Importing xserver from X.Org 7.2RC2

1 files changed, 456 insertions, 0 deletions

diff --git a/xserver/hw/xnest/Screen.c b/xserver/hw/xnest/Screen.c
new file mode 100644
index 000000000..8e86efbdb
--- /dev/null
+++ b/xserver/hw/xnest/Screen.c
@@ -0,0 +1,456 @@
+/*
+
+Copyright 1993 by Davor Matic
+
+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.  Davor Matic makes no representations about
+the suitability of this software for any purpose.  It is provided "as
+is" without express or implied warranty.
+
+*/
+
+#ifdef HAVE_XNEST_CONFIG_H
+#include <xnest-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "dix.h"
+#include "mi.h"
+#include "mibstore.h"
+#include "micmap.h"
+#include "colormapst.h"
+#include "resource.h"
+
+#include "Xnest.h"
+
+#include "Display.h"
+#include "Screen.h"
+#include "XNGC.h"
+#include "GCOps.h"
+#include "Drawable.h"
+#include "XNFont.h"
+#include "Color.h"
+#include "XNCursor.h"
+#include "Visual.h"
+#include "Events.h"
+#include "Init.h"
+#include "mipointer.h"
+#include "Args.h"
+
+Window xnestDefaultWindows[MAXSCREENS];
+Window xnestScreenSaverWindows[MAXSCREENS];
+
+#ifdef GLXEXT
+extern void GlxWrapInitVisuals(miInitVisualsProcPtr *);
+#endif
+
+#ifdef PIXPRIV
+int xnestScreenGeneration = -1;
+#endif
+
+ScreenPtr
+xnestScreen(Window window)
+{
+  int i;
+  
+  for (i = 0; i < xnestNumScreens; i++)
+    if (xnestDefaultWindows[i] == window) 
+      return screenInfo.screens[i];
+
+  return NULL;
+}
+
+static int
+offset(unsigned long mask)
+{
+  int count;
+  
+  for (count = 0; !(mask & 1) && count < 32; count++)
+    mask >>= 1;
+  
+  return count;
+}
+
+static Bool
+xnestSaveScreen(ScreenPtr pScreen, int what)
+{
+  if (xnestSoftwareScreenSaver)
+    return False;
+  else {
+    switch (what) {
+    case SCREEN_SAVER_ON:
+      XMapRaised(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetScreenSaverColormapWindow(pScreen);
+      break;
+      
+    case SCREEN_SAVER_OFF:
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+      
+    case SCREEN_SAVER_FORCER:
+      lastEventTime = GetTimeInMillis();
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+      
+    case SCREEN_SAVER_CYCLE:
+      XUnmapWindow(xnestDisplay, xnestScreenSaverWindows[pScreen->myNum]);
+      xnestSetInstalledColormapWindows(pScreen);
+      break;
+    }
+    return True;
+  }
+}
+
+static Bool
+xnestCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
+{
+    return FALSE;
+}
+
+static void
+xnestCrossScreen(ScreenPtr pScreen, Bool entering)
+{
+}
+
+static miPointerScreenFuncRec xnestPointerCursorFuncs =
+{
+    xnestCursorOffScreen,
+    xnestCrossScreen,
+    miPointerWarpCursor
+};
+
+static miPointerSpriteFuncRec xnestPointerSpriteFuncs = 
+{
+    xnestRealizeCursor,
+    xnestUnrealizeCursor,
+    xnestSetCursor,
+    xnestMoveCursor,
+};
+
+Bool
+xnestOpenScreen(int index, ScreenPtr pScreen, int argc, char *argv[])
+{
+  VisualPtr visuals;
+  DepthPtr depths;
+  int numVisuals, numDepths;
+  int i, j, depthIndex;
+  unsigned long valuemask;
+  XSetWindowAttributes attributes;
+  XWindowAttributes gattributes;
+  XSizeHints sizeHints;
+  VisualID defaultVisual;
+  int rootDepth;
+
+  if (!(AllocateWindowPrivate(pScreen, xnestWindowPrivateIndex,
+			    sizeof(xnestPrivWin))  &&
+	  AllocateGCPrivate(pScreen, xnestGCPrivateIndex, 
+			    sizeof(xnestPrivGC)))) 
+    return False;
+
+#ifdef PIXPRIV
