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Diffstat (limited to 'src/XvMC.c')
-rw-r--r--src/XvMC.c543
1 files changed, 267 insertions, 276 deletions
diff --git a/src/XvMC.c b/src/XvMC.c
index e0a1fe2..262469a 100644
--- a/src/XvMC.c
+++ b/src/XvMC.c
@@ -22,40 +22,37 @@ static XExtensionInfo _xvmc_info_data;
static XExtensionInfo *xvmc_info = &_xvmc_info_data;
static const char *xvmc_extension_name = XvMCName;
-static const char *xvmc_error_list[] =
-{
- "BadContext",
- "BadSurface",
- "BadSubpicture"
+static const char *xvmc_error_list[] = {
+ "BadContext",
+ "BadSurface",
+ "BadSubpicture"
};
-static XEXT_GENERATE_CLOSE_DISPLAY (xvmc_close_display, xvmc_info)
-
-
-static XEXT_GENERATE_ERROR_STRING (xvmc_error_string, xvmc_extension_name,
- XvMCNumErrors, xvmc_error_list)
-
+static XEXT_GENERATE_CLOSE_DISPLAY(xvmc_close_display, xvmc_info)
+static XEXT_GENERATE_ERROR_STRING(xvmc_error_string, xvmc_extension_name,
+ XvMCNumErrors, xvmc_error_list)
static XExtensionHooks xvmc_extension_hooks = {
- NULL, /* create_gc */
- NULL, /* copy_gc */
- NULL, /* flush_gc */
- NULL, /* free_gc */
- NULL, /* create_font */
- NULL, /* free_font */
- xvmc_close_display, /* close_display */
- NULL, /* wire_to_event */
- NULL, /* event_to_wire */
- NULL, /* error */
- xvmc_error_string /* error_string */
+ NULL, /* create_gc */
+ NULL, /* copy_gc */
+ NULL, /* flush_gc */
+ NULL, /* free_gc */
+ NULL, /* create_font */
+ NULL, /* free_font */
+ xvmc_close_display, /* close_display */
+ NULL, /* wire_to_event */
+ NULL, /* event_to_wire */
+ NULL, /* error */
+ xvmc_error_string /* error_string */
};
-static XEXT_GENERATE_FIND_DISPLAY (xvmc_find_display, xvmc_info,
- xvmc_extension_name,
- &xvmc_extension_hooks,
- XvMCNumEvents, NULL)
+static XEXT_GENERATE_FIND_DISPLAY(xvmc_find_display, xvmc_info,
+ xvmc_extension_name,
+ &xvmc_extension_hooks,
+ XvMCNumEvents, NULL)
-Bool XvMCQueryExtension (Display *dpy, int *event_basep, int *error_basep)
+Bool
+XvMCQueryExtension(Display *dpy, int *event_basep, int *error_basep)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
@@ -63,35 +60,37 @@ Bool XvMCQueryExtension (Display *dpy, int *event_basep, int *error_basep)
*event_basep = info->codes->first_event;
*error_basep = info->codes->first_error;
return True;
- } else {
+ }
+ else {
return False;
}
}
-Status XvMCQueryVersion (Display *dpy, int *major, int *minor)
+Status
+XvMCQueryVersion(Display *dpy, int *major, int *minor)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcQueryVersionReply rep;
- xvmcQueryVersionReq *req;
+ xvmcQueryVersionReq *req;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (QueryVersion, req);
- if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ LockDisplay(dpy);
+ XvMCGetReq(QueryVersion, req);
+ if (!_XReply(dpy, (xReply *) &rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return BadImplementation;
