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VNC: Add some rectangle queuing logic

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This commit is contained in:
Gregory Nutt
2016-04-17 16:48:30 -06:00
parent e7f4a02e45
commit df297ec8fc
5 changed files with 188 additions and 16 deletions
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graphics/vnc/server/vnc_server.h
+37 -5
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@@ -43,9 +43,12 @@
#include <nuttx/config.h>
#include <stdint.h>
#include <semaphore.h>
#include <pthread.h>
#include <queue.h>
#include <nuttx/video/fb.h>
#include <nuttx/video/rfb.h>
#include <nuttx/nx/nxglib.h>
#include <nuttx/nx/nx.h>
#include <nuttx/net/net.h>
@@ -126,10 +129,21 @@
# define CONFIG_VNCSERVER_UPDATER_STACKSIZE 2048
#endif
#ifndef CONFIG_VNCSERVER_IOBUFFER_SIZE
# define CONFIG_VNCSERVER_IOBUFFER_SIZE 80
#ifndef CONFIG_VNCSERVER_INBUFFER_SIZE
# define CONFIG_VNCSERVER_INBUFFER_SIZE 80
#endif
#ifndef CONFIG_VNCSERVER_NUPDATES
# define CONFIG_VNCSERVER_NUPDATES 48
#endif
#ifndef CONFIG_VNCSERVER_UPDATE_BUFSIZE
# define CONFIG_VNCSERVER_UPDATE_BUFSIZE 4096
#endif
#define VNCSERVER_UPDATE_BUFSIZE \
(CONFIG_VNCSERVER_UPDATE_BUFSIZE + SIZEOF_RFB_FRAMEBUFFERUPDATE_S(0))
/* Local framebuffer characteristics in bytes */
#define RFB_BYTESPERPIXEL ((RFB_BITSPERPIXEL + 7) >> 8)
@@ -168,6 +182,16 @@ enum vnc_server_e
VNCSERVER_STOPPING /* The server has been asked to stop */
};
/* This structure is used to queue FrameBufferUpdate event. It includes a
* pointer to support singly linked list.
*/
struct vnc_fbupdate_s
{
FAR struct vnc_fbupdate_s *flink;
struct nxgl_rect_s rect; /* The enqueued update rectangle */
};
struct vnc_session_s
{
/* NX graphics system */
@@ -185,15 +209,23 @@ struct vnc_session_s
uint8_t colorfmt; /* Remote color format (See include/nuttx/fb.h) */
uint8_t bpp; /* Remote bits per pixel */
FAR uint8_t *fb; /* Allocated local frame buffer */
/* Updater information */
pthread_t updater; /* Updater thread ID */
/* Update list information */
struct vnc_fbupdate_s updpool[CONFIG_VNCSERVER_NUPDATES];
sq_queue_t updfree;
sq_queue_t updqueue;
sem_t exclsem;
sem_t updsem;
/* I/O buffers for misc network send/receive */
uint8_t inbuf[CONFIG_VNCSERVER_IOBUFFER_SIZE];
uint8_t outbuf[CONFIG_VNCSERVER_IOBUFFER_SIZE];
uint8_t inbuf[CONFIG_VNCSERVER_INBUFFER_SIZE];
uint8_t outbuf[VNCSERVER_UPDATE_BUFSIZE];
};
/****************************************************************************