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OpenGL vector map library - running on Android, iOS, Desktop and browser.
/*
* Copyright 2016-2017 Longri
* Copyright 2018 devemux86
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see
* Create a IosBitmap with given width and height.
* The format is ignored and set always to ARGB8888
*
* @param width
* @param height
* @param format ignored always ARGB8888
*/
public IosBitmap(int width, int height, int format) {
this.width = width;
this.height = height;
this.cgBitmapContext = CGBitmapContext.create(width, height, 8, 4 * width,
CGColorSpace.createDeviceRGB(), CGImageAlphaInfo.PremultipliedLast);
}
/**
* Constructor
* Create a IosBitmap from given InputStream
*
* @param inputStream
* @throws IOException
*/
public IosBitmap(InputStream inputStream) throws IOException {
NSData data = new NSData(toByteArray(inputStream));
CGImage image = new UIImage(data).getCGImage();
this.width = (int) image.getWidth();
this.height = (int) image.getHeight();
this.cgBitmapContext = CGBitmapContext.create(this.width, this.height, 8, 4 * this.width,
CGColorSpace.createDeviceRGB(), CGImageAlphaInfo.PremultipliedLast);
this.cgBitmapContext.drawImage(new CGRect(0, 0, this.width, this.height), image);
image.dispose();
}
/**
* Constructor
* Create a IosBitmap from given InputStream
*
* @param inputStream
* @throws IOException
*/
public IosBitmap(InputStream inputStream, int width, int height, int percent) throws IOException {
// TODO Scaling
this(inputStream);
}
/**
* Constructor
* Load a IosBitmap from Asset with given FilePath
*
* @param fileName
* @throws IOException
*/
public IosBitmap(String fileName) throws IOException {
if (fileName == null || fileName.length() == 0) {
// no image source defined
this.cgBitmapContext = null;
this.width = 0;
this.height = 0;
return;
}
InputStream inputStream = AssetAdapter.readFileAsStream(fileName);
if (inputStream == null) {
log.error("invalid bitmap source: " + fileName);
// no image source defined
this.cgBitmapContext = null;
this.width = 0;
this.height = 0;
return;
}
NSData data = new NSData(toByteArray(inputStream));
CGImage image = new UIImage(data).getCGImage();
this.width = (int) image.getWidth();
this.height = (int) image.getHeight();
this.cgBitmapContext = CGBitmapContext.create(width, height, 8, 4 * width,
CGColorSpace.createDeviceRGB(), CGImageAlphaInfo.PremultipliedLast);
this.cgBitmapContext.drawImage(new CGRect(0, 0, width, height), image);
image.dispose();
}
/**
* Protected constructor for create IosBitmap from IosSvgBitmap.
*
* @param image
*/
protected IosBitmap(UIImage image) {
CGImage cgiIimage = image.getCGImage();
this.width = (int) cgiIimage.getWidth();
this.height = (int) cgiIimage.getHeight();
this.cgBitmapContext = CGBitmapContext.create(width, height, 8, 4 * width,
CGColorSpace.createDeviceRGB(), CGImageAlphaInfo.PremultipliedLast);
this.cgBitmapContext.drawImage(new CGRect(0, 0, width, height), cgiIimage);
// can dispose helper images for release memory
image.dispose();
cgiIimage.dispose();
}
@Override
public int getWidth() {
return this.width;
}
@Override
public int getHeight() {
return this.height;
}
@Override
public void recycle() {
//CGContext.close() will close the object and release any system resources it holds.
if (this.cgBitmapContext != null) {
this.cgBitmapContext.close();
this.cgBitmapContext = null;
}
if (this.directPixelBuffer != null) {
this.directPixelBuffer.clear();
this.directPixelBuffer = null;
}
}
@Override
public int[] getPixels() {
//Todo fill a int[] with pixmap.getPixel(x,y)
return new int[0];
}
@Override
public void eraseColor(int color) {
//delete all pixels and fill with given color
CGRect rect = new CGRect(0, 0, this.width, this.height);
this.cgBitmapContext.setFillColor(getCGColor(color));
this.cgBitmapContext.setBlendMode(CGBlendMode.Clear);
this.cgBitmapContext.fillRect(rect);
this.cgBitmapContext.setBlendMode(CGBlendMode.Normal);
this.cgBitmapContext.fillRect(rect);
}
@Override
public void uploadToTexture(boolean replace) {
//create a pixel buffer for upload from direct memory pointer
if (directPixelBuffer == null) {
//create Pixmap from cgBitmapContext for extract glFormat info's
UIImage uiImage = new UIImage(cgBitmapContext.toImage());
NSData data = uiImage.toPNGData();
byte[] encodedData = data.getBytes();
Pixmap pixmap = new Pixmap(encodedData, 0, encodedData.length);
glInternalFormat = pixmap.getGLInternalFormat();
glFormat = pixmap.getGLFormat();
glType = pixmap.getGLType();
directPixelBuffer = cgBitmapContext.getData().asIntBuffer(encodedData.length / 4);
pixmap.dispose();
}
Gdx.gl.glTexImage2D(GL.TEXTURE_2D, 0, glInternalFormat, this.width, this.height, 0
, glFormat, glType, directPixelBuffer);
}
@Override
public boolean isValid() {
return this.cgBitmapContext != null;
}
/**
* Returns a ByteArray from InputStream
*
* @param in InputStream
* @return
* @throws IOException
*/
static byte[] toByteArray(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buff = new byte[8192];
while (in.read(buff) > 0) {
out.write(buff);
}
out.close();
return out.toByteArray();
}
/**
* Returns the CGColor from given int
*
* @param color
* @return
*/
static CGColor getCGColor(int color) {
return UIColor.fromRGBA(
Color.a(color),
Color.g(color),
Color.b(color),
Color.r(color))
.getCGColor();
}
@Override
public byte[] getPngEncodedData() {
UIImage uiImage = new UIImage(cgBitmapContext.toImage());
NSData data = uiImage.toPNGData();
return data.getBytes();
}
@Override
public void scaleTo(int width, int height) {
// TODO
}
}