am 8e3c1951: Merge "adding fountain framebuffer object sdk sample" into ics-mr0

* commit '8e3c1951915010985db2abee212e8c4c37cacc53':
  adding fountain framebuffer object sdk sample

build/sdk.atree

@@ -195,6 +195,7 @@ development/samples/WiktionarySimple           samples/${PLATFORM_NAME}/Wiktiona
 development/samples/XmlAdapters                samples/${PLATFORM_NAME}/XmlAdapters
 development/samples/RenderScript/Balls         samples/${PLATFORM_NAME}/RenderScript/Balls
 development/samples/RenderScript/Fountain      samples/${PLATFORM_NAME}/RenderScript/Fountain
+development/samples/RenderScript/FountainFbo   samples/${PLATFORM_NAME}/RenderScript/FountainFbo
 development/samples/RenderScript/HelloCompute  samples/${PLATFORM_NAME}/RenderScript/HelloCompute
 development/samples/RenderScript/HelloWorld    samples/${PLATFORM_NAME}/RenderScript/HelloWorld
 development/samples/RenderScript/MiscSamples   samples/${PLATFORM_NAME}/RenderScript/MiscSamples

samples/RenderScript/FountainFbo/Android.mk

@@ -0,0 +1,29 @@
+#
+# 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.
+#
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-renderscript-files-under, src)
+
+# TODO: build fails with this set
+# LOCAL_SDK_VERSION := current
+
+LOCAL_PACKAGE_NAME := RsFountainFbo
+
+include $(BUILD_PACKAGE)

samples/RenderScript/FountainFbo/AndroidManifest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.rs.fountainfbo">
+    <uses-sdk android:minSdkVersion="14" />
+    <application
+        android:label="RsFountainFbo"
+        android:hardwareAccelerated="true"
+        android:icon="@drawable/test_pattern">
+        <activity android:name="FountainFbo">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

samples/RenderScript/FountainFbo/_index.html

@@ -0,0 +1,7 @@
+<p>An example that renders many dots on the screen that follow a user's touch. The dots fall 
+to the bottom of the screen when no touch is detected. This example modifies
+the <a href="../Fountain/index.html">Fountain</a> sample to include rendering to a
+a framebuffer object as well as the default framebuffer.</p>
+
+
+

samples/RenderScript/FountainFbo/src/com/example/android/rs/fountainfbo/FountainFbo.java

@@ -0,0 +1,65 @@
+/*
+ * 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 com.example.android.rs.fountainfbo;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+
+public class FountainFbo extends Activity {
+    private static final String LOG_TAG = "libRS_jni";
+    private static final boolean DEBUG  = false;
+    private static final boolean LOG_ENABLED = false;
+
+    private FountainFboView mView;
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        /* Create our Preview view and set it as the content of our Activity */
+        mView = new FountainFboView(this);
+        setContentView(mView);
+    }
+
+    @Override
+    protected void onResume() {
+        Log.e("rs", "onResume");
+
+        /* Ideally a game should implement onResume() and onPause()
+         to take appropriate action when the activity loses focus */
+        super.onResume();
+        mView.resume();
+    }
+
+    @Override
+    protected void onPause() {
+        Log.e("rs", "onPause");
+
+        /* Ideally a game should implement onResume() and onPause()
+        to take appropriate action when the activity loses focus */
+        super.onPause();
+        mView.pause();
+    }
+
+    static void log(String message) {
+        if (LOG_ENABLED) {
+            Log.v(LOG_TAG, message);
+        }
+    }
+}
+

samples/RenderScript/FountainFbo/src/com/example/android/rs/fountainfbo/FountainFboRS.java

