service.cpp@ 7801

Last change on this file since 7801 was 7801, checked in by vboxsync, 17 years ago
HGCM: Add user data pointer to HGCM service function table
Property svn:eol-style set to `native`
File size: 11.6 KB

Line
1	/** @file
2	* VBox OpenGL: Host service entry points.
3	*/
4
5	/*
6	* Copyright (C) 2006-2007 innotek GmbH
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*/
16
17	#include <iprt/alloc.h>
18	#include <iprt/string.h>
19	#include <iprt/assert.h>
20	#include <VBox/ssm.h>
21	#define LOG_GROUP LOG_GROUP_SHARED_OPENGL
22	#include <VBox/log.h>
23
24	#include "vboxgl.h"
25	#include "gldrv.h"
26
27
28	PVBOXHGCMSVCHELPERS g_pHelpers;
29
30
31	static DECLCALLBACK(int) svcUnload (void *)
32	{
33	int rc = VINF_SUCCESS;
34
35	Log(("svcUnload\n"));
36
37	vboxglGlobalUnload();
38	return rc;
39	}
40
41	static DECLCALLBACK(int) svcConnect (void , uint32_t u32ClientID, void pvClient)
42	{
43	int rc = VINF_SUCCESS;
44
45	NOREF(u32ClientID);
46	NOREF(pvClient);
47
48	Log(("svcConnect: u32ClientID = %d\n", u32ClientID));
49
50	vboxglConnect((PVBOXOGLCTX)pvClient);
51	return rc;
52	}
53
54	static DECLCALLBACK(int) svcDisconnect (void , uint32_t u32ClientID, void pvClient)
55	{
56	int rc = VINF_SUCCESS;
57	VBOXOGLCTX pClient = (VBOXOGLCTX )pvClient;
58
59	NOREF(pClient);
60
61	Log(("svcDisconnect: u32ClientID = %d\n", u32ClientID));
62	vboxglDisconnect((PVBOXOGLCTX)pvClient);
63	return rc;
64	}
65
66	/**
67	* We can't save the OpenGL state, so there's not much to do. Perhaps we should invalidate the client id?
68	*/
69	static DECLCALLBACK(int) svcSaveState(void , uint32_t u32ClientID, void pvClient, PSSMHANDLE pSSM)
70	{
71	VBOXOGLCTX pClient = (VBOXOGLCTX )pvClient;
72
73	NOREF(pClient);
74	NOREF(pSSM);
75
76	Log(("svcSaveState: u32ClientID = %d\n", u32ClientID));
77
78	return VINF_SUCCESS;
79	}
80
81	static DECLCALLBACK(int) svcLoadState(void , uint32_t u32ClientID, void pvClient, PSSMHANDLE pSSM)
82	{
83	VBOXOGLCTX pClient = (VBOXOGLCTX )pvClient;
84
85	NOREF(pClient);
86	NOREF(pSSM);
87
88	Log(("svcLoadState: u32ClientID = %d\n", u32ClientID));
89
90	return VINF_SUCCESS;
91	}
92
93	static DECLCALLBACK(void) svcCall (void , VBOXHGCMCALLHANDLE callHandle, uint32_t u32ClientID, void pvClient, uint32_t u32Function, uint32_t cParms, VBOXHGCMSVCPARM paParms[])
94	{
95	int rc = VINF_SUCCESS;
96
97	Log(("svcCall: u32ClientID = %d, fn = %d, cParms = %d, pparms = %d\n", u32ClientID, u32Function, cParms, paParms));
98
99	VBOXOGLCTX pClient = (VBOXOGLCTX )pvClient;
100
101	#ifdef DEBUG
102	uint32_t i;
103
104	for (i = 0; i < cParms; i++)
105	{
106	/** @todo parameters other than 32 bit */
107	Log((" pparms[%d]: type %d value %d\n", i, paParms[i].type, paParms[i].u.uint32));
108	}
109	#endif
110
111	switch (u32Function)
112	{
113	case VBOXOGL_FN_GLGETSTRING:
114	{
115	Log(("svcCall: VBOXOGL_FN_GLGETSTRING\n"));
116
117	/* Verify parameter count and types. */
118	if (cParms != VBOXOGL_CPARMS_GLGETSTRING)
119	{
120	rc = VERR_INVALID_PARAMETER;
121	}
122	else
123	if ( paParms[0].type != VBOX_HGCM_SVC_PARM_32BIT /* name */
124	\|\| paParms[1].type != VBOX_HGCM_SVC_PARM_PTR /* string */
125	)
126	{
127	rc = VERR_INVALID_PARAMETER;
128	}
129	else
130	{
131	/* Fetch parameters. */
132	uint32_t name = paParms[0].u.uint32;
