| File: | XvMC.c |
| Location: | line 510, column 5 |
| Description: | Value stored to 'magic' is never read |
| 1 | #ifdef HAVE_CONFIG_H1 |
| 2 | #include <config.h> |
| 3 | #endif |
| 4 | #include <stdio.h> |
| 5 | #include "XvMClibint.h" |
| 6 | #ifdef HAVE_SHMAT1 |
| 7 | #ifndef Lynx |
| 8 | #include <sys/ipc.h> |
| 9 | #include <sys/shm.h> |
| 10 | #else |
| 11 | #include <ipc.h> |
| 12 | #include <shm.h> |
| 13 | #endif /* Lynx */ |
| 14 | #endif /* HAVE_SHMAT */ |
| 15 | #include <unistd.h> |
| 16 | #include <sys/time.h> |
| 17 | #include <X11/extensions/Xext.h> |
| 18 | #include <X11/extensions/extutil.h> |
| 19 | #include <limits.h> |
| 20 | |
| 21 | static XExtensionInfo _xvmc_info_data; |
| 22 | static XExtensionInfo *xvmc_info = &_xvmc_info_data; |
| 23 | static const char *xvmc_extension_name = XvMCName"XVideo-MotionCompensation"; |
| 24 | |
| 25 | static const char *xvmc_error_list[] = |
| 26 | { |
| 27 | "BadContext", |
| 28 | "BadSurface", |
| 29 | "BadSubpicture" |
| 30 | }; |
| 31 | |
| 32 | static XEXT_GENERATE_CLOSE_DISPLAY (xvmc_close_display, xvmc_info)int xvmc_close_display (Display *dpy, XExtCodes *codes) { return XextRemoveDisplay (xvmc_info, dpy); } |
| 33 | |
| 34 | |
| 35 | static XEXT_GENERATE_ERROR_STRING (xvmc_error_string, xvmc_extension_name,char *xvmc_error_string (Display *dpy, int code, XExtCodes *codes , char *buf, int n) { code -= codes->first_error; if (code >= 0 && code < 3) { char tmp[256]; __builtin___snprintf_chk (tmp, sizeof(tmp), 0, __builtin_object_size (tmp, 2 > 1 ? 1 : 0), "%s.%d", xvmc_extension_name, code); XGetErrorDatabaseText (dpy, "XProtoError", tmp, xvmc_error_list[code], buf, n); return buf; } return (char *)0; } |
| 36 | XvMCNumErrors, xvmc_error_list)char *xvmc_error_string (Display *dpy, int code, XExtCodes *codes , char *buf, int n) { code -= codes->first_error; if (code >= 0 && code < 3) { char tmp[256]; __builtin___snprintf_chk (tmp, sizeof(tmp), 0, __builtin_object_size (tmp, 2 > 1 ? 1 : 0), "%s.%d", xvmc_extension_name, code); XGetErrorDatabaseText (dpy, "XProtoError", tmp, xvmc_error_list[code], buf, n); return buf; } return (char *)0; } |
| 37 | |
| 38 | |
| 39 | static XExtensionHooks xvmc_extension_hooks = { |
| 40 | NULL((void*)0), /* create_gc */ |
| 41 | NULL((void*)0), /* copy_gc */ |
| 42 | NULL((void*)0), /* flush_gc */ |
| 43 | NULL((void*)0), /* free_gc */ |
| 44 | NULL((void*)0), /* create_font */ |
| 45 | NULL((void*)0), /* free_font */ |
| 46 | xvmc_close_display, /* close_display */ |
| 47 | NULL((void*)0), /* wire_to_event */ |
| 48 | NULL((void*)0), /* event_to_wire */ |
| 49 | NULL((void*)0), /* error */ |
| 50 | xvmc_error_string /* error_string */ |
| 51 | }; |
| 52 | |
| 53 | static XEXT_GENERATE_FIND_DISPLAY (xvmc_find_display, xvmc_info,XExtDisplayInfo *xvmc_find_display (Display *dpy) { XExtDisplayInfo *dpyinfo; if (!xvmc_info) { if (!(xvmc_info = XextCreateExtension ())) return ((void*)0); } if (!(dpyinfo = XextFindDisplay (xvmc_info , dpy))) dpyinfo = XextAddDisplay (xvmc_info,dpy,xvmc_extension_name ,&xvmc_extension_hooks,0,((void*)0)); return dpyinfo; } |
| 54 | xvmc_extension_name,XExtDisplayInfo *xvmc_find_display (Display *dpy) { XExtDisplayInfo *dpyinfo; if (!xvmc_info) { if (!(xvmc_info = XextCreateExtension ())) return ((void*)0); } if (!(dpyinfo = XextFindDisplay (xvmc_info , dpy))) dpyinfo = XextAddDisplay (xvmc_info,dpy,xvmc_extension_name ,&xvmc_extension_hooks,0,((void*)0)); return dpyinfo; } |
