bool csShaderGLCGCommon::Load (iShaderDestinationResolver* resolve,
iDocumentNode* program)
{
if(!program)
return false;
csRef<iShaderManager> shadermgr =
csQueryRegistry<iShaderManager> (shaderPlug->object_reg);
const char* progTypeNode = 0;
switch (programType)
{
case progVP: progTypeNode = "cgvp"; break;
case progFP: progTypeNode = "cgfp"; break;
}
csRef<iDocumentNode> variablesnode = program->GetNode (progTypeNode);
if(variablesnode)
{
csRef<iDocumentNodeIterator> it = variablesnode->GetNodes ();
while(it->HasNext())
{
csRef<iDocumentNode> child = it->Next();
if(child->GetType() != CS_NODE_ELEMENT) continue;
const char* value = child->GetValue ();
csStringID id = xmltokens.Request (value);
switch(id)
{
case XMLTOKEN_PROFILE:
synsrv->Report ("crystalspace.graphics3d.shader.cg",
CS_REPORTER_SEVERITY_WARNING, child,
"<profile> is no longer supported");
break;
case XMLTOKEN_ENTRY:
entrypoint = child->GetContentsValue ();
break;
case XMLTOKEN_COMPILERARGS:
shaderPlug->SplitArgsString (child->GetContentsValue (),
compilerArgs);
break;
case XMLTOKEN_VARIABLEMAP:
if (!ParseVmap (child))
return false;
cacheKeepNodes.Push (child);
break;
case XMLTOKEN_CLIP:
if (!ParseClip (child))
return false;
cacheKeepNodes.Push (child);
break;
default:
if (!ParseCommon (child))
return false;
}
}
}
cgResolve = scfQueryInterfaceSafe<iShaderProgramCG> (resolve);
clips.ShrinkBestFit ();
ClipsToVmap ();
return true;
}
iShaderProgram::CacheLoadResult csShaderGLCGCommon::LoadFromCache (
iHierarchicalCache* cache, iBase* previous, iDocumentNode* node,
csRef<iString>* failReason, csRef<iString>* tag,
ProfileLimitsPair* cacheLimits)
{
if (!cache) return iShaderProgram::loadFail;
csRef<iShaderProgramCG> prevCG (scfQueryInterfaceSafe<iShaderProgramCG> (
previous));
csRef<iStringArray> allCachedPrograms;
if ((programType == progVP) && prevCG.IsValid())
{
csShaderGLCGFP* prevFP = static_cast<csShaderGLCGFP*> (
(iShaderProgramCG*)prevCG);
csString tagStr ("CG");
tagStr += prevFP->cacheLimits.ToString();
if (failReason) failReason->AttachNew (
new scfString ("paired cached programs not found"));
allCachedPrograms.AttachNew (new scfStringArray);
allCachedPrograms->Push (tagStr);
}
else
allCachedPrograms = cache->GetSubItems ("/");
if (!allCachedPrograms.IsValid() || (allCachedPrograms->GetSize() == 0))
{
if (failReason) failReason->AttachNew (
new scfString ("no cached programs found"));
return iShaderProgram::loadFail;
}
if (!GetProgramNode (node)) return iShaderProgram::loadFail;
csRef<iDataBuffer> programBuffer = GetProgramData();
CS::Utility::Checksum::MD5::Digest progHash = CS::Utility::Checksum::MD5::Encode (
programBuffer->GetData(), programBuffer->GetSize());
csArray<CachedShaderWrapper> cachedProgWrappers;
for (size_t i = 0; i < allCachedPrograms->GetSize(); i++)
{
const char* tag = allCachedPrograms->Get (i);
if ((tag[0] != 'C') || (tag[1] != 'G')) continue;
CachedShaderWrapper wrapper;
if (!wrapper.limits.FromString (tag+2)) continue;
wrapper.name = tag;
csString cachePath ("/");
cachePath.Append (tag);
csRef<iDataBuffer> cacheBuf = cache->ReadCache (cachePath);
if (!cacheBuf.IsValid()) continue;
csRef<iFile> cacheFile;
cacheFile.AttachNew (new csMemFile (cacheBuf, true));