}
*major = rep.major;
*minor = rep.minor;
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-
-XvMCSurfaceInfo * XvMCListSurfaceTypes(Display *dpy, XvPortID port, int *num)
+XvMCSurfaceInfo *
+XvMCListSurfaceTypes(Display *dpy, XvPortID port, int *num)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcListSurfaceTypesReply rep;
@@ -100,123 +99,120 @@ XvMCSurfaceInfo * XvMCListSurfaceTypes(Display *dpy, XvPortID port, int *num)
*num = 0;
- XvMCCheckExtension (dpy, info, NULL);
+ XvMCCheckExtension(dpy, info, NULL);
- LockDisplay (dpy);
- XvMCGetReq (ListSurfaceTypes, req);
+ LockDisplay(dpy);
+ XvMCGetReq(ListSurfaceTypes, req);
req->port = port;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return NULL;
}
- if(rep.num > 0) {
+ if (rep.num > 0) {
if (rep.num < (INT_MAX / sizeof(XvMCSurfaceInfo)))
surface_info = Xmalloc(rep.num * sizeof(XvMCSurfaceInfo));
- if(surface_info) {
- xvmcSurfaceInfo sinfo;
- CARD32 i;
-
- *num = rep.num;
-
- for(i = 0; i < rep.num; i++) {
- _XRead(dpy, (char*)&sinfo, sizeof(xvmcSurfaceInfo));
- surface_info[i].surface_type_id = sinfo.surface_type_id;
- surface_info[i].chroma_format = sinfo.chroma_format;
- surface_info[i].max_width = sinfo.max_width;
- surface_info[i].max_height = sinfo.max_height;
- surface_info[i].subpicture_max_width =
- sinfo.subpicture_max_width;
- surface_info[i].subpicture_max_height =
- sinfo.subpicture_max_height;
- surface_info[i].mc_type = sinfo.mc_type;
- surface_info[i].flags = sinfo.flags;
- }
- } else
- _XEatDataWords(dpy, rep.length);
+ if (surface_info) {
+ xvmcSurfaceInfo sinfo;
+ CARD32 i;
+
+ *num = rep.num;
+
+ for (i = 0; i < rep.num; i++) {
+ _XRead(dpy, (char *) &sinfo, sizeof(xvmcSurfaceInfo));
+ surface_info[i].surface_type_id = sinfo.surface_type_id;
+ surface_info[i].chroma_format = sinfo.chroma_format;
+ surface_info[i].max_width = sinfo.max_width;
+ surface_info[i].max_height = sinfo.max_height;
+ surface_info[i].subpicture_max_width =
+ sinfo.subpicture_max_width;
+ surface_info[i].subpicture_max_height =
+ sinfo.subpicture_max_height;
+ surface_info[i].mc_type = sinfo.mc_type;
+ surface_info[i].flags = sinfo.flags;
+ }
+ }
+ else
+ _XEatDataWords(dpy, rep.length);
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return surface_info;
}
-
-XvImageFormatValues * XvMCListSubpictureTypes (
- Display * dpy,
- XvPortID port,
- int surface_type_id,
- int *count_return
-)
+XvImageFormatValues *
+XvMCListSubpictureTypes(Display *dpy,
+ XvPortID port,
+ int surface_type_id,
+ int *count_return)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcListSubpictureTypesReply rep;
xvmcListSubpictureTypesReq *req;
XvImageFormatValues *ret = NULL;
-
*count_return = 0;
- XvMCCheckExtension (dpy, info, NULL);
-
+ XvMCCheckExtension(dpy, info, NULL);
- LockDisplay (dpy);
- XvMCGetReq (ListSubpictureTypes, req);
