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/******************************************************************************
* recordMyDesktop *
*******************************************************************************
* *
* Copyright (C) 2006,2007 John Varouhakis *
* *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
* *
* *
* *
* For further information contact me at johnvarouhakis@gmail.com *
******************************************************************************/
#include <recordmydesktop.h>
void *GetFrame(ProgData *pdata){
int tlist_sel=0;
unsigned char *dtap=NULL; //pointer switching among shared memory and
//normal buffer
uint msk_ret;
WGeometry mouse_pos_abs,mouse_pos_rel,mouse_pos_temp;
Window root_ret,child_ret;
int pixel_total=pdata->brwin.rgeom.width*pdata->brwin.rgeom.height;
XFixesCursorImage *xcim=NULL;
mouse_pos_abs.x=mouse_pos_temp.x=0;
mouse_pos_abs.y=mouse_pos_temp.y=0;
mouse_pos_abs.width=mouse_pos_temp.width=pdata->dummy_p_size;
mouse_pos_abs.height=mouse_pos_temp.height=pdata->dummy_p_size;
while(pdata->running){
//if we are left behind we must not wait.
//also before actually pausing we must make sure the streams
//are synced. sound stops so this should only happen quickly.
if(pdata->avd>0){
pthread_mutex_lock(&time_mutex);
pthread_cond_wait(&pdata->time_cond,&time_mutex);
pthread_mutex_unlock(&time_mutex);
if(Paused){
pthread_mutex_lock(&pause_mutex);
pthread_cond_wait(&pdata->pause_cond,&pause_mutex);
pthread_mutex_unlock(&pause_mutex);
}
}
capture_busy=1;
//mutexes and lists with changes are useless when full_shots is enabled
if(!pdata->args.full_shots){
tlist_sel=pdata->list_selector;
pdata->list_selector=((pdata->list_selector+1)%2);
pthread_mutex_lock(&pdata->list_mutex[tlist_sel]);
}
//here we measure the list and decide which way we will go
if(!pdata->args.nocondshared){
int level=0;
RectArea *temp=pdata->rect_root[tlist_sel];
if(temp!=NULL){
do{
level+=temp->geom.width*temp->geom.height;
temp=temp->next;
}while(temp!=NULL);
level*=100;
level/=pixel_total;
pdata->args.noshared=(level<pdata->args.shared_thres);
}
}
if(pdata->args.xfixes_cursor){
//xfixes pointer sequence
//update previous_position
//(if full_shots is enabled this is skipped since it's pointless)
if(!pdata->args.full_shots){
CLIP_DUMMY_POINTER_AREA(mouse_pos_abs,&pdata->brwin,
&mouse_pos_temp);
if((mouse_pos_temp.x>=0)&&
(mouse_pos_temp.y>=0)&&
(mouse_pos_temp.width>0)&&
(mouse_pos_temp.height>0))
RectInsert(&pdata->rect_root[tlist_sel],&mouse_pos_temp);
}
xcim=XFixesGetCursorImage(pdata->dpy);
mouse_pos_abs.x=xcim->x;
mouse_pos_abs.y=xcim->y;
mouse_pos_abs.width=xcim->width;
mouse_pos_abs.height=xcim->height;
}
if(pdata->args.have_dummy_cursor){
//dummy pointer sequence
//update previous_position
//(if full_shots is enabled this is skipped since it's pointless)
if(!pdata->args.full_shots){
CLIP_DUMMY_POINTER_AREA(mouse_pos_abs,&pdata->brwin,
&mouse_pos_temp);
if((mouse_pos_temp.x>=0)&&
(mouse_pos_temp.y>=0)&&
(mouse_pos_temp.width>0)&&
(mouse_pos_temp.height>0))
RectInsert(&pdata->rect_root[tlist_sel],&mouse_pos_temp);
}
//find new one
XQueryPointer(pdata->dpy,
pdata->specs.root,
&root_ret,&child_ret,
&mouse_pos_abs.x,&mouse_pos_abs.y,
&mouse_pos_rel.x,&mouse_pos_rel.y,&msk_ret);
}
if(!pdata->args.noshared)
XShmGetImage(pdata->dpy,pdata->specs.root,pdata->shimage,
(pdata->brwin.rgeom.x),
(pdata->brwin.rgeom.y),AllPlanes);
if(!pdata->args.full_shots)
UpdateImage(pdata->dpy,
&pdata->enc_data->yuv,
&pdata->yuv_mutex,
&pdata->specs,
&pdata->rect_root[tlist_sel],
&pdata->brwin,
pdata->enc_data,
((pdata->args.noshared)?
