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#include "UnityPrefix.h"
#include "BuiltinShaderParamsNames.h"
#include "Runtime/Utilities/ArrayUtility.h"
namespace
{
struct ParamNameIndex
{
bool operator < (const ParamNameIndex& rhs) const { return strcmp(name, rhs.name) < 0; }
bool operator == (const ParamNameIndex& rhs) const { return strcmp(name, rhs.name) == 0; }
const char* name;
int index;
};
class ParamNameLookup
{
public:
ParamNameLookup() {}
void AddBuiltinNames(const char** names, int count)
{
m_Params.resize(count);
for (int i = 0; i < count; ++i)
{
m_Params[i].name = names[i];
m_Params[i].index = i;
}
}
void AddSynonyms(ParamNameIndex* params, int count)
{
m_Params.reserve(m_Params.size() + count);
for (int i = 0; i < count; ++i)
m_Params.push_back(params[i]);
}
void Sort()
{
std::sort(m_Params.begin(), m_Params.end());
}
bool Find(const char* name, int* outIndex) const
{
ParamNameIndex key = { name, 0 };
ParamNameArray::const_iterator found = std::find(m_Params.begin(), m_Params.end(), key);
if (found != m_Params.end())
{
if (outIndex)
*outIndex = found->index;
return true;
}
return false;
}
private:
typedef std::vector<ParamNameIndex> ParamNameArray;
ParamNameArray m_Params;
};
struct ParamNameLookups
{
ParamNameLookup instanceMatrices;
ParamNameLookup instanceVectors;
ParamNameLookup vectors;
ParamNameLookup matrices;
ParamNameLookup texEnvs;
};
ParamNameLookups* s_NameLookups;
}
//==============================================================================
inline static const char** GetInstanceMatrixParams()
{
static const char* lookup[kShaderInstanceMatCount] = {
BUILTIN_SHADER_PARAMS_INSTANCE_MATRICES
#if GFX_HIGH_LEVEL_FF
,
BUILTIN_SHADER_PARAMS_INSTANCE_MATRICES_FF
#endif
};
return lookup;
}
inline static const char** GetInstanceVectorParams()
{
static const char* lookup[kShaderInstanceVecCount] = {
BUILTIN_SHADER_PARAMS_INSTANCE_VECTORS
};
return lookup;
}
inline static const char** GetBuiltinVectorParams()
{
static const char* lookup[kShaderVecCount] = {
BUILTIN_SHADER_PARAMS_VECTORS
#if GFX_HIGH_LEVEL_FF
,
BUILTIN_SHADER_PARAMS_VECTORS_FF
#endif
};
return lookup;
}
static ParamNameIndex s_VectorSynonymMapping[] = {
{ "glstate_light0_diffuse", kShaderVecLight0Diffuse },
{ "glstate_light1_diffuse", kShaderVecLight1Diffuse },
{ "glstate_light2_diffuse", kShaderVecLight2Diffuse },
{ "glstate_light3_diffuse", kShaderVecLight3Diffuse },
{ "glstate_light0_position", kShaderVecLight0Position },
{ "glstate_light1_position", kShaderVecLight1Position },
{ "glstate_light2_position", kShaderVecLight2Position },
{ "glstate_light3_position", kShaderVecLight3Position },
{ "glstate_light0_attenuation", kShaderVecLight0Atten },
{ "glstate_light1_attenuation", kShaderVecLight1Atten },
{ "glstate_light2_attenuation", kShaderVecLight2Atten },
{ "glstate_light3_attenuation", kShaderVecLight3Atten },
{ "glstate_light0_spotDirection", kShaderVecLight0SpotDirection },
{ "glstate_light1_spotDirection", kShaderVecLight1SpotDirection },
{ "glstate_light2_spotDirection", kShaderVecLight2SpotDirection },
{ "glstate_light3_spotDirection", kShaderVecLight3SpotDirection }
};
inline static const char** GetBuiltinMatrixParams()
{
static const char* lookup[kShaderMatCount] = {
BUILTIN_SHADER_PARAMS_MATRICES
};
return lookup;
}
static ParamNameIndex s_MatrixSynonymMapping[] = {
{ "unity_World2Shadow", kShaderMatWorldToShadow },
{ "unity_World2Shadow0", kShaderMatWorldToShadow },
{ "unity_World2Shadow1", kShaderMatWorldToShadow1 },
{ "unity_World2Shadow2", kShaderMatWorldToShadow2 },
