1/*
2 * Copyright (C) 2009 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
17import java.io.PrintStream;
18
19/**
20 * Emits a Java interface and Java & C implementation for a C function.
21 *
22 * <p> The Java interface will have Buffer and array variants for functions that
23 * have a typed pointer argument.  The array variant will convert a single "<type> *data"
24 * argument to a pair of arguments "<type>[] data, int offset".
25 */
26public class Jsr239CodeEmitter extends JniCodeEmitter implements CodeEmitter {
27
28    PrintStream mJava10InterfaceStream;
29    PrintStream mJava10ExtInterfaceStream;
30    PrintStream mJava11InterfaceStream;
31    PrintStream mJava11ExtInterfaceStream;
32    PrintStream mJava11ExtPackInterfaceStream;
33    PrintStream mJavaImplStream;
34    PrintStream mCStream;
35
36    PrintStream mJavaInterfaceStream;
37
38    /**
39     * @param java10InterfaceStream the PrintStream to which to emit the Java interface for GL 1.0 functions
40     * @param java10ExtInterfaceStream the PrintStream to which to emit the Java interface for GL 1.0 extension functions
41     * @param java11InterfaceStream the PrintStream to which to emit the Java interface for GL 1.1 functions
42     * @param java11ExtInterfaceStream the PrintStream to which to emit the Java interface for GL 1.1 Extension functions
43     * @param java11ExtPackInterfaceStream the PrintStream to which to emit the Java interface for GL 1.1 Extension Pack functions
44     * @param javaImplStream the PrintStream to which to emit the Java implementation
45     * @param cStream the PrintStream to which to emit the C implementation
46     */
47    public Jsr239CodeEmitter(String classPathName,
48                          ParameterChecker checker,
49                          PrintStream java10InterfaceStream,
50                          PrintStream java10ExtInterfaceStream,
51                          PrintStream java11InterfaceStream,
52                          PrintStream java11ExtInterfaceStream,
53                          PrintStream java11ExtPackInterfaceStream,
54                          PrintStream javaImplStream,
55                          PrintStream cStream,
56                          boolean useContextPointer) {
57        mClassPathName = classPathName;
58        mChecker = checker;
59        mJava10InterfaceStream = java10InterfaceStream;
60        mJava10ExtInterfaceStream = java10ExtInterfaceStream;
61        mJava11InterfaceStream = java11InterfaceStream;
62        mJava11ExtInterfaceStream = java11ExtInterfaceStream;
63        mJava11ExtPackInterfaceStream = java11ExtPackInterfaceStream;
64        mJavaImplStream = javaImplStream;
65        mCStream = cStream;
66        mUseContextPointer = useContextPointer;
67    }
68
69    public void setVersion(int version, boolean ext, boolean pack) {
70        if (version == 0) {
71            mJavaInterfaceStream = ext ? mJava10ExtInterfaceStream :
72                mJava10InterfaceStream;
73        } else if (version == 1) {
74            mJavaInterfaceStream = ext ?
75                (pack ? mJava11ExtPackInterfaceStream :
76                 mJava11ExtInterfaceStream) :
77                mJava11InterfaceStream;
78        } else {
79            throw new RuntimeException("Bad version: " + version);
80        }
81    }
82
83    public void emitCode(CFunc cfunc, String original) {
84        emitCode(cfunc, original, mJavaInterfaceStream, mJavaImplStream, mCStream);
85    }
86
87    public void emitNativeRegistration() {
88        emitNativeRegistration("register_com_google_android_gles_jni_GLImpl", mCStream);
89    }
90}
91