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xserver-multidpi/hw/kdrive/ephyr/ephyrvideo.c
Alan Coopersmith 5623c27700 Constify atom name strings 
Changes MakeAtom to take a const char * and NameForAtom to return them,
since many callers pass pointers to constant strings stored in read-only
ELF sections.   Updates in-tree callers as necessary to clear const
mismatch warnings introduced by this change.

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-02-03 10:06:00 -08:00

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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 <string.h>
#include <X11/extensions/Xv.h>
#include "ephyrlog.h"
#include "kdrive.h"
#include "kxv.h"
#include "ephyr.h"
#include "hostx.h"
#include "ephyrhostvideo.h"
struct _EphyrXVPriv {
EphyrHostXVAdaptorArray *host_adaptors ;
KdVideoAdaptorPtr adaptors ;
int num_adaptors ;
};
typedef struct _EphyrXVPriv EphyrXVPriv ;
struct _EphyrPortPriv {
int port_number ;
KdVideoAdaptorPtr current_adaptor ;
EphyrXVPriv *xv_priv;
unsigned char *image_buf ;
int image_buf_size ;
int image_id ;
int drw_x, drw_y, drw_w, drw_h ;
int src_x, src_y, src_w, src_h ;
int image_width, image_height ;
};
typedef struct _EphyrPortPriv EphyrPortPriv ;
static Bool DoSimpleClip (BoxPtr a_dst_drw,
BoxPtr a_clipper,
BoxPtr a_result) ;
static Bool ephyrLocalAtomToHost (int a_local_atom, int *a_host_atom) ;
/*
static Bool ephyrHostAtomToLocal (int a_host_atom, int *a_local_atom) ;
*/
static EphyrXVPriv* ephyrXVPrivNew (void) ;
static void ephyrXVPrivDelete (EphyrXVPriv *a_this) ;
static Bool ephyrXVPrivQueryHostAdaptors (EphyrXVPriv *a_this) ;
static Bool ephyrXVPrivSetAdaptorsHooks (EphyrXVPriv *a_this) ;
static Bool ephyrXVPrivRegisterAdaptors (EphyrXVPriv *a_this,
ScreenPtr a_screen) ;
static Bool ephyrXVPrivIsAttrValueValid (KdAttributePtr a_attrs,
int a_attrs_len,
const char *a_attr_name,
int a_attr_value,
Bool *a_is_valid) ;
static Bool ephyrXVPrivGetImageBufSize (int a_port_id,
int a_image_id,
unsigned short a_width,
unsigned short a_height,
int *a_size) ;
static Bool ephyrXVPrivSaveImageToPortPriv (EphyrPortPriv *a_port_priv,
const unsigned char *a_image,
int a_image_len) ;
static void ephyrStopVideo (KdScreenInfo *a_info,
pointer a_xv_priv,
Bool a_exit);
static int ephyrSetPortAttribute (KdScreenInfo *a_info,
Atom a_attr_name,
int a_attr_value,
pointer a_port_priv);
static int ephyrGetPortAttribute (KdScreenInfo *a_screen_info,
Atom a_attr_name,
int *a_attr_value,
pointer a_port_priv);
static void ephyrQueryBestSize (KdScreenInfo *a_info,
Bool a_motion,
short a_src_w,
short a_src_h,
short a_drw_w,
short a_drw_h,
unsigned int *a_prefered_w,
unsigned int *a_prefered_h,
pointer a_port_priv);
static int ephyrPutImage (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_src_x,
short a_src_y,
short a_drw_x,
short a_drw_y,
short a_src_w,
short a_src_h,
short a_drw_w,
short a_drw_h,
int a_id,
unsigned char *a_buf,
short a_width,
short a_height,
Bool a_sync,
RegionPtr a_clipping_region,
pointer a_port_priv);
static int ephyrReputImage (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_drw_x,
short a_drw_y,
RegionPtr a_clipping_region,
pointer a_port_priv) ;
static int ephyrPutVideo (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clip_region,
pointer a_port_priv) ;
static int ephyrGetVideo (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clip_region,
pointer a_port_priv) ;
static int ephyrPutStill (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clip_region,
pointer a_port_priv) ;
static int ephyrGetStill (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clip_region,
pointer a_port_priv) ;
static int ephyrQueryImageAttributes (KdScreenInfo *a_info,
int a_id,
unsigned short *a_w,
unsigned short *a_h,
int *a_pitches,
int *a_offsets);
static int s_base_port_id ;
/**************
* <helpers>
* ************/
static Bool
DoSimpleClip (BoxPtr a_dst_box,
BoxPtr a_clipper,
BoxPtr a_result)
{
BoxRec dstClippedBox ;
EPHYR_RETURN_VAL_IF_FAIL (a_dst_box && a_clipper && a_result, FALSE) ;
/*
* setup the clipbox inside the destination.
