Mesa (master): i965: Don't forget to subtract mt-> first_level in minify calls.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: b18871c863fabec3ed383881d2cdd0298b157b06
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b18871c863fabec3ed383881d2cdd0298b157b06

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Sat Feb 22 23:47:30 2014 -0800

i965: Don't forget to subtract mt->first_level in minify calls.

This fixes fbo-clear-formats GL_ARB_depth_texture on Ironlake, which
regressed since commit f128bcc7c293013f4b44e4b661638333de0077c2
("i965: Drop mt->levels[].width/height.")  intel_miptree_copy_slice was
calling minify(.., 7) on a 2x2 texture with mt->first_level == 7.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75292
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Eric Anholt <eric at anholt.net>

---

 src/mesa/drivers/dri/i965/brw_blorp.cpp       |    4 ++--
 src/mesa/drivers/dri/i965/brw_clear.c         |    5 +++--
 src/mesa/drivers/dri/i965/intel_blit.c        |    4 ++--
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c |    8 ++++----
 src/mesa/drivers/dri/i965/intel_screen.c      |    4 ++--
 5 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp.cpp b/src/mesa/drivers/dri/i965/brw_blorp.cpp
index 5192fd3..f26d026 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp.cpp
@@ -68,8 +68,8 @@ brw_blorp_mip_info::set(struct intel_mipmap_tree *mt,
    this->mt = mt;
    this->level = level;
    this->layer = layer;
-   this->width = minify(mt->physical_width0, level);
-   this->height = minify(mt->physical_height0, level);
+   this->width = minify(mt->physical_width0, level - mt->first_level);
+   this->height = minify(mt->physical_height0, level - mt->first_level);
 
    intel_miptree_get_image_offset(mt, level, layer, &x_offset, &y_offset);
 }
diff --git a/src/mesa/drivers/dri/i965/brw_clear.c b/src/mesa/drivers/dri/i965/brw_clear.c
index b2cea98..6571e84 100644
--- a/src/mesa/drivers/dri/i965/brw_clear.c
+++ b/src/mesa/drivers/dri/i965/brw_clear.c
@@ -155,8 +155,9 @@ brw_fast_clear_depth(struct gl_context *ctx)
        *        width of the map (LOD0) is not multiple of 16, fast clear
        *        optimization must be disabled.
        */
-      if (brw->gen == 6 && (minify(mt->physical_width0,
-                                   depth_irb->mt_level) % 16) != 0)
+      if (brw->gen == 6 &&
+          (minify(mt->physical_width0,
+                  depth_irb->mt_level - mt->first_level) % 16) != 0)
 	 return false;
       /* FALLTHROUGH */
 
diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c
index d1c16d5..2126f1b 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.c
+++ b/src/mesa/drivers/dri/i965/intel_blit.c
@@ -219,10 +219,10 @@ intel_miptree_blit(struct brw_context *brw,
    intel_miptree_resolve_color(brw, dst_mt);
 
    if (src_flip)
-      src_y = minify(src_mt->physical_height0, src_level) - src_y - height;
+      src_y = minify(src_mt->physical_height0, src_level - src_mt->first_level) - src_y - height;
 
    if (dst_flip)
-      dst_y = minify(dst_mt->physical_height0, dst_level) - dst_y - height;
+      dst_y = minify(dst_mt->physical_height0, dst_level - dst_mt->first_level) - dst_y - height;
 
    int src_pitch = src_mt->region->pitch;
    if (src_flip != dst_flip)
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 97816d4..202bb52 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -876,8 +876,8 @@ intel_miptree_match_image(struct intel_mipmap_tree *mt,
     * minification.  This will also catch images not present in the
     * tree, changed targets, etc.
     */
-   if (width != minify(mt->logical_width0, level) ||
-       height != minify(mt->logical_height0, level) ||
+   if (width != minify(mt->logical_width0, level - mt->first_level) ||
+       height != minify(mt->logical_height0, level - mt->first_level) ||
        depth != level_depth) {
       return false;
    }
@@ -1041,8 +1041,8 @@ intel_miptree_copy_slice(struct brw_context *brw,
 
 {
    mesa_format format = src_mt->format;
-   uint32_t width = minify(src_mt->physical_width0, level);
-   uint32_t height = minify(src_mt->physical_height0, level);
+   uint32_t width = minify(src_mt->physical_width0, level - src_mt->first_level);
+   uint32_t height = minify(src_mt->physical_height0, level - src_mt->first_level);
    int slice;
 
    if (face > 0)
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 34bda9f..799da51 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -329,8 +329,8 @@ intel_setup_image_from_mipmap_tree(struct brw_context *brw, __DRIimage *image,
    intel_region_get_tile_masks(mt->region, &mask_x, &mask_y, false);
    intel_miptree_get_image_offset(mt, level, zoffset, &draw_x, &draw_y);
 
-   image->width = minify(mt->physical_width0, level);
-   image->height = minify(mt->physical_height0, level);
+   image->width = minify(mt->physical_width0, level - mt->first_level);
+   image->height = minify(mt->physical_height0, level - mt->first_level);
    image->tile_x = draw_x & mask_x;
    image->tile_y = draw_y & mask_y;