133	char pString = (char )paParms[1].u.pointer.addr;
134	uint32_t cbString = paParms[1].u.pointer.size;
135
136	/* Verify parameters values. */
137	if ( (cbString < 32)
138	)
139	{
140	rc = VERR_INVALID_PARAMETER;
141	}
142	else
143	{
144	/* Execute the function. */
145	rc = vboxglGetString(pClient, name, pString, &cbString);
146
147	if (VBOX_SUCCESS(rc))
148	{
149	/* Update parameters.*/
150	paParms[1].u.pointer.size = cbString;
151	}
152	}
153	}
154	break;
155	}
156
157	case VBOXOGL_FN_GLFLUSH:
158	{
159	Log(("svcCall: VBOXOGL_FN_GLFLUSH\n"));
160
161	/* Verify parameter count and types. */
162	if (cParms != VBOXOGL_CPARMS_GLFLUSH)
163	{
164	rc = VERR_INVALID_PARAMETER;
165	}
166	else
167	if ( paParms[0].type != VBOX_HGCM_SVC_PARM_PTR /* pCmdBuffer */
168	\|\| paParms[1].type != VBOX_HGCM_SVC_PARM_32BIT /* cCommands */
169	\|\| paParms[2].type != VBOX_HGCM_SVC_PARM_64BIT /* retval */
170	\|\| paParms[3].type != VBOX_HGCM_SVC_PARM_32BIT /* lasterror */
171	)
172	{
173	rc = VERR_INVALID_PARAMETER;
174	}
175	else
176	{
177	/* Fetch parameters. */
178	uint8_t pCmdBuffer = (uint8_t )paParms[0].u.pointer.addr;
179	uint32_t cbCmdBuffer = paParms[0].u.pointer.size;
180	uint32_t cCommands = paParms[1].u.uint32;
181	GLenum lasterror;
182	uint64_t lastretval;
183
184	/* Execute the function. */
185	rc = vboxglFlushBuffer(pClient, pCmdBuffer, cbCmdBuffer, cCommands, &lasterror, &lastretval);
186
187	if (VBOX_SUCCESS(rc))
188	{
189	/* Update parameters.*/
190	paParms[2].u.uint64 = lastretval;
191	paParms[3].u.uint32 = lasterror;
192	}
193	}
194	break;
195	}
196
197	case VBOXOGL_FN_GLFLUSHPTR:
198	{
199	Log(("svcCall: VBOXOGL_FN_GLFLUSHPTR\n"));
200
201	/* Verify parameter count and types. */
202	if (cParms != VBOXOGL_CPARMS_GLFLUSHPTR)
203	{
204	rc = VERR_INVALID_PARAMETER;
205	}
206	else
207	if ( paParms[0].type != VBOX_HGCM_SVC_PARM_PTR /* pCmdBuffer */
208	\|\| paParms[1].type != VBOX_HGCM_SVC_PARM_32BIT /* cCommands */
209	\|\| ( paParms[2].type != VBOX_HGCM_SVC_PARM_PTR /* pLastParam */
210	&& paParms[2].type != VBOX_HGCM_SVC_PARM_32BIT) /* pLastParam if NULL */
211	\|\| paParms[3].type != VBOX_HGCM_SVC_PARM_64BIT /* retval */
212	\|\| paParms[4].type != VBOX_HGCM_SVC_PARM_32BIT /* lasterror */
213	)
214	{
215	rc = VERR_INVALID_PARAMETER;
216	}
217	else
218	{
219	/* Fetch parameters. */
220	uint8_t pCmdBuffer = (uint8_t )paParms[0].u.pointer.addr;
221	uint32_t cbCmdBuffer = paParms[0].u.pointer.size;
222	uint32_t cCommands = paParms[1].u.uint32;
223	GLenum lasterror;
224	uint64_t lastretval;
225
226	/* Save the last parameter of the last command in the client structure so the macro can pick it up there */
227	if (paParms[2].type == VBOX_HGCM_SVC_PARM_32BIT)
228	{
229	/* HGCM doesn't like NULL pointers. */
230	pClient->pLastParam = NULL;
231	pClient->cbLastParam = 0;
232	}
233	else
234	{
235	pClient->pLastParam = (uint8_t *)paParms[2].u.pointer.addr;
236	pClient->cbLastParam = paParms[2].u.pointer.size;
237	}
238
239	/* Execute the function. */
240	rc = vboxglFlushBuffer(pClient, pCmdBuffer, cbCmdBuffer, cCommands, &lasterror, &lastretval);
241
242	/* Clear last parameter info again */
243	pClient->pLastParam = 0;
244	pClient->cbLastParam = 0;
245
246	if (VBOX_SUCCESS(rc))
247	{
248	/* Update parameters.*/
249	paParms[3].u.uint64 = lastretval;