| 55 | &xvmc_extension_hooks,XExtDisplayInfo *xvmc_find_display (Display *dpy) { XExtDisplayInfo *dpyinfo; if (!xvmc_info) { if (!(xvmc_info = XextCreateExtension ())) return ((void*)0); } if (!(dpyinfo = XextFindDisplay (xvmc_info , dpy))) dpyinfo = XextAddDisplay (xvmc_info,dpy,xvmc_extension_name ,&xvmc_extension_hooks,0,((void*)0)); return dpyinfo; } |
| 56 | XvMCNumEvents, NULL)XExtDisplayInfo *xvmc_find_display (Display *dpy) { XExtDisplayInfo *dpyinfo; if (!xvmc_info) { if (!(xvmc_info = XextCreateExtension ())) return ((void*)0); } if (!(dpyinfo = XextFindDisplay (xvmc_info , dpy))) dpyinfo = XextAddDisplay (xvmc_info,dpy,xvmc_extension_name ,&xvmc_extension_hooks,0,((void*)0)); return dpyinfo; } |
| 57 | |
| 58 | Boolint XvMCQueryExtension (Display *dpy, int *event_basep, int *error_basep) |
| 59 | { |
| 60 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 61 | |
| 62 | if (XextHasExtension(info)((info) && ((info)->codes))) { |
| 63 | *event_basep = info->codes->first_event; |
| 64 | *error_basep = info->codes->first_error; |
| 65 | return True1; |
| 66 | } else { |
| 67 | return False0; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | Statusint XvMCQueryVersion (Display *dpy, int *major, int *minor) |
| 72 | { |
| 73 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 74 | xvmcQueryVersionReply rep; |
| 75 | xvmcQueryVersionReq *req; |
| 76 | |
| 77 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 78 | |
| 79 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 80 | XvMCGetReq (QueryVersion, req)if ((dpy->bufptr + sizeof(xvmcQueryVersionReq)) > dpy-> bufmax) _XFlush(dpy); req = (xvmcQueryVersionReq *)(dpy->last_req = dpy->bufptr); req->reqType = info->codes->major_opcode ; req->xvmcReqType = 0; req->length = sizeof(xvmcQueryVersionReq )>>2; dpy->bufptr += sizeof(xvmcQueryVersionReq); dpy ->request++; |
| 81 | if (!_XReply (dpy, (xReply *) &rep, 0, xTrue1)) { |
| 82 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 83 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 84 | return BadImplementation17; |
| 85 | } |
| 86 | *major = rep.major; |
| 87 | *minor = rep.minor; |
| 88 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 89 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 90 | return Success0; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | XvMCSurfaceInfo * XvMCListSurfaceTypes(Display *dpy, XvPortID port, int *num) |
| 95 | { |
| 96 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 97 | xvmcListSurfaceTypesReply rep; |
| 98 | xvmcListSurfaceTypesReq *req; |
| 99 | XvMCSurfaceInfo *surface_info = NULL((void*)0); |
| 100 | |
| 101 | *num = 0; |
| 102 | |
| 103 | XvMCCheckExtension (dpy, info, NULL)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return ((void*)0); }; |
| 104 | |
| 105 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 106 | XvMCGetReq (ListSurfaceTypes, req)if ((dpy->bufptr + sizeof(xvmcListSurfaceTypesReq)) > dpy ->bufmax) _XFlush(dpy); req = (xvmcListSurfaceTypesReq *)( dpy->last_req = dpy->bufptr); req->reqType = info-> codes->major_opcode; req->xvmcReqType = 1; req->length = sizeof(xvmcListSurfaceTypesReq)>>2; dpy->bufptr += sizeof(xvmcListSurfaceTypesReq); dpy->request++; |
| 107 | req->port = port; |
| 108 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 109 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 110 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 111 | return NULL((void*)0); |
| 112 | } |
| 113 | |
| 114 | if(rep.num > 0) { |
| 115 | if (rep.num < (INT_MAX2147483647 / sizeof(XvMCSurfaceInfo))) |
| 116 | surface_info = Xmalloc(rep.num * sizeof(XvMCSurfaceInfo))malloc(((rep.num * sizeof(XvMCSurfaceInfo)) == 0 ? 1 : (rep.num * sizeof(XvMCSurfaceInfo)))); |
| 117 | |
| 118 | if(surface_info) { |
