevice.Features.HasSRgb)
{
switch (inputFormat)
{
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGB;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGBA;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGB;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGBA;
break;
case PixelFormat.ETC2_RGB_SRgb:
inputFormat = PixelFormat.ETC2_RGB;
break;
case PixelFormat.ETC2_RGBA_SRgb:
inputFormat = PixelFormat.ETC2_RGBA;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
inputFormat = PixelFormat.R8G8B8A8_UNorm;
break;
case PixelFormat.B8G8R8A8_UNorm_SRgb:
inputFormat = PixelFormat.B8G8R8A8_UNorm;
break;
}
}
switch (inputFormat)
{
case PixelFormat.A8_UNorm:
internalFormat = PixelInternalFormat.Alpha;
format = PixelFormatGl.Alpha;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasTextureRG && graphicsDevice.currentVersion < 300)
{
internalFormat = PixelInternalFormat.Luminance;
format = PixelFormatGl.Luminance;
}
else
#endif
{
internalFormat = PixelInternalFormat.R8;
format = PixelFormatGl.Red;
}
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8G8B8A8_UNorm:
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.B8G8R8A8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasExtTextureFormatBGRA8888)
{
throw new NotSupportedException();
}
// It seems iOS and Android expects different things
#if SILICONSTUDIO_PLATFORM_IOS
internalFormat = PixelInternalFormat.Rgba;
#else
internalFormat = (PixelInternalFormat)ExtTextureFormatBgra8888.BgraExt;
#endif
format = (PixelFormatGl)ExtTextureFormatBgra8888.BgraExt;
#else
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Bgra;
#endif
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLCORE
case PixelFormat.B8G8R8A8_UNorm_SRgb:
// TODO: Check on iOS/Android and OpenGL 3
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Bgra;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.BC1_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC1_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
{
throw new NotSupportedException();
}
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
#endif
case PixelFormat.R16_Float:
internalFormat = PixelInternalFormat.R16f;
format = PixelFormatGl.Red;
type = PixelType.HalfFloat;
pixelSize = 2;
break;
case PixelFormat.R16G16_Float:
internalFormat = PixelInternalFormat.Rg16f;
format = PixelFormatGl.Rg;
type = PixelType.HalfFloat;
pixelSize = 4;
break;
case PixelFormat.R16G16B16A16_Float:
internalFormat = PixelInternalFormat.Rgba16f;
format = PixelFormatGl.Rgba;
type = PixelType.HalfFloat;
pixelSize = 8;
break;
case PixelFormat.R32_SInt:
internalFormat = PixelInternalFormat.R32i;
format = PixelFormatGl.RedInteger;
type = PixelType.Int;
pixelSize = 4;
break;
case PixelFormat.R32_UInt:
internalFormat = PixelInternalFormat.R32ui;
format = PixelFormatGl.RedInteger;
type = PixelType.UnsignedInt;
pixelSize = 4;
break;
case PixelFormat.R32_Float:
internalFormat = PixelInternalFormat.R32f;
format = PixelFormatGl.Red;
type = PixelType.Float;
pixelSize = 4;
break;
case PixelFormat.R32G32_SInt:
internalFormat = PixelInternalFormat.Rg32i;
format = PixelFormatGl.RgInteger;
type = PixelType.Int;
pixelSize = 8;
break;
case PixelFormat.R32G32_UInt:
internalFormat = PixelInternalFormat.Rg32ui;
format = PixelFormatGl.RgInteger;
type = PixelType.UnsignedInt;
pixelSize = 8;
break;
case PixelFormat.R32G32_Float:
internalFormat = PixelInternalFormat.Rg32f;
format = PixelFormatGl.Rg;
type = PixelType.Float;
pixelSize = 8;
break;
case PixelFormat.R32G32B32_SInt:
internalFormat = PixelInternalFormat.Rgb32i;
format = PixelFormatGl.RgbInteger;
type = PixelType.Int;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_UInt:
internalFormat = PixelInternalFormat.Rgb32ui;
format = PixelFormatGl.RgbInteger;
type = PixelType.UnsignedInt;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_Float:
internalFormat = PixelInternalFormat.Rgb32f;
format = PixelFormatGl.Rgb;
type = PixelType.Float;
pixelSize = 12;
break;
case PixelFormat.R32G32B32A32_SInt:
internalFormat = PixelInternalFormat.Rgba32i;
format = PixelFormatGl.RgbaInteger;
type = PixelType.Int;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_UInt:
internalFormat = PixelInternalFormat.Rgba32ui;
format = PixelFormatGl.RgbaInteger;