+ LockDisplay(dpy);
+ XvMCGetReq(ListSubpictureTypes, req);
req->port = port;
req->surface_type_id = surface_type_id;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return NULL;
}
- if(rep.num > 0) {
+ if (rep.num > 0) {
if (rep.num < (INT_MAX / sizeof(XvImageFormatValues)))
ret = Xmalloc(rep.num * sizeof(XvImageFormatValues));
- if(ret) {
+ if (ret) {
xvImageFormatInfo Info;
CARD32 i;
*count_return = rep.num;
- for(i = 0; i < rep.num; i++) {
- _XRead(dpy, (char*)(&Info), sz_xvImageFormatInfo);
- ret[i].id = Info.id;
- ret[i].type = Info.type;
- ret[i].byte_order = Info.byte_order;
- memcpy(&(ret[i].guid[0]), &(Info.guid[0]), 16);
- ret[i].bits_per_pixel = Info.bpp;
- ret[i].format = Info.format;
- ret[i].num_planes = Info.num_planes;
- ret[i].depth = Info.depth;
- ret[i].red_mask = Info.red_mask;
- ret[i].green_mask = Info.green_mask;
- ret[i].blue_mask = Info.blue_mask;
- ret[i].y_sample_bits = Info.y_sample_bits;
- ret[i].u_sample_bits = Info.u_sample_bits;
- ret[i].v_sample_bits = Info.v_sample_bits;
- ret[i].horz_y_period = Info.horz_y_period;
- ret[i].horz_u_period = Info.horz_u_period;
- ret[i].horz_v_period = Info.horz_v_period;
- ret[i].vert_y_period = Info.vert_y_period;
- ret[i].vert_u_period = Info.vert_u_period;
- ret[i].vert_v_period = Info.vert_v_period;
- memcpy(&(ret[i].component_order[0]), &(Info.comp_order[0]), 32);
- ret[i].scanline_order = Info.scanline_order;
+ for (i = 0; i < rep.num; i++) {
+ _XRead(dpy, (char *) (&Info), sz_xvImageFormatInfo);
+ ret[i].id = Info.id;
+ ret[i].type = Info.type;
+ ret[i].byte_order = Info.byte_order;
+ memcpy(&(ret[i].guid[0]), &(Info.guid[0]), 16);
+ ret[i].bits_per_pixel = Info.bpp;
+ ret[i].format = Info.format;
+ ret[i].num_planes = Info.num_planes;
+ ret[i].depth = Info.depth;
+ ret[i].red_mask = Info.red_mask;
+ ret[i].green_mask = Info.green_mask;
+ ret[i].blue_mask = Info.blue_mask;
+ ret[i].y_sample_bits = Info.y_sample_bits;
+ ret[i].u_sample_bits = Info.u_sample_bits;
+ ret[i].v_sample_bits = Info.v_sample_bits;
+ ret[i].horz_y_period = Info.horz_y_period;
+ ret[i].horz_u_period = Info.horz_u_period;
+ ret[i].horz_v_period = Info.horz_v_period;
+ ret[i].vert_y_period = Info.vert_y_period;
+ ret[i].vert_u_period = Info.vert_u_period;
+ ret[i].vert_v_period = Info.vert_v_period;
+ memcpy(&(ret[i].component_order[0]), &(Info.comp_order[0]), 32);
+ ret[i].scanline_order = Info.scanline_order;
}
- } else
- _XEatDataWords(dpy, rep.length);
+ }
+ else
+ _XEatDataWords(dpy, rep.length);
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return ret;
}
-
/******************************************************************
These are intended as a protocol interface to be used by direct
rendering libraries. They are not intended to be client viewable
@@ -238,13 +234,11 @@ XvImageFormatValues * XvMCListSubpictureTypes (
an XVMC_DIRECT context was specified.
