dbg_helpers.cpp

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00001 /* $Id: dbg_helpers.cpp 20283 2010-08-01 19:22:34Z frosch $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "../stdafx.h"
00013 #include "../rail_map.h"
00014 #include "dbg_helpers.h"
00015 
00017 static const char * const trackdir_names[] = {
00018   "NE", "SE", "UE", "LE", "LS", "RS", "rne", "rse",
00019   "SW", "NW", "UW", "LW", "LN", "RN", "rsw", "rnw",
00020 };
00021 
00023 CStrA ValueStr(Trackdir td)
00024 {
00025   CStrA out;
00026   out.Format("%d (%s)", td, ItemAtT(td, trackdir_names, "UNK", INVALID_TRACKDIR, "INV"));
00027   return out.Transfer();
00028 }
00029 
00031 CStrA ValueStr(TrackdirBits td_bits)
00032 {
00033   CStrA out;
00034   out.Format("%d (%s)", td_bits, ComposeNameT(td_bits, trackdir_names, "UNK", INVALID_TRACKDIR_BIT, "INV").Data());
00035   return out.Transfer();
00036 }
00037 
00038 
00040 static const char * const diagdir_names[] = {
00041   "NE", "SE", "SW", "NW",
00042 };
00043 
00045 CStrA ValueStr(DiagDirection dd)
00046 {
00047   CStrA out;
00048   out.Format("%d (%s)", dd, ItemAtT(dd, diagdir_names, "UNK", INVALID_DIAGDIR, "INV"));
00049   return out.Transfer();
00050 }
00051 
00052 
00054 static const char * const signal_type_names[] = {
00055   "NORMAL", "ENTRY", "EXIT", "COMBO", "PBS", "NOENTRY",
00056 };
00057 
00059 CStrA ValueStr(SignalType t)
00060 {
00061   CStrA out;
00062   out.Format("%d (%s)", t, ItemAtT(t, signal_type_names, "UNK"));
00063   return out.Transfer();
00064 }
00065 
00066 
00068 CStrA TileStr(TileIndex tile)
00069 {
00070   CStrA out;
00071   out.Format("0x%04X (%d, %d)", tile, TileX(tile), TileY(tile));
00072   return out.Transfer();
00073 }
00074  size_t& DumpTarget::LastTypeId()
00078 {
00079   static size_t last_type_id = 0;
00080   return last_type_id;
00081 }
00082 
00084 CStrA DumpTarget::GetCurrentStructName()
00085 {
00086   CStrA out;
00087   if (!m_cur_struct.empty()) {
00088     /* we are inside some named struct, return its name */
00089     out = m_cur_struct.top();
00090   }
00091   return out.Transfer();
00092 }
00093 
00098 bool DumpTarget::FindKnownName(size_t type_id, const void *ptr, CStrA &name)
00099 {
00100   KNOWN_NAMES::const_iterator it = m_known_names.find(KnownStructKey(type_id, ptr));
00101   if (it != m_known_names.end()) {
00102     /* we have found it */
00103     name = (*it).second;
00104     return true;
00105   }
00106   return false;
00107 }
00108 
00110 void DumpTarget::WriteIndent()
00111 {
00112   int num_spaces = 2 * m_indent;
00113   if (num_spaces > 0) {
00114     memset(m_out.GrowSizeNC(num_spaces), ' ', num_spaces);
00115   }
00116 }
00117 
00119 void DumpTarget::WriteLine(const char *format, ...)
00120 {
00121   WriteIndent();
00122   va_list args;
00123   va_start(args, format);
00124   m_out.AddFormatL(format, args);
00125   va_end(args);
00126   m_out.AppendStr("\n");
00127 }
00128 
00130 void DumpTarget::WriteValue(const char *name, const char *value_str)
00131 {
00132   WriteIndent();
00133   m_out.AddFormat("%s = %s\n", name, value_str);
00134 }
00135 
00137 void DumpTarget::WriteTile(const char *name, TileIndex tile)
00138 {
00139   WriteIndent();
00140   m_out.AddFormat("%s = %s\n", name, TileStr(tile).Data());
00141 }
00142 
00146 void DumpTarget::BeginStruct(size_t type_id, const char *name, const void *ptr)
00147 {
00148   /* make composite name */
00149   CStrA cur_name = GetCurrentStructName().Transfer();
00150   if (cur_name.Size() > 0) {
00151     /* add name delimiter (we use structured names) */
00152     cur_name.AppendStr(".");
00153   }
00154   cur_name.AppendStr(name);
00155 
00156   /* put the name onto stack (as current struct name) */
00157   m_cur_struct.push(cur_name);
00158 
00159   /* put it also to the map of known structures */
00160   m_known_names.insert(KNOWN_NAMES::value_type(KnownStructKey(type_id, ptr), cur_name));
00161 
00162   WriteIndent();
00163   m_out.AddFormat("%s = {\n", name);
00164   m_indent++;
00165 }
00166 
00170 void DumpTarget::EndStruct()
00171 {
00172   m_indent--;
00173   WriteIndent();
00174   m_out.AddFormat("}\n");
00175 
00176   /* remove current struct name from the stack */
00177   m_cur_struct.pop();
00178 }
00179 
00181 /* static */ ByteBlob::BlobHeader ByteBlob::hdrEmpty[] = {{0, 0}, {0, 0}};

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