/// <summary>
/// Computes a hash <see cref="ObjectId"/> for the specified effect and compiler parameters.
/// </summary>
/// <param name="effectName">Name of the effect.</param>
/// <param name="compilerParameters">The compiler parameters.</param>
/// <returns>
/// EffectObjectIds.
/// </returns>
public static ObjectId Compute(string effectName, ShaderMixinParameters compilerParameters)
{
lock (generatorLock)
{
if (generator == null)
{
generator = new ShaderMixinObjectId();
}
return generator.ComputeInternal(effectName, compilerParameters);
}
}
/// <summary>
/// Computes a hash <see cref="ObjectId"/> for the specified mixin.
/// </summary>
/// <param name="mixin">The mixin.</param>
/// <param name="mixinParameters">The mixin parameters.</param>
/// <returns>EffectObjectIds.</returns>
public static ObjectId Compute(ShaderMixinSource mixin, ShaderMixinParameters mixinParameters)
{
lock (generatorLock)
{
if (generator == null)
{
generator = new ShaderMixinObjectId();
}
return generator.ComputeInternal(mixin, mixinParameters);
}
}
private unsafe ObjectId ComputeInternal(ShaderMixinSource mixin, ShaderMixinParameters mixinParameters)
{
// Write to memory stream
memStream.Position = 0;
writer.Write(EffectBytecode.MagicHeader); // Write the effect bytecode magic header
writer.Write(mixin);
parameters.Clear();
parameters.Set(CompilerParameters.GraphicsPlatformKey, mixinParameters.Get(CompilerParameters.GraphicsPlatformKey));
parameters.Set(CompilerParameters.GraphicsProfileKey, mixinParameters.Get(CompilerParameters.GraphicsProfileKey));
parameters.Set(CompilerParameters.DebugKey, mixinParameters.Get(CompilerParameters.DebugKey));
writer.Write(parameters);
// Compute hash
objectIdBuilder.Reset();
objectIdBuilder.Write((byte*)buffer, (int)memStream.Position);
return objectIdBuilder.ComputeHash();
}
private unsafe ObjectId ComputeInternal(ShaderMixinSource mixin, ShaderMixinParameters mixinParameters)
{
// Write to memory stream
memStream.Position = 0;
writer.Write(EffectBytecode.MagicHeader); // Write the effect bytecode magic header
writer.Write(mixin);
parameters.Clear();
parameters.Set(CompilerParameters.GraphicsPlatformKey, mixinParameters.Get(CompilerParameters.GraphicsPlatformKey));
parameters.Set(CompilerParameters.GraphicsProfileKey, mixinParameters.Get(CompilerParameters.GraphicsProfileKey));
parameters.Set(CompilerParameters.DebugKey, mixinParameters.Get(CompilerParameters.DebugKey));
writer.Write(parameters);
// Compute hash
objectIdBuilder.Reset();
objectIdBuilder.Write((byte *)buffer, (int)memStream.Position);
return(objectIdBuilder.ComputeHash());
}
/// <summary>
/// Generates a <see cref="ShaderMixinSourceTree"/> for the specified names and parameters.
/// </summary>
/// <param name="pdxfxEffectName">The name.</param>
/// <param name="properties">The properties.</param>
/// <param name="mainUsedParameters">The parameters when prcessing the mixin.</param>
/// <returns>The result of the mixin.</returns>
public static ShaderMixinSourceTree Generate(string pdxfxEffectName, ParameterCollection properties, out ShaderMixinParameters mainUsedParameters, out List <ShaderMixinParameters> usedParameters)
{
if (pdxfxEffectName == null)
{
throw new ArgumentNullException("pdxfxEffectName");
}
if (properties == null)
{
throw new ArgumentNullException("properties");
}
IShaderMixinBuilder builder;
Dictionary <string, IShaderMixinBuilder> builders;
lock (RegisteredBuilders)
{
if (!TryGet(pdxfxEffectName, out builder))
{
throw new ArgumentException(string.Format("Pdxfx effect [{0}] not found", pdxfxEffectName), "pdxfxEffectName");
}
builders = new Dictionary <string, IShaderMixinBuilder>(RegisteredBuilders);
}
var context = new ShaderMixinContext(properties, builders, pdxfxEffectName);
var mixinTree = new ShaderMixinSourceTree()
{
Name = pdxfxEffectName
};
builder.Generate(mixinTree, context);
mainUsedParameters = context.GetMainUsedParameters();
usedParameters = context.GetUsedParameters();
return(mixinTree);
}
private unsafe ObjectId ComputeInternal(string effectName, ShaderMixinParameters compilerParameters)
{
// Write to memory stream
memStream.Position = 0;
writer.Write(EffectBytecode.MagicHeader); // Write the effect bytecode magic header
writer.Write(effectName);
writer.Write(compilerParameters);
// Compute hash
objectIdBuilder.Reset();
objectIdBuilder.Write((byte*)buffer, (int)memStream.Position);
return objectIdBuilder.ComputeHash();
}
