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gst/librfb/: It is now possible to connect to a vncserver. there are still some issues with the ouput of the screen. ...

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Original commit message from CVS:
* gst/librfb/gstrfbsrc.c:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
It is now possible to connect to a vncserver.
there are still some issues with the ouput of
the screen. Looks like some lines are confused
This commit is contained in:
Thijs Vermeir 2007-09-19 20:55:43 +00:00
parent 50ed6cc7b2
commit d785a925c1
4 changed files with 185 additions and 117 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2007-09-19 Thijs Vermeir <thijsvermeir@gmail.com>
* gst/librfb/gstrfbsrc.c:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
It is now possible to connect to a vncserver.
there are still some issues with the ouput of
the screen. Looks like some lines are confused
2007-09-19 Stefan Kost <ensonic@users.sf.net>
* docs/plugins/.cvsignore:

14
gst/librfb/gstrfbsrc.c
View file

@ -410,20 +410,20 @@ gst_rfb_src_paint_rect (RfbDecoder * decoder, gint x, gint y, gint w, gint h,
gint width;
gint offset;
// GST_DEBUG ("painting %d,%d (%dx%d)\n", x, y, w, h);
GST_DEBUG ("painting %d,%d (%dx%d)\n", x, y, w, h);
src = GST_RFB_SRC (decoder->decoder_private);
frame = src->frame;
width = decoder->width;
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
color = data[j * w + i];
color = data[(j * w + i) * decoder->bpp / 8];
offset = ((j + x) * width + (i + x)) * 4;
frame[offset + 0] = RGB332_B (color);
frame[offset + 1] = RGB332_G (color);
frame[offset + 2] = RGB332_R (color);
frame[offset + 3] = 0;
offset = ((j + y) * width + (i + x)) * decoder->bpp / 8;
frame[offset] = data[((j * w + i) * decoder->bpp / 8)];
frame[offset + 1] = data[((j * w + i) * decoder->bpp / 8) + 1];
frame[offset + 2] = data[((j * w + i) * decoder->bpp / 8) + 2];
frame[offset + 3] = data[((j * w + i) * decoder->bpp / 8) + 3];
}
}

