@Override
 public void allocateFilterResources(GL2 gl) {
   OptionalInt shader = ShaderUtil.createFragmentShader(gl, createSource());
   if (shader.isPresent()) {
     linkedShader = shader.getAsInt();
     OptionalInt program = ShaderUtil.createSingleShaderProgram(gl, linkedShader);
     if (program.isPresent()) {
       linkedProgram = program.getAsInt();
     } else {
       ShaderUtil.deleteShaderProgram(gl, linkedProgram);
       linkedProgram = 0;
     }
   }
 }
    public ListenableFuture<?> partitionPage(Page page) {
      requireNonNull(page, "page is null");

      Page partitionFunctionArgs = getPartitionFunctionArguments(page);
      for (int position = 0; position < page.getPositionCount(); position++) {
        if (nullChannel.isPresent() && page.getBlock(nullChannel.getAsInt()).isNull(position)) {
          for (PageBuilder pageBuilder : pageBuilders) {
            pageBuilder.declarePosition();

            for (int channel = 0; channel < sourceTypes.size(); channel++) {
              Type type = sourceTypes.get(channel);
              type.appendTo(page.getBlock(channel), position, pageBuilder.getBlockBuilder(channel));
            }
          }
        } else {
          int partition = partitionFunction.getPartition(partitionFunctionArgs, position);

          PageBuilder pageBuilder = pageBuilders.get(partition);
          pageBuilder.declarePosition();

          for (int channel = 0; channel < sourceTypes.size(); channel++) {
            Type type = sourceTypes.get(channel);
            type.appendTo(page.getBlock(channel), position, pageBuilder.getBlockBuilder(channel));
          }
        }
      }
      return flush(false);
    }
Beispiel #3
0
  @Override
  protected DataBuffer encodeBespoke() {
    int size = 3 * Short.BYTES;
    for (Model model : Arrays.asList(primary, secondary)) {
      size += model.getId().isPresent() ? Short.BYTES : Byte.BYTES;
      size += model.getAnimation().isPresent() ? Short.BYTES : Byte.BYTES;
    }

    DataBuffer buffer = DataBuffer.allocate(size);
    for (OptionalInt optional :
        Arrays.asList(
            primary.getId(), secondary.getId(), primary.getAnimation(), secondary.getAnimation())) {
      if (optional.isPresent()) {
        int id = optional.getAsInt();
        buffer.putByte(id >> 8 + 1);
        buffer.putByte(id);
      } else {
        buffer.putBoolean(false);
      }
    }

    buffer.putShort(scale);
    buffer.putShort(pitch);
    buffer.putShort(roll);

    return buffer.flip().asReadOnlyBuffer();
  }
    public int partOne(Sample gift) {
      for (Map.Entry<Integer, Sample> entry : samples.entrySet()) {
        int sue = entry.getKey();
        Sample sample = entry.getValue();

        boolean found = true;

        for (String compound : gift.knownCompounds()) {
          OptionalInt optional = sample.amount(compound);

          if (!optional.isPresent()) {
            continue;
          }

          int knownAmount = optional.getAsInt();
          int actualAmount = gift.amount(compound).getAsInt();

          if (knownAmount != actualAmount) {
            found = false;
            break;
          }
        }

        if (found) {
          return sue;
        }
      }

      throw new IllegalArgumentException("Failed to find gift: " + gift + ".");
    }
Beispiel #5
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  public static void main(String... args) {

    List<Integer> numbers = Arrays.asList(3, 4, 5, 1, 2);

    Arrays.stream(numbers.toArray()).forEach(System.out::println);
    int calories = Dish.menu.stream().mapToInt(Dish::getCalories).sum();
    System.out.println("Number of calories:" + calories);

    // max and OptionalInt
    OptionalInt maxCalories = Dish.menu.stream().mapToInt(Dish::getCalories).max();

    int max;
    if (maxCalories.isPresent()) {
      max = maxCalories.getAsInt();
    } else {
      // we can choose a default value
      max = 1;
    }
    System.out.println(max);

    // numeric ranges
    IntStream evenNumbers = IntStream.rangeClosed(1, 100).filter(n -> n % 2 == 0);

    System.out.println(evenNumbers.count());