*/
dstClippedBox.x1 = a_dst_box->x1 ;
dstClippedBox.x2 = a_dst_box->x2 ;
dstClippedBox.y1 = a_dst_box->y1 ;
dstClippedBox.y2 = a_dst_box->y2 ;
/*
* if the cliper leftmost edge is inside
* the destination area then the leftmost edge of the resulting
* clipped box is the leftmost edge of the cliper.
*/
if (a_clipper->x1 > dstClippedBox.x1)
dstClippedBox.x1 = a_clipper->x1 ;
/*
* if the cliper top edge is inside the destination area
* then the bottom horizontal edge of the resulting clipped box
* is the bottom edge of the cliper
*/
if (a_clipper->y1 > dstClippedBox.y1)
dstClippedBox.y1 = a_clipper->y1 ;
/*ditto for right edge*/
if (a_clipper->x2 < dstClippedBox.x2)
dstClippedBox.x2 = a_clipper->x2 ;
/*ditto for bottom edge*/
if (a_clipper->y2 < dstClippedBox.y2)
dstClippedBox.y2 = a_clipper->y2 ;
memcpy (a_result, &dstClippedBox, sizeof (dstClippedBox)) ;
return TRUE ;
}
static Bool
ephyrLocalAtomToHost (int a_local_atom, int *a_host_atom)
{
const char *atom_name=NULL;
int host_atom=None ;
EPHYR_RETURN_VAL_IF_FAIL (a_host_atom, FALSE) ;
if (!ValidAtom (a_local_atom))
return FALSE ;
atom_name = NameForAtom (a_local_atom) ;
if (!atom_name)
return FALSE ;
if (!ephyrHostGetAtom (atom_name, FALSE, &host_atom) || host_atom == None) {
EPHYR_LOG_ERROR ("no atom for string %s defined in host X\n",
atom_name) ;
return FALSE ;
}
*a_host_atom = host_atom ;
return TRUE ;
}
/*
Not used yed.
static Bool
ephyrHostAtomToLocal (int a_host_atom, int *a_local_atom)
{
Bool is_ok=FALSE ;
char *atom_name=NULL ;
int atom=None ;
EPHYR_RETURN_VAL_IF_FAIL (a_local_atom, FALSE) ;
atom_name = ephyrHostGetAtomName (a_host_atom) ;
if (!atom_name)
goto out ;
atom = MakeAtom (atom_name, strlen (atom_name), TRUE) ;
if (atom == None)
goto out ;
*a_local_atom = atom ;
is_ok = TRUE ;
out:
if (atom_name) {
ephyrHostFree (atom_name) ;
}
return is_ok ;
}
*/
/**************
*</helpers>
* ************/
Bool
ephyrInitVideo (ScreenPtr pScreen)
{
Bool is_ok = FALSE ;
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
static EphyrXVPriv *xv_priv;
EPHYR_LOG ("enter\n") ;
if (screen->fb[0].bitsPerPixel == 8) {
EPHYR_LOG_ERROR ("8 bits depth not supported\n") ;
return FALSE ;
}
if (!xv_priv) {
xv_priv = ephyrXVPrivNew () ;
}
if (!xv_priv) {
EPHYR_LOG_ERROR ("failed to create xv_priv\n") ;
goto out ;
}
if (!ephyrXVPrivRegisterAdaptors (xv_priv, pScreen)) {
EPHYR_LOG_ERROR ("failed to register adaptors\n") ;
goto out ;
}
is_ok = TRUE ;
out:
return is_ok ;
}
static EphyrXVPriv*
ephyrXVPrivNew (void)
{
EphyrXVPriv *xv_priv=NULL ;
EPHYR_LOG ("enter\n") ;
xv_priv = xcalloc (1, sizeof (EphyrXVPriv)) ;
if (!xv_priv) {
EPHYR_LOG_ERROR ("failed to create EphyrXVPriv\n") ;
goto error ;
}
ephyrHostXVInit () ;
if (!ephyrXVPrivQueryHostAdaptors (xv_priv)) {
EPHYR_LOG_ERROR ("failed to query the host x for xv properties\n") ;
goto error ;
}
if (!ephyrXVPrivSetAdaptorsHooks (xv_priv)) {
EPHYR_LOG_ERROR ("failed to set xv_priv hooks\n") ;
goto error ;
}
EPHYR_LOG ("leave\n") ;
return xv_priv ;
error:
if (xv_priv) {
ephyrXVPrivDelete (xv_priv) ;
xv_priv = NULL ;
}
return NULL ;
}
static void
ephyrXVPrivDelete (EphyrXVPriv *a_this)
{
EPHYR_LOG ("enter\n") ;
if (!a_this)
return ;
if (a_this->host_adaptors) {
ephyrHostXVAdaptorArrayDelete (a_this->host_adaptors) ;
a_this->host_adaptors = NULL ;
}
if (a_this->adaptors) {
xfree (a_this->adaptors) ;
a_this->adaptors = NULL ;
}
xfree (a_this) ;
EPHYR_LOG ("leave\n") ;
}
static KdVideoEncodingPtr
videoEncodingDup (EphyrHostEncoding *a_encodings,
int a_num_encodings)
{
KdVideoEncodingPtr result = NULL ;
int i=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_encodings && a_num_encodings, NULL) ;