*/
-
-Status _xvmc_create_context (
- Display *dpy,
- XvMCContext *context,
- int *priv_count,
- CARD32 **priv_data
-)
+Status
+_xvmc_create_context(Display *dpy,
+ XvMCContext *context,
+ int *priv_count,
+ CARD32 **priv_data)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcCreateContextReply rep;
@@ -253,10 +247,10 @@ Status _xvmc_create_context (
*priv_count = 0;
*priv_data = NULL;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (CreateContext, req);
+ LockDisplay(dpy);
+ XvMCGetReq(CreateContext, req);
context->context_id = XAllocID(dpy);
req->context_id = context->context_id;
req->port = context->port;
@@ -264,49 +258,47 @@ Status _xvmc_create_context (
req->width = context->width;
req->height = context->height;
req->flags = context->flags;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return BadImplementation;
}
context->width = rep.width_actual;
context->height = rep.height_actual;
context->flags = rep.flags_return;
- if(rep.length) {
- if (rep.length < (INT_MAX >> 2))
- *priv_data = Xmalloc(rep.length << 2);
- if(*priv_data) {
- _XRead(dpy, (char*)(*priv_data), rep.length << 2);
- *priv_count = rep.length;
- } else
- _XEatDataWords(dpy, rep.length);
+ if (rep.length) {
+ if (rep.length < (INT_MAX >> 2))
+ *priv_data = Xmalloc(rep.length << 2);
+ if (*priv_data) {
+ _XRead(dpy, (char *) (*priv_data), rep.length << 2);
+ *priv_count = rep.length;
+ }
+ else
+ _XEatDataWords(dpy, rep.length);
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-Status _xvmc_destroy_context (
- Display *dpy,
- XvMCContext *context
-)
+Status
+_xvmc_destroy_context(Display *dpy, XvMCContext *context)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcDestroyContextReq *req;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (DestroyContext, req);
+ LockDisplay(dpy);
+ XvMCGetReq(DestroyContext, req);
req->context_id = context->context_id;
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-
/*
_xvmc_create_surface -
@@ -321,13 +313,12 @@ Status _xvmc_destroy_context (
*/
-Status _xvmc_create_surface (
- Display *dpy,
- XvMCContext *context,
- XvMCSurface *surface,
- int *priv_count,
- CARD32 **priv_data
-)
+Status
+_xvmc_create_surface(Display *dpy,
+ XvMCContext *context,
+ XvMCSurface *surface,
+ int *priv_count,
+ CARD32 **priv_data)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcCreateSurfaceReply rep;
@@ -336,10 +327,10 @@ Status _xvmc_create_surface (
*priv_count = 0;
*priv_data = NULL;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (CreateSurface, req);
+ LockDisplay(dpy);
+ XvMCGetReq(CreateSurface, req);
surface->surface_id = XAllocID(dpy);
surface->context_id = context->context_id;
@@ -349,42 +340,41 @@ Status _xvmc_create_surface (
req->surface_id = surface->surface_id;
req->context_id = surface->context_id;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return BadImplementation;
}
- if(rep.length) {
+ if (rep.length) {
if (rep.length < (INT_MAX >> 2))
*priv_data = Xmalloc(rep.length << 2);
- if(*priv_data) {
- _XRead(dpy, (char*)(*priv_data), rep.length << 2);
+ if (*priv_data) {
+ _XRead(dpy, (char *) (*priv_data), rep.length << 2);
*priv_count = rep.length;
- } else
+ }
+ else
_XEatDataWords(dpy, rep.length);
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-Status _xvmc_destroy_surface (
- Display *dpy,
- XvMCSurface *surface
-)
+Status
