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-rw-r--r--src/rmd_get_frames.c749
1 files changed, 749 insertions, 0 deletions
diff --git a/src/rmd_get_frames.c b/src/rmd_get_frames.c
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+++ b/src/rmd_get_frames.c
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+/******************************************************************************
+* recordMyDesktop *
+*******************************************************************************
+* *
+* Copyright (C) 2006,2007,2008 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 "config.h"
+#include "rmd_get_frames.h"
+
+#include "rmd_cache.h"
+#include "rmd_frame.h"
+#include "rmd_getzpixmap.h"
+#include "rmd_poll_events.h"
+#include "rmd_rectinsert.h"
+#include "rmd_threads.h"
+#include "rmd_update_image.h"
+#include "rmd_yuv_utils.h"
+#include "rmd_types.h"
+
+#include <X11/extensions/Xfixes.h>
+#include <X11/extensions/XShm.h>
+
+#include <limits.h>
+#include <pthread.h>
+#include <sys/shm.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+
+
+/* clip_event_area dejavu */
+static void clip_dummy_pointer_area(XRectangle *area, XRectangle *clip, XRectangle *res)
+{
+ res->x = (((area->x + area->width >= clip->x) &&
+ (area->x <= clip->x + clip->width)) ?
+ ((area->x <= clip->x) ? clip->x : area->x) : -1);
+
+ res->y = (((area->y + area->height >= clip->y) &&
+ (area->y <= clip->y + clip->height)) ?
+ ((area->y <= clip->y) ? clip->y : area->y) : -1);
+
+ res->width = (area->x <= clip->x) ? area->width - (clip->x - area->x) :
+ (area->x <= clip->x + clip->width) ?
+ (clip->width - area->x + clip->x < area->width) ?
+ clip->width - area->x + clip->x : area->width : 0;
+
+ res->height = (area->y <= clip->y) ? area->height - (clip->y - area->y) :
+ (area->y <= clip->y + clip->height) ?
+ (clip->height - area->y + clip->y < area->height) ?
+ clip->height - area->y + clip->y : area->height : 0;
+
+ if (res->x + res->width > clip->x + clip->width)
+ res->width = clip->x + clip->width - res->x;
+
+ if (res->y + res->height > clip->y + clip->height)
+ res->height = clip->y + clip->height - res->y;
+}
+
+#define MARK_BUFFER_AREA_C( data, \
+ x_tm, \
+ y_tm, \
+ width_tm, \
+ height_tm, \
+ buffer_width, \
+ __depth__) { \
+ \
+ register u_int##__depth__##_t *datapi = \
+ ((u_int##__depth__##_t *)data) + y_tm * buffer_width + x_tm; \
+ \
+ for(int k = 0; k < height_tm; k++) { \
+ for(int i = 0; i < width_tm; i++) { \
+ *datapi += 1; \
+ datapi++; \
+ } \
+ datapi += buffer_width - width_tm; \
+ } \
+}
+
+static void mark_buffer_area( unsigned char *data,
+ int x_tm, int y_tm,
+ int width_tm, int height_tm,
+ int buffer_width, int depth)
+{
+ if ((depth == 24) || (depth == 32)) {
+ MARK_BUFFER_AREA_C( data,
+ x_tm,
+ y_tm,
+ width_tm,
+ height_tm,
+ buffer_width,
+ 32);
+ } else {
+ MARK_BUFFER_AREA_C( data,
+ x_tm,
+ y_tm,
+ width_tm,
+ height_tm,
+ buffer_width,
+ 16);
+ }
+}
+
+//besides taking the first screenshot, this functions primary purpose is to
+//initialize the structures and memory.