result = xcalloc (a_num_encodings, sizeof (KdVideoEncodingRec)) ;
for (i=0 ; i < a_num_encodings; i++) {
result[i].id = a_encodings[i].id ;
result[i].name = strdup (a_encodings[i].name) ;
result[i].width = a_encodings[i].width ;
result[i].height = a_encodings[i].height ;
result[i].rate.numerator = a_encodings[i].rate.numerator ;
result[i].rate.denominator = a_encodings[i].rate.denominator ;
}
return result ;
}
static KdAttributePtr
portAttributesDup (EphyrHostAttribute *a_encodings,
int a_num_encodings)
{
int i=0 ;
KdAttributePtr result=NULL ;
EPHYR_RETURN_VAL_IF_FAIL (a_encodings && a_num_encodings, NULL) ;
result = xcalloc (a_num_encodings, sizeof (KdAttributeRec)) ;
if (!result) {
EPHYR_LOG_ERROR ("failed to allocate attributes\n") ;
return NULL ;
}
for (i=0; i < a_num_encodings; i++) {
result[i].flags = a_encodings[i].flags ;
result[i].min_value = a_encodings[i].min_value ;
result[i].max_value = a_encodings[i].max_value ;
result[i].name = strdup (a_encodings[i].name) ;
}
return result ;
}
static Bool
ephyrXVPrivQueryHostAdaptors (EphyrXVPriv *a_this)
{
EphyrHostXVAdaptor *cur_host_adaptor=NULL ;
EphyrHostVideoFormat *video_formats=NULL ;
EphyrHostEncoding *encodings=NULL ;
EphyrHostAttribute *attributes=NULL ;
EphyrHostImageFormat *image_formats=NULL ;
int num_video_formats=0, base_port_id=0,
num_attributes=0, num_formats=0, i=0,
port_priv_offset=0;
unsigned num_encodings=0 ;
Bool is_ok = FALSE ;
EPHYR_RETURN_VAL_IF_FAIL (a_this, FALSE) ;
EPHYR_LOG ("enter\n") ;
if (!ephyrHostXVQueryAdaptors (&a_this->host_adaptors)) {
EPHYR_LOG_ERROR ("failed to query host adaptors\n") ;
goto out ;
}
if (a_this->host_adaptors)
a_this->num_adaptors =
ephyrHostXVAdaptorArrayGetSize (a_this->host_adaptors) ;
if (a_this->num_adaptors < 0) {
EPHYR_LOG_ERROR ("failed to get number of host adaptors\n") ;
goto out ;
}
EPHYR_LOG ("host has %d adaptors\n", a_this->num_adaptors) ;
/*
* copy what we can from adaptors into a_this->adaptors
*/
if (a_this->num_adaptors) {
a_this->adaptors = xcalloc (a_this->num_adaptors,
sizeof (KdVideoAdaptorRec)) ;
if (!a_this->adaptors) {
EPHYR_LOG_ERROR ("failed to create internal adaptors\n") ;
goto out ;
}
}
for (i=0; i < a_this->num_adaptors; i++) {
int j=0 ;
cur_host_adaptor =
ephyrHostXVAdaptorArrayAt (a_this->host_adaptors, i) ;
if (!cur_host_adaptor)
continue ;
a_this->adaptors[i].nPorts =
ephyrHostXVAdaptorGetNbPorts (cur_host_adaptor) ;
if (a_this->adaptors[i].nPorts <=0) {
EPHYR_LOG_ERROR ("Could not find any port of adaptor %d\n", i) ;
continue ;
}
a_this->adaptors[i].type =
ephyrHostXVAdaptorGetType (cur_host_adaptor) ;
a_this->adaptors[i].type |= XvWindowMask ;
a_this->adaptors[i].flags =
VIDEO_OVERLAID_IMAGES | VIDEO_CLIP_TO_VIEWPORT;
if (ephyrHostXVAdaptorGetName (cur_host_adaptor))
a_this->adaptors[i].name =
strdup (ephyrHostXVAdaptorGetName (cur_host_adaptor)) ;
else
a_this->adaptors[i].name = strdup ("Xephyr Video Overlay");
base_port_id = ephyrHostXVAdaptorGetFirstPortID (cur_host_adaptor) ;
if (base_port_id < 0) {
EPHYR_LOG_ERROR ("failed to get port id for adaptor %d\n", i) ;
continue ;
}
if (!s_base_port_id)
s_base_port_id = base_port_id ;
if (!ephyrHostXVQueryEncodings (base_port_id,
&encodings,
&num_encodings)) {
EPHYR_LOG_ERROR ("failed to get encodings for port port id %d,"
" adaptors %d\n",
base_port_id, i) ;
continue ;
}
a_this->adaptors[i].nEncodings = num_encodings ;
a_this->adaptors[i].pEncodings =
videoEncodingDup (encodings, num_encodings) ;
video_formats = (EphyrHostVideoFormat*)
ephyrHostXVAdaptorGetVideoFormats (cur_host_adaptor,
&num_video_formats);
