コード例 #1
0
  private static boolean generateBufferParameterAddress(
      TypeMap type_map,
      PrintWriter writer,
      MethodDeclaration method,
      ParameterDeclaration param,
      Mode mode,
      boolean loopDeclared) {
    NativeTypeTranslator translator = new NativeTypeTranslator(type_map, param);
    param.getType().accept(translator);
    writer.print("\t" + translator.getSignature() + param.getSimpleName());
    writer.print(BUFFER_ADDRESS_POSTFIX + " = ((");
    writer.print(translator.getSignature());
    Check check_annotation = param.getAnnotation(Check.class);
    writer.print(")");
    if (mode == Mode.BUFFEROBJECT && param.getAnnotation(BufferObject.class) != null) {
      writer.print(
          "offsetToPointer("
              + param.getSimpleName()
              + Utils.BUFFER_OBJECT_PARAMETER_POSTFIX
              + "))");
    } else {
      Class java_type = Utils.getJavaType(param.getType());
      if (Buffer.class.isAssignableFrom(java_type)
          || java_type.equals(CharSequence.class)
          || java_type.equals(CharSequence[].class)) {
        boolean explicitly_byte_sized =
            java_type.equals(Buffer.class)
                || translator.getAnnotationType().equals(type_map.getVoidType());
        if (explicitly_byte_sized) writer.print("(((char *)");
        if (method.getAnnotation(GenerateAutos.class) != null
            || (check_annotation != null && check_annotation.canBeNull())) {
          writer.print("safeGetBufferAddress(env, " + param.getSimpleName());
        } else {
          writer.print("(*env)->GetDirectBufferAddress(env, " + param.getSimpleName());
        }
        writer.print("))");
        writer.print(" + " + param.getSimpleName() + BUFFER_POSITION_POSTFIX);
        if (explicitly_byte_sized) writer.print("))");
      } else if (java_type.equals(String.class)) {
        writer.print("GetStringNativeChars(env, " + param.getSimpleName() + "))");
      } else throw new RuntimeException("Illegal type " + java_type);
    }
    writer.println(";");

    if (param.getAnnotation(StringList.class) != null) {
      if (Utils.getJavaType(param.getType()) != CharSequence[].class
          && (param.getAnnotation(GLchar.class) == null
              || param.getAnnotation(NullTerminated.class) == null
              || param.getAnnotation(NullTerminated.class).value().length() == 0))
        throw new RuntimeException(
            "StringList annotation can only be applied on null-terminated GLchar buffers.");

      if ("_str".equals(param.getSimpleName()))
        throw new RuntimeException(
            "The name '_str' is not valid for arguments annotated with StringList");

      // Declare loop counters and allocate string array
      if (!loopDeclared) {
        writer.println("\tunsigned int _str_i;");
        writer.println("\tGLchar *_str_address;");
        loopDeclared = true;
      }
      writer.println(
          "\tGLchar **"
              + param.getSimpleName()
              + STRING_LIST_POSTFIX
              + " = (GLchar **) malloc("
              + param.getAnnotation(StringList.class).value()
              + "*sizeof(GLchar*));");
    }
    return loopDeclared;
  }