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Android example source code file (ProgramVertex.java)

This example Android source code file (ProgramVertex.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

android, baseprogrambuilder, element, matrix4f, matrixallocation, max_light, modelview_offset, programvertex, projection_offset, renderscript, shaderbuilder, texture_offset, util, utilities, utils

The ProgramVertex.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 ProgramVertex extends Program {
    public static final int MAX_LIGHT = 8;


    ProgramVertex(int id, RenderScript rs) {
        super(id, rs);
    }

    public void bindAllocation(MatrixAllocation va) {
        mRS.validate();
        bindConstants(va.mAlloc, 0);
    }


    public static class Builder {
        RenderScript mRS;
        boolean mTextureMatrixEnable;

        public Builder(RenderScript rs, Element in, Element out) {
            mRS = rs;
        }

        public void setTextureMatrixEnable(boolean enable) {
            mTextureMatrixEnable = enable;
        }

        public ProgramVertex create() {
            int id = mRS.nProgramVertexCreate(mTextureMatrixEnable);
            return new ProgramVertex(id, mRS);
        }
    }

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

        public ProgramVertex 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.nProgramVertexCreate2(mShader, tmp);
            ProgramVertex pv = new ProgramVertex(id, mRS);
            initProgram(pv);
            return pv;
        }
    }



    public static class MatrixAllocation {
        static final int MODELVIEW_OFFSET = 0;
        static final int PROJECTION_OFFSET = 16;
        static final int TEXTURE_OFFSET = 32;

        Matrix4f mModel;
        Matrix4f mProjection;
        Matrix4f mTexture;

        public Allocation mAlloc;

        public MatrixAllocation(RenderScript rs) {
            mModel = new Matrix4f();
            mProjection = new Matrix4f();
            mTexture = new Matrix4f();

            mAlloc = Allocation.createSized(rs, Element.createUser(rs, Element.DataType.FLOAT_32), 48);
            mAlloc.subData1D(MODELVIEW_OFFSET, 16, mModel.mMat);
            mAlloc.subData1D(PROJECTION_OFFSET, 16, mProjection.mMat);
            mAlloc.subData1D(TEXTURE_OFFSET, 16, mTexture.mMat);
        }

        public void destroy() {
            mAlloc.destroy();
            mAlloc = null;
        }

        public void loadModelview(Matrix4f m) {
            mModel = m;
            mAlloc.subData1D(MODELVIEW_OFFSET, 16, m.mMat);
        }

        public void loadProjection(Matrix4f m) {
            mProjection = m;
            mAlloc.subData1D(PROJECTION_OFFSET, 16, m.mMat);
        }

        public void loadTexture(Matrix4f m) {
            mTexture = m;
            mAlloc.subData1D(TEXTURE_OFFSET, 16, m.mMat);
        }

        public void setupOrthoWindow(int w, int h) {
            mProjection.loadOrtho(0,w, h,0, -1,1);
            mAlloc.subData1D(PROJECTION_OFFSET, 16, mProjection.mMat);
        }

        public void setupOrthoNormalized(int w, int h) {
            // range -1,1 in the narrow axis.
            if(w > h) {
                float aspect = ((float)w) / h;
                mProjection.loadOrtho(-aspect,aspect,  -1,1,  -1,1);
            } else {
                float aspect = ((float)h) / w;
                mProjection.loadOrtho(-1,1, -aspect,aspect,  -1,1);
            }
            mAlloc.subData1D(PROJECTION_OFFSET, 16, mProjection.mMat);
        }

        public void setupProjectionNormalized(int w, int h) {
            // range -1,1 in the narrow axis at z = 0.
            Matrix4f m1 = new Matrix4f();
            Matrix4f m2 = new Matrix4f();

            if(w > h) {
                float aspect = ((float)w) / h;
                m1.loadFrustum(-aspect,aspect,  -1,1,  1,100);
            } else {
                float aspect = ((float)h) / w;
                m1.loadFrustum(-1,1, -aspect,aspect, 1,100);
            }

            m2.loadRotate(180, 0, 1, 0);
            m1.loadMultiply(m1, m2);

            m2.loadScale(-2, 2, 1);
            m1.loadMultiply(m1, m2);

            m2.loadTranslate(0, 0, 2);
            m1.loadMultiply(m1, m2);

            mProjection = m1;
            mAlloc.subData1D(PROJECTION_OFFSET, 16, mProjection.mMat);
        }

    }

}

Other Android examples (source code examples)

Here is a short list of links related to this Android ProgramVertex.java source code file:

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