1 /* 2 * Copyright (C) 2006 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 import java.io.BufferedReader; 18 import java.io.File; 19 import java.io.FileOutputStream; 20 import java.io.FileReader; 21 import java.io.IOException; 22 import java.io.PrintStream; 23 24 public class GenerateGL { 25 26 static void copy(String filename, PrintStream out) throws IOException { 27 BufferedReader br = new BufferedReader(new FileReader(filename)); 28 String s; 29 while ((s = br.readLine()) != null) { 30 out.println(s); 31 } 32 } 33 34 private static void emit(int version, boolean ext, boolean pack, 35 CodeEmitter emitter, 36 BufferedReader specReader, 37 PrintStream glStream, 38 PrintStream glImplStream, 39 PrintStream cStream) throws Exception { 40 String s = null; 41 while ((s = specReader.readLine()) != null) { 42 if (s.trim().startsWith("//")) { 43 continue; 44 } 45 46 CFunc cfunc = CFunc.parseCFunc(s); 47 48 String fname = cfunc.getName(); 49 File f = new File("stubs/jsr239/" + fname + 50 ".java-1" + version + "-if"); 51 if (f.exists()) { 52 System.out.println("Special-casing function " + fname); 53 copy("stubs/jsr239/" + fname + 54 ".java-1" + version + "-if", glStream); 55 copy("stubs/jsr239/" + fname + ".java-impl", glImplStream); 56 copy("stubs/jsr239/" + fname + ".cpp", cStream); 57 58 // Register native function names 59 // This should be improved to require fewer discrete files 60 String filename = "stubs/jsr239/" + fname + ".nativeReg"; 61 BufferedReader br = 62 new BufferedReader(new FileReader(filename)); 63 String nfunc; 64 while ((nfunc = br.readLine()) != null) { 65 emitter.addNativeRegistration(nfunc); 66 } 67 } else { 68 emitter.setVersion(version, ext, pack); 69 emitter.emitCode(cfunc, s); 70 } 71 } 72 } 73 74 public static void main(String[] args) throws Exception { 75 String classPathName = "com/google/android/gles_jni/GLImpl"; 76 boolean useContextPointer = true; 77 78 int aidx = 0; 79 while (args[aidx].charAt(0) == '-') { 80 switch (args[aidx].charAt(1)) { 81 case 'c': 82 useContextPointer = false; 83 break; 84 85 default: 86 System.err.println("Unknown flag: " + args[aidx]); 87 System.exit(1); 88 } 89 90 aidx++; 91 } 92 93 System.out.println("useContextPointer = " + useContextPointer); 94 95 BufferedReader spec10Reader = 96 new BufferedReader(new FileReader(args[aidx++])); 97 BufferedReader spec10ExtReader = 98 new BufferedReader(new FileReader(args[aidx++])); 99 BufferedReader spec11Reader = 100 new BufferedReader(new FileReader(args[aidx++])); 101 BufferedReader spec11ExtReader = 102 new BufferedReader(new FileReader(args[aidx++])); 103 BufferedReader spec11ExtPackReader = 104 new BufferedReader(new FileReader(args[aidx++])); 105 BufferedReader checksReader = 106 new BufferedReader(new FileReader(args[aidx++])); 107 108 String gl10Filename = "javax/microedition/khronos/opengles/GL10.java"; 109 String gl10ExtFilename = 110 "javax/microedition/khronos/opengles/GL10Ext.java"; 111 String gl11Filename = "javax/microedition/khronos/opengles/GL11.java"; 112 String gl11ExtFilename = 113 "javax/microedition/khronos/opengles/GL11Ext.java"; 114 String gl11ExtPackFilename = 115 "javax/microedition/khronos/opengles/GL11ExtensionPack.java"; 116 String glImplFilename = "com/google/android/gles_jni/GLImpl.java"; 117 String cFilename = "com_google_android_gles_jni_GLImpl.cpp"; 118 119 PrintStream gl10Stream = 120 new PrintStream(new FileOutputStream("out/" + gl10Filename)); 121 PrintStream gl10ExtStream = 122 new PrintStream(new FileOutputStream("out/" + gl10ExtFilename)); 123 PrintStream gl11Stream = 124 new PrintStream(new FileOutputStream("out/" + gl11Filename)); 125 PrintStream gl11ExtStream = 126 new PrintStream(new FileOutputStream("out/" + gl11ExtFilename)); 127 PrintStream gl11ExtPackStream = 128 new PrintStream(new FileOutputStream("out/" + gl11ExtPackFilename)); 129 PrintStream glImplStream = 130 new PrintStream(new FileOutputStream("out/" + glImplFilename)); 131 PrintStream cStream = 132 new PrintStream(new FileOutputStream("out/" + cFilename)); 133 134 ParameterChecker checker = new ParameterChecker(checksReader); 135 136 CodeEmitter emitter = 137 new Jsr239CodeEmitter(classPathName, 138 checker, 139 gl10Stream, gl10ExtStream, 140 gl11Stream, gl11ExtStream, gl11ExtPackStream, 141 glImplStream, cStream, 142 useContextPointer); 143 144 gl10Stream.println("/* //device/java/android/" + gl10Filename); 145 gl10ExtStream.println("/* //device/java/android/" + gl10ExtFilename); 146 gl11Stream.println("/* //device/java/android/" + gl11Filename); 147 gl11ExtStream.println("/* //device/java/android/" + gl11ExtFilename); 148 gl11ExtPackStream.println("/* //device/java/android/" + 149 gl11ExtPackFilename); 150 glImplStream.println("/* //device/java/android/" + glImplFilename); 151 cStream.println("/* //device/libs/android_runtime/" + cFilename); 152 153 copy("stubs/jsr239/GL10Header.java-if", gl10Stream); 154 copy("stubs/jsr239/GL10ExtHeader.java-if", gl10ExtStream); 155 copy("stubs/jsr239/GL11Header.java-if", gl11Stream); 156 copy("stubs/jsr239/GL11ExtHeader.java-if", gl11ExtStream); 157 copy("stubs/jsr239/GL11ExtensionPackHeader.java-if", gl11ExtPackStream); 158 copy("stubs/jsr239/GLImplHeader.java-impl", glImplStream); 159 copy("stubs/jsr239/GLCHeader.cpp", cStream); 160 161 emit(0, false, false, 162 emitter, spec10Reader, gl10Stream, glImplStream, cStream); 163 emit(0, true, false, 164 emitter, spec10ExtReader, gl10ExtStream, glImplStream, cStream); 165 emit(1, false, false, 166 emitter, spec11Reader, gl11Stream, glImplStream, cStream); 167 emit(1, true, false, 168 emitter, spec11ExtReader, gl11ExtStream, glImplStream, cStream); 169 emit(1, true, true, 170 emitter, spec11ExtPackReader, gl11ExtPackStream, glImplStream, 171 cStream); 172 173 emitter.emitNativeRegistration(); 174 175 gl10Stream.println("}"); 176 gl10ExtStream.println("}"); 177 gl11Stream.println("}"); 178 gl11ExtStream.println("}"); 179 gl11ExtPackStream.println("}"); 180 glImplStream.println("}"); 181 } 182 } 183
