mesa: Call TransformFeedback driver hooks before setting flags.

This way, the driver's EndTransformFeedback() hook can tell whether the
transform feedback operation was paused.  It's also convenient to have
Paused remain false until the driver's PauseTransformFeedback hook
finishes.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c
index c92f0ccd5a5eaf44facc0d6162fc785fa719c27f..9c06bc84009f7705e19ad396e305a7139698ab75 100644 (file)
--- a/src/mesa/main/transformfeedback.c
+++ b/src/mesa/main/transformfeedback.c
@@ -505,12 +505,12 @@ _mesa_EndTransformFeedback(void)
    FLUSH_VERTICES(ctx, 0);
    ctx->NewDriverState |= ctx->DriverFlags.NewTransformFeedback;
 
+   assert(ctx->Driver.EndTransformFeedback);
+   ctx->Driver.EndTransformFeedback(ctx, obj);
+
    ctx->TransformFeedback.CurrentObject->Active = GL_FALSE;
    ctx->TransformFeedback.CurrentObject->Paused = GL_FALSE;
    ctx->TransformFeedback.CurrentObject->EndedAnytime = GL_TRUE;
-
-   assert(ctx->Driver.EndTransformFeedback);
-   ctx->Driver.EndTransformFeedback(ctx, obj);
 }
 
 
@@ -1173,10 +1173,10 @@ _mesa_PauseTransformFeedback(void)
    FLUSH_VERTICES(ctx, 0);
    ctx->NewDriverState |= ctx->DriverFlags.NewTransformFeedback;
 
-   obj->Paused = GL_TRUE;
-
    assert(ctx->Driver.PauseTransformFeedback);
    ctx->Driver.PauseTransformFeedback(ctx, obj);
+
+   obj->Paused = GL_TRUE;
 }