Mesa (master): i965: Always look up from the object' s mt when setting up texturing state.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 9c116d5eacf286cd8548d64ba8ce6528edb889c9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9c116d5eacf286cd8548d64ba8ce6528edb889c9

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Sep 17 16:16:20 2013 -0700

i965: Always look up from the object's mt when setting up texturing state.

We know that the object's mt is equal to the firstimage's mt because it's
gone through intel_finalize_mipmap_tree().  Saves a lookup of firstimage
on pre-gen7.

v2: Merge in the warning fix that appeared later in the series (noted by
    Chad)

Reviewed-by: Chad Versace <chad.versace at linux.intel.com>

---

 src/mesa/drivers/dri/i965/brw_wm_surface_state.c  |    4 +---
 src/mesa/drivers/dri/i965/gen7_wm_surface_state.c |    3 +--
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 471fd03..066df9d 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -257,8 +257,6 @@ brw_update_texture_surface(struct gl_context *ctx,
    struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
    struct intel_texture_object *intelObj = intel_texture_object(tObj);
    struct intel_mipmap_tree *mt = intelObj->mt;
-   struct gl_texture_image *firstImage = tObj->Image[0][tObj->BaseLevel];
-   struct intel_texture_image *intel_image = intel_texture_image(firstImage);
    struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
    uint32_t *surf;
 
@@ -281,7 +279,7 @@ brw_update_texture_surface(struct gl_context *ctx,
 
    surf[1] = intelObj->mt->region->bo->offset + intelObj->mt->offset; /* reloc */
 
-   surf[2] = ((intelObj->_MaxLevel - intel_image->mt->first_level) << BRW_SURFACE_LOD_SHIFT |
+   surf[2] = ((intelObj->_MaxLevel - mt->first_level) << BRW_SURFACE_LOD_SHIFT |
 	      (mt->logical_width0 - 1) << BRW_SURFACE_WIDTH_SHIFT |
 	      (mt->logical_height0 - 1) << BRW_SURFACE_HEIGHT_SHIFT);
 
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
index 7571cbf..f0d87eb 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
@@ -306,7 +306,6 @@ gen7_update_texture_surface(struct gl_context *ctx,
    struct intel_texture_object *intelObj = intel_texture_object(tObj);
    struct intel_mipmap_tree *mt = intelObj->mt;
    struct gl_texture_image *firstImage = tObj->Image[0][tObj->BaseLevel];
-   struct intel_texture_image *intel_image = intel_texture_image(firstImage);
    struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
 
    if (tObj->Target == GL_TEXTURE_BUFFER) {
@@ -350,7 +349,7 @@ gen7_update_texture_surface(struct gl_context *ctx,
 
    surf[5] = (SET_FIELD(GEN7_MOCS_L3, GEN7_SURFACE_MOCS) |
               /* mip count */
-              (intelObj->_MaxLevel - intel_image->mt->first_level));
+              (intelObj->_MaxLevel - mt->first_level));
 
    if (brw->is_haswell) {
       /* Handling GL_ALPHA as a surface format override breaks 1.30+ style