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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2009-2015 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCC_H_
# define DCC_H_
#include "red-worker.h"
#include "pixmap-cache.h"
#include "cache-item.h"
#include "dcc-encoders.h"
#include "stream.h"
#include "display-limits.h"
#define PALETTE_CACHE_HASH_SHIFT 8
#define PALETTE_CACHE_HASH_SIZE (1 << PALETTE_CACHE_HASH_SHIFT)
#define PALETTE_CACHE_HASH_MASK (PALETTE_CACHE_HASH_SIZE - 1)
#define PALETTE_CACHE_HASH_KEY(id) ((id) & PALETTE_CACHE_HASH_MASK)
#define CLIENT_PALETTE_CACHE_SIZE 128
#define DISPLAY_CLIENT_MIGRATE_DATA_TIMEOUT (NSEC_PER_SEC * 10)
#define DISPLAY_CLIENT_RETRY_INTERVAL 10000 //micro
/* Each drawable can refer to at most 3 images: src, brush and mask */
#define MAX_DRAWABLE_PIXMAP_CACHE_ITEMS 3
#define WIDE_CLIENT_ACK_WINDOW 40
#define NARROW_CLIENT_ACK_WINDOW 20
#define MAX_PIPE_SIZE 50
typedef struct WaitForChannels {
SpiceMsgWaitForChannels header;
SpiceWaitForChannel buf[MAX_CACHE_CLIENTS];
} WaitForChannels;
typedef struct FreeList {
int res_size;
SpiceResourceList *res;
uint64_t sync[MAX_CACHE_CLIENTS];
WaitForChannels wait;
} FreeList;
struct DisplayChannelClient {
CommonGraphicsChannelClient common;
uint32_t id;
SpiceImageCompression image_compression;
spice_wan_compression_t jpeg_state;
spice_wan_compression_t zlib_glz_state;
int jpeg_quality;
int zlib_level;
QuicData quic_data;
QuicContext *quic;
LzData lz_data;
LzContext *lz;
JpegData jpeg_data;
JpegEncoderContext *jpeg;
#ifdef USE_LZ4
Lz4Data lz4_data;
Lz4EncoderContext *lz4;
#endif
ZlibData zlib_data;
ZlibEncoder *zlib;
int expect_init;
PixmapCache *pixmap_cache;
uint32_t pixmap_cache_generation;
int pending_pixmaps_sync;
CacheItem *palette_cache[PALETTE_CACHE_HASH_SIZE];
Ring palette_cache_lru;
long palette_cache_available;
uint32_t palette_cache_items;
struct {
uint32_t stream_outbuf_size;
uint8_t *stream_outbuf; // caution stream buffer is also used as compress bufs!!!
FreeList free_list;
uint64_t pixmap_cache_items[MAX_DRAWABLE_PIXMAP_CACHE_ITEMS];
int num_pixmap_cache_items;
} send_data;
/* global lz encoding entities */
GlzSharedDictionary *glz_dict;
GlzEncoderContext *glz;
GlzData glz_data;
Ring glz_drawables; // all the living lz drawable, ordered by encoding time
Ring glz_drawables_inst_to_free; // list of instances to be freed
pthread_mutex_t glz_drawables_inst_to_free_lock;
uint8_t surface_client_created[NUM_SURFACES];
QRegion surface_client_lossy_region[NUM_SURFACES];
StreamAgent stream_agents[NUM_STREAMS];
int use_mjpeg_encoder_rate_control;
uint32_t streams_max_latency;
uint64_t streams_max_bit_rate;
bool gl_draw_ongoing;
};
#define DCC_TO_WORKER(dcc) \
(SPICE_CONTAINEROF((dcc)->common.base.channel, CommonGraphicsChannel, base)->worker)
#define DCC_TO_DC(dcc) \
SPICE_CONTAINEROF((dcc)->common.base.channel, DisplayChannel, common.base)
#define RCC_TO_DCC(rcc) SPICE_CONTAINEROF((rcc), DisplayChannelClient, common.base)
typedef struct SurfaceCreateItem {
SpiceMsgSurfaceCreate surface_create;
PipeItem pipe_item;
} SurfaceCreateItem;
