static bool AddTechnique(JSON &json, CGtechnique technique, UniformsMap &uniformRemapping)
{
bool success = true;
const char * const techniqueName = cgGetTechniqueName(technique);
if (sVerbose)
{
puts(techniqueName);
}
json.AddArray(techniqueName);
CGpass pass = cgGetFirstPass(technique);
if (NULL == pass)
{
success = false;
}
while (NULL != pass)
{
success &= AddPass(technique, json, pass, uniformRemapping);
pass = cgGetNextPass(pass);
}
json.CloseArray(); // techniqueName
return success;
}
cgfxTechnique::cgfxTechnique(
CGtechnique technique,
const cgfxProfile* profile
)
: fTechnique( technique),
fValid(false),
fPasses(NULL),
fNumPasses(0),
fNext(NULL)
{
if (technique)
{
fName = cgGetTechniqueName(technique);
CGpass pass = cgGetFirstPass(technique);
cgfxPass** nextPass = &fPasses;
while (pass)
{
++fNumPasses;
*nextPass = new cgfxPass(pass, profile);
nextPass = &(*nextPass)->fNext;
pass = cgGetNextPass(pass);
}
fHasBlending = hasBlending(fTechnique);
setProfile(profile);
}
}
void CgEffect::SetTechniqueByName(const char* name)
{
CGtechnique tech = cgGetFirstTechnique(effect);
while(tech)
{
if(!strcmp(cgGetTechniqueName(tech), name))
break;
tech = cgGetNextTechnique(tech);
}
this->activeTechnique = tech;
}
bool cEffect::Init(const std::string &lacNameId, const std::string &lacFile)
{
//Initialization of the class atributes
macFile = lacFile;
macLastTechnique = "";
mEffect = NULL;
mTechnique = NULL;
mCurrentPass = NULL;
mbLoaded = false;
//Loading of the effect
CGcontext lCGContext = cEffectManager::Get().GetCGContext();
mEffect = cgCreateEffectFromFile(lCGContext, lacFile.c_str(), NULL);
if (!mEffect) {
OutputDebugString("Unable to create effect\n");
const char *lacListing = cgGetLastListing(lCGContext);
if (lacListing)
{
char lacBuffer[512];
sprintf(lacBuffer, "%s\n", lacListing);
OutputDebugString(lacBuffer);
}
return false;
}
// Check if the techniques are valid
CGtechnique lTechnique = cgGetFirstTechnique(mEffect);
while (lTechnique) {
if (cgValidateTechnique(lTechnique) == CG_FALSE)
{
char lacBuffer[512];
sprintf(lacBuffer, "Technique %s did not validate. Skipping. \n", cgGetTechniqueName(lTechnique));
OutputDebugString( lacBuffer );
const char *lacListing = cgGetLastListing(lCGContext);
if (lacListing)
{
char lacBuffer[512];
sprintf(lacBuffer, "%s\n", lacListing);
OutputDebugString(lacBuffer);
}
}
lTechnique = cgGetNextTechnique(lTechnique);
}
mbLoaded = true;
return true;
}
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;
}
bool CgFXTechnique::validate(CgFXMaterial *pMat,
DrawEnv *pEnv)
{
if(0x00 == (_uiValidationState & ValidationTried))
{
#if 0
fprintf(stderr, "Validate %p\n", _pCGTechnique);
#endif
_uiValidationState = 0x03;
#if 0
if(pWin != NULL)
{
pWin->activate();
}
#endif
if(_pCGTechnique == NULL ||
cgValidateTechnique(_pCGTechnique) == CG_FALSE )
{
CgFXMaterial::checkForCgError("cgValidateTechnique", NULL);
_uiValidationState = 0x02;
}
else
{
CgFXMaterial::checkForCgError("cgValidateTechnique", NULL);
const CgFXMaterial::MFTexturesType *pTextures =
pMat->getMFTextures();
CGpass pPass = cgGetFirstPass(_pCGTechnique);
CgFXMaterial::checkForCgError("cgGetFirstPass", NULL);
for(UInt32 i = 0; i < pTextures->size(); ++i)
{
const Char8 *szTexParamName = getName((*pTextures)[i]);
Int32 iTexParamVal = -1;
const ShaderVariable *pVar = pMat->getVariable(szTexParamName);
OSG_ASSERT(pVar != NULL);
const CgFXVariableTexObj *pTexVar =
static_cast<const CgFXVariableTexObj *>(pVar);
OSG_ASSERT(pTexVar != NULL);
iTexParamVal = pTexVar->getValue();
if(iTexParamVal == -1)
{
CGparameter pParam =
cgGetNamedEffectParameter(pMat->getEffect(),
szTexParamName);
CgFXMaterial::checkForCgError("cgGetNamedEffectParameter",
NULL);
(*pTextures)[i]->activate(pEnv, 0);
Window::GLObjectId texObjId =
pEnv->getWindow()->getGLObjectId(
(*pTextures)[i]->getGLId());
cgGLSetTextureParameter(pParam, texObjId);
CgFXMaterial::checkForCgError("cgGLSetTextureParameter",
NULL);
cgSetSamplerState (pParam );
CgFXMaterial::checkForCgError("cgSetSamplerState",
NULL);
CgFXVariableTexObj *pTexVarW =
const_cast<CgFXVariableTexObj *>(pTexVar);
pTexVarW->setValue(texObjId);
(*pTextures)[i]->deactivate(pEnv);
}
}
int count = 0;
while(pPass)
{
StateUnrecPtr pState = State ::create();
CgFXPassChunkUnrecPtr pChunk = CgFXPassChunk::create();
pChunk->setPass (pPass);
pChunk->setMaterial(pMat );
pState->addChunk(pChunk);
this->addPassState(pState);
pPass = cgGetNextPass(pPass);
CgFXMaterial::checkForCgError("cgGetNextPass", NULL);
count++;
}
pMat->updateUniformVariables();
}
#if 0
if(_pCGTechnique != NULL)
{
fprintf(stderr, "Validated technique %s : %x\n",
cgGetTechniqueName(_pCGTechnique),
UInt32(_uiValidationState));
}
#endif
#if 0
if(pWin != NULL)
{
pWin->deactivate();
}
#endif
}
return (_uiValidationState & TechniqueValid);
}
