1036 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			1036 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright (c) 1995  Jon Tombs
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|  * Copyright (c) 1995, 1996, 1999  XFree86 Inc
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|  * Copyright (c) 1999 - The XFree86 Project Inc.
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|  *
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|  * Written by Mark Vojkovich
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|  */
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| 
 | |
| 
 | |
| #ifdef HAVE_XORG_CONFIG_H
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| #include <xorg-config.h>
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| #endif
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| 
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| #include <X11/X.h>
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| #include <X11/Xproto.h>
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| #include "misc.h"
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| #include "dixstruct.h"
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| #include "dixevents.h"
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| #include "pixmapstr.h"
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| #include "extnsionst.h"
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| #include "colormapst.h"
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| #include "cursorstr.h"
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| #include "scrnintstr.h"
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| #include "servermd.h"
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| #include <X11/extensions/xf86dgaproto.h>
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| #include "swaprep.h"
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| #include "dgaproc.h"
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| #include "protocol-versions.h"
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| 
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| #include <string.h>
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| 
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| #include "modinit.h"
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| 
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| #define DGA_PROTOCOL_OLD_SUPPORT 1
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| 
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| 
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| static void XDGAResetProc(ExtensionEntry *extEntry);
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| 
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| static void DGAClientStateChange (CallbackListPtr*, pointer, pointer);
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| 
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| unsigned char DGAReqCode = 0;
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| int DGAErrorBase;
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| int DGAEventBase;
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| 
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| static DevPrivateKeyRec DGAScreenPrivateKeyRec;
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| #define DGAScreenPrivateKey (&DGAScreenPrivateKeyRec)
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| #define DGAScreenPrivateKeyRegistered (DGAScreenPrivateKeyRec.initialized)
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| static DevPrivateKeyRec DGAClientPrivateKeyRec;
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| #define DGAClientPrivateKey (&DGAClientPrivateKeyRec)
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| static int DGACallbackRefCount = 0;
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| 
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| /* This holds the client's version information */
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| typedef struct {
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|     int		major;
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|     int		minor;
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| } DGAPrivRec, *DGAPrivPtr;
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| 
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| #define DGA_GETCLIENT(idx) ((ClientPtr) \
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|     dixLookupPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey))
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| #define DGA_SETCLIENT(idx,p) \
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|     dixSetPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey, p)
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| 
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| #define DGA_GETPRIV(c) ((DGAPrivPtr) \
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|     dixLookupPrivate(&(c)->devPrivates, DGAClientPrivateKey))
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| #define DGA_SETPRIV(c,p) \
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|     dixSetPrivate(&(c)->devPrivates, DGAClientPrivateKey, p)
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| 
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| 
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| static void
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| XDGAResetProc (ExtensionEntry *extEntry)
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| {