+static int rmdFirstFrame(ProgData *pdata, Image *image)
+{
+ const XRectangle *rrect = &pdata->brwin.rrect;
+
+ if (pdata->args.noshared) {
+ image->ximage = XGetImage( pdata->dpy,
+ pdata->specs.root,
+ rrect->x,
+ rrect->y,
+ rrect->width,
+ rrect->height,
+ AllPlanes,
+ ZPixmap);
+ } else {
+ image->ximage = XShmCreateImage(pdata->dpy,
+ pdata->specs.visual,
+ pdata->specs.depth,
+ ZPixmap,
+ NULL,
+ &image->shm_info,
+ rrect->width,
+ rrect->height);
+
+ image->shm_info.shmid = shmget( IPC_PRIVATE,
+ image->ximage->bytes_per_line *
+ image->ximage->height,
+ IPC_CREAT|0777);
+
+ if (image->shm_info.shmid == -1) {
+ fprintf(stderr, "Failed to obtain Shared Memory segment!\n");
+ return 12;
+ }
+
+ image->shm_info.shmaddr = image->ximage->data = shmat(image->shm_info.shmid, NULL, 0);
+ image->shm_info.readOnly = False;
+ shmctl(image->shm_info.shmid, IPC_RMID, NULL);
+
+ if (!XShmAttach(pdata->dpy, &image->shm_info)) {
+ fprintf(stderr, "Failed to attach shared memory to proccess.\n");
+ return 12;
+ }
+
+ XShmGetImage( pdata->dpy,
+ pdata->specs.root,
+ image->ximage,
+ rrect->x,
+ rrect->y,
+ AllPlanes);
+ }
+
+ rmdUpdateYuvBuffer( &pdata->enc_data->yuv,
+ (unsigned char *)image->ximage->data,
+ NULL,
+ 0,
+ 0,
+ rrect->width,
+ rrect->height,
+ pdata->args.no_quick_subsample,
+ pdata->specs.depth);
+
+ return 0;
+}
+
+//make a deep copy
+static void rmdBRWinCpy(BRWindow *target, BRWindow *source)
+{
+ target->winrect = source->winrect;
+ target->rrect = source->rrect;
+ target->windowid = source->windowid;
+}
+
+//recenters the capture area to the mouse
+//without exiting the display bounding box
+static void rmdMoveCaptureArea( XRectangle *rect,
+ int cursor_x,
+ int cursor_y,
+ int width,
+ int height)
+{
+ int t_x = 0, t_y = 0;
+
+ t_x = cursor_x - rect->width / 2;
+ t_x = (t_x >> 1) << 1;
+ rect->x = (t_x < 0) ? 0 : ((t_x + rect->width > width) ? width - rect->width : t_x);
+ t_y = cursor_y - rect->height / 2;
+ t_y = (t_y >> 1) << 1;
+ rect->y = (t_y < 0 ) ? 0 : ((t_y + rect->height > height) ? height - rect->height : t_y);
+}
+
+
+static void rmdBlocksReset(unsigned int blocks_w, unsigned int blocks_h)
+{
+ memset(yblocks, 0, blocks_w * blocks_h * sizeof(*yblocks));
+ memset(ublocks, 0, blocks_w * blocks_h * sizeof(*ublocks));
+ memset(vblocks, 0, blocks_w * blocks_h * sizeof(*vblocks));
+}
+
+
+/**
+* Extract cache blocks from damage list
+*
+* \param root Root entry of the list with damaged areas
+*
+* \param x_offset left x of the recording area
+*
+* \param y_offset upper y of the recording area
+*
+* \param blocks_w Width of image in blocks
+*
+* \param blocks_h Height of image in blocks
+*/
+static void rmdBlocksFromList( RectArea **root,
+ unsigned int x_offset,
+ unsigned int y_offset,
+ unsigned int blocks_w,
+ unsigned int blocks_h)
+{
+ rmdBlocksReset(blocks_w, blocks_h);
+
+ for (RectArea *temp = *root; temp; temp = temp->next) {
+ int row_start, row_end, column_start, column_end;
+
+ column_start = ((int)(temp->rect.x - x_offset)) / Y_UNIT_WIDTH;
+ column_end = ((int)(temp->rect.x + (temp->rect.width - 1) - x_offset)) / Y_UNIT_WIDTH;
+ row_start = ((int)(temp->rect.y - y_offset)) / Y_UNIT_WIDTH;
+ row_end = ((int)(temp->rect.y + (temp->rect.height - 1) - y_offset)) / Y_UNIT_WIDTH;
+
+ for (int i = row_start; i < row_end + 1; i++) {
+ for (int j = column_start; j < column_end + 1; j++) {
+
+ int blockno = i * blocks_w + j;
+
+ yblocks[blockno] = 1;
+ ublocks[blockno] = 1;
+ vblocks[blockno] = 1;
+ }
+ }
+ }
+}
+
+
+static struct timespec us_to_timespec(unsigned us)
+{
+ return (struct timespec){
+ .tv_sec = us / 1000000,
+ .tv_nsec = (us % 1000000) * 1000,
+ };
+}
+
+
+/* subtract t2 from t1, return difference in microseconds */
+static unsigned timespec_delta_in_us(struct timespec *t1, struct timespec *t2)
+{
+ unsigned us = (t1->tv_sec - t2->tv_sec) * 1000000;
+
+ us += t1->tv_nsec / 1000;
+ us -= t2->tv_nsec / 1000;
+
+ return us;
+}
+
+
+/* Synchronize the next frame with either just time, or if there's
+ * an audio stream, with the audio stream.
