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vnc: only use a single zlib stream 

According to http://tigervnc.org/cgi-bin/rfbproto#zlib-encoding
zlib encoding only uses a single stream. Current implementation defines
4 streams but only uses the first one. Remove them and only use a single
stream.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Corentin Chary 2010-05-19 09:24:04 +02:00 committed by Anthony Liguori
parent 780a049e29
commit b05ad290e2
2 changed files with 6 additions and 8 deletions
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12
vnc-encoding-zlib.c
View File

@ -54,9 +54,9 @@ static void vnc_zlib_start(VncState *vs)
vs->output = vs->zlib;
}
static int vnc_zlib_stop(VncState *vs, int stream_id)
static int vnc_zlib_stop(VncState *vs)
{
z_streamp zstream = &vs->zlib_stream[stream_id];
z_streamp zstream = &vs->zlib_stream;
int previous_out;
// switch back to normal output/zlib buffers
@ -70,7 +70,7 @@ static int vnc_zlib_stop(VncState *vs, int stream_id)
if (zstream->opaque != vs) {
int err;
VNC_DEBUG("VNC: initializing zlib stream %d\n", stream_id);
VNC_DEBUG("VNC: initializing zlib stream\n");
VNC_DEBUG("VNC: opaque = %p | vs = %p\n", zstream->opaque, vs);
zstream->zalloc = zalloc;
zstream->zfree = zfree;
@ -122,7 +122,7 @@ void vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
// compress the stream
vnc_zlib_start(vs);
vnc_raw_send_framebuffer_update(vs, x, y, w, h);
bytes_written = vnc_zlib_stop(vs, 0);
bytes_written = vnc_zlib_stop(vs);
if (bytes_written == -1)
return;
@ -136,7 +136,5 @@ void vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
void vnc_zlib_init(VncState *vs)
{
int i;
for (i=0; i<(sizeof(vs->zlib_stream) / sizeof(z_stream)); i++)
vs->zlib_stream[i].opaque = NULL;
vs->zlib_stream.opaque = NULL;
}

2
vnc.h
View File

@ -177,7 +177,7 @@ struct VncState
/* Zlib */
Buffer zlib;
Buffer zlib_tmp;
z_stream zlib_stream[4];
z_stream zlib_stream;
Notifier mouse_mode_notifier;