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xserver/hw/kdrive/ephyr/ephyrhostvideo.c
Dodji Seketeli aa478e09e2 make properties setting/query code work and hopefully complete. 
* hw/kdrive/ephyr/ephyrhostvideo.c,h:
         (EphyrHostXVQueryImageAttributes): add this call. It calls
         XvQueryBestSize xserver entry point. It uses the protocol
         level machinery because Xvlib does not expose that entry point
         as a C function.
         (EphyrHostXVQueryBestSize): added this wrapper around XvQueryBestSize().
         (EphyrHostGetAtom, EphyrHostGetAtomName): added this to get
          an atom or atom name from the host server
        * hw/kdrive/ephyr/ephyrvideo.c:
          (EphyrSetPortAttribute): convert the atom into an host server
          server atom before attacking the host server with it, because in
          in its current form, the input atom is only valid in xephyr.
          This fix makes this call work.
          (EphyrGetPortAttribute): ditto.
          (EphyrQueryBestSize): implement this.
          (EphyrQueryImageAttributes): implement this.
2007-10-02 16:55:13 +02:00

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/*
* Xephyr - A kdrive X server thats runs in a host X window.
* Authored by Matthew Allum <mallum@openedhand.com>
*
* Copyright © 2007 OpenedHand Ltd
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of OpenedHand Ltd not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. OpenedHand Ltd makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors:
* Dodji Seketeli <dodji@openedhand.com>
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include <X11/Xutil.h>
#include <X11/Xlibint.h>
#include <X11/extensions/Xvlib.h>
#include <X11/extensions/Xvproto.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#define _HAVE_XALLOC_DECLS
#include "hostx.h"
#include "ephyrhostvideo.h"
#include "ephyrlog.h"
#ifndef TRUE
#define TRUE 1
#endif /*TRUE*/
#ifndef FALSE
#define FALSE 0
#endif /*FALSE*/
static XExtensionInfo _xv_info_data;
static XExtensionInfo *xv_info = &_xv_info_data;
static char *xv_extension_name = XvName;
static char *xv_error_string(Display *dpy, int code, XExtCodes *codes,
char * buf, int n);
static int xv_close_display(Display *dpy, XExtCodes *codes);
static Bool xv_wire_to_event(Display *dpy, XEvent *host, xEvent *wire);
static XExtensionHooks xv_extension_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
xv_close_display, /* close_display */
xv_wire_to_event, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
xv_error_string /* error_string */
};
static char *xv_error_list[] =
{
"BadPort", /* XvBadPort */
"BadEncoding", /* XvBadEncoding */
"BadControl" /* XvBadControl */
};
#define XvCheckExtension(dpy, i, val) \
XextCheckExtension(dpy, i, xv_extension_name, val)
#define XvGetReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xv##name##Req)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xv##name##Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = info->codes->major_opcode;\
req->xvReqType = xv_##name; \
req->length = (SIZEOF(xv##name##Req))>>2;\
dpy->bufptr += SIZEOF(xv##name##Req);\
dpy->request++
static XEXT_GENERATE_CLOSE_DISPLAY (xv_close_display, xv_info)
static XEXT_GENERATE_FIND_DISPLAY (xv_find_display, xv_info,