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|    DeleteCallback (&ClientStateCallback, DGAClientStateChange, NULL);
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|    DGACallbackRefCount = 0;
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| }
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| 
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| 
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| static int
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| ProcXDGAQueryVersion(ClientPtr client)
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| {
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|     xXDGAQueryVersionReply rep;
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| 
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|     REQUEST_SIZE_MATCH(xXDGAQueryVersionReq);
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|     rep.type = X_Reply;
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|     rep.length = 0;
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|     rep.sequenceNumber = client->sequence;
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|     rep.majorVersion = SERVER_XDGA_MAJOR_VERSION;
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|     rep.minorVersion = SERVER_XDGA_MINOR_VERSION;
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| 
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|     WriteToClient(client, sizeof(xXDGAQueryVersionReply), (char *)&rep);
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|     return Success;
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| }
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| 
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| 
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| static int
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| ProcXDGAOpenFramebuffer(ClientPtr client)
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| {
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|     REQUEST(xXDGAOpenFramebufferReq);
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|     xXDGAOpenFramebufferReply rep;
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|     char *deviceName;
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|     int nameSize;
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| 
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|     if (stuff->screen >= screenInfo.numScreens)
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|         return BadValue;
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| 
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|     if (!DGAAvailable(stuff->screen))
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|         return DGAErrorBase + XF86DGANoDirectVideoMode;
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| 
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|     REQUEST_SIZE_MATCH(xXDGAOpenFramebufferReq);
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|     rep.type = X_Reply;
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|     rep.length = 0;
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|     rep.sequenceNumber = client->sequence;
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| 
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|     if(!DGAOpenFramebuffer(stuff->screen, &deviceName,
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| 			(unsigned char**)(&rep.mem1),
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| 			(int*)&rep.size, (int*)&rep.offset, (int*)&rep.extra))
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|     {
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| 	return BadAlloc;
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|     }
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| 
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|     nameSize = deviceName ? (strlen(deviceName) + 1) : 0;
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|     rep.length = bytes_to_int32(nameSize);
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| 
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|     WriteToClient(client, sizeof(xXDGAOpenFramebufferReply), (char *)&rep);
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|     if(rep.length)
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| 	WriteToClient(client, nameSize, deviceName);
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| 
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|     return Success;
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| }
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| 
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| 
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| static int
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| ProcXDGACloseFramebuffer(ClientPtr client)
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| {
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|     REQUEST(xXDGACloseFramebufferReq);
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| 
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|     if (stuff->screen >= screenInfo.numScreens)
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|         return BadValue;
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| 
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|     if (!DGAAvailable(stuff->screen))
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|         return DGAErrorBase + XF86DGANoDirectVideoMode;
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| 
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|     REQUEST_SIZE_MATCH(xXDGACloseFramebufferReq);
