Mesa (master): swrast: fix choose_depth_texture_level() to respect mipmap filtering state
Brian Paul
brianp at kemper.freedesktop.org
Tue Oct 5 02:00:07 UTC 2010
Module: Mesa
Branch: master
Commit: fb5e6f88fc426e53af26e98d1c336222a8952cc5
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fb5e6f88fc426e53af26e98d1c336222a8952cc5
Author: Brian Paul <brianp at vmware.com>
Date: Mon Oct 4 19:59:23 2010 -0600
swrast: fix choose_depth_texture_level() to respect mipmap filtering state
NOTE: this is a candidate for the 7.9 branch.
---
src/mesa/swrast/s_texfilter.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c
index de694c3..e5ffe8f 100644
--- a/src/mesa/swrast/s_texfilter.c
+++ b/src/mesa/swrast/s_texfilter.c
@@ -2975,11 +2975,16 @@ choose_depth_texture_level(const struct gl_texture_object *tObj, GLfloat lambda)
{
GLint level;
- lambda = CLAMP(lambda, tObj->MinLod, tObj->MaxLod);
-
- level = (GLint) lambda;
-
- level = CLAMP(level, tObj->BaseLevel, tObj->_MaxLevel);
+ if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) {
+ /* no mipmapping - use base level */
+ level = tObj->BaseLevel;
+ }
+ else {
+ /* choose mipmap level */
+ lambda = CLAMP(lambda, tObj->MinLod, tObj->MaxLod);
+ level = (GLint) lambda;
+ level = CLAMP(level, tObj->BaseLevel, tObj->_MaxLevel);
+ }
return level;
}
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