/// <summary>
/// Creates a new instance of the shader bundle.
/// </summary>
/// <param name="hostProgram">Host program with all the shader stages</param>
/// <param name="specializationState">GPU state used to create this version of the shader</param>
/// <param name="shaders">Shaders</param>
public CachedShaderProgram(IProgram hostProgram, ShaderSpecializationState specializationState, params CachedShaderStage[] shaders)
{
HostProgram = hostProgram;
SpecializationState = specializationState;
Shaders = shaders;
SpecializationState.Prepare(shaders);
}
/// <summary>
/// Reads shader specialization state that has been serialized.
/// </summary>
/// <param name="dataReader">Data reader</param>
/// <returns>Shader specialization state</returns>
public static ShaderSpecializationState Read(ref BinarySerializer dataReader)
{
ShaderSpecializationState specState = new ShaderSpecializationState();
dataReader.Read(ref specState._queriedState);
dataReader.Read(ref specState._compute);
if (specState._compute)
{
dataReader.ReadWithMagicAndSize(ref specState.ComputeState, ComsMagic);
}
else
{
dataReader.ReadWithMagicAndSize(ref specState.GraphicsState, GfxsMagic);
}
dataReader.Read(ref specState._constantBufferUsePerStage);
int constantBufferUsePerStageMask = specState._constantBufferUsePerStage;
while (constantBufferUsePerStageMask != 0)
{
int index = BitOperations.TrailingZeroCount(constantBufferUsePerStageMask);
dataReader.Read(ref specState.ConstantBufferUse[index]);
constantBufferUsePerStageMask &= ~(1 << index);
}
if (specState._queriedState.HasFlag(QueriedStateFlags.TransformFeedback))
{
ushort tfCount = 0;
dataReader.Read(ref tfCount);
specState.TransformFeedbackDescriptors = new TransformFeedbackDescriptor[tfCount];
for (int index = 0; index < tfCount; index++)
{
dataReader.ReadWithMagicAndSize(ref specState.TransformFeedbackDescriptors[index], TfbdMagic);
}
}
ushort count = 0;
dataReader.Read(ref count);
for (int index = 0; index < count; index++)
{
TextureKey textureKey = default;
Box <TextureSpecializationState> textureState = new Box <TextureSpecializationState>();
dataReader.ReadWithMagicAndSize(ref textureKey, TexkMagic);
dataReader.ReadWithMagicAndSize(ref textureState.Value, TexsMagic);
specState._textureSpecialization[textureKey] = textureState;
}
return(specState);
}
