mesa/st+tgsi: Provide a free callback to match with ureg_get_tokens().

This fixes crashes with the memory debugging routines on Windows.

NOTE: This is a candidate for the 7.8 stable branch

3 files changed, 12 insertions, 2 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 49b854b1234..5fda808dbef 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -1467,6 +1467,12 @@ const struct tgsi_token *ureg_get_tokens( struct ureg_program *ureg,
 }
 
 
+void ureg_free_tokens( const struct tgsi_token *tokens )
+{
+   FREE((struct tgsi_token *)tokens);
+}
+
+
 struct ureg_program *ureg_create( unsigned processor )
 {
    struct ureg_program *ureg = CALLOC_STRUCT( ureg_program );
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index f32420dd872..055545f3d2a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -104,6 +104,10 @@ ureg_get_tokens( struct ureg_program *ureg,
                  unsigned *nr_tokens );
 
 
+/* Free the tokens created by ureg_get_tokens() */
+void ureg_free_tokens( const struct tgsi_token *tokens );
+
+
 void 
 ureg_destroy( struct ureg_program * );
 
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 3002d3fac36..d8c2fb7ffba 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1140,7 +1140,7 @@ st_destroy_drawpix(struct st_context *st)
    st_reference_fragprog(st, &st->drawpix.z_shader, NULL);
    st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
    if (st->drawpix.vert_shaders[0])
-      free(st->drawpix.vert_shaders[0]);
+      ureg_free_tokens(st->drawpix.vert_shaders[0]);
    if (st->drawpix.vert_shaders[1])
-      free(st->drawpix.vert_shaders[1]);
+      ureg_free_tokens(st->drawpix.vert_shaders[1]);
 }