| 119 | xvmcSurfaceInfo sinfo; |
| 120 | int i; |
| 121 | |
| 122 | *num = rep.num; |
| 123 | |
| 124 | for(i = 0; i < rep.num; i++) { |
| 125 | _XRead(dpy, (char*)&sinfo, sizeof(xvmcSurfaceInfo)); |
| 126 | surface_info[i].surface_type_id = sinfo.surface_type_id; |
| 127 | surface_info[i].chroma_format = sinfo.chroma_format; |
| 128 | surface_info[i].max_width = sinfo.max_width; |
| 129 | surface_info[i].max_height = sinfo.max_height; |
| 130 | surface_info[i].subpicture_max_width = |
| 131 | sinfo.subpicture_max_width; |
| 132 | surface_info[i].subpicture_max_height = |
| 133 | sinfo.subpicture_max_height; |
| 134 | surface_info[i].mc_type = sinfo.mc_type; |
| 135 | surface_info[i].flags = sinfo.flags; |
| 136 | } |
| 137 | } else |
| 138 | _XEatDataWords(dpy, rep.length); |
| 139 | } |
| 140 | |
| 141 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 142 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 143 | return surface_info; |
| 144 | } |
| 145 | |
| 146 | |
| 147 | XvImageFormatValues * XvMCListSubpictureTypes ( |
| 148 | Display * dpy, |
| 149 | XvPortID port, |
| 150 | int surface_type_id, |
| 151 | int *count_return |
| 152 | ) |
| 153 | { |
| 154 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 155 | xvmcListSubpictureTypesReply rep; |
| 156 | xvmcListSubpictureTypesReq *req; |
| 157 | XvImageFormatValues *ret = NULL((void*)0); |
| 158 | |
| 159 | |
| 160 | *count_return = 0; |
| 161 | |
| 162 | XvMCCheckExtension (dpy, info, NULL)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return ((void*)0); }; |
| 163 | |
| 164 | |
| 165 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 166 | XvMCGetReq (ListSubpictureTypes, req)if ((dpy->bufptr + sizeof(xvmcListSubpictureTypesReq)) > dpy->bufmax) _XFlush(dpy); req = (xvmcListSubpictureTypesReq *)(dpy->last_req = dpy->bufptr); req->reqType = info ->codes->major_opcode; req->xvmcReqType = 8; req-> length = sizeof(xvmcListSubpictureTypesReq)>>2; dpy-> bufptr += sizeof(xvmcListSubpictureTypesReq); dpy->request ++; |
| 167 | req->port = port; |
| 168 | req->surface_type_id = surface_type_id; |
| 169 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 170 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 171 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 172 | return NULL((void*)0); |
| 173 | } |
| 174 | |
| 175 | if(rep.num > 0) { |
| 176 | if (rep.num < (INT_MAX2147483647 / sizeof(XvImageFormatValues))) |
| 177 | ret = Xmalloc(rep.num * sizeof(XvImageFormatValues))malloc(((rep.num * sizeof(XvImageFormatValues)) == 0 ? 1 : (rep .num * sizeof(XvImageFormatValues)))); |
| 178 | |
| 179 | if(ret) { |
| 180 | xvImageFormatInfo Info; |
| 181 | int i; |
| 182 | |
| 183 | *count_return = rep.num; |
| 184 | |
| 185 | for(i = 0; i < rep.num; i++) { |
| 186 | _XRead(dpy, (char*)(&Info), sz_xvImageFormatInfo128); |
| 187 | ret[i].id = Info.id; |
| 188 | ret[i].type = Info.type; |
| 189 | ret[i].byte_order = Info.byte_order; |
| 190 | memcpy(&(ret[i].guid[0]), &(Info.guid[0]), 16)__builtin___memcpy_chk (&(ret[i].guid[0]), &(Info.guid [0]), 16, __builtin_object_size (&(ret[i].guid[0]), 0)); |
| 191 | ret[i].bits_per_pixel = Info.bpp; |
| 192 | ret[i].format = Info.format; |
| 193 | ret[i].num_planes = Info.num_planes; |
| 194 | ret[i].depth = Info.depth; |
| 195 | ret[i].red_mask = Info.red_mask; |
| 196 | ret[i].green_mask = Info.green_mask; |
| 197 | ret[i].blue_mask = Info.blue_mask; |
| 198 | ret[i].y_sample_bits = Info.y_sample_bits; |
| 199 | ret[i].u_sample_bits = Info.u_sample_bits; |
| 200 | ret[i].v_sample_bits = Info.v_sample_bits; |
| 201 | ret[i].horz_y_period = Info.horz_y_period; |