a_this->adaptors[i].pFormats = (KdVideoFormatPtr) video_formats ;
a_this->adaptors[i].nFormats = num_video_formats ;
/* got a_this->adaptors[i].nPorts already
a_this->adaptors[i].nPorts =
ephyrHostXVAdaptorGetNbPorts (cur_host_adaptor) ;
*/
a_this->adaptors[i].pPortPrivates =
xcalloc (a_this->adaptors[i].nPorts,
sizeof (DevUnion) + sizeof (EphyrPortPriv)) ;
port_priv_offset = a_this->adaptors[i].nPorts;
for (j=0; j < a_this->adaptors[i].nPorts; j++) {
EphyrPortPriv *port_privs_base =
(EphyrPortPriv*)&a_this->adaptors[i].pPortPrivates[port_priv_offset];
EphyrPortPriv *port_priv = &port_privs_base[j] ;
port_priv->port_number = base_port_id + j;
port_priv->current_adaptor = &a_this->adaptors[i] ;
port_priv->xv_priv = a_this ;
a_this->adaptors[i].pPortPrivates[j].ptr = port_priv;
}
if (!ephyrHostXVQueryPortAttributes (base_port_id,
&attributes,
&num_attributes)) {
EPHYR_LOG_ERROR ("failed to get port attribute "
"for adaptor %d\n", i) ;
continue ;
}
a_this->adaptors[i].pAttributes =
portAttributesDup (attributes, num_attributes);
a_this->adaptors[i].nAttributes = num_attributes ;
/*make sure atoms of attrs names are created in xephyr*/
for (j=0; j < a_this->adaptors[i].nAttributes; j++) {
if (a_this->adaptors[i].pAttributes[j].name)
MakeAtom (a_this->adaptors[i].pAttributes[j].name,
strlen (a_this->adaptors[i].pAttributes[j].name),
TRUE) ;
}
if (!ephyrHostXVQueryImageFormats (base_port_id,
&image_formats,
&num_formats)) {
EPHYR_LOG_ERROR ("failed to get image formats "
"for adaptor %d\n", i) ;
continue ;
}
a_this->adaptors[i].pImages = (KdImagePtr) image_formats ;
a_this->adaptors[i].nImages = num_formats ;
}
is_ok = TRUE ;
out:
if (encodings) {
ephyrHostEncodingsDelete (encodings, num_encodings) ;
encodings = NULL ;
}
if (attributes) {
ephyrHostAttributesDelete (attributes) ;
attributes = NULL ;
}
EPHYR_LOG ("leave\n") ;
return is_ok ;
}
static Bool
ephyrXVPrivSetAdaptorsHooks (EphyrXVPriv *a_this)
{
int i=0 ;
Bool has_it=FALSE ;
EphyrHostXVAdaptor *cur_host_adaptor=NULL ;
EPHYR_RETURN_VAL_IF_FAIL (a_this, FALSE) ;
EPHYR_LOG ("enter\n") ;
for (i=0; i < a_this->num_adaptors; i++) {
a_this->adaptors[i].ReputImage = ephyrReputImage ;
a_this->adaptors[i].StopVideo = ephyrStopVideo ;
a_this->adaptors[i].SetPortAttribute = ephyrSetPortAttribute ;
a_this->adaptors[i].GetPortAttribute = ephyrGetPortAttribute ;
a_this->adaptors[i].QueryBestSize = ephyrQueryBestSize ;
a_this->adaptors[i].QueryImageAttributes = ephyrQueryImageAttributes ;
cur_host_adaptor =
ephyrHostXVAdaptorArrayAt (a_this->host_adaptors, i) ;
if (!cur_host_adaptor) {
EPHYR_LOG_ERROR ("failed to get host adaptor at index %d\n", i) ;
continue ;
}
has_it = FALSE ;
if (!ephyrHostXVAdaptorHasPutImage (cur_host_adaptor, &has_it)) {
EPHYR_LOG_ERROR ("error\n") ;
}
if (has_it) {
a_this->adaptors[i].PutImage = ephyrPutImage;
}
has_it = FALSE ;
if (!ephyrHostXVAdaptorHasPutVideo (cur_host_adaptor, &has_it)) {
EPHYR_LOG_ERROR ("error\n") ;
}
if (has_it) {
a_this->adaptors[i].PutVideo = ephyrPutVideo;
}
has_it = FALSE ;
if (!ephyrHostXVAdaptorHasGetVideo (cur_host_adaptor, &has_it)) {
EPHYR_LOG_ERROR ("error\n") ;
}
if (has_it) {
a_this->adaptors[i].GetVideo = ephyrGetVideo;
}
has_it = FALSE ;
if (!ephyrHostXVAdaptorHasPutStill (cur_host_adaptor, &has_it)) {
EPHYR_LOG_ERROR ("error\n") ;
}
if (has_it) {
a_this->adaptors[i].PutStill = ephyrPutStill;
}
has_it = FALSE ;
if (!ephyrHostXVAdaptorHasGetStill (cur_host_adaptor, &has_it)) {
EPHYR_LOG_ERROR ("error\n") ;
}
if (has_it) {
a_this->adaptors[i].GetStill = ephyrGetStill;
}
}
EPHYR_LOG ("leave\n") ;
return TRUE ;
}
static Bool
ephyrXVPrivRegisterAdaptors (EphyrXVPriv *a_this,
