[Spice-devel] [PATCH] server: spice_qxl_update_area_dirty_async

Alon Levy alevy at redhat.com
Sun Feb 19 04:53:08 PST 2012


On Sun, Feb 19, 2012 at 02:37:16PM +0200, Alon Levy wrote:
> Bumps spice to 0.9.2, since it adds a new symbol. This will be 0.8.4
> in 0.8 branch - the syms file is updated to contain 0.8.3 and 0.8.4.

Forgot to change this comment. I'll drop the 0.10.1->0.10.2 change since
Marc Andre sent a patch that does that already.

> 
> Add an asynchronous version of update_area that updates the dirty
> rectangles, similarily to the sync one. The existing async version
> doesn't pass the dirty list at all, which is good for
> QXL_IO_UPDATE_AREA, but bad for the monitor command screen_dump and
> vnc/sdl interoperability.
> 
> RHBZ: 747011
> FDBZ: 41622
> ---
>  configure.ac             |    2 +-
>  server/red_dispatcher.c  |   42 +++++++++++++++++++++++++++----
>  server/red_dispatcher.h  |    9 +++++++
>  server/red_worker.c      |   60 +++++++++++++++++++++++++++++++++-------------
>  server/red_worker.h      |    3 ++
>  server/spice-server.syms |    5 ++++
>  server/spice.h           |    6 ++++-
>  7 files changed, 102 insertions(+), 25 deletions(-)
> 
> diff --git a/configure.ac b/configure.ac
> index 1c15e74..a617096 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -2,7 +2,7 @@ AC_PREREQ([2.57])
>  
>  m4_define([SPICE_MAJOR], 0)
>  m4_define([SPICE_MINOR], 10)
> -m4_define([SPICE_MICRO], 1)
> +m4_define([SPICE_MICRO], 2)
>  
>  AC_INIT(spice, [SPICE_MAJOR.SPICE_MINOR.SPICE_MICRO], [], spice)
>  
> diff --git a/server/red_dispatcher.c b/server/red_dispatcher.c
> index 321232b..5b8097c 100644
> --- a/server/red_dispatcher.c
> +++ b/server/red_dispatcher.c
> @@ -334,6 +334,28 @@ static void red_dispatcher_update_area_async(RedDispatcher *dispatcher,
>                              &payload);
>  }
>  
> +static void red_dispatcher_update_area_dirty_async(RedDispatcher *dispatcher,
> +                                       uint32_t surface_id,
> +                                       struct QXLRect *qxl_area,
> +                                       struct QXLRect *qxl_dirty_rects,
> +                                       uint32_t num_dirty_rects,
> +                                       uint32_t clear_dirty_region,
> +                                       uint64_t cookie)
> +{
> +    RedWorkerMessage message = RED_WORKER_MESSAGE_UPDATE_DIRTY_ASYNC;
> +    RedWorkerMessageUpdateDirtyAsync payload;
> +
> +    payload.base.cmd = async_command_alloc(dispatcher, message, cookie);
> +    payload.surface_id = surface_id;
> +    payload.qxl_area = *qxl_area;
> +    payload.qxl_dirty_rects = qxl_dirty_rects;
> +    payload.num_dirty_rects = num_dirty_rects;
> +    payload.clear_dirty_region = clear_dirty_region;
> +    dispatcher_send_message(&dispatcher->dispatcher,
> +                            message,
> +                            &payload);
> +}
> +
>  static void qxl_worker_update_area(QXLWorker *qxl_worker, uint32_t surface_id,
>                                     QXLRect *qxl_area, QXLRect *qxl_dirty_rects,
>                                     uint32_t num_dirty_rects, uint32_t clear_dirty_region)
> @@ -870,6 +892,17 @@ void spice_qxl_loadvm_commands(QXLInstance *instance, struct QXLCommandExt *ext,
>  }
>  
>  SPICE_GNUC_VISIBLE
> +void spice_qxl_update_area_dirty_async(QXLInstance *instance, uint32_t surface_id,
> +                                       struct QXLRect *qxl_area, struct QXLRect *dirty_rects,
> +                                       uint32_t num_dirty_rects, uint32_t clear_dirty_region,
> +                                       uint64_t cookie)
> +{
> +    red_dispatcher_update_area_dirty_async(instance->st->dispatcher, surface_id, qxl_area,
> +                                           dirty_rects, num_dirty_rects, clear_dirty_region,
> +                                           cookie);
> +}
> +
> +SPICE_GNUC_VISIBLE
>  void spice_qxl_update_area_async(QXLInstance *instance, uint32_t surface_id, QXLRect *qxl_area,
>                                   uint32_t clear_dirty_region, uint64_t cookie)
>  {
