Java Code Examples for com.badlogic.gdx.graphics.Pixmap#getWidth()

public static Pixmap toWhite(Pixmap img) {
    Pixmap alpha = new Pixmap(img.getWidth(), img.getHeight(), Format.RGBA8888);        
    //alpha.drawPixmap(img, 0, 0);
        
    int width = alpha.getWidth();
    int height = alpha.getHeight();
            
    //alpha.setColor(0xff00009f);
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            int col = img.getPixel(x, y);
            Color color = new Color(col);
            if ( color.a > 0.2f ) {
                alpha.drawPixel(x, y, Color.WHITE.toIntBits());
            }
        }
    }
    
    img.dispose();
    
    return alpha;
}
 

public static int getPixelMirrored(Pixmap pixmap, int x, int y, Mirror mirror) {
	int widthMinusOne = pixmap.getWidth() - 1;
	int heightMinusOne = pixmap.getHeight() - 1;

	int px = x, py = y;

	if (mirror == Mirror.X || mirror == Mirror.XY) {
		px = widthMinusOne - x;
	}

	if (mirror == Mirror.Y || mirror == Mirror.XY) {
		py = heightMinusOne - y;
	}

	return pixmap.getPixel(px, py);
}
 

private void paint() {
    Terrain terrain = terrainAsset.getTerrain();
    SplatMap sm = terrain.getTerrainTexture().getSplatmap();
    if (sm == null) return;

    Vector3 terrainPos = terrain.getPosition(tVec1);
    final float splatX = ((brushPos.x - terrainPos.x) / (float) terrain.terrainWidth) * sm.getWidth();
    final float splatY = ((brushPos.z - terrainPos.z) / (float) terrain.terrainDepth) * sm.getHeight();
    final float splatRad = (radius / terrain.terrainWidth) * sm.getWidth();
    final Pixmap pixmap = sm.getPixmap();

    for (int smX = 0; smX < pixmap.getWidth(); smX++) {
        for (int smY = 0; smY < pixmap.getHeight(); smY++) {
            final float dst = MathUtils.dst(splatX, splatY, smX, smY);
            if (dst <= splatRad) {
                final float opacity = getValueOfBrushPixmap(splatX, splatY, smX, smY, splatRad) * 0.5f * strength;
                int newPixelColor = sm.additiveBlend(pixmap.getPixel(smX, smY), paintChannel, opacity);
                pixmap.drawPixel(smX, smY, newPixelColor);
            }
        }
    }

    sm.updateTexture();
    splatmapModified = true;
    getProjectManager().current().assetManager.addDirtyAsset(terrainAsset);
}
 

public BitmapFilm( Pixmap bitmap, int width, int height ) {
	this.bitmap = bitmap;
	int cols = bitmap.getWidth() / width;
	int rows = bitmap.getHeight() / height;
	for (int i=0; i < rows; i++) {
		for (int j=0; j < cols; j++) {
			Rect rect = new Rect( j * width, i * height, (j+1) * width, (i+1) * height );
			add( i * cols + j, rect );
		}
	}
}
 

private static void pixmapToDouble(Pixmap in, double[][] out) {
  Color c = new Color();
  for (int x = 0; x < in.getWidth(); x++) {
    for (int y = 0; y < in.getHeight(); y++) {
      c.set(in.getPixel(x, y));
      out[x][y] = c.r;
    }
  }
}
 

private static void doubleToPixmap(double[][] in, Pixmap out) {
  Color c = new Color(0, 0, 0, 1);
  for (int x = 0; x < out.getWidth(); x++) {
    for (int y = 0; y < out.getHeight(); y++) {
      float d = (float) in[x][y];
      c.r = d;
      c.g = d;
      c.b = d;
      c.clamp();
      out.drawPixel(x, y, Color.rgba8888(c));
    }
  }
}
 

public static void copyToMirrored(Pixmap source, Pixmap target, Mirror mirror){
	for(int y=0; y<target.getHeight(); y++){
		for(int x=0; x<target.getWidth(); x++){
			int rgba = PixmapTransform.getPixelMirrored(source, x, y, mirror);
			target.drawPixel(x, y, rgba);
		}
	}
}
 

/**
 *
 * @param file 8-bit PNG file heightmap data
 * @param heightScale vertical scaling (y axis)
 * @param widthScale width on the x-z plane (distance between points)
 * @param whiteHigh height is represented by white (instead of black)
 */
public HeightMap(FileHandle file, float heightScale, float widthScale, boolean whiteHigh, int smoothingPasses) {
	// TODO whiteHigh seems to breaking the normals
	this.heightScale = heightScale;
	this.widthScale = widthScale;