@@ -0,0 +1,99 @@
+/*
+ * 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 com.example.android.rs.fountainfbo;
+
+import android.content.res.Resources;
+import android.renderscript.Allocation;
+import android.renderscript.Element;
+import android.renderscript.Mesh;
+import android.renderscript.ProgramFragment;
+import android.renderscript.ProgramFragmentFixedFunction;
+import android.renderscript.RenderScriptGL;
+import android.renderscript.Type;
+
+public class FountainFboRS {
+    public static final int PART_COUNT = 50000;
+
+    public FountainFboRS() {
+    }
+
+    private Resources mRes;
+    private RenderScriptGL mRS;
+    private ScriptC_fountainfbo mScript;
+    private Allocation mColorBuffer;
+    private ProgramFragment mProgramFragment;
+    private ProgramFragment mTextureProgramFragment;
+    public void init(RenderScriptGL rs, Resources res) {
+      mRS = rs;
+      mRes = res;
+
+      ScriptField_Point points = new ScriptField_Point(mRS, PART_COUNT);
+
+      Mesh.AllocationBuilder smb = new Mesh.AllocationBuilder(mRS);
+      smb.addVertexAllocation(points.getAllocation());
+      smb.addIndexSetType(Mesh.Primitive.POINT);
+      Mesh sm = smb.create();
+
+      mScript = new ScriptC_fountainfbo(mRS, mRes, R.raw.fountainfbo);
+      mScript.set_partMesh(sm);
+      mScript.bind_point(points);
+
+      ProgramFragmentFixedFunction.Builder pfb = new ProgramFragmentFixedFunction.Builder(rs);
+      pfb.setVaryingColor(true);
+      mProgramFragment = pfb.create();
+      mScript.set_gProgramFragment(mProgramFragment);
+
+      /* Second fragment shader to use a texture (framebuffer object) to draw with */
+      pfb.setTexture(ProgramFragmentFixedFunction.Builder.EnvMode.REPLACE,
+          ProgramFragmentFixedFunction.Builder.Format.RGBA, 0);
+
+      /* Set the fragment shader in the Renderscript runtime */
+      mTextureProgramFragment = pfb.create();
+      mScript.set_gTextureProgramFragment(mTextureProgramFragment);
+
+      /* Create the allocation for the color buffer */
+      Type.Builder colorBuilder = new Type.Builder(mRS, Element.RGBA_8888(mRS));
+      colorBuilder.setX(256).setY(256);
+      mColorBuffer = Allocation.createTyped(mRS, colorBuilder.create(),
+      Allocation.USAGE_GRAPHICS_TEXTURE |
+      Allocation.USAGE_GRAPHICS_RENDER_TARGET);
+
+      /* Set the allocation in the Renderscript runtime */
+      mScript.set_gColorBuffer(mColorBuffer);
+
+      mRS.bindRootScript(mScript);
+  }
+
+    boolean holdingColor[] = new boolean[10];
+    public void newTouchPosition(float x, float y, float pressure, int id) {
+        if (id >= holdingColor.length) {
+            return;
+        }
+        int rate = (int)(pressure * pressure * 500.f);
+        if (rate > 500) {
+            rate = 500;
+        }
+        if (rate > 0) {
+            mScript.invoke_addParticles(rate, x, y, id, !holdingColor[id]);
+            holdingColor[id] = true;
+        } else {
+            holdingColor[id] = false;
+        }
+
+    }
+}
+

samples/RenderScript/FountainFbo/src/com/example/android/rs/fountainfbo/FountainFboView.java

@@ -0,0 +1,91 @@
+/*
+ * 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 com.example.android.rs.fountainfbo;
+
+
+import android.renderscript.RSTextureView;
+import android.renderscript.RenderScriptGL;
+import android.content.Context;
+import android.view.MotionEvent;
+
+public class FountainFboView extends RSTextureView {
+
+    public FountainFboView(Context context) {
+        super(context);
+    }
+
+    private RenderScriptGL mRS;
+    private FountainFboRS mRender;
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        android.util.Log.e("rs", "onAttachedToWindow");
+        if (mRS == null) {
+            RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
+            mRS = createRenderScriptGL(sc);
+            mRender = new FountainFboRS();
+            mRender.init(mRS, getResources());
+        }
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        android.util.Log.e("rs", "onDetachedFromWindow");
+        if (mRS != null) {
+            mRS = null;
+            destroyRenderScriptGL();
+        }
+    }
+
+
+    @Override
+    public boolean onTouchEvent(MotionEvent ev)
+    {
+        int act = ev.getActionMasked();
+        if (act == ev.ACTION_UP) {
+            mRender.newTouchPosition(0, 0, 0, ev.getPointerId(0));
+            return false;
+        } else if (act == MotionEvent.ACTION_POINTER_UP) {
+            // only one pointer going up, we can get the index like this
+            int pointerIndex = ev.getActionIndex();
+            int pointerId = ev.getPointerId(pointerIndex);
+            mRender.newTouchPosition(0, 0, 0, pointerId);
+        }
+        int count = ev.getHistorySize();
+        int pcount = ev.getPointerCount();
+
+        for (int p=0; p < pcount; p++) {
+            int id = ev.getPointerId(p);
+            mRender.newTouchPosition(ev.getX(p),
+                                     ev.getY(p),
+                                     ev.getPressure(p),
+                                     id);
+
+            for (int i=0; i < count; i++) {
+                mRender.newTouchPosition(ev.getHistoricalX(p, i),
+                                         ev.getHistoricalY(p, i),
+                                         ev.getHistoricalPressure(p, i),
+                                         id);
+            }
+        }
+        return true;
+    }
+}
+
+

samples/RenderScript/FountainFbo/src/com/example/android/rs/fountainfbo/fountainfbo.rs