+_xvmc_destroy_surface(Display *dpy, XvMCSurface *surface)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcDestroySurfaceReq *req;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (DestroySurface, req);
+ LockDisplay(dpy);
+ XvMCGetReq(DestroySurface, req);
req->surface_id = surface->surface_id;
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
@@ -403,13 +393,12 @@ Status _xvmc_destroy_surface (
*/
-Status _xvmc_create_subpicture (
- Display *dpy,
- XvMCContext *context,
- XvMCSubpicture *subpicture,
- int *priv_count,
- CARD32 **priv_data
-)
+Status
+_xvmc_create_subpicture(Display *dpy,
+ XvMCContext *context,
+ XvMCSubpicture *subpicture,
+ int *priv_count,
+ CARD32 **priv_data)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcCreateSubpictureReply rep;
@@ -418,10 +407,10 @@ Status _xvmc_create_subpicture (
*priv_count = 0;
*priv_data = NULL;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (CreateSubpicture, req);
+ LockDisplay(dpy);
+ XvMCGetReq(CreateSubpicture, req);
subpicture->subpicture_id = XAllocID(dpy);
subpicture->context_id = context->context_id;
@@ -431,9 +420,9 @@ Status _xvmc_create_subpicture (
req->xvimage_id = subpicture->xvimage_id;
req->width = subpicture->width;
req->height = subpicture->height;
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
return BadImplementation;
}
@@ -446,44 +435,44 @@ Status _xvmc_create_subpicture (
subpicture->component_order[2] = rep.component_order[2];
subpicture->component_order[3] = rep.component_order[3];
- if(rep.length) {
+ if (rep.length) {
if (rep.length < (INT_MAX >> 2))
*priv_data = Xmalloc(rep.length << 2);
- if(*priv_data) {
- _XRead(dpy, (char*)(*priv_data), rep.length << 2);
+ if (*priv_data) {
+ _XRead(dpy, (char *) (*priv_data), rep.length << 2);
*priv_count = rep.length;
- } else
+ }
+ else
_XEatDataWords(dpy, rep.length);
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-Status _xvmc_destroy_subpicture(
- Display *dpy,
- XvMCSubpicture *subpicture
-)
+Status
+_xvmc_destroy_subpicture(Display *dpy, XvMCSubpicture *subpicture)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcDestroySubpictureReq *req;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (DestroySubpicture, req);
+ LockDisplay(dpy);
+ XvMCGetReq(DestroySubpicture, req);
req->subpicture_id = subpicture->subpicture_id;
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
return Success;
}
-Status XvMCGetDRInfo(Display *dpy, XvPortID port,
- char **name, char **busID,
- int *major, int *minor,
- int *patchLevel,
- int *isLocal)
+Status
+XvMCGetDRInfo(Display *dpy, XvPortID port,
+ char **name, char **busID,
+ int *major, int *minor,
+ int *patchLevel,
+ int *isLocal)
{
XExtDisplayInfo *info = xvmc_find_display(dpy);
xvmcGetDRInfoReply rep;
@@ -495,6 +484,7 @@ Status XvMCGetDRInfo(Display *dpy, XvPortID port,
volatile CARD32 *shMem;
struct timezone here;
struct timeval now;
+
here.tz_minuteswest = 0;
here.tz_dsttime = 0;
#endif
@@ -502,10 +492,10 @@ Status XvMCGetDRInfo(Display *dpy, XvPortID port,
*name = NULL;
*busID = NULL;
- XvMCCheckExtension (dpy, info, BadImplementation);
+ XvMCCheckExtension(dpy, info, BadImplementation);
- LockDisplay (dpy);
- XvMCGetReq (GetDRInfo, req);
+ LockDisplay(dpy);
+ XvMCGetReq(GetDRInfo, req);
req->port = port;
magic = 0;
@@ -524,84 +514,86 @@ Status XvMCGetDRInfo(Display *dpy, XvPortID port,
*/
if (shmKey >= 0) {
- shMem = (CARD32 *) shmat(shmKey, NULL, 0);