+ *
+ * Returns wether a new frame should be acquired, or if the current
+ * yuv contents should be reused as-is (when too far behind).
+ */
+static boolean sync_next_frame(ProgData *pdata)
+{
+ int avd, delay_us;
+
+ assert(pdata);
+
+ if (pdata->args.nosound) {
+ struct timespec now;
+
+ /* when there's no audio timeline to synchronize with,
+ * drive avd entirely from CLOCK_MONOTONIC
+ */
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ if (pdata->last_frame_ts.tv_sec) {
+ pthread_mutex_lock(&pdata->avd_mutex);
+ pdata->avd -= timespec_delta_in_us(&now, &pdata->last_frame_ts);
+ avd = pdata->avd;
+ pthread_mutex_unlock(&pdata->avd_mutex);
+ }
+
+ pdata->last_frame_ts = now;
+ }
+
+ pthread_mutex_lock(&pdata->avd_mutex);
+ avd = pdata->avd;
+ pthread_mutex_unlock(&pdata->avd_mutex);
+
+ delay_us = (int)pdata->frametime_us + avd;
+ if (delay_us > 1000 /* only bother sleeping when > 1ms */) {
+ struct timespec delay;
+
+ delay = us_to_timespec(delay_us);
+ nanosleep(&delay, NULL);
+
+ /* update avd post-sleep */
+ pthread_mutex_lock(&pdata->avd_mutex);
+ avd = pdata->avd;
+ pthread_mutex_unlock(&pdata->avd_mutex);
+ }
+
+
+ /* refresh the frame unless we're way too far behind */
+ return (avd > 2 * -(int)MAX(pdata->frametime_us, pdata->periodtime_us));
+}
+
+
+/* Advances *frameno according to avd, returns wether frameno was advanced. */
+static boolean advance_frameno(ProgData *pdata, unsigned *frameno)
+{
+ int increment, avd;
+
+ assert(pdata);
+
+ pthread_mutex_lock(&pdata->avd_mutex);
+ avd = pdata->avd;
+
+ if (avd > (int)MAX(pdata->frametime_us, pdata->periodtime_us)) {
+ /* if we're far ahead, don't produce a frame */
+ increment = 0;
+ } else if (avd > 0) {
+ /* if we're just a little ahead, produce a frame */
+ increment = 1;
+ } else if (avd <= 2 * -(int)MAX(pdata->frametime_us, pdata->periodtime_us)) {
+ /* if we're far behind, clone as many frames as fit to ~avd=0 */
+ increment = -avd / (int)pdata->frametime_us;
+ } else {
+ /* if we're just a little behind produce a frame */
+ increment = 1;
+ }
+
+ pdata->avd += increment * (int)pdata->frametime_us;
+ pthread_mutex_unlock(&pdata->avd_mutex);
+
+ (*frameno) += increment;
+#if 0
+ printf("avd=%i increment=%u periodtime_us=%u frametime_us=%u\n", avd, increment, pdata->periodtime_us, pdata->frametime_us);
+#endif
+ return (increment > 0);
+}
+
+
+static boolean paused(ProgData *pdata)
+{
+ pthread_mutex_lock(&pdata->pause_mutex);
+ if (pdata->pause_state_changed) {
+ pdata->pause_state_changed = FALSE;
+
+ if (!pdata->paused) {
+ pdata->paused = TRUE;
+ fprintf(stderr, "STATE:PAUSED\n");
+ } else {
+ pdata->paused = FALSE;
+ fprintf(stderr, "STATE:RECORDING\n");
+ pthread_cond_broadcast(&pdata->pause_cond);
+ }
+ }
+ pthread_mutex_unlock(&pdata->pause_mutex);
+
+ return pdata->paused;
+}
+
+
+/* This thread just samples the recorded window in response to rmdTimer's
+ * triggers, updating the yuv buffer hopefully at the desired frame rate.
+ * Following every update, the frameno is propogated to capture_frameno
+ * and image_buffer_ready is signaled for the cache/encode side to consume the
+ * yuv buffer.