ScreenPtr a_screen)
{
KdScreenPriv(a_screen);
KdScreenInfo *screen = pScreenPriv->screen;
Bool is_ok = FALSE ;
KdVideoAdaptorPtr *adaptors=NULL, *registered_adaptors=NULL ;
int num_registered_adaptors=0, i=0, num_adaptors=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_this && a_screen, FALSE) ;
EPHYR_LOG ("enter\n") ;
if (!a_this->num_adaptors)
goto out ;
num_registered_adaptors =
KdXVListGenericAdaptors (screen, &registered_adaptors);
num_adaptors = num_registered_adaptors + a_this->num_adaptors ;
adaptors = xcalloc (num_adaptors, sizeof (KdVideoAdaptorPtr)) ;
if (!adaptors) {
EPHYR_LOG_ERROR ("failed to allocate adaptors tab\n") ;
goto out ;
}
memmove (adaptors, registered_adaptors, num_registered_adaptors) ;
for (i=0 ; i < a_this->num_adaptors; i++) {
*(adaptors + num_registered_adaptors + i) = &a_this->adaptors[i] ;
}
if (!KdXVScreenInit (a_screen, adaptors, num_adaptors)) {
EPHYR_LOG_ERROR ("failed to register adaptors\n");
goto out ;
}
EPHYR_LOG ("there are %d registered adaptors\n", num_adaptors) ;
is_ok = TRUE ;
out:
if (registered_adaptors) {
xfree (registered_adaptors) ;
registered_adaptors = NULL ;
}
if (adaptors) {
xfree (adaptors) ;
adaptors=NULL ;
}
EPHYR_LOG ("leave\n") ;
return is_ok ;
}
static Bool
ephyrXVPrivIsAttrValueValid (KdAttributePtr a_attrs,
int a_attrs_len,
const char *a_attr_name,
int a_attr_value,
Bool *a_is_valid)
{
int i=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_attrs && a_attr_name && a_is_valid,
FALSE) ;
for (i=0; i < a_attrs_len; i++) {
if (a_attrs[i].name && strcmp (a_attrs[i].name, a_attr_name))
continue ;
if (a_attrs[i].min_value > a_attr_value ||
a_attrs[i].max_value < a_attr_value) {
*a_is_valid = FALSE ;
EPHYR_LOG_ERROR ("attribute was not valid\n"
"value:%d. min:%d. max:%d\n",
a_attr_value,
a_attrs[i].min_value,
a_attrs[i].max_value) ;
} else {
*a_is_valid = TRUE ;
}
return TRUE ;
}
return FALSE ;
}
static Bool
ephyrXVPrivGetImageBufSize (int a_port_id,
int a_image_id,
unsigned short a_width,
unsigned short a_height,
int *a_size)
{
Bool is_ok=FALSE ;
unsigned short width=a_width, height=a_height ;
EPHYR_RETURN_VAL_IF_FAIL (a_size, FALSE) ;
EPHYR_LOG ("enter\n") ;
if (!ephyrHostXVQueryImageAttributes (a_port_id, a_image_id,
&width, &height, a_size, NULL, NULL)) {
EPHYR_LOG_ERROR ("failed to get image attributes\n") ;
goto out ;
}
is_ok = TRUE ;
out:
EPHYR_LOG ("leave\n") ;
return is_ok ;
}
static Bool
ephyrXVPrivSaveImageToPortPriv (EphyrPortPriv *a_port_priv,
const unsigned char *a_image_buf,
int a_image_len)
{
Bool is_ok=FALSE ;
EPHYR_LOG ("enter\n") ;
if (a_port_priv->image_buf_size < a_image_len) {
unsigned char *buf=NULL ;
buf = realloc (a_port_priv->image_buf, a_image_len) ;
if (!buf) {
EPHYR_LOG_ERROR ("failed to realloc image buffer\n") ;
goto out ;
}
a_port_priv->image_buf = buf ;
a_port_priv->image_buf_size = a_image_len;
}
memmove (a_port_priv->image_buf, a_image_buf, a_image_len) ;
is_ok = TRUE ;
out:
return is_ok ;
EPHYR_LOG ("leave\n") ;
}
static void
ephyrStopVideo (KdScreenInfo *a_info, pointer a_port_priv, Bool a_exit)
{
EphyrPortPriv *port_priv = a_port_priv ;
EPHYR_RETURN_IF_FAIL (a_info && a_info->pScreen) ;
EPHYR_RETURN_IF_FAIL (port_priv) ;
EPHYR_LOG ("enter\n") ;
if (!ephyrHostXVStopVideo (a_info->pScreen->myNum,
port_priv->port_number)) {
EPHYR_LOG_ERROR ("XvStopVideo() failed\n") ;
}
EPHYR_LOG ("leave\n") ;
}
static int
ephyrSetPortAttribute (KdScreenInfo *a_info,
Atom a_attr_name,
int a_attr_value,
pointer a_port_priv)
{
int res=Success, host_atom=0 ;
EphyrPortPriv *port_priv = a_port_priv ;
Bool is_attr_valid=FALSE ;
EPHYR_RETURN_VAL_IF_FAIL (port_priv, BadMatch) ;
