2004-10-25 22:09:16 +01:00
|
|
|
/*
|
|
|
|
* (C) Copyright IBM Corporation 2004
|
|
|
|
* All Rights Reserved.
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
|
|
* to deal in the Software without restriction, including without limitation
|
|
|
|
* on the rights to use, copy, modify, merge, publish, distribute, sub
|
|
|
|
* license, and/or sell copies of the Software, and to permit persons to whom
|
|
|
|
* the Software is furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice (including the next
|
|
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
|
|
* Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
|
|
* DEALINGS IN THE SOFTWARE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* \file glx_query.c
|
|
|
|
* Generic utility functions to query internal data from the server.
|
2009-08-12 11:41:22 +01:00
|
|
|
*
|
2004-10-25 22:09:16 +01:00
|
|
|
* \author Ian Romanick <idr@us.ibm.com>
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "glxclient.h"
|
|
|
|
|
2008-10-18 15:53:08 +01:00
|
|
|
#if defined(USE_XCB)
|
|
|
|
# include <X11/Xlib-xcb.h>
|
|
|
|
# include <xcb/xcb.h>
|
|
|
|
# include <xcb/glx.h>
|
|
|
|
#endif
|
|
|
|
|
2008-11-03 17:31:22 +00:00
|
|
|
#ifdef USE_XCB
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Exchange a protocol request for glXQueryServerString.
|
|
|
|
*/
|
|
|
|
char *
|
2009-08-12 11:41:22 +01:00
|
|
|
__glXQueryServerString(Display * dpy, int opcode, CARD32 screen, CARD32 name)
|
2008-11-03 17:31:22 +00:00
|
|
|
{
|
|
|
|
xcb_connection_t *c = XGetXCBConnection(dpy);
|
2009-08-12 11:41:22 +01:00
|
|
|
xcb_glx_query_server_string_reply_t *reply =
|
2008-11-03 17:31:22 +00:00
|
|
|
xcb_glx_query_server_string_reply(c,
|
|
|
|
xcb_glx_query_server_string(c,
|
|
|
|
screen,
|
|
|
|
name),
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
/* The spec doesn't mention this, but the Xorg server replies with
|
|
|
|
* a string already terminated with '\0'. */
|
|
|
|
uint32_t len = xcb_glx_query_server_string_string_length(reply);
|
2009-08-12 11:41:22 +01:00
|
|
|
char *buf = Xmalloc(len);
|
2008-11-03 17:31:22 +00:00
|
|
|
memcpy(buf, xcb_glx_query_server_string_string(reply), len);
|
|
|
|
free(reply);
|
|
|
|
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Exchange a protocol request for glGetString.
|
|
|
|
*/
|
|
|
|
char *
|
2009-08-12 11:41:22 +01:00
|
|
|
__glXGetString(Display * dpy, int opcode, CARD32 contextTag, CARD32 name)
|
2008-11-03 17:31:22 +00:00
|
|
|
{
|
|
|
|
xcb_connection_t *c = XGetXCBConnection(dpy);
|
2009-08-12 11:41:22 +01:00
|
|
|
xcb_glx_get_string_reply_t *reply = xcb_glx_get_string_reply(c,
|
|
|
|
xcb_glx_get_string
|
|
|
|
(c,
|
|
|
|
contextTag,
|
|
|
|
name),
|
|
|
|
NULL);
|
2008-11-03 17:31:22 +00:00
|
|
|
|
|
|
|
/* The spec doesn't mention this, but the Xorg server replies with
|
|
|
|
* a string already terminated with '\0'. */
|
|
|
|
uint32_t len = xcb_glx_get_string_string_length(reply);
|
2009-08-12 11:41:22 +01:00
|
|
|
char *buf = Xmalloc(len);
|
2008-11-03 17:31:22 +00:00
|
|
|
memcpy(buf, xcb_glx_get_string_string(reply), len);
|
|
|
|
free(reply);
|
|
|
|
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
2004-10-25 22:09:16 +01:00
|
|
|
/**
|
|
|
|
* GLX protocol structure for the ficticious "GXLGenericGetString" request.
|
2009-08-12 11:41:22 +01:00
|
|
|
*
|
2004-10-25 22:09:16 +01:00
|
|
|
* This is a non-existant protocol packet. It just so happens that all of
|
|
|
|
* the real protocol packets used to request a string from the server have
|
|
|
|
* an identical binary layout. The only difference between them is the
|
|
|
|
* meaning of the \c for_whom field and the value of the \c glxCode.