+ */
+void *rmdGetFrames(ProgData *pdata)
+{
+ int blocks_w = pdata->enc_data->yuv.y_width / Y_UNIT_WIDTH,
+ blocks_h = pdata->enc_data->yuv.y_height / Y_UNIT_WIDTH;
+ unsigned int msk_ret;
+ XRectangle mouse_pos_abs, mouse_pos_rel, mouse_pos_temp;
+ BRWindow temp_brwin;
+ Window root_ret, child_ret; //Frame
+ XFixesCursorImage *xcim = NULL;
+ Image image = {}, image_back = {}; //the image that holds
+ //the current full screenshot
+ int init_img1 = 0, init_img2 = 0, img_sel, d_buff;
+ unsigned frameno = 0;
+
+ rmdThreadsSetName("rmdGetFrames");
+
+ img_sel = d_buff = pdata->args.full_shots;
+
+ if ((init_img1 = rmdFirstFrame(pdata, &image) != 0)) {
+ if (pdata->args.encOnTheFly) {
+ if (remove(pdata->args.filename)) {
+ perror("Error while removing file:\n");
+ } else {
+ fprintf(stderr, "SIGABRT received, file %s removed\n",
+ pdata->args.filename);
+ }
+ } else {
+ rmdPurgeCache(pdata->cache_data, !pdata->args.nosound);
+ }
+
+ exit(init_img1);
+ }
+
+ if (d_buff) {
+ if ((init_img2 = rmdFirstFrame(pdata, &image_back) != 0)) {
+ if (pdata->args.encOnTheFly) {
+ if (remove(pdata->args.filename)) {
+ perror("Error while removing file:\n");
+ } else{
+ fprintf(stderr, "SIGABRT received, file %s removed\n",
+ pdata->args.filename);
+ }
+ } else {
+ rmdPurgeCache(pdata->cache_data, !pdata->args.nosound);
+ }
+
+ exit(init_img2);
+ }
+ }
+
+ if (!pdata->args.noframe) {
+ pdata->shaped_w = rmdFrameInit( pdata->dpy,
+ pdata->specs.screen,
+ pdata->specs.root,
+ pdata->brwin.rrect.x,
+ pdata->brwin.rrect.y,
+ pdata->brwin.rrect.width,
+ pdata->brwin.rrect.height);
+
+ XSelectInput(pdata->dpy, pdata->shaped_w, ExposureMask);
+ }
+
+ 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;
+
+ //This is the the place where we call XSelectInput
+ //and arrange so that we listen for damage on all
+ //windows
+ rmdInitEventsPolling(pdata);
+
+ while (pdata->running) {
+
+ if (paused(pdata)) {
+ /* just pump events while paused, so shortcuts can work for unpausing */
+ nanosleep(&(struct timespec) { .tv_nsec = 100000000 }, NULL);
+ rmdEventLoop(pdata);
+ continue;
+ }
+
+ if (sync_next_frame(pdata)) {
+ //read all events and construct list with damage
+ //events (if not full_shots)
+ rmdEventLoop(pdata);
+
+ /* TODO: refactor this inherited spaghetti into functions */
+
+ //switch back and front buffers (full_shots only)
+ if (d_buff)
+ img_sel = img_sel ? 0 : 1;
+
+ rmdBRWinCpy(&temp_brwin, &pdata->brwin);
+
+
+ if ( pdata->args.xfixes_cursor ||
+ pdata->args.have_dummy_cursor ||
+ pdata->args.follow_mouse) {
+
+
+ // Pointer sequence:
+ // * Mark previous position as dirty with rmdRectInsert()
+ // * Update to new position
+ // * Mark new position as dirty with rmdRectInsert()
+ if ( !pdata->args.full_shots &&
+ mouse_pos_temp.x >= 0 &&
+ mouse_pos_temp.y >= 0 &&
+ mouse_pos_temp.width > 0 &&
+ mouse_pos_temp.height > 0) {
+ rmdRectInsert(&pdata->rect_root, &mouse_pos_temp);
+ }
+
+ if (pdata->args.xfixes_cursor) {
+ xcim = XFixesGetCursorImage(pdata->dpy);
+ mouse_pos_abs.x = xcim->x - xcim->xhot;
+ mouse_pos_abs.y = xcim->y - xcim->yhot;
+ mouse_pos_abs.width = xcim->width;
+ mouse_pos_abs.height = xcim->height;
+ } else {
+ XQueryPointer( pdata->dpy,
+ pdata->specs.root,
+ &root_ret, &child_ret,
+ (int *)&mouse_pos_abs.x,
+ (int *)&mouse_pos_abs.y,
+ (int *)&mouse_pos_rel.x,
+ (int *)&mouse_pos_rel.y,
+ &msk_ret);
+ }
+
+ clip_dummy_pointer_area(&mouse_pos_abs, &temp_brwin.rrect, &mouse_pos_temp);
+ if ( mouse_pos_temp.x >= 0 &&
+ mouse_pos_temp.y >= 0 &&
+ mouse_pos_temp.width > 0 &&
+ mouse_pos_temp.height > 0) {
+
+ //there are 3 capture scenarios:
+ // * Xdamage
+ // * full-shots with double buffering
+ // * full-shots on a single buffer
+ //The last one cannot be reached through
+ //this code (see above how the d_buf variable is set), but
+ //even if it could, it would not be of interest regarding the
+ //marking of the cursor area. Single buffer means full repaint
+ //on every frame so there is no need for marking at all.
