static void AddParameter(JSON &json, CGparameter param)
{
const char * const parameterName = cgGetParameterName(param);
if (sVerbose)
{
puts(parameterName);
}
json.AddObject(parameterName);
const CGtype type = cgGetParameterType(param);
const CGtype baseType = cgGetParameterBaseType(param);
int numRows = cgGetParameterRows(param);
const int numColumns = cgGetParameterColumns(param);
if (CG_ARRAY == type)
{
const int totalArraySize = cgGetArrayTotalSize(param);
numRows *= totalArraySize;
}
json.AddString("type", cgGetTypeString(baseType));
if (1 < numRows)
{
json.AddValue("rows", numRows);
}
if (1 < numColumns)
{
json.AddValue("columns", numColumns);
}
const int maxNumElements = (numColumns * numRows);
int n;
if (CG_FLOAT == baseType)
{
float * const values = (float *)malloc(maxNumElements * sizeof(float));
const int numValues = cgGetParameterValuefr(param, maxNumElements, values);
if (numValues)
{
for (n = 0; n < numValues; n++)
{
if (values[n] != 0.0f)
{
break;
}
}
if (n < numValues)
{
json.AddArray("values", true);
json.BeginData(true);
for (n = 0; n < numValues; n++)
{
json.AddData(values[n]);
}
json.EndData();
json.CloseArray(true);
}
}
free(values);
}
else if (CG_INT == baseType)
{
int * const values = (int *)malloc(maxNumElements * sizeof(int));
const int numValues = cgGetParameterValueir(param, maxNumElements, values);
if (numValues)
{
for (n = 0; n < numValues; n++)
{
if (values[n])
{
break;
}
}
if (n < numValues)
{
json.AddArray("values", true);
json.BeginData(true);
for (n = 0; n < numValues; n++)
{
json.AddData(values[n]);
}
json.EndData();
json.CloseArray(true);
}
}
free(values);
}
else if (CG_BOOL == baseType)
{
int * const values = (int *)malloc(maxNumElements * sizeof(int));
const int numValues = cgGetParameterValueir(param, maxNumElements, values);
if (numValues)
{
for (n = 0; n < numValues; n++)
{
if (values[n])
{
break;
}
}
if (n < numValues)
{
json.AddArray("values", true);
json.BeginData(true);
for (n = 0; n < numValues; n++)
{
json.AddData(values[n]);
}
json.EndData();
json.CloseArray(true);
}
}
free(values);
}
json.CloseObject(); // parameter
}
static void AddMappedParameter(JSON &json,
const char *paramName,
const char *programString,
UniformsMap &uniformRemapping)
{
const bool isAssembly = (0 == memcmp(programString, "!!ARB", 5));
const char * const vars = strstr(programString, (isAssembly ? "#var" : "//var"));
if (NULL != vars)
{
const size_t paramNameLength = strlen(paramName);
const char *var = vars;
do
{
// to skip previous search
var += 1;
var = strstr(var, paramName);
}
while (NULL != var &&
' ' != var[paramNameLength] &&
':' != var[paramNameLength] &&
'[' != var[paramNameLength]);
if (NULL != var)
{
const char * const semantic = strchr(var, ':');
if (NULL != semantic)
{
const char *mappedVariable = strchr((semantic + 1), ':');
if (NULL != mappedVariable)
{
do
{
mappedVariable++;
}
while (*mappedVariable <= ' ');
const char *mappedVariableEnd = mappedVariable;
while (' ' != *mappedVariableEnd &&
':' != *mappedVariableEnd &&
'[' != *mappedVariableEnd &&
',' != *mappedVariableEnd &&
0 != *mappedVariableEnd)
{
mappedVariableEnd++;
}
const size_t mappedVariableLength = (size_t)(mappedVariableEnd - mappedVariable);
if (isAssembly)
{
if (0 < mappedVariableLength)
{
// Append location to end of string
std::string paramString(paramName, paramNameLength);