276
gst/librfb/rfbdecoder.c
View file

@ -95,26 +95,30 @@ rfb_decoder_use_file_descriptor (RfbDecoder * decoder, gint fd)
gboolean
rfb_decoder_connect_tcp (RfbDecoder * decoder, gchar * addr, guint port)
{
gint fd;
struct sockaddr_in sa;
GST_DEBUG ("connecting to the rfb server");
g_return_val_if_fail (decoder != NULL, FALSE);
g_return_val_if_fail (decoder->fd == -1, FALSE);
g_return_val_if_fail (addr != NULL, FALSE);
fd = socket (PF_INET, SOCK_STREAM, 0);
if (fd == -1)
decoder->fd = socket (PF_INET, SOCK_STREAM, 0);
if (decoder->fd == -1) {
GST_WARNING ("creating socket failed");
return FALSE;
}
sa.sin_family = AF_INET;
sa.sin_port = htons (port);
inet_pton (AF_INET, addr, &sa.sin_addr);
if (connect (fd, (struct sockaddr *) &sa, sizeof (struct sockaddr)) == -1) {
close (fd);
if (connect (decoder->fd, (struct sockaddr *) &sa,
sizeof (struct sockaddr)) == -1) {
close (decoder->fd);
GST_WARNING ("connection failed");
return FALSE;
}
rfb_decoder_use_file_descriptor (decoder, fd);
//rfb_decoder_use_file_descriptor (decoder, fd);
return TRUE;
}
@ -143,14 +147,39 @@ rfb_decoder_iterate (RfbDecoder * decoder)
return decoder->state (decoder);
}
gint
rfb_decoder_send (RfbDecoder * decoder, guint8 * buffer, gint len)
guint8 *
rfb_decoder_read (RfbDecoder * decoder, gint len)
{
g_return_val_if_fail (decoder != NULL, 0);
g_return_val_if_fail (decoder->fd != -1, 0);
g_return_val_if_fail (buffer != NULL, 0);
gint total = 0;
gint now = 0;
guint8 *address = NULL;
return decoder->send_data (buffer, len, decoder->buffer_handler_data);
g_return_val_if_fail (decoder->fd > 0, NULL);
g_return_val_if_fail (len > 0, NULL);
address = g_malloc (len);
g_return_val_if_fail (address, NULL);
address += total;
while (total < len) {
now = recv (decoder->fd, address, len - total, 0);
if (now <= 0) {
GST_WARNING ("rfb read error on socket");
return NULL;
}
total += now;
}
return address;
}
static gint
rfb_decoder_send (RfbDecoder * decoder, guint8 * buffer, guint len)
{
g_return_val_if_fail (decoder->fd != 0, FALSE);
g_return_val_if_fail (buffer != NULL, FALSE);
g_return_val_if_fail (len > 0, FALSE);
return write (decoder->fd, buffer, len);
}
void
@ -215,27 +244,20 @@ rfb_decoder_send_pointer_event (RfbDecoder * decoder,
static gboolean
rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
{
RfbBuffer *buffer;
guint8 *data;
gint ret;
guint8 *buffer = NULL;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 12);
if (ret < 12)
return FALSE;
buffer = rfb_decoder_read (decoder, 12);
data = buffer->data;
g_return_val_if_fail (memcmp (buffer, "RFB 003.00", 10) == 0, FALSE);
g_return_val_if_fail (*(buffer + 11) == 0x0a, FALSE);
g_return_val_if_fail (memcmp (buffer->data, "RFB 003.00", 10) == 0, FALSE);
g_return_val_if_fail (*(buffer->data + 11) == 0x0a, FALSE);
GST_DEBUG ("\"%.11s\"", buffer->data);
*(buffer->data + 7) = 0x00;
*(buffer->data + 11) = 0x00;
decoder->protocol_major = atoi ((char *) (buffer->data + 4));
decoder->protocol_minor = atoi ((char *) (buffer->data + 8));
GST_DEBUG ("\"%.11s\"", buffer);
*(buffer + 7) = 0x00;
*(buffer + 11) = 0x00;
decoder->protocol_major = atoi ((char *) (buffer + 4));
decoder->protocol_minor = atoi ((char *) (buffer + 8));
GST_DEBUG ("Major version : %d", decoder->protocol_major);
GST_DEBUG ("Minor version : %d", decoder->protocol_minor);
rfb_buffer_free (buffer);
if (decoder->protocol_major != 3) {
GST_INFO
@ -254,7 +276,7 @@ rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
rfb_decoder_send (decoder, (guint8 *) "RFB 003.003\n", 12);
decoder->state = rfb_decoder_state_wait_for_security;
g_free (buffer);
return TRUE;
}
@ -265,15 +287,18 @@ rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_reason (RfbDecoder * decoder)
{
RfbBuffer *buffer;
gint reason_length;
guint8 *buffer = NULL;
rfb_bytestream_read (decoder->bytestream, &buffer, 4);
reason_length = RFB_GET_UINT32 (buffer->data);
rfb_buffer_free (buffer);
rfb_bytestream_read (decoder->bytestream, &buffer, reason_length);
GST_WARNING ("Reason by server: %s", buffer->data);
rfb_buffer_free (buffer);