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| 
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|     DGACloseFramebuffer(stuff->screen);
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| 
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|     return Success;
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| }
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| 
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| static int
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| ProcXDGAQueryModes(ClientPtr client)
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| {
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|     int i, num, size;
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|     REQUEST(xXDGAQueryModesReq);
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|     xXDGAQueryModesReply rep;
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|     xXDGAModeInfo info;
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|     XDGAModePtr mode;
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| 
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|     if (stuff->screen >= screenInfo.numScreens)
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|         return BadValue;
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| 
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|     REQUEST_SIZE_MATCH(xXDGAQueryModesReq);
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|     rep.type = X_Reply;
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|     rep.length = 0;
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|     rep.number = 0;
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|     rep.sequenceNumber = client->sequence;
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| 
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|     if (!DGAAvailable(stuff->screen)) {
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| 	rep.number = 0;
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| 	rep.length = 0;
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| 	WriteToClient(client, sz_xXDGAQueryModesReply, (char*)&rep);
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| 	return Success;
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|     }
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| 
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|     if(!(num = DGAGetModes(stuff->screen))) {
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| 	WriteToClient(client, sz_xXDGAQueryModesReply, (char*)&rep);
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| 	return Success;
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|     }
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| 
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|     if(!(mode = (XDGAModePtr)malloc(num * sizeof(XDGAModeRec))))
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| 	return BadAlloc;
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| 
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|     for(i = 0; i < num; i++)
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| 	DGAGetModeInfo(stuff->screen, mode + i, i + 1);
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| 
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|     size = num * sz_xXDGAModeInfo;
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|     for(i = 0; i < num; i++)
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| 	size += pad_to_int32(strlen(mode[i].name) + 1);  /* plus NULL */
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| 
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|     rep.number = num;
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|     rep.length = bytes_to_int32(size);
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| 
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|     WriteToClient(client, sz_xXDGAQueryModesReply, (char*)&rep);
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| 
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|     for(i = 0; i < num; i++) {
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| 	size = strlen(mode[i].name) + 1;
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| 
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| 	info.byte_order = mode[i].byteOrder;
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| 	info.depth = mode[i].depth;
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| 	info.num = mode[i].num;
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| 	info.bpp = mode[i].bitsPerPixel;
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| 	info.name_size = (size + 3) & ~3L;
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| 	info.vsync_num = mode[i].VSync_num;
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| 	info.vsync_den = mode[i].VSync_den;
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| 	info.flags = mode[i].flags;
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| 	info.image_width = mode[i].imageWidth;
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| 	info.image_height = mode[i].imageHeight;
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| 	info.pixmap_width = mode[i].pixmapWidth;
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| 	info.pixmap_height = mode[i].pixmapHeight;
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| 	info.bytes_per_scanline = mode[i].bytesPerScanline;
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| 	info.red_mask = mode[i].red_mask;
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| 	info.green_mask = mode[i].green_mask;
