xf86xvmc.c revision 6747b715 
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
48XvMCScreenInitProcPtr XvMCScreenInitProc = NULL;
49
50
51typedef struct {
52  CloseScreenProcPtr CloseScreen;
53  int num_adaptors;
54  XF86MCAdaptorPtr *adaptors;
55  XvMCAdaptorPtr dixinfo;
56} xf86XvMCScreenRec, *xf86XvMCScreenPtr;
57
58static DevPrivateKeyRec XF86XvMCScreenKeyRec;
59#define XF86XvMCScreenKey (&XF86XvMCScreenKeyRec)
60
61#define XF86XVMC_GET_PRIVATE(pScreen) (xf86XvMCScreenPtr) \
62    dixLookupPrivate(&(pScreen)->devPrivates, XF86XvMCScreenKey)
63
64
65static int
66xf86XvMCCreateContext (
67  XvPortPtr pPort,
68  XvMCContextPtr pContext,
69  int *num_priv,
70  CARD32 **priv
71)
72{
73    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
74    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
75
76    pContext->port_priv = (XvPortRecPrivatePtr)(pPort->devPriv.ptr);
77
78    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateContext)(
79		pScrn, pContext, num_priv, priv);
80}
81
82static void
83xf86XvMCDestroyContext ( XvMCContextPtr pContext)
84{
85    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
86    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
87
88    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroyContext)(
89                				pScrn, pContext);
90}
91
92static int
93xf86XvMCCreateSurface (
94  XvMCSurfacePtr pSurface,
95  int *num_priv,
96  CARD32 **priv
97)
98{
99    XvMCContextPtr pContext = pSurface->context;
100    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
101    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
102
103    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateSurface)(
104                pScrn, pSurface, num_priv, priv);
105}
106
107static void
108xf86XvMCDestroySurface (XvMCSurfacePtr pSurface)
109{
110    XvMCContextPtr pContext = pSurface->context;
111    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
112    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
113
114    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySurface)(
115                                                pScrn, pSurface);
116}
117
118static int
119xf86XvMCCreateSubpicture (
120  XvMCSubpicturePtr pSubpicture,
121  int *num_priv,
122  CARD32 **priv
123)
124{
125    XvMCContextPtr pContext = pSubpicture->context;
126    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
127    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
128
129    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateSubpicture)(
130                                  pScrn, pSubpicture, num_priv, priv);
131}
132
133static void
134xf86XvMCDestroySubpicture (XvMCSubpicturePtr pSubpicture)
135{
136    XvMCContextPtr pContext = pSubpicture->context;
137    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
138    ScrnInfoPtr pScrn = xf86Screens[pContext->pScreen->myNum];
139
140    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySubpicture)(
141                                                pScrn, pSubpicture);
142}
143
144
145static Bool
146xf86XvMCCloseScreen (int i, ScreenPtr pScreen)
147{
148    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pScreen);
149
150    pScreen->CloseScreen = pScreenPriv->CloseScreen;
151
152    free(pScreenPriv->dixinfo);
153    free(pScreenPriv);
154
155    return (*pScreen->CloseScreen)(i, pScreen);
156}
157
158Bool xf86XvMCScreenInit(
159   ScreenPtr pScreen,
160   int num_adaptors,
161   XF86MCAdaptorPtr *adaptors
162)
163{
164   XvMCAdaptorPtr pAdapt;
165   xf86XvMCScreenPtr pScreenPriv;
166   XvScreenPtr pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
167						    XF86XvScreenKey);
168   int i, j;
169
170   if(!XvMCScreenInitProc) return FALSE;
171
172   if(!(pAdapt = malloc(sizeof(XvMCAdaptorRec) * num_adaptors)))
173	return FALSE;
174
175   if (!dixRegisterPrivateKey(&XF86XvMCScreenKeyRec, PRIVATE_SCREEN, 0))
176       return FALSE;
177
178   if(!(pScreenPriv = malloc(sizeof(xf86XvMCScreenRec)))) {
179	free(pAdapt);
180	return FALSE;
181   }
182
183   dixSetPrivate(&pScreen->devPrivates, XF86XvMCScreenKey, pScreenPriv);
184
185   pScreenPriv->CloseScreen = pScreen->CloseScreen;
186   pScreen->CloseScreen = xf86XvMCCloseScreen;
187
188   pScreenPriv->num_adaptors = num_adaptors;
189   pScreenPriv->adaptors = adaptors;
190   pScreenPriv->dixinfo = pAdapt;
191
192   for(i = 0; i < num_adaptors; i++) {
193	pAdapt[i].xv_adaptor = NULL;
194	for(j = 0; j < pxvs->nAdaptors; j++) {
195	   if(!strcmp((*adaptors)->name, pxvs->pAdaptors[j].name)) {
196		pAdapt[i].xv_adaptor = &(pxvs->pAdaptors[j]);
197		break;
198	   }
199	}
200	if(!pAdapt[i].xv_adaptor) {
201	    /* no adaptor by that name */
202	    free(pAdapt);
203	    return FALSE;
204	}
205	pAdapt[i].num_surfaces = (*adaptors)->num_surfaces;
206	pAdapt[i].surfaces = (XvMCSurfaceInfoPtr*)((*adaptors)->surfaces);
207	pAdapt[i].num_subpictures = (*adaptors)->num_subpictures;
208	pAdapt[i].subpictures = (XvImagePtr*)((*adaptors)->subpictures);
209	pAdapt[i].CreateContext = xf86XvMCCreateContext;
210	pAdapt[i].DestroyContext = xf86XvMCDestroyContext;
211	pAdapt[i].CreateSurface = xf86XvMCCreateSurface;
212	pAdapt[i].DestroySurface = xf86XvMCDestroySurface;
213	pAdapt[i].CreateSubpicture = xf86XvMCCreateSubpicture;
214	pAdapt[i].DestroySubpicture = xf86XvMCDestroySubpicture;
215	adaptors++;
216   }
217
218   if(Success != (*XvMCScreenInitProc)(pScreen, num_adaptors, pAdapt))
219	return FALSE;
220
221   return TRUE;
222}
223
224XF86MCAdaptorPtr xf86XvMCCreateAdaptorRec (void)
225{
226   return calloc(1, sizeof(XF86MCAdaptorRec));
227}
228
229void xf86XvMCDestroyAdaptorRec(XF86MCAdaptorPtr adaptor)
230{
231   free(adaptor);
232}
233