type = PixelType.UnsignedInt;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_Float:
internalFormat = PixelInternalFormat.Rgba32f;
format = PixelFormatGl.Rgba;
type = PixelType.Float;
pixelSize = 16;
break;
case PixelFormat.D16_UNorm:
internalFormat = PixelInternalFormat.DepthComponent16;
format = PixelFormatGl.DepthComponent;
type = PixelType.UnsignedShort;
pixelSize = 2;
break;
case PixelFormat.D24_UNorm_S8_UInt:
internalFormat = PixelInternalFormat.Depth24Stencil8;
format = PixelFormatGl.DepthStencil;
type = PixelType.UnsignedInt248;
pixelSize = 4;
break;
// TODO: Temporary depth format (need to decide relation between RenderTarget1D and Texture)
case PixelFormat.D32_Float:
internalFormat = PixelInternalFormat.DepthComponent32f;
format = PixelFormatGl.DepthComponent;
type = PixelType.Float;
pixelSize = 4;
break;
#if SILICONSTUDIO_PLATFORM_IOS
case PixelFormat.PVRTC_4bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbPvrtc4Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbPvrtc2Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc4Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc2Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#elif SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// Desktop OpenGLES
case PixelFormat.ETC1:
// TODO: Runtime check for extension?
internalFormat = (PixelInternalFormat)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
format = (PixelFormatGl)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedRgba8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedRgba8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA_SRgb:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#endif
case PixelFormat.None: // TODO: remove this - this is only for buffers used in compute shaders
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Red;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
default:
throw new InvalidOperationException("Unsupported texture format");
}
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// override some formats for ES2.0
if (graphicsDevice.currentVersion < 300)
{
switch (inputFormat)
{
case PixelFormat.R8G8B8A8_UNorm_SRgb:
// HasSRgb was true because we have GL_EXT_sRGB
// Note: Qualcomm Adreno 4xx fails to use GL_EXT_sRGB with FBO,
// but they will report a currentVersion >= 300 (ES 3.0) anyway
internalFormat = (PixelInternalFormat)ExtSrgb.SrgbAlphaExt;
format = (PixelFormatGl)ExtSrgb.SrgbAlphaExt;
break;
case PixelFormat.R8_UNorm:
case PixelFormat.R8_SNorm:
case PixelFormat.R8_UInt:
case PixelFormat.R8_SInt:
case PixelFormat.R16_Float:
case PixelFormat.R16_UNorm:
case PixelFormat.R16_SNorm:
case PixelFormat.R16_UInt:
case PixelFormat.R16_SInt:
case PixelFormat.R32_Float:
case PixelFormat.R32_UInt:
case PixelFormat.R32_SInt:
if (inputFormat == PixelFormat.R16_Float)
{
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
}
if (graphicsDevice.HasTextureRG)
{
internalFormat = (PixelInternalFormat)ExtTextureRg.RedExt;
}
break;
case PixelFormat.R16G16_Float:
case PixelFormat.R16G16_UNorm:
case PixelFormat.R16G16_SNorm:
case PixelFormat.R16G16_UInt:
case PixelFormat.R16G16_SInt:
case PixelFormat.R32G32_Float:
case PixelFormat.R32G32_UInt:
case PixelFormat.R32G32_SInt:
if (inputFormat == PixelFormat.R16G16_Float)
{
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
}
if (graphicsDevice.HasTextureRG)
{
internalFormat = (PixelInternalFormat)ExtTextureRg.RgExt;
}
break;
case PixelFormat.R32G32B32_Float:
case PixelFormat.R32G32B32_UInt:
case PixelFormat.R32G32B32_SInt:
internalFormat = PixelInternalFormat.Rgb;
break;
case PixelFormat.R16G16B16A16_Float:
case PixelFormat.R32G32B32A32_Float:
case PixelFormat.R16G16B16A16_UInt:
case PixelFormat.R32G32B32A32_UInt:
case PixelFormat.R16G16B16A16_SInt:
case PixelFormat.R32G32B32A32_SInt:
if (inputFormat == PixelFormat.R16G16B16A16_Float)
{
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
}
internalFormat = PixelInternalFormat.Rgba;
break;
}
}
#endif
}
public static void ConvertPixelFormat(GraphicsDevice graphicsDevice, ref PixelFormat inputFormat, out PixelInternalFormat internalFormat, out PixelFormatGl format, out PixelType type,
out int pixelSize, out bool compressed)
{
compressed = false;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// check formats more carefully if the device is initialized with OpenGL ES 2
