Method readPixels

core/src/processing/opengl/PGL.java:3130–3143

(int x, int y, int width, int height, int format, int type, Buffer buffer)

  // to glReadPixels() should be done in readPixelsImpl().

  public void readPixels(int x, int y, int width, int height, int format, int type, Buffer buffer){
    boolean multisampled = isMultisampled() || graphics.offscreenMultisample;
    boolean depthReadingEnabled = graphics.getHint(PConstants.ENABLE_BUFFER_READING);
    boolean depthRequested = format == STENCIL_INDEX || format == DEPTH_COMPONENT || format == DEPTH_STENCIL;

    if (multisampled && depthRequested && !depthReadingEnabled) {
      PGraphics.showWarning(DEPTH_READING_NOT_ENABLED_ERROR);
      return;
    }

    graphics.beginReadPixels();
    readPixelsImpl(x, y, width, height, format, type, buffer);
    graphics.endReadPixels();
  }

  public void readPixels(int x, int y, int width, int height, int format, int type, long offset){
    boolean multisampled = isMultisampled() || graphics.offscreenMultisample;