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| 	info.blue_mask = mode[i].blue_mask;
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| 	info.visual_class = mode[i].visualClass;
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| 	info.viewport_width = mode[i].viewportWidth;
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| 	info.viewport_height = mode[i].viewportHeight;
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| 	info.viewport_xstep = mode[i].xViewportStep;
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| 	info.viewport_ystep = mode[i].yViewportStep;
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|  	info.viewport_xmax = mode[i].maxViewportX;
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| 	info.viewport_ymax = mode[i].maxViewportY;
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| 	info.viewport_flags = mode[i].viewportFlags;
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| 	info.reserved1 = mode[i].reserved1;
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| 	info.reserved2 = mode[i].reserved2;
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| 
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| 	WriteToClient(client, sz_xXDGAModeInfo, (char*)(&info));
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| 	WriteToClient(client, size, mode[i].name);
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|     }
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| 
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|     free(mode);
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| 
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|     return Success;
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| }
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| 
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| 
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| static void
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| DGAClientStateChange (
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|     CallbackListPtr* pcbl,
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|     pointer nulldata,
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|     pointer calldata
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| ){
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|     NewClientInfoRec* pci = (NewClientInfoRec*) calldata;
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|     ClientPtr client = NULL;
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|     int i;
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| 
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|     for(i = 0; i < screenInfo.numScreens; i++) {
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| 	if(DGA_GETCLIENT(i) == pci->client) {
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| 	   client = pci->client;
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| 	   break;
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| 	}
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|     }
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| 
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|     if(client &&
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|       ((client->clientState == ClientStateGone) ||
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|        (client->clientState == ClientStateRetained))) {
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| 	XDGAModeRec mode;
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| 	PixmapPtr pPix;
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| 
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| 	DGA_SETCLIENT(i, NULL);
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| 	DGASelectInput(i, NULL, 0);
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| 	DGASetMode(i, 0, &mode, &pPix);
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| 
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| 	if(--DGACallbackRefCount == 0)
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| 	    DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
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|     }
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| }
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| 
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| static int
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| ProcXDGASetMode(ClientPtr client)
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| {
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|     REQUEST(xXDGASetModeReq);
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|     xXDGASetModeReply rep;
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|     XDGAModeRec mode;
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|     xXDGAModeInfo info;
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|     PixmapPtr pPix;
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|     ClientPtr owner;
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|     int size;
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| 
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|     if (stuff->screen >= screenInfo.numScreens)
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|         return BadValue;
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|     owner = DGA_GETCLIENT(stuff->screen);
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| 
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|     REQUEST_SIZE_MATCH(xXDGASetModeReq);
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|     rep.type = X_Reply;
