public Numerical1DDataDomainValues(TablePerspective data, EDimension main) {
super(data, main);
Perspective p = main.select(data.getDimensionPerspective(), data.getRecordPerspective());
this.groups = Numerical1DMixin.extractGroups(p, this);
this.isInteger = DataSupportDefinitions.dataClass(EDataClass.NATURAL_NUMBER).apply(data);
Object desc = getDescription();
Float min = null, max = null;
if (desc instanceof NumericalProperties) {
min = ((NumericalProperties) desc).getMin();
max = ((NumericalProperties) desc).getMax();
}
if (min == null || min.isNaN() || max == null || max.isNaN()) {
DoubleStatistics stats = createStats(this, groups);
if (min == null || min.isNaN()) min = (float) stats.getMin();
if (max == null || max.isNaN()) max = (float) stats.getMax();
}
this.mixin = new Numerical1DMixin(this, groups, min.floatValue(), max.floatValue());
}
/**
* @param buffer
* @param tile
* @param pool
* @return
*/
private Tile createTile(
FloatBuffer buffer,
Rectangle tile,
GL gl,
Deque<Texture> pool,
TablePerspective tablePerspective) {
final VirtualArray recordVA = tablePerspective.getRecordPerspective().getVirtualArray();
final VirtualArray dimVA = tablePerspective.getDimensionPerspective().getVirtualArray();
final ATableBasedDataDomain dataDomain = tablePerspective.getDataDomain();
final int ilast = tile.y + tile.height;
final int jlast = tile.x + tile.width;
// fill buffer
buffer.rewind();
for (int i = tile.y; i < ilast; ++i) {
int recordID = recordVA.get(i);
for (int j = tile.x; j < jlast; ++j) {
int dimensionID = dimVA.get(j);
Color color = blockColorer.apply(recordID, dimensionID, dataDomain, false);
buffer.put(color.getRGBA());
}
}
// load to texture
buffer.rewind();
Texture texture;
if (!pool.isEmpty()) texture = pool.poll();
else texture = TextureIO.newTexture(GL.GL_TEXTURE_2D);
TextureData texData = asTextureData(buffer, tile.width, tile.height);
texture.updateImage(gl, texData);
gl.glFlush();
texData.destroy();
return new Tile(tile, texture);
}
/**
* @param context
* @return
*/
private boolean hasTablePerspective(GLElementFactoryContext context) {
TablePerspective d = context.getData();
if (d == null) return false;
if (!DataSupportDefinitions.homogenousColumns.apply(d)) return false;
return d.getNrDimensions() == 1 || d.getNrRecords() == 1;
}
/** @param context */
public void create(IGLElementContext context, TablePerspective tablePerspective) {
final GL gl = GLContext.getCurrentGL();
final int numberOfRecords = tablePerspective.getRecordPerspective().getVirtualArray().size();
final int numberOfDimensions =
tablePerspective.getDimensionPerspective().getVirtualArray().size();
dimension = new Dimension(numberOfDimensions, numberOfRecords);
if (numberOfDimensions <= 0 || numberOfRecords <= 0) {
takeDown();
return;
}
final int maxSize = resolveMaxSize(gl);
boolean needXTiling = numberOfDimensions > maxSize;
boolean needYTiling = numberOfRecords > maxSize;
// pool of old texture which we might wanna reuse
final Deque<Texture> pool = new LinkedList<>();
for (Tile tile : tiles) {
pool.add(tile.texture);
}
tiles.clear();
if (!needXTiling && !needYTiling) {
// single tile
FloatBuffer buffer =
FloatBuffer.allocate(numberOfDimensions * numberOfRecords * 4); // w*h*rgba
Rectangle tile = new Rectangle(0, 0, numberOfDimensions, numberOfRecords);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
} else if (needXTiling && !needYTiling) {
// tile in x direction only
FloatBuffer buffer = FloatBuffer.allocate(maxSize * numberOfRecords * 4); // w*h*rgba
// fill full
int lastTile = numberOfDimensions - maxSize;
for (int i = 0; i < lastTile; i += maxSize) {
Rectangle tile = new Rectangle(i, 0, maxSize, numberOfRecords);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
{ // create rest
int remaining = numberOfDimensions % maxSize;
Rectangle tile =
new Rectangle(numberOfDimensions - remaining, 0, remaining, numberOfRecords);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
} else if (!needXTiling && needYTiling) {
// tile in y direction only
FloatBuffer buffer = FloatBuffer.allocate(numberOfDimensions * maxSize * 4); // w*h*rgba
// fill full
int lastTile = numberOfRecords - maxSize;
for (int i = 0; i < lastTile; i += maxSize) {
Rectangle tile = new Rectangle(0, i, numberOfDimensions, maxSize);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
{ // create rest
int remaining = numberOfRecords % maxSize;
Rectangle tile =
new Rectangle(0, numberOfRecords - remaining, numberOfDimensions, remaining);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
} else {
// tile in both directions
// tile in y direction only
FloatBuffer buffer = FloatBuffer.allocate(maxSize * maxSize * 4); // w*h*rgba
// fill full
int lastTileR = numberOfRecords - maxSize;
int lastTileD = numberOfDimensions - maxSize;
for (int i = 0; i < lastTileR; i += maxSize) {
for (int j = 0; j < lastTileD; j += maxSize) {
Rectangle tile = new Rectangle(j, i, maxSize, maxSize);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
{ // create rest
int remaining = numberOfDimensions % maxSize;
Rectangle tile = new Rectangle(numberOfDimensions - remaining, i, remaining, maxSize);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
}
{ // last line
int iremaining = numberOfRecords % maxSize;
int i = numberOfRecords - iremaining;
for (int j = 0; j < lastTileD; j += maxSize) {
Rectangle tile = new Rectangle(j, i, maxSize, iremaining);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
{ // create rest
int remaining = numberOfDimensions % maxSize;
Rectangle tile = new Rectangle(numberOfDimensions - remaining, i, remaining, iremaining);
tiles.add(createTile(buffer, tile, gl, pool, tablePerspective));
}
}
}
// free remaining elements in pool
for (Texture tex : pool) tex.destroy(gl);
pool.clear();
}