|
|
|
|
*/
|
2008-10-13 13:12:40 +01:00
|
|
|
typedef struct GLXGenericGetString
|
|
|
|
{
|
|
|
|
CARD8 reqType;
|
|
|
|
CARD8 glxCode;
|
|
|
|
CARD16 length B16;
|
|
|
|
CARD32 for_whom B32;
|
|
|
|
CARD32 name B32;
|
2004-10-25 22:09:16 +01:00
|
|
|
} xGLXGenericGetStringReq;
|
|
|
|
|
|
|
|
/* These defines are only needed to make the GetReq macro happy.
|
|
|
|
*/
|
|
|
|
#define sz_xGLXGenericGetStringReq 12
|
|
|
|
#define X_GLXGenericGetString 0
|
|
|
|
|
|
|
|
/**
|
2008-10-21 15:20:24 +01:00
|
|
|
* Query the Server GLX string.
|
2004-10-25 22:09:16 +01:00
|
|
|
* This routine will allocate the necessay space for the string.
|
|
|
|
*/
|
2008-11-04 09:43:06 +00:00
|
|
|
static char *
|
2008-10-13 13:12:40 +01:00
|
|
|
__glXGetStringFromServer(Display * dpy, int opcode, CARD32 glxCode,
|
|
|
|
CARD32 for_whom, CARD32 name)
|
2004-10-25 22:09:16 +01:00
|
|
|
{
|
2008-10-13 13:12:40 +01:00
|
|
|
xGLXGenericGetStringReq *req;
|
|
|
|
xGLXSingleReply reply;
|
|
|
|
int length;
|
|
|
|
int numbytes;
|
|
|
|
char *buf;
|
2004-10-25 22:09:16 +01:00
|
|
|
|
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
LockDisplay(dpy);
|
2004-10-25 22:09:16 +01:00
|
|
|
|
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
/* All of the GLX protocol requests for getting a string from the server
|
|
|
|
* look the same. The exact meaning of the for_whom field is usually
|
|
|
|
* either the screen number (for glXQueryServerString) or the context tag
|
|
|
|
* (for GLXSingle).
|
|
|
|
*/
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
GetReq(GLXGenericGetString, req);
|
|
|
|
req->reqType = opcode;
|
|
|
|
req->glxCode = glxCode;
|
|
|
|
req->for_whom = for_whom;
|
|
|
|
req->name = name;
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
_XReply(dpy, (xReply *) & reply, 0, False);
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
length = reply.length * 4;
|
|
|
|
numbytes = reply.size;
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
buf = (char *) Xmalloc(numbytes);
|
|
|
|
if (buf != NULL) {
|
|
|
|
_XRead(dpy, buf, numbytes);
|
|
|
|
length -= numbytes;
|
|
|
|
}
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
_XEatData(dpy, length);
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
UnlockDisplay(dpy);
|
|
|
|
SyncHandle();
|
2004-10-25 22:09:16 +01:00
|
|
|
|
2008-10-13 13:12:40 +01:00
|
|
|
return buf;
|
2004-10-25 22:09:16 +01:00
|
|
|
}
|
2008-10-18 15:53:08 +01:00
|
|
|
|
|
|
|
char *
|
2009-08-12 11:41:22 +01:00
|
|
|
__glXQueryServerString(Display * dpy, int opcode, CARD32 screen, CARD32 name)
|
2008-10-18 15:53:08 +01:00
|
|
|
{
|
2008-11-04 10:31:53 +00:00
|
|
|
return __glXGetStringFromServer(dpy, opcode,
|
2009-08-12 11:41:22 +01:00
|
|
|
X_GLXQueryServerString, screen, name);
|
2008-11-03 17:31:22 +00:00
|
|
|
}
|
2008-10-18 15:53:08 +01:00
|
|
|
|
2008-11-03 17:31:22 +00:00
|
|
|
char *
|
2009-08-12 11:41:22 +01:00
|
|
|
__glXGetString(Display * dpy, int opcode, CARD32 contextTag, CARD32 name)
|
2008-11-03 17:31:22 +00:00
|
|
|
{
|
2008-11-04 10:31:53 +00:00
|
|
|
return __glXGetStringFromServer(dpy, opcode, X_GLsop_GetString,
|
2008-11-03 17:31:22 +00:00
|
|
|
contextTag, name);
|
2008-10-18 15:53:08 +01:00
|
|
|
}
|
2008-11-03 17:31:22 +00:00
|
|
|
|
2008-10-18 15:53:08 +01:00
|
|
|
#endif /* USE_XCB */
|