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// OpenCSG - library for image-based CSG rendering for OpenGL
// Copyright (C) 2006-2026, Florian Kirsch
//
// This library 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; either version 2 of the License, or
// (at your option) any later version.
//
// This library 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. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110 - 1301 USA.
//
// settings.cpp
//
#include "opencsgConfig.h"
#include <opencsg.h>
#include <algorithm>
#include <list>
#include <string>
#include <utility>
namespace OpenCSG {
// Stores constant strings of all vertex shaders that were ever provided to OpenCSG.
// This would compile with std::set as well. But I expect very few shaders here, only.
// Note that std::vector would be incorrect, because when resizing the vector,
// the strings could be relocated. This must not happen, because the string pointers
// are used as keys for the actual GLSL program IDs.
typedef std::list<std::string> VertexShaders;
static VertexShaders gVertexShaders;
static VertexShaders::iterator gCurrentVertexShader = gVertexShaders.end();
void setVertexShader(const std::string& vertexShader)
{
if (vertexShader.length() == 0)
{
gCurrentVertexShader = gVertexShaders.end();
return;
}
if (gCurrentVertexShader != gVertexShaders.end() && *gCurrentVertexShader == vertexShader)
return;
VertexShaders::iterator it = std::find(gVertexShaders.begin(), gVertexShaders.end(), vertexShader);
if (it != gVertexShaders.end())
{
gCurrentVertexShader = it;
return;
}
gCurrentVertexShader = gVertexShaders.insert(it, vertexShader);
}
const char* getVertexShader()
{
if (gCurrentVertexShader == gVertexShaders.end())
return 0;
return gCurrentVertexShader->c_str();
}
static int* gSetting = 0;
static void initIntOptions() {
if (!gSetting) {
gSetting = new int[OptionTypeUnused];
for (int i=0; i<OptionTypeUnused; ++i) {
gSetting[i] = 0;
}
}
}
void setOption(OptionType option, int newSetting) {
if ((unsigned int)option < OptionTypeUnused) {
initIntOptions();
gSetting[option] = newSetting;
}
}
int getOption(OptionType option) {
initIntOptions();
if ((unsigned int)option < OptionTypeUnused) {
return gSetting[option];
}
return 0;
}
} // namespace OpenCSG