1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.rs.balls; 18 19 import android.content.res.Resources; 20 import android.renderscript.*; 21 import android.util.Log; 22 23 public class BallsRS { 24 public static final int PART_COUNT = 900; 25 26 public BallsRS() { 27 } 28 29 private Resources mRes; 30 private RenderScriptGL mRS; 31 private ScriptC_balls mScript; 32 private ScriptC_ball_physics mPhysicsScript; 33 private ProgramFragment mPFLines; 34 private ProgramFragment mPFPoints; 35 private ProgramVertex mPV; 36 private ScriptField_Point mPoints; 37 private ScriptField_VpConsts mVpConsts; 38 39 void updateProjectionMatrices() { 40 mVpConsts = new ScriptField_VpConsts(mRS, 1, 41 Allocation.USAGE_SCRIPT | 42 Allocation.USAGE_GRAPHICS_CONSTANTS); 43 ScriptField_VpConsts.Item i = new ScriptField_VpConsts.Item(); 44 Matrix4f mvp = new Matrix4f(); 45 mvp.loadOrtho(0, mRS.getWidth(), mRS.getHeight(), 0, -1, 1); 46 i.MVP = mvp; 47 mVpConsts.set(i, 0, true); 48 } 49 50 private void createProgramVertex() { 51 updateProjectionMatrices(); 52 53 ProgramVertex.Builder sb = new ProgramVertex.Builder(mRS); 54 String t = "varying vec4 varColor;\n" + 55 "void main() {\n" + 56 " vec4 pos = vec4(0.0, 0.0, 0.0, 1.0);\n" + 57 " pos.xy = ATTRIB_position;\n" + 58 " gl_Position = UNI_MVP * pos;\n" + 59 " varColor = vec4(1.0, 1.0, 1.0, 1.0);\n" + 60 " gl_PointSize = ATTRIB_size;\n" + 61 "}\n"; 62 sb.setShader(t); 63 sb.addConstant(mVpConsts.getType()); 64 sb.addInput(mPoints.getElement()); 65 ProgramVertex pvs = sb.create(); 66 pvs.bindConstants(mVpConsts.getAllocation(), 0); 67 mRS.bindProgramVertex(pvs); 68 } 69 70 private Allocation loadTexture(int id) { 71 final Allocation allocation = 72 Allocation.createFromBitmapResource(mRS, mRes, 73 id, Allocation.MipmapControl.MIPMAP_NONE, 74 Allocation.USAGE_GRAPHICS_TEXTURE); 75 return allocation; 76 } 77 78 ProgramStore BLEND_ADD_DEPTH_NONE(RenderScript rs) { 79 ProgramStore.Builder builder = new ProgramStore.Builder(rs); 80 builder.setDepthFunc(ProgramStore.DepthFunc.ALWAYS); 81 builder.setBlendFunc(ProgramStore.BlendSrcFunc.ONE, ProgramStore.BlendDstFunc.ONE); 82 builder.setDitherEnabled(false); 83 builder.setDepthMaskEnabled(false); 84 return builder.create(); 85 } 86 87 public void init(RenderScriptGL rs, Resources res, int width, int height) { 88 mRS = rs; 89 mRes = res; 90 91 ProgramFragmentFixedFunction.Builder pfb = new ProgramFragmentFixedFunction.Builder(rs); 92 pfb.setPointSpriteTexCoordinateReplacement(true); 93 pfb.setTexture(ProgramFragmentFixedFunction.Builder.EnvMode.MODULATE, 94 ProgramFragmentFixedFunction.Builder.Format.RGBA, 0); 95 pfb.setVaryingColor(true); 96 mPFPoints = pfb.create(); 97 98 pfb = new ProgramFragmentFixedFunction.Builder(rs); 99 pfb.setVaryingColor(true); 100 mPFLines = pfb.create(); 101 102 android.util.Log.e("rs", "Load texture"); 103 mPFPoints.bindTexture(loadTexture(R.drawable.flares), 0); 104 105 mPoints = new ScriptField_Point(mRS, PART_COUNT, Allocation.USAGE_SCRIPT); 106 107 Mesh.AllocationBuilder smb = new Mesh.AllocationBuilder(mRS); 108 smb.addVertexAllocation(mPoints.getAllocation()); 109 smb.addIndexSetType(Mesh.Primitive.POINT); 110 Mesh smP = smb.create(); 111 112 mPhysicsScript = new ScriptC_ball_physics(mRS, mRes, R.raw.ball_physics); 113 114 mScript = new ScriptC_balls(mRS, mRes, R.raw.balls); 115 mScript.set_partMesh(smP); 116 mScript.set_physics_script(mPhysicsScript); 117 mScript.bind_point(mPoints); 118 mScript.bind_balls1(new ScriptField_Ball(mRS, PART_COUNT, Allocation.USAGE_SCRIPT)); 119 mScript.bind_balls2(new ScriptField_Ball(mRS, PART_COUNT, Allocation.USAGE_SCRIPT)); 120 121 mScript.set_gPFLines(mPFLines); 122 mScript.set_gPFPoints(mPFPoints); 123 createProgramVertex(); 124 125 mRS.bindProgramStore(BLEND_ADD_DEPTH_NONE(mRS)); 126 127 mPhysicsScript.set_gMinPos(new Float2(5, 5)); 128 mPhysicsScript.set_gMaxPos(new Float2(width - 5, height - 5)); 129 130 mScript.invoke_initParts(width, height); 131 132 mRS.bindRootScript(mScript); 133 } 134 135 public void newTouchPosition(float x, float y, float pressure, int id) { 136 mPhysicsScript.invoke_touch(x, y, pressure, id); 137 } 138 139 public void setAccel(float x, float y) { 140 mPhysicsScript.set_gGravityVector(new Float2(x, y)); 141 } 142 143 } 144