typedef struct GlScanoutUnixItem {
PipeItem base;
} GlScanoutUnixItem;
typedef struct GlDrawItem {
PipeItem base;
SpiceMsgDisplayGlDraw draw;
} GlDrawItem;
typedef struct ImageItem {
PipeItem base;
SpicePoint pos;
int width;
int height;
int stride;
int top_down;
int surface_id;
int image_format;
uint32_t image_flags;
int can_lossy;
uint8_t data[0];
} ImageItem;
typedef struct DrawablePipeItem {
RingItem base; /* link for a list of pipe items held by Drawable */
PipeItem dpi_pipe_item; /* link for the client's pipe itself */
Drawable *drawable;
DisplayChannelClient *dcc;
uint8_t refs;
} DrawablePipeItem;
DisplayChannelClient* dcc_new (DisplayChannel *display,
RedClient *client,
RedsStream *stream,
int mig_target,
uint32_t *common_caps,
int num_common_caps,
uint32_t *caps,
int num_caps,
SpiceImageCompression image_compression,
spice_wan_compression_t jpeg_state,
spice_wan_compression_t zlib_glz_state);
void dcc_start (DisplayChannelClient *dcc);
void dcc_stop (DisplayChannelClient *dcc);
int dcc_handle_message (RedChannelClient *rcc,
uint32_t size,
uint16_t type, void *msg);
int dcc_handle_migrate_data (DisplayChannelClient *dcc,
uint32_t size, void *message);
void dcc_push_monitors_config (DisplayChannelClient *dcc);
void dcc_destroy_surface (DisplayChannelClient *dcc,
uint32_t surface_id);
void dcc_stream_agent_clip (DisplayChannelClient* dcc,
StreamAgent *agent);
void dcc_create_stream (DisplayChannelClient *dcc,
Stream *stream);
void dcc_create_surface (DisplayChannelClient *dcc,
int surface_id);
void dcc_push_surface_image (DisplayChannelClient *dcc,
int surface_id);
ImageItem * dcc_add_surface_area_image (DisplayChannelClient *dcc,
int surface_id,
SpiceRect *area,
PipeItem *pos,
int can_lossy);
void dcc_palette_cache_reset (DisplayChannelClient *dcc);
void dcc_palette_cache_palette (DisplayChannelClient *dcc,
SpicePalette *palette,
uint8_t *flags);
int dcc_pixmap_cache_unlocked_add (DisplayChannelClient *dcc,
uint64_t id, uint32_t size, int lossy);
void dcc_prepend_drawable (DisplayChannelClient *dcc,
Drawable *drawable);
void dcc_append_drawable (DisplayChannelClient *dcc,
Drawable *drawable);
void dcc_add_drawable_after (DisplayChannelClient *dcc,
Drawable *drawable,
PipeItem *pos);
void dcc_release_item (DisplayChannelClient *dcc,
PipeItem *item,
int item_pushed);
void dcc_send_item (DisplayChannelClient *dcc,
PipeItem *item);
int dcc_clear_surface_drawables_from_pipe (DisplayChannelClient *dcc,
int surface_id,
int wait_if_used);
int dcc_drawable_is_in_pipe (DisplayChannelClient *dcc,
Drawable *drawable);
PipeItem * dcc_gl_scanout_item_new (RedChannelClient *rcc,
void *data, int num);
PipeItem * dcc_gl_draw_item_new (RedChannelClient *rcc,
void *data, int num);
typedef struct compress_send_data_t {
void* comp_buf;
uint32_t comp_buf_size;
SpicePalette *lzplt_palette;
int is_lossy;
} compress_send_data_t;
int dcc_compress_image (DisplayChannelClient *dcc,
SpiceImage *dest, SpiceBitmap *src, Drawable *drawable,
int can_lossy,
compress_send_data_t* o_comp_data);
#endif /* DCC_H_ */
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