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Built-in symbol tables now lazily evaluated, and driven by per version, per profile input. Got all ES 100 and ES 300 built-in symbols correct.

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This includes
 - doing prescan of shader to know version/profile before parsing it
 - putting precision qualifiers on built-in ES symbols
 - getting most built-in state correct for core/compatibility/missing profile
 - adding gl_VertexID and gl_InstanceID, among other ES 300 built-in symbols
 - adding the ES 300 gl_Max/Min constants
 - accepting shaders that contain nothing but whitespace without generating an error


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20627 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-02-17 06:01:50 +00:00
parent fb5f7eadfa
commit bd0747d6f0
16 changed files with 843 additions and 491 deletions
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7
glslang/MachineIndependent/ParseHelper.h
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@ -67,9 +67,9 @@ struct TPragma {
// they can be passed to the parser without needing a global.
//
struct TParseContext {
TParseContext(TSymbolTable& symt, TIntermediate& interm, EShLanguage L, TInfoSink& is, int defaultVersion);
TParseContext(TSymbolTable&, TIntermediate&, int version, EProfile, EShLanguage, TInfoSink&);
TIntermediate& intermediate; // to hold and build a parse tree
TSymbolTable& symbolTable; // symbol table that goes with the language currently being parsed
TSymbolTable& symbolTable; // symbol table that goes with the current language, version, and profile
TInfoSink& infoSink;
EShLanguage language; // vertex or fragment language
TIntermNode* treeRoot; // root of parse tree being created
@ -92,9 +92,6 @@ struct TParseContext {
TString HashErrMsg;
bool AfterEOF;
void setVersion(int);
void setProfile(EProfile);
void initializeExtensionBehavior();
void C_DECL error(TSourceLoc, const char *szReason, const char *szToken,