public ShaderCompiler.Operand[] Compile(ShaderCompiler compiler, ShaderCompiler.Operand[] operands, FixedShaderParameters parameters, ref SharpMedia.Graphics.Shaders.Operations.DualShareContext shareContext)
{
// We obtain interfaces (CPU resolve).
object[] interfaces = InterfaceHelper.ResolveInterfaceArray(inputs[4], parameters);
// We first register all our "constants" (for fill IDs).
ShaderCompiler.Operand[] integerConstants = new ShaderCompiler.Operand[interfaces.Length];
for (int i = 0; i < integerConstants.Length; i++)
{
integerConstants[i] = compiler.CreateFixed(PinFormat.Integer, Pin.NotArray, i);
}
// We pack out "attributes".
ShaderCompiler.Operand[] attributes = new ShaderCompiler.Operand[] { operands[2] };
// We create output colour constant.
ShaderCompiler.Operand outColour = compiler.CreateTemporary(PinFormat.Floatx4, Pin.NotArray);
// We switch
compiler.BeginSwitch(operands[3]);
// We go through all interfaces.
for (int i = 0; i < interfaces.Length; i++)
{
compiler.BeginCase(integerConstants[i]);
// We cast to fill.
IFill fill = interfaces[i] as IFill;
ShaderCompiler.Operand[] constants =
InterfaceHelper.RegisterInterfaceConstants(compiler,
string.Format("Fills[{0}]", i), parameters, fill);
fill.Compile(compiler, operands[0], operands[1], attributes, null, constants, outColour);
compiler.EndCase();
}
// We also add "default" handler.
compiler.BeginDefault();
compiler.Mov(compiler.CreateFixed(PinFormat.Floatx4, Pin.NotArray, new Math.Vector4f(1.0f, 0.0f, 0.0f, 1.0f)),
outColour);
compiler.EndCase();
// And end switch.
compiler.EndSwitch();
return(new ShaderCompiler.Operand[] { outColour });
}
public void Compile(ShaderCompiler compiler, ShaderCompiler.Operand position,
ShaderCompiler.Operand texCoord, ShaderCompiler.Operand[] attributes,
ShaderCompiler.Operand borderDistance, ShaderCompiler.Operand[] constants,
ShaderCompiler.Operand outputColour)
{
// 1) We copy attributes.
ShaderCompiler.Operand[] att1 = new ShaderCompiler.Operand[fill1.CustomAttributeCount];
ShaderCompiler.Operand[] att2 = new ShaderCompiler.Operand[fill2.CustomAttributeCount];
for (int i = 0; i < att1.Length; i++)
{
att1[i] = attributes[i];
}
for (int i = 0; i < att2.Length; i++)
{
att2[i] = attributes[i + att1.Length];
}
// 2) We copy constants.
ShaderCompiler.Operand[] const1 = new ShaderCompiler.Operand[fill1.AdditionalParameters.Length];
ShaderCompiler.Operand[] const2 = new ShaderCompiler.Operand[fill2.AdditionalParameters.Length];
for (int i = 0; i < const1.Length; i++)
{
const1[i] = constants[i];
}
for (int i = 0; i < const2.Length; i++)
{
const2[i] = constants[i + const1.Length];
}
// 3) We compute partial colours.
ShaderCompiler.Operand colour1 = compiler.CreateTemporary(PinFormat.Floatx4, Pin.NotArray);
ShaderCompiler.Operand colour2 = compiler.CreateTemporary(PinFormat.Floatx4, Pin.NotArray);
fill1.Compile(compiler, position, texCoord, att1, borderDistance, const1, colour1);
fill2.Compile(compiler, position, texCoord, att2, borderDistance, const2, colour2);
// 4) We combine them.
compiler.Mov(compiler.Add(compiler.Mul(compiler.Sub(compiler.CreateFixed(PinFormat.Float,
Pin.NotArray, 1.0f), constants[constants.Length - 1]), colour1),
compiler.Mul(constants[constants.Length - 1], colour2)), outputColour);
}