From: Daniel Borca <dborca@users.sourceforge.net>
Date: Fri, 16 Jan 2004 06:59:50 +0000 (+0000)
Subject: fixed refresh rate control in Glide wrapper
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=48e89df25bb3f54a719f4c11fb51254206fc71a6;p=mesa.git

fixed refresh rate control in Glide wrapper
---

diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index 33c17c144e7..54323713864 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -1115,9 +1115,11 @@ DMesaVisual DMesaCreateVisual (GLint width,
     freopen("MESA.LOG", "w", stderr);
  }
 
- if (((env = getenv("FX_GLIDE_REFRESH")) == NULL) || !atoi(env)) {
-    /* FX_GLIDE_REFRESH=0 has a special meaning for DJGPP Glide3x
-     * (switch via VESA, using default refresh) and we'll not override that.
+ if (refresh && (((env = getenv("FX_GLIDE_REFRESH")) == NULL) || !atoi(env))) {
+    /* if we are passed non-zero value for refresh, we need to override
+     * default refresh rate. However, if FX_GLIDE_REFRESH is already set
+     * to 0, we won't override it, because it has a special meaning for
+     * DJGPP Glide3x (switch via VESA, using BIOS default refresh).
      */
     char tmp[256];
     sprintf(tmp, "FX_GLIDE_REFRESH=%u", refresh);