1 files changed, 141 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/dmx/dmxvisual.c b/nx-X11/programs/Xserver/hw/dmx/dmxvisual.c
new file mode 100644
index 000000000..23ff0acfa
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/dmx/dmxvisual.c
@@ -0,0 +1,141 @@
+/* $XFree86$ */
+/*
+ * Copyright 2002-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * 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"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * Authors:
+ *   Kevin E. Martin <kem@redhat.com>
+ *
+ */
+
+/** \file
+ * This file provides support for visuals. */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "dmxvisual.h"
+
+#include "scrnintstr.h"
+
+#ifdef GLXEXT
+
+#include <GL/glxint.h>
+
+extern VisualID glxMatchVisualInConfigList(ScreenPtr pScreen,
+					   VisualPtr pVisual,
+					   __GLXvisualConfig *configs,
+					   int nconfigs);
+
+static Visual *dmxLookupGLXVisual(ScreenPtr pScreen, VisualPtr pVisual)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    int            j;
+    VisualID       vid;
+
+    vid = glxMatchVisualInConfigList(pScreen, pVisual,
+				     dmxScreen->glxVisuals,
+				     dmxScreen->numGlxVisuals);
+    if (vid) {
+	/* Find the X visual of the matching GLX visual */
+	for (j = 0; j < dmxScreen->beNumVisuals; j++)
+	    if (vid == dmxScreen->beVisuals[j].visualid)
+		return dmxScreen->beVisuals[j].visual;
+    }
+
+    /* No matching visual found */
+    return NULL;
+}
+#endif
+
+/** Return the visual that matched \a pVisual. */
+Visual *dmxLookupVisual(ScreenPtr pScreen, VisualPtr pVisual)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    int            i;
+#ifdef GLXEXT
+    Visual        *retval;
+#endif
+
+    if (!dmxScreen->beDisplay)
+	return NULL;
+
+#ifdef GLXEXT
+    if ((retval = dmxLookupGLXVisual(pScreen, pVisual)))
+	return retval;
+#endif
+
+    for (i = 0; i < dmxScreen->beNumVisuals; i++) {
+	if (pVisual->class == dmxScreen->beVisuals[i].class &&
+	    pVisual->bitsPerRGBValue == dmxScreen->beVisuals[i].bits_per_rgb &&
+	    pVisual->ColormapEntries == dmxScreen->beVisuals[i].colormap_size &&
+	    pVisual->nplanes == dmxScreen->beVisuals[i].depth &&
+	    pVisual->redMask == dmxScreen->beVisuals[i].red_mask &&
+	    pVisual->greenMask == dmxScreen->beVisuals[i].green_mask &&
+	    pVisual->blueMask == dmxScreen->beVisuals[i].blue_mask) {
+	    return dmxScreen->beVisuals[i].visual;
+	}
+    }
+
+    return NULL;
+}
+
+/** Return the visual that matched the \a vid. */
+Visual *dmxLookupVisualFromID(ScreenPtr pScreen, VisualID vid)
+{
+    Visual *visual;
+    int     i;
+
+    if (!dmxScreens[pScreen->myNum].beDisplay)
+	return NULL;
+
+    for (i = 0; i < pScreen->numVisuals; i++) {
+	if (pScreen->visuals[i].vid == vid) {
+	    visual = dmxLookupVisual(pScreen, &pScreen->visuals[i]);
+	    if (visual) return visual;
+	}
+    }
+
+    return NULL;
+}
+
+/** Return the colormap for the \a visual. */
+Colormap dmxColormapFromDefaultVisual(ScreenPtr pScreen, Visual *visual)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    int            i;
+
+    if (dmxScreen->beDisplay) {
+	for (i = 0; i < dmxScreen->beNumDefColormaps; i++)
+	    if (visual == dmxScreen->beVisuals[i].visual)
+		return dmxScreen->beDefColormaps[i];
+    }
+
+    return None;
+}