	Pixmap pix = new Pixmap(file);
	if (pix.getFormat() != Pixmap.Format.Alpha) {
		throw new GdxRuntimeException("Pixmap must be format Pixmap.Alpha (8-bit Grayscale), not: " + pix.getFormat());
	}
	int pixWidth = pix.getWidth();
	int pixHeight = pix.getHeight();
	int w = pixWidth;
	int h = pixHeight;
	System.out.println("w,h: " + w + ", " + h);
	heights = new float[h][w];

	boolean countWidth = true;
	for (int z = 0; z < pixHeight; z ++) {
		depth++;
		for (int x = 0; x < pixWidth; x ++) {
			if (countWidth) width++;
			//System.out.printf("pix value: (%d, %d): %d\n", x, z,  pix.getPixel(x, z));
			int height;
			if (whiteHigh) {
				height = 256 - (-1 * pix.getPixel(x, z));
			} else {
				height = -1 * pix.getPixel(x, z);
			}
			heights[z][x] = height;
			numPoints++;
		}
		countWidth = false;
	}
	smoothVertexPositions(smoothingPasses);
	updateDimensions();
}
 

public SmartTexture( Pixmap bitmap, int filtering, int wrapping ) {

		this.bitmap = bitmap;
		width = bitmap.getWidth();
		height = bitmap.getHeight();
		this.fModeMin = this.fModeMax = filtering;
		this.wModeH = this.wModeV = wrapping;

	}
 

public static void copyToRotated(Pixmap source, Pixmap target, Rotate rotate){
	for(int y=0; y<target.getHeight(); y++){
		for(int x=0; x<target.getWidth(); x++){
			int rgba = PixmapTransform.getPixelRotated(source, x, y, rotate);
			target.drawPixel(x, y, rgba);
		}
	}
}
 

public DebugMeter (int width, int height) {
	assert (width < 256 && height < 256);

	this.showLabel = true;
	this.name = "";
	this.width = width;
	this.height = height;
	this.pos = new Vector2();

	pixels = new Pixmap(this.width, this.height, Format.RGBA8888);
	texture = new Texture(width, height, Format.RGBA8888);
	texture.setFilter(TextureFilter.Nearest, TextureFilter.Nearest);
	region = new TextureRegion(texture, 0, 0, pixels.getWidth(), pixels.getHeight());
}
 

protected void splitBy( Pixmap bitmap, int height, int color, String chars ) {
	
	int length = chars.length();
	
	int width = bitmap.getWidth();
	float vHeight = (float)height / bitmap.getHeight();
	
	int pos;
	int line = 0;
	
spaceMeasuring:
	for (pos=0; pos <  width; pos++) {
		for (int j=0; j < height; j++) {
			if (bitmap.getPixel( pos, j ) != color) {
				break spaceMeasuring;
			}
		}
	}
	add( ' ', new RectF( 0, 0, (float)pos / width, vHeight-0.01f ) );

	int separator = pos;
	
	for (int i=0; i < length; i++) {
		
		char ch = chars.charAt( i );
		if (ch == ' ') {
			continue;
		} else {

			boolean found;

			do{
				if (separator >= width) {
					line += height;
					separator = 0;
				}
				found = false;
				for (int j=line; j < line + height; j++) {
					if (colorNotMatch( bitmap, separator, j, color)) {
						found = true;
						break;
					}
				}
				if (!found) separator++;
			} while (!found);
			int start = separator;
			
			do {
				if (++separator >= width) {
					line += height;
					separator = start = 0;
					if (line + height >= bitmap.getHeight())
						break;
				}
				found = true;
				for (int j=line; j < line + height; j++) {
					if (colorNotMatch( bitmap, separator, j, color)) {
						found = false;
						break;
					}
				}
			} while (!found);
			
			add( ch, new RectF( (float)start / width, (float)line / bitmap.getHeight(), (float)separator / width, (float)line / bitmap.getHeight() + vHeight) );
			separator++;
		}
	}
	
	lineHeight = baseLine = height( frames.get( chars.charAt( 0 ) ) );
}
 

/**
 * Does not dispose pixmap.
 * @param pixmap
 * @param ninePatch
 * @return 
 */
public static Color averageEdgeColor(Pixmap pixmap, boolean ninePatch) {
    int border = 0;
    if (ninePatch) {
        border = 1;
    }
    
