1 /*
   2  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.scenario.effect.impl.prism.ps;
  27 
  28 import com.sun.javafx.geom.Rectangle;
  29 import com.sun.javafx.geom.transform.BaseTransform;
  30 import com.sun.prism.ps.Shader;
  31 import com.sun.scenario.effect.Effect;
  32 import com.sun.scenario.effect.FilterContext;
  33 import com.sun.scenario.effect.ImageData;
  34 import com.sun.scenario.effect.impl.EffectPeer;
  35 import com.sun.scenario.effect.impl.Renderer;
  36 import com.sun.scenario.effect.impl.state.RenderState;
  37 
  38 public abstract class PPSEffectPeer<T extends RenderState> extends EffectPeer<T> {
  39 
  40     protected PPSEffectPeer(FilterContext fctx, Renderer r, String shaderName) {
  41         super(fctx, r, shaderName);
  42     }
  43 
  44     @Override
  45     public final ImageData filter(final Effect effect,
  46                                   final T renderState,
  47                                   final BaseTransform transform,
  48                                   final Rectangle outputClip,
  49                                   final ImageData... inputs)
  50     {
  51         setEffect(effect);
  52         setRenderState(renderState);
  53         setDestBounds(getResultBounds(transform, outputClip, inputs));
  54         return filterImpl(inputs);
  55     }
  56 
  57     abstract ImageData filterImpl(ImageData... inputs);
  58 
  59     protected abstract boolean isSamplerLinear(int i);
  60 
  61     protected abstract Shader createShader();
  62 
  63     protected abstract void updateShader(Shader shader);
  64 
  65     /**
  66      * Disposes resources associated with this peer.
  67      * Warning: called from the rendering thread.
  68      */
  69     @Override
  70     public abstract void dispose();
  71 
  72     @Override
  73     protected final PPSRenderer getRenderer() {
  74         return (PPSRenderer)super.getRenderer();
  75     }
  76 
  77     protected final String getShaderName() {
  78         return getUniqueName();
  79     }
  80 }