+  if (xnestScreenGeneration != serverGeneration) {
+      if ((xnestPixmapPrivateIndex = AllocatePixmapPrivateIndex()) < 0)
+	  return False;
+      xnestScreenGeneration = serverGeneration;
+  }
+  
+  if (!AllocatePixmapPrivate(pScreen,xnestPixmapPrivateIndex,
+			     sizeof (xnestPrivPixmap)))
+      return False;
+#endif
+  visuals = (VisualPtr)xalloc(xnestNumVisuals * sizeof(VisualRec));
+  numVisuals = 0;
+
+  depths = (DepthPtr)xalloc(MAXDEPTH * sizeof(DepthRec));
+  depths[0].depth = 1;
+  depths[0].numVids = 0;
+  depths[0].vids = (VisualID *)xalloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
+  numDepths = 1;
+
+  for (i = 0; i < xnestNumVisuals; i++) {
+    visuals[numVisuals].class = xnestVisuals[i].class;
+    visuals[numVisuals].bitsPerRGBValue = xnestVisuals[i].bits_per_rgb;
+    visuals[numVisuals].ColormapEntries = xnestVisuals[i].colormap_size;
+    visuals[numVisuals].nplanes = xnestVisuals[i].depth;
+    visuals[numVisuals].redMask = xnestVisuals[i].red_mask;
+    visuals[numVisuals].greenMask = xnestVisuals[i].green_mask;
+    visuals[numVisuals].blueMask = xnestVisuals[i].blue_mask;
+    visuals[numVisuals].offsetRed = offset(xnestVisuals[i].red_mask);
+    visuals[numVisuals].offsetGreen = offset(xnestVisuals[i].green_mask);
+    visuals[numVisuals].offsetBlue = offset(xnestVisuals[i].blue_mask);
+
+    /* Check for and remove duplicates. */
+    for (j = 0; j < numVisuals; j++) {
+      if (visuals[numVisuals].class           == visuals[j].class           &&
+	  visuals[numVisuals].bitsPerRGBValue == visuals[j].bitsPerRGBValue &&
+	  visuals[numVisuals].ColormapEntries == visuals[j].ColormapEntries &&
+	  visuals[numVisuals].nplanes         == visuals[j].nplanes         &&
+	  visuals[numVisuals].redMask         == visuals[j].redMask         &&
+	  visuals[numVisuals].greenMask       == visuals[j].greenMask       &&
+	  visuals[numVisuals].blueMask        == visuals[j].blueMask        &&
+	  visuals[numVisuals].offsetRed       == visuals[j].offsetRed       &&
+	  visuals[numVisuals].offsetGreen     == visuals[j].offsetGreen     &&
+	  visuals[numVisuals].offsetBlue      == visuals[j].offsetBlue)
+	break;
+    }
+    if (j < numVisuals)
+      break;
+
+    visuals[numVisuals].vid = FakeClientID(0);
+
+    depthIndex = UNDEFINED;
+    for (j = 0; j < numDepths; j++)
+      if (depths[j].depth == xnestVisuals[i].depth) {
+	depthIndex = j;
+	break;
+      }
+    
+    if (depthIndex == UNDEFINED) {
+      depthIndex = numDepths;
+      depths[depthIndex].depth = xnestVisuals[i].depth;
+      depths[depthIndex].numVids = 0;
+      depths[depthIndex].vids = 
+	(VisualID *)xalloc(MAXVISUALSPERDEPTH * sizeof(VisualID));
+      numDepths++;
+    }
+    if (depths[depthIndex].numVids >= MAXVISUALSPERDEPTH) {
+	FatalError("Visual table overflow");
+    }
+    depths[depthIndex].vids[depths[depthIndex].numVids] = 
+      visuals[numVisuals].vid;
+    depths[depthIndex].numVids++;
+    
+    numVisuals++;
+  }
+  visuals = (VisualPtr)xrealloc(visuals, numVisuals * sizeof(VisualRec));
+
+  defaultVisual = visuals[xnestDefaultVisualIndex].vid;
+  rootDepth = visuals[xnestDefaultVisualIndex].nplanes;
+
+#ifdef GLXEXT
+  {
+    miInitVisualsProcPtr proc = NULL;
+
+    GlxWrapInitVisuals(&proc);
+    /* GlxInitVisuals ignores the last three arguments. */
+    proc(&visuals, &depths, &numVisuals, &numDepths,