- shmctl(shmKey, IPC_RMID, NULL);
- if (shMem != (void *) -1) {
-
- register volatile CARD32 *shMemC = shMem;
- register int i;
-
- gettimeofday( &now, &here);
- magic = now.tv_usec & 0x000FFFFF;
- req->magic = magic;
- i = 1024 / sizeof(CARD32);
- while(i--) {
- *shMemC++ = magic;
- magic = ~magic;
- }
- } else {
- req->shmKey = -1;
- shmKey = -1;
- }
+ shMem = (CARD32 *) shmat(shmKey, NULL, 0);
+ shmctl(shmKey, IPC_RMID, NULL);
+ if (shMem != (void *) -1) {
+
+ register volatile CARD32 *shMemC = shMem;
+ register int i;
+
+ gettimeofday(&now, &here);
+ magic = now.tv_usec & 0x000FFFFF;
+ req->magic = magic;
+ i = 1024 / sizeof(CARD32);
+ while (i--) {
+ *shMemC++ = magic;
+ magic = ~magic;
+ }
+ }
+ else {
+ req->shmKey = -1;
+ shmKey = -1;
+ }
}
#else
req->shmKey = 0;
#endif
- if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
- UnlockDisplay (dpy);
- SyncHandle ();
+ if (!_XReply(dpy, (xReply *) &rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
#ifdef HAVE_SHMAT
- if (shmKey >= 0) {
- shmdt( (const void *) shMem );
- }
+ if (shmKey >= 0) {
+ shmdt((const void *) shMem);
+ }
#endif
return -1;
}
#ifdef HAVE_SHMAT
if (shmKey >= 0) {
- shmdt( (const void *) shMem );
+ shmdt((const void *) shMem);
}
#endif
if (rep.length > 0) {
- unsigned long realSize = 0;
- char *tmpBuf = NULL;
-
- if ((rep.length < (INT_MAX >> 2)) &&
- /* protect against overflow in strncpy below */
- (rep.nameLen + rep.busIDLen > rep.nameLen)) {
- realSize = rep.length << 2;
- if (realSize >= (rep.nameLen + rep.busIDLen)) {
- tmpBuf = Xmalloc(realSize);
- *name = Xmalloc(rep.nameLen);
- *busID = Xmalloc(rep.busIDLen);
- }
- }
-
- if (*name && *busID && tmpBuf) {
- _XRead(dpy, tmpBuf, realSize);
- strncpy(*name,tmpBuf,rep.nameLen);
- (*name)[rep.nameLen == 0 ? 0 : rep.nameLen - 1] = '\0';
- strncpy(*busID,tmpBuf+rep.nameLen,rep.busIDLen);
- (*busID)[rep.busIDLen == 0 ? 0 : rep.busIDLen - 1] = '\0';
- XFree(tmpBuf);
- } else {
- XFree(*name);
- *name = NULL;
- XFree(*busID);
- *busID = NULL;
- XFree(tmpBuf);
-
- _XEatDataWords(dpy, rep.length);
- UnlockDisplay (dpy);
- SyncHandle ();
- return -1;
-
- }
+ unsigned long realSize = 0;
+ char *tmpBuf = NULL;
+
+ if ((rep.length < (INT_MAX >> 2)) &&
+ /* protect against overflow in strncpy below */
+ (rep.nameLen + rep.busIDLen > rep.nameLen)) {
+ realSize = rep.length << 2;
+ if (realSize >= (rep.nameLen + rep.busIDLen)) {
+ tmpBuf = Xmalloc(realSize);
+ *name = Xmalloc(rep.nameLen);
+ *busID = Xmalloc(rep.busIDLen);
+ }
+ }
+
+ if (*name && *busID && tmpBuf) {
+ _XRead(dpy, tmpBuf, realSize);
+ strncpy(*name, tmpBuf, rep.nameLen);
+ (*name)[rep.nameLen == 0 ? 0 : rep.nameLen - 1] = '\0';
+ strncpy(*busID, tmpBuf + rep.nameLen, rep.busIDLen);
+ (*busID)[rep.busIDLen == 0 ? 0 : rep.busIDLen - 1] = '\0';
+ XFree(tmpBuf);
+ }
+ else {
+ XFree(*name);
+ *name = NULL;
+ XFree(*busID);
+ *busID = NULL;
+ XFree(tmpBuf);
+
+ _XEatDataWords(dpy, rep.length);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return -1;
+
+ }
}
- UnlockDisplay (dpy);
- SyncHandle ();
+ UnlockDisplay(dpy);
+ SyncHandle();
*major = rep.major;
*minor = rep.minor;
*patchLevel = rep.patchLevel;
@@ -613,4 +605,3 @@ Status XvMCGetDRInfo(Display *dpy, XvPortID port,
*isLocal = 1;
return (rep.length > 0) ? Success : BadImplementation;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 15:22:49 +0000