For non-gl/remote clients, if there is no stream associated with
the DisplayChannel, then we create a new stream. Otherwise, we
just update the current stream's timestamp.
v2: (suggestions and fixups from Frediano)
- Moved the gl_draw_stream object from DCC to DC
- Moved the stream initialization code from display_channel_create_stream()
into a separate function that is reused when creating gl_draw_stream
Cc: Frediano Ziglio <freddy77@xxxxxxxxx>
Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Cc: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
Cc: Dongwon Kim <dongwon.kim@xxxxxxxxx>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>
---
server/dcc.cpp | 9 +++
server/display-channel-private.h | 1 +
server/display-channel.cpp | 1 +
server/video-stream.cpp | 113 ++++++++++++++++++++++---------
server/video-stream.h | 2 +
5 files changed, 94 insertions(+), 32 deletions(-)
diff --git a/server/dcc.cpp b/server/dcc.cpp
index ca73470a..92e69860 100644
--- a/server/dcc.cpp
+++ b/server/dcc.cpp
@@ -523,6 +523,15 @@ RedPipeItemPtr dcc_gl_draw_item_new(RedChannelClient *rcc, void *data, int num)
return RedPipeItemPtr();
}
+ if (!dcc->is_gl_client()) {
+ if (!display_channel_update_gl_draw_stream(dcc, draw)) {
+ red_channel_warning(rcc->get_channel(),
+ "Cannot create or update stream");
+ rcc->disconnect();
+ return RedPipeItemPtr();
+ }
+ }
+
dcc->priv->gl_draw_ongoing = TRUE;
auto item = red::make_shared<RedGlDrawItem>();
item->draw = *draw;
diff --git a/server/display-channel-private.h b/server/display-channel-private.h
index 04ac2c0d..e0693f54 100644
--- a/server/display-channel-private.h
+++ b/server/display-channel-private.h
@@ -110,6 +110,7 @@ struct DisplayChannelPrivate
uint32_t stream_count;
std::array<VideoStream, NUM_STREAMS> streams_buf;
VideoStream *free_streams;
+ VideoStream *gl_draw_stream;
Ring streams;
std::array<ItemTrace, NUM_TRACE_ITEMS> items_trace;
uint32_t next_item_trace;
diff --git a/server/display-channel.cpp b/server/display-channel.cpp
index 4bd0cf41..53a4724d 100644
--- a/server/display-channel.cpp
+++ b/server/display-channel.cpp
@@ -2172,6 +2172,7 @@ display_channel_new(RedsState *reds, QXLInstance *qxl,
video_codecs, n_surfaces);
if (display) {
display_channel_set_stream_video(display.get(), stream_video);
+ display->priv->gl_draw_stream = nullptr;
}
return display;
}
diff --git a/server/video-stream.cpp b/server/video-stream.cpp
index 056d0c31..18e98108 100644
--- a/server/video-stream.cpp
+++ b/server/video-stream.cpp
@@ -366,48 +366,47 @@ static VideoStream *display_channel_stream_try_new(DisplayChannel *display)
return stream;
}
-static void display_channel_create_stream(DisplayChannel *display, Drawable *drawable)
+static void display_channel_init_stream(DisplayChannel *display,
+ VideoStream *stream,
+ Drawable *drawable,
+ SpiceRect* src_rect)
{
- DisplayChannelClient *dcc;
- VideoStream *stream;
- SpiceRect* src_rect;
-
- spice_assert(!drawable->stream);
-
- if (!(stream = display_channel_stream_try_new(display))) {
- return;
- }
-
- spice_assert(drawable->red_drawable->type == QXL_DRAW_COPY);
- src_rect = &drawable->red_drawable->u.copy.src_area;
+ SpiceBitmap *bitmap;
+ uint64_t duration;
ring_add(&display->priv->streams, &stream->link);
- stream->current = drawable;
- stream->last_time = drawable->creation_time;
+ stream->last_time = spice_get_monotonic_time_ns();
stream->width = src_rect->right - src_rect->left;
stream->height = src_rect->bottom - src_rect->top;
- stream->dest_area = drawable->red_drawable->bbox;
+ stream->dest_area = *src_rect;
stream->refs = 1;
- SpiceBitmap *bitmap = &drawable->red_drawable->u.copy.src_bitmap->u.bitmap;
- stream->top_down = !!(bitmap->flags & SPICE_BITMAP_FLAGS_TOP_DOWN);
- drawable->stream = stream;
- /* Provide an fps estimate the video encoder can use when initializing
- * based on the frames that lead to the creation of the stream. Round to
- * the nearest integer, for instance 24 for 23.976.