| 202 | ret[i].horz_u_period = Info.horz_u_period; |
| 203 | ret[i].horz_v_period = Info.horz_v_period; |
| 204 | ret[i].vert_y_period = Info.vert_y_period; |
| 205 | ret[i].vert_u_period = Info.vert_u_period; |
| 206 | ret[i].vert_v_period = Info.vert_v_period; |
| 207 | memcpy(&(ret[i].component_order[0]), &(Info.comp_order[0]), 32)__builtin___memcpy_chk (&(ret[i].component_order[0]), & (Info.comp_order[0]), 32, __builtin_object_size (&(ret[i] .component_order[0]), 0)); |
| 208 | ret[i].scanline_order = Info.scanline_order; |
| 209 | } |
| 210 | } else |
| 211 | _XEatDataWords(dpy, rep.length); |
| 212 | } |
| 213 | |
| 214 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 215 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 216 | return ret; |
| 217 | } |
| 218 | |
| 219 | |
| 220 | /****************************************************************** |
| 221 | These are intended as a protocol interface to be used by direct |
| 222 | rendering libraries. They are not intended to be client viewable |
| 223 | functions. These will stay in place until we have a mechanism in |
| 224 | place similar to that of OpenGL with an libXvMCcore library. |
| 225 | *******************************************************************/ |
| 226 | |
| 227 | /* |
| 228 | _xvmc_create_context - |
| 229 | |
| 230 | Pass in the context with the surface_type_id, width, height, |
| 231 | port and flags filled out. This function will fill out the |
| 232 | context_id and update the width, height and flags field. |
| 233 | The server may return implementation-specific information |
| 234 | back in the priv_data. The size of that information will |
| 235 | an array of priv_count CARD32s. This data is allocated by |
| 236 | this function. If returned, the caller is responsible for |
| 237 | freeing it! Generally, such information is only returned if |
| 238 | an XVMC_DIRECT context was specified. |
| 239 | */ |
| 240 | |
| 241 | |
| 242 | Statusint _xvmc_create_context ( |
| 243 | Display *dpy, |
| 244 | XvMCContext *context, |
| 245 | int *priv_count, |
| 246 | CARD32 **priv_data |
| 247 | ) |
| 248 | { |
| 249 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 250 | xvmcCreateContextReply rep; |
| 251 | xvmcCreateContextReq *req; |
| 252 | |
| 253 | *priv_count = 0; |
| 254 | *priv_data = NULL((void*)0); |
| 255 | |
| 256 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 257 | |
| 258 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 259 | XvMCGetReq (CreateContext, req)if ((dpy->bufptr + sizeof(xvmcCreateContextReq)) > dpy-> bufmax) _XFlush(dpy); req = (xvmcCreateContextReq *)(dpy-> last_req = dpy->bufptr); req->reqType = info->codes-> major_opcode; req->xvmcReqType = 2; req->length = sizeof (xvmcCreateContextReq)>>2; dpy->bufptr += sizeof(xvmcCreateContextReq ); dpy->request++; |
| 260 | context->context_id = XAllocID(dpy)((*((_XPrivDisplay)(dpy))->resource_alloc)((dpy))); |
| 261 | req->context_id = context->context_id; |
| 262 | req->port = context->port; |
| 263 | req->surface_type_id = context->surface_type_id; |
| 264 | req->width = context->width; |
| 265 | req->height = context->height; |
| 266 | req->flags = context->flags; |
| 267 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 268 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 269 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 270 | return BadImplementation17; |
| 271 | } |
| 272 | context->width = rep.width_actual; |
| 273 | context->height = rep.height_actual; |
| 274 | context->flags = rep.flags_return; |
| 275 | |
| 276 | if(rep.length) { |
