Mesa (master): glsl: Enable AMD_conservative_depth in parser

[Chad Versace]

Module: Mesa
Branch: master
Commit: 8ba260e09910d6906fba17a78eee6d1b0cf8069d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8ba260e09910d6906fba17a78eee6d1b0cf8069d

Author: Chad Versace <chad.versace at intel.com>
Date:   Thu Jan 27 01:40:39 2011 -0800

glsl: Enable AMD_conservative_depth in parser

All the necessary compiler infrastructure for AMD_conservative_depth is in
place, so it's safe to enable it in the parser.

---

 src/glsl/glsl_parser_extras.cpp |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 77885d4..c9a8a2c 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -219,6 +219,13 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
 	 state->ARB_shader_stencil_export_warn = (ext_mode == extension_warn);
 	 unsupported = !state->extensions->ARB_shader_stencil_export;
       }
+   } else if (strcmp(name, "GL_AMD_conservative_depth") == 0) {
+      /* The AMD_conservative spec does not forbid requiring the extension in
+       * the vertex shader.
+       */
+      state->AMD_conservative_depth_enable = (ext_mode != extension_disable);
+      state->AMD_conservative_depth_warn = (ext_mode == extension_warn);
+      unsupported = !state->extensions->AMD_conservative_depth;
    } else {
       unsupported = true;
    }