wrapper.cacheFile = cacheFile;
uint32 diskMagic;
if (cacheFile->Read ((char*)&diskMagic, sizeof (diskMagic))
!= sizeof (diskMagic)) continue;
if (csLittleEndian::UInt32 (diskMagic) != cacheFileMagic)
continue;
CS::Utility::Checksum::MD5::Digest diskHash;
if (cacheFile->Read ((char*)&diskHash, sizeof (diskHash))
!= sizeof (diskHash)) continue;
if (diskHash != progHash) continue;
cachedProgWrappers.Push (wrapper);
}
if (cachedProgWrappers.GetSize() == 0)
{
if (failReason && !*failReason) failReason->AttachNew (
new scfString ("all cached programs failed to read"));
return iShaderProgram::loadFail;
}
cachedProgWrappers.Sort ();
ProfileLimits currentLimits (
(programType == progVP) ? shaderPlug->currentLimits.vp
: shaderPlug->currentLimits.fp);
bool strictMatch = (programType == progVP) ? shaderPlug->strictMatchVP
: shaderPlug->strictMatchFP;
const char* progTypeNode = 0;
switch (programType)
{
case progVP: progTypeNode = "cgvp"; break;
case progFP: progTypeNode = "cgfp"; break;
}
csString allReasons;
bool oneReadCorrectly = false;
ProfileLimits bestLimits (
CS::PluginCommon::ShaderProgramPluginGL::Other,
CG_PROFILE_UNKNOWN);
bool bestLimitsSet = false;
for (size_t i = cachedProgWrappers.GetSize(); i-- > 0;)
{
const CachedShaderWrapper& wrapper = cachedProgWrappers[i];
const ProfileLimits& limits =
(programType == progVP) ? wrapper.limits.vp : wrapper.limits.fp;
if (!bestLimitsSet)
{
bestLimits = limits;
bestLimitsSet = true;
}
if (strictMatch && (limits != currentLimits))
{
allReasons += wrapper.name;
allReasons += ": strict mismatch; ";
continue;
}
bool profileSupported =
(shaderPlug->ProfileNeedsRouting (limits.profile)
&& shaderPlug->IsRoutedProfileSupported (limits.profile))
|| cgGLIsProfileSupported (limits.profile);
if (!profileSupported)
{
allReasons += wrapper.name;
allReasons += ": Profile unsupported; ";
continue;
}
if ((limits.vendor != currentLimits.vendor)
&& (limits.vendor != CS::PluginCommon::ShaderProgramPluginGL::Other))
{
allReasons += wrapper.name;
allReasons += ": vendor mismatch; ";
continue;
}
bool limitsSupported = currentLimits >= limits;
if (!limitsSupported)
{
allReasons += wrapper.name;
allReasons += ": Limits exceeded; ";
continue;
}
iFile* cacheFile = wrapper.cacheFile;
{
uint32 diskState;
if (cacheFile->Read ((char*)&diskState, sizeof (diskState))
!= sizeof (diskState)) continue;
if (csLittleEndian::UInt32 (diskState) != cpsValid)
{
oneReadCorrectly = true;
continue;
}
}
description = CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
bool breakFail = false;
csRef<iDocumentNode> cgNode = node->GetNode (progTypeNode);
if (!cgNode.IsValid()) continue;
csRef<iDocumentNodeIterator> nodes = cgNode->GetNodes();
while(nodes->HasNext() && !breakFail)
{
csRef<iDocumentNode> child = nodes->Next();
if(child->GetType() != CS_NODE_ELEMENT) continue;
const char* value = child->GetValue ();
csStringID id = xmltokens.Request (value);
switch(id)
{
case XMLTOKEN_VARIABLEMAP:
if (!ParseVmap (child))
breakFail = true;
break;
case XMLTOKEN_CLIP:
if (!ParseClip (child))
breakFail = true;
break;
default:
/* Ignore unknown nodes. Invalid nodes would have been caught
by the first (not from cache) parsing */
break;
}
}
if (breakFail) continue;