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|     rep.length = 0;
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|     rep.offset = 0;
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|     rep.flags = 0;
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|     rep.sequenceNumber = client->sequence;
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| 
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|     if (!DGAAvailable(stuff->screen))
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|         return DGAErrorBase + XF86DGANoDirectVideoMode;
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| 
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|     if(owner && owner != client)
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|         return DGAErrorBase + XF86DGANoDirectVideoMode;
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| 
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|     if(!stuff->mode) {
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| 	if(owner) {
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| 	  if(--DGACallbackRefCount == 0)
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| 	    DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
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| 	}
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| 	DGA_SETCLIENT(stuff->screen, NULL);
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| 	DGASelectInput(stuff->screen, NULL, 0);
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| 	DGASetMode(stuff->screen, 0, &mode, &pPix);
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| 	WriteToClient(client, sz_xXDGASetModeReply, (char*)&rep);
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| 	return Success;
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|     }
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| 
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|     if(Success != DGASetMode(stuff->screen, stuff->mode, &mode, &pPix))
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| 	return BadValue;
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| 
 | |
|     if(!owner) {
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| 	if(DGACallbackRefCount++ == 0)
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| 	   AddCallback (&ClientStateCallback, DGAClientStateChange, NULL);
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|     }
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| 
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|     DGA_SETCLIENT(stuff->screen, client);
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| 
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|     if(pPix) {
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| 	if(AddResource(stuff->pid, RT_PIXMAP, (pointer)(pPix))) {
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| 	    pPix->drawable.id = (int)stuff->pid;
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| 	    rep.flags = DGA_PIXMAP_AVAILABLE;
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| 	}
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|     }
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| 
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|     size = strlen(mode.name) + 1;
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| 
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|     info.byte_order = mode.byteOrder;
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|     info.depth = mode.depth;
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|     info.num = mode.num;
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|     info.bpp = mode.bitsPerPixel;
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|     info.name_size = (size + 3) & ~3L;
 | |
|     info.vsync_num = mode.VSync_num;
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|     info.vsync_den = mode.VSync_den;
 | |
|     info.flags = mode.flags;
 | |
|     info.image_width = mode.imageWidth;
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|     info.image_height = mode.imageHeight;
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|     info.pixmap_width = mode.pixmapWidth;
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|     info.pixmap_height = mode.pixmapHeight;
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|     info.bytes_per_scanline = mode.bytesPerScanline;
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|     info.red_mask = mode.red_mask;
 | |
|     info.green_mask = mode.green_mask;
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|     info.blue_mask = mode.blue_mask;
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|     info.visual_class = mode.visualClass;
 | |
|     info.viewport_width = mode.viewportWidth;
 | |
|     info.viewport_height = mode.viewportHeight;
 | |
|     info.viewport_xstep = mode.xViewportStep;
 | |
|     info.viewport_ystep = mode.yViewportStep;
 | |
|     info.viewport_xmax = mode.maxViewportX;
 | |
|     info.viewport_ymax = mode.maxViewportY;
 | |
|     info.viewport_flags = mode.viewportFlags;
 | |
|     info.reserved1 = mode.reserved1;
 | |
|     info.reserved2 = mode.reserved2;
 | |
| 
 | |
|     rep.length = bytes_to_int32(sz_xXDGAModeInfo + info.name_size);
 | |
| 
 | |
|     WriteToClient(client, sz_xXDGASetModeReply, (char*)&rep);
 | |
|     WriteToClient(client, sz_xXDGAModeInfo, (char*)(&info));
 | |
|     WriteToClient(client, size, mode.name);
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
