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i965: Don't allocate a 1-level texture when GL_GENERATE_MIPMAP is set.

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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%.

Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
This commit is contained in:
Eric Anholt 2013-08-30 12:47:02 -07:00
parent 6ca9b532d8
commit 97bdb4c039
1 changed files with 2 additions and 1 deletions
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3
src/mesa/drivers/dri/i965/intel_tex_image.c
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@ -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,