csString objectCodeCachePathArc =
CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
if (objectCodeCachePathArc.IsEmpty()) continue;
csString objectCodeCachePathItem =
CS::PluginCommon::ShaderCacheHelper::ReadString (cacheFile);
if (objectCodeCachePathItem.IsEmpty()) continue;
ProgramObjectID progId (objectCodeCachePathArc, objectCodeCachePathItem);
ProgramObject programObj;
//if (!LoadObjectCodeFromCompileCache (limits, cache))
if (!shaderPlug->progCache.LoadObject (progId, programObj))
continue;
oneReadCorrectly = true;
if (program)
{
cgDestroyProgram (program);
program = 0;
}
if (!programObj.IsValid()) continue;
cgGetError(); // Clear error
program = cgCreateProgram (shaderPlug->context,
CG_OBJECT, programObj.GetObjectCode(), limits.profile, 0, 0);
if (!program) continue;
CGerror err = cgGetError();
if (err != CG_NO_ERROR)
{
const char* errStr = cgGetErrorString (err);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"Cg error %s", errStr);
continue;
}
programProfile = limits.profile;
programPositionInvariant = programObj.GetFlags() & ProgramObject::flagPositionInvariant;
unusedParams = programObj.GetUnusedParams();
ClipsToVmap();
GetParamsFromVmap();
bool doLoadToGL = !shaderPlug->ProfileNeedsRouting (programProfile);
cgGetError(); // Clear error
if (doLoadToGL)
{
cgGLLoadProgram (program);
}
else
{
cgCompileProgram (program);
}
shaderPlug->PrintAnyListing();
err = cgGetError();
if ((err != CG_NO_ERROR)
|| (doLoadToGL && !cgGLIsProgramLoaded (program)))
{
//if (shaderPlug->debugDump)
//DoDebugDump();
const char* errStr = cgGetErrorString (err);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"Cg error %s", errStr);
if (shaderPlug->doVerbose
&& (((programType == progVP) && (programProfile >= CG_PROFILE_ARBVP1))
|| ((programType == progFP) && (programProfile >= CG_PROFILE_ARBFP1))))
{
const char* err = (char*)glGetString (GL_PROGRAM_ERROR_STRING_ARB);
shaderPlug->Report (CS_REPORTER_SEVERITY_WARNING,
"OpenGL error string: %s", err);
}
shaderPlug->SetCompiledSource (0);
continue;
}
GetPostCompileParamProps ();
if (shaderPlug->debugDump)
DoDebugDump();
tag->AttachNew (new scfString (wrapper.name));
if (cacheLimits != 0)
*cacheLimits = wrapper.limits;
bool loaded = !shaderPlug->ProfileNeedsRouting (programProfile)
|| LoadProgramWithPS1 ();
if (loaded && (bestLimits < currentLimits))
{
/* The best found program is worse than the current limits, so pretend
that the shader program failed (instead just being 'invalid') -
that will make xmlshader try to load the program from scratch,
ie with current limits, which may just work. */
if (failReason)
failReason->AttachNew (new scfString ("Provoking clean load with current limits"));
return iShaderProgram::loadFail;
}
return loaded ? iShaderProgram::loadSuccessShaderValid
: iShaderProgram::loadSuccessShaderInvalid;
}
if (oneReadCorrectly)
{
if (bestLimits < currentLimits)
{
/* The 'invalid' programs may compile with the current limits -
so again, provoke clean load */
if (failReason)
failReason->AttachNew (new scfString ("Provoking clean load with current limits"));
return iShaderProgram::loadFail;
}
else
return iShaderProgram::loadSuccessShaderInvalid;
}
else
return iShaderProgram::loadFail;
}