paramString += ':';
// mappedVariable should have the format 'c[{location}]' or 'texunit {location}'
const char *location = mappedVariableEnd;
while (0 != *location &&
('0' > *location ||
'9' < *location))
{
location++;
}
if (0 != *location)
{
const char *locationEnd = location;
do
{
locationEnd++;
}
while (0 != *locationEnd &&
'0' <= *locationEnd &&
'9' >= *locationEnd);
if (0 != *locationEnd)
{
paramString.append(location, (size_t)(locationEnd - location));
json.AddData(paramString.c_str(), paramString.size());
}
}
}
return;
}
const std::string mappedVariableString(mappedVariable, mappedVariableLength);
const char * const mappedVariableName = mappedVariableString.c_str();
// Check that it is actually used
const char * const main = strstr(mappedVariableEnd, "main()");
if (NULL != main)
{
const boost::xpressive::cregex re(boost::xpressive::_b >> mappedVariableString >> boost::xpressive::_b);
if (!regex_search((main + 6), re))
{
return;
}
}
json.AddData(paramName, paramNameLength);
const UniformsMap::const_iterator it = uniformRemapping.find(mappedVariableString);
if (it == uniformRemapping.end())
{
uniformRemapping[mappedVariableString] = paramName;
}
else if (it->second != paramName)
{
printf("\nUniform variable conflict '%s':\n\t%s\n\t%s\n",
mappedVariableName,
it->second.c_str(),
paramName);
exit(1);
}
}
}
}
}
}
static bool AddPass(CGtechnique technique, JSON &json, CGpass pass, UniformsMap &uniformRemapping)
{
bool success = true;
json.AddObject(NULL);
const char * const passName = cgGetPassName(pass);
if (NULL != passName)
{
json.AddString("name", passName);
}
bool firstParameter = true;
#if CG_VERSION_NUM >= 3000
const int CG_NUMBER_OF_DOMAINS = (CG_TESSELLATION_EVALUATION_DOMAIN + 1);
#endif
for (int domain = CG_FIRST_DOMAIN; domain < CG_NUMBER_OF_DOMAINS; domain++)
{
const CGprogram program = cgGetPassProgram(pass, (CGdomain)domain);
if (NULL != program)
{
const char * const programString = cgGetProgramString(program, CG_COMPILED_PROGRAM);
CGparameter param = cgGetFirstParameter(program, CG_GLOBAL);
while (NULL != param)
{
if (cgIsParameterUsed(param, program) &&
CG_UNIFORM == cgGetParameterVariability(param))
{
if (firstParameter)
{
firstParameter = false;
json.AddArray("parameters", true);
json.BeginData(true);
}
const char * const paramName = cgGetParameterName(param);
AddMappedParameter(json, paramName, programString, uniformRemapping);
}
param = cgGetNextParameter(param);
}
param = cgGetFirstParameter(program, CG_PROGRAM);
while (NULL != param)
{
if (cgIsParameterUsed(param, program) &&
CG_UNIFORM == cgGetParameterVariability(param))
{
if (firstParameter)
{
firstParameter = false;
json.AddArray("parameters", true);
json.BeginData(true);
}
const char * const paramName = cgGetParameterName(param);
AddMappedParameter(json, paramName, programString, uniformRemapping);
}
param = cgGetNextParameter(param);
}
}
}
if (!firstParameter)
{
json.EndData();
json.CloseArray(true); // parameters
}
json.AddArray("semantics", true);
json.BeginData(true);
CGprogram vertexProgram = cgGetPassProgram(pass, CG_VERTEX_DOMAIN);
CGparameter vertexInputParameter = cgGetFirstLeafParameter(vertexProgram, CG_PROGRAM);
while (NULL != vertexInputParameter)
{
const CGenum variability = cgGetParameterVariability(vertexInputParameter);
