opengl/libs/tools/gltracegen

#! /usr/bin/perl
#
# Copyright (C) 2010 Google Inc.
#
# 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.

use strict;

sub rtrim($)
{
    my $string = shift;
    $string =~ s/\s+$//;
    return $string;
}

while (my $line = <>) {
  next if $line =~ /^\//;
  next if $line =~ /^#/;
  next if $line =~ /^\s*$/;
  if ($line !~ /^GL_ENTRY\(([^,]+), ([^,]+), ([^\)]+)\)/) {
    next;
  }
  my $type = $1;
  my $name = $2;
  my $args = $3;
  
  my @args = split ',', $args;
  my $len = scalar(@args);
  my $nonVoidArgLen = 0;
  for (my $num = 0; $num < $len; $num++) {
    if ($args[$num] ne "void") {
      $nonVoidArgLen++;
    }
  }
  if ($type eq "void") {
    printf("TRACE_GL_VOID(");
  } else {
    printf("TRACE_GL(%s, ", $type);
  }
  
  printf("%s, (%s), (", $name, $args);
    for (my $num = 0; $num < $len; $num++) {
    if ($args[$num] ne "void") {
      if ($num > 0) {
        print ", ";
      }
      #
      # extract the name from the parameter
      # type name
      # const type *name
      # type *name
      # type name[4]
      #
      if ($args[$num] =~ /(\S+\s)+\**\s*([\w]+)/) {
        printf("%s", $2);
      }
    }
  }
  printf("), %d", $nonVoidArgLen);
  for (my $num = 0; $num < $len; $num++) {
    if ($args[$num] ne "void") {
      #
      # extract the name from the parameter
      # type name
      # const type *name
      # type *name
      # type name[4]
      #
      my $arg = $args[$num];
      if ($arg =~ /(\S+\s)+\**\s*([\w]+)/) {
        my $name = $2;
        if ($arg =~ /((const )*(\S+\s)+\**)\s*([\w]+)/) {
          my $type = rtrim($1);
          printf(", \"%s\", %s", $type, $name);
        }
      }
    }
  }
  printf(")\n");
}