Commit Graph

11 Commits

Author SHA1 Message Date
Carl Worth 77e1bc9f1d glcpp: Add a flag to the parser state to indicate GLES.
This can be triggered either by creation of a GLES context (with
api == API_OPENGLES2) or else by a #version directive with version
value 100 or with a string of "es" following the version value.

There's no behavioral change with this commit—just preparation for ES-specific
behavior in the preprocessor in the future.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2013-01-11 10:57:25 -08:00
Dave Airlie 88b0790b1a mesa/glsl: rename preprocess to glcpp_preprocess
This symbol with dricore escapes into the namespace, its too generic,
we should prefix it with something just to be nice.

Should be applied to stable + 9.0

Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-09-15 08:22:55 +10:00
Carl Worth aac78ce823 glsl: glcpp: Move handling of #line directives from lexer to parser.
The GLSL specification requires that #line directives be interpreted
after macro expansion. Our existing implementation of #line macros in
the lexer prevents conformance on this point.

Moving the handling of #line from the lexer to the parser gives us the
macro expansion we need. An additional benefit is that the
preprocessor also now supports comments on the same line as #line
directives.

Finally, the preprocessor now emits the (fully-macro-expanded) #line
directives into the output. This allows the full GLSL compiler to also
see and interpret these directives so it can also generate correct
line numbers in error messages.

Signed-off-by: Carl Worth <cworth@cworth.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2012-06-26 15:23:49 -07:00
Kenneth Graunke b823b99ec0 glcpp: Don't strlen() the output for every token being printed.
The ralloc string appending functions were originally intended for
simple, non-hot-path uses like printing to an info log.

Cuts Unigine Tropics load time by around 20% (6 seconds).

v2: Avoid strlen() on every newline, too.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> [v1]
Acked-by: José Fonseca <jfonseca@vmware.com> [v1]
2012-02-28 13:07:12 -08:00
Kenneth Graunke d3073f58c1 Convert everything from the talloc API to the ralloc API. 2011-01-31 10:17:09 -08:00
Kenneth Graunke 7dcfc44b72 glsl: Define GL_ES preprocessor macro if API is OpenGL ES 2.0.
Also define it if #version 100 is encountered.
2010-09-07 17:30:37 -07:00
Kenneth Graunke 1ffc1cd861 glcpp: Remove xtalloc wrappers in favor of plain talloc.
Calling exit() on a memory failure probably made sense for the
standalone preprocessor, but doesn't seem too appealing as part of
the GL library.  Also, we don't use it in the main compiler.
2010-08-04 15:57:20 -07:00
Aras Pranckevicius 31747155ea glsl2: Give the path within src/mesa/ for headers instead of relying on -I. 2010-08-02 10:59:46 -07:00
Carl Worth a0cfe8c440 glsl: Fix missing initialization of yylloc.source
In both the preprocessor and in the compiler proper, we use a custom
yyltype struct to allow tracking the source-string number in addition
to line and column. However, we were previously relying on bison's
default initialization of the yyltype struct which of course is not
aware of the source field and leaves it uninitialized.

We fix this by defining our own YYLLOC_DEFAULT macro expanding on the
default version (as appears in the bison manual) and adding
initialization of yylloc.source.
2010-07-21 13:52:33 -07:00
Ian Romanick 06143ea094 glsl2: Conditionally define preprocessor tokens for optional extensions
The only optional extension currently supported by the compiler is
GL_EXT_texture_array.
2010-07-01 20:40:08 -07:00
Eric Anholt 2928588267 glsl2: Move the compiler to the subdirectory it will live in in Mesa. 2010-06-24 15:36:00 -07:00