Android example source code file (ProgramFragment.java)

This example Android source code file (ProgramFragment.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

alpha, android, baseprogrambuilder, decal, envmode, format, illegalargumentexception, luminance_alpha, max_texture, modulate, programfragment, renderscript, rgba, shaderbuilder, slot, util, utilities, utils

The ProgramFragment.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.renderscript;


import android.util.Config;
import android.util.Log;


/**
 * @hide
 *
 **/
public class ProgramFragment extends Program {
    ProgramFragment(int id, RenderScript rs) {
        super(id, rs);
    }

    public static class ShaderBuilder extends BaseProgramBuilder {
        public ShaderBuilder(RenderScript rs) {
            super(rs);
        }

        public ProgramFragment create() {
            mRS.validate();
            int[] tmp = new int[(mInputCount + mOutputCount + mConstantCount + 1) * 2];
            int idx = 0;

            for (int i=0; i < mInputCount; i++) {
                tmp[idx++] = 0;
                tmp[idx++] = mInputs[i].mID;
            }
            for (int i=0; i < mOutputCount; i++) {
                tmp[idx++] = 1;
                tmp[idx++] = mOutputs[i].mID;
            }
            for (int i=0; i < mConstantCount; i++) {
                tmp[idx++] = 2;
                tmp[idx++] = mConstants[i].mID;
            }
            tmp[idx++] = 3;
            tmp[idx++] = mTextureCount;

            int id = mRS.nProgramFragmentCreate2(mShader, tmp);
            ProgramFragment pf = new ProgramFragment(id, mRS);
            initProgram(pf);
            return pf;
        }
    }

    public static class Builder {
        public static final int MAX_TEXTURE = 2;
        RenderScript mRS;
        boolean mPointSpriteEnable;

        public enum EnvMode {
            REPLACE (1),
            MODULATE (2),
            DECAL (3);

            int mID;
            EnvMode(int id) {
                mID = id;
            }
        }

        public enum Format {
            ALPHA (1),
            LUMINANCE_ALPHA (2),
            RGB (3),
            RGBA (4);

            int mID;
            Format(int id) {
                mID = id;
            }
        }

        private class Slot {
            EnvMode env;
            Format format;
            Slot(EnvMode _env, Format _fmt) {
                env = _env;
                format = _fmt;
            }
        }
        Slot[] mSlots;

        public Builder(RenderScript rs) {
            mRS = rs;
            mSlots = new Slot[MAX_TEXTURE];
            mPointSpriteEnable = false;
        }

        public void setTexture(EnvMode env, Format fmt, int slot)
            throws IllegalArgumentException {
            if((slot < 0) || (slot >= MAX_TEXTURE)) {
                throw new IllegalArgumentException("MAX_TEXTURE exceeded.");
            }
            mSlots[slot] = new Slot(env, fmt);
        }

        public void setPointSpriteTexCoordinateReplacement(boolean enable) {
            mPointSpriteEnable = enable;
        }

        public ProgramFragment create() {
            mRS.validate();
            int[] tmp = new int[MAX_TEXTURE * 2 + 1];
            if (mSlots[0] != null) {
                tmp[0] = mSlots[0].env.mID;
                tmp[1] = mSlots[0].format.mID;
            }
            if (mSlots[1] != null) {
                tmp[2] = mSlots[1].env.mID;
                tmp[3] = mSlots[1].format.mID;
            }
            tmp[4] = mPointSpriteEnable ? 1 : 0;
            int id = mRS.nProgramFragmentCreate(tmp);
            ProgramFragment pf = new ProgramFragment(id, mRS);
            pf.mTextureCount = MAX_TEXTURE;
            return pf;
        }
    }
}