+
+ if (!pdata->args.full_shots) {
+ rmdRectInsert(&pdata->rect_root, &mouse_pos_temp);
+ } else if (d_buff) {
+ unsigned char *back_buff= img_sel ?
+ ((unsigned char*)image.ximage->data) :
+ ((unsigned char*)image_back.ximage->data);
+
+ mark_buffer_area(
+ back_buff,
+ mouse_pos_temp.x - temp_brwin.rrect.x,
+ mouse_pos_temp.y - temp_brwin.rrect.y,
+ mouse_pos_temp.width, mouse_pos_temp.height, temp_brwin.rrect.width,
+ pdata->specs.depth
+ );
+ }
+ }
+ }
+
+ if (pdata->args.follow_mouse) {
+ rmdMoveCaptureArea( &pdata->brwin.rrect,
+ mouse_pos_abs.x + pdata->args.xfixes_cursor ? xcim->xhot : 0,
+ mouse_pos_abs.y + pdata->args.xfixes_cursor ? xcim->yhot : 0,
+ pdata->specs.width,
+ pdata->specs.height);
+
+ if (!pdata->args.noframe)
+ rmdMoveFrame( pdata->dpy,
+ pdata->shaped_w,
+ temp_brwin.rrect.x,
+ temp_brwin.rrect.y);
+ }
+
+ if (!pdata->args.full_shots) {
+ pthread_mutex_lock(&pdata->yuv_mutex);
+ rmdUpdateImage( pdata->dpy,
+ &pdata->enc_data->yuv,
+ &pdata->specs,
+ &pdata->rect_root,
+ &temp_brwin,
+ pdata->enc_data,
+ &image,
+ pdata->args.noshared,
+ pdata->shm_opcode,
+ pdata->args.no_quick_subsample);
+
+ rmdBlocksFromList( &pdata->rect_root,
+ temp_brwin.rrect.x,
+ temp_brwin.rrect.y,
+ blocks_w,
+ blocks_h);
+
+ pthread_mutex_unlock(&pdata->yuv_mutex);
+ } else {
+ unsigned char *front_buff = !img_sel ? ((unsigned char*)image.ximage->data):
+ ((unsigned char*)image_back.ximage->data);
+ unsigned char *back_buff = !d_buff ? NULL : (img_sel ?