EPHYR_RETURN_VAL_IF_FAIL (port_priv->current_adaptor, BadMatch) ;
EPHYR_RETURN_VAL_IF_FAIL (port_priv->current_adaptor->pAttributes,
BadMatch) ;
EPHYR_RETURN_VAL_IF_FAIL (port_priv->current_adaptor->nAttributes,
BadMatch) ;
EPHYR_RETURN_VAL_IF_FAIL (ValidAtom (a_attr_name), BadMatch) ;
EPHYR_LOG ("enter, portnum:%d, atomid:%d, attr_name:%s, attr_val:%d\n",
port_priv->port_number,
(int)a_attr_name,
NameForAtom (a_attr_name),
a_attr_value) ;
if (!ephyrLocalAtomToHost (a_attr_name, &host_atom)) {
EPHYR_LOG_ERROR ("failed to convert local atom to host atom\n") ;
res = BadMatch ;
goto out ;
}
if (!ephyrXVPrivIsAttrValueValid (port_priv->current_adaptor->pAttributes,
port_priv->current_adaptor->nAttributes,
NameForAtom (a_attr_name),
a_attr_value,
&is_attr_valid)) {
EPHYR_LOG_ERROR ("failed to validate attribute %s\n",
NameForAtom (a_attr_name)) ;
/*
res = BadMatch ;
goto out ;
*/
}
if (!is_attr_valid) {
EPHYR_LOG_ERROR ("attribute %s is not valid\n",
NameForAtom (a_attr_name)) ;
/*
res = BadMatch ;
goto out ;
*/
}
if (!ephyrHostXVSetPortAttribute (port_priv->port_number,
host_atom,
a_attr_value)) {
EPHYR_LOG_ERROR ("failed to set port attribute\n") ;
res = BadMatch ;
goto out ;
}
res = Success ;
out:
EPHYR_LOG ("leave\n") ;
return res ;
}
static int
ephyrGetPortAttribute (KdScreenInfo *a_screen_info,
Atom a_attr_name,
int *a_attr_value,
pointer a_port_priv)
{
int res=Success, host_atom=0 ;
EphyrPortPriv *port_priv = a_port_priv ;
EPHYR_RETURN_VAL_IF_FAIL (port_priv, BadMatch) ;
EPHYR_RETURN_VAL_IF_FAIL (ValidAtom (a_attr_name), BadMatch) ;
EPHYR_LOG ("enter, portnum:%d, atomid:%d, attr_name:%s\n",
port_priv->port_number,
(int)a_attr_name,
NameForAtom (a_attr_name)) ;
if (!ephyrLocalAtomToHost (a_attr_name, &host_atom)) {
EPHYR_LOG_ERROR ("failed to convert local atom to host atom\n") ;
res = BadMatch ;
goto out ;
}
if (!ephyrHostXVGetPortAttribute (port_priv->port_number,
host_atom,
a_attr_value)) {
EPHYR_LOG_ERROR ("failed to get port attribute\n") ;
res = BadMatch ;
goto out ;
}
res = Success ;
out:
EPHYR_LOG ("leave\n") ;
return res ;
}
static void
ephyrQueryBestSize (KdScreenInfo *a_info,
Bool a_motion,
short a_src_w,
short a_src_h,
short a_drw_w,
short a_drw_h,
unsigned int *a_prefered_w,
unsigned int *a_prefered_h,
pointer a_port_priv)
{
int res=0 ;
EphyrPortPriv *port_priv = a_port_priv ;
EPHYR_RETURN_IF_FAIL (port_priv) ;
EPHYR_LOG ("enter\n") ;
res = ephyrHostXVQueryBestSize (port_priv->port_number,
a_motion,
a_src_w, a_src_h,
a_drw_w, a_drw_h,
a_prefered_w, a_prefered_h) ;
if (!res) {
EPHYR_LOG_ERROR ("Failed to query best size\n") ;
}
EPHYR_LOG ("leave\n") ;
}
static int
ephyrPutImage (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_src_x,
short a_src_y,
short a_drw_x,
short a_drw_y,
short a_src_w,
short a_src_h,
short a_drw_w,
short a_drw_h,
int a_id,
unsigned char *a_buf,
short a_width,
short a_height,
Bool a_sync,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
Bool is_ok=FALSE ;
int result=BadImplementation, image_size=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_info && a_info->pScreen, BadValue) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable, BadValue) ;
EPHYR_LOG ("enter\n") ;
if (!ephyrHostXVPutImage (a_info->pScreen->myNum,
port_priv->port_number,
a_id,
a_drw_x, a_drw_y, a_drw_w, a_drw_h,
a_src_x, a_src_y, a_src_w, a_src_h,
a_width, a_height, a_buf,
(EphyrHostBox*)REGION_RECTS (a_clipping_region),
REGION_NUM_RECTS (a_clipping_region))) {
EPHYR_LOG_ERROR ("EphyrHostXVPutImage() failed\n") ;
goto out ;
}
/*
* Now save the image so that we can resend it to host it
* later, in ReputImage.