| 277 | if (rep.length < (INT_MAX2147483647 >> 2)) |
| 278 | *priv_data = Xmalloc(rep.length << 2)malloc(((rep.length << 2) == 0 ? 1 : (rep.length << 2))); |
| 279 | if(*priv_data) { |
| 280 | _XRead(dpy, (char*)(*priv_data), rep.length << 2); |
| 281 | *priv_count = rep.length; |
| 282 | } else |
| 283 | _XEatDataWords(dpy, rep.length); |
| 284 | } |
| 285 | |
| 286 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 287 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 288 | return Success0; |
| 289 | } |
| 290 | |
| 291 | Statusint _xvmc_destroy_context ( |
| 292 | Display *dpy, |
| 293 | XvMCContext *context |
| 294 | ) |
| 295 | { |
| 296 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 297 | xvmcDestroyContextReq *req; |
| 298 | |
| 299 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 300 | |
| 301 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 302 | XvMCGetReq (DestroyContext, req)if ((dpy->bufptr + sizeof(xvmcDestroyContextReq)) > dpy ->bufmax) _XFlush(dpy); req = (xvmcDestroyContextReq *)(dpy ->last_req = dpy->bufptr); req->reqType = info->codes ->major_opcode; req->xvmcReqType = 3; req->length = sizeof (xvmcDestroyContextReq)>>2; dpy->bufptr += sizeof(xvmcDestroyContextReq ); dpy->request++; |
| 303 | req->context_id = context->context_id; |
| 304 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 305 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 306 | return Success0; |
| 307 | } |
| 308 | |
| 309 | |
| 310 | /* |
| 311 | _xvmc_create_surface - |
| 312 | |
| 313 | Pass the context and this function will fill out all the |
| 314 | information in the surface. |
| 315 | The server may return implementation-specific information |
| 316 | back in the priv_data. The size of that information will |
| 317 | an array of priv_count CARD32s. This data is allocated by |
| 318 | this function. If returned, the caller is responsible for |
| 319 | freeing it! Generally, such information is returned only if |
| 320 | the context was a direct context. |
| 321 | |
| 322 | */ |
| 323 | |
| 324 | Statusint _xvmc_create_surface ( |
| 325 | Display *dpy, |
| 326 | XvMCContext *context, |
| 327 | XvMCSurface *surface, |
| 328 | int *priv_count, |
| 329 | CARD32 **priv_data |
| 330 | ) |
| 331 | { |
| 332 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 333 | xvmcCreateSurfaceReply rep; |
| 334 | xvmcCreateSurfaceReq *req; |
| 335 | |
| 336 | *priv_count = 0; |
| 337 | *priv_data = NULL((void*)0); |
| 338 | |
| 339 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 340 | |
| 341 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 342 | XvMCGetReq (CreateSurface, req)if ((dpy->bufptr + sizeof(xvmcCreateSurfaceReq)) > dpy-> bufmax) _XFlush(dpy); req = (xvmcCreateSurfaceReq *)(dpy-> last_req = dpy->bufptr); req->reqType = info->codes-> major_opcode; req->xvmcReqType = 4; req->length = sizeof (xvmcCreateSurfaceReq)>>2; dpy->bufptr += sizeof(xvmcCreateSurfaceReq ); dpy->request++; |
| 343 | |
| 344 | surface->surface_id = XAllocID(dpy)((*((_XPrivDisplay)(dpy))->resource_alloc)((dpy))); |
| 345 | surface->context_id = context->context_id; |
| 346 | surface->surface_type_id = context->surface_type_id; |
| 347 | surface->width = context->width; |
| 348 | surface->height = context->height; |
| 349 | |
| 350 | req->surface_id = surface->surface_id; |
| 351 | req->context_id = surface->context_id; |
| 352 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 353 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 354 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 355 | return BadImplementation17; |
| 356 | } |
| 357 | |