    Color temp = new Color();
    float sumR = 0.0f;
    float sumG = 0.0f;
    float sumB = 0.0f;
    int count = 0;

    //left edge
    for (int y = border; y < pixmap.getHeight() - border; y++) {
        for (int x = border; x < pixmap.getWidth() - border; x++) {
            temp.set(pixmap.getPixel(x, y));
            if (temp.a > 0) {
                sumR += temp.r;
                sumG += temp.g;
                sumB += temp.b;
                count++;
                break;
            }
        }
    }
    
    //right edge
    for (int y = border; y < pixmap.getHeight() - border; y++) {
        for (int x = pixmap.getWidth() - 1 - border; x > border; x--) {
            temp.set(pixmap.getPixel(x, y));
            if (temp.a > 0) {
                sumR += temp.r;
                sumG += temp.g;
                sumB += temp.b;
                count++;
                break;
            }
        }
    }
    
    //top edge
    for (int x = border; x < pixmap.getWidth() - border; x++) {
        for (int y = border; y < pixmap.getHeight() - border; y++) {
            temp.set(pixmap.getPixel(x, y));
            if (temp.a > 0) {
                sumR += temp.r;
                sumG += temp.g;
                sumB += temp.b;
                count++;
                break;
            }
        }
    }
    
    //bottom edge
    for (int x = border; x < pixmap.getWidth() - border; x++) {
        for (int y = pixmap.getHeight() - 1 - border; y > border; y--) {
            temp.set(pixmap.getPixel(x, y));
            if (temp.a > 0) {
                sumR += temp.r;
                sumG += temp.g;
                sumB += temp.b;
                count++;
                break;
            }
        }
    }
    
    if (count == 0) {
        return new Color(Color.BLACK);
    } else {
        return new Color(sumR / count, sumG / count, sumB / count, 1.0f);
    }
}
 

private void changePixmap(Pixmap pixmap) {
	this.pixmap = pixmap;
	pixels = pixmap.getPixels();
	pixelStride = PixmapUtils.getPixelStride(pixmap.getFormat());
	lineStride = pixmap.getWidth() * pixelStride;
}
 

/**
 * Calculates crop regions of the pixmap in up to four directions. Pixel rows/columns are subject
 * to removal if all their pixels have an alpha channel value of exact the same value as given in the parameter.
 */
public static void crop(Pixmap pixmap,
						boolean left,
						boolean bottom,
						boolean right,
						boolean top,
						float alpha,
						CropResult consumer) {

	int width = pixmap.getWidth();
	int height = pixmap.getHeight();

	int a = MathUtils.floor(alpha * 255.0f) & 0xff;

	int minX = left ? width - 1 : 0;
	int maxX = right ? 0 : width - 1;

	int minY = bottom ? height - 1 : 0;
	int maxY = top ? 0 : height - 1;

	ByteBuffer pixels = pixmap.getPixels();

	for (int y = 0; y < height; y++) {
		for (int x = 0; x < width; x++) {

			int rgba = pixels.getInt();

			if ((rgba & 0xff) != a) {

				minX = Math.min(x, minX);
				maxX = Math.max(x, maxX);

				minY = Math.min(y, minY);
				maxY = Math.max(y, maxY);
			}
		}
	}

	pixels.flip();

	consumer.accept(minX, minY, maxX, maxY);
}
 

protected void splitBy( Pixmap bitmap, int height, int color, String chars ) {

			int length = chars.length();

			int width = bitmap.getWidth();
			float vHeight = (float)height / bitmap.getHeight();

			int pos;
			int line = 0;

		spaceMeasuring:
			for (pos=0; pos <  width; pos++) {
				for (int j=0; j < height; j++) {
					if (colorNotMatch(bitmap, pos, j, color)) break spaceMeasuring;
				}
			}
			add( ' ', new RectF( 0, 0, (float)pos / width, vHeight-0.01f ) );

			int separator = pos;

			for (int i=0; i < length; i++) {

				char ch = chars.charAt( i );
				if (ch == ' ') {
					continue;
				} else {

					boolean found;

					do{
						if (separator >= width) {
							line += height;
							separator = 0;
						}
						found = false;
						for (int j=line; j < line + height; j++) {
							if (colorNotMatch( bitmap, separator, j, color)) {
								found = true;
								break;
							}
						}
						if (!found) separator++;
					} while (!found);
					int start = separator;