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| ProcXDGASetViewport(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGASetViewportReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
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|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGASetViewportReq);
 | |
| 
 | |
|     DGASetViewport(stuff->screen, stuff->x, stuff->y, stuff->flags);
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
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| ProcXDGAInstallColormap(ClientPtr client)
 | |
| {
 | |
|     ColormapPtr cmap;
 | |
|     int rc;
 | |
|     REQUEST(xXDGAInstallColormapReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGAInstallColormapReq);
 | |
| 
 | |
|     rc = dixLookupResourceByType((pointer *)&cmap, stuff->cmap, RT_COLORMAP,
 | |
| 				 client, DixInstallAccess);
 | |
|     if (rc != Success)
 | |
|         return rc;
 | |
|     DGAInstallCmap(cmap);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXDGASelectInput(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGASelectInputReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGASelectInputReq);
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) == client)
 | |
| 	DGASelectInput(stuff->screen, client, stuff->mask);
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXDGAFillRectangle(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGAFillRectangleReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGAFillRectangleReq);
 | |
| 
 | |
|     if(Success != DGAFillRect(stuff->screen, stuff->x, stuff->y,
 | |
| 			stuff->width, stuff->height, stuff->color))
 | |
| 	return BadMatch;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXDGACopyArea(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGACopyAreaReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGACopyAreaReq);
 | |
| 
 | |
|     if(Success != DGABlitRect(stuff->screen, stuff->srcx, stuff->srcy,
 | |
| 		stuff->width, stuff->height, stuff->dstx, stuff->dsty))
 | |
| 	return BadMatch;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXDGACopyTransparentArea(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGACopyTransparentAreaReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGACopyTransparentAreaReq);
 | |
| 
 | |
|     if(Success != DGABlitTransRect(stuff->screen, stuff->srcx, stuff->srcy,
 | |
| 	stuff->width, stuff->height, stuff->dstx, stuff->dsty, stuff->key))
 | |
| 	return BadMatch;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXDGAGetViewportStatus(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGAGetViewportStatusReq);
 | |
|     xXDGAGetViewportStatusReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGAGetViewportStatusReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
| 
 | |
|     rep.status = DGAGetViewportStatus(stuff->screen);
 | |
| 
 | |
|     WriteToClient(client, sizeof(xXDGAGetViewportStatusReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXDGASync(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGASyncReq);
 | |
|     xXDGASyncReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGASyncReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
| 
 | |
|     DGASync(stuff->screen);
 | |
| 
 | |
|     WriteToClient(client, sizeof(xXDGASyncReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXDGASetClientVersion(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGASetClientVersionReq);
 | |
| 
 | |
|     DGAPrivPtr pPriv;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGASetClientVersionReq);
 | |
|     if ((pPriv = DGA_GETPRIV(client)) == NULL) {
 | |
| 	pPriv = malloc(sizeof(DGAPrivRec));
 | |
| 	/* XXX Need to look into freeing this */
 | |
| 	if (!pPriv)
 | |
| 	    return BadAlloc;
 | |
| 	DGA_SETPRIV(client, pPriv);
 | |
|     }
 | |
|     pPriv->major = stuff->major;
 | |
|     pPriv->minor = stuff->minor;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXDGAChangePixmapMode(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGAChangePixmapModeReq);
 | |
|     xXDGAChangePixmapModeReply rep;
 | |
|     int x, y;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGAChangePixmapModeReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
| 
 | |
|     x = stuff->x;
 | |
|     y = stuff->y;
 | |
| 
 | |
|     if(!DGAChangePixmapMode(stuff->screen, &x, &y, stuff->flags))
 | |
| 	return BadMatch;
 | |
| 
 | |
|     rep.x = x;
 | |
|     rep.y = y;
 | |
|     WriteToClient(client, sizeof(xXDGAChangePixmapModeReply), (char *)&rep);
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXDGACreateColormap(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXDGACreateColormapReq);
 | |
|     int result;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
|         return BadValue;
 | |
| 
 | |
|     if(DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXDGACreateColormapReq);
 | |
| 
 | |
|     if(!stuff->mode)
 | |
| 	return BadValue;
 | |
| 
 | |
|     result = DGACreateColormap(stuff->screen, client, stuff->id,
 | |
| 				stuff->mode, stuff->alloc);
 | |
|     if(result != Success)
 | |
| 	return result;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| /*
 | |
|  *
 | |
|  * Support for the old DGA protocol, used to live in xf86dga.c
 | |
|  *
 | |
|  */
 | |
| 
 | |
| #ifdef DGA_PROTOCOL_OLD_SUPPORT
 | |
| 
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAGetVideoLL(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGAGetVideoLLReq);
 | |
|     xXF86DGAGetVideoLLReply rep;
 | |
|     XDGAModeRec mode;
 | |
|     int num, offset, flags;
 | |
|     char *name;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAGetVideoLLReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
| 
 | |