*/
if (!ephyrXVPrivGetImageBufSize (port_priv->port_number,
a_id, a_width, a_height, &image_size)) {
EPHYR_LOG_ERROR ("failed to get image size\n") ;
/*this is a minor error so we won't get bail out abruptly*/
is_ok = FALSE ;
} else {
is_ok = TRUE ;
}
if (is_ok) {
if (!ephyrXVPrivSaveImageToPortPriv (port_priv, a_buf, image_size)) {
is_ok=FALSE ;
} else {
port_priv->image_id = a_id;
port_priv->drw_x = a_drw_x;
port_priv->drw_y = a_drw_y;
port_priv->drw_w = a_drw_w ;
port_priv->drw_h = a_drw_h ;
port_priv->src_x = a_src_x;
port_priv->src_y = a_src_y ;
port_priv->src_w = a_src_w ;
port_priv->src_h = a_src_h ;
port_priv->image_width = a_width ;
port_priv->image_height = a_height ;
}
}
if (!is_ok) {
if (port_priv->image_buf) {
free (port_priv->image_buf) ;
port_priv->image_buf = NULL ;
port_priv->image_buf_size = 0 ;
}
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrReputImage (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_drw_x,
short a_drw_y,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
int result=BadImplementation ;
EPHYR_RETURN_VAL_IF_FAIL (a_info->pScreen, FALSE) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable && port_priv, BadValue) ;
EPHYR_LOG ("enter\n") ;
if (!port_priv->image_buf_size || !port_priv->image_buf) {
EPHYR_LOG_ERROR ("has null image buf in cache\n") ;
goto out ;
}
if (!ephyrHostXVPutImage (a_info->pScreen->myNum,
port_priv->port_number,
port_priv->image_id,
a_drw_x, a_drw_y,
port_priv->drw_w, port_priv->drw_h,
port_priv->src_x, port_priv->src_y,
port_priv->src_w, port_priv->src_h,
port_priv->image_width, port_priv->image_height,
port_priv->image_buf,
(EphyrHostBox*)REGION_RECTS (a_clipping_region),
REGION_NUM_RECTS (a_clipping_region))) {
EPHYR_LOG_ERROR ("ephyrHostXVPutImage() failed\n") ;
goto out ;
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrPutVideo (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
BoxRec clipped_area, dst_box ;
int result=BadImplementation ;
int drw_x=0, drw_y=0, drw_w=0, drw_h=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_info->pScreen, BadValue) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable && port_priv, BadValue) ;
EPHYR_LOG ("enter\n") ;
dst_box.x1 = a_drw_x ;
dst_box.x2 = a_drw_x + a_drw_w;
dst_box.y1 = a_drw_y ;
dst_box.y2 = a_drw_y + a_drw_h;
if (!DoSimpleClip (&dst_box,
REGION_EXTENTS (pScreen->pScreen, a_clipping_region),
&clipped_area)) {
EPHYR_LOG_ERROR ("failed to simple clip\n") ;
goto out ;
}
drw_x = clipped_area.x1 ;
drw_y = clipped_area.y1 ;
drw_w = clipped_area.x2 - clipped_area.x1 ;
drw_h = clipped_area.y2 - clipped_area.y1 ;
if (!ephyrHostXVPutVideo (a_info->pScreen->myNum,
port_priv->port_number,
a_vid_x, a_vid_y, a_vid_w, a_vid_h,
a_drw_x, a_drw_y, a_drw_w, a_drw_h)) {
EPHYR_LOG_ERROR ("ephyrHostXVPutVideo() failed\n") ;
goto out ;
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrGetVideo (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
BoxRec clipped_area, dst_box ;
int result=BadImplementation ;
int drw_x=0, drw_y=0, drw_w=0, drw_h=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_info && a_info->pScreen, BadValue) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable && port_priv, BadValue) ;
EPHYR_LOG ("enter\n") ;
dst_box.x1 = a_drw_x ;
dst_box.x2 = a_drw_x + a_drw_w;
dst_box.y1 = a_drw_y ;
dst_box.y2 = a_drw_y + a_drw_h;
if (!DoSimpleClip (&dst_box,
REGION_EXTENTS (pScreen->pScreen, a_clipping_region),
