i965: minor code clean-ups, comments

diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
index ac7de6f95b56597dff410eca735bf45a751b5232..b37c51b3290d63941cbbacac9e5b0f51c4cc193a 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
@@ -189,21 +189,23 @@ static void prealloc_reg(struct brw_wm_compile *c)
 
     /* constants */
     {
-       int nr_params = c->fp->program.Base.Parameters->NumParameters;
-       struct gl_program_parameter_list *plist = 
+        const int nr_params = c->fp->program.Base.Parameters->NumParameters;
+        const struct gl_program_parameter_list *plist = 
            c->fp->program.Base.Parameters;
        int index = 0;
-       c->prog_data.nr_params = 4*nr_params;
+
+       c->prog_data.nr_params = 4 * nr_params;
        for (i = 0; i < nr_params; i++) {
-           for (j = 0; j < 4; j++, index++) {
-               reg = brw_vec1_grf(c->reg_index + index/8, 
-                       index%8);
-               c->prog_data.param[index] = 
-                   &plist->ParameterValues[i][j];
-               set_reg(c, PROGRAM_STATE_VAR, i, j, reg);
+            for (j = 0; j < 4; j++, index++) {
+                reg = brw_vec1_grf(c->reg_index + index/8, index%8);
+                /* Save pointer to parameter/constant value.
+                 * Constants will be copied in prepare_constant_buffer()
+                 */
+                c->prog_data.param[index] = &plist->ParameterValues[i][j];
+                set_reg(c, PROGRAM_STATE_VAR, i, j, reg);
            }
        }
-       c->nr_creg = 2*((4*nr_params+15)/16);
+       c->nr_creg = 2 * ((4 * nr_params + 15) / 16);
        c->reg_index += c->nr_creg;
     }