Examples of com.badlogic.gdx.graphics.g2d.PixmapPacker

com.badlogic.gdx.graphics.g2d.PixmapPacker

512 pixel pages, RGB565 format, 2 pixels of padding, border duplication PixmapPacker packer = new PixmapPacker(512, 512, Format.RGB565, 2, true); packer.pack("First Pixmap", pixmap1); packer.pack("Second Pixmap", pixmap2); TextureAtlas altas = packer.generateTextureAtlas(TextureFilter.Nearest, TextureFilter.Nearest); Note that you should not dispose the packer in this usage pattern. Instead, dispose the TextureAtlas if no longer needed. Incremental usage:

 // 512x512 pixel pages, RGB565 format, 2 pixels of padding, no border duplication PixmapPacker packer = new PixmapPacker(512, 512, Format.RGB565, 2, false); TextureAtlas incrementalAtlas = new TextureAtlas(); // potentially on a separate thread, e.g. downloading thumbnails packer.pack("thumbnail", thumbnail); // on the rendering thread, every frame packer.updateTextureAtlas(incrementalAtlas, TextureFilter.Linear, TextureFilter.Linear); // once the atlas is no longer needed, make sure you get the final additions. This might // be more elaborate depending on your threading model. packer.updateTextureAtlas(incrementalAtlas, TextureFilter.Linear, TextureFilter.Linear); incrementalAtlas.dispose();

Pixmap-only usage:

 PixmapPacker packer = new PixmapPacker(512, 512, Format.RGB565, 2, true); packer.pack("First Pixmap", pixmap1); packer.pack("Second Pixmap", pixmap2); // do something interesting with the resulting pages for (Page page : packer.getPages()) { } // dispose of the packer in this case packer.dispose();

      data.down = -data.down;
    }


    boolean ownsAtlas = false;


    PixmapPacker packer = parameter.packer;


    if (packer == null) {
      // generate the glyphs
      int maxGlyphHeight = (int)Math.ceil(data.lineHeight);
      int pageWidth = MathUtils
        .nextPowerOfTwo((int)Math.sqrt(maxGlyphHeight * maxGlyphHeight * parameter.characters.length()));


      if (maxTextureSize > 0) pageWidth = Math.min(pageWidth, maxTextureSize);


      ownsAtlas = true;
      packer = new PixmapPacker(pageWidth, pageWidth, Format.RGBA8888, 2, false);
    }


    // to minimize collisions we'll use this format : pathWithoutExtension_size[_flip]_glyph
    String packPrefix = ownsAtlas ? "" : (filePath + '_' + parameter.size + (parameter.flip ? "_flip_" : '_'));


    for (int i = 0; i < parameter.characters.length(); i++) {
      char c = parameter.characters.charAt(i);
      if (!FreeType.loadChar(face, c, FreeType.FT_LOAD_DEFAULT)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't load char '" + c + "'");
        continue;
      }
      if (!FreeType.renderGlyph(face.getGlyph(), FreeType.FT_RENDER_MODE_NORMAL)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't render char '" + c + "'");
        continue;
      }
      GlyphSlot slot = face.getGlyph();
      GlyphMetrics metrics = slot.getMetrics();
      Bitmap bitmap = slot.getBitmap();
      Pixmap pixmap = bitmap.getPixmap(Format.RGBA8888);
      Glyph glyph = new Glyph();
      glyph.id = (int)c;
      glyph.width = pixmap.getWidth();
      glyph.height = pixmap.getHeight();
      glyph.xoffset = slot.getBitmapLeft();
      glyph.yoffset = parameter.flip ? -slot.getBitmapTop() + (int)baseLine : -(glyph.height - slot.getBitmapTop())
        - (int)baseLine;
      glyph.xadvance = FreeType.toInt(metrics.getHoriAdvance());


      if (bitmapped) {
        pixmap.setColor(Color.CLEAR);
        pixmap.fill();
        ByteBuffer buf = bitmap.getBuffer();
        for (int h = 0; h < glyph.height; h++) {
          int idx = h * bitmap.getPitch();
          for (int w = 0; w < (glyph.width + glyph.xoffset); w++) {
            int bit = (buf.get(idx + (w / 8)) >>> (7 - (w % 8))) & 1;
            pixmap.drawPixel(w, h, ((bit == 1) ? Color.WHITE.toIntBits() : Color.CLEAR.toIntBits()));
          }
        }


