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/*
* Copyright 2012 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 GenerateEGL {
private 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(EGLCodeEmitter emitter,
BufferedReader specReader,
PrintStream glStream,
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();
String stubRoot = "stubs/egl/" + fname;
String javaPath = stubRoot + ".java";
File f = new File(javaPath);
if (f.exists()) {
System.out.println("Special-casing function " + fname);
copy(javaPath, glStream);
copy(stubRoot + ".cpp", cStream);
// Register native function names
// This should be improved to require fewer discrete files
String filename = stubRoot + ".nativeReg";
BufferedReader br =
new BufferedReader(new FileReader(filename));
String nfunc;
while ((nfunc = br.readLine()) != null) {
emitter.addNativeRegistration(nfunc);
}
} else {
emitter.emitCode(cfunc, s);
}
}
}
public static void main(String[] args) throws Exception {
int aidx = 0;
while ((aidx < args.length) && (args[aidx].charAt(0) == '-')) {
switch (args[aidx].charAt(1)) {
default:
System.err.println("Unknown flag: " + args[aidx]);
System.exit(1);
}
aidx++;
}
BufferedReader checksReader =
new BufferedReader(new FileReader("specs/egl/checks.spec"));
ParameterChecker checker = new ParameterChecker(checksReader);
BufferedReader specReader =
new BufferedReader(new FileReader("specs/egl/EGL14.spec"));
String egljFilename = "android/opengl/EGL14.java";
String eglcFilename = "android_opengl_EGL14.cpp";
PrintStream egljStream =
new PrintStream(new FileOutputStream("out/" + egljFilename));
PrintStream eglcStream =
new PrintStream(new FileOutputStream("out/" + eglcFilename));
egljStream.println("/*");
eglcStream.println("/*");
copy("stubs/egl/EGL14Header.java-if", egljStream);
copy("stubs/egl/EGL14cHeader.cpp", eglcStream);
EGLCodeEmitter emitter = new EGLCodeEmitter(
"android/opengl/EGL14",
checker, egljStream, eglcStream);
emit(emitter, specReader, egljStream, eglcStream);
emitter.emitNativeRegistration("register_android_opengl_jni_EGL14");
egljStream.println("}");
egljStream.close();
eglcStream.close();
}
}
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