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Diffstat (limited to 'src/mesa/program/prog_parameter.c')
-rw-r--r--src/mesa/program/prog_parameter.c47
1 files changed, 32 insertions, 15 deletions
diff --git a/src/mesa/program/prog_parameter.c b/src/mesa/program/prog_parameter.c
index 53e9813e6fd..e98946b9387 100644
--- a/src/mesa/program/prog_parameter.c
+++ b/src/mesa/program/prog_parameter.c
@@ -89,6 +89,37 @@ _mesa_free_parameter_list(struct gl_program_parameter_list *paramList)
/**
+ * Make sure there are enough unused parameter slots. Reallocate the list
+ * if needed.
+ *
+ * \param paramList where to reserve parameter slots
+ * \param reserve_slots number of slots to reserve
+ */
+void
+_mesa_reserve_parameter_storage(struct gl_program_parameter_list *paramList,
+ unsigned reserve_slots)
+{
+ const GLuint oldNum = paramList->NumParameters;
+
+ if (oldNum + reserve_slots > paramList->Size) {
+ /* Need to grow the parameter list array (alloc some extra) */
+ paramList->Size = paramList->Size + 4 * reserve_slots;
+
+ /* realloc arrays */
+ paramList->Parameters =
+ realloc(paramList->Parameters,
+ paramList->Size * sizeof(struct gl_program_parameter));
+
+ paramList->ParameterValues = (gl_constant_value (*)[4])
+ _mesa_align_realloc(paramList->ParameterValues, /* old buf */
+ oldNum * 4 * sizeof(gl_constant_value),/* old sz */
+ paramList->Size*4*sizeof(gl_constant_value),/*new*/
+ 16);
+ }
+}
+
+
+/**
* Add a new parameter to a parameter list.
* Note that parameter values are usually 4-element GLfloat vectors.
* When size > 4 we'll allocate a sequential block of parameters to
@@ -115,21 +146,7 @@ _mesa_add_parameter(struct gl_program_parameter_list *paramList,
assert(size > 0);
- if (oldNum + sz4 > paramList->Size) {
- /* Need to grow the parameter list array (alloc some extra) */
- paramList->Size = paramList->Size + 4 * sz4;
-
- /* realloc arrays */
- paramList->Parameters =
- realloc(paramList->Parameters,
- paramList->Size * sizeof(struct gl_program_parameter));
-
- paramList->ParameterValues = (gl_constant_value (*)[4])
- _mesa_align_realloc(paramList->ParameterValues, /* old buf */
- oldNum * 4 * sizeof(gl_constant_value),/* old sz */
- paramList->Size*4*sizeof(gl_constant_value),/*new*/
- 16);
- }
+ _mesa_reserve_parameter_storage(paramList, sz4);
if (!paramList->Parameters ||
!paramList->ParameterValues) {