|     if(!DGAAvailable(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     if(!(num = DGAGetOldDGAMode(stuff->screen)))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     /* get the parameters for the mode that best matches */
 | |
|     DGAGetModeInfo(stuff->screen, &mode, num);
 | |
| 
 | |
|     if(!DGAOpenFramebuffer(stuff->screen, &name,
 | |
| 			(unsigned char**)(&rep.offset),
 | |
| 			(int*)(&rep.bank_size), &offset, &flags))
 | |
| 	return BadAlloc;
 | |
| 
 | |
|     rep.offset += mode.offset;
 | |
|     rep.width = mode.bytesPerScanline / (mode.bitsPerPixel >> 3);
 | |
|     rep.ram_size = rep.bank_size >> 10;
 | |
| 
 | |
|     WriteToClient(client, SIZEOF(xXF86DGAGetVideoLLReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGADirectVideo(ClientPtr client)
 | |
| {
 | |
|     int num;
 | |
|     PixmapPtr pix;
 | |
|     XDGAModeRec mode;
 | |
|     ClientPtr owner;
 | |
|     REQUEST(xXF86DGADirectVideoReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
|     REQUEST_SIZE_MATCH(xXF86DGADirectVideoReq);
 | |
| 
 | |
|     if (!DGAAvailable(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     owner = DGA_GETCLIENT(stuff->screen);
 | |
| 
 | |
|     if (owner && owner != client)
 | |
|         return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     if (stuff->enable & XF86DGADirectGraphics) {
 | |
| 	if(!(num = DGAGetOldDGAMode(stuff->screen)))
 | |
| 	    return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
|     } else
 | |
| 	num = 0;
 | |
| 
 | |
|     if(Success != DGASetMode(stuff->screen, num, &mode, &pix))
 | |
| 	return DGAErrorBase + XF86DGAScreenNotActive;
 | |
| 
 | |
|     DGASetInputMode (stuff->screen,
 | |
| 		     (stuff->enable & XF86DGADirectKeyb) != 0,
 | |
| 		     (stuff->enable & XF86DGADirectMouse) != 0);
 | |
| 
 | |
|     /* We need to track the client and attach the teardown callback */
 | |
|     if (stuff->enable &
 | |
| 	(XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse)) {
 | |
| 	if (!owner) {
 | |
| 	    if (DGACallbackRefCount++ == 0)
 | |
| 		AddCallback (&ClientStateCallback, DGAClientStateChange, NULL);
 | |
| 	}
 | |
| 
 | |
| 	DGA_SETCLIENT(stuff->screen, client);
 | |
|     } else {
 | |
| 	if (owner) {
 | |
| 	    if (--DGACallbackRefCount == 0)
 | |
| 		DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
 | |
| 	}
 | |
| 
 | |
| 	DGA_SETCLIENT(stuff->screen, NULL);
 | |
|     }
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAGetViewPortSize(ClientPtr client)
 | |
| {
 | |
|     int num;
 | |
|     XDGAModeRec mode;
 | |
|     REQUEST(xXF86DGAGetViewPortSizeReq);
 | |
|     xXF86DGAGetViewPortSizeReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAGetViewPortSizeReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
| 
 | |
|     if (!DGAAvailable(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     if(!(num = DGAGetOldDGAMode(stuff->screen)))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     DGAGetModeInfo(stuff->screen, &mode, num);
 | |
| 
 | |
|     rep.width = mode.viewportWidth;
 | |
|     rep.height = mode.viewportHeight;
 | |
| 
 | |
|     WriteToClient(client, SIZEOF(xXF86DGAGetViewPortSizeReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGASetViewPort(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGASetViewPortReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     if (DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGASetViewPortReq);
 | |
| 
 | |
|     if (!DGAAvailable(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 | |
| 
 | |
|     if (!DGAActive(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     if (DGASetViewport(stuff->screen, stuff->x, stuff->y, DGA_FLIP_RETRACE)
 | |
| 		!= Success)
 | |
| 	return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAGetVidPage(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGAGetVidPageReq);
 | |
|     xXF86DGAGetVidPageReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAGetVidPageReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
|     rep.vpage = 0;  /* silently fail */
 | |
| 
 | |
|     WriteToClient(client, SIZEOF(xXF86DGAGetVidPageReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXF86DGASetVidPage(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGASetVidPageReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGASetVidPageReq);
 | |
| 
 | |
|     /* silently fail */
 | |
| 
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAInstallColormap(ClientPtr client)
 | |
| {
 | |
|     ColormapPtr pcmp;
 | |
|     int rc;
 | |
|     REQUEST(xXF86DGAInstallColormapReq);
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     if (DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAInstallColormapReq);
 | |
| 
 | |
|     if (!DGAActive(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP,
 | |
| 				 client, DixInstallAccess);
 | |
|     if (rc == Success) {
 | |
| 	DGAInstallCmap(pcmp);
 | |
|         return Success;
 | |
|     } else {
 | |
|         return rc;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAQueryDirectVideo(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGAQueryDirectVideoReq);
 | |
|     xXF86DGAQueryDirectVideoReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAQueryDirectVideoReq);
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
|     rep.flags = 0;
 | |
| 
 | |
|     if (DGAAvailable(stuff->screen))
 | |
| 	rep.flags = XF86DGADirectPresent;
 | |
| 
 | |
|     WriteToClient(client, SIZEOF(xXF86DGAQueryDirectVideoReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| static int
 | |
| ProcXF86DGAViewPortChanged(ClientPtr client)
 | |
| {
 | |