      }


      String name = packPrefix + c;
      Rectangle rect = packer.pack(name, pixmap);


      // determine which page it was packed into
      int pIndex = packer.getPageIndex(name);
      if (pIndex == -1) // we should not get here
        throw new IllegalStateException("packer was not able to insert '" + name + "' into a page");


      glyph.page = pIndex;
      glyph.srcX = (int)rect.x;
      glyph.srcY = (int)rect.y;


      data.setGlyph(c, glyph);
      pixmap.dispose();
    }


    // generate kerning
    for (int i = 0; i < parameter.characters.length(); i++) {
      for (int j = 0; j < parameter.characters.length(); j++) {
        char firstChar = parameter.characters.charAt(i);
        Glyph first = data.getGlyph(firstChar);
        if (first == null) continue;
        char secondChar = parameter.characters.charAt(j);
        Glyph second = data.getGlyph(secondChar);
        if (second == null) continue;
        int kerning = FreeType.getKerning(face, FreeType.getCharIndex(face, firstChar),
          FreeType.getCharIndex(face, secondChar), 0);
        if (kerning == 0) continue;
        first.setKerning(secondChar, FreeType.toInt(kerning));
      }
    }


    if (ownsAtlas) {
      Array<Page> pages = packer.getPages();
      data.regions = new TextureRegion[pages.size];


      for (int i = 0; i < pages.size; i++) {
        Page p = pages.get(i);

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     * @param fileName
     * @param parameter
     */
    @Override
    public SpritePack loadSync(AssetManager manager, String fileName, SpritePackParameter parameter) {
        PixmapPacker pixmapPacker = new PixmapPacker(512, 512, Pixmap.Format.RGBA8888, 1, true);
        for(FileHandle file : files) {
            Pixmap pixmap = manager.get(file.path(), Pixmap.class);
            pixmapPacker.pack(file.nameWithoutExtension(), pixmap);
        }
        return new SpritePack(pixmapPacker.generateTextureAtlas(Texture.TextureFilter.Nearest,
                                                                Texture.TextureFilter.Nearest,
                                                                false));
    }

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      if (maxTextureSize > 0)
        pageWidth = Math.min(pageWidth, maxTextureSize);


      ownsAtlas = true;
      packer = new PixmapPacker(pageWidth, pageWidth, Format.RGBA8888, 2, false);
    }


    //to minimize collisions we'll use this format : pathWithoutExtension_size[_flip]_glyph
    String packPrefix = ownsAtlas ? "" : (filePath + '_' + size + (flip ? "_flip_" : '_') );

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      data.down = -data.down;
    }


    boolean ownsAtlas = false;


    PixmapPacker packer = parameter.packer;


    if (packer == null) {
      // generate the glyphs
      int maxGlyphHeight = (int)Math.ceil(data.lineHeight);
      int pageWidth = MathUtils
        .nextPowerOfTwo((int)Math.sqrt(maxGlyphHeight * maxGlyphHeight * parameter.characters.length()));


      if (maxTextureSize > 0) pageWidth = Math.min(pageWidth, maxTextureSize);


      ownsAtlas = true;
      packer = new PixmapPacker(pageWidth, pageWidth, Format.RGBA8888, 2, false);
    }


