internal static bool IsFormatSupported(OpenGLExtensions extensions, PixelFormat format, GraphicsBackend backend)
{
switch (format)
{
case PixelFormat.ETC2_R8_G8_B8_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A1_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A8_UNorm:
return(extensions.GLESVersion(3, 0) || extensions.GLVersion(4, 3));
case PixelFormat.BC1_Rgb_UNorm:
case PixelFormat.BC1_Rgba_UNorm:
case PixelFormat.BC2_UNorm:
case PixelFormat.BC3_UNorm:
return(extensions.IsExtensionSupported("GL_EXT_texture_compression_s3tc"));
case PixelFormat.BC4_UNorm:
case PixelFormat.BC4_SNorm:
case PixelFormat.BC5_UNorm:
case PixelFormat.BC5_SNorm:
return(extensions.GLVersion(3, 0) || extensions.IsExtensionSupported("GL_ARB_texture_compression_rgtc"));
case PixelFormat.BC7_UNorm:
return(extensions.GLVersion(4, 2) || extensions.IsExtensionSupported("GL_ARB_texture_compression_bptc") ||
extensions.IsExtensionSupported("GL_EXT_texture_compression_bptc"));
case PixelFormat.B8_G8_R8_A8_UNorm:
case PixelFormat.B8_G8_R8_A8_UNorm_SRgb:
case PixelFormat.R10_G10_B10_A2_UInt:
case PixelFormat.R10_G10_B10_A2_UNorm:
return(backend == GraphicsBackend.OpenGL);
default:
return(true);
}
}
internal static bool IsFormatSupported(OpenGLExtensions extensions, PixelFormat format)
{
switch (format)
{
case PixelFormat.ETC2_R8_G8_B8_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A1_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A8_UNorm:
return(extensions.GLESVersion(3, 0) || extensions.GLVersion(4, 3));
case PixelFormat.BC1_Rgb_UNorm:
case PixelFormat.BC1_Rgba_UNorm:
case PixelFormat.BC2_UNorm:
case PixelFormat.BC3_UNorm:
return(extensions.IsExtensionSupported("GL_EXT_texture_compression_s3tc"));
default:
return(true);
}
}
