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Merge pull request #868 from TiemoJung/two_pass_io_remap

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Notification phase for io remapper
This commit is contained in:
John Kessenich 2017-04-28 09:15:51 -06:00 committed by GitHub
commit acce8dce1b
2 changed files with 53 additions and 0 deletions
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40
glslang/MachineIndependent/iomapper.cpp
View File

@ -201,6 +201,36 @@ public:
const TVarLiveMap& uniformList;
};
struct TNotifyUniformAdaptor
{
EShLanguage stage;
TIoMapResolver& resolver;
inline TNotifyUniformAdaptor(EShLanguage s, TIoMapResolver& r)
: stage(s)
, resolver(r)
{
}
inline void operator()(TVarEntryInfo& ent)
{
resolver.notifyBinding(stage, ent.symbol->getName().c_str(), ent.symbol->getType(), ent.live);
}
};
struct TNotifyInOutAdaptor
{
EShLanguage stage;
TIoMapResolver& resolver;
inline TNotifyInOutAdaptor(EShLanguage s, TIoMapResolver& r)
: stage(s)
, resolver(r)
{
}
inline void operator()(TVarEntryInfo& ent)
{
resolver.notifyInOut(stage, ent.symbol->getName().c_str(), ent.symbol->getType(), ent.live);
}
};
struct TResolverUniformAdaptor
{
TResolverUniformAdaptor(EShLanguage s, TIoMapResolver& r, TInfoSink& i, bool& e, TIntermediate& interm)
@ -383,6 +413,10 @@ struct TDefaultIoResolverBase : public glslang::TIoMapResolver
return -1;
}
void notifyBinding(EShLanguage stage, const char* name, const TType& type, bool is_live) override {}
void notifyInOut(EShLanguage stage, const char* name, const TType& type, bool is_live) override {}
void endNotifications() override {}
protected:
static int getLayoutSet(const glslang::TType& type) {
if (type.getQualifier().hasSet())
@ -674,8 +708,14 @@ bool TIoMapper::addStage(EShLanguage stage, TIntermediate &intermediate, TInfoSi
std::sort(uniformVarMap.begin(), uniformVarMap.end(), TVarEntryInfo::TOrderByPriority());
bool hadError = false;
TNotifyInOutAdaptor inOutNotify(stage, *resolver);
TNotifyUniformAdaptor uniformNotify(stage, *resolver);
TResolverUniformAdaptor uniformResolve(stage, *resolver, infoSink, hadError, intermediate);
TResolverInOutAdaptor inOutResolve(stage, *resolver, infoSink, hadError, intermediate);
std::for_each(inVarMap.begin(), inVarMap.end(), inOutNotify);
std::for_each(outVarMap.begin(), outVarMap.end(), inOutNotify);
std::for_each(uniformVarMap.begin(), uniformVarMap.end(), uniformNotify);
resolver->endNotifications();
std::for_each(inVarMap.begin(), inVarMap.end(), inOutResolve);
std::for_each(outVarMap.begin(), outVarMap.end(), inOutResolve);
std::for_each(uniformVarMap.begin(), uniformVarMap.end(), uniformResolve);

13
glslang/Public/ShaderLang.h
View File

@ -463,6 +463,13 @@ class TIoMapper;
// 5) all uniforms with set but no binding defined
// 6) all uniforms with no binding and no set defined
//
// mapIO will use this resolver in two phases. The first
// phase is a notification phase, calling the corresponging
// notifiy callbacks, this phase ends with a call to endNotifications.
// Phase two starts directly after the call to endNotifications
// and calls all other callbacks to validate and to get the
// bindings, sets, locations, component and color indices.
//
// NOTE: that still limit checks are applied to bindings and sets
// and may result in an error.
class TIoMapResolver
@ -491,6 +498,12 @@ public:
// Should return a value >= 0 if the current color index should be overridden.
// Return -1 if the current color index (including no index) should be kept.
virtual int resolveInOutIndex(EShLanguage stage, const char* name, const TType& type, bool is_live) = 0;
// Notification of a uniform variable
virtual void notifyBinding(EShLanguage stage, const char* name, const TType& type, bool is_live) = 0;
// Notification of a in or out variable
virtual void notifyInOut(EShLanguage stage, const char* name, const TType& type, bool is_live) = 0;
// Called by mapIO when it has finished the notify pass
virtual void endNotifications() = 0;
};
// Make one TProgram per set of shaders that will get linked together. Add all