{ "unity_World2Shadow3", kShaderMatWorldToShadow3 }
};
inline static const char** GetBuiltinTexEnvParams()
{
static const char* lookup[kShaderTexEnvCount] = {
BUILTIN_SHADER_PARAMS_TEXENVS
};
return lookup;
}
//------------------------------------------------------------------------------
const char* GetShaderInstanceMatrixParamName(int paramIndex)
{
Assert(paramIndex >= 0 && paramIndex < kShaderInstanceMatCount);
return GetInstanceMatrixParams()[paramIndex];
}
const char* GetShaderInstanceVectorParamName(int paramIndex)
{
Assert(paramIndex >= 0 && paramIndex < kShaderInstanceVecCount);
return GetInstanceVectorParams()[paramIndex];
}
const char* GetBuiltinMatrixParamName(int paramIndex)
{
Assert(paramIndex >= 0 && paramIndex < kShaderMatCount);
return GetBuiltinMatrixParams()[paramIndex];
}
const char* GetBuiltinVectorParamName(int paramIndex)
{
Assert(paramIndex >= 0 && paramIndex < kShaderVecCount);
return GetBuiltinVectorParams()[paramIndex];
}
const char* GetBuiltinTexEnvParamName(int paramIndex)
{
Assert(paramIndex >= 0 && paramIndex < kShaderTexEnvCount);
return GetBuiltinTexEnvParams()[paramIndex];
}
//------------------------------------------------------------------------------
void InitializeBuiltinShaderParamNames ()
{
Assert (!s_NameLookups);
// needs to dynamically allocate this due to static initialization order (FastPropertyNames
// might be initialized before this is etc.)
s_NameLookups = new ParamNameLookups ();
s_NameLookups->instanceMatrices.AddBuiltinNames(GetInstanceMatrixParams(), kShaderInstanceMatCount);
s_NameLookups->instanceMatrices.Sort();
s_NameLookups->instanceVectors.AddBuiltinNames(GetInstanceVectorParams(), kShaderInstanceVecCount);
s_NameLookups->instanceVectors.Sort();
s_NameLookups->vectors.AddBuiltinNames(GetBuiltinVectorParams(), kShaderVecCount);
s_NameLookups->vectors.AddSynonyms(s_VectorSynonymMapping, ARRAY_SIZE(s_VectorSynonymMapping));
s_NameLookups->vectors.Sort();
s_NameLookups->matrices.AddBuiltinNames(GetBuiltinMatrixParams(), kShaderMatCount);
s_NameLookups->matrices.AddSynonyms(s_MatrixSynonymMapping, ARRAY_SIZE(s_MatrixSynonymMapping));
s_NameLookups->matrices.Sort();
s_NameLookups->texEnvs.AddBuiltinNames(GetBuiltinTexEnvParams(), kShaderTexEnvCount);
s_NameLookups->texEnvs.Sort();
}
void CleanupBuiltinShaderParamNames ()
{
delete s_NameLookups;
s_NameLookups = NULL;
}
bool IsShaderInstanceMatrixParam(const char* name, int* paramIndex)
{
return s_NameLookups->instanceMatrices.Find(name, paramIndex);
}
bool IsShaderInstanceVectorParam(const char* name, int* paramIndex)
{
return s_NameLookups->instanceVectors.Find(name, paramIndex);
}
bool IsVectorBuiltinParam(const char* name, int* paramIndex)
{
return s_NameLookups->vectors.Find(name, paramIndex);
}
bool IsMatrixBuiltinParam(const char* name, int* paramIndex)
{
return s_NameLookups->matrices.Find(name, paramIndex);
}
bool IsTexEnvBuiltinParam(const char* name, int* paramIndex)
{
return s_NameLookups->texEnvs.Find(name, paramIndex);
}
bool IsBuiltinArrayName(const char* name)
{
static const char* _BuiltinArrayName[] =
{
"glstate_matrix_texture",
"unity_LightColor",
"unity_LightPosition",
"unity_LightAtten",
"unity_World2Shadow",
"unity_ShadowSplitSpheres",
"_ShadowOffsets",
"unity_CameraWorldClipPlanes"
};
static const unsigned _BuiltinArrayCount = sizeof(_BuiltinArrayName) / sizeof(const char*);
for( unsigned i = 0 ; i < _BuiltinArrayCount ; ++i )
{
if( ::strcmp(name, _BuiltinArrayName[i]) == 0 )
return true;
}
return false;
}
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