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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 GenerateGLES {
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(GLESCodeEmitter 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/gles11/" + 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/gles11/checks.spec"));
ParameterChecker checker = new ParameterChecker(checksReader);
// Generate files
for(String suffix: new String[] {"GLES10", "GLES10Ext",
"GLES11", "GLES11Ext", "GLES20"})
{
BufferedReader spec11Reader =
new BufferedReader(new FileReader("specs/gles11/"
+ suffix + ".spec"));
String gl11Filename = "android/opengl/" + suffix + ".java";
String gl11cFilename = "android_opengl_" + suffix + ".cpp";
PrintStream gl11Stream =
new PrintStream(new FileOutputStream("out/" + gl11Filename));
PrintStream gl11cStream =
new PrintStream(new FileOutputStream("out/" + gl11cFilename));
gl11Stream.println("/*");
gl11cStream.println("/*");
copy("stubs/gles11/" + suffix + "Header.java-if", gl11Stream);
copy("stubs/gles11/" + suffix + "cHeader.cpp", gl11cStream);
GLESCodeEmitter emitter = new GLESCodeEmitter(
"android/opengl/" + suffix,
checker, gl11Stream, gl11cStream);
emit(emitter, spec11Reader, gl11Stream, gl11cStream);
emitter.emitNativeRegistration("register_android_opengl_jni_"
+ suffix);
gl11Stream.println("}");
gl11Stream.close();
gl11cStream.close();
}
}
}
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