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authorBrian <[email protected]>2007-11-19 13:05:00 -0700
committerBrian <[email protected]>2007-11-20 08:24:46 -0700
commit827e72de7537e62cac9652f8b7344ff356de9bb1 (patch)
tree241bf6e892c4180d02062715ae27510f7e58aee1 /src/mesa/swrast/s_fragprog.c
parent3821d15e06a62231b4a946d097d1455d7b0c5834 (diff)
clamp lambda to Min/MaxLod
Diffstat (limited to 'src/mesa/swrast/s_fragprog.c')
-rw-r--r--src/mesa/swrast/s_fragprog.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index 6656ebc0d0c..474aab3aa26 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5.2
+ * Version: 7.0.3
*
- * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -41,9 +41,12 @@ fetch_texel( GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda,
{
GLchan rgba[4];
SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
+ lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);
+
/* XXX use a float-valued TextureSample routine here!!! */
- swrast->TextureSample[unit](ctx, ctx->Texture.Unit[unit]._Current,
+ swrast->TextureSample[unit](ctx, texObj,
1, (const GLfloat (*)[4]) texcoord,
&lambda, &rgba);
color[0] = CHAN_TO_FLOAT(rgba[0]);