[cogl] cogl-pipeline-fragend-fixed: Fix enabling texture targets

[Neil Roberts <nroberts src gnome org>]

commit 54f94a0ed07e2d01e719f21120cb92ea3e492269
Author: Neil Roberts <neil linux intel com>
Date:   Tue May 24 16:37:11 2011 +0100

    cogl-pipeline-fragend-fixed: Fix enabling texture targets
    
    When flushing a pipeline that has more layers than the previous
    pipeline, the fixed function fragend is supposed to detect that the
    texture unit previously had no texture target enabled and then enable
    it. However the logic for checking whether the unit was enabled was
    broken due to a typing failure when unit->enabled and
    unit->current_gl_target were combined into one value in commit
    6b7139b0. This was breaking some of the conformance tests when the
    fixed function fragend is used.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=650979

 cogl/cogl-pipeline-fragend-fixed.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/cogl/cogl-pipeline-fragend-fixed.c b/cogl/cogl-pipeline-fragend-fixed.c
index 5f9fb7f..ee80b5e 100644
--- a/cogl/cogl-pipeline-fragend-fixed.c
+++ b/cogl/cogl-pipeline-fragend-fixed.c
@@ -180,7 +180,7 @@ _cogl_pipeline_fragend_fixed_add_layer (CoglPipeline *pipeline,
        * it's enabled now.
        */
       if (!G_UNLIKELY (COGL_DEBUG_ENABLED (COGL_DEBUG_DISABLE_TEXTURING)) &&
-          !unit->enabled_gl_target == 0)
+          unit->enabled_gl_target == 0)
         {
           _cogl_set_active_texture_unit (unit_index);
           GE (glEnable (unit->gl_target));