| 358 | if(rep.length) { |
| 359 | if (rep.length < (INT_MAX2147483647 >> 2)) |
| 360 | *priv_data = Xmalloc(rep.length << 2)malloc(((rep.length << 2) == 0 ? 1 : (rep.length << 2))); |
| 361 | if(*priv_data) { |
| 362 | _XRead(dpy, (char*)(*priv_data), rep.length << 2); |
| 363 | *priv_count = rep.length; |
| 364 | } else |
| 365 | _XEatDataWords(dpy, rep.length); |
| 366 | } |
| 367 | |
| 368 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 369 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 370 | return Success0; |
| 371 | } |
| 372 | |
| 373 | Statusint _xvmc_destroy_surface ( |
| 374 | Display *dpy, |
| 375 | XvMCSurface *surface |
| 376 | ) |
| 377 | { |
| 378 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 379 | xvmcDestroySurfaceReq *req; |
| 380 | |
| 381 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 382 | |
| 383 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 384 | XvMCGetReq (DestroySurface, req)if ((dpy->bufptr + sizeof(xvmcDestroySurfaceReq)) > dpy ->bufmax) _XFlush(dpy); req = (xvmcDestroySurfaceReq *)(dpy ->last_req = dpy->bufptr); req->reqType = info->codes ->major_opcode; req->xvmcReqType = 5; req->length = sizeof (xvmcDestroySurfaceReq)>>2; dpy->bufptr += sizeof(xvmcDestroySurfaceReq ); dpy->request++; |
| 385 | req->surface_id = surface->surface_id; |
| 386 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 387 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 388 | return Success0; |
| 389 | } |
| 390 | |
| 391 | /* |
| 392 | _xvmc_create_subpicture - |
| 393 | |
| 394 | Pass the subpicture with the width, height and xvimage_id filled |
| 395 | out and this function will fill out everything else in the |
| 396 | subpicture as well as adjust the width and height if needed. |
| 397 | The server may return implementation-specific information |
| 398 | back in the priv_data. The size of that information will |
| 399 | an array of priv_count CARD32s. This data is allocated by |
| 400 | this function. If returned, the caller is responsible for |
| 401 | freeing it! Generally, such information is returned only if |
| 402 | the context was a direct context. |
| 403 | |
| 404 | */ |
| 405 | |
| 406 | Statusint _xvmc_create_subpicture ( |
| 407 | Display *dpy, |
| 408 | XvMCContext *context, |
| 409 | XvMCSubpicture *subpicture, |
| 410 | int *priv_count, |
| 411 | CARD32 **priv_data |
| 412 | ) |
| 413 | { |
| 414 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 415 | xvmcCreateSubpictureReply rep; |
| 416 | xvmcCreateSubpictureReq *req; |
| 417 | |
| 418 | *priv_count = 0; |
| 419 | *priv_data = NULL((void*)0); |
| 420 | |
| 421 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 422 | |
| 423 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 424 | XvMCGetReq (CreateSubpicture, req)if ((dpy->bufptr + sizeof(xvmcCreateSubpictureReq)) > dpy ->bufmax) _XFlush(dpy); req = (xvmcCreateSubpictureReq *)( dpy->last_req = dpy->bufptr); req->reqType = info-> codes->major_opcode; req->xvmcReqType = 6; req->length = sizeof(xvmcCreateSubpictureReq)>>2; dpy->bufptr += sizeof(xvmcCreateSubpictureReq); dpy->request++; |
| 425 | |
| 426 | subpicture->subpicture_id = XAllocID(dpy)((*((_XPrivDisplay)(dpy))->resource_alloc)((dpy))); |
| 427 | subpicture->context_id = context->context_id; |
| 428 | |
| 429 | req->subpicture_id = subpicture->subpicture_id; |
| 430 | req->context_id = subpicture->context_id; |
| 431 | req->xvimage_id = subpicture->xvimage_id; |
| 432 | req->width = subpicture->width; |
| 433 | req->height = subpicture->height; |
| 434 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 435 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 436 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 437 | return BadImplementation17; |
| 438 | } |
| 439 | |
| 440 | subpicture->width = rep.width_actual; |
| 441 | subpicture->height = rep.height_actual; |
| 442 | subpicture->num_palette_entries = rep.num_palette_entries; |
| 443 | subpicture->entry_bytes = rep.entry_bytes; |
| 444 | subpicture->component_order[0] = rep.component_order[0]; |
| 445 | subpicture->component_order[1] = rep.component_order[1]; |
| 446 | subpicture->component_order[2] = rep.component_order[2]; |
| 447 | subpicture->component_order[3] = rep.component_order[3]; |
| 448 | |
| 449 | if(rep.length) { |
| 450 | if (rep.length < (INT_MAX2147483647 >> 2)) |
| 451 | *priv_data = Xmalloc(rep.length << 2)malloc(((rep.length << 2) == 0 ? 1 : (rep.length << 2))); |
| 452 | if(*priv_data) { |
| 453 | _XRead(dpy, (char*)(*priv_data), rep.length << 2); |
| 454 | *priv_count = rep.length; |
| 455 | } else |
| 456 | _XEatDataWords(dpy, rep.length); |
| 457 | } |
| 458 | |
| 459 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 460 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 461 | return Success0; |
| 462 | } |
| 463 | |
| 464 | Statusint _xvmc_destroy_subpicture( |
| 465 | Display *dpy, |
| 466 | XvMCSubpicture *subpicture |
| 467 | ) |
| 468 | { |
| 469 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 470 | xvmcDestroySubpictureReq *req; |
| 471 | |
| 472 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 473 | |
| 474 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 475 | XvMCGetReq (DestroySubpicture, req)if ((dpy->bufptr + sizeof(xvmcDestroySubpictureReq)) > dpy ->bufmax) _XFlush(dpy); req = (xvmcDestroySubpictureReq *) (dpy->last_req = dpy->bufptr); req->reqType = info-> codes->major_opcode; req->xvmcReqType = 7; req->length = sizeof(xvmcDestroySubpictureReq)>>2; dpy->bufptr += sizeof(xvmcDestroySubpictureReq); dpy->request++; |
| 476 | req->subpicture_id = subpicture->subpicture_id; |
| 477 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 478 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 479 | return Success0; |
| 480 | } |
| 481 | |
| 482 | Statusint XvMCGetDRInfo(Display *dpy, XvPortID port, |
| 483 | char **name, char **busID, |
| 484 | int *major, int *minor, |
| 485 | int *patchLevel, |
| 486 | int *isLocal) |
| 487 | { |
| 488 | XExtDisplayInfo *info = xvmc_find_display(dpy); |
| 489 | xvmcGetDRInfoReply rep; |
| 490 | xvmcGetDRInfoReq *req; |
| 491 | CARD32 magic; |
| 492 | |
| 493 | #ifdef HAVE_SHMAT1 |
| 494 | volatile CARD32 *shMem; |
| 495 | struct timezone here; |
| 496 | struct timeval now; |
| 497 | here.tz_minuteswest = 0; |
| 498 | here.tz_dsttime = 0; |
| 499 | #endif |
| 500 | |
| 501 | *name = NULL((void*)0); |
| 502 | *busID = NULL((void*)0); |
| 503 | |
| 504 | XvMCCheckExtension (dpy, info, BadImplementation)if (!((info) && ((info)->codes))) { XMissingExtension (dpy, xvmc_extension_name); return 17; }; |
| 505 | |
| 506 | LockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 507 | XvMCGetReq (GetDRInfo, req)if ((dpy->bufptr + sizeof(xvmcGetDRInfoReq)) > dpy-> bufmax) _XFlush(dpy); req = (xvmcGetDRInfoReq *)(dpy->last_req = dpy->bufptr); req->reqType = info->codes->major_opcode ; req->xvmcReqType = 9; req->length = sizeof(xvmcGetDRInfoReq )>>2; dpy->bufptr += sizeof(xvmcGetDRInfoReq); dpy-> request++; |
| 508 | |
| 509 | req->port = port; |
| 510 | magic = 0; |
Value stored to 'magic' is never read | |
| 511 | req->magic = 0; |
| 512 | #ifdef HAVE_SHMAT1 |
| 513 | req->shmKey = shmget(IPC_PRIVATE((key_t)0), 1024, IPC_CREAT001000 | 0600); |
