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GetPixelArea(MATRIX) - get dmx matrix
MATRIX[heigth][width]=R*32+G*4+B -transform data for fixture RRRGGGBB
DrawPixelArea(MATRIX) - write dmx data screen

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@scriptname="video palette fixture";
@author="dieter";
@version="MADRIX 2.8";
@description="main out macro, special for video palette fixture";

int H=0,W=0,R,G,B,C=0;
color MATRIX[][];// data of matrix
color CHANNELS[];// dmx channels
int LEN;// value for length of channels

void InitEffect(){
	W=GetMatrixWidth(); // get current matrix size
	H=GetMatrixHeight();// get current matrix size
	C=GetColorDepth();  // get current color depth
	if(C!=3)// I have only testing with generic RGB fixture
		WriteText("I have not testing with different colordepth not equal 3");
}

void PreRenderEffect(){
}

void PostRenderEffect()
{
	GetPixelArea(MATRIX,0,0,W,H);// get color values of matrix
	for(int w=0;w<W;w++){
		for(int h=0;h<H;h++){
			CHANNELS[h*W+w]=MATRIX[w][h];}} // transform matrix to an array

	// render new DMX value to array, use RGB and build user define DMX value
	LEN= CHANNELS.length;
	for(int i=0;i<LEN;i++){
  		 	 R=CHANNELS[i].r/32;
		 	 G=CHANNELS[i].g/32;
		 	 B=CHANNELS[i].b/64;
			 switch(i%C){// summary RGB to 1 channel color palette
				// switch pallete to single channel
				case 0:CHANNELS[i/C].r=R*32+G*4+B;break;// RRRGGGBB
				case 1:CHANNELS[i/C].g=R*32+G*4+B;break;// RRRGGGBB
				case 2:CHANNELS[i/C].b=R*32+G*4+B;break;// RRRGGGBB
				case 3:CHANNELS[i/C].w=R*32+G*4+B;break;// RRRGGGBB
				}}
	 
	for(int i=LEN/C;i<LEN;i++)// unused channels set to black
		CHANNELS[i]=BLACK;         			

	for(int w=0;w<W;w++){
		for(int h=0;h<H;h++){
			MATRIX[w][h]=CHANNELS[h*W+w];}} // retransform  array to matrix

	DrawPixelArea(MATRIX);// write values back to matrix
}

void MatrixSizeChanged(){
	InitEffect();
}