| /* |
| * 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.balls; |
| |
| import android.content.res.Resources; |
| import android.renderscript.*; |
| import android.util.Log; |
| |
| |
| public class BallsRS { |
| public static final int PART_COUNT = 4000; |
| |
| public BallsRS() { |
| } |
| |
| private Resources mRes; |
| private RenderScriptGL mRS; |
| private ScriptC_balls mScript; |
| private ScriptC_ball_physics mPhysicsScript; |
| private ProgramFragment mPFPoints; |
| private ScriptField_Point mPoints; |
| private ScriptField_VpConsts mVpConsts; |
| private ScriptField_BallGrid mGrid; |
| private ScriptField_Ball mBalls; |
| private Allocation mGridCache; |
| |
| void updateProjectionMatrices() { |
| mVpConsts = new ScriptField_VpConsts(mRS, 1, |
| Allocation.USAGE_SCRIPT | |
| Allocation.USAGE_GRAPHICS_CONSTANTS); |
| ScriptField_VpConsts.Item i = new ScriptField_VpConsts.Item(); |
| Matrix4f mvp = new Matrix4f(); |
| mvp.loadOrtho(0, mRS.getWidth(), mRS.getHeight(), 0, -1, 1); |
| i.MVP = mvp; |
| mVpConsts.set(i, 0, true); |
| } |
| |
| private void createProgramVertex() { |
| updateProjectionMatrices(); |
| |
| ProgramVertex.Builder sb = new ProgramVertex.Builder(mRS); |
| String t = "varying vec4 varColor;\n" + |
| "void main() {\n" + |
| " vec4 pos = vec4(0.0, 0.0, 0.0, 1.0);\n" + |
| " pos.xy = ATTRIB_position;\n" + |
| " gl_Position = UNI_MVP * pos;\n" + |
| " varColor = ATTRIB_color;\n" + |
| " gl_PointSize = 12.0;\n" + |
| "}\n"; |
| sb.setShader(t); |
| sb.addConstant(mVpConsts.getType()); |
| sb.addInput(mPoints.getElement()); |
| ProgramVertex pvs = sb.create(); |
| pvs.bindConstants(mVpConsts.getAllocation(), 0); |
| mRS.bindProgramVertex(pvs); |
| } |
| |
| private Allocation loadTexture(int id) { |
| final Allocation allocation = |
| Allocation.createFromBitmapResource(mRS, mRes, |
| id, Allocation.MipmapControl.MIPMAP_NONE, |
| Allocation.USAGE_GRAPHICS_TEXTURE); |
| return allocation; |
| } |
| |
| ProgramStore BLEND_ADD_DEPTH_NONE(RenderScript rs) { |
| ProgramStore.Builder builder = new ProgramStore.Builder(rs); |
| builder.setDepthFunc(ProgramStore.DepthFunc.ALWAYS); |
| builder.setBlendFunc(ProgramStore.BlendSrcFunc.ONE, ProgramStore.BlendDstFunc.ONE); |
| builder.setDitherEnabled(false); |
| builder.setDepthMaskEnabled(false); |
| return builder.create(); |
| } |
| |
| private void createPF(int width, int height) { |
| ProgramFragmentFixedFunction.Builder pfb = new ProgramFragmentFixedFunction.Builder(mRS); |
| pfb.setPointSpriteTexCoordinateReplacement(true); |
| pfb.setTexture(ProgramFragmentFixedFunction.Builder.EnvMode.MODULATE, |
| ProgramFragmentFixedFunction.Builder.Format.RGBA, 0); |
| pfb.setVaryingColor(true); |
| mPFPoints = pfb.create(); |
| } |
| |
| public void init(RenderScriptGL rs, Resources res, int width, int height) { |
| mRS = rs; |
| mRes = res; |
| |
| createPF(width, height); |
| |
| mPFPoints.bindTexture(loadTexture(R.drawable.flares), 0); |
| |
| mPoints = new ScriptField_Point(mRS, PART_COUNT, Allocation.USAGE_SCRIPT); |
| |
| Mesh.AllocationBuilder smb = new Mesh.AllocationBuilder(mRS); |
| smb.addVertexAllocation(mPoints.getAllocation()); |
| smb.addIndexSetType(Mesh.Primitive.POINT); |
| Mesh smP = smb.create(); |
| |
| mGrid = ScriptField_BallGrid.create2D(mRS, (width + 99) / 100, (height + 99) / 100); |
| mGridCache = Allocation.createSized(mRS, Element.F32_2(mRS), PART_COUNT); |
| mBalls = new ScriptField_Ball(mRS, PART_COUNT, Allocation.USAGE_SCRIPT); |
| |
| mPhysicsScript = new ScriptC_ball_physics(mRS); |
| mPhysicsScript.set_gGridCache(mGridCache); |
| mPhysicsScript.set_gBalls(mBalls.getAllocation()); |
| |
| mScript = new ScriptC_balls(mRS); |
| mScript.set_partMesh(smP); |
| mScript.set_physics_script(mPhysicsScript); |
| mScript.bind_point(mPoints); |
| mScript.bind_balls(mBalls); |
| mScript.set_gGrid(mGrid.getAllocation()); |
| mScript.bind_gGridCache(mGridCache); |
| |
| mScript.set_gPFPoints(mPFPoints); |
| createProgramVertex(); |
| |
| mRS.bindProgramStore(BLEND_ADD_DEPTH_NONE(mRS)); |
| |
| mPhysicsScript.set_gMinPos(new Float2(5, 5)); |
| mPhysicsScript.set_gMaxPos(new Float2(width - 5, height - 5)); |
| mPhysicsScript.set_gGrid(mGrid.getAllocation()); |
| |
| mScript.invoke_initParts(width, height); |
| |
| mRS.bindRootScript(mScript); |
| } |
| |
| public void newTouchPosition(float x, float y, float pressure, int id) { |
| mPhysicsScript.invoke_touch(x, y, pressure * mRS.getWidth() / 1280, id); |
| } |
| |
| public void setAccel(float x, float y) { |
| mPhysicsScript.set_gGravityVector(new Float2(x, y)); |
| } |
| |
| } |