250	paParms[4].u.uint32 = lasterror;
251	}
252	}
253	break;
254	}
255
256	case VBOXOGL_FN_GLCHECKEXT:
257	{
258	Log(("svcCall: VBOXOGL_FN_GLCHECKEXT\n"));
259
260	/* Verify parameter count and types. */
261	if (cParms != VBOXOGL_CPARMS_GLCHECKEXT)
262	{
263	rc = VERR_INVALID_PARAMETER;
264	}
265	else
266	if ( paParms[0].type != VBOX_HGCM_SVC_PARM_PTR /* pszExtFnName */
267	)
268	{
269	rc = VERR_INVALID_PARAMETER;
270	}
271	else
272	{
273	/* Fetch parameters. */
274	char pszExtFnName = (char )paParms[0].u.pointer.addr;
275	uint32_t cbExtFnName = paParms[0].u.pointer.size; /* size including null terminator */
276
277	/* sanity checks */
278	if ( cbExtFnName > 256
279	\|\| pszExtFnName[cbExtFnName-1] != 0
280	)
281	{
282	rc = VERR_INVALID_PARAMETER;
283	}
284	else
285	{
286	#ifdef RT_OS_WINDOWS
287	/* Execute the function. */
288	if (vboxwglGetProcAddress(pszExtFnName))
289	rc = VINF_SUCCESS;
290	else
291	rc = VERR_FILE_NOT_FOUND;
292	#else
293	rc = VERR_FILE_NOT_FOUND;
294	#endif
295	if (VBOX_SUCCESS(rc))
296	{
297	/* Update parameters.*/
298	}
299	}
300	}
301	break;
302	}
303
304	default:
305	{
306	rc = VERR_NOT_IMPLEMENTED;
307	}
308	}
309
310	LogFlow(("svcCall: rc = %Vrc\n", rc));
311
312	g_pHelpers->pfnCallComplete (callHandle, rc);
313	}
314
315	/*
316	* We differentiate between a function handler for the guest and one for the host. The guest is not allowed to add or remove mappings for obvious security reasons.
317	*/
318	static DECLCALLBACK(int) svcHostCall (void *, uint32_t u32Function, uint32_t cParms, VBOXHGCMSVCPARM paParms[])
319	{
320	int rc = VINF_SUCCESS;
321
322	Log(("svcHostCall: fn = %d, cParms = %d, pparms = %d\n", u32Function, cParms, paParms));
323
324	#ifdef DEBUG
325	uint32_t i;
326
327	for (i = 0; i < cParms; i++)
328	{
329	/** @todo parameters other than 32 bit */
330	Log((" pparms[%d]: type %d value %d\n", i, paParms[i].type, paParms[i].u.uint32));
331	}
332	#endif
333
334	switch (u32Function)
335	{
336	default:
337	rc = VERR_NOT_IMPLEMENTED;
338	break;
339	}
340
341	LogFlow(("svcHostCall: rc = %Vrc\n", rc));
342	return rc;
343	}
344
345	extern "C" DECLCALLBACK(DECLEXPORT(int)) VBoxHGCMSvcLoad (VBOXHGCMSVCFNTABLE *ptable)
346	{
347	int rc = VINF_SUCCESS;
348
349	Log(("VBoxHGCMSvcLoad: ptable = %p\n", ptable));
350
351	if (!ptable)
352	{
353	rc = VERR_INVALID_PARAMETER;
354	}
355	else
356	{
357	Log(("VBoxHGCMSvcLoad: ptable->cbSize = %d, ptable->u32Version = 0x%08X\n", ptable->cbSize, ptable->u32Version));
358
359	if ( ptable->cbSize != sizeof (VBOXHGCMSVCFNTABLE)
360	\|\| ptable->u32Version != VBOX_HGCM_SVC_VERSION)
361	{
362	rc = VERR_INVALID_PARAMETER;
363	}
364	else
365	{
366	g_pHelpers = ptable->pHelpers;
367
368	ptable->cbClient = sizeof (VBOXOGLCTX);
369
370	ptable->pfnUnload = svcUnload;
371	ptable->pfnConnect = svcConnect;
372	ptable->pfnDisconnect = svcDisconnect;
373	ptable->pfnCall = svcCall;
374	ptable->pfnHostCall = svcHostCall;
375	ptable->pfnSaveState = svcSaveState;
376	ptable->pfnLoadState = svcLoadState;
377	ptable->pvService = NULL;
378
379	vboxglGlobalInit();
380	}
381	}
382
383	return rc;
384	}

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source: vbox/trunk/src/VBox/HostServices/SharedOpenGL/service.cpp@ 7801

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