xv_extension_name,
&xv_extension_hooks,
XvNumEvents, NULL)
static XEXT_GENERATE_ERROR_STRING (xv_error_string, xv_extension_name,
XvNumErrors, xv_error_list)
struct _EphyrHostXVAdaptorArray {
XvAdaptorInfo *adaptors ;
unsigned int nb_adaptors ;
};
Bool
EphyrHostXVQueryAdaptors (EphyrHostXVAdaptorArray **a_adaptors)
{
EphyrHostXVAdaptorArray *result=NULL ;
int ret=0 ;
Bool is_ok=FALSE ;
EPHYR_RETURN_VAL_IF_FAIL (a_adaptors, FALSE) ;
EPHYR_LOG ("enter\n") ;
result = Xcalloc (1, sizeof (EphyrHostXVAdaptorArray)) ;
if (!result)
goto out ;
ret = XvQueryAdaptors (hostx_get_display (),
DefaultRootWindow (hostx_get_display ()),
&result->nb_adaptors,
&result->adaptors) ;
if (ret != Success) {
EPHYR_LOG_ERROR ("failed to query host adaptors: %d\n", ret) ;
goto out ;
}
*a_adaptors = result ;
is_ok = TRUE ;
out:
EPHYR_LOG ("leave\n") ;
return is_ok ;
}
void
EphyrHostXVAdaptorArrayDelete (EphyrHostXVAdaptorArray *a_adaptors)
{
if (!a_adaptors)
return ;
if (a_adaptors->adaptors) {
XvFreeAdaptorInfo (a_adaptors->adaptors) ;
a_adaptors->adaptors = NULL ;
a_adaptors->nb_adaptors = 0 ;
}
XFree (a_adaptors) ;
}
int
EphyrHostXVAdaptorArrayGetSize (const EphyrHostXVAdaptorArray *a_this)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, -1) ;
return a_this->nb_adaptors ;
}
EphyrHostXVAdaptor*
EphyrHostXVAdaptorArrayAt (const EphyrHostXVAdaptorArray *a_this,
int a_index)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, NULL) ;
if (a_index >= a_this->nb_adaptors)
return NULL ;
return (EphyrHostXVAdaptor*)&a_this->adaptors[a_index] ;
}
char
EphyrHostXVAdaptorGetType (const EphyrHostXVAdaptor *a_this)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, -1) ;
return ((XvAdaptorInfo*)a_this)->type ;
}
const char*
EphyrHostXVAdaptorGetName (const EphyrHostXVAdaptor *a_this)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, NULL) ;
return ((XvAdaptorInfo*)a_this)->name ;
}
EphyrHostVideoFormat*
EphyrHostXVAdaptorGetVideoFormats (const EphyrHostXVAdaptor *a_this,
int *a_nb_formats)
{
EphyrHostVideoFormat *formats=NULL ;
int nb_formats=0, i=0 ;
XVisualInfo *visual_info, visual_info_template ;
int nb_visual_info ;
EPHYR_RETURN_VAL_IF_FAIL (a_this, NULL) ;
nb_formats = ((XvAdaptorInfo*)a_this)->num_formats ;
formats = Xcalloc (nb_formats, sizeof (EphyrHostVideoFormat)) ;
for (i=0; i < nb_formats; i++) {
memset (&visual_info_template, 0, sizeof (visual_info_template)) ;
visual_info_template.visualid =
((XvAdaptorInfo*)a_this)->formats[i].visual_id;
visual_info = XGetVisualInfo (hostx_get_display (),
VisualIDMask,
&visual_info_template,
&nb_visual_info) ;
formats[i].depth = ((XvAdaptorInfo*)a_this)->formats[i].depth ;
formats[i].visual_class = visual_info->class ;
XFree (visual_info) ;
}
if (a_nb_formats)
*a_nb_formats = nb_formats ;
return formats ;
}
int
EphyrHostXVAdaptorGetNbPorts (const EphyrHostXVAdaptor *a_this)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, -1) ;
return ((XvAdaptorInfo*)a_this)->num_ports ;
}
int
EphyrHostXVAdaptorGetFirstPortID (const EphyrHostXVAdaptor *a_this)
{
EPHYR_RETURN_VAL_IF_FAIL (a_this, -1) ;
return ((XvAdaptorInfo*)a_this)->base_id ;
}
Bool
EphyrHostXVQueryEncodings (int a_port_id,
EphyrHostEncoding **a_encodings,
unsigned int *a_num_encodings)
{
EphyrHostEncoding *encodings=NULL ;
