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Use GLSLANG_ANGLE to strip features to what ANGLE requires

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This change strips a few features similar to GLSLANG_WEB but doesn't
remove every detail like the latter.  It also hardcodes profile/version
to core/450.

In particular, TBuiltIns::initialize is specialized to remove most of
what is not supported or won't be supported by ANGLE.  The result of
this function is parsed with TParseContext::parseShaderStrings which is
a performance bottleneck.

This change shaves about 300KB off of ANGLE's binary size and reduces
the cost of SetupBuiltinSymbolTable to nearly a sixth.

Signed-off-by: Shahbaz Youssefi <ShabbyX@gmail.com>
This commit is contained in:
Shahbaz Youssefi 2020-07-03 15:42:53 -04:00
parent 7ab4564696
commit 1ef2e250fc
No known key found for this signature in database
GPG key ID: C6149357EC6727E0
17 changed files with 214 additions and 102 deletions
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12
glslang/MachineIndependent/SymbolTable.h
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@ -117,7 +117,7 @@ public:
virtual int getNumExtensions() const { return extensions == nullptr ? 0 : (int)extensions->size(); }
virtual const char** getExtensions() const { return extensions->data(); }
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
virtual void dump(TInfoSink& infoSink, bool complete = false) const = 0;
void dumpExtensions(TInfoSink& infoSink) const;
#endif
@ -196,7 +196,7 @@ public:
}
virtual const char** getMemberExtensions(int member) const { return (*memberExtensions)[member].data(); }
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
virtual void dump(TInfoSink& infoSink, bool complete = false) const;
#endif
@ -319,7 +319,7 @@ public:
virtual TParameter& operator[](int i) { assert(writable); return parameters[i]; }
virtual const TParameter& operator[](int i) const { return parameters[i]; }
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
virtual void dump(TInfoSink& infoSink, bool complete = false) const override;
#endif
@ -381,7 +381,7 @@ public:
virtual const char** getExtensions() const override { return anonContainer.getMemberExtensions(memberNumber); }
virtual int getAnonId() const { return anonId; }
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
virtual void dump(TInfoSink& infoSink, bool complete = false) const override;
#endif
@ -551,7 +551,7 @@ public:
void relateToOperator(const char* name, TOperator op);
void setFunctionExtensions(const char* name, int num, const char* const extensions[]);
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
void dump(TInfoSink& infoSink, bool complete = false) const;
#endif
TSymbolTableLevel* clone() const;
@ -854,7 +854,7 @@ public:
}
int getMaxSymbolId() { return uniqueId; }
#ifndef GLSLANG_WEB
#if !defined(GLSLANG_WEB) && !defined(GLSLANG_ANGLE)
void dump(TInfoSink& infoSink, bool complete = false) const;
#endif
void copyTable(const TSymbolTable& copyOf);