protected override void DrawChild(DisplayObject d, SpriteBatch batch)
{
shaderEffect = shaderMap.ContainsKey(d.DepthGroup) ? shaderMap[d.DepthGroup] : defaultShader;
if (shaderEffect != lastShader)
{
//if (lastShader != null)
//{
// lastShader.End(batch);
//}
batch.End();
lastShader = shaderEffect;
if (shaderEffect != null)
{
shaderEffect.Begin(batch);
shaderEffect = null;
}
else
{
batch.Begin(
SpriteSortMode.Deferred,
BlendState.AlphaBlend, //BlendState.NonPremultiplied,
null, //SamplerState.AnisotropicClamp,
null, //DepthStencilState.None,
null, //RasterizerState.CullNone,
null,
Stage.SpriteBatchMatrix);
}
}
base.DrawChild(d, batch);
}
private void SetAttributes()
{
System.Reflection.MemberInfo inf = this.GetType();
System.Attribute[] attrs = System.Attribute.GetCustomAttributes(inf); // reflection
foreach (System.Attribute attr in attrs)
{
if (attr is ScreenAttribute)
{
ScreenAttribute sa = (ScreenAttribute)attr;
if (sa.backgroundColor != 0x000000)
{
this.color = new Color(
((sa.backgroundColor & 0xFF0000) >> 16) / 255f,
((sa.backgroundColor & 0x00FF00) >> 8) / 255f,
((sa.backgroundColor & 0x0000FF) >> 0) / 255f);
}
if (sa.depthGroup != 0)
{
DepthGroup = sa.depthGroup;
}
if (sa.isPersistantScreen != false)
{
isPersistantScreen = sa.isPersistantScreen;
}
}
if (attr is V2DShaderAttribute)
{
V2DShaderAttribute sa = (V2DShaderAttribute)attr;
float[] parameters = new float[] { };
ConstructorInfo ci = sa.shaderType.GetConstructor(new Type[] { parameters.GetType() });
this.defaultShader = (V2DShader)ci.Invoke(
new object[]
{
new float[]{sa.param0, sa.param1, sa.param2, sa.param3, sa.param4}
});
}
}
}
public override void Draw(SpriteBatch batch)
{
if (defaultShader != null)
{
defaultShader.Begin(batch);
}
else
{
batch.Begin(
SpriteSortMode.Deferred,
BlendState.AlphaBlend, //BlendState.NonPremultiplied,
null, //SamplerState.AnisotropicClamp,
null, //DepthStencilState.None,
null, //RasterizerState.CullNone,
null,
Stage.SpriteBatchMatrix);
}
base.Draw(batch);
// this needs to happen for screen (class) level shaders (vs depth group shaders)
if (lastShader != null)
{
lastShader.End(batch);
lastShader = null;
}
else if (defaultShader != null)
{
defaultShader.End(batch);
}
else
{
batch.End();
}
}