    Stream<int[]> pythagoreanTriples =
        IntStream.rangeClosed(1, 100)
            .boxed()
            .flatMap(
                a ->
                    IntStream.rangeClosed(a, 100)
                        .filter(b -> Math.sqrt(a * a + b * b) % 1 == 0)
                        .boxed()
                        .map(b -> new int[] {a, b, (int) Math.sqrt(a * a + b * b)}));

    pythagoreanTriples.forEach(t -> System.out.println(t[0] + ", " + t[1] + ", " + t[2]));
  }
 public static void main(String[] args) throws Exception {
   if (args.length < 2) {
     System.err.println("Ahem, I need at least 2 arguments please.");
     System.exit(1);
     return;
   }
   Pattern scalePat = Pattern.compile("-(?:-scale|s)(?:-(w|h))?=(\\d+)");
   @SuppressWarnings("unchecked")
   Predicate<String> isVerbose =
       (Predicate<String>) (Object) Predicate.isEqual("-v").or(Predicate.isEqual("--verbose"));
   boolean verbose = Stream.of(args).anyMatch(isVerbose);
   OptionalInt[] packed =
       Stream.of(args)
           .map(scalePat::matcher)
           .filter(Matcher::matches)
           .map(
               matcher -> {
                 OptionalInt[] ints = new OptionalInt[] {OptionalInt.empty(), OptionalInt.empty()};
                 OptionalInt scale = OptionalInt.of(Integer.parseInt(matcher.group(2)));
                 if (matcher.group(1) == null) {
                   ints[0] = ints[1] = scale;
                 } else {
                   if (matcher.group(1).equals("w")) {
                     ints[0] = scale;
                   } else {
                     ints[1] = scale;
                   }
                 }
                 return ints;
               })
           .reduce(
               new OptionalInt[] {OptionalInt.empty(), OptionalInt.empty()},
               (id, next) -> {
                 OptionalInt[] ints = new OptionalInt[2];
                 OptionalInt aID = id[0];
                 OptionalInt bID = id[1];
                 OptionalInt aNx = next[0];
                 OptionalInt bNx = next[1];
                 ints[0] = aNx.isPresent() ? aNx : aID;
                 ints[1] = bNx.isPresent() ? bNx : bID;
                 return ints;
               });
   int scaleWidth = packed[0].orElse(1);
   int scaleHeight = packed[1].orElse(1);
   Pattern lightPat = Pattern.compile("-(?:-light|l)=([dDbB]+)");
   List<Function<Color, Color>> lightChanges =
       Stream.of(args)
           .map(lightPat::matcher)
           .filter(Matcher::matches)
           .flatMap(
               m ->
                   m.group(1)
                       .chars()
                       .mapToObj(
                           c ->
                               c == 'd' || c == 'D'
                                   ? (Function<Color, Color>) Color::darker
                                   : (Function<Color, Color>) Color::brighter))
           .collect(Collectors.toList());
   args =
       Stream.of(args)
           .filter(isVerbose.or(scalePat.asPredicate()).or(lightPat.asPredicate()).negate())
           .toArray(String[]::new);
   Random r = new Random();
   int width = Integer.parseInt(args[0]);
   int height = Integer.parseInt(args[1]);
   String file = args.length > 2 ? args[2] : ":-";
   if (verbose) {
     System.err.println("Generating an image...");
   }
   byte[] pixels = new byte[width * height * 4];
   r.nextBytes(pixels);
   BufferedImage created = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
   for (int i = 0, index = 0; i < pixels.length; i += 4, index++) {
     int x = index % width;
     int y = index / width;
     Color color =
         new Color(
             ((/* 0x0F */ 0xFF) << 24)
                 | ((pixels[i + 1] & 0xFF) << 16)
                 | ((pixels[i + 2] & 0xFF) << 8)
                 | ((pixels[i + 3] & 0xFF)));
     for (Function<Color, Color> change : lightChanges) {
       color = change.apply(color);
     }
     created.setRGB(x, y, color.getRGB());
   }
   int scaledWidth = width * scaleWidth;
   int scaledHeight = height * scaleHeight;
   BufferedImage tmp = new BufferedImage(scaledWidth, scaledHeight, BufferedImage.TYPE_INT_ARGB);
   Graphics2D g = tmp.createGraphics();
   AffineTransform at = AffineTransform.getScaleInstance(scaleWidth, scaleHeight);
   g.drawRenderedImage(created, at);
   created = tmp;
   if (verbose) {
     System.err.println("Writing to file...");
   }
   ImageIO.write(
       created, "PNG", file.equals(":-") ? System.out : Files.newOutputStream(Paths.get(file)));
   if (verbose) {
     System.err.println("Complete...");
   }
 }
 @Override
 public String toJson(OptionalInt object) {
   return object.isPresent() ? String.valueOf(object.getAsInt()) : NULL;
 }