mesa: Put materials at the end of the generic block.

The materials are now moved to the end of the
generic attributes block to the range 4-15.

Before, the way the position and generic 0 attribute
is handled was dependent on the presence and kind of
the currently attached vertex program. With this
change the way the position attribute and the generic 0
attribute is treated only depends on the enabled
flag of those two arrays.
This will later help to untangle the update dependencies
between enabled arrays and shader inputs.

v2: s,VERT_ATTRIB_MAT_OFFSET,VERT_ATTRIB_MAT0,g

Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Brian Paul <brianp@vmware.com>

src/compiler/shader_enums.h

@@ -127,6 +127,8 @@ const char *gl_vert_attrib_name(gl_vert_attrib attrib);
  * VERT_ATTRIB_MAT
  *   include the generic shader attributes used to alias
  *   varying material values for the TNL shader programs.
+ *   They are located at the end of the generic attribute
+ *   block not to overlap with the generic 0 attribute.
  */
 #define VERT_ATTRIB_FF(i)           (VERT_ATTRIB_POS + (i))
 #define VERT_ATTRIB_FF_MAX          VERT_ATTRIB_GENERIC0
@@ -137,7 +139,10 @@ const char *gl_vert_attrib_name(gl_vert_attrib attrib);
 #define VERT_ATTRIB_GENERIC(i)      (VERT_ATTRIB_GENERIC0 + (i))
 #define VERT_ATTRIB_GENERIC_MAX     MAX_VERTEX_GENERIC_ATTRIBS
 
-#define VERT_ATTRIB_MAT(i)          VERT_ATTRIB_GENERIC(i)
+#define VERT_ATTRIB_MAT0            \
+   (VERT_ATTRIB_GENERIC_MAX - VERT_ATTRIB_MAT_MAX)
+#define VERT_ATTRIB_MAT(i)          \
+   VERT_ATTRIB_GENERIC((i) + VERT_ATTRIB_MAT0)
 #define VERT_ATTRIB_MAT_MAX         MAT_ATTRIB_MAX
 
 /**

src/mesa/tnl/t_context.h

@@ -158,8 +158,8 @@ enum {
 #define _TNL_FIRST_GENERIC _TNL_ATTRIB_GENERIC0
 #define _TNL_LAST_GENERIC  _TNL_ATTRIB_GENERIC15
 
-#define _TNL_FIRST_MAT       _TNL_ATTRIB_MAT_FRONT_AMBIENT /* GENERIC0 */
+#define _TNL_FIRST_MAT       _TNL_ATTRIB_MAT_FRONT_AMBIENT /* GENERIC4 */
-#define _TNL_LAST_MAT        _TNL_ATTRIB_MAT_BACK_INDEXES  /* GENERIC11 */
+#define _TNL_LAST_MAT        _TNL_ATTRIB_MAT_BACK_INDEXES  /* GENERIC15 */
 
 /* Number of available texture attributes */
 #define _TNL_NUM_TEX 8

src/mesa/vbo/vbo_exec_array.c

@@ -335,20 +335,20 @@ recalculate_input_bindings(struct gl_context *ctx)
          }
       }
 
+      /* Could use just about anything, just to fill in the empty
+       * slots:
+       */
+      for (i = 0; i < VERT_ATTRIB_MAT0; i++) {
+         inputs[VERT_ATTRIB_GENERIC(i)] =
+            &vbo->currval[VBO_ATTRIB_GENERIC0 + i];
+         const_inputs |= VERT_BIT_GENERIC(i);
+      }
+
       for (i = 0; i < VERT_ATTRIB_MAT_MAX; i++) {
          inputs[VERT_ATTRIB_MAT(i)] =
             &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT + i];
          const_inputs |= VERT_BIT_MAT(i);
       }
-
-      /* Could use just about anything, just to fill in the empty
-       * slots:
-       */
-      for (i = VERT_ATTRIB_MAT_MAX; i < VERT_ATTRIB_GENERIC_MAX; i++) {
-         inputs[VERT_ATTRIB_GENERIC(i)] =
-            &vbo->currval[VBO_ATTRIB_GENERIC0 + i];
-         const_inputs |= VERT_BIT_GENERIC(i);
-      }
       break;
 
    case VP_SHADER:

src/mesa/vbo/vbo_exec_draw.c

@@ -187,16 +187,16 @@ vbo_exec_bind_arrays(struct gl_context *ctx)
    /* Overlay other active attributes */
    switch (get_vp_mode(exec->ctx)) {
    case VP_FF:
+      for (attr = 0; attr < VERT_ATTRIB_MAT0; attr++) {
+         assert(VERT_ATTRIB_GENERIC(attr) < ARRAY_SIZE(exec->vtx.inputs));
+         exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
+            &vbo->currval[VBO_ATTRIB_GENERIC0+attr];
+      }
       for (attr = 0; attr < VERT_ATTRIB_MAT_MAX; attr++) {
          assert(VERT_ATTRIB_MAT(attr) < ARRAY_SIZE(exec->vtx.inputs));
          exec->vtx.inputs[VERT_ATTRIB_MAT(attr)] =
             &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+attr];
       }
-      for (attr = VERT_ATTRIB_MAT_MAX; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
-         assert(VERT_ATTRIB_GENERIC(attr) < ARRAY_SIZE(exec->vtx.inputs));
-         exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
-            &vbo->currval[VBO_ATTRIB_GENERIC0+attr];
-      }
       map = vbo->map_vp_none;
       break;
    case VP_SHADER:

src/mesa/vbo/vbo_save_draw.c

@@ -151,14 +151,14 @@ bind_vertex_list(struct gl_context *ctx,
    /* Overlay other active attributes */
    switch (get_vp_mode(ctx)) {
    case VP_FF:
+      for (attr = 0; attr < VERT_ATTRIB_MAT0; attr++) {
+         save->inputs[VERT_ATTRIB_GENERIC(attr)] =
+            &vbo->currval[VBO_ATTRIB_GENERIC0+attr];
+      }
       for (attr = 0; attr < VERT_ATTRIB_MAT_MAX; attr++) {
          save->inputs[VERT_ATTRIB_MAT(attr)] =
             &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+attr];
       }
-      for (attr = VERT_ATTRIB_MAT_MAX; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
-         save->inputs[VERT_ATTRIB_GENERIC(attr)] =
-            &vbo->currval[VBO_ATTRIB_GENERIC0+attr];
-      }
       map = vbo->map_vp_none;
       break;
    case VP_SHADER: