xf86xvmc.c revision 1b5d61b8 
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 "xf86xvpriv.h"
44#include "xf86xvmc.h"
45
46typedef struct {
47    CloseScreenProcPtr CloseScreen;
48    int num_adaptors;
49    XF86MCAdaptorPtr *adaptors;
50    XvMCAdaptorPtr dixinfo;
51} xf86XvMCScreenRec, *xf86XvMCScreenPtr;
52
53static DevPrivateKeyRec XF86XvMCScreenKeyRec;
54
55#define XF86XvMCScreenKey (&XF86XvMCScreenKeyRec)
56
57#define XF86XVMC_GET_PRIVATE(pScreen) (xf86XvMCScreenPtr) \
58    dixLookupPrivate(&(pScreen)->devPrivates, XF86XvMCScreenKey)
59
60static int
61xf86XvMCCreateContext(XvPortPtr pPort,
62                      XvMCContextPtr pContext, int *num_priv, CARD32 **priv)
63{
64    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
65    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
66
67    pContext->port_priv = (XvPortRecPrivatePtr) (pPort->devPriv.ptr);
68
69    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateContext) (pScrn,
70                                                                         pContext,
71                                                                         num_priv,
72                                                                         priv);
73}
74
75static void
76xf86XvMCDestroyContext(XvMCContextPtr pContext)
77{
78    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
79    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
80
81    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroyContext) (pScrn,
82                                                                   pContext);
83}
84
85static int
86xf86XvMCCreateSurface(XvMCSurfacePtr pSurface, int *num_priv, CARD32 **priv)
87{
88    XvMCContextPtr pContext = pSurface->context;
89    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
90    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
91
92    return (*pScreenPriv->adaptors[pContext->adapt_num]->CreateSurface) (pScrn,
93                                                                         pSurface,
94                                                                         num_priv,
95                                                                         priv);
96}
97
98static void
99xf86XvMCDestroySurface(XvMCSurfacePtr pSurface)
100{
101    XvMCContextPtr pContext = pSurface->context;
102    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
103    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
104
105    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySurface) (pScrn,
106                                                                   pSurface);
107}
108
109static int
110xf86XvMCCreateSubpicture(XvMCSubpicturePtr pSubpicture,
111                         int *num_priv, CARD32 **priv)
112{
113    XvMCContextPtr pContext = pSubpicture->context;
114    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
115    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
116
117    return (*pScreenPriv->adaptors[pContext->adapt_num]->
118            CreateSubpicture) (pScrn, pSubpicture, num_priv, priv);
119}
120
121static void
122xf86XvMCDestroySubpicture(XvMCSubpicturePtr pSubpicture)
123{
124    XvMCContextPtr pContext = pSubpicture->context;
125    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pContext->pScreen);
126    ScrnInfoPtr pScrn = xf86ScreenToScrn(pContext->pScreen);
127
128    (*pScreenPriv->adaptors[pContext->adapt_num]->DestroySubpicture) (pScrn,
129                                                                      pSubpicture);
130}
131
132static Bool
133xf86XvMCCloseScreen(ScreenPtr pScreen)
134{
135    xf86XvMCScreenPtr pScreenPriv = XF86XVMC_GET_PRIVATE(pScreen);
136
137    pScreen->CloseScreen = pScreenPriv->CloseScreen;
138
139    free(pScreenPriv->dixinfo);
140    free(pScreenPriv);
141
142    return (*pScreen->CloseScreen) (pScreen);
143}
144
145Bool
146xf86XvMCScreenInit(ScreenPtr pScreen,
147                   int num_adaptors, XF86MCAdaptorPtr * adaptors)
148{
149    XvMCAdaptorPtr pAdapt;
150    xf86XvMCScreenPtr pScreenPriv;
151    XvScreenPtr pxvs = (XvScreenPtr) dixLookupPrivate(&pScreen->devPrivates,
152                                                      XF86XvScreenKey);
153    int i, j;
154
155    if (noXvExtension)
156        return FALSE;
157
158    if (!(pAdapt = xallocarray(num_adaptors, sizeof(XvMCAdaptorRec))))
159        return FALSE;
160
161    if (!dixRegisterPrivateKey(&XF86XvMCScreenKeyRec, PRIVATE_SCREEN, 0)) {
162        free(pAdapt);
163        return FALSE;
164    }
165
166    if (!(pScreenPriv = malloc(sizeof(xf86XvMCScreenRec)))) {
167        free(pAdapt);
168        return FALSE;
169    }
170
171    dixSetPrivate(&pScreen->devPrivates, XF86XvMCScreenKey, pScreenPriv);
172
173    pScreenPriv->CloseScreen = pScreen->CloseScreen;
174    pScreen->CloseScreen = xf86XvMCCloseScreen;
175
176    pScreenPriv->num_adaptors = num_adaptors;
177    pScreenPriv->adaptors = adaptors;
178    pScreenPriv->dixinfo = pAdapt;
179
180    for (i = 0; i < num_adaptors; i++) {
181        pAdapt[i].xv_adaptor = NULL;
182        for (j = 0; j < pxvs->nAdaptors; j++) {
183            if (!strcmp((*adaptors)->name, pxvs->pAdaptors[j].name)) {
184                pAdapt[i].xv_adaptor = &(pxvs->pAdaptors[j]);
185                break;
186            }
187        }
188        if (!pAdapt[i].xv_adaptor) {
189            /* no adaptor by that name */
190            pScreenPriv->dixinfo = FALSE;
191            free(pAdapt);
192            return FALSE;
193        }
194        pAdapt[i].num_surfaces = (*adaptors)->num_surfaces;
195        pAdapt[i].surfaces = (XvMCSurfaceInfoPtr *) ((*adaptors)->surfaces);
196        pAdapt[i].num_subpictures = (*adaptors)->num_subpictures;
197        pAdapt[i].subpictures = (XvImagePtr *) ((*adaptors)->subpictures);
198        pAdapt[i].CreateContext = xf86XvMCCreateContext;
199        pAdapt[i].DestroyContext = xf86XvMCDestroyContext;
200        pAdapt[i].CreateSurface = xf86XvMCCreateSurface;
201        pAdapt[i].DestroySurface = xf86XvMCDestroySurface;
202        pAdapt[i].CreateSubpicture = xf86XvMCCreateSubpicture;
203        pAdapt[i].DestroySubpicture = xf86XvMCDestroySubpicture;
204        adaptors++;
205    }
206
207    if (Success != XvMCScreenInit(pScreen, num_adaptors, pAdapt))
208        return FALSE;
209
210    return TRUE;
211}
212
213XF86MCAdaptorPtr
214xf86XvMCCreateAdaptorRec(void)
215{
216    return calloc(1, sizeof(XF86MCAdaptorRec));
217}
218
219void
220xf86XvMCDestroyAdaptorRec(XF86MCAdaptorPtr adaptor)
221{
222    free(adaptor);
223}
224