From: Bryan Cain <bryancain3@gmail.com>
Date: Wed, 20 Jul 2011 22:35:22 +0000 (-0500)
Subject: util: enable S3TC support when the force_s3tc_enable env var is set to "true"
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=860c51d82711936d343b55aafb46befc8c032fe6;p=mesa.git

util: enable S3TC support when the force_s3tc_enable env var is set to "true"

NOTE: This is a candidate for the 7.10 and 7.11 branches.
---

diff --git a/src/gallium/auxiliary/util/u_format_s3tc.c b/src/gallium/auxiliary/util/u_format_s3tc.c
index bb989c29d81..d8a7c0d453f 100644
--- a/src/gallium/auxiliary/util/u_format_s3tc.c
+++ b/src/gallium/auxiliary/util/u_format_s3tc.c
@@ -119,8 +119,15 @@ util_format_s3tc_init(void)
 
    library = util_dl_open(DXTN_LIBNAME);
    if (!library) {
-      debug_printf("couldn't open " DXTN_LIBNAME ", software DXTn "
-         "compression/decompression unavailable\n");
+      if (getenv("force_s3tc_enable") &&
+          !strcmp(getenv("force_s3tc_enable"), "true")) {
+         debug_printf("couldn't open " DXTN_LIBNAME ", enabling DXTn due to "
+            "force_s3tc_enable=true environment variable\n");
+         util_format_s3tc_enabled = TRUE;
+      } else {
+         debug_printf("couldn't open " DXTN_LIBNAME ", software DXTn "
+            "compression/decompression unavailable\n");
+      }
       return;
    }