| 514 | |
| 515 | /* |
| 516 | * We fill a shared memory page with a repetitive pattern. If the |
| 517 | * X server can read this pattern, we probably have a local connection. |
| 518 | * Note that we can trigger the remote X server to read any shared |
| 519 | * page on the remote machine, so we shouldn't be able to guess and verify |
| 520 | * any complicated data on those pages. Thats the explanation of this |
| 521 | * otherwise stupid-looking pattern algorithm. |
| 522 | */ |
| 523 | |
| 524 | if (req->shmKey >= 0) { |
| 525 | shMem = (CARD32 *) shmat(req->shmKey, NULL((void*)0), 0); |
| 526 | shmctl( req->shmKey, IPC_RMID0, NULL((void*)0)); |
| 527 | if ( shMem ) { |
| 528 | |
| 529 | register volatile CARD32 *shMemC = shMem; |
| 530 | register int i; |
| 531 | |
| 532 | gettimeofday( &now, &here); |
| 533 | magic = now.tv_usec & 0x000FFFFF; |
| 534 | req->magic = magic; |
| 535 | i = 1024 / sizeof(CARD32); |
| 536 | while(i--) { |
| 537 | *shMemC++ = magic; |
| 538 | magic = ~magic; |
| 539 | } |
| 540 | } else { |
| 541 | req->shmKey = -1; |
| 542 | } |
| 543 | } |
| 544 | #else |
| 545 | req->shmKey = 0; |
| 546 | #endif |
| 547 | if (!_XReply (dpy, (xReply *) &rep, 0, xFalse0)) { |
| 548 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 549 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 550 | #ifdef HAVE_SHMAT1 |
| 551 | if ( req->shmKey >= 0) { |
| 552 | shmdt( (const void *) shMem ); |
| 553 | } |
| 554 | #endif |
| 555 | return -1; |
| 556 | } |
| 557 | #ifdef HAVE_SHMAT1 |
| 558 | shmdt( (const void *) shMem ); |
| 559 | #endif |
| 560 | |
| 561 | if (rep.length > 0) { |
| 562 | unsigned long realSize = 0; |
| 563 | char *tmpBuf = NULL((void*)0); |
| 564 | |
| 565 | if ((rep.length < (INT_MAX2147483647 >> 2)) && |
| 566 | /* protect against overflow in strncpy below */ |
| 567 | (rep.nameLen + rep.busIDLen > rep.nameLen)) { |
| 568 | realSize = rep.length << 2; |
| 569 | if (realSize >= (rep.nameLen + rep.busIDLen)) { |
| 570 | tmpBuf = Xmalloc(realSize)malloc(((realSize) == 0 ? 1 : (realSize))); |
| 571 | *name = Xmalloc(rep.nameLen)malloc(((rep.nameLen) == 0 ? 1 : (rep.nameLen))); |
| 572 | *busID = Xmalloc(rep.busIDLen)malloc(((rep.busIDLen) == 0 ? 1 : (rep.busIDLen))); |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | if (*name && *busID && tmpBuf) { |
| 577 | _XRead(dpy, tmpBuf, realSize); |
| 578 | strncpy(*name,tmpBuf,rep.nameLen)__builtin___strncpy_chk (*name, tmpBuf, rep.nameLen, __builtin_object_size (*name, 2 > 1 ? 1 : 0)); |
| 579 | (*name)[rep.nameLen - 1] = '\0'; |
| 580 | strncpy(*busID,tmpBuf+rep.nameLen,rep.busIDLen)__builtin___strncpy_chk (*busID, tmpBuf+rep.nameLen, rep.busIDLen , __builtin_object_size (*busID, 2 > 1 ? 1 : 0)); |
| 581 | (*busID)[rep.busIDLen - 1] = '\0'; |
| 582 | XFree(tmpBuf); |
| 583 | } else { |
| 584 | XFree(*name); |
| 585 | *name = NULL((void*)0); |
| 586 | XFree(*busID); |
| 587 | *busID = NULL((void*)0); |
| 588 | XFree(tmpBuf); |
| 589 | |
| 590 | _XEatDataWords(dpy, rep.length); |
| 591 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 592 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 593 | return -1; |
| 594 | |
| 595 | } |
| 596 | } |
| 597 | |
| 598 | UnlockDisplay (dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 599 | SyncHandle ()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 600 | *major = rep.major; |
| 601 | *minor = rep.minor; |
| 602 | *patchLevel = rep.patchLevel; |
| 603 | *isLocal = (req->shmKey > 0) ? rep.isLocal : 1; |
| 604 | return (rep.length > 0) ? Success0 : BadImplementation17; |
| 605 | } |
| 606 |