if (graphicsDevice.currentVersion < 300)
{
switch (inputFormat)
{
case PixelFormat.R16_Float:
case PixelFormat.R16G16_Float:
if (!graphicsDevice.HasTextureRG || !graphicsDevice.HasTextureHalf)
goto unsupported;
break;
case PixelFormat.R16G16B16A16_Float:
if (!graphicsDevice.HasTextureHalf)
goto unsupported;
break;
case PixelFormat.R16_UInt:
case PixelFormat.R16_SInt:
case PixelFormat.R16G16_UInt:
case PixelFormat.R16G16_SInt:
case PixelFormat.R16G16B16A16_UInt:
case PixelFormat.R16G16B16A16_SInt:
goto unsupported;
case PixelFormat.R32_Float:
case PixelFormat.R32G32_Float:
case PixelFormat.R32G32B32_Float:
if (!graphicsDevice.HasTextureRG || !graphicsDevice.HasTextureFloat)
goto unsupported;
break;
case PixelFormat.R32G32B32A32_Float:
if (!graphicsDevice.HasTextureFloat)
goto unsupported;
break;
case PixelFormat.R32_UInt:
case PixelFormat.R32_SInt:
case PixelFormat.R32G32_UInt:
case PixelFormat.R32G32_SInt:
case PixelFormat.R32G32B32_UInt:
case PixelFormat.R32G32B32_SInt:
case PixelFormat.R32G32B32A32_UInt:
case PixelFormat.R32G32B32A32_SInt:
goto unsupported;
case PixelFormat.D32_Float:
goto unsupported;
unsupported:
throw new NotSupportedException($"Texture format {inputFormat} not supported with OpenGL ES 2.0");
// NOTE: We always allow PixelFormat.D24_UNorm_S8_UInt.
// If it is not supported we will fall back to separate D24/D16 and S8 resources when creating a texture.
}
}
#endif
// If the Device doesn't support SRGB, we remap automatically the format to non-srgb
if (!graphicsDevice.Features.HasSRgb)
{
switch (inputFormat)
{
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGB;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_2bpp_RGBA;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGB;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
inputFormat = PixelFormat.PVRTC_4bpp_RGBA;
break;
case PixelFormat.ETC2_RGB_SRgb:
inputFormat = PixelFormat.ETC2_RGB;
break;
case PixelFormat.ETC2_RGBA_SRgb:
inputFormat = PixelFormat.ETC2_RGBA;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
inputFormat = PixelFormat.R8G8B8A8_UNorm;
break;
case PixelFormat.B8G8R8A8_UNorm_SRgb:
inputFormat = PixelFormat.B8G8R8A8_UNorm;
break;
}
}
switch (inputFormat)
{
case PixelFormat.A8_UNorm:
internalFormat = PixelInternalFormat.Alpha;
format = PixelFormatGl.Alpha;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasTextureRG && graphicsDevice.currentVersion < 300)
{
internalFormat = PixelInternalFormat.Luminance;
format = PixelFormatGl.Luminance;
}
else
#endif
{
internalFormat = PixelInternalFormat.R8;
format = PixelFormatGl.Red;
}
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
case PixelFormat.R8G8B8A8_UNorm:
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.B8G8R8A8_UNorm:
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
if (!graphicsDevice.HasExtTextureFormatBGRA8888)
throw new NotSupportedException();
// It seems iOS and Android expects different things
#if SILICONSTUDIO_PLATFORM_IOS
internalFormat = PixelInternalFormat.Rgba;
#else
internalFormat = (PixelInternalFormat)ExtTextureFormatBgra8888.BgraExt;
#endif
format = (PixelFormatGl)ExtTextureFormatBgra8888.BgraExt;
#else
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Bgra;
#endif
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.R8G8B8A8_UNorm_SRgb:
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Rgba;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLCORE
case PixelFormat.B8G8R8A8_UNorm_SRgb:
// TODO: Check on iOS/Android and OpenGL 3
internalFormat = PixelInternalFormat.Srgb8Alpha8;
format = PixelFormatGl.Bgra;
type = PixelType.UnsignedByte;
pixelSize = 4;
break;
case PixelFormat.BC1_UNorm:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC1_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt1Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC2_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt3Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedRgbaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
case PixelFormat.BC3_UNorm_SRgb:
if (!graphicsDevice.HasDXT)
throw new NotSupportedException();
internalFormat = PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
format = (PixelFormatGl)PixelInternalFormat.CompressedSrgbAlphaS3tcDxt5Ext;