XvEncodingInfo *encoding_info=NULL ;
unsigned int num_encodings=0, i;
int ret=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_encodings && a_num_encodings, FALSE) ;
ret = XvQueryEncodings (hostx_get_display (),
a_port_id,
&num_encodings,
&encoding_info) ;
if (num_encodings && encoding_info) {
encodings = Xcalloc (num_encodings, sizeof (EphyrHostEncoding)) ;
for (i=0; i<num_encodings; i++) {
encodings[i].id = encoding_info[i].encoding_id ;
encodings[i].name = strdup (encoding_info[i].name) ;
encodings[i].width = encoding_info[i].width ;
encodings[i].height = encoding_info[i].height ;
encodings[i].rate.numerator = encoding_info[i].rate.numerator ;
encodings[i].rate.denominator = encoding_info[i].rate.denominator ;
}
}
if (encoding_info) {
XvFreeEncodingInfo (encoding_info) ;
encoding_info = NULL ;
}
*a_encodings = encodings ;
*a_num_encodings = num_encodings ;
if (ret != Success)
return FALSE ;
return TRUE ;
}
void
EphyrHostEncodingsDelete (EphyrHostEncoding *a_encodings,
int a_num_encodings)
{
int i=0 ;
if (!a_encodings)
return ;
for (i=0; i < a_num_encodings; i++) {
if (a_encodings[i].name) {
xfree (a_encodings[i].name) ;
a_encodings[i].name = NULL ;
}
}
xfree (a_encodings) ;
}
void
EphyrHostAttributesDelete (EphyrHostAttribute *a_attributes)
{
if (!a_attributes)
return ;
XFree (a_attributes) ;
}
Bool
EphyrHostXVQueryPortAttributes (int a_port_id,
EphyrHostAttribute **a_attributes,
int *a_num_attributes)
{
EPHYR_RETURN_VAL_IF_FAIL (a_attributes && a_num_attributes, FALSE) ;
*a_attributes =
(EphyrHostAttribute*)XvQueryPortAttributes (hostx_get_display (),
a_port_id,
a_num_attributes);
return TRUE ;
}
Bool
EphyrHostXVQueryImageFormats (int a_port_id,
EphyrHostImageFormat **a_formats,
int *a_num_format)
{
XvImageFormatValues *result=NULL ;
EPHYR_RETURN_VAL_IF_FAIL (a_formats && a_num_format, FALSE) ;
result = XvListImageFormats (hostx_get_display (),
a_port_id,
a_num_format) ;
*a_formats = (EphyrHostImageFormat*) result ;
return TRUE ;
}
Bool
EphyrHostXVSetPortAttribute (int a_port_id,
int a_atom,
int a_attr_value)
{
int res=Success ;
EPHYR_LOG ("atom,value: (%d, %d)\n", a_atom, a_attr_value) ;
res = XvSetPortAttribute (hostx_get_display (),
a_port_id,
a_atom,
a_attr_value) ;
if (res != Success) {
EPHYR_LOG_ERROR ("XvSetPortAttribute() failed: %d\n", res) ;
return FALSE ;
}
EPHYR_LOG ("leave\n") ;
return TRUE ;
}
Bool
EphyrHostXVGetPortAttribute (int a_port_id,
int a_atom,
int *a_attr_value)
{
int res=Success ;
Bool ret=FALSE ;
EPHYR_RETURN_VAL_IF_FAIL (a_attr_value, FALSE) ;
EPHYR_LOG ("enter, a_port_id: %d, a_atomid: %d, attr_name: %s\n",
a_port_id, a_atom, XGetAtomName (hostx_get_display (), a_atom)) ;
res = XvGetPortAttribute (hostx_get_display (),
a_port_id,
a_atom,
a_attr_value) ;
if (res != Success) {
EPHYR_LOG_ERROR ("XvGetPortAttribute() failed: %d \n", res) ;
goto out ;
}
EPHYR_LOG ("atom,value: (%d, %d)\n", a_atom, *a_attr_value) ;
ret = TRUE ;
out:
EPHYR_LOG ("leave\n") ;
return ret ;
}
Bool
EphyrHostXVQueryBestSize (int a_port_id,
Bool a_motion,
unsigned int a_frame_w,
unsigned int a_frame_h,
unsigned int a_drw_w,
unsigned int a_drw_h,
unsigned int *a_actual_w,
unsigned int *a_actual_h)
{
int res=0 ;
Bool is_ok=FALSE ;
EPHYR_RETURN_VAL_IF_FAIL (a_actual_w && a_actual_h, FALSE) ;
