internal Effect(Shader shader)
{
Shader = shader;
ParameterData = new byte[Shader.ParametersSize];
EffectParameter[] parameters = new EffectParameter[Shader.Parameters.Count];
for (int i = 0; i < Shader.Parameters.Count; i++)
parameters[i] = new EffectParameter(this, Shader.Parameters[i]);
EffectPass[] passes = new EffectPass[Shader.Passes.Count];
for (int i = 0; i < Shader.Passes.Count; i++)
passes[i] = new EffectPass(this, Shader.Passes[i]);
Parameters = new EffectParameterCollection(parameters);
Passes = new EffectPassCollection(passes);
foreach (EffectParameter parameter in Parameters)
{
if (parameter.Class == EffectParameterClass.Sampler)
{
int count = parameter.Parameter.Count == 0 ? 1 : parameter.Parameter.Count;
int[] units = new int[count];
for (int i = 0; i < count; i++)
units[i] = parameter.Parameter.TextureUnit + i;
parameter.SetValue(count);
}
}
}
internal void Bind(GraphicsDevice graphicsDevice, IntPtr source)
{
if (_lastUsed == this && _lastUsedPointer == source && _lastUsedShader == graphicsDevice.ActiveShader)
return;
for (int i = 0; i < graphicsDevice.ActiveShader.Input.Length; i++)
{
VertexElement element = null;
ShaderInput input = graphicsDevice.ActiveShader.Input[i];
for (int j = 0; j < _vertexElements.Length; j++)
{
if (_vertexElements[j].VertexElementUsage == input.Usage && _vertexElements[j].UsageIndex == input.UsageIndex)
{
element = _vertexElements[j];
break;
}
}
if (element != null)
{
GL.EnableVertexAttribArray(input.Index);
GL.VertexAttribPointer(input.Index, element.ElementCount, element.VertexAttribPointerType, !element.IsNormalized, VertexStride, source + element.Offset);
}
else
{
GL.DisableVertexAttribArray(input.Index);
}
}
_lastUsed = this;
_lastUsedPointer = source;
_lastUsedShader = graphicsDevice.ActiveShader;
}
public static void ResetLastUsedCache()
{
_lastUsed = null;
_lastUsedPointer = IntPtr.Zero;
_lastUsedShader = null;
}