+	 &rootDepth, &defaultVisual, 0, 0, 0);
+  }
+#endif
+
+  if (xnestParentWindow != 0) {
+    XGetWindowAttributes(xnestDisplay, xnestParentWindow, &gattributes);
+    xnestWidth = gattributes.width;
+    xnestHeight = gattributes.height;
+  }
+
+  /* myNum */
+  /* id */
+  miScreenInit(pScreen, NULL, xnestWidth, xnestHeight, 1, 1, xnestWidth,
+	       rootDepth,
+	       numDepths, depths,
+	       defaultVisual, /* root visual */
+	       numVisuals, visuals);
+
+/*  miInitializeBackingStore(pScreen); */
+
+  pScreen->defColormap = (Colormap) FakeClientID(0);
+  pScreen->minInstalledCmaps = MINCMAPS;
+  pScreen->maxInstalledCmaps = MAXCMAPS;
+  pScreen->backingStoreSupport = NotUseful;
+  pScreen->saveUnderSupport = NotUseful;
+  pScreen->whitePixel = xnestWhitePixel;
+  pScreen->blackPixel = xnestBlackPixel;
+  /* rgf */
+  /* GCperDepth */
+  /* PixmapPerDepth */
+  pScreen->devPrivate = NULL;
+  /* WindowPrivateLen */
+  /* WindowPrivateSizes */
+  /* totalWindowSize */
+  /* GCPrivateLen */
+  /* GCPrivateSizes */
+  /* totalGCSize */
+
+  /* Random screen procedures */
+
+  pScreen->QueryBestSize = xnestQueryBestSize;
+  pScreen->SaveScreen = xnestSaveScreen;
+  pScreen->GetImage = xnestGetImage;
+  pScreen->GetSpans = xnestGetSpans;
+  pScreen->PointerNonInterestBox = NULL;
+  pScreen->SourceValidate = NULL;
+
+  /* Window Procedures */
+  
+  pScreen->CreateWindow = xnestCreateWindow;
+  pScreen->DestroyWindow = xnestDestroyWindow;
+  pScreen->PositionWindow = xnestPositionWindow;
+  pScreen->ChangeWindowAttributes = xnestChangeWindowAttributes;
+  pScreen->RealizeWindow = xnestRealizeWindow;
+  pScreen->UnrealizeWindow = xnestUnrealizeWindow;
+  pScreen->PostValidateTree = NULL;
+  pScreen->WindowExposures = xnestWindowExposures;
+  pScreen->PaintWindowBackground = xnestPaintWindowBackground;
+  pScreen->PaintWindowBorder = xnestPaintWindowBorder;
+  pScreen->CopyWindow = xnestCopyWindow;
+  pScreen->ClipNotify = xnestClipNotify;
+
+  /* Pixmap procedures */
+
+  pScreen->CreatePixmap = xnestCreatePixmap;
+  pScreen->DestroyPixmap = xnestDestroyPixmap;
+
+  /* Backing store procedures */
+  
+  pScreen->SaveDoomedAreas = NULL;
+  pScreen->RestoreAreas = NULL;
+  pScreen->ExposeCopy = NULL;
+  pScreen->TranslateBackingStore = NULL;
+  pScreen->ClearBackingStore = NULL;
+  pScreen->DrawGuarantee = NULL;
+
+  /* Font procedures */
+
+  pScreen->RealizeFont = xnestRealizeFont;
+  pScreen->UnrealizeFont = xnestUnrealizeFont;
+
+  /* GC procedures */
+  
+  pScreen->CreateGC = xnestCreateGC;
+
+  /* Colormap procedures */
+
+  pScreen->CreateColormap = xnestCreateColormap;
+  pScreen->DestroyColormap = xnestDestroyColormap;
+  pScreen->InstallColormap = xnestInstallColormap;
+  pScreen->UninstallColormap = xnestUninstallColormap;
+  pScreen->ListInstalledColormaps = xnestListInstalledColormaps;
+  pScreen->StoreColors = xnestStoreColors;
+  pScreen->ResolveColor = xnestResolveColor;
+
+   pScreen->BitmapToRegion = xnestPixmapToRegion;
+
+  /* OS layer procedures */
+
+  pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
+  pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
+  pScreen->blockData = NULL;
+  pScreen->wakeupData = NULL;
+
+  miPointerInitialize (pScreen, &xnestPointerSpriteFuncs, 
+		       &xnestPointerCursorFuncs, True);
+
+  pScreen->mmWidth = xnestWidth * DisplayWidthMM(xnestDisplay, 
+		       DefaultScreen(xnestDisplay)) / 
