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/**************************************************************************
*
* Copyright 2014 Lunarg, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
**************************************************************************/
#include <fstream>
#include <string>
#include <map>
#include <string.h>
#include <xglLayer.h>
#include "layers_config.h"
#define MAX_CHARS_PER_LINE 4096
class ConfigFile
{
public:
ConfigFile();
~ConfigFile();
const char *getOption(const std::string &_option);
void setOption(const std::string &_option, const std::string &_val);
private:
bool m_fileIsParsed;
std::map<std::string, std::string> m_valueMap;
void parseFile(const char *filename);
};
static ConfigFile g_configFileObj;
static unsigned int convertStringEnumVal(const char *_enum)
{
// only handles single enum values
if (!strcmp(_enum, "XGL_DBG_LAYER_ACTION_IGNORE"))
return XGL_DBG_LAYER_ACTION_IGNORE;
else if (!strcmp(_enum, "XGL_DBG_LAYER_ACTION_CALLBACK"))
return XGL_DBG_LAYER_ACTION_CALLBACK;
else if (!strcmp(_enum, "XGL_DBG_LAYER_ACTION_LOG_MSG"))
return XGL_DBG_LAYER_ACTION_LOG_MSG;
else if (!strcmp(_enum, "XGL_DBG_LAYER_ACTION_BREAK"))
return XGL_DBG_LAYER_ACTION_BREAK;
else if (!strcmp(_enum, "XGL_DBG_LAYER_LEVEL_INFO"))
return XGL_DBG_LAYER_LEVEL_INFO;
else if (!strcmp(_enum, "XGL_DBG_LAYER_LEVEL_WARN"))
return XGL_DBG_LAYER_LEVEL_WARN;
else if (!strcmp(_enum, "XGL_DBG_LAYER_LEVEL_PERF_WARN"))
return XGL_DBG_LAYER_LEVEL_PERF_WARN;
else if (!strcmp(_enum, "XGL_DBG_LAYER_LEVEL_ERROR"))
return XGL_DBG_LAYER_LEVEL_ERROR;
else if (!strcmp(_enum, "XGL_DBG_LAYER_LEVEL_NONE"))
return XGL_DBG_LAYER_LEVEL_NONE;
return 0;
}
const char *getLayerOption(const char *_option)
{
return g_configFileObj.getOption(_option);
}
void setLayerOptionEnum(const char *_option, const char *_valEnum)
{
unsigned int val = convertStringEnumVal(_valEnum);
char strVal[24];
snprintf(strVal, 24, "%u", val);
g_configFileObj.setOption(_option, strVal);
}
void setLayerOption(const char *_option, const char *_val)
{
g_configFileObj.setOption(_option, _val);
}
ConfigFile::ConfigFile() : m_fileIsParsed(false)
{
}
ConfigFile::~ConfigFile()
{
}
const char *ConfigFile::getOption(const std::string &_option)
{
std::map<std::string, std::string>::const_iterator it;
if (!m_fileIsParsed)
{
parseFile("xgl_layer_settings.txt");
}
if ((it = m_valueMap.find(_option)) == m_valueMap.end())
return NULL;
else
return it->second.c_str();
}
void ConfigFile::setOption(const std::string &_option, const std::string &_val)
{
if (!m_fileIsParsed)
{
parseFile("xgl_layer_settings.txt");
}
m_valueMap[_option] = _val;
}
void ConfigFile::parseFile(const char *filename)
{
std::ifstream file;
char buf[MAX_CHARS_PER_LINE];
m_fileIsParsed = true;
m_valueMap.clear();
file.open(filename);
if (!file.good())
return;
// read tokens from the file and form option, value pairs
file.getline(buf, MAX_CHARS_PER_LINE);
while (!file.eof())
{
char option[512];
char value[512];
char *pComment;
//discard any comments delimited by '#' in the line
pComment = strchr(buf, '#');
if (pComment)
*pComment = '\0';
if (sscanf(buf, " %511[^\n\t =] = %511[^\n \t]", option, value) == 2)
{
std::string optStr(option);
std::string valStr(value);
m_valueMap[optStr] = valStr;
}
file.getline(buf, MAX_CHARS_PER_LINE);
}
}
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