&clipped_area)) {
EPHYR_LOG_ERROR ("failed to simple clip\n") ;
goto out ;
}
drw_x = clipped_area.x1 ;
drw_y = clipped_area.y1 ;
drw_w = clipped_area.x2 - clipped_area.x1 ;
drw_h = clipped_area.y2 - clipped_area.y1 ;
if (!ephyrHostXVGetVideo (a_info->pScreen->myNum,
port_priv->port_number,
a_vid_x, a_vid_y, a_vid_w, a_vid_h,
a_drw_x, a_drw_y, a_drw_w, a_drw_h)) {
EPHYR_LOG_ERROR ("ephyrHostXVGetVideo() failed\n") ;
goto out ;
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrPutStill (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
BoxRec clipped_area, dst_box ;
int result=BadImplementation ;
int drw_x=0, drw_y=0, drw_w=0, drw_h=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_info && a_info->pScreen, BadValue) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable && port_priv, BadValue) ;
EPHYR_LOG ("enter\n") ;
dst_box.x1 = a_drw_x ;
dst_box.x2 = a_drw_x + a_drw_w;
dst_box.y1 = a_drw_y ;
dst_box.y2 = a_drw_y + a_drw_h;
if (!DoSimpleClip (&dst_box,
REGION_EXTENTS (pScreen->pScreen, a_clipping_region),
&clipped_area)) {
EPHYR_LOG_ERROR ("failed to simple clip\n") ;
goto out ;
}
drw_x = clipped_area.x1 ;
drw_y = clipped_area.y1 ;
drw_w = clipped_area.x2 - clipped_area.x1 ;
drw_h = clipped_area.y2 - clipped_area.y1 ;
if (!ephyrHostXVPutStill (a_info->pScreen->myNum,
port_priv->port_number,
a_vid_x, a_vid_y, a_vid_w, a_vid_h,
a_drw_x, a_drw_y, a_drw_w, a_drw_h)) {
EPHYR_LOG_ERROR ("ephyrHostXVPutStill() failed\n") ;
goto out ;
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrGetStill (KdScreenInfo *a_info,
DrawablePtr a_drawable,
short a_vid_x, short a_vid_y,
short a_drw_x, short a_drw_y,
short a_vid_w, short a_vid_h,
short a_drw_w, short a_drw_h,
RegionPtr a_clipping_region,
pointer a_port_priv)
{
EphyrPortPriv *port_priv = a_port_priv ;
BoxRec clipped_area, dst_box ;
int result=BadImplementation ;
int drw_x=0, drw_y=0, drw_w=0, drw_h=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_info && a_info->pScreen, BadValue) ;
EPHYR_RETURN_VAL_IF_FAIL (a_drawable && port_priv, BadValue) ;
EPHYR_LOG ("enter\n") ;
dst_box.x1 = a_drw_x ;
dst_box.x2 = a_drw_x + a_drw_w;
dst_box.y1 = a_drw_y ;
dst_box.y2 = a_drw_y + a_drw_h;
if (!DoSimpleClip (&dst_box,
REGION_EXTENTS (pScreen->pScreen, a_clipping_region),
&clipped_area)) {
EPHYR_LOG_ERROR ("failed to simple clip\n") ;
goto out ;
}
drw_x = clipped_area.x1 ;
drw_y = clipped_area.y1 ;
drw_w = clipped_area.x2 - clipped_area.x1 ;
drw_h = clipped_area.y2 - clipped_area.y1 ;
if (!ephyrHostXVGetStill (a_info->pScreen->myNum,
port_priv->port_number,
a_vid_x, a_vid_y, a_vid_w, a_vid_h,
a_drw_x, a_drw_y, a_drw_w, a_drw_h)) {
EPHYR_LOG_ERROR ("ephyrHostXVGetStill() failed\n") ;
goto out ;
}
result = Success ;
out:
EPHYR_LOG ("leave\n") ;
return result ;
}
static int
ephyrQueryImageAttributes (KdScreenInfo *a_info,
int a_id,
unsigned short *a_w,
unsigned short *a_h,
int *a_pitches,
int *a_offsets)
{
int image_size=0 ;
EPHYR_RETURN_VAL_IF_FAIL (a_w && a_h, FALSE) ;
EPHYR_LOG ("enter: dim (%dx%d), pitches: %p, offsets: %p\n",
*a_w, *a_h, a_pitches, a_offsets) ;
if (!ephyrHostXVQueryImageAttributes (s_base_port_id,
a_id,
a_w, a_h,
&image_size,
a_pitches, a_offsets)) {
EPHYR_LOG_ERROR ("EphyrHostXVQueryImageAttributes() failed\n") ;
goto out ;
}
EPHYR_LOG ("image size: %d, dim (%dx%d)\n", image_size, *a_w, *a_h) ;
out:
EPHYR_LOG ("leave\n") ;
return image_size ;
}
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