public static int GetElementCount(VertexElementFormat format)
{
switch (format)
{
case VertexElementFormat.Float1:
case VertexElementFormat.UInt1:
case VertexElementFormat.Int1:
return(1);
case VertexElementFormat.Float2:
case VertexElementFormat.Byte2_Norm:
case VertexElementFormat.Byte2:
case VertexElementFormat.SByte2_Norm:
case VertexElementFormat.SByte2:
case VertexElementFormat.UShort2_Norm:
case VertexElementFormat.UShort2:
case VertexElementFormat.Short2_Norm:
case VertexElementFormat.Short2:
case VertexElementFormat.UInt2:
case VertexElementFormat.Int2:
return(2);
case VertexElementFormat.Float3:
case VertexElementFormat.UInt3:
case VertexElementFormat.Int3:
return(3);
case VertexElementFormat.Float4:
case VertexElementFormat.Byte4_Norm:
case VertexElementFormat.Byte4:
case VertexElementFormat.SByte4_Norm:
case VertexElementFormat.SByte4:
case VertexElementFormat.UShort4_Norm:
case VertexElementFormat.UShort4:
case VertexElementFormat.Short4_Norm:
case VertexElementFormat.Short4:
case VertexElementFormat.UInt4:
case VertexElementFormat.Int4:
return(4);
default:
throw Illegal.Value <VertexElementFormat>();
}
}
public static uint GetBlockSizeInBytes(PixelFormat format)
{
switch (format)
{
case PixelFormat.BC1_Rgba_UNorm:
case PixelFormat.BC1_Rgb_UNorm:
case PixelFormat.ETC2_R8_G8_B8_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A1_UNorm:
return(8);
case PixelFormat.BC2_UNorm:
case PixelFormat.BC3_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A8_UNorm:
return(16);
default:
throw Illegal.Value <PixelFormat>();
}
}
public static uint GetSizeInBytes(PixelFormat format)
{
switch (format)
{
case PixelFormat.R8_UNorm:
return(1);
case PixelFormat.R16_UNorm:
return(2);
case PixelFormat.R8_G8_B8_A8_UNorm:
case PixelFormat.B8_G8_R8_A8_UNorm:
case PixelFormat.R32_Float:
return(4);
case PixelFormat.R32_G32_B32_A32_Float:
return(16);
default: throw Illegal.Value <PixelFormat>();
}
}
internal static int GetElementCount(VertexElementFormat format)
{
switch (format)
{
case VertexElementFormat.Float1:
case VertexElementFormat.Byte1:
return(1);
case VertexElementFormat.Float2:
case VertexElementFormat.Byte2:
return(2);
case VertexElementFormat.Float3:
return(3);
case VertexElementFormat.Float4:
case VertexElementFormat.Byte4:
return(4);
default:
throw Illegal.Value <VertexElementFormat>();
}
}
public static uint GetSizeInBytes(PixelFormat format)
{
switch (format)
{
case PixelFormat.R8_UNorm:
case PixelFormat.R8_SNorm:
case PixelFormat.R8_UInt:
case PixelFormat.R8_SInt:
return(1);
case PixelFormat.R16_UNorm:
case PixelFormat.R16_SNorm:
case PixelFormat.R16_UInt:
case PixelFormat.R16_SInt:
case PixelFormat.R16_Float:
case PixelFormat.R8_G8_UNorm:
case PixelFormat.R8_G8_SNorm:
case PixelFormat.R8_G8_UInt:
case PixelFormat.R8_G8_SInt:
return(2);
case PixelFormat.R32_UInt:
case PixelFormat.R32_SInt:
case PixelFormat.R32_Float:
case PixelFormat.R16_G16_UNorm:
case PixelFormat.R16_G16_SNorm:
case PixelFormat.R16_G16_UInt:
case PixelFormat.R16_G16_SInt:
case PixelFormat.R16_G16_Float:
case PixelFormat.R8_G8_B8_A8_UNorm:
case PixelFormat.R8_G8_B8_A8_SNorm:
case PixelFormat.R8_G8_B8_A8_UInt:
case PixelFormat.R8_G8_B8_A8_SInt:
case PixelFormat.B8_G8_R8_A8_UNorm:
case PixelFormat.R10_G10_B10_A2_UNorm:
case PixelFormat.R10_G10_B10_A2_UInt:
case PixelFormat.R11_G11_B10_Float:
case PixelFormat.D24_UNorm_S8_UInt:
return(4);
case PixelFormat.D32_Float_S8_UInt:
return(5);
case PixelFormat.R16_G16_B16_A16_UNorm:
