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GUACAMOLE-184: Only send contents of surface if non-empty.

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This commit is contained in:
Michael Jumper 2016-09-12 23:05:18 -07:00
parent 5d5fbb4d45
commit bd3d482ade
1 changed files with 13 additions and 8 deletions
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21
src/common/surface.c
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@ -1718,15 +1718,20 @@ void guac_common_surface_dup(guac_common_surface* surface, guac_user* user,
guac_protocol_send_size(socket, surface->layer,
surface->width, surface->height);
/* Get entire surface */
cairo_surface_t* rect = cairo_image_surface_create_for_data(
surface->buffer, CAIRO_FORMAT_RGB24,
surface->width, surface->height, surface->stride);
/* Send contents of layer, if non-empty */
if (surface->width > 0 && surface->height > 0) {
/* Send PNG for rect */
guac_user_stream_png(user, socket, GUAC_COMP_OVER, surface->layer,
0, 0, rect);
cairo_surface_destroy(rect);
/* Get entire surface */
cairo_surface_t* rect = cairo_image_surface_create_for_data(
surface->buffer, CAIRO_FORMAT_RGB24,
surface->width, surface->height, surface->stride);
/* Send PNG for rect */
guac_user_stream_png(user, socket, GUAC_COMP_OVER, surface->layer,
0, 0, rect);
cairo_surface_destroy(rect);
}
complete:
pthread_mutex_unlock(&surface->_lock);