/********************************************************************************* * recordMyDesktop * ********************************************************************************** * * * Copyright (C) 2006 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 void *GetFrame(ProgData *pdata){ int tlist_sel=0; unsigned char *dtap=NULL; //pointer switching among shared memory and //normal buffer pthread_mutex_t pmut,tmut; 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; pthread_mutex_init(&pmut,NULL); pthread_mutex_init(&tmut,NULL); 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_cond_wait(&pdata->time_cond,&tmut); if(Paused){ pthread_cond_wait(&pdata->pause_cond,&pmut); } } capture_busy=1; /*pthread_cond_wait(&pdata->pause_cond,&pdata->pause_cond_mutex);*/ //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=(levelargs.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); 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_cond_broadcast(&pdata->image_buffer_ready); capture_busy=0; } pthread_cond_broadcast(&pdata->image_buffer_ready); pthread_exit(&errno); }