test renderer ?

Stanlepunk

Hello I try to test the renderer, but it's not accessible. there is an other way to know the rendering mode ? void setup() { size(400,400, P3D) ; if (renderer.equals(P3D)) println("P3D") ; else println("2D" ) ; }

quark

You already know what the renderer is because you use it in size, but this will work if you want to find out in other methods

// Set the renderer to use
String renderer = P3D;

void setup() {
  size(400, 400, renderer) ;
  if (renderer.equals(P3D)) 
    println("P3D") ; 
  else if (renderer.equals(P2D)) 
    println("P2D" ) ;
  else if (renderer.equals(JAVA2D)) 
    println("JAVA2D" ) ;
}

GoToLoop

https://forum.Processing.org/two/discussion/8045/how-to-format-code-and-text

// forum.Processing.org/two/discussion/14093/test-renderer
// GoToLoop 2015-Dec-21

void setup() {
  size(400, 300, OPENGL);
  println(getRendererName());
  exit();
}

String getRendererName() {
  final PGraphics graph = getGraphics(); // can be replaced by g.

  if (graph instanceof processing.awt.PGraphicsJava2D)   return JAVA2D;
  if (graph instanceof processing.javafx.PGraphicsFX2D)  return FX2D;
  if (graph instanceof processing.opengl.PGraphics2D)    return P2D;
  if (graph instanceof processing.opengl.PGraphics3D)    return P3D;

  return PDF;
}

GoToLoop

A better alternative based on forName() & isInstance() from Class: :-bd

1. http://docs.Oracle.com/javase/8/docs/api/java/lang/Class.html#forName-java.lang.String-
2. http://docs.Oracle.com/javase/8/docs/api/java/lang/Class.html#isInstance-java.lang.Object-

// forum.Processing.org/two/discussion/14093/test-renderer
// GoToLoop 2015-Dec-21

void setup() {
  size(400, 300, OPENGL);
  println(getRendererName());
  exit();
}

String getRendererName() {
  final PGraphics graph = getGraphics(); // can be replaced by g.

  try {
    if (Class.forName(JAVA2D).isInstance(graph))  return JAVA2D;
    if (Class.forName(FX2D).isInstance(graph))    return FX2D;
    if (Class.forName(P2D).isInstance(graph))     return P2D;
    if (Class.forName(P3D).isInstance(graph))     return P3D;
    if (Class.forName(PDF).isInstance(graph))     return PDF;
    if (Class.forName(DXF).isInstance(graph))     return DXF;
  }

  catch (ClassNotFoundException ex) {
  }

  return "Unknown";
}

GoToLoop

A bad advise but a very curious Java case... =;
In @quark's example, since field renderer is a known compile literal, we don't need equals() for comparison against another String constant.
Exceptionally we may choose risking on going straight w/ == equality operator for such cases: :ar!

String renderer = P3D;

void setup() {
  size(400, 300, renderer);

  if      (renderer == P3D)     println("P3D") ; 
  else if (renderer == P2D)     println("P2D");
  else if (renderer == JAVA2D)  println("JAVA2D");
  else if (renderer == FX2D)    println("FX2D");

  exit();
}

GoToLoop

Nonetheless, it's still too risky to use == to compare String constants.
However, switch () {...} / case: ... is a gr8 replacement since it relies on equals() internally: :bz

// forum.Processing.org/two/discussion/14093/test-renderer
// GoToLoop 2015-Dec-21

//static final String RENDER = OPENGL; // Known compile time constant.
static final String RENDER = new String(OPENGL); // Forcing unique instance!

void setup() {
  size(400, 300, RENDER);
  println(stringfyRenderer(RENDER));
  exit();
}

static final String stringfyRenderer(String render) {
  switch (render) {
    case JAVA2D: return "JAVA2D";
    case FX2D:   return "FX2D";
    case P2D:    return "P2D";
    case P3D:    return "P3D";
    case PDF:    return "PDF";
    case DXF:    return "DXF";
    default:     return "Unknown";
  }
}

GoToLoop

An updated & more flexible version to deal w/ createGraphics() instances too: :D

// forum.Processing.org/two/discussion/14093/test-renderer
// GoToLoop 2015-Dec-21

void setup() {
  size(400, 300, OPENGL);
  println(getRendererName(getGraphics())); // can be replaced by g.
  println(getRendererName(createGraphics(width>>1, height>>1, FX2D)));
  exit();
}

static final String getRendererName(final PGraphics graph) {
  try {
    if (Class.forName(JAVA2D).isInstance(graph))  return JAVA2D;
    if (Class.forName(FX2D).isInstance(graph))    return FX2D;
    if (Class.forName(P2D).isInstance(graph))     return P2D;
    if (Class.forName(P3D).isInstance(graph))     return P3D;
    if (Class.forName(PDF).isInstance(graph))     return PDF;
    if (Class.forName(DXF).isInstance(graph))     return DXF;
  }

  catch (ClassNotFoundException ex) {
  }

  return "Unknown";
}

Stanlepunk

Whaouuuuu totaly answering :) Thx a lot Processing brothers !

GoToLoop

Glad you've liked it, @Stanlepunk. B-)
However I've forgotten about SVG renderer. And b/c both PDF & SVG are subclasses of JAVA2D, PDF renderer was returning as if it was JAVA2D! b-(
But for sake of correctness, here's a more correct behavior fix. Plus some speed tweak checks: :D

// forum.Processing.org/two/discussion/14093/test-renderer
// GoToLoop 2015-Dec-22

import processing.pdf.PGraphicsPDF;
import processing.svg.PGraphicsSVG;
import processing.dxf.RawDXF;

void setup() {
  size(400, 300, OPENGL);
  println(getRendererName(getGraphics())); // can be replaced by g.
  println(getRendererName(createGraphics(width, height, JAVA2D)));
  println(getRendererName(createGraphics(width, height, FX2D)));
  println(getRendererName(createGraphics(width, height, P2D)));
  println(getRendererName(createGraphics(width, height, PDF)));
  println(getRendererName(createGraphics(width, height, SVG)));
  println(getRendererName(createGraphics(width, height, DXF)));
  exit();
}

static final String getRendererName(final PGraphics graph) {
  if (graph.displayable()) {
    if (graph.isGL())  return graph.is2D()? P2D : P3D;
    return graph instanceof processing.awt.PGraphicsJava2D? JAVA2D : FX2D;
  } else if (graph.is3D())  return DXF;

  else try {
    if (Class.forName(PDF).isInstance(graph))  return PDF;
    if (Class.forName(SVG).isInstance(graph))  return SVG;
  } catch (final ClassNotFoundException cause) {
    System.err.println(cause);
  }

  return "Unknown";
}

Stanlepunk

thanks for the improvement !!!! very nice code