fix up xglglx.c

1 files changed, 226 insertions, 0 deletions

diff --git a/hw/xgl/xglglx.c b/hw/xgl/xglglx.c
new file mode 100644
index 000000000..f22603e90
--- /dev/null
+++ b/hw/xgl/xglglx.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright © 2005 Novell, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Novell, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior permission.
+ * Novell, Inc. makes no representations about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ * NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: David Reveman <davidr@novell.com>
+ */
+
+#include "xgl.h"
+
+#ifdef GLXEXT
+
+#include "glxserver.h"
+#include "glxscreens.h"
+#include "glxext.h"
+
+typedef struct _xglGLXFunc {
+    void (*extensionInit)     (void);
+    void (*setVisualConfigs)  (int		    nconfigs,
+			       __GLXvisualConfig    *configs,
+			       void                 **privates);
+    void (*wrapInitVisuals)   (miInitVisualsProcPtr *initVisuals);
+    int  (*initVisuals)	      (VisualPtr	    *visualp,
+			       DepthPtr		    *depthp,
+			       int		    *nvisualp,
+			       int		    *ndepthp,
+			       int		    *rootDepthp,
+			       VisualID		    *defaultVisp,
+			       unsigned long	    sizes,
+			       int		    bitsPerRGB,
+			       int		    preferredVis);
+
+    void (*flushContextCache) (void);
+    void (*setRenderTables)   (__glProcTable	    *table,
+			       __glProcTableEXT	    *tableEXT);
+} xglGLXFuncRec;
+
+static xglGLXFuncRec __glXFunc;
+
+static void *glXHandle = 0;
+static void *glCoreHandle = 0;
+
+#define SYM(ptr, name) { (void **) &(ptr), (name) }
+
+__GLXextensionInfo __glDDXExtensionInfo = {
+    GL_CORE_MESA,
+    NULL,
+    NULL,
+    NULL
+};
+
+__GLXscreenInfo __glDDXScreenInfo = {
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    0,
+    0,
+    "Vendor String",
+    "Version String",
+    "Extensions String",
+    NULL
+};
+
+void
+GlxSetVisualConfigs (int	       nconfigs,
+		     __GLXvisualConfig *configs,
+		     void              **privates)
+{
+    if (glXHandle && glCoreHandle)
+	(*__glXFunc.setVisualConfigs) (nconfigs, configs, privates);
+}
+
+void
+GlxExtensionInit (void)
+{
+    if (glXHandle && glCoreHandle)
+	(*__glXFunc.extensionInit) ();
+}
+
+void
+GlxWrapInitVisuals (miInitVisualsProcPtr *initVisuals)
+{
+    if (glXHandle && glCoreHandle)
+	(*__glXFunc.wrapInitVisuals) (initVisuals);
+}
+
+int
+GlxInitVisuals (VisualPtr     *visualp,
+		DepthPtr      *depthp,
+		int	      *nvisualp,
+		int	      *ndepthp,
+		int	      *rootDepthp,
+		VisualID      *defaultVisp,
+		unsigned long sizes,
+		int	      bitsPerRGB,
+		int	      preferredVis)
+{
+    if (glXHandle && glCoreHandle)
+	return (*__glXFunc.initVisuals) (visualp, depthp, nvisualp, ndepthp,
+					 rootDepthp, defaultVisp, sizes,
+					 bitsPerRGB, preferredVis);
+
+    return 0;
+}
+
+void
+GlxFlushContextCache (void)
+{
+    (*__glXFunc.flushContextCache) ();
+}
+
+void
+GlxSetRenderTables (__glProcTable    *table,
+		    __glProcTableEXT *tableEXT)
+{
+    (*__glXFunc.setRenderTables) (table, tableEXT);
+}
+
+Bool
+xglLoadGLXModules (void)
+{
+
+#ifdef XLOADABLE
+    if (!glXHandle)
+    {
+	xglSymbolRec sym[] = {
+	    SYM (__glXFunc.extensionInit,     "GlxExtensionInit"),
+	    SYM (__glXFunc.setVisualConfigs,  "GlxSetVisualConfigs"),
+	    SYM (__glXFunc.wrapInitVisuals,   "GlxWrapInitVisuals"),
+	    SYM (__glXFunc.initVisuals,	      "GlxInitVisuals"),
+	    SYM (__glXFunc.flushContextCache, "GlxFlushContextCache"),
+	    SYM (__glXFunc.setRenderTables,   "GlxSetRenderTables")
+	};
+
+	glXHandle = xglLoadModule ("glx");
+	if (!glXHandle)
+	    return FALSE;
+
+	if (!xglLookupSymbols (glXHandle, sym, sizeof (sym) / sizeof (sym[0])))
+	{
+	    xglUnloadModule (glXHandle);
+	    glXHandle = 0;
+
+	    return FALSE;
+	}
+    }
+
+    if (!glCoreHandle)
+    {
+	xglSymbolRec sym[] = {
+	    SYM (__glDDXScreenInfo.screenProbe,   "__MESA_screenProbe"),
+	    SYM (__glDDXScreenInfo.createContext, "__MESA_createContext"),
+	    SYM (__glDDXScreenInfo.createBuffer,  "__MESA_createBuffer"),
+
+	    SYM (__glDDXExtensionInfo.resetExtension,   "__MESA_resetExtension"),
+	    SYM (__glDDXExtensionInfo.initVisuals,      "__MESA_initVisuals"),
+	    SYM (__glDDXExtensionInfo.setVisualConfigs,
+		 "__MESA_setVisualConfigs")
+	};
+
+	glCoreHandle = xglLoadModule ("glcore");
+	if (!glCoreHandle)
+	    return FALSE;
+
+	if (!xglLookupSymbols (glCoreHandle, sym, sizeof (sym) / sizeof (sym[0])))
+	{
+	    xglUnloadModule (glCoreHandle);
+	    glCoreHandle = 0;
+
+	    return FALSE;
+	}
+
+	if (!xglLoadHashFuncs (glCoreHandle))
+	{
+	    xglUnloadModule (glCoreHandle);
+	    glCoreHandle = 0;
+	}
+    }
+
+    return TRUE;
+#else
+    return FALSE;
+#endif
+
+}
+
+void
+xglUnloadGLXModules (void)
+{
+
+#ifdef XLOADABLE
+    if (glXHandle)
+    {
+	xglUnloadModule (glXHandle);
+	glXHandle = 0;
+    }
+
+    if (glCoreHandle)
+    {
+	xglUnloadModule (glCoreHandle);
+	glCoreHandle = 0;
+    }
+#endif
+
+}
+
+#endif