Composite's automatic redirection is a more general mechanism than the ad-hoc BS machinery, so it's much prettier to implement the one in terms of the other. Composite now wraps ChangeWindowAttributes and activates automatic redirection for windows with backing store requested. The old backing store infrastructure is completely gutted: ABI-visible structures retain the function pointers, but they never get called, and all the open-coded conditionals throughout the DIX layer to implement BS are gone. Note that this is still not a strictly complete implementation of backing store, since Composite will throw the bits away on unmap and therefore WhenMapped and Always hints are equivalent.
444 lines
13 KiB
C
444 lines
13 KiB
C
/*
|
|
|
|
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
|
|
|
|
static int xnestScreenGeneration = -1;
|
|
|
|
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;
|
|
|
|
if (xnestScreenGeneration != serverGeneration) {
|
|
if ((xnestPixmapPrivateIndex = AllocatePixmapPrivateIndex()) < 0)
|
|
return False;
|
|
xnestScreenGeneration = serverGeneration;
|
|
}
|
|
|
|
if (!AllocatePixmapPrivate(pScreen,xnestPixmapPrivateIndex,
|
|
sizeof (xnestPrivPixmap)))
|
|
return False;
|
|
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;
|
|
|
|
/* 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;
|
|
}
|