@@ -0,0 +1,106 @@
+// Fountain test script
+#pragma version(1)
+
+#pragma rs java_package_name(com.example.android.rs.fountainfbo)
+
+#pragma stateFragment(parent)
+
+#include "rs_graphics.rsh"
+
+static int newPart = 0;
+rs_mesh partMesh;
+rs_program_vertex gProgramVertex;
+
+//allocation for color buffer
+rs_allocation gColorBuffer;
+//fragment shader for rendering without a texture (used for rendering to framebuffer object)
+rs_program_fragment gProgramFragment;
+//fragment shader for rendering with a texture (used for rendering to default framebuffer)
+rs_program_fragment gTextureProgramFragment;
+
+typedef struct __attribute__((packed, aligned(4))) Point {
+    float2 delta;
+    float2 position;
+    uchar4 color;
+} Point_t;
+Point_t *point;
+
+int root() {
+    float dt = min(rsGetDt(), 0.1f);
+    rsgClearColor(0.f, 0.f, 0.f, 1.f);
+    const float height = rsgGetHeight();
+    const int size = rsAllocationGetDimX(rsGetAllocation(point));
+    float dy2 = dt * (10.f);
+    Point_t * p = point;
+    for (int ct=0; ct < size; ct++) {
+        p->delta.y += dy2;
+        p->position += p->delta;
+        if ((p->position.y > height) && (p->delta.y > 0)) {
+            p->delta.y *= -0.3f;
+        }
+        p++;
+    }
+    //Tell Renderscript runtime to render to the frame buffer object
+    rsgBindColorTarget(gColorBuffer, 0);
+
+    //Begin rendering on a white background
+    rsgClearColor(1.f, 1.f, 1.f, 1.f);
+    rsgDrawMesh(partMesh);
+
+    //When done, tell Renderscript runtime to stop rendering to framebuffer object
+    rsgClearAllRenderTargets();
+
+    //Bind a new fragment shader that declares the framebuffer object to be used as a texture
+    rsgBindProgramFragment(gTextureProgramFragment);
+
+    //Bind the framebuffer object to the fragment shader at slot 0 as a texture
+    rsgBindTexture(gTextureProgramFragment, 0, gColorBuffer);
+
+    //Draw a quad using the framebuffer object as the texture
+    float startX = 10, startY = 10;
+    float s = 256;
+    rsgDrawQuadTexCoords(startX, startY, 0, 0, 1,
+                         startX, startY + s, 0, 0, 0,
+                         startX + s, startY + s, 0, 1, 0,
+                         startX + s, startY, 0, 1, 1);
+
+    //Rebind the original fragment shader to render as normal
+    rsgBindProgramFragment(gProgramFragment);
+
+    //Render the main scene
+    rsgDrawMesh(partMesh);
+
+    return 1;
+}
+
+static float4 partColor[10];
+void addParticles(int rate, float x, float y, int index, bool newColor)
+{
+    if (newColor) {
+        partColor[index].x = rsRand(0.5f, 1.0f);
+        partColor[index].y = rsRand(1.0f);
+        partColor[index].z = rsRand(1.0f);
+    }
+    float rMax = ((float)rate) * 0.02f;
+    int size = rsAllocationGetDimX(rsGetAllocation(point));
+    uchar4 c = rsPackColorTo8888(partColor[index]);
+
+    Point_t * np = &point[newPart];
+    float2 p = {x, y};
+    while (rate--) {
+        float angle = rsRand(3.14f * 2.f);
+        float len = rsRand(rMax);
+        np->delta.x = len * sin(angle);
+        np->delta.y = len * cos(angle);
+        np->position = p;
+        np->color = c;
+        newPart++;
+        np++;
+        if (newPart >= size) {
+            newPart = 0;
+            np = &point[newPart];
+        }
+    }
+}
+
+