EPHYR_LOG ("enter: frame (%dx%d), drw (%dx%d)\n",
a_frame_w, a_frame_h,
a_drw_w, a_drw_h) ;
res = XvQueryBestSize (hostx_get_display (),
a_port_id,
a_motion,
a_frame_w, a_frame_h,
a_drw_w, a_drw_h,
a_actual_w, a_actual_h) ;
if (res != Success) {
EPHYR_LOG_ERROR ("XvQueryBestSize() failed: %d\n", res) ;
goto out ;
}
EPHYR_LOG ("actual (%dx%d)\n", *a_actual_w, *a_actual_h) ;
is_ok = TRUE ;
out:
EPHYR_LOG ("leave\n") ;
return is_ok ;
}
static Bool
xv_wire_to_event(Display *dpy, XEvent *host, xEvent *wire)
{
XExtDisplayInfo *info = xv_find_display (dpy);
XvEvent *re = (XvEvent *)host;
xvEvent *event = (xvEvent *)wire;
XvCheckExtension(dpy, info, False);
switch ((event->u.u.type & 0x7F) - info->codes->first_event) {
case XvVideoNotify:
re->xvvideo.type = event->u.u.type & 0x7f;
re->xvvideo.serial =
_XSetLastRequestRead(dpy, (xGenericReply *)event);
re->xvvideo.send_event = ((event->u.u.type & 0x80) != 0);
re->xvvideo.display = dpy;
re->xvvideo.time = event->u.videoNotify.time;
re->xvvideo.reason = event->u.videoNotify.reason;
re->xvvideo.drawable = event->u.videoNotify.drawable;
re->xvvideo.port_id = event->u.videoNotify.port;
break;
case XvPortNotify:
re->xvport.type = event->u.u.type & 0x7f;
re->xvport.serial =
_XSetLastRequestRead(dpy, (xGenericReply *)event);
re->xvport.send_event = ((event->u.u.type & 0x80) != 0);
re->xvport.display = dpy;
re->xvport.time = event->u.portNotify.time;
re->xvport.port_id = event->u.portNotify.port;
re->xvport.attribute = event->u.portNotify.attribute;
re->xvport.value = event->u.portNotify.value;
break;
default:
return False;
}
return True ;
}
Bool
EphyrHostXVQueryImageAttributes (int a_port_id,
int a_image_id /*image fourcc code*/,
unsigned short *a_width,
unsigned short *a_height,
int *a_image_size,
int *a_pitches,
int *a_offsets)
{
Display *dpy = hostx_get_display () ;
Bool ret=FALSE ;
XExtDisplayInfo *info = xv_find_display (dpy);
xvQueryImageAttributesReq *req=NULL;
xvQueryImageAttributesReply rep;
EPHYR_RETURN_VAL_IF_FAIL (a_width, FALSE) ;
EPHYR_RETURN_VAL_IF_FAIL (a_height, FALSE) ;
EPHYR_RETURN_VAL_IF_FAIL (a_image_size, FALSE) ;
XvCheckExtension (dpy, info, FALSE);
LockDisplay (dpy);
XvGetReq (QueryImageAttributes, req);
req->id = a_image_id;
req->port = a_port_id;
req->width = *a_width;
req->height = *a_height;
/*
* read the reply
*/
if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) {
EPHYR_LOG_ERROR ("QeryImageAttribute req failed\n") ;
goto out ;
}
if (a_pitches && a_offsets) {
_XRead (dpy,
(char*)a_pitches,
rep.num_planes << 2);
_XRead (dpy,
(char*)a_offsets,
rep.num_planes << 2);
} else {
_XEatData(dpy, rep.length << 2);
}
*a_width = rep.width ;
*a_height = rep.height ;
*a_image_size = rep.data_size ;
ret = TRUE ;
out:
UnlockDisplay (dpy) ;
SyncHandle ();
return ret ;
}
Bool
EphyrHostGetAtom (const char* a_name,
Bool a_create_if_not_exists,
int *a_atom)
{
int atom=None ;
EPHYR_RETURN_VAL_IF_FAIL (a_atom, FALSE) ;
atom = XInternAtom (hostx_get_display (), a_name, a_create_if_not_exists);
if (atom == None) {
return FALSE ;
}
*a_atom = atom ;
return TRUE ;
}
char*
EphyrHostGetAtomName (int a_atom)
{
return XGetAtomName (hostx_get_display (), a_atom) ;
}
void
EphyrHostFree (void *a_pointer)
{
if (a_pointer)
XFree (a_pointer) ;
}
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