pixelSize = 4;
type = PixelType.UnsignedByte;
compressed = true;
break;
#endif
case PixelFormat.R16_Float:
internalFormat = PixelInternalFormat.R16f;
format = PixelFormatGl.Red;
type = PixelType.HalfFloat;
pixelSize = 2;
break;
case PixelFormat.R16G16_Float:
internalFormat = PixelInternalFormat.Rg16f;
format = PixelFormatGl.Rg;
type = PixelType.HalfFloat;
pixelSize = 4;
break;
case PixelFormat.R16G16B16A16_Float:
internalFormat = PixelInternalFormat.Rgba16f;
format = PixelFormatGl.Rgba;
type = PixelType.HalfFloat;
pixelSize = 8;
break;
case PixelFormat.R32_SInt:
internalFormat = PixelInternalFormat.R32i;
format = PixelFormatGl.RedInteger;
type = PixelType.Int;
pixelSize = 4;
break;
case PixelFormat.R32_UInt:
internalFormat = PixelInternalFormat.R32ui;
format = PixelFormatGl.RedInteger;
type = PixelType.UnsignedInt;
pixelSize = 4;
break;
case PixelFormat.R32_Float:
internalFormat = PixelInternalFormat.R32f;
format = PixelFormatGl.Red;
type = PixelType.Float;
pixelSize = 4;
break;
case PixelFormat.R32G32_SInt:
internalFormat = PixelInternalFormat.Rg32i;
format = PixelFormatGl.RgInteger;
type = PixelType.Int;
pixelSize = 8;
break;
case PixelFormat.R32G32_UInt:
internalFormat = PixelInternalFormat.Rg32ui;
format = PixelFormatGl.RgInteger;
type = PixelType.UnsignedInt;
pixelSize = 8;
break;
case PixelFormat.R32G32_Float:
internalFormat = PixelInternalFormat.Rg32f;
format = PixelFormatGl.Rg;
type = PixelType.Float;
pixelSize = 8;
break;
case PixelFormat.R32G32B32_SInt:
internalFormat = PixelInternalFormat.Rgb32i;
format = PixelFormatGl.RgbInteger;
type = PixelType.Int;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_UInt:
internalFormat = PixelInternalFormat.Rgb32ui;
format = PixelFormatGl.RgbInteger;
type = PixelType.UnsignedInt;
pixelSize = 12;
break;
case PixelFormat.R32G32B32_Float:
internalFormat = PixelInternalFormat.Rgb32f;
format = PixelFormatGl.Rgb;
type = PixelType.Float;
pixelSize = 12;
break;
case PixelFormat.R32G32B32A32_SInt:
internalFormat = PixelInternalFormat.Rgba32i;
format = PixelFormatGl.RgbaInteger;
type = PixelType.Int;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_UInt:
internalFormat = PixelInternalFormat.Rgba32ui;
format = PixelFormatGl.RgbaInteger;
type = PixelType.UnsignedInt;
pixelSize = 16;
break;
case PixelFormat.R32G32B32A32_Float:
internalFormat = PixelInternalFormat.Rgba32f;
format = PixelFormatGl.Rgba;
type = PixelType.Float;
pixelSize = 16;
break;
case PixelFormat.D16_UNorm:
internalFormat = PixelInternalFormat.DepthComponent16;
format = PixelFormatGl.DepthComponent;
type = PixelType.UnsignedShort;
pixelSize = 2;
break;
case PixelFormat.D24_UNorm_S8_UInt:
internalFormat = PixelInternalFormat.Depth24Stencil8;
format = PixelFormatGl.DepthStencil;
type = PixelType.UnsignedInt248;
pixelSize = 4;
break;
// TODO: Temporary depth format (need to decide relation between RenderTarget1D and Texture)
case PixelFormat.D32_Float:
internalFormat = PixelInternalFormat.DepthComponent32f;
format = PixelFormatGl.DepthComponent;
type = PixelType.Float;
pixelSize = 4;
break;
#if SILICONSTUDIO_PLATFORM_IOS
case PixelFormat.PVRTC_4bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc4Bppv1Img;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA:
internalFormat = (PixelInternalFormat)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
format = (PixelFormatGl)ImgTextureCompressionPvrtc.CompressedRgbaPvrtc2Bppv1Img;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbPvrtc4Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGB_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbPvrtc2Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_4bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc4Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc4Bppv1Ext;
compressed = true;
pixelSize = 4;
type = PixelType.UnsignedByte;
break;
case PixelFormat.PVRTC_2bpp_RGBA_SRgb:
internalFormat = (PixelInternalFormat)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc2Bppv1Ext;
format = (PixelFormatGl)ExtPvrtcSrgb.CompressedSrgbAlphaPvrtc2Bppv1Ext;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#elif SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// Desktop OpenGLES
case PixelFormat.ETC1:
// TODO: Runtime check for extension?