(pdata->datatemp):
(pdata->shimage->data)),
pdata->args.noshared,
pdata->args.no_quick_subsample);
else{
dtap=(((pdata->args.nocondshared)&&(!pdata->args.noshared))?
((unsigned char*)pdata->shimage->data):
((unsigned char*)pdata->image->data));
if(pdata->args.noshared){
GetZPixmap( pdata->dpy,
pdata->specs.root,
pdata->image->data,
pdata->brwin.rgeom.x,
pdata->brwin.rgeom.y,
pdata->brwin.rgeom.width,
pdata->brwin.rgeom.height);
}
pthread_mutex_lock(&pdata->yuv_mutex);
UPDATE_YUV_BUFFER((&pdata->enc_data->yuv),dtap,
(pdata->enc_data->x_offset),
(pdata->enc_data->y_offset),
(pdata->brwin.rgeom.width),
(pdata->brwin.rgeom.height),
pdata->args.noshared,
pdata->args.no_quick_subsample,
pdata->specs.depth);
pthread_mutex_unlock(&pdata->yuv_mutex);
}
if(pdata->args.xfixes_cursor){
//avoid segfaults
CLIP_DUMMY_POINTER_AREA(mouse_pos_abs,&pdata->brwin,
&mouse_pos_temp);
//draw the cursor
if((mouse_pos_temp.x>=0)&&
(mouse_pos_temp.y>=0)&&
(mouse_pos_temp.width>0)&&
(mouse_pos_temp.height>0)){
XFIXES_POINTER_TO_YUV((&pdata->enc_data->yuv),
((unsigned char*)xcim->pixels),
(mouse_pos_temp.x-
pdata->brwin.rgeom.x+
pdata->enc_data->x_offset),
(mouse_pos_temp.y-
pdata->brwin.rgeom.y+
pdata->enc_data->y_offset),
mouse_pos_temp.width,
mouse_pos_temp.height,
(xcim->width-mouse_pos_temp.width));
}
XFree(xcim);
xcim=NULL;
}
if(pdata->args.have_dummy_cursor){
//avoid segfaults
CLIP_DUMMY_POINTER_AREA(mouse_pos_abs,&pdata->brwin,
&mouse_pos_temp);
//draw the cursor
if((mouse_pos_temp.x>=0)&&
(mouse_pos_temp.y>=0)&&
(mouse_pos_temp.width>0)&&
(mouse_pos_temp.height>0)){
DUMMY_POINTER_TO_YUV((&pdata->enc_data->yuv),
pdata->dummy_pointer,
(mouse_pos_temp.x-
pdata->brwin.rgeom.x+
pdata->enc_data->x_offset),
(mouse_pos_temp.y-
pdata->brwin.rgeom.y+
pdata->enc_data->y_offset),
mouse_pos_temp.width,
mouse_pos_temp.height,
pdata->npxl);
}
}
if(!pdata->args.full_shots){
ClearList(&pdata->rect_root[tlist_sel]);
pthread_mutex_unlock(&pdata->list_mutex[tlist_sel]);
}
if(encoder_busy){
frames_lost++;
}
pthread_mutex_lock(&pdata->img_buff_ready_mutex);
pthread_cond_broadcast(&pdata->image_buffer_ready);
pthread_mutex_unlock(&pdata->img_buff_ready_mutex);
capture_busy=0;
}
pthread_mutex_lock(&pdata->img_buff_ready_mutex);
pthread_cond_broadcast(&pdata->image_buffer_ready);
pthread_mutex_unlock(&pdata->img_buff_ready_mutex);
pthread_exit(&errno);
}
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