OpenSceneGraph/src/osgPlugins/osg/BlendFunc.cpp
2002-07-13 20:31:30 +00:00

108 lines
3.6 KiB
C++

#include "osg/BlendFunc"
#include "osgDB/Registry"
#include "osgDB/Input"
#include "osgDB/Output"
using namespace osg;
using namespace osgDB;
// forward declare functions to use later.
bool BlendFunc_readLocalData(Object& obj, Input& fr);
bool BlendFunc_writeLocalData(const Object& obj, Output& fw);
bool BlendFunc_matchModeStr(const char* str,int& mode);
const char* BlendFunc_getModeStr(int value);
// register the read and write functions with the osgDB::Registry.
RegisterDotOsgWrapperProxy g_BlendFuncProxy
(
osgNew osg::BlendFunc,
"BlendFunc",
"Object StateAttribute BlendFunc",
&BlendFunc_readLocalData,
&BlendFunc_writeLocalData
);
RegisterDotOsgWrapperProxy g_TransparencyProxy
(
osgNew osg::BlendFunc,
"Transparency",
"Object StateAttribute Transparency",
&BlendFunc_readLocalData,
&BlendFunc_writeLocalData
);
bool BlendFunc_readLocalData(Object& obj, Input& fr)
{
bool iteratorAdvanced = false;
BlendFunc& transparency = static_cast<BlendFunc&>(obj);
int mode;
if (fr[0].matchWord("source") && BlendFunc_matchModeStr(fr[1].getStr(),mode))
{
transparency.setSource(mode);
fr+=2;
iteratorAdvanced = true;
}
if (fr[0].matchWord("destination") && BlendFunc_matchModeStr(fr[1].getStr(),mode))
{
transparency.setDestination(mode);
fr+=2;
iteratorAdvanced = true;
}
return iteratorAdvanced;
}
bool BlendFunc_writeLocalData(const Object& obj, Output& fw)
{
const BlendFunc& transparency = static_cast<const BlendFunc&>(obj);
fw.indent() << "source " << BlendFunc_getModeStr(transparency.getSource()) << std::endl;
fw.indent() << "destination " << BlendFunc_getModeStr(transparency.getDestination()) << std::endl;
return true;
}
bool BlendFunc_matchModeStr(const char* str,int& mode)
{
if (strcmp(str,"DST_ALPHA")==0) mode = BlendFunc::DST_ALPHA;
else if (strcmp(str,"DST_COLOR")==0) mode = BlendFunc::DST_COLOR;
else if (strcmp(str,"ONE")==0) mode = BlendFunc::ONE;
else if (strcmp(str,"ONE_MINUS_DST_ALPHA")==0) mode = BlendFunc::ONE_MINUS_DST_ALPHA;
else if (strcmp(str,"ONE_MINUS_DST_COLOR")==0) mode = BlendFunc::ONE_MINUS_DST_COLOR;
else if (strcmp(str,"ONE_MINUS_SRC_ALPHA")==0) mode = BlendFunc::ONE_MINUS_SRC_ALPHA;
else if (strcmp(str,"ONE_MINUS_SRC_COLOR")==0) mode = BlendFunc::ONE_MINUS_SRC_COLOR;
else if (strcmp(str,"SRC_ALPHA")==0) mode = BlendFunc::SRC_ALPHA;
else if (strcmp(str,"SRC_ALPHA_SATURATE")==0) mode = BlendFunc::SRC_ALPHA_SATURATE;
else if (strcmp(str,"SRC_COLOR")==0) mode = BlendFunc::SRC_COLOR;
else return false;
return true;
}
const char* BlendFunc_getModeStr(int value)
{
switch(value)
{
case(BlendFunc::DST_ALPHA) : return "DST_ALPHA";
case(BlendFunc::DST_COLOR) : return "DST_COLOR";
case(BlendFunc::ONE) : return "ONE";
case(BlendFunc::ONE_MINUS_DST_ALPHA) : return "ONE_MINUS_DST_ALPHA";
case(BlendFunc::ONE_MINUS_DST_COLOR) : return "ONE_MINUS_DST_COLOR";
case(BlendFunc::ONE_MINUS_SRC_ALPHA) : return "ONE_MINUS_SRC_ALPHA";
case(BlendFunc::ONE_MINUS_SRC_COLOR) : return "ONE_MINUS_SRC_COLOR";
case(BlendFunc::SRC_ALPHA) : return "SRC_ALPHA";
case(BlendFunc::SRC_ALPHA_SATURATE) : return "SRC_ALPHA_SATURATE";
case(BlendFunc::SRC_COLOR) : return "SRC_COLOR";
case(BlendFunc::ZERO) : return "ZERO";
}
return NULL;
}