+			 DisplayWidth(xnestDisplay, 
+			   DefaultScreen(xnestDisplay));
+  pScreen->mmHeight = xnestHeight * DisplayHeightMM(xnestDisplay, 
+		        DefaultScreen(xnestDisplay)) /
+			  DisplayHeight(xnestDisplay, 
+			    DefaultScreen(xnestDisplay));
+
+  /* overwrite miCloseScreen with our own */
+  pScreen->CloseScreen = xnestCloseScreen;
+
+  if (!miScreenDevPrivateInit(pScreen, xnestWidth, NULL))
+      return FALSE;
+
+#ifdef SHAPE
+  /* overwrite miSetShape with our own */
+  pScreen->SetShape = xnestSetShape;
+#endif /* SHAPE */
+
+  /* devPrivates */
+
+#define POSITION_OFFSET (pScreen->myNum * (xnestWidth + xnestHeight) / 32)
+    
+  if (xnestDoFullGeneration) {
+
+    valuemask = CWBackPixel | CWEventMask | CWColormap;
+    attributes.background_pixel = xnestWhitePixel;
+    attributes.event_mask = xnestEventMask;
+    attributes.colormap = xnestDefaultVisualColormap(xnestDefaultVisual(pScreen));
+    
+    if (xnestParentWindow != 0) {
+      xnestDefaultWindows[pScreen->myNum] = xnestParentWindow;
+      XSelectInput (xnestDisplay, xnestDefaultWindows[pScreen->myNum],
+		    xnestEventMask);
+    } else
+      xnestDefaultWindows[pScreen->myNum] = 
+	XCreateWindow(xnestDisplay, 
+		      DefaultRootWindow(xnestDisplay),
+		      xnestX + POSITION_OFFSET,
+		      xnestY + POSITION_OFFSET,
+		      xnestWidth, xnestHeight,
+		      xnestBorderWidth,
+		      pScreen->rootDepth,
+		      InputOutput,
+		      xnestDefaultVisual(pScreen),
+		      valuemask, &attributes);
+
+    if (!xnestWindowName)
+      xnestWindowName = argv[0];
+    
+    sizeHints.flags = PPosition | PSize | PMaxSize;
+    sizeHints.x = xnestX + POSITION_OFFSET;
+    sizeHints.y = xnestY + POSITION_OFFSET;
+    sizeHints.width = sizeHints.max_width = xnestWidth;
+    sizeHints.height = sizeHints.max_height = xnestHeight;
+    if (xnestUserGeometry & XValue || xnestUserGeometry & YValue)
+      sizeHints.flags |= USPosition;
+    if (xnestUserGeometry & WidthValue || xnestUserGeometry & HeightValue)
+      sizeHints.flags |= USSize;
+    XSetStandardProperties(xnestDisplay, 
+			   xnestDefaultWindows[pScreen->myNum], 
+			   xnestWindowName, 
+			   xnestWindowName, 
+			   xnestIconBitmap,
+			   argv, argc, &sizeHints);
+    
+    XMapWindow(xnestDisplay, xnestDefaultWindows[pScreen->myNum]);
+
+    valuemask = CWBackPixmap | CWColormap;
+    attributes.background_pixmap = xnestScreenSaverPixmap;
+    attributes.colormap = 
+      DefaultColormap(xnestDisplay, DefaultScreen(xnestDisplay));
+    xnestScreenSaverWindows[pScreen->myNum] =
+      XCreateWindow(xnestDisplay, 
+		    xnestDefaultWindows[pScreen->myNum],
+		    0, 0, xnestWidth, xnestHeight, 0,
+		    DefaultDepth(xnestDisplay, DefaultScreen(xnestDisplay)),
+		    InputOutput, 
+		    DefaultVisual(xnestDisplay, DefaultScreen(xnestDisplay)),
+		    valuemask, &attributes);
+  }
+  
+  if (!xnestCreateDefaultColormap(pScreen)) return False;
+  
+  return True;
+}
+
+Bool
+xnestCloseScreen(int index, ScreenPtr pScreen)
+{
+  int i;
+  
+  for (i = 0; i < pScreen->numDepths; i++)
+    xfree(pScreen->allowedDepths[i].vids);
+  xfree(pScreen->allowedDepths);
+  xfree(pScreen->visuals);
+  xfree(pScreen->devPrivate);
+
+  /*
+    If xnestDoFullGeneration all x resources will be destroyed upon closing
+    the display connection.  There is no need to generate extra protocol.
+    */
+
+  return True;
+}