1 files changed, 47 insertions, 10 deletions

diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c
index 050ebf02701..f86f1911d1d 100644
--- a/src/mesa/main/transformfeedback.c
+++ b/src/mesa/main/transformfeedback.c
@@ -35,10 +35,12 @@
 #include "context.h"
 #include "hash.h"
 #include "transformfeedback.h"
+#include "shaderapi.h"
+#include "shaderobj.h"
 #include "main/dispatch.h"
 
-#include "shader/prog_parameter.h"
-#include "shader/shader_api.h"
+#include "program/prog_parameter.h"
+//#include "program/shader_api.h"
 
 
 #if FEATURE_EXT_transform_feedback
@@ -132,10 +134,8 @@ _mesa_validate_transform_feedback_buffers(GLcontext *ctx)
 void
 _mesa_init_transform_feedback(GLcontext *ctx)
 {
-   if (!ctx->Driver.NewTransformFeedback) {
-      /* this feature/extension may not be supported by the driver */
-      return;
-   }
+   /* core mesa expects this, even a dummy one, to be available */
+   ASSERT(ctx->Driver.NewTransformFeedback);
 
    ctx->TransformFeedback.DefaultObject =
       ctx->Driver.NewTransformFeedback(ctx, 0);
@@ -176,10 +176,8 @@ delete_cb(GLuint key, void *data, void *userData)
 void
 _mesa_free_transform_feedback(GLcontext *ctx)
 {
-   if (!ctx->Driver.NewTransformFeedback) {
-      /* this feature/extension may not be supported by the driver */
-      return;
-   }
+   /* core mesa expects this, even a dummy one, to be available */
+   ASSERT(ctx->Driver.NewTransformFeedback);
 
    _mesa_reference_buffer_object(ctx,
                                  &ctx->TransformFeedback.CurrentBuffer,
@@ -187,6 +185,7 @@ _mesa_free_transform_feedback(GLcontext *ctx)
 
    /* Delete all feedback objects */
    _mesa_HashDeleteAll(ctx->TransformFeedback.Objects, delete_cb, ctx);
+   _mesa_DeleteHashTable(ctx->TransformFeedback.Objects);
 
    /* Delete the default feedback object */
    assert(ctx->Driver.DeleteTransformFeedback);
@@ -197,6 +196,40 @@ _mesa_free_transform_feedback(GLcontext *ctx)
 }
 
 
+#else /* FEATURE_EXT_transform_feedback */
+
+/* forward declarations */
+static struct gl_transform_feedback_object *
+new_transform_feedback(GLcontext *ctx, GLuint name);
+
+static void
+delete_transform_feedback(GLcontext *ctx,
+                          struct gl_transform_feedback_object *obj);
+
+/* dummy per-context init/clean-up for transform feedback */
+void
+_mesa_init_transform_feedback(GLcontext *ctx)
+{
+   ctx->TransformFeedback.DefaultObject = new_transform_feedback(ctx, 0);
+   ctx->TransformFeedback.CurrentObject = ctx->TransformFeedback.DefaultObject;
+   _mesa_reference_buffer_object(ctx,
+                                 &ctx->TransformFeedback.CurrentBuffer,
+                                 ctx->Shared->NullBufferObj);
+}
+
+void
+_mesa_free_transform_feedback(GLcontext *ctx)
+{
+   _mesa_reference_buffer_object(ctx,
+                                 &ctx->TransformFeedback.CurrentBuffer,
+                                 NULL);
+   ctx->TransformFeedback.CurrentObject = NULL;
+   delete_transform_feedback(ctx, ctx->TransformFeedback.DefaultObject);
+}
+
+#endif /* FEATURE_EXT_transform_feedback */
+
+
 /** Default fallback for ctx->Driver.NewTransformFeedback() */
 static struct gl_transform_feedback_object *
 new_transform_feedback(GLcontext *ctx, GLuint name)
@@ -224,6 +257,10 @@ delete_transform_feedback(GLcontext *ctx,
    free(obj);
 }
 
+
+#if FEATURE_EXT_transform_feedback
+
+
 /** Default fallback for ctx->Driver.BeginTransformFeedback() */
 static void
 begin_transform_feedback(GLcontext *ctx, GLenum mode,