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i965: Make a helper function intel_miptree_can_use_tr_mode()

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Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
This commit is contained in:
Anuj Phogat 2015-06-05 10:56:40 -07:00
parent 385cd3e0be
commit a1afd59662
1 changed files with 19 additions and 11 deletions
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30
src/mesa/drivers/dri/i965/brw_tex_layout.c
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@ -815,6 +815,23 @@ intel_miptree_release_levels(struct intel_mipmap_tree *mt)
}
}
static bool
intel_miptree_can_use_tr_mode(const struct intel_mipmap_tree *mt)
{
if (mt->tiling == I915_TILING_Y ||
mt->tiling == (I915_TILING_Y | I915_TILING_X) ||
mt->tr_mode == INTEL_MIPTREE_TRMODE_NONE) {
/* FIXME: Don't allow YS tiling at the moment. Using 64KB tiling
* for small textures might result in to memory wastage. Revisit
* this condition when we have more information about the specific
* cases where using YS over YF will be useful.
*/
if (mt->tr_mode != INTEL_MIPTREE_TRMODE_YS)
return true;
}
return false;
}
void
brw_miptree_layout(struct brw_context *brw,
struct intel_mipmap_tree *mt,
@ -882,17 +899,8 @@ brw_miptree_layout(struct brw_context *brw,
mt->tiling = brw_miptree_choose_tiling(brw, requested, mt);
if (is_tr_mode_yf_ys_allowed) {
if (mt->tiling == I915_TILING_Y ||
mt->tiling == (I915_TILING_Y | I915_TILING_X) ||
mt->tr_mode == INTEL_MIPTREE_TRMODE_NONE) {
/* FIXME: Don't allow YS tiling at the moment. Using 64KB tiling
* for small textures might result in to memory wastage. Revisit
* this condition when we have more information about the specific
* cases where using YS over YF will be useful.
*/
if (mt->tr_mode != INTEL_MIPTREE_TRMODE_YS)
break;
}
if (intel_miptree_can_use_tr_mode(mt))
break;
/* Failed to use selected tr_mode. Free up the memory allocated
* for miptree levels in intel_miptree_total_width_height().
*/