commit a879d14ecf818d767f5da9dd7fd3b0cd8816cf29
author Brian Paul <brianp@vmware.com> Thu Jun 24 14:10:24 2010 -0600
committer Brian Paul <brianp@vmware.com> Fri Jun 25 08:47:33 2010 -0600
tree 3ea18cefafc97564458fa8bc281180737cc107bb
parent cc8c142e2ab3575f864bba9e634ec87995aad601

mesa: initialize extension string when context is first bound

...instead of waiting until glGetString(GL_EXTENSIONS) is called.
This fixes a problem where the MESA_EXTENSION_OVERRIDE env var is
ignored if the app never calls glGetString(GL_EXTENSIONS).

NOTE: this is a candidate patch for the 7.8 branch.

src/mesa/main/context.c

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 0afd77d..f597b23 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1462,6 +1462,8 @@
       if (newCtx->FirstTimeCurrent) {
          _mesa_compute_version(newCtx);
 
+         newCtx->Extensions.String = _mesa_make_extension_string(newCtx);
+
          check_context_limits(newCtx);
 
          /* We can use this to help debug user's problems.  Tell them to set

src/mesa/main/getstring.c

diff --git a/src/mesa/main/getstring.c b/src/mesa/main/getstring.c
index 54db579..7961ad7 100644
--- a/src/mesa/main/getstring.c
+++ b/src/mesa/main/getstring.c
@@ -95,8 +95,6 @@
       case GL_VERSION:
          return (const GLubyte *) ctx->VersionString;
       case GL_EXTENSIONS:
-         if (!ctx->Extensions.String)
-            ctx->Extensions.String = _mesa_make_extension_string(ctx);
          return (const GLubyte *) ctx->Extensions.String;
 #if FEATURE_ARB_shading_language_100 || FEATURE_ES2
       case GL_SHADING_LANGUAGE_VERSION: