From: Eric Anholt <eric@anholt.net>
Date: Wed, 23 Jan 2013 01:27:14 +0000 (-0800)
Subject: i965: Stop worrying about alignment of vertex data.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5ae3c207918e10282f53402ae276b31b2235c2dc;p=mesa.git

i965: Stop worrying about alignment of vertex data.

For our current types, the required alignment is actually just 1 byte.
When we get doubles, we have to worry (those have to be aligned to the
natural size), but we don't have doubles yet and they'll just be a
special case.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---

diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 06a58860f21..31282ddddcb 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -462,7 +462,6 @@ static void brw_prepare_vertices(struct brw_context *brw)
    for (i = j = 0; i < brw->vb.nr_enabled; i++) {
       struct brw_vertex_element *input = brw->vb.enabled[i];
       const struct gl_client_array *glarray = input->glarray;
-      int type_size = get_size(glarray->Type);
 
       if (_mesa_is_bufferobj(glarray->BufferObj)) {
 	 struct intel_buffer_object *intel_buffer =
@@ -490,7 +489,7 @@ static void brw_prepare_vertices(struct brw_context *brw)
 
 	    /* Named buffer object: Just reference its contents directly. */
             buffer->bo = intel_bufferobj_source(intel,
-                                                intel_buffer, type_size,
+                                                intel_buffer, 1,
 						&buffer->offset);
 	    drm_intel_bo_reference(buffer->bo);
 	    buffer->offset += (uintptr_t)glarray->Ptr;
@@ -527,11 +526,6 @@ static void brw_prepare_vertices(struct brw_context *brw)
 	 {
 	    interleaved = 0;
 	 }
-	 else if ((uintptr_t)(glarray->Ptr - ptr) & (type_size -1))
-	 {
-	    /* enforce natural alignment (for doubles) */
-	    interleaved = 0;
-	 }
 
 	 upload[nr_uploads++] = input;
       }