if (CG_VARYING == variability)
{
const CGenum direction = cgGetParameterDirection(vertexInputParameter);
if (CG_IN == direction ||
CG_INOUT == direction)
{
const char * const semantic = cgGetParameterSemantic(vertexInputParameter);
json.AddData(semantic, strlen(semantic));
}
}
vertexInputParameter = cgGetNextLeafParameter(vertexInputParameter);
}
json.EndData();
json.CloseArray(true); // semantics
json.AddObject("states");
CGstateassignment state = cgGetFirstStateAssignment(pass);
if (NULL != state)
{
do
{
success &= AddState(json, state);
state = cgGetNextStateAssignment(state);
}
while (NULL != state);
}
json.CloseObject(); // states
json.AddArray("programs", true);
json.BeginData(true);
for (int domain = CG_FIRST_DOMAIN; domain < CG_NUMBER_OF_DOMAINS; domain++)
{
const CGprogram program = cgGetPassProgram(pass, (CGdomain)domain);
if (NULL != program)
{
const char * const entryPoint = cgGetProgramString(program, CG_PROGRAM_ENTRY);
json.AddData(entryPoint, strlen(entryPoint));
}
else if (domain == CG_VERTEX_DOMAIN)
{
ErrorMessage("%s : No vertex program.", cgGetTechniqueName(technique));
success = false;
}
else if(domain == CG_FRAGMENT_DOMAIN)
{
ErrorMessage("%s : No fragment program.", cgGetTechniqueName(technique));
success = false;
}
}
json.EndData();
json.CloseArray(true); // programs
json.CloseObject(); // pass
return success;
}
static bool AddState(JSON &json, CGstateassignment sa)
{
const CGstate state = cgGetStateAssignmentState(sa);
const char * const stateName = cgGetStateName(state);
if (false == IsValidState(stateName))
{
ErrorMessage("Invalid state for OpenGL ES 2.0 %s", stateName);
return false;
}
const CGtype type = cgGetStateType(state);
int nValues;
switch (type)
{
case CG_PROGRAM_TYPE:
return true;
case CG_FLOAT:
case CG_FLOAT1:
{
const float * const fvalues = cgGetFloatStateAssignmentValues(sa, &nValues);
json.AddValue(stateName, fvalues[0]);
}
break;
case CG_FLOAT2:
case CG_FLOAT3:
case CG_FLOAT4:
{
const float * const fvalues = cgGetFloatStateAssignmentValues(sa, &nValues);
json.AddArray(stateName, true);
json.BeginData(true);
for (int n = 0; n < nValues; ++n)
{
json.AddData(fvalues[n]);
}
json.EndData();
json.CloseArray(true);
}
break;
case CG_INT:
case CG_INT1:
{
const int * const ivalues = cgGetIntStateAssignmentValues(sa, &nValues);
json.AddValue(stateName, ivalues[0]);
}
break;
case CG_INT2:
case CG_INT3:
case CG_INT4:
{
const int * const ivalues = cgGetIntStateAssignmentValues(sa, &nValues);
json.AddArray(stateName, true);
json.BeginData(true);
for (int n = 0; n < nValues; ++n)
{
json.AddData(ivalues[n]);
}
json.EndData();
json.CloseArray(true);
}
break;
case CG_BOOL:
case CG_BOOL1:
{
const CGbool * const bvalues = cgGetBoolStateAssignmentValues(sa, &nValues);
json.AddBoolean(stateName, (bvalues[0] ? true : false));
}
break;
case CG_BOOL2:
case CG_BOOL3:
case CG_BOOL4:
{
const CGbool * const bvalues = cgGetBoolStateAssignmentValues(sa, &nValues);
json.AddArray(stateName, true);
json.BeginData(true);
for (int n = 0; n < nValues; ++n)
{
json.AddData(bvalues[n]);
}
json.EndData();
json.CloseArray(true);
}
break;
case CG_STRING:
json.AddString(stateName, cgGetStringStateAssignmentValue(sa));
break;
default:
ErrorMessage("UNEXPECTED State Assignment Type: %s 0x%x (%d)\n",
cgGetTypeString(type), type, type);
return false;
}
return true;
}
