1 files changed, 139 insertions, 0 deletions
diff --git a/xc/programs/Xserver/hw/dmx/dmxcb.c b/xc/programs/Xserver/hw/dmx/dmxcb.c
new file mode 100644
index 000000000..b0def2286
--- /dev/null
+++ b/xc/programs/Xserver/hw/dmx/dmxcb.c
@@ -0,0 +1,139 @@
+/* $XFree86$ */
+/*
+ * Copyright 2001,2002 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:
+ *   Rickard E. (Rik) Faith <faith@redhat.com>
+ *
+ * This code queries and modifies the connection block.
+ */
+
+#include "dmxcb.h"
+#include "dmx.h"
+#include "dmxlog.h"
+#include "globals.h"
+
+extern char    *ConnectionInfo;
+extern int     connBlockScreenStart;
+extern int     PanoramiXPixWidth;
+extern int     PanoramiXPixHeight;
+extern int     PanoramiXNumScreens;
+
+       int     dmxGlobalWidth, dmxGlobalHeight;
+
+/* We may want the wall dimensions to be different from the bounding box
+ * dimensions that Xinerama computes, so save those and update them
+ * here.
+ */
+void dmxSetWidthHeight(int width, int height)
+{
+    dmxGlobalWidth  = width;
+    dmxGlobalHeight = height;
+}
+
+void dmxComputeWidthHeight(void)
+{
+    int           i;
+    DMXScreenInfo *dmxScreen;
+    int           w = 0;
+    int           h = 0;
+    
+    for (i = 0; i < dmxNumScreens; i++) {
+        dmxScreen = &dmxScreens[i];
+        if (w < dmxScreen->width + dmxScreen->originX)
+            w = dmxScreen->width + dmxScreen->originX;
+        if (h < dmxScreen->height + dmxScreen->originY)
+            h = dmxScreen->height + dmxScreen->originY;
+    }
+    if (!dmxGlobalWidth && !dmxGlobalHeight) {
+        dmxLog(dmxInfo, "Using %dx%d as global bounding box\n", w, h);
+    } else {
+        dmxLog(dmxInfo,
+               "Using %dx%d as global bounding box, instead of %dx%d\n",
+               w, h, dmxGlobalWidth, dmxGlobalHeight);
+    }
+        
+    if (!dmxGlobalWidth)  dmxGlobalWidth  = w;
+    if (!dmxGlobalHeight) dmxGlobalHeight = h;
+}
+
+void dmxConnectionBlockCallback(void)
+{
+    xWindowRoot *root   = (xWindowRoot *)(ConnectionInfo+connBlockScreenStart);
+    int         offset  = connBlockScreenStart + sizeof(xWindowRoot);
+    int         i;
+
+    if(!noPanoramiXExtension) {
+        if (dmxGlobalWidth && dmxGlobalHeight
+            && dmxGlobalWidth != PanoramiXPixWidth
+            && dmxGlobalHeight != PanoramiXPixHeight) {
+            dmxLog(dmxInfo,
+                   "Changing Xinerama screen dimensions from %d %d to %d %d\n",
+                   PanoramiXPixWidth, PanoramiXPixHeight,
+                   dmxGlobalWidth, dmxGlobalHeight);
+            PanoramiXPixWidth  = root->pixWidth  = dmxGlobalWidth;
+            PanoramiXPixHeight = root->pixHeight = dmxGlobalHeight;
+        } else {
+            dmxGlobalWidth  = PanoramiXPixWidth;
+            dmxGlobalHeight = PanoramiXPixHeight;
+        }
+        dmxLog(dmxInfo, "%d screens configured with Xinerama (%d %d)\n",
+               PanoramiXNumScreens, PanoramiXPixWidth, PanoramiXPixHeight);
+    } else {
+                                /* This never happens because we're
+                                 * called from a Xinerama callback. */
+        dmxLog(dmxInfo, "%d screens configured (%d %d)\n",
+               screenInfo.numScreens, root->pixWidth, root->pixHeight);
+    }
+    
+    for (i = 0; i < root->nDepths; i++) {
+        xDepth      *depth  = (xDepth *)(ConnectionInfo + offset);
+        int         voffset = offset + sizeof(xDepth);
+        xVisualType *visual = (xVisualType *)(ConnectionInfo + voffset);
+        int         j;
+        
+        dmxLog(dmxInfo, "%d visuals at depth %d\n",
+               depth->nVisuals, depth->depth);
+        for (j = 0; j < depth->nVisuals; j++, visual++) {
+            XVisualInfo vi;
+            
+            vi.visual        = NULL;
+            vi.visualid      = visual->visualID;
+            vi.screen        = 0;
+            vi.depth         = depth->depth;
+            vi.class         = visual->class;
+            vi.red_mask      = visual->redMask;
+            vi.green_mask    = visual->greenMask;
+            vi.blue_mask     = visual->blueMask;
+            vi.colormap_size = visual->colormapEntries;
+            vi.bits_per_rgb  = visual->bitsPerRGB;
+            dmxLogVisual(NULL, &vi, 0);
+        }
+        offset = voffset + depth->nVisuals * sizeof(xVisualType);
+    }
+}