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.

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

Improve robustness for symbol downcasts by moving to a "getAs" infrastructure and doing more error checking.



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20609 e7fa87d3-cd2b-0410-9028-fcbf551c1848

CPP: Fix stack of previous nested #if/#else/#endif for whether a #else had been seen, which was sometimes cleared and sometimes not, effected later nested #if/#else/#endif #else checks.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20573 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20552 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Allow GLSL construction of matrix from matrix, starting with version 120, and always for ES shaders.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20544 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20540 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20539 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20536 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Simultaneously fix only known memory leak and take the next step in supporting arrays of arrays.  Improved several minor things along the way.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20514 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20510 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20509 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Support multiple default versions, to enable ES vs. desktop contexts, for shaders missing a #version statement.

This also moved some parseContext code from the flex file to the proper C++ file.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20501 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20490 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Fix a preprocessor defect, where nested dead #if-#endif had nesting depth off by one level, turning what should be dead code into live code.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20461 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20457 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Implement non-square matrices, and make a few type improvements.  Cleaned up a few old issues. Added two tests.

Details
 - added all the new non-square types
 - separated concepts of matrix size and vector size
 - removed VS 6.0 comments/workarounds
 - removed obsolete concept of matrix fields



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20436 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Used this for precision keywords and double matrix keywords.

Also added a few missing reserved words.

Also removed redundant "syntax error" when there is a parse error.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20423 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Have non-ES profiles always use EpqNone (no precision qualifier) rather than using highp.  This keeps precision qualifiers out of error messages, IL dumps, etc., and avoids the precision propagation algorithm.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20364 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Put in basic propagation algorithm for precision qualifiers.  Some corner cases are document as TODO.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20360 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20334 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20333 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Implement the full scheme for ES precision qualifiers, generalizing existing storage qualifiers to be able to include multiple independent kinds of qualifiers.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20317 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20316 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20315 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20102 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20101 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20083 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20077 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Fix "forward" -> "faceforward" typo, which had caused the operator for it to not be mapped, and instead passed through as a function call.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20021 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Bug fix: Make the type of the result of a structure assignment be the type of the structure assigned.  That is, the type of the result of the "=" itself, if used in a broader expression.  This probably fixes some other subtle problems as well.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20001 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19954 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19952 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Add a new shader-versioning infrastructure capable of handling multiple profiles, desktop/ES, many versions, features coming and going in different versions across different profiles, and extensions.  

NB: *Use* of this infrastructure is so far only skeletal.

Fixed a few typos and minor issues along the way.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19951 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Add preprocessor support for parsing doubles.

Add double support to the flex stage.

Put in some of the basic double supported needed in the front end.

Add generic support for version numbers in the preprocessor, and the core, compatibility, and es profiles.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19949 e7fa87d3-cd2b-0410-9028-fcbf551c1848

1) Improve error recovery from arrays sized with a non constant.  2) Add double vectors to the lexer.  3) Default to vertex shaders for unrecognized file name suffixes.

Also fix issue where the keyword "shared" conflicts with the layout qualifier identifier "shared" by allowing the keyword in the layout qualifier identifier list.



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19948 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Also add buffer and shared keywords and grammar, which brings the grammar up to 4.3.

N.B. There is a problem for "shared": it is both a keyword (as a storage qualifier) and an identifier (for layouts).

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19947 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Remove the pack/unpack languages and bring grammar up from 1.1 to 4.2 and fix the affected 1.1 productions and semantics to still work correctly for 1.1 shaders.

For 4.2, largely, it is only the grammar that is working.  Productions and semantics are mostly missing.  Lexical analysis is mostly done, but not in the preprocessor, which still can't handle uint and double literals.

The grammar and token names are reorganized to match the specification, to allow easier comparison between the specification and the working grammar.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19946 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19945 e7fa87d3-cd2b-0410-9028-fcbf551c1848

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19944 e7fa87d3-cd2b-0410-9028-fcbf551c1848