+ ((unsigned char*)image.ximage->data):
+ ((unsigned char*)image_back.ximage->data));
+
+ if (pdata->args.noshared) {
+ rmdGetZPixmap( pdata->dpy,
+ pdata->specs.root,
+ image.ximage->data,
+ temp_brwin.rrect.x,
+ temp_brwin.rrect.y,
+ temp_brwin.rrect.width,
+ temp_brwin.rrect.height);
+ } else {
+ XShmGetImage( pdata->dpy,
+ pdata->specs.root,
+ ((!img_sel) ? image.ximage : image_back.ximage),
+ temp_brwin.rrect.x,
+ temp_brwin.rrect.y,
+ AllPlanes);
+ }
+
+ pthread_mutex_lock(&pdata->yuv_mutex);
+ rmdBlocksReset(blocks_w, blocks_h);
+ rmdUpdateYuvBuffer( &pdata->enc_data->yuv,
+ front_buff,
+ back_buff,
+ 0,
+ 0,
+ temp_brwin.rrect.width,
+ temp_brwin.rrect.height,
+ pdata->args.no_quick_subsample,
+ pdata->specs.depth);
+
+ pthread_mutex_unlock(&pdata->yuv_mutex);
+ }
+
+ if (pdata->args.xfixes_cursor || pdata->args.have_dummy_cursor) {
+ int mouse_xoffset, mouse_yoffset;
+
+ //avoid segfaults
+ clip_dummy_pointer_area(&mouse_pos_abs, &temp_brwin.rrect, &mouse_pos_temp);
+ mouse_xoffset = mouse_pos_temp.x - mouse_pos_abs.x;
+ mouse_yoffset = mouse_pos_temp.y - mouse_pos_abs.y;
+
+ if ((mouse_xoffset < 0) || (mouse_xoffset > mouse_pos_abs.width))
+ mouse_xoffset = 0;
+
+ if ((mouse_yoffset < 0) || (mouse_yoffset > mouse_pos_abs.height))
+ mouse_yoffset = 0;
+
+ //draw the cursor
+ if ( (mouse_pos_temp.x >= 0) &&
+ (mouse_pos_temp.y >= 0) &&
+ (mouse_pos_temp.width > 0) &&
+ (mouse_pos_temp.height > 0)) {
+
+ if (pdata->args.xfixes_cursor) {
+ rmdXFixesPointerToYuv(
+ &pdata->enc_data->yuv,
+ ((unsigned char*)xcim->pixels),
+ mouse_pos_temp.x - temp_brwin.rrect.x,
+ mouse_pos_temp.y - temp_brwin.rrect.y,
+ mouse_pos_temp.width,
+ mouse_pos_temp.height,
+ mouse_xoffset,
+ mouse_yoffset,
+ xcim->width-mouse_pos_temp.width
+ );
+ } else {
+ rmdDummyPointerToYuv(
+ &pdata->enc_data->yuv,
+ pdata->dummy_pointer,
+ mouse_pos_temp.x - temp_brwin.rrect.x,
+ mouse_pos_temp.y - temp_brwin.rrect.y,
+ mouse_pos_temp.width,
+ mouse_pos_temp.height,
+ mouse_xoffset,
+ mouse_yoffset,
+ pdata->npxl
+ );
+ }
+
+ if (d_buff) {
+ //make previous cursor position dirty
+ //on the currently front buffer (which
+ //will be the back buffer next time it's
+ //used)
+ unsigned char *front_buff = !img_sel ?
+ ((unsigned char*)image.ximage->data) :
+ ((unsigned char*)image_back.ximage->data);
+
+ mark_buffer_area(
+ front_buff,
+ mouse_pos_temp.x - temp_brwin.rrect.x,
+ mouse_pos_temp.y - temp_brwin.rrect.y,
+ mouse_pos_temp.width,
+ mouse_pos_temp.height,
+ temp_brwin.rrect.width,
+ pdata->specs.depth
+ );
+ }
+
+ }
+
+ if (pdata->args.xfixes_cursor) {
+ XFree(xcim);
+ xcim = NULL;
+ }
+ }
+
+ if (!pdata->args.full_shots)
+ rmdClearList(&pdata->rect_root);
+ }
+
+ if (advance_frameno(pdata, &frameno)) {
+ /* notify the encoder of additional frames */
+ pthread_mutex_lock(&pdata->img_buff_ready_mutex);
+ pdata->capture_frameno = frameno;
+ pthread_cond_signal(&pdata->image_buffer_ready);
+ pthread_mutex_unlock(&pdata->img_buff_ready_mutex);
+ }
+ }
+
+ /* Make sure the encoder/cacher doen't get lost in pthread_cond_wait indefinitely,
+ * now that !pdata->running they will exit their wait loops.
+ */
+ pthread_cond_signal(&pdata->image_buffer_ready);
+
+ /* Same for waiters on pause_cond in case we quit from being paused */
+ pthread_mutex_lock(&pdata->pause_mutex);
+ pdata->paused = FALSE;
+ pthread_cond_broadcast(&pdata->pause_cond);
+ pthread_mutex_unlock(&pdata->pause_mutex);
+
+ if (!pdata->args.noframe)
+ XDestroyWindow(pdata->dpy, pdata->shaped_w);
+
+ if (!pdata->args.noshared) {
+ XShmDetach(pdata->dpy, &image.shm_info);
+ shmdt(image.shm_info.shmaddr);
+ if (d_buff) {
+ XShmDetach(pdata->dpy, &image_back.shm_info);
+ shmdt(image_back.shm_info.shmaddr);
+ }
+ }
+
+ pthread_exit(&errno);
+}
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