> @@ -926,10 +959,11 @@ void red_dispatcher_async_complete(struct RedDispatcher *dispatcher,
>      pthread_mutex_unlock(&dispatcher->async_lock);
>      switch (async_command->message) {
>      case RED_WORKER_MESSAGE_UPDATE_ASYNC:
> -        break;
> +    case RED_WORKER_MESSAGE_UPDATE_DIRTY_ASYNC:
>      case RED_WORKER_MESSAGE_ADD_MEMSLOT_ASYNC:
> -        break;
>      case RED_WORKER_MESSAGE_DESTROY_SURFACES_ASYNC:
> +    case RED_WORKER_MESSAGE_DESTROY_SURFACE_WAIT_ASYNC:
> +    case RED_WORKER_MESSAGE_FLUSH_SURFACES_ASYNC:
>          break;
>      case RED_WORKER_MESSAGE_CREATE_PRIMARY_SURFACE_ASYNC:
>          red_dispatcher_create_primary_surface_complete(dispatcher);
> @@ -937,10 +971,6 @@ void red_dispatcher_async_complete(struct RedDispatcher *dispatcher,
>      case RED_WORKER_MESSAGE_DESTROY_PRIMARY_SURFACE_ASYNC:
>          red_dispatcher_destroy_primary_surface_complete(dispatcher);
>          break;
> -    case RED_WORKER_MESSAGE_DESTROY_SURFACE_WAIT_ASYNC:
> -        break;
> -    case RED_WORKER_MESSAGE_FLUSH_SURFACES_ASYNC:
> -        break;
>      default:
>          WARN("unexpected message");
>      }
> diff --git a/server/red_dispatcher.h b/server/red_dispatcher.h
> index 36db4e3..8bf7433 100644
> --- a/server/red_dispatcher.h
> +++ b/server/red_dispatcher.h
> @@ -89,6 +89,15 @@ typedef struct RedWorkerMessageUpdateAsync {
>      uint32_t clear_dirty_region;
>  } RedWorkerMessageUpdateAsync;
>  
> +typedef struct RedWorkerMessageUpdateDirtyAsync {
> +    RedWorkerMessageAsync base;
> +    uint32_t surface_id;
> +    QXLRect qxl_area;
> +    QXLRect *qxl_dirty_rects;
> +    uint32_t num_dirty_rects;
> +    uint32_t clear_dirty_region;
> +} RedWorkerMessageUpdateDirtyAsync;
> +
>  typedef struct RedWorkerMessageAddMemslot {
>      QXLDevMemSlot mem_slot;
>  } RedWorkerMessageAddMemslot;
> diff --git a/server/red_worker.c b/server/red_worker.c
> index 4c73952..19a0632 100644
> --- a/server/red_worker.c
> +++ b/server/red_worker.c
> @@ -43,6 +43,7 @@
>  #include <netinet/tcp.h>
>  #include <setjmp.h>
>  #include <openssl/ssl.h>
> +#include <inttypes.h>
>  
>  #include <spice/qxl_dev.h>
>  #include "spice.h"
> @@ -10237,17 +10238,12 @@ static void surface_dirty_region_to_rects(RedSurface *surface,
>      free(dirty_rects);
>  }
>  
> -void handle_dev_update_async(void *opaque, void *payload)
> +void handle_dev_update_async_helper(RedWorker *worker, uint32_t surface_id, QXLRect qxl_area,
> +        QXLRect *qxl_dirty_rects, uint32_t num_dirty_rects, uint32_t clear_dirty_region)
>  {
> -    RedWorker *worker = opaque;
> -    RedWorkerMessageUpdateAsync *msg = payload;
>      SpiceRect rect;
> -    QXLRect *qxl_dirty_rects;
> -    uint32_t num_dirty_rects;
>      RedSurface *surface;
> -    uint32_t surface_id = msg->surface_id;
> -    QXLRect qxl_area = msg->qxl_area;
> -    uint32_t clear_dirty_region = msg->clear_dirty_region;
> +    int free_dirty = 0;
>  
>      red_get_rect_ptr(&rect, &qxl_area);
>      flush_display_commands(worker);
> @@ -10256,20 +10252,45 @@ void handle_dev_update_async(void *opaque, void *payload)
>  
>      validate_surface(worker, surface_id);
>      red_update_area(worker, &rect, surface_id);
> -    if (!worker->qxl->st->qif->update_area_complete) {
> +    if (!worker->qxl->st->qif->update_area_complete && !qxl_dirty_rects) {
>          return;
>      }
> +
>      surface = &worker->surfaces[surface_id];
> -    num_dirty_rects = pixman_region32_n_rects(&surface->draw_dirty_region);
> -    if (num_dirty_rects == 0) {
> -        return;
> +    if (!qxl_dirty_rects) {
> +        num_dirty_rects = pixman_region32_n_rects(&surface->draw_dirty_region);
> +        if (num_dirty_rects != 0) {
> +            qxl_dirty_rects = spice_new0(QXLRect, num_dirty_rects);
> +            free_dirty = 1;
> +        }
>      }
> -    qxl_dirty_rects = spice_new0(QXLRect, num_dirty_rects);
> -    surface_dirty_region_to_rects(surface, qxl_dirty_rects, num_dirty_rects,
> -                                  clear_dirty_region);
> -    worker->qxl->st->qif->update_area_complete(worker->qxl, surface_id,
> +    if (num_dirty_rects > 0) {
