mesa/src/glsl/glcpp at a48ff781c1cac00ad432edf88fafa44e667fa90f - mesa

Files

T

Carl Worth a48ff781c1 glsl/glcpp: Swallow empty #pragma directives.

Previously, we were passing these through, just like any other pragma. But the
downstream compiler was tripping up on them. It seems easier to swallow these
in the preprocessor and not pass them on at all rather than fixing the
downstream compiler.

This fixes the following Khronos GLES3 CTS tests:

	preprocessor.pragmas.pragma_vertex
	preprocessor.pragmas.pragma_fragment

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

2014-08-07 16:08:29 -07:00

tests

glsl/glcpp: Swallow empty #pragma directives.

2014-08-07 16:08:29 -07:00

.gitignore

glcpp: Add back tests/*.out to .gitignore

2013-01-11 11:49:33 +01:00

glcpp-lex.l

glsl/glcpp: Swallow empty #pragma directives.

2014-08-07 16:08:29 -07:00

glcpp-parse.y

glsl/glcpp: Add explicit error for "#define without macro name"

2014-08-07 16:08:28 -07:00

glcpp.c

glsl/glcpp: Add a -d/--debug option to the standalone glcpp program

2014-07-29 15:11:49 -07:00

glcpp.h

util: Move ralloc to a new src/util directory.

2014-08-04 11:06:58 -07:00

pp.c

glcpp: Resolve implicit GLSL version to 100 if the API is ES.

2014-01-27 21:15:35 -08:00

README

glcpp: Update README for new support of __LINE__ and __FILE__.

2012-11-29 13:03:02 -08:00

README

glcpp -- GLSL "C" preprocessor

This is a simple preprocessor designed to provide the preprocessing
needs of the GLSL language. The requirements for this preprocessor are
specified in the GLSL 1.30 specification availble from:

http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.10.pdf

This specification is not precise on some semantics, (for example,
#define and #if), defining these merely "as is standard for C++
preprocessors". To fill in these details, I've been using a draft of
the C99 standard as available from:

http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf

Any downstream compiler accepting output from glcpp should be prepared
to encounter and deal with the following preprocessor macros:

	#line
	#pragma
	#extension

All other macros will be handled according to the GLSL specification
and will not appear in the output.

Known limitations
-----------------
A file that ends with a function-like macro name as the last
non-whitespace token will result in a parse error, (where it should be
passed through as is).