Merge "Added new Mesh activity to test performance."

                <category android:name="com.android.test.hwui.TEST"/>

            </intent-filter>

        </activity>

        <activity android:name="MeshLargeActivity"

                             android:label="Mesh/LargeMesh"

                             android:exported="true">

        <intent-filter>

            <action android:name="android.intent.action.MAIN"/>

            <category android:name="com.android.test.hwui.TEST"/>

        </intent-filter>

    </activity>

    </application>

</manifest>

/*

 * Copyright (C) 2023 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 com.android.test.hwui;

import android.app.Activity;

import android.content.Context;

import android.graphics.BlendMode;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Mesh;

import android.graphics.MeshSpecification;

import android.graphics.MeshSpecification.Attribute;

import android.graphics.MeshSpecification.Varying;

import android.graphics.Paint;

import android.graphics.Rect;

import android.os.Bundle;

import android.view.View;

import java.nio.FloatBuffer;

import java.nio.ShortBuffer;

import java.util.ArrayList;

public class MeshLargeActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(new MeshView(this));

    }

    static class MeshView extends View {

        MeshView(Context c) {

            super(c);

            this.setOnTouchListener((v, event) -> {

                invalidate();

                return true;

            });

        }

        @Override

        protected void onDraw(Canvas canvas) {

            super.onDraw(canvas);

            MeshSpecification meshSpec = createMeshSpecification();

            int numTriangles = 10000;

            // number of triangles plus first 2 vertices

            FloatBuffer vertexBuffer = FloatBuffer.allocate((numTriangles + 2) * 30);

            ShortBuffer indexBuffer = ShortBuffer.allocate(numTriangles * 3);

            float origin = 500.0f;

            int radius = 200;

            // origin

            vertexBuffer.put(0, origin);

            vertexBuffer.put(1, origin);

            for (int i = 0; i < 7; i++) {

                vertexBuffer.put(2 + (i * 4), 1.0f);

                vertexBuffer.put(2 + (i * 4) + 1, 1.0f);

                vertexBuffer.put(2 + (i * 4) + 2, 1.0f);

                vertexBuffer.put(2 + (i * 4) + 3, 1.0f);

            }

            // first point

            vertexBuffer.put(30, origin + radius);

            vertexBuffer.put(31, origin);

            for (int i = 0; i < 7; i++) {

                vertexBuffer.put(32 + (i * 4), 1.0f);

                vertexBuffer.put(32 + (i * 4) + 1, 1.0f);

                vertexBuffer.put(32 + (i * 4) + 2, 1.0f);

                vertexBuffer.put(32 + (i * 4) + 3, 1.0f);

            }

            int nVert = 2;

            int nInd = 0;

            for (int i = 2; i <= numTriangles + 1; i++) {

                double angle = 2 * Math.PI * i / numTriangles;

                double x = radius * Math.cos(angle);

                double y = radius * Math.sin(angle);

                // position

                vertexBuffer.put(i * 30, origin + (float) x);

                vertexBuffer.put(i * 30 + 1, origin + (float) y);

                // test through test7

                for (int j = 0; j < 7; j++) {

                    vertexBuffer.put((i * 30 + 2) + (j * 4), 1.0f);

                    vertexBuffer.put((i * 30 + 2) + (j * 4) + 1, 1.0f);

                    vertexBuffer.put((i * 30 + 2) + (j * 4) + 2, 1.0f);

                    vertexBuffer.put((i * 30 + 2) + (j * 4) + 3, 1.0f);

                }

                indexBuffer.put(nInd++, (short) 0);

                indexBuffer.put(nInd++, (short) (nVert - 1));

                indexBuffer.put(nInd++, (short) nVert);

                nVert++;

            }

            vertexBuffer.rewind();

            indexBuffer.rewind();

            Mesh mesh = Mesh.makeIndexed(

                    meshSpec, Mesh.TRIANGLES, vertexBuffer, numTriangles + 2, indexBuffer,

                    new Rect(0, 0, 1000, 1000)

            );

            mesh.setFloatUniform("test", 1.0f, 2.0f);

            Paint paint = new Paint();

            paint.setColor(Color.BLUE);

            canvas.drawMesh(mesh, BlendMode.SRC, paint);

        }

        private MeshSpecification createMeshSpecification() {

            String vs = "Varyings main(const Attributes attributes) { "

                    + "     Varyings varyings;"

                    + "     varyings.position = attributes.position;"

                    + "     return varyings;"

                    + "}";

            String fs = "uniform float2 test;"

                    + "float2 main(const Varyings varyings, out float4 color) {\n"

                    + "      color = vec4(1.0, 0.0, 0.0, 1.0);"

                    + "      return varyings.position;\n"

                    + "}";

            ArrayList<Attribute> attList = new ArrayList<>();

            attList.add(new Attribute(MeshSpecification.FLOAT2, 0, "position"));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    8,

                    "test"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    24,

                    "test2"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    40,

                    "test3"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    56,

                    "test4"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    72,

                    "test5"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    88,

                    "test6"

            ));

            attList.add(new Attribute(

                    MeshSpecification.FLOAT4,

                    104,

                    "test7"

            ));

            ArrayList<Varying> varyList = new ArrayList<>();

            return MeshSpecification.make(attList, 120, varyList, vs, fs);

        }

    }

}