[Mesa-dev] [PATCH 5/9] i965: Don't allocate a 1-level texture when GL_GENERATE_MIPMAP is set.

[Eric Anholt]

Given that a teximage that calls us with this flag set will immediately
proceed to allocate the other levels, we can probably just go ahead and
allocate those levels now.

Reduces miptree copies in piglit by about .05%.
---
 src/mesa/drivers/dri/i965/intel_tex_image.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/intel_tex_image.c b/src/mesa/drivers/dri/i965/intel_tex_image.c
index fe274bf..16fed95 100644
--- a/src/mesa/drivers/dri/i965/intel_tex_image.c
+++ b/src/mesa/drivers/dri/i965/intel_tex_image.c
@@ -60,7 +60,8 @@ intel_miptree_create_for_teximage(struct brw_context *brw,
     */
    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
-       intelImage->base.Base.Level == 0) {
+       intelImage->base.Base.Level == 0 &&
+       !intelObj->base.GenerateMipmap) {
       lastLevel = 0;
    } else {
       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
-- 
1.8.4.rc3