From 6aa5668871e7f366b33e85fabc72885fc269a7d4 Mon Sep 17 00:00:00 2001
From: George Sapountzis <gsap7@yahoo.gr>
Date: Fri, 20 Apr 2007 17:51:55 +0300
Subject: xmesa: spilt FX code to separate functions.

---
 src/mesa/drivers/x11/fakeglx.c | 18 ++++++++++++++----
 src/mesa/drivers/x11/xm_api.c  | 36 ++++++++++++++++--------------------
 src/mesa/drivers/x11/xmesaP.h  |  7 ++++---
 3 files changed, 34 insertions(+), 27 deletions(-)

diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index eecd52aa32..86a4deabc6 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -1440,11 +1440,14 @@ Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
       }
       if (!drawBuffer) {
          /* drawable must be a new window! */
-         drawBuffer = XMesaCreateWindowBuffer2( xmctx->xm_visual, draw, xmctx);
+         drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw );
          if (!drawBuffer) {
             /* Out of memory, or context/drawable depth mismatch */
             return False;
          }
+#ifdef FX
+         FXcreateContext( xmctx->xm_visual, draw, xmctx, drawBuffer );
+#endif
       }
 
       /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
@@ -1457,12 +1460,14 @@ Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
       }
       if (!readBuffer) {
          /* drawable must be a new window! */
-         readBuffer = XMesaCreateWindowBuffer2(glxCtx->xmesaContext->xm_visual,
-                                               read, xmctx);
+         readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read );
          if (!readBuffer) {
             /* Out of memory, or context/drawable depth mismatch */
             return False;
          }
+#ifdef FX
+         FXcreateContext( xmctx->xm_visual, read, xmctx, readBuffer );
+#endif
       }
 
       MakeCurrent_PrevContext = ctx;
@@ -2107,10 +2112,15 @@ Fake_glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
    if (!xmvis)
       return 0;
 
-   xmbuf = XMesaCreateWindowBuffer2(xmvis, win, NULL);
+   xmbuf = XMesaCreateWindowBuffer(xmvis, win);
    if (!xmbuf)
       return 0;
 
+#ifdef FX
+   /* XXX this will segfault if actually called */
+   FXcreateContext(xmvis, win, NULL, xmbuf);
+#endif
+
    (void) dpy;
    (void) attribList;  /* Ignored in GLX 1.3 */
 
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 6439d13fa5..3e65ebd99b 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -1578,17 +1578,13 @@ void XMesaDestroyContext( XMesaContext c )
  * X window or pixmap.
  * \param v  the window's XMesaVisual
  * \param w  the window we're wrapping
- * \param c  context used to initialize the buffer if 3Dfx mode in use.
  * \return  new XMesaBuffer or NULL if error
  */
-XMesaBuffer
-XMesaCreateWindowBuffer2(XMesaVisual v, XMesaWindow w, XMesaContext c)
+PUBLIC XMesaBuffer
+XMesaCreateWindowBuffer(XMesaVisual v, XMesaWindow w)
 {
 #ifndef XFree86Server
    XWindowAttributes attr;
-#endif
-#ifdef FX
-   char *fxEnvVar;
 #endif
    int client = 0;
    XMesaBuffer b;
@@ -1596,7 +1592,6 @@ XMesaCreateWindowBuffer2(XMesaVisual v, XMesaWindow w, XMesaContext c)
 
    assert(v);
    assert(w);
-   (void) c;
 
    /* Check that window depth matches visual depth */
 #ifdef XFree86Server
@@ -1642,8 +1637,14 @@ XMesaCreateWindowBuffer2(XMesaVisual v, XMesaWindow w, XMesaContext c)
       return NULL;
    }
 
+   return b;
+}
+
 #ifdef FX
-   fxEnvVar = _mesa_getenv("MESA_GLX_FX");
+void
+FXcreateContext(XMesaVisual v, XMesaWindow w, XMesaContext c, XMesaBuffer b)
+{
+   char *fxEnvVar = _mesa_getenv("MESA_GLX_FX");
    if (fxEnvVar) {
      if (fxEnvVar[0]!='d') {
        int attribs[100];
@@ -1719,17 +1720,8 @@ XMesaCreateWindowBuffer2(XMesaVisual v, XMesaWindow w, XMesaContext c)
       _mesa_warning(NULL, "         (check the README.3DFX file for more information).\n\n");
       _mesa_warning(NULL, "         you can disable this message with a 'export MESA_GLX_FX=disable'.\n");
    }
-#endif
-
-   return b;
-}
-
-
-PUBLIC XMesaBuffer
-XMesaCreateWindowBuffer(XMesaVisual v, XMesaWindow w)
-{
-   return XMesaCreateWindowBuffer2( v, w, NULL );
 }
+#endif
 
 
 /**
@@ -2004,9 +1996,9 @@ GLboolean XMesaCopyContext( XMesaContext xm_src, XMesaContext xm_dst, GLuint mas
 /*
  * Switch 3Dfx support hack between window and full-screen mode.
  */
+#ifdef FX
 GLboolean XMesaSetFXmode( GLint mode )
 {
-#ifdef FX
    const char *fx = _mesa_getenv("MESA_GLX_FX");
    if (fx && fx[0] != 'd') {
       GET_CURRENT_CONTEXT(ctx);
@@ -2043,11 +2035,15 @@ GLboolean XMesaSetFXmode( GLint mode )
       }
    }
    /*fprintf(stderr, "fallthrough\n");*/
+   return GL_FALSE;
+}
 #else
+GLboolean XMesaSetFXmode( GLint mode )
+{
    (void) mode;
-#endif
    return GL_FALSE;
 }
+#endif
 
 
 
diff --git a/src/mesa/drivers/x11/xmesaP.h b/src/mesa/drivers/x11/xmesaP.h
index 98d03ccf62..170fc678eb 100644
--- a/src/mesa/drivers/x11/xmesaP.h
+++ b/src/mesa/drivers/x11/xmesaP.h
@@ -569,9 +569,10 @@ extern void xmesa_register_swrast_functions( GLcontext *ctx );
 
 
 /* XXX this is a hack to implement shared display lists with 3Dfx */
-extern XMesaBuffer XMesaCreateWindowBuffer2( XMesaVisual v,
-					     XMesaWindow w,
-					     XMesaContext c );
+extern void FXcreateContext( XMesaVisual v,
+                             XMesaWindow w,
+                             XMesaContext c,
+                             XMesaBuffer b );
 
 
 #define ENABLE_EXT_texure_compression_s3tc 0 /* SW texture compression */
-- 
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