    // to minimize collisions we'll use this format : pathWithoutExtension_size[_flip]_glyph
    String packPrefix = ownsAtlas ? "" : (filePath + '_' + parameter.size + (parameter.flip ? "_flip_" : '_'));


    for (int i = 0; i < parameter.characters.length(); i++) {
      char c = parameter.characters.charAt(i);
      if (!FreeType.loadChar(face, c, FreeType.FT_LOAD_DEFAULT)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't load char '" + c + "'");
        continue;
      }
      if (!FreeType.renderGlyph(face.getGlyph(), FreeType.FT_RENDER_MODE_NORMAL)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't render char '" + c + "'");
        continue;
      }
      GlyphSlot slot = face.getGlyph();
      GlyphMetrics metrics = slot.getMetrics();
      Bitmap bitmap = slot.getBitmap();
      Pixmap pixmap = bitmap.getPixmap(Format.RGBA8888);
      Glyph glyph = new Glyph();
      glyph.id = (int)c;
      glyph.width = pixmap.getWidth();
      glyph.height = pixmap.getHeight();
      glyph.xoffset = slot.getBitmapLeft();
      glyph.yoffset = parameter.flip ? -slot.getBitmapTop() + (int)baseLine : -(glyph.height - slot.getBitmapTop())
        - (int)baseLine;
      glyph.xadvance = FreeType.toInt(metrics.getHoriAdvance());


      if (bitmapped) {
        pixmap.setColor(Color.CLEAR);
        pixmap.fill();
        ByteBuffer buf = bitmap.getBuffer();
        for (int h = 0; h < glyph.height; h++) {
          int idx = h * bitmap.getPitch();
          for (int w = 0; w < (glyph.width + glyph.xoffset); w++) {
            int bit = (buf.get(idx + (w / 8)) >>> (7 - (w % 8))) & 1;
            pixmap.drawPixel(w, h, ((bit == 1) ? Color.WHITE.toIntBits() : Color.CLEAR.toIntBits()));
          }
        }


      }


      String name = packPrefix + c;
      Rectangle rect = packer.pack(name, pixmap);


      // determine which page it was packed into
      int pIndex = packer.getPageIndex(name);
      if (pIndex == -1) // we should not get here
        throw new IllegalStateException("packer was not able to insert '" + name + "' into a page");


      glyph.page = pIndex;
      glyph.srcX = (int)rect.x;
      glyph.srcY = (int)rect.y;


      data.setGlyph(c, glyph);
      pixmap.dispose();
    }


    // generate kerning
    for (int i = 0; i < parameter.characters.length(); i++) {
      for (int j = 0; j < parameter.characters.length(); j++) {
        char firstChar = parameter.characters.charAt(i);
        Glyph first = data.getGlyph(firstChar);
        if (first == null) continue;
        char secondChar = parameter.characters.charAt(j);
        Glyph second = data.getGlyph(secondChar);
        if (second == null) continue;
        int kerning = FreeType.getKerning(face, FreeType.getCharIndex(face, firstChar),
          FreeType.getCharIndex(face, secondChar), 0);
        if (kerning == 0) continue;
        first.setKerning(secondChar, FreeType.toInt(kerning));
      }
    }


    if (ownsAtlas) {
      Array<Page> pages = packer.getPages();
      data.regions = new TextureRegion[pages.size];


      for (int i = 0; i < pages.size; i++) {
        Page p = pages.get(i);

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      data.down = -data.down;
    }


    boolean ownsAtlas = false;


    PixmapPacker packer = parameter.packer;


    if (packer == null) {
      // generate the glyphs
      int maxGlyphHeight = (int)Math.ceil(data.lineHeight);
      int pageWidth = MathUtils
        .nextPowerOfTwo((int)Math.sqrt(maxGlyphHeight * maxGlyphHeight * parameter.characters.length()));


      if (maxTextureSize > 0) pageWidth = Math.min(pageWidth, maxTextureSize);


      ownsAtlas = true;
      packer = new PixmapPacker(pageWidth, pageWidth, Format.RGBA8888, 2, false);
    }