- */
- uint64_t duration = drawable->creation_time - drawable->first_frame_time;
- if (duration > NSEC_PER_SEC * drawable->frames_count / MAX_FPS) {
- stream->input_fps = (NSEC_PER_SEC * drawable->frames_count + duration / 2) / duration;
- } else {
- stream->input_fps = MAX_FPS;
- }
+ stream->top_down = 1;
+ stream->input_fps = MAX_FPS * 2;
stream->num_input_frames = 0;
- stream->input_fps_start_time = drawable->creation_time;
+ stream->input_fps_start_time = stream->last_time;
display->priv->streams_size_total += stream->width * stream->height;
display->priv->stream_count++;
- FOREACH_DCC(display, dcc) {
- dcc_create_stream(dcc, stream);
+
+ stream->current = drawable;
+ if (drawable) {
+ drawable->stream = stream;
+ stream->last_time = drawable->creation_time;
+ stream->dest_area = drawable->red_drawable->bbox;
+ bitmap = &drawable->red_drawable->u.copy.src_bitmap->u.bitmap;
+ stream->top_down = !!(bitmap->flags & SPICE_BITMAP_FLAGS_TOP_DOWN);
+
+ /* Provide an fps estimate the video encoder can use when initializing
+ * based on the frames that lead to the creation of the stream. Round
+ * to the nearest integer, for instance 24 for 23.976.
+ */
+ duration = drawable->creation_time - drawable->first_frame_time;
+ if (duration > NSEC_PER_SEC * drawable->frames_count / MAX_FPS) {
+ stream->input_fps = (NSEC_PER_SEC * drawable->frames_count + duration / 2) / duration;
+ } else {
+ stream->input_fps = MAX_FPS;
+ }
}
+
spice_debug("stream %d %dx%d (%d, %d) (%d, %d) %u fps",
display_channel_get_video_stream_id(display, stream), stream->width,
stream->height, stream->dest_area.left, stream->dest_area.top,
@@ -415,6 +414,56 @@ static void display_channel_create_stream(DisplayChannel *display, Drawable *dra
stream->input_fps);
}
+static void display_channel_create_stream(DisplayChannel *display,
+ Drawable *drawable)
+{
+ DisplayChannelClient *dcc;
+ VideoStream *stream;
+ SpiceRect* src_rect;
+
+ spice_assert(!drawable->stream);
+
+ if (!(stream = display_channel_stream_try_new(display))) {
+ return;
+ }
+
+ spice_assert(drawable->red_drawable->type == QXL_DRAW_COPY);
+ src_rect = &drawable->red_drawable->u.copy.src_area;
+
+ display_channel_init_stream(display, stream, drawable, src_rect);
+ FOREACH_DCC(display, dcc) {
+ dcc_create_stream(dcc, stream);
+ }
+}
+
+bool display_channel_update_gl_draw_stream(DisplayChannelClient *dcc,
+ const SpiceMsgDisplayGlDraw *draw)
+{
+ DisplayChannel *display = DCC_TO_DC(dcc);
+ VideoStream *stream = display->priv->gl_draw_stream;
+ SpiceRect dest_area = {
+ .left = draw->x,
+ .top = draw->y,
+ .right = draw->w,
+ .bottom = draw->h
+ };
+
+ if (stream) {
+ stream->last_time = spice_get_monotonic_time_ns();
+ return true;
+ }
+
+ if (!(stream = display_channel_stream_try_new(display))) {
+ return false;
+ }
+
+ display->priv->gl_draw_stream = stream;
+ display_channel_init_stream(display, stream, nullptr, &dest_area);
+ dcc_create_stream(dcc, stream);
+
+ return true;
+}
+
// returns whether a stream was created
static bool video_stream_add_frame(DisplayChannel *display,
Drawable *frame_drawable,
diff --git a/server/video-stream.h b/server/video-stream.h
index 23b44ff5..a35a00b6 100644
--- a/server/video-stream.h
+++ b/server/video-stream.h
@@ -124,6 +124,8 @@ struct VideoStream {
};
void display_channel_init_video_streams(DisplayChannel *display);
+bool display_channel_update_gl_draw_stream(DisplayChannelClient *dcc,
+ const SpiceMsgDisplayGlDraw *draw);
void video_stream_stop(DisplayChannel *display, VideoStream *stream);
void video_stream_trace_update(DisplayChannel *display, Drawable *drawable);
void video_stream_maintenance(DisplayChannel *display, Drawable *candidate,
--
2.39.2