> +        surface_dirty_region_to_rects(surface, qxl_dirty_rects, num_dirty_rects,
> +                                      clear_dirty_region);
> +    }
> +    if (worker->qxl->st->qif->update_area_complete) {
> +        worker->qxl->st->qif->update_area_complete(worker->qxl, surface_id,
>                                            qxl_dirty_rects, num_dirty_rects);
> -    free(qxl_dirty_rects);
> +    }
> +    if (free_dirty) {
> +        free(qxl_dirty_rects);
> +    }
> +}
> +
> +void handle_dev_update_dirty_async(void *opaque, void *payload)
> +{
> +    RedWorkerMessageUpdateDirtyAsync *msg = payload;
> +
> +    handle_dev_update_async_helper((RedWorker *)opaque, msg->surface_id,
> +        msg->qxl_area, msg->qxl_dirty_rects, msg->num_dirty_rects, msg->clear_dirty_region);
> +}
> +
> +void handle_dev_update_async(void *opaque, void *payload)
> +{
> +    RedWorkerMessageUpdateAsync *msg = payload;
> +
> +    handle_dev_update_async_helper((RedWorker *)opaque, msg->surface_id,
> +        msg->qxl_area, NULL, 0, msg->clear_dirty_region);
>  }
>  
>  void handle_dev_update(void *opaque, void *payload)
> @@ -10914,6 +10935,11 @@ static void register_callbacks(Dispatcher *dispatcher)
>                                  sizeof(RedWorkerMessageUpdateAsync),
>                                  DISPATCHER_ASYNC);
>      dispatcher_register_handler(dispatcher,
> +                                RED_WORKER_MESSAGE_UPDATE_DIRTY_ASYNC,
> +                                handle_dev_update_dirty_async,
> +                                sizeof(RedWorkerMessageUpdateDirtyAsync),
> +                                DISPATCHER_ASYNC);
> +    dispatcher_register_handler(dispatcher,
>                                  RED_WORKER_MESSAGE_ADD_MEMSLOT,
>                                  handle_dev_add_memslot,
>                                  sizeof(RedWorkerMessageAddMemslot),
> diff --git a/server/red_worker.h b/server/red_worker.h
> index 1f63d01..987563c 100644
> --- a/server/red_worker.h
> +++ b/server/red_worker.h
> @@ -85,6 +85,9 @@ enum {
>      RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE,
>      RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE,
>  
> +    /* support monitor async screen dump */
> +    RED_WORKER_MESSAGE_UPDATE_DIRTY_ASYNC,
> +
>      RED_WORKER_MESSAGE_COUNT // LAST
>  };
>  
> diff --git a/server/spice-server.syms b/server/spice-server.syms
> index d9beec3..8b5a2ff 100644
> --- a/server/spice-server.syms
> +++ b/server/spice-server.syms
> @@ -101,3 +101,8 @@ global:
>      spice_server_add_client;
>      spice_server_add_ssl_client;
>  } SPICE_SERVER_0.10.0;
> +
> +SPICE_SERVER_0.10.2 {
> +global:
> +    spice_qxl_update_area_dirty_async;
> +} SPICE_SERVER_0.10.1;
> diff --git a/server/spice.h b/server/spice.h
> index 7397655..a096fbc 100644
> --- a/server/spice.h
> +++ b/server/spice.h
> @@ -22,7 +22,7 @@
>  #include <sys/socket.h>
>  #include <spice/qxl_dev.h>
>  
> -#define SPICE_SERVER_VERSION 0x000a01 /* release 0.10.1 */
> +#define SPICE_SERVER_VERSION 0x000a02 /* release 0.10.2 */
>  
>  /* interface base type */
>  
> @@ -153,6 +153,10 @@ void spice_qxl_loadvm_commands(QXLInstance *instance, struct QXLCommandExt *ext,
>  /* async versions of commands. when complete spice calls async_complete */
>  void spice_qxl_update_area_async(QXLInstance *instance, uint32_t surface_id, QXLRect *qxl_area,
>                                   uint32_t clear_dirty_region, uint64_t cookie);
> +void spice_qxl_update_area_dirty_async(QXLInstance *instance, uint32_t surface_id,
> +                                       struct QXLRect *qxl_area, struct QXLRect *dirty_rects,
> +                                       uint32_t num_dirty_rects, uint32_t clear_dirty_region,
> +                                       uint64_t cookie);
>  void spice_qxl_add_memslot_async(QXLInstance *instance, QXLDevMemSlot *slot, uint64_t cookie);
>  void spice_qxl_destroy_surfaces_async(QXLInstance *instance, uint64_t cookie);
>  void spice_qxl_destroy_primary_surface_async(QXLInstance *instance, uint32_t surface_id, uint64_t cookie);
> -- 
> 1.7.9
> 
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