package tv.porst.swfretools.parser.structures;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseFlag;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseFloat;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseUBits;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseUINT8;
import java.util.ArrayList;
import java.util.List;
import tv.porst.splib.binaryparser.Flag;
import tv.porst.splib.binaryparser.Float32;
import tv.porst.splib.binaryparser.UBits;
import tv.porst.splib.binaryparser.UINT8;
import tv.porst.swfretools.parser.SWFBinaryParser;
import tv.porst.swfretools.parser.SWFParserException;
/**
* Parses ConvolutionFilter structures.
*
* @author sp
*/
public final class ConvolutionFilterParser {
/**
* Parses a ConvolutionFilter structure.
*
* @param parser The parser that parses the structure.
* @param fieldName The name of the structure in the parent structure.
*
* @return The parsed structure.
*
* @throws SWFParserException Thrown if the structure could not be parsed.
*/
public static ConvolutionFilter parse(final SWFBinaryParser parser, final String fieldName) throws SWFParserException {
final UINT8 matrixX = parseUINT8(parser, 0x00006, fieldName + "::MatrixX");
final UINT8 matrixY = parseUINT8(parser, 0x00006, fieldName + "::MatrixY");
final Float32 divisor = parseFloat(parser, 0x00006, fieldName + "::Divisor");
final Float32 bias = parseFloat(parser, 0x00006, fieldName + "::Bias");
final List<Float32> matrix = new ArrayList<Float32>();
for (int i=0;i<matrixX.value() * matrixY.value();i++) {
matrix.add(parseFloat(parser, 0x00006, String.format(fieldName + "::Matrix[%d]", i)));
}
final RGBA defaultColor = RGBAParser.parse(parser, fieldName + "::DefaultColor");
final UBits reserved = parseUBits(parser, 6, 0x00006, fieldName + "Reserved");
final Flag clamp = parseFlag(parser, 0x00006, fieldName + "::Clamp");
final Flag preserveAlpha = parseFlag(parser, 0x00006, fieldName + "::PreserveAlpha");
return new ConvolutionFilter(matrixX, matrixY, divisor, bias, new Float32List(matrix), defaultColor, reserved, clamp, preserveAlpha);
}
}