					do {
						if (++separator >= width) {
							line += height;
							separator = start = 0;
							if (line + height >= bitmap.getHeight())
								break;
						}
						found = true;
						for (int j=line; j < line + height; j++) {
							if (colorNotMatch(bitmap, separator, j, color)) {
								found = false;
								break;
							}
						}
					} while (!found);

					add( ch, new RectF( (float)start / width, (float)line / bitmap.getHeight(), (float)separator / width, (float)line / bitmap.getHeight() + vHeight) );
					separator++;
				}
			}

			lineHeight = baseLine = height( frames.get( chars.charAt( 0 ) ) );
		}
 

public PixmapRegion(Pixmap pixmap) {
	this(pixmap, 0, 0, pixmap.getWidth(), pixmap.getHeight());
}
 

public static PixmapAtlas createFromPixmap(FileHandle pixmapFile, String regionName) {

		Pixmap pixmap = new Pixmap(pixmapFile);

		PixmapAtlas atlas = new PixmapAtlas();

		// add single pixmap
		atlas.pixmaps.add(pixmap);

		// add one page
		AtlasPage atlasPage = new AtlasPage(0, pixmapFile, pixmap);
		atlas.pages.add(atlasPage);

		// add one region
		int width = pixmap.getWidth();
		int height = pixmap.getHeight();

		AtlasRegion atlasRegion = new AtlasRegion(pixmap, 0, 0, width, height);

		atlasRegion.page = atlasPage;
		atlasRegion.index = 0;
		atlasRegion.name = regionName;
		atlasRegion.rotate = false;

		atlas.regions.add(atlasRegion);

		return atlas;
	}
 

/**
 * Vertically mirrors the {@link Pixmap} content, in place, line by line.
 */
public static void flipY(Pixmap pixmap) {

	int width = pixmap.getWidth();
	int height = pixmap.getHeight();

	int pitch = width * getPixelStride(pixmap.getFormat());

	ByteBuffer pixels = pixmap.getPixels();

	byte[][] buffer = new byte[2][pitch];

	for (int y = 0; y < height / 2; y++) {

		pixels.position(y * pitch);
		pixels.get(buffer[0], 0, pitch);

		pixels.position((height - y - 1) * pitch);
		pixels.get(buffer[1], 0, pitch);

		pixels.position(y * pitch);
		pixels.put(buffer[1], 0, pitch);

		pixels.position((height - y - 1) * pitch);
		pixels.put(buffer[0], 0, pitch);
	}

	pixels.position(0);
}
 

public void refreshPreview() {

		Gdx.app.log("NinePatchEditorDialog","refresh preview.");

		Pixmap pixmapImage = new Pixmap(Gdx.files.internal(textSourceImage.getText()));
		
		Pixmap pixmap = new Pixmap((int) (pixmapImage.getWidth()+2), (int) (pixmapImage.getHeight()+2), Pixmap.Format.RGBA8888);
		pixmap.drawPixmap(pixmapImage,1,1);

		pixmap.setColor(Color.BLACK);
		
		// Range left
		int h = pixmapImage.getHeight()+1;
		pixmap.drawLine(0, (int) (h * rangeLeft.rangeStart),0, (int) (h * rangeLeft.rangeStop));
		

		// Range top
		int w = pixmapImage.getWidth()+1;
		pixmap.drawLine((int) (w * rangeTop.rangeStart), 0,(int) (w * rangeTop.rangeStop), 0);

		// Range right
		h = pixmapImage.getHeight()+1;
		pixmap.drawLine(pixmapImage.getWidth()+1, (int) (h * rangeRight.rangeStart),pixmapImage.getWidth()+1, (int) (h * rangeRight.rangeStop));

		// Range bottom
		w = pixmapImage.getWidth()+1;
		pixmap.drawLine((int) (w * rangeBottom.rangeStart), pixmap.getHeight()-1,(int) (w * rangeBottom.rangeStop), pixmap.getHeight()-1);
		
		
		PixmapIO.writePNG(tmpFile, pixmap);
		
		pixmapImage.dispose();
		pixmap.dispose();

		FileHandle fh = new FileHandle(System.getProperty("java.io.tmpdir")).child("skin_ninepatch");
		TexturePacker.Settings settings = new TexturePacker.Settings();
		TexturePacker.process(settings, fh.path(), fh.path(), "pack");

		TextureAtlas ta = new TextureAtlas(fh.child("pack.atlas"));
		NinePatch np = ta.createPatch("button");
		NinePatchDrawable drawable = new NinePatchDrawable(np);
		reviewTablePreview();	
		buttonPreview1.getStyle().up = drawable;
		

	}