    // to minimize collisions we'll use this format : pathWithoutExtension_size[_flip]_glyph
    String packPrefix = ownsAtlas ? "" : (filePath + '_' + parameter.size + (parameter.flip ? "_flip_" : '_'));


    for (int i = 0; i < parameter.characters.length(); i++) {
      char c = parameter.characters.charAt(i);
      if (!FreeType.loadChar(face, c, FreeType.FT_LOAD_DEFAULT)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't load char '" + c + "'");
        continue;
      }
      if (!FreeType.renderGlyph(face.getGlyph(), FreeType.FT_RENDER_MODE_NORMAL)) {
        Gdx.app.log("FreeTypeFontGenerator", "Couldn't render char '" + c + "'");
        continue;
      }
      GlyphSlot slot = face.getGlyph();
      GlyphMetrics metrics = slot.getMetrics();
      Bitmap bitmap = slot.getBitmap();
      Pixmap pixmap = bitmap.getPixmap(Format.RGBA8888);
      Glyph glyph = new Glyph();
      glyph.id = (int)c;
      glyph.width = pixmap.getWidth();
      glyph.height = pixmap.getHeight();
      glyph.xoffset = slot.getBitmapLeft();
      glyph.yoffset = parameter.flip ? -slot.getBitmapTop() + (int)baseLine : -(glyph.height - slot.getBitmapTop())
        - (int)baseLine;
      glyph.xadvance = FreeType.toInt(metrics.getHoriAdvance());


      if (bitmapped) {
        pixmap.setColor(Color.CLEAR);
        pixmap.fill();
        ByteBuffer buf = bitmap.getBuffer();
        for (int h = 0; h < glyph.height; h++) {
          int idx = h * bitmap.getPitch();
          for (int w = 0; w < (glyph.width + glyph.xoffset); w++) {
            int bit = (buf.get(idx + (w / 8)) >>> (7 - (w % 8))) & 1;
            pixmap.drawPixel(w, h, ((bit == 1) ? Color.WHITE.toIntBits() : Color.CLEAR.toIntBits()));
          }
        }


      }


      String name = packPrefix + c;
      Rectangle rect = packer.pack(name, pixmap);


      // determine which page it was packed into
      int pIndex = packer.getPageIndex(name);
      if (pIndex == -1) // we should not get here
        throw new IllegalStateException("packer was not able to insert '" + name + "' into a page");


      glyph.page = pIndex;
      glyph.srcX = (int)rect.x;
      glyph.srcY = (int)rect.y;


      data.setGlyph(c, glyph);
      pixmap.dispose();
    }


    // generate kerning
    if (parameter.kerning) {
      for (int i = 0; i < parameter.characters.length(); i++) {
        for (int j = 0; j < parameter.characters.length(); j++) {
          char firstChar = parameter.characters.charAt(i);
          Glyph first = data.getGlyph(firstChar);
          if (first == null) continue;
          char secondChar = parameter.characters.charAt(j);
          Glyph second = data.getGlyph(secondChar);
          if (second == null) continue;
          int kerning = FreeType.getKerning(face, FreeType.getCharIndex(face, firstChar),
            FreeType.getCharIndex(face, secondChar), 0);
          if (kerning == 0) continue;
          first.setKerning(secondChar, FreeType.toInt(kerning));
        }
      }
    }
    if (ownsAtlas) {
      Array<Page> pages = packer.getPages();
      data.regions = new TextureRegion[pages.size];


      for (int i = 0; i < pages.size; i++) {
        Page p = pages.get(i);

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Related Classes of com.badlogic.gdx.graphics.g2d.PixmapPacker

com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator

com.badlogic.gdx.graphics.g2d.TextureAtlas

com.badlogic.gdx.graphics.g2d.TextureRegion

com.badlogic.gdx.graphics.Pixmap

com.badlogic.gdx.graphics.Pixmap.Blending

com.badlogic.gdx.graphics.Texture

com.badlogic.gdx.math.Rectangle

com.thedeadpixelsociety.twodee.core.assets.SpritePackLoader

com.badlogic.gdx.utils.GdxRuntimeException

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