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058815bed1
No need to go indirectly through a vector table, since everything's fixed anyways. It's not a pretty robust programming style: any changes need great care, in order to not mix up things. Replacing this by direct switch/case statement, which is using the defines from the xrandr protocol headers. Also adding a little bit more protection against subtle programming errors and reducing cognitive load (source size) on understanding the code by using a tiny macro for deducing define name and function name from the request's name. This approach actually uncovered some subtle bug that had been waiting in the dark for over 15 years. As collateral benefit, getting a tiny bit better performance. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1794>
144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/*
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* Copyright © 2000 Compaq Computer Corporation
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* Copyright © 2002 Hewlett-Packard Company
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* Copyright © 2006 Intel Corporation
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* Copyright © 2008 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*
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* Author: Jim Gettys, Hewlett-Packard Company, Inc.
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* Keith Packard, Intel Corporation
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*/
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#ifndef _XSERVER_RANDRSTR_PRIV_H_
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#define _XSERVER_RANDRSTR_PRIV_H_
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#include "randrstr.h"
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extern int RREventBase, RRErrorBase;
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extern RESTYPE RRClientType, RREventType; /* resource types for event masks */
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extern DevPrivateKeyRec RRClientPrivateKeyRec;
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#define RRClientPrivateKey (&RRClientPrivateKeyRec)
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#define VERIFY_RR_OUTPUT(id, ptr, a)\
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{\
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int rc = dixLookupResourceByType((void **)&(ptr), id,\
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RROutputType, client, a);\
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if (rc != Success) {\
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client->errorValue = id;\
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return rc;\
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}\
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}
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#define VERIFY_RR_CRTC(id, ptr, a)\
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{\
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int rc = dixLookupResourceByType((void **)&(ptr), id,\
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RRCrtcType, client, a);\
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if (rc != Success) {\
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client->errorValue = id;\
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return rc;\
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}\
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}
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#define VERIFY_RR_MODE(id, ptr, a)\
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{\
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int rc = dixLookupResourceByType((void **)&(ptr), id,\
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RRModeType, client, a);\
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if (rc != Success) {\
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client->errorValue = id;\
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return rc;\
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}\
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}
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#define VERIFY_RR_PROVIDER(id, ptr, a)\
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{\
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int rc = dixLookupResourceByType((void **)&(ptr), id,\
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RRProviderType, client, a);\
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if (rc != Success) {\
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client->errorValue = id;\
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return rc;\
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}\
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}
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#define VERIFY_RR_LEASE(id, ptr, a)\
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{\
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int rc = dixLookupResourceByType((void **)&(ptr), id,\
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RRLeaseType, client, a);\
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if (rc != Success) {\
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client->errorValue = id;\
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return rc;\
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}\
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}
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#define GetRRClient(pClient) ((RRClientPtr)dixLookupPrivate(&(pClient)->devPrivates, RRClientPrivateKey))
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#define rrClientPriv(pClient) RRClientPtr pRRClient = GetRRClient(pClient)
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int ProcRRGetPanning(ClientPtr client);
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int ProcRRSetPanning(ClientPtr client);
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void RRConstrainCursorHarder(DeviceIntPtr, ScreenPtr, int, int *, int *);
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/* rrlease.c */
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void RRDeliverLeaseEvent(ClientPtr client, WindowPtr window);
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void RRTerminateLease(RRLeasePtr lease);
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Bool RRLeaseInit(void);
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/* rrprovider.c */
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#define PRIME_SYNC_PROP "PRIME Synchronization"
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void RRMonitorInit(ScreenPtr screen);
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Bool RRMonitorMakeList(ScreenPtr screen, Bool get_active, RRMonitorPtr *monitors_ret, int *nmon_ret);
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int RRMonitorCountList(ScreenPtr screen);
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void RRMonitorFreeList(RRMonitorPtr monitors, int nmon);
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void RRMonitorClose(ScreenPtr screen);
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RRMonitorPtr RRMonitorAlloc(int noutput);
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int RRMonitorAdd(ClientPtr client, ScreenPtr screen, RRMonitorPtr monitor);
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void RRMonitorFree(RRMonitorPtr monitor);
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int ProcRRGetMonitors(ClientPtr client);
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int ProcRRSetMonitor(ClientPtr client);
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int ProcRRDeleteMonitor(ClientPtr client);
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int ProcRRCreateLease(ClientPtr client);
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int ProcRRFreeLease(ClientPtr client);
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int ProcRRQueryVersion(ClientPtr client);
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int ProcRRSelectInput(ClientPtr client);
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int ProcRRDispatch(ClientPtr client);
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int SProcRRDispatch(ClientPtr client);
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#endif /* _XSERVER_RANDRSTR_PRIV_H_ */
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