1 /* 2 * Copyright (C) 2012 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.android.ide.eclipse.gltrace; 18 19 import com.android.ide.eclipse.gldebugger.GLEnum; 20 21 import java.nio.ByteBuffer; 22 import java.nio.ByteOrder; 23 import java.nio.FloatBuffer; 24 import java.nio.IntBuffer; 25 import java.nio.ShortBuffer; 26 27 public class GLUtils { formatData(byte[] data, GLEnum format)28 public static String formatData(byte[] data, GLEnum format) { 29 switch (format) { 30 case GL_BYTE: 31 return formatBytes(data, false); 32 case GL_UNSIGNED_BYTE: 33 return formatBytes(data, true); 34 case GL_SHORT: 35 return formatShorts(data, false); 36 case GL_UNSIGNED_SHORT: 37 return formatShorts(data, true); 38 case GL_FIXED: 39 return formatInts(data); 40 case GL_FLOAT: 41 return formatFloats(data); 42 default: 43 return ""; //$NON-NLS-1$ 44 } 45 } 46 formatFloats(byte[] data)47 private static String formatFloats(byte[] data) { 48 FloatBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer(); 49 50 StringBuilder sb = new StringBuilder(bb.capacity() * 3); 51 52 while (bb.remaining() > 0) { 53 sb.append(String.format("%.4f", bb.get())); 54 sb.append(','); 55 sb.append('\n'); 56 } 57 58 return sb.toString(); 59 } 60 formatInts(byte[] data)61 private static String formatInts(byte[] data) { 62 IntBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asIntBuffer(); 63 64 StringBuilder sb = new StringBuilder(bb.capacity() * 3); 65 66 while (bb.remaining() > 0) { 67 sb.append(bb.get()); 68 sb.append(','); 69 sb.append('\n'); 70 } 71 72 return sb.toString(); 73 } 74 formatShorts(byte[] data, boolean unsigned)75 private static String formatShorts(byte[] data, boolean unsigned) { 76 ShortBuffer bb = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN).asShortBuffer(); 77 78 StringBuilder sb = new StringBuilder(bb.capacity() * 3); 79 80 while (bb.remaining() > 0) { 81 if (unsigned) { 82 sb.append(bb.get() & 0xffff); 83 } else { 84 sb.append(bb.get()); 85 } 86 sb.append(','); 87 sb.append('\n'); 88 } 89 90 return sb.toString(); 91 } 92 formatBytes(byte[] data, boolean unsigned)93 private static String formatBytes(byte[] data, boolean unsigned) { 94 ByteBuffer bb = ByteBuffer.wrap(data); 95 96 StringBuilder sb = new StringBuilder(bb.capacity() * 3); 97 98 while (bb.remaining() > 0) { 99 if (unsigned) { 100 sb.append(bb.get() & 0xff); 101 } else { 102 sb.append(bb.get()); 103 } 104 105 sb.append(','); 106 sb.append('\n'); 107 } 108 109 return sb.toString(); 110 } 111 } 112