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/*
* Copyright (C) 2006 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.
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
public class GenerateGL {
static void copy(String filename, PrintStream out) throws IOException {
BufferedReader br = new BufferedReader(new FileReader(filename));
String s;
while ((s = br.readLine()) != null) {
out.println(s);
}
}
private static void emit(int version, boolean ext, boolean pack,
CodeEmitter emitter,
BufferedReader specReader,
PrintStream glStream,
PrintStream glImplStream,
PrintStream cStream) throws Exception {
String s = null;
while ((s = specReader.readLine()) != null) {
if (s.trim().startsWith("//")) {
continue;
}
CFunc cfunc = CFunc.parseCFunc(s);
String fname = cfunc.getName();
File f = new File("stubs/jsr239/" + fname +
".java-1" + version + "-if");
if (f.exists()) {
System.out.println("Special-casing function " + fname);
copy("stubs/jsr239/" + fname +
".java-1" + version + "-if", glStream);
copy("stubs/jsr239/" + fname + ".java-impl", glImplStream);
copy("stubs/jsr239/" + fname + ".cpp", cStream);
// Register native function names
// This should be improved to require fewer discrete files
String filename = "stubs/jsr239/" + fname + ".nativeReg";
BufferedReader br =
new BufferedReader(new FileReader(filename));
String nfunc;
while ((nfunc = br.readLine()) != null) {
emitter.addNativeRegistration(nfunc);
}
} else {
emitter.setVersion(version, ext, pack);
emitter.emitCode(cfunc, s);
}
}
}
public static void main(String[] args) throws Exception {
String classPathName = "com/google/android/gles_jni/GLImpl";
boolean useContextPointer = true;
int aidx = 0;
while (args[aidx].charAt(0) == '-') {
switch (args[aidx].charAt(1)) {
case 'c':
useContextPointer = false;
break;
default:
System.err.println("Unknown flag: " + args[aidx]);
System.exit(1);
}
aidx++;
}
System.out.println("useContextPointer = " + useContextPointer);
BufferedReader spec10Reader =
new BufferedReader(new FileReader(args[aidx++]));
BufferedReader spec10ExtReader =
new BufferedReader(new FileReader(args[aidx++]));
BufferedReader spec11Reader =
new BufferedReader(new FileReader(args[aidx++]));
BufferedReader spec11ExtReader =
new BufferedReader(new FileReader(args[aidx++]));
BufferedReader spec11ExtPackReader =
new BufferedReader(new FileReader(args[aidx++]));
BufferedReader checksReader =
new BufferedReader(new FileReader(args[aidx++]));
String gl10Filename = "javax/microedition/khronos/opengles/GL10.java";
String gl10ExtFilename =
"javax/microedition/khronos/opengles/GL10Ext.java";
String gl11Filename = "javax/microedition/khronos/opengles/GL11.java";
String gl11ExtFilename =
"javax/microedition/khronos/opengles/GL11Ext.java";
String gl11ExtPackFilename =
"javax/microedition/khronos/opengles/GL11ExtensionPack.java";
String glImplFilename = "com/google/android/gles_jni/GLImpl.java";
String cFilename = "com_google_android_gles_jni_GLImpl.cpp";
PrintStream gl10Stream =
new PrintStream(new FileOutputStream("out/" + gl10Filename));
PrintStream gl10ExtStream =
new PrintStream(new FileOutputStream("out/" + gl10ExtFilename));
PrintStream gl11Stream =
new PrintStream(new FileOutputStream("out/" + gl11Filename));
PrintStream gl11ExtStream =
new PrintStream(new FileOutputStream("out/" + gl11ExtFilename));
PrintStream gl11ExtPackStream =
new PrintStream(new FileOutputStream("out/" + gl11ExtPackFilename));
PrintStream glImplStream =
new PrintStream(new FileOutputStream("out/" + glImplFilename));
PrintStream cStream =
new PrintStream(new FileOutputStream("out/" + cFilename));
ParameterChecker checker = new ParameterChecker(checksReader);
CodeEmitter emitter =
new Jsr239CodeEmitter(classPathName,
checker,
gl10Stream, gl10ExtStream,
gl11Stream, gl11ExtStream, gl11ExtPackStream,
glImplStream, cStream,
useContextPointer);
gl10Stream.println("/* //device/java/android/" + gl10Filename);
gl10ExtStream.println("/* //device/java/android/" + gl10ExtFilename);
gl11Stream.println("/* //device/java/android/" + gl11Filename);
gl11ExtStream.println("/* //device/java/android/" + gl11ExtFilename);
gl11ExtPackStream.println("/* //device/java/android/" +
gl11ExtPackFilename);
glImplStream.println("/* //device/java/android/" + glImplFilename);
cStream.println("/* //device/libs/android_runtime/" + cFilename);
copy("stubs/jsr239/GL10Header.java-if", gl10Stream);
copy("stubs/jsr239/GL10ExtHeader.java-if", gl10ExtStream);
copy("stubs/jsr239/GL11Header.java-if", gl11Stream);
copy("stubs/jsr239/GL11ExtHeader.java-if", gl11ExtStream);
copy("stubs/jsr239/GL11ExtensionPackHeader.java-if", gl11ExtPackStream);
copy("stubs/jsr239/GLImplHeader.java-impl", glImplStream);
copy("stubs/jsr239/GLCHeader.cpp", cStream);
emit(0, false, false,
emitter, spec10Reader, gl10Stream, glImplStream, cStream);
emit(0, true, false,
emitter, spec10ExtReader, gl10ExtStream, glImplStream, cStream);
emit(1, false, false,
emitter, spec11Reader, gl11Stream, glImplStream, cStream);
emit(1, true, false,
emitter, spec11ExtReader, gl11ExtStream, glImplStream, cStream);
emit(1, true, true,
emitter, spec11ExtPackReader, gl11ExtPackStream, glImplStream,
cStream);
emitter.emitNativeRegistration();
gl10Stream.println("}");
gl10ExtStream.println("}");
gl11Stream.println("}");
gl11ExtStream.println("}");
gl11ExtPackStream.println("}");
glImplStream.println("}");
}
}
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