|     REQUEST(xXF86DGAViewPortChangedReq);
 | |
|     xXF86DGAViewPortChangedReply rep;
 | |
| 
 | |
|     if (stuff->screen >= screenInfo.numScreens)
 | |
| 	return BadValue;
 | |
| 
 | |
|     if (DGA_GETCLIENT(stuff->screen) != client)
 | |
|         return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     REQUEST_SIZE_MATCH(xXF86DGAViewPortChangedReq);
 | |
| 
 | |
|     if (!DGAActive(stuff->screen))
 | |
| 	return DGAErrorBase + XF86DGADirectNotActivated;
 | |
| 
 | |
|     rep.type = X_Reply;
 | |
|     rep.length = 0;
 | |
|     rep.sequenceNumber = client->sequence;
 | |
|     rep.result = 1;
 | |
| 
 | |
|     WriteToClient(client, SIZEOF(xXF86DGAViewPortChangedReply), (char *)&rep);
 | |
|     return Success;
 | |
| }
 | |
| 
 | |
| #endif /* DGA_PROTOCOL_OLD_SUPPORT */
 | |
| 
 | |
| static int
 | |
| SProcXDGADispatch (ClientPtr client)
 | |
| {
 | |
|    return DGAErrorBase + XF86DGAClientNotLocal;
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #define DGA_REQ_DEBUG
 | |
| #endif
 | |
| 
 | |
| #ifdef DGA_REQ_DEBUG
 | |
| static char *dgaMinor[] = {
 | |
|     "QueryVersion",
 | |
|     "GetVideoLL",
 | |
|     "DirectVideo",
 | |
|     "GetViewPortSize",
 | |
|     "SetViewPort",
 | |
|     "GetVidPage",
 | |
|     "SetVidPage",
 | |
|     "InstallColormap",
 | |
|     "QueryDirectVideo",
 | |
|     "ViewPortChanged",
 | |
|     "10",
 | |
|     "11",
 | |
|     "QueryModes",
 | |
|     "SetMode",
 | |
|     "SetViewport",
 | |
|     "InstallColormap",
 | |
|     "SelectInput",
 | |
|     "FillRectangle",
 | |
|     "CopyArea",
 | |
|     "CopyTransparentArea",
 | |
|     "GetViewportStatus",
 | |
|     "Sync",
 | |
|     "OpenFramebuffer",
 | |
|     "CloseFramebuffer",
 | |
|     "SetClientVersion",
 | |
|     "ChangePixmapMode",
 | |
|     "CreateColormap",
 | |
| };
 | |
| #endif
 | |
| 
 | |
| static int
 | |
| ProcXDGADispatch (ClientPtr client)
 | |
| {
 | |
|     REQUEST(xReq);
 | |
| 
 | |
|     if (!LocalClient(client))
 | |
| 	return DGAErrorBase + XF86DGAClientNotLocal;
 | |
| 
 | |
| #ifdef DGA_REQ_DEBUG
 | |
|     if (stuff->data <= X_XDGACreateColormap)
 | |
| 	fprintf (stderr, "    DGA %s\n", dgaMinor[stuff->data]);
 | |
| #endif
 | |
| 
 | |
|     switch (stuff->data){
 | |
|     /*
 | |
|      * DGA2 Protocol
 | |
|      */
 | |
|     case X_XDGAQueryVersion:
 | |
| 	return ProcXDGAQueryVersion(client);
 | |
|     case X_XDGAQueryModes:
 | |
| 	return ProcXDGAQueryModes(client);
 | |
|     case X_XDGASetMode:
 | |
| 	return ProcXDGASetMode(client);
 | |
|     case X_XDGAOpenFramebuffer:
 | |
| 	return ProcXDGAOpenFramebuffer(client);
 | |
|     case X_XDGACloseFramebuffer:
 | |
| 	return ProcXDGACloseFramebuffer(client);
 | |
|     case X_XDGASetViewport:
 | |
| 	return ProcXDGASetViewport(client);
 | |
|     case X_XDGAInstallColormap:
 | |
| 	return ProcXDGAInstallColormap(client);
 | |
|     case X_XDGASelectInput:
 | |
| 	return ProcXDGASelectInput(client);
 | |
|     case X_XDGAFillRectangle:
 | |
| 	return ProcXDGAFillRectangle(client);
 | |
|     case X_XDGACopyArea:
 | |
| 	return ProcXDGACopyArea(client);
 | |
|     case X_XDGACopyTransparentArea:
 | |
| 	return ProcXDGACopyTransparentArea(client);
 | |
|     case X_XDGAGetViewportStatus:
 | |
| 	return ProcXDGAGetViewportStatus(client);
 | |
|     case X_XDGASync:
 | |
| 	return ProcXDGASync(client);
 | |
|     case X_XDGASetClientVersion:
 | |
| 	return ProcXDGASetClientVersion(client);
 | |
|     case X_XDGAChangePixmapMode:
 | |
| 	return ProcXDGAChangePixmapMode(client);
 | |
|     case X_XDGACreateColormap:
 | |
| 	return ProcXDGACreateColormap(client);
 | |
|     /*
 | |
|      * Old DGA Protocol
 | |
|      */
 | |
| #ifdef DGA_PROTOCOL_OLD_SUPPORT
 | |
|     case X_XF86DGAGetVideoLL:
 | |
| 	return ProcXF86DGAGetVideoLL(client);
 | |
|     case X_XF86DGADirectVideo:
 | |
| 	return ProcXF86DGADirectVideo(client);
 | |
|     case X_XF86DGAGetViewPortSize:
 | |
| 	return ProcXF86DGAGetViewPortSize(client);
 | |
|     case X_XF86DGASetViewPort:
 | |
| 	return ProcXF86DGASetViewPort(client);
 | |
|     case X_XF86DGAGetVidPage:
 | |
| 	return ProcXF86DGAGetVidPage(client);
 | |
|     case X_XF86DGASetVidPage:
 | |
| 	return ProcXF86DGASetVidPage(client);
 | |
|     case X_XF86DGAInstallColormap:
 | |
| 	return ProcXF86DGAInstallColormap(client);
 | |
|     case X_XF86DGAQueryDirectVideo:
 | |
| 	return ProcXF86DGAQueryDirectVideo(client);
 | |
|     case X_XF86DGAViewPortChanged:
 | |
| 	return ProcXF86DGAViewPortChanged(client);
 | |
| #endif /* DGA_PROTOCOL_OLD_SUPPORT */
 | |
|     default:
 | |
| 	return BadRequest;
 | |
|     }
 | |
| }
 | |
| 
 | |
| void
 | |
| XFree86DGARegister(INITARGS)
 | |
| {
 | |
|   XDGAEventBase = &DGAEventBase;
 | |
| }
 | |
| 
 | |
| void
 | |
| XFree86DGAExtensionInit(INITARGS)
 | |
| {
 | |
|     ExtensionEntry* extEntry;
 | |
| 
 | |
|     if (!dixRegisterPrivateKey(&DGAClientPrivateKeyRec, PRIVATE_CLIENT, 0))
 | |
| 	return;
 | |
| 
 | |
|     if (!dixRegisterPrivateKey(&DGAScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
 | |
| 	return;
 | |
| 
 | |
|     if ((extEntry = AddExtension(XF86DGANAME,
 | |
| 				XF86DGANumberEvents,
 | |
| 				XF86DGANumberErrors,
 | |
| 				ProcXDGADispatch,
 | |
| 				SProcXDGADispatch,
 | |
| 				XDGAResetProc,
 | |
| 				StandardMinorOpcode))) {
 | |
| 	int i;
 | |
| 
 | |
| 	DGAReqCode = (unsigned char)extEntry->base;
 | |
| 	DGAErrorBase = extEntry->errorBase;
 | |
| 	DGAEventBase = extEntry->eventBase;
 | |
| 	for (i = KeyPress; i <= MotionNotify; i++)
 | |
| 	    SetCriticalEvent (DGAEventBase + i);
 | |
|     }
 | |
| }
 |