xf86xvmc.c revision 05b261ec 
1
2/*
3 * Copyright (c) 2001-2003 by The XFree86 Project, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Except as contained in this notice, the name of the copyright holder(s)
24 * and author(s) shall not be used in advertising or otherwise to promote
25 * the sale, use or other dealings in this Software without prior written
26 * authorization from the copyright holder(s) and author(s).
27 */
28
29#ifdef HAVE_XORG_CONFIG_H
30#include <xorg-config.h>
31#endif
32
33#include "misc.h"
34#include "xf86.h"
35#include "xf86_OSproc.h"
36
37#include <X11/X.h>
38#include <X11/Xproto.h>
39#include "scrnintstr.h"
40#include "resource.h"
41#include "dixstruct.h"
42
43#include "xvmodproc.h"
44
45#include "xf86xvpriv.h"
46#include "xf86xvmc.h"
47
48typedef int (*XvMCScreenInitProcPtr)(ScreenPtr, int, XvMCAdaptorPtr);
49_X_EXPORT XvMCScreenInitProcPtr XvMCScreenInitProc = NULL;
50
51
52typedef struct {
53  CloseScreenProcPtr CloseScreen;
54  int num_adaptors;
55  XF86MCAdaptorPtr *adaptors;
56  XvMCAdaptorPtr dixinfo;
57} xf86XvMCScreenRec, *xf86XvMCScreenPtr;
58
59static unsigned long XF86XvMCGeneration = 0;
60static int XF86XvMCScreenIndex = -1;
61
62#define XF86XVMC_GET_PRIVATE(pScreen) \
63   (xf86XvMCScreenPtr)((pScreen)->devPrivates[XF86XvMCScreenIndex].ptr)
64
65
66static int
67xf86XvMCCreateContext (
68  XvPortPtr pPort,
69  XvMCContextPtr pContext,
70  int *num_priv,
71  CARD32 **priv
72)
73{
74    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
75    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
76
77    pContext->port_priv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
78
79    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateContext)(
80		pScrn, pContext, num_priv, priv);
81}
82
83static void
84xf86XvMCDestroyContext ( XvMCContextPtr pContext)
85{
86    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
87    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
88
89    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroyContext)(
90                				pScrn, pContext);
91}
92
93static int
94xf86XvMCCreateSurface (
95  XvMCSurfacePtr pSurface,
96  int *num_priv,
97  CARD32 **priv
98)
99{
100    XvMCContextPtr pContext = pSurface->context;
101    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
102    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
103
104    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateSurface)(
105                pScrn, pSurface, num_priv, priv);
106}
107
108static void
109xf86XvMCDestroySurface (XvMCSurfacePtr pSurface)
110{
111    XvMCContextPtr pContext = pSurface->context;
112    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
113    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
114
115    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySurface)(
116                                                pScrn, pSurface);
117}
118
119static int
120xf86XvMCCreateSubpicture (
121  XvMCSubpicturePtr pSubpicture,
122  int *num_priv,
123  CARD32 **priv
124)
125{
126    XvMCContextPtr pContext = pSubpicture->context;
127    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
128    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
129
130    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateSubpicture)(
131                                  pScrn, pSubpicture, num_priv, priv);
132}
133
134static void
135xf86XvMCDestroySubpicture (XvMCSubpicturePtr pSubpicture)
136{
137    XvMCContextPtr pContext = pSubpicture->context;
138    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
139    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
140
141    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySubpicture)(
142                                                pScrn, pSubpicture);
143}
144
145
146static Bool
147xf86XvMCCloseScreen (int i, ScreenPtr pScreen)
148{
149    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pScreen);
150
151    pScreen->CloseScreen = pScreenPriv->CloseScreen;
152
153    xfree(pScreenPriv->dixinfo);
154    xfree(pScreenPriv);
155
156    return (*pScreen->CloseScreen)(i, pScreen);
157}
158
159_X_EXPORT Bool xf86XvMCScreenInit(
160   ScreenPtr pScreen,
161   int num_adaptors,
162   XF86MCAdaptorPtr *adaptors
163)
164{
165   XvMCAdaptorPtr pAdapt;
166   xf86XvMCScreenPtr pScreenPriv;
167   XvScreenPtr pxvs =
168	(XvScreenPtr)(pScreen->devPrivates[XF86XvScreenIndex].ptr);
169
170   int i, j;
171
172   if(!XvMCScreenInitProc) return FALSE;
173
174   if(XF86XvMCGeneration != serverGeneration) {
175	if((XF86XvMCScreenIndex = AllocateScreenPrivateIndex()) < 0)
176	   return FALSE;
177	XF86XvMCGeneration = serverGeneration;
178   }
179
180   if(!(pAdapt = xalloc(sizeof(XvMCAdaptorRec) * num_adaptors)))
181	return FALSE;
182
183   if(!(pScreenPriv = xalloc(sizeof(xf86XvMCScreenRec)))) {
184	xfree(pAdapt);
185	return FALSE;
186   }
187
188   pScreen->devPrivates[XF86XvMCScreenIndex].ptr = (pointer)pScreenPriv;
189
190   pScreenPriv->CloseScreen = pScreen->CloseScreen;
191   pScreen->CloseScreen = xf86XvMCCloseScreen;
192
193   pScreenPriv->num_adaptors = num_adaptors;
194   pScreenPriv->adaptors = adaptors;
195   pScreenPriv->dixinfo = pAdapt;
196
197   for(i = 0; i < num_adaptors; i++) {
198	pAdapt[i].xv_adaptor = NULL;
199	for(j = 0; j < pxvs->nAdaptors; j++) {
200	   if(!strcmp((*adaptors)->name, pxvs->pAdaptors[j].name)) {
201		pAdapt[i].xv_adaptor = &(pxvs->pAdaptors[j]);
202		break;
203	   }
204	}
205	if(!pAdapt[i].xv_adaptor) {
206	    /* no adaptor by that name */
207	    xfree(pAdapt);
208	    return FALSE;
209	}
210	pAdapt[i].num_surfaces = (*adaptors)->num_surfaces;
211	pAdapt[i].surfaces = (XvMCSurfaceInfoPtr*)((*adaptors)->surfaces);
212	pAdapt[i].num_subpictures = (*adaptors)->num_subpictures;
213	pAdapt[i].subpictures = (XvImagePtr*)((*adaptors)->subpictures);
214	pAdapt[i].CreateContext = xf86XvMCCreateContext;
215	pAdapt[i].DestroyContext = xf86XvMCDestroyContext;
216	pAdapt[i].CreateSurface = xf86XvMCCreateSurface;
217	pAdapt[i].DestroySurface = xf86XvMCDestroySurface;
218	pAdapt[i].CreateSubpicture = xf86XvMCCreateSubpicture;
219	pAdapt[i].DestroySubpicture = xf86XvMCDestroySubpicture;
220	adaptors++;
221   }
222
223   if(Success != (*XvMCScreenInitProc)(pScreen, num_adaptors, pAdapt))
224	return FALSE;
225
226   return TRUE;
227}
228
229_X_EXPORT XF86MCAdaptorPtr xf86XvMCCreateAdaptorRec (void)
230{
231   return xcalloc(1, sizeof(XF86MCAdaptorRec));
232}
233
234_X_EXPORT void xf86XvMCDestroyAdaptorRec(XF86MCAdaptorPtr adaptor)
235{
236   xfree(adaptor);
237}
238