| /* |
| * 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; |
| } |
| |
| } |
| } |
| |