[Spice-devel] [PATCH] server: spice_qxl_update_area_dirty_async

Alon Levy alevy at redhat.com
Sun Feb 19 04:37:16 PST 2012


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.

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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