internalFormat = (PixelInternalFormat)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
format = (PixelFormatGl)OesCompressedEtc1Rgb8Texture.Etc1Rgb8Oes;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedRgba8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedRgba8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
case PixelFormat.ETC2_RGBA_SRgb:
internalFormat = (PixelInternalFormat)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
format = (PixelFormatGl)CompressedInternalFormat.CompressedSrgb8Alpha8Etc2Eac;
compressed = true;
pixelSize = 2;
type = PixelType.UnsignedByte;
break;
#endif
case PixelFormat.None: // TODO: remove this - this is only for buffers used in compute shaders
internalFormat = PixelInternalFormat.Rgba;
format = PixelFormatGl.Red;
type = PixelType.UnsignedByte;
pixelSize = 1;
break;
default:
throw new InvalidOperationException("Unsupported texture format: " + inputFormat);
}
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// override some formats for ES2.0
if (graphicsDevice.currentVersion < 300)
{
switch (inputFormat)
{
case PixelFormat.R8G8B8A8_UNorm_SRgb:
// HasSRgb was true because we have GL_EXT_sRGB
// Note: Qualcomm Adreno 4xx fails to use GL_EXT_sRGB with FBO,
// but they will report a currentVersion >= 300 (ES 3.0) anyway
internalFormat = (PixelInternalFormat)ExtSrgb.SrgbAlphaExt;
format = (PixelFormatGl)ExtSrgb.SrgbAlphaExt;
break;
case PixelFormat.R8_UNorm:
case PixelFormat.R8_SNorm:
case PixelFormat.R8_UInt:
case PixelFormat.R8_SInt:
case PixelFormat.R16_Float:
case PixelFormat.R16_UNorm:
case PixelFormat.R16_SNorm:
case PixelFormat.R16_UInt:
case PixelFormat.R16_SInt:
case PixelFormat.R32_Float:
case PixelFormat.R32_UInt:
case PixelFormat.R32_SInt:
if (inputFormat == PixelFormat.R16_Float)
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
if (graphicsDevice.HasTextureRG)
internalFormat = (PixelInternalFormat)ExtTextureRg.RedExt;
break;
case PixelFormat.R16G16_Float:
case PixelFormat.R16G16_UNorm:
case PixelFormat.R16G16_SNorm:
case PixelFormat.R16G16_UInt:
case PixelFormat.R16G16_SInt:
case PixelFormat.R32G32_Float:
case PixelFormat.R32G32_UInt:
case PixelFormat.R32G32_SInt:
if (inputFormat == PixelFormat.R16G16_Float)
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
if (graphicsDevice.HasTextureRG)
internalFormat = (PixelInternalFormat)ExtTextureRg.RgExt;
break;
case PixelFormat.R32G32B32_Float:
case PixelFormat.R32G32B32_UInt:
case PixelFormat.R32G32B32_SInt:
internalFormat = PixelInternalFormat.Rgb;
break;
case PixelFormat.R16G16B16A16_Float:
case PixelFormat.R32G32B32A32_Float:
case PixelFormat.R16G16B16A16_UInt:
case PixelFormat.R32G32B32A32_UInt:
case PixelFormat.R16G16B16A16_SInt:
case PixelFormat.R32G32B32A32_SInt:
if (inputFormat == PixelFormat.R16G16B16A16_Float)
type = (PixelType)OesTextureHalfFloat.HalfFloatOes;
internalFormat = PixelInternalFormat.Rgba;
break;
}
}
#endif
}