gallium: rationalize vertex_element state packet

Remove dst_offset (not used)
Add nr_components, which could be calculated from format, but would be
too much effort.

Update i965 driver to cope.

5 files changed, 29 insertions, 51 deletions

diff --git a/src/mesa/pipe/i965simple/brw_context.h b/src/mesa/pipe/i965simple/brw_context.h
index 11146570be7..fc2cb055e97 100644
--- a/src/mesa/pipe/i965simple/brw_context.h
+++ b/src/mesa/pipe/i965simple/brw_context.h
@@ -443,14 +443,6 @@ struct brw_cached_batch_item {
  */
 #define ATTRIB_BIT_DWORDS  ((PIPE_ATTRIB_MAX+31)/32)
 
-struct brw_vertex_element {
-   struct brw_vertex_element_state vep;
-
-   unsigned index;
-   unsigned element_size;
-   unsigned count;
-   unsigned vbo_rebase_offset;
-};
 
 
 
@@ -508,7 +500,7 @@ struct brw_context
        */
       struct pipe_vertex_buffer *vbo_array[PIPE_ATTRIB_MAX];
 
-      struct brw_vertex_element inputs[PIPE_ATTRIB_MAX];
+      struct brw_vertex_element_state inputs[PIPE_ATTRIB_MAX];
 
 #define BRW_NR_UPLOAD_BUFS 17
 #define BRW_UPLOAD_INIT_SIZE (128*1024)
diff --git a/src/mesa/pipe/i965simple/brw_draw_upload.c b/src/mesa/pipe/i965simple/brw_draw_upload.c
index 19626ca633c..88d6c9d1114 100644
--- a/src/mesa/pipe/i965simple/brw_draw_upload.c
+++ b/src/mesa/pipe/i965simple/brw_draw_upload.c
@@ -260,18 +260,8 @@ boolean brw_upload_vertex_elements( struct brw_context *brw )
 
    memset(&vep, 0, sizeof(vep));
 
-   for (i = 0; i < nr_enabled; i++) {
-      struct brw_vertex_element *input = &brw->vb.inputs[i];
-
-      switch (brw->vb.vbo_array[input->vep.ve0.vertex_buffer_index]->pitch) {
-      case 0: input->vep.ve1.vfcomponent0 = BRW_VFCOMPONENT_STORE_0;
-      case 1: input->vep.ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_0;
-      case 2: input->vep.ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_0;
-      case 3: input->vep.ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_1_FLT;
-	 break;
-      }
-      vep.ve[i] = input->vep;
-   }
+   for (i = 0; i < nr_enabled; i++) 
+      vep.ve[i] = brw->vb.inputs[i];
 
 
    vep.header.length = (1 + nr_enabled * sizeof(vep.ve[0])/4) - 2;
diff --git a/src/mesa/pipe/i965simple/brw_state.c b/src/mesa/pipe/i965simple/brw_state.c
index 20088536549..daf14ff4ff2 100644
--- a/src/mesa/pipe/i965simple/brw_state.c
+++ b/src/mesa/pipe/i965simple/brw_state.c
@@ -272,31 +272,27 @@ static void brw_set_vertex_element(struct pipe_context *pipe,
    struct brw_context *brw = brw_context(pipe);
 
    assert(index < PIPE_ATTRIB_MAX);
-   struct brw_vertex_element el;
-   memset(&el, 0, sizeof(struct brw_vertex_element));
-
-   /* do we need those anymore?*/
-   el.index = index;
-#if 0
-   /*FIXME*/
-   el.element_size = 0;
-   el.count = 0;
-   el.vbo_rebase_offset = 0;
-#endif
-
-   el.vep.ve0.src_offset = element->src_offset;
-   el.vep.ve0.src_format = brw_translate_surface_format(element->src_format);
-   el.vep.ve0.valid = 1;
-   el.vep.ve0.vertex_buffer_index = element->vertex_buffer_index;
-
-   el.vep.ve1.dst_offset   = index * 4;
-   el.vep.ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_SRC;
-   el.vep.ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_SRC;
-   el.vep.ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_SRC;
-   el.vep.ve1.vfcomponent0 = BRW_VFCOMPONENT_STORE_SRC;
-   /*can we count of brw->vb.vbo_array[element->vertex_buffer_index]
-    * being initialized ok to actually compute vbcomponent's
-    * correctly? */
+   struct brw_vertex_element_state el;
+   memset(&el, 0, sizeof(el));
+
+   el.ve0.src_offset = element->src_offset;
+   el.ve0.src_format = brw_translate_surface_format(element->src_format);
+   el.ve0.valid = 1;
+   el.ve0.vertex_buffer_index = element->vertex_buffer_index;
+
+   el.ve1.dst_offset   = index * 4;
+
+   el.ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_SRC;
+   el.ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_SRC;
+   el.ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_SRC;
+   el.ve1.vfcomponent0 = BRW_VFCOMPONENT_STORE_SRC;
+
+   switch (element->nr_components) {
+   case 1: el.ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_0;
+   case 2: el.ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_0;
+   case 3: el.ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_1_FLT;
+      break;
+   }
 
    brw->vb.inputs[index] = el;
 }
diff --git a/src/mesa/pipe/p_state.h b/src/mesa/pipe/p_state.h
index b7793c6d314..16d50fdb826 100644
--- a/src/mesa/pipe/p_state.h
+++ b/src/mesa/pipe/p_state.h
@@ -307,8 +307,8 @@ struct pipe_vertex_element
     * this attribute live in?
     */
    unsigned vertex_buffer_index:5;
-
-   unsigned dst_offset:8; 
+   unsigned nr_components:3;
+ 
    enum pipe_format src_format; 	   /**< PIPE_FORMAT_* */
 };
 
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index 274ae86a3ec..a3e061d6048 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -289,7 +289,7 @@ st_draw_vbo(GLcontext *ctx,
       vbuffer[attr].pitch = arrays[mesaAttr]->StrideB; /* in bytes */
       vbuffer[attr].max_index = 0;  /* need this? */
       velement.vertex_buffer_index = attr;
-      velement.dst_offset = 0; /* need this? */
+      velement.nr_components = arrays[mesaAttr]->Size;
       velement.src_format = pipe_vertex_format(arrays[mesaAttr]->Type,
                                                arrays[mesaAttr]->Size,
                                                arrays[mesaAttr]->Normalized);
@@ -415,7 +415,7 @@ st_draw_vertices(GLcontext *ctx, unsigned prim,
       velement.src_offset = i * 4 * sizeof(GLfloat);
       velement.vertex_buffer_index = 0;
       velement.src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
-      velement.dst_offset = 0;
+      velement.nr_components = 4;
       pipe->set_vertex_element(pipe, i, &velement);
    }
 
@@ -547,7 +547,7 @@ st_feedback_draw_vbo(GLcontext *ctx,
       vbuffer[attr].pitch = arrays[mesaAttr]->StrideB; /* in bytes */
       vbuffer[attr].max_index = 0;  /* need this? */
       velement.vertex_buffer_index = attr;
-      velement.dst_offset = 0; /* need this? */
+      velement.nr_components = arrays[mesaAttr]->Size;
       velement.src_format = pipe_vertex_format(arrays[mesaAttr]->Type,
                                                arrays[mesaAttr]->Size,
                                                arrays[mesaAttr]->Normalized);