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#include "UnityPrefix.h"
#include "ShaderKeywords.h"
#include <map>
typedef std::map<std::string, ShaderKeyword> KeywordMap;
static KeywordMap* s_KeywordMap;
ShaderKeywordSet g_ShaderKeywords;
void keywords::Initialize()
{
Assert(!s_KeywordMap);
s_KeywordMap = UNITY_NEW( KeywordMap, kMemShader);
SET_ALLOC_OWNER(NULL);
// precreate common keywords
// Important: these must go first
Create( "SPOT" );
Create( "DIRECTIONAL" );
Create( "DIRECTIONAL_COOKIE" );
Create( "POINT" );
Create( "POINT_COOKIE" );
Create( "SHADOWS_OFF" );
Create( "SHADOWS_DEPTH" );
Create( "SHADOWS_SCREEN" );
Create( "SHADOWS_CUBE" );
Create( "SHADOWS_SOFT" );
Create( "SHADOWS_SPLIT_SPHERES" );
Create( "SHADOWS_NATIVE" );
Create( "LIGHTMAP_OFF" );
Create( "LIGHTMAP_ON" );
Create( "DIRLIGHTMAP_OFF" );
Create( "DIRLIGHTMAP_ON" );
Create( "VERTEXLIGHT_ON" );
Create( "SOFTPARTICLES_ON" );
Create( "HDR_LIGHT_PREPASS_ON" );
}
void keywords::Cleanup()
{
UNITY_DELETE( s_KeywordMap, kMemShader);
s_KeywordMap = NULL;
}
ShaderKeyword keywords::Create( const std::string& name )
{
if( !s_KeywordMap ) {
Initialize();
ANALYSIS_ASSUME(s_KeywordMap);
}
KeywordMap::const_iterator it = s_KeywordMap->find( name );
if( it != s_KeywordMap->end() )
return it->second;
ShaderKeyword key = s_KeywordMap->size();
if( key >= kMaxShaderKeywords )
{
AssertString( Format("Maximum number (%i) of shader keywords exceeded, keyword %s will be ignored", kMaxShaderKeywords, name.c_str()) );
}
else
{
SET_ALLOC_OWNER(NULL);
s_KeywordMap->insert( std::make_pair( name, key ) );
}
return key;
}
#if UNITY_EDITOR
std::string keywords::GetKeywordName (ShaderKeyword k)
{
if (!s_KeywordMap) {
Initialize();
ANALYSIS_ASSUME(s_KeywordMap);
}
for (KeywordMap::const_iterator it = s_KeywordMap->begin(); it != s_KeywordMap->end(); ++it)
{
if (it->second == k)
return it->first;
}
AssertString ("Requesting non existing shader keyword");
return "";
}
#endif
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