brkho/mesa: Clone of mesa. - mesa

Clone of mesa.

Paul Berry 3097715d41 glsl: Rewrote _mesa_glsl_process_extension to use table-driven logic. Instead of using a chain of manually maintained if/else blocks to handle "#extension" directives, we now consult a table that specifies, for each extension, the circumstances under which it is available, and what flags in _mesa_glsl_parse_state need to be set in order to activate it. This makes it easier to add new GLSL extensions in the future, and fixes the following bugs: - Previously, _mesa_glsl_process_extension would sometimes set the "_enable" and "_warn" flags for an extension before checking whether the extension was supported by the driver; as a result, specifying "enable" behavior for an unsupported extension would sometimes cause front-end support for that extension to be switched on in spite of the fact that back-end support was not available, leading to strange failures, such as those in https://bugs.freedesktop.org/show_bug.cgi?id=38015. - "#extension all: warn" and "#extension all: disable" had no effect. Notes: - All extensions are currently marked as unavailable in geometry shaders. This should not have any adverse effects since geometry shaders aren't supported yet. When we return to working on geometry shader support, we'll need to update the table for those extensions that are available in geometry shaders. - Previous to this commit, if a shader mentioned ARB_shader_texture_lod, extension ARB_texture_rectangle would be automatically turned on in order to ensure that the types sampler2DRect and sampler2DRectShadow would be defined. This was unnecessary, because (a) ARB_shader_texture_lod works perfectly well without those types provided that the builtin functions that reference them are not called, and (b) ARB_texture_rectangle is enabled by default in non-ES contexts anyway. I eliminated this unnecessary behavior in order to make the behavior of all extensions consistent. NOTE: This is a candidate for the 7.10 and 7.11 branches. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>		14 年之前
bin	darwin: mklib: Make the real file match the id	14 年之前
configs	Add gbm (generic/graphics buffer manager)	14 年之前
docs	docs: update EGL for changed configure options	14 年之前
doxygen	doxygen: Add glsl to the Makefile and .gitignore.	14 年之前
include	Add gbm (generic/graphics buffer manager)	14 年之前
scons	scons: Accept verbose=yes instead of quiet=no.	14 年之前
src	glsl: Rewrote _mesa_glsl_process_extension to use table-driven logic.	14 年之前
.emacs-dirvars	Add emacs dirvars file with Mesa indention definition.	18 年之前
.gitattributes	Disable autocrlf for Visual Studio project files.	17 年之前
.gitignore	.gitignore: Ignore emacs .dir-locals.el files	15 年之前
Makefile	Add gbm (generic/graphics buffer manager)	14 年之前
SConstruct	scons: List all targets.	14 年之前
acinclude.m4	autoconf: Attempt to figure out the PIC flags for the platform	17 年之前
autogen.sh	autogen: Make sure MAKEFLAGS is not set before running autoreconf	16 年之前
common.py	scons: Don't list MSVS_VERSION option outside windows platforms.	14 年之前
configure.ac	glx: Check HAVE_XF86VIDMODE before adding it as an implicit link	14 年之前