Split RandR implementation into separate files.

RandR is getting too big to live in one file; split into one file per object
type (crtc, mode, screen), leaving the rest of the code in randr.c.

Code is slowly approaching the point where it will drop-in as a replacement
for the old 1.0 implementation.

1 files changed, 205 insertions, 0 deletions

diff --git a/randr/rrscreen.c b/randr/rrscreen.c
new file mode 100644
index 000000000..47ba12d39
--- /dev/null
+++ b/randr/rrscreen.c
@@ -0,0 +1,205 @@
+/*
+ * Copyright © 2006 Keith Packard
+ *
+ * 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 the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#include "randrstr.h"
+
+extern char	*ConnectionInfo;
+
+static int padlength[4] = {0, 3, 2, 1};
+
+/*
+ * Edit connection information block so that new clients
+ * see the current screen size on connect
+ */
+static void
+RREditConnectionInfo (ScreenPtr pScreen)
+{
+    xConnSetup	    *connSetup;
+    char	    *vendor;
+    xPixmapFormat   *formats;
+    xWindowRoot	    *root;
+    xDepth	    *depth;
+    xVisualType	    *visual;
+    int		    screen = 0;
+    int		    d;
+
+    connSetup = (xConnSetup *) ConnectionInfo;
+    vendor = (char *) connSetup + sizeof (xConnSetup);
+    formats = (xPixmapFormat *) ((char *) vendor +
+				 connSetup->nbytesVendor +
+				 padlength[connSetup->nbytesVendor & 3]);
+    root = (xWindowRoot *) ((char *) formats +
+			    sizeof (xPixmapFormat) * screenInfo.numPixmapFormats);
+    while (screen != pScreen->myNum)
+    {
+	depth = (xDepth *) ((char *) root + 
+			    sizeof (xWindowRoot));
+	for (d = 0; d < root->nDepths; d++)
+	{
+	    visual = (xVisualType *) ((char *) depth +
+				      sizeof (xDepth));
+	    depth = (xDepth *) ((char *) visual +
+				depth->nVisuals * sizeof (xVisualType));
+	}
+	root = (xWindowRoot *) ((char *) depth);
+	screen++;
+    }
+    root->pixWidth = pScreen->width;
+    root->pixHeight = pScreen->height;
+    root->mmWidth = pScreen->mmWidth;
+    root->mmHeight = pScreen->mmHeight;
+}
+
+static void
+RRSendConfigNotify (ScreenPtr pScreen)
+{
+    WindowPtr	pWin = WindowTable[pScreen->myNum];
+    xEvent	event;
+
+    event.u.u.type = ConfigureNotify;
+    event.u.configureNotify.window = pWin->drawable.id;
+    event.u.configureNotify.aboveSibling = None;
+    event.u.configureNotify.x = 0;
+    event.u.configureNotify.y = 0;
+
+    /* XXX xinerama stuff ? */
+    
+    event.u.configureNotify.width = pWin->drawable.width;
+    event.u.configureNotify.height = pWin->drawable.height;
+    event.u.configureNotify.borderWidth = wBorderWidth (pWin);
+    event.u.configureNotify.override = pWin->overrideRedirect;
+    DeliverEvents(pWin, &event, 1, NullWindow);
+}
+
+void
+RRDeliverScreenEvent (ClientPtr client, WindowPtr pWin, ScreenPtr pScreen)
+{
+    rrScrPriv (pScreen);
+    xRRScreenChangeNotifyEvent	se;
+    RRCrtcPtr	crtc = pScrPriv->numCrtcs ? pScrPriv->crtcs[0] : NULL;
+    RROutputPtr	output = pScrPriv->numOutputs ? pScrPriv->outputs[0] : NULL;
+    RRModePtr	mode = crtc ? crtc->mode : NULL;
+    WindowPtr	pRoot = WindowTable[pScreen->myNum];
+    int		i;
+    
+    se.type = RRScreenChangeNotify + RREventBase;
+    se.rotation = (CARD8) (crtc ? crtc->rotation : RR_Rotate_0);
+    se.timestamp = pScrPriv->lastSetTime.milliseconds;
+    se.sequenceNumber = client->sequence;
+    se.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
+    se.root =  pRoot->drawable.id;
+    se.window = pWin->drawable.id;
+#ifdef RENDER
+    se.subpixelOrder = PictureGetSubpixelOrder (pScreen);
+#else
+    se.subpixelOrder = SubPixelUnknown;
+#endif
+
+    se.sequenceNumber = client->sequence;
+    if (mode) 
+    {
+	se.sizeID = -1;
+	for (i = 0; i < output->numModes; i++)
+	    if (mode == output->modes[i])
+	    {
+		se.sizeID = i;
+		break;
+	    }
+	se.widthInPixels = mode->mode.width;
+	se.heightInPixels = mode->mode.height;
+	se.widthInMillimeters = mode->mode.mmWidth;
+	se.heightInMillimeters = mode->mode.mmHeight;
+    }
+    else
+    {
+	/*
+	 * This "shouldn't happen", but a broken DDX can
+	 * forget to set the current configuration on GetInfo
+	 */
+	se.sizeID = 0xffff;
+	se.widthInPixels = 0;
+	se.heightInPixels = 0;
+	se.widthInMillimeters = 0;
+	se.heightInMillimeters = 0;
+    }    
+    WriteEventsToClient (client, 1, (xEvent *) &se);
+}
+
+/*
+ * Notify the extension that the screen size has been changed.
+ * The driver is responsible for calling this whenever it has changed
+ * the size of the screen
+ */
+void
+RRScreenSizeNotify (ScreenPtr	pScreen)
+{
+    rrScrPriv(pScreen);
+    /*
+     * Deliver ConfigureNotify events when root changes
+     * pixel size
+     */
+    if (pScrPriv->width == pScreen->width &&
+	pScrPriv->height == pScreen->height)
+	return;
+    
+    pScrPriv->width = pScreen->width;
+    pScrPriv->height = pScreen->height;
+    pScrPriv->changed = TRUE;
+
+    RRSendConfigNotify (pScreen);
+    RREditConnectionInfo (pScreen);
+    
+    /*
+     * Fix pointer bounds and location
+     */
+    ScreenRestructured (pScreen);
+}
+
+/*
+ * Request that the screen be resized
+ */
+Bool
+RRScreenSizeSet (ScreenPtr  pScreen,
+		 CARD16	    width,
+		 CARD16	    height,
+		 CARD32	    mmWidth,
+		 CARD32	    mmHeight)
+{
+    rrScrPriv(pScreen);
+
+#if RANDR_12_INTERFACE
+    if (pScrPriv->rrScreenSizeSet)
+    {
+	return (*pScrPriv->rrScreenSizeSet) (pScreen,
+					     width, height,
+					     mmWidth, mmHeight);
+    }
+#endif
+#if RANDR_10_INTERFACE
+    if (pScrPriv->rrSetConfig)
+    {
+	return TRUE;	/* can't set size separately */
+    }
+#endif
+    return FALSE;
+}
+