case PixelFormat.R16_G16_B16_A16_SNorm:
case PixelFormat.R16_G16_B16_A16_UInt:
case PixelFormat.R16_G16_B16_A16_SInt:
case PixelFormat.R16_G16_B16_A16_Float:
case PixelFormat.R32_G32_UInt:
case PixelFormat.R32_G32_SInt:
case PixelFormat.R32_G32_Float:
return(8);
case PixelFormat.R32_G32_B32_A32_Float:
case PixelFormat.R32_G32_B32_A32_UInt:
case PixelFormat.R32_G32_B32_A32_SInt:
return(16);
case PixelFormat.BC1_Rgb_UNorm:
case PixelFormat.BC1_Rgba_UNorm:
case PixelFormat.BC2_UNorm:
case PixelFormat.BC3_UNorm:
case PixelFormat.BC4_UNorm:
case PixelFormat.BC4_SNorm:
case PixelFormat.BC5_UNorm:
case PixelFormat.BC5_SNorm:
case PixelFormat.BC7_UNorm:
case PixelFormat.ETC2_R8_G8_B8_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A1_UNorm:
case PixelFormat.ETC2_R8_G8_B8_A8_UNorm:
Debug.Fail("GetSizeInBytes should not be used on a compressed format.");
throw Illegal.Value <PixelFormat>();
default: throw Illegal.Value <PixelFormat>();
}
}
private static void ValidateResourceKind(ResourceKind kind, BindableResource resource, uint slot)
{
switch (kind)
{
case ResourceKind.UniformBuffer:
{
if (!Util.GetDeviceBuffer(resource, out DeviceBuffer b) ||
(b.Usage & BufferUsage.UniformBuffer) == 0)
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)}.{kind} specified in the {nameof(ResourceLayout)}. " +
$"It must be a {nameof(DeviceBuffer)} or {nameof(DeviceBufferRange)} with {nameof(BufferUsage)}.{nameof(BufferUsage.UniformBuffer)}.");
}
break;
}
case ResourceKind.StructuredBufferReadOnly:
{
if (!Util.GetDeviceBuffer(resource, out DeviceBuffer b) ||
(b.Usage & (BufferUsage.StructuredBufferReadOnly | BufferUsage.StructuredBufferReadWrite)) == 0)
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)}.{kind} specified in the {nameof(ResourceLayout)}. It must be a {nameof(DeviceBuffer)} with {nameof(BufferUsage)}.{nameof(BufferUsage.StructuredBufferReadOnly)}.");
}
break;
}
case ResourceKind.StructuredBufferReadWrite:
{
if (!Util.GetDeviceBuffer(resource, out DeviceBuffer b) ||
(b.Usage & BufferUsage.StructuredBufferReadWrite) == 0)
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)} specified in the {nameof(ResourceLayout)}. It must be a {nameof(DeviceBuffer)} with {nameof(BufferUsage)}.{nameof(BufferUsage.StructuredBufferReadWrite)}.");
}
break;
}
case ResourceKind.TextureReadOnly:
{
if (!(resource is TextureView tv && (tv.Target.Usage & TextureUsage.Sampled) != 0) &&
!(resource is Texture t && (t.Usage & TextureUsage.Sampled) != 0))
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)}.{kind} specified in the " +
$"{nameof(ResourceLayout)}. It must be a {nameof(Texture)} or {nameof(TextureView)} whose target " +
$"has {nameof(TextureUsage)}.{nameof(TextureUsage.Sampled)}.");
}
break;
}
case ResourceKind.TextureReadWrite:
{
if (!(resource is TextureView tv && (tv.Target.Usage & TextureUsage.Storage) != 0) &&
!(resource is Texture t && (t.Usage & TextureUsage.Storage) != 0))
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)}.{kind} specified in the " +
$"{nameof(ResourceLayout)}. It must be a {nameof(Texture)} or {nameof(TextureView)} whose target " +
$"has {nameof(TextureUsage)}.{nameof(TextureUsage.Storage)}.");
}
break;
}
case ResourceKind.Sampler:
{
if (!(resource is Sampler s))
{
throw new VeldridException(
$"Resource in slot {slot} does not match {nameof(ResourceKind)}.{kind} specified in the {nameof(ResourceLayout)}. It must be a {nameof(Sampler)}.");
}
break;
}
default:
throw Illegal.Value <ResourceKind>();
}
}