mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
synced 2025-12-26 06:32:44 +00:00
7e56fc9fd9
Do not offset the time attempting to fix client latency. Client should handle it by itself. This remove entirely the delay introduced by the server. This avoids surely possible time drifts in the client. The server just sends it's concept of time without trying to force any delay. Only one end should handle this delay in an attempt to synchronize audio and video instead that doing it in both ends. Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
163 lines
8.1 KiB
C++
163 lines
8.1 KiB
C++
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2009-2015 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DCC_H_
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#define DCC_H_
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#include <array>
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#include "image-encoders.h"
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#include "image-cache.h"
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#include "pixmap-cache.h"
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#include "display-limits.h"
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#include "common-graphics-channel.h"
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#include "utils.hpp"
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#include "push-visibility.h"
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struct DisplayChannel;
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struct DisplayChannelClientPrivate;
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class DisplayChannelClient final: public CommonGraphicsChannelClient
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{
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protected:
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~DisplayChannelClient();
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public:
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DisplayChannelClient(DisplayChannel *display,
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RedClient *client, RedStream *stream,
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RedChannelCapabilities *caps,
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uint32_t id,
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SpiceImageCompression image_compression,
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spice_wan_compression_t jpeg_state,
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spice_wan_compression_t zlib_glz_state);
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virtual void disconnect() override;
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protected:
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virtual bool handle_message(uint16_t type, uint32_t size, void *msg) override;
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virtual bool config_socket() override;
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virtual void on_disconnect() override;
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virtual void send_item(RedPipeItem *item) override;
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virtual bool handle_migrate_data(uint32_t size, void *message) override;
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virtual void migrate() override;
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virtual void handle_migrate_flush_mark() override;
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virtual bool handle_migrate_data_get_serial(uint32_t size, void *message, uint64_t &serial) override;
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public:
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red::unique_link<DisplayChannelClientPrivate> priv;
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int is_low_bandwidth;
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};
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#define PALETTE_CACHE_HASH_SHIFT 8
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#define PALETTE_CACHE_HASH_SIZE (1 << PALETTE_CACHE_HASH_SHIFT)
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#define PALETTE_CACHE_HASH_MASK (PALETTE_CACHE_HASH_SIZE - 1)
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#define PALETTE_CACHE_HASH_KEY(id) ((id) & PALETTE_CACHE_HASH_MASK)
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#define CLIENT_PALETTE_CACHE_SIZE 128
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#define DISPLAY_CLIENT_MIGRATE_DATA_TIMEOUT (NSEC_PER_SEC * 10)
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#define DISPLAY_CLIENT_RETRY_INTERVAL 10000 //micro
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/* Each drawable can refer to at most 3 images: src, brush and mask */
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#define MAX_DRAWABLE_PIXMAP_CACHE_ITEMS 3
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#define WIDE_CLIENT_ACK_WINDOW 40
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#define NARROW_CLIENT_ACK_WINDOW 20
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#define MAX_PIPE_SIZE 50
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struct DisplayChannel;
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struct VideoStream;
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struct VideoStreamAgent;
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struct RedSurface;
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struct WaitForChannels {
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SpiceMsgWaitForChannels header;
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std::array<SpiceWaitForChannel, MAX_CACHE_CLIENTS> buf;
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};
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struct FreeList {
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int res_size;
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SpiceResourceList *res;
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uint64_t sync[MAX_CACHE_CLIENTS];
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WaitForChannels wait;
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};
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#define DCC_TO_DC(dcc) ((DisplayChannel*) dcc->get_channel())
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DisplayChannelClient* dcc_new (DisplayChannel *display,
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RedClient *client,
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RedStream *stream,
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int mig_target,
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RedChannelCapabilities *caps,
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SpiceImageCompression image_compression,
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spice_wan_compression_t jpeg_state,
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spice_wan_compression_t zlib_glz_state);
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void dcc_start (DisplayChannelClient *dcc);
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bool dcc_handle_migrate_data (DisplayChannelClient *dcc,
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uint32_t size, void *message);
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void dcc_push_monitors_config (DisplayChannelClient *dcc);
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void dcc_destroy_surface (DisplayChannelClient *dcc,
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uint32_t surface_id);
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void dcc_video_stream_agent_clip (DisplayChannelClient* dcc,
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VideoStreamAgent *agent);
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void dcc_create_stream (DisplayChannelClient *dcc,
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VideoStream *stream);
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void dcc_palette_cache_reset (DisplayChannelClient *dcc);
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void dcc_palette_cache_palette (DisplayChannelClient *dcc,
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SpicePalette *palette,
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uint8_t *flags);
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bool dcc_pixmap_cache_unlocked_add (DisplayChannelClient *dcc,
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uint64_t id, uint32_t size, int lossy);
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void dcc_prepend_drawable (DisplayChannelClient *dcc,
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Drawable *drawable);
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void dcc_append_drawable (DisplayChannelClient *dcc,
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Drawable *drawable);
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void dcc_add_drawable_after (DisplayChannelClient *dcc,
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Drawable *drawable,
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RedPipeItem *pos);
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bool dcc_drawable_is_in_pipe (DisplayChannelClient *dcc,
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Drawable *drawable);
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int dcc_compress_image (DisplayChannelClient *dcc,
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SpiceImage *dest, SpiceBitmap *src, Drawable *drawable,
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int can_lossy,
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compress_send_data_t* o_comp_data);
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void dcc_create_surface(DisplayChannelClient *dcc, struct RedSurface *surface);
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void dcc_push_surface_image(DisplayChannelClient *dcc, struct RedSurface *surface);
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bool dcc_clear_surface_drawables_from_pipe(DisplayChannelClient *dcc,
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RedSurface *surface, bool wait_if_used);
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void dcc_add_surface_area_image(DisplayChannelClient *dcc, RedSurface *surface,
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SpiceRect *area, RedChannelClient::Pipe::iterator pipe_item_pos,
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int can_lossy);
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RedPipeItemPtr dcc_gl_scanout_item_new(RedChannelClient *rcc, void *data, int num);
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RedPipeItemPtr dcc_gl_draw_item_new(RedChannelClient *rcc, void *data, int num);
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VideoStreamAgent *dcc_get_video_stream_agent(DisplayChannelClient *dcc, int stream_id);
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ImageEncoders *dcc_get_encoders(DisplayChannelClient *dcc);
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spice_wan_compression_t dcc_get_jpeg_state (DisplayChannelClient *dcc);
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spice_wan_compression_t dcc_get_zlib_glz_state (DisplayChannelClient *dcc);
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uint64_t dcc_get_max_stream_bit_rate(DisplayChannelClient *dcc);
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void dcc_set_max_stream_bit_rate(DisplayChannelClient *dcc, uint64_t rate);
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gboolean dcc_is_low_bandwidth(DisplayChannelClient *dcc);
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GArray *dcc_get_preferred_video_codecs_for_encoding(DisplayChannelClient *dcc);
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void dcc_video_codecs_update(DisplayChannelClient *dcc);
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#include "pop-visibility.h"
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#endif /* DCC_H_ */
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