ARB prog parser: Release old program string in _mesa_parse_arb_{fragment,vertex}_program

The program structure passed to _mesa_parse_arb_program is just a
place holder.  The stings that actually need to be released are only
known to the functions calling _mesa_parse_arb_program, so they should
be freed there.

2 files changed, 6 insertions, 4 deletions

diff --git a/src/mesa/shader/arbprogparse.c b/src/mesa/shader/arbprogparse.c
index 05ee4f5..dd732b6 100644
--- a/src/mesa/shader/arbprogparse.c
+++ b/src/mesa/shader/arbprogparse.c
@@ -87,6 +87,9 @@ _mesa_parse_arb_fragment_program(GLcontext* ctx, GLenum target,
       return;
    }
 
+   if (program->Base.String != NULL)
+      _mesa_free(program->Base.String);
+
    /* Copy the relevant contents of the arb_program struct into the
     * fragment_program struct.
     */
@@ -178,6 +181,9 @@ _mesa_parse_arb_vertex_program(GLcontext *ctx, GLenum target,
       return;
    }
 
+   if (program->Base.String != NULL)
+      _mesa_free(program->Base.String);
+
    /* Copy the relevant contents of the arb_program struct into the 
     * vertex_program struct.
     */
diff --git a/src/mesa/shader/program_parse.y b/src/mesa/shader/program_parse.y
index b2db295..aad5eeb 100644
--- a/src/mesa/shader/program_parse.y
+++ b/src/mesa/shader/program_parse.y
@@ -2304,10 +2304,6 @@ _mesa_parse_arb_program(GLcontext *ctx, GLenum target, const GLubyte *str,
    _mesa_memcpy (strz, str, len);
    strz[len] = '\0';
 
-   if (state->prog->String != NULL) {
-      _mesa_free(state->prog->String);
-   }
-
    state->prog->String = strz;
 
    state->st = _mesa_symbol_table_ctor();