buffer = rfb_decoder_read (decoder, 4);
reason_length = RFB_GET_UINT32 (buffer);
g_free (buffer);
buffer = NULL;
buffer = rfb_decoder_read (decoder, reason_length);
GST_WARNING ("Reason by server: %s", buffer);
g_free (buffer);
return FALSE;
}
@ -281,8 +306,7 @@ rfb_decoder_state_reason (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
{
RfbBuffer *buffer;
gint ret;
guint8 *buffer = NULL;
/**
* Version 3.3 The server decides the security type and sends a single word
@ -292,16 +316,19 @@ rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
* above.
*/
if (IS_VERSION_3_3 (decoder)) {
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 4);
g_return_val_if_fail (ret == 4, FALSE);
buffer = rfb_decoder_read (decoder, 4);
decoder->security_type = RFB_GET_UINT32 (buffer->data);
decoder->security_type = RFB_GET_UINT32 (buffer);
GST_DEBUG ("security = %d", decoder->security_type);
g_return_val_if_fail (decoder->security_type < 3, FALSE);
g_return_val_if_fail (decoder->security_type != SECURITY_FAIL,
rfb_decoder_state_reason (decoder));
rfb_buffer_free (buffer);
g_free (buffer);
buffer = NULL;
} else {
/* \TODO Add behavoir for the rfb 3.7 and 3.8 servers */
GST_WARNING ("Other versions are not yet supported");
}
switch (decoder->security_type) {
@ -326,11 +353,10 @@ rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
return FALSE;
}
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 16);
g_return_val_if_fail (ret == 16, FALSE);
vncEncryptBytes ((unsigned char *) buffer->data, decoder->password);
rfb_decoder_send (decoder, buffer->data, 16);
rfb_buffer_free (buffer);
buffer = rfb_decoder_read (decoder, 16);
vncEncryptBytes ((unsigned char *) buffer, decoder->password);
rfb_decoder_send (decoder, buffer, 16);
g_free (buffer);
GST_DEBUG ("Encrypted challenge send to server");
@ -351,12 +377,10 @@ rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_security_result (RfbDecoder * decoder)
{
RfbBuffer *buffer;
gint ret;
guint8 *buffer = NULL;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 4);
g_return_val_if_fail (ret == 4, FALSE);
if (RFB_GET_UINT32 (buffer->data) != 0) {
buffer = rfb_decoder_read (decoder, 4);
if (RFB_GET_UINT32 (buffer) != 0) {
GST_WARNING ("Security handshaking failed");
if (IS_VERSION_3_8 (decoder)) {
decoder->state = rfb_decoder_state_reason;
@ -378,6 +402,7 @@ rfb_decoder_state_send_client_initialisation (RfbDecoder * decoder)
shared_flag = decoder->shared_flag;
rfb_decoder_send (decoder, &shared_flag, 1);
GST_DEBUG ("shared_flag is %d", shared_flag);
decoder->state = rfb_decoder_state_wait_for_server_initialisation;
return TRUE;
@ -386,43 +411,45 @@ rfb_decoder_state_send_client_initialisation (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_wait_for_server_initialisation (RfbDecoder * decoder)
{
RfbBuffer *buffer;
guint8 *data;
gint ret;
guint8 *buffer = NULL;
guint32 name_length;
ret = rfb_bytestream_peek (decoder->bytestream, &buffer, 24);
if (ret < 24)
return FALSE;
buffer = rfb_decoder_read (decoder, 24);
data = buffer->data;
decoder->width = RFB_GET_UINT16 (buffer + 0);
decoder->height = RFB_GET_UINT16 (buffer + 2);
decoder->bpp = RFB_GET_UINT8 (buffer + 4);
decoder->depth = RFB_GET_UINT8 (buffer + 5);
decoder->big_endian = RFB_GET_UINT8 (buffer + 6);
decoder->true_colour = RFB_GET_UINT8 (buffer + 7);
decoder->red_max = RFB_GET_UINT16 (buffer + 8);
decoder->green_max = RFB_GET_UINT16 (buffer + 10);
decoder->blue_max = RFB_GET_UINT16 (buffer + 12);
decoder->red_shift = RFB_GET_UINT8 (buffer + 14);
decoder->green_shift = RFB_GET_UINT8 (buffer + 15);
decoder->blue_shift = RFB_GET_UINT8 (buffer + 16);
decoder->width = RFB_GET_UINT16 (data + 0);
decoder->height = RFB_GET_UINT16 (data + 2);
decoder->bpp = RFB_GET_UINT8 (data + 4);
decoder->depth = RFB_GET_UINT8 (data + 5);
decoder->big_endian = RFB_GET_UINT8 (data + 6);
decoder->true_colour = RFB_GET_UINT8 (data + 7);
decoder->red_max = RFB_GET_UINT16 (data + 8);
decoder->green_max = RFB_GET_UINT16 (data + 10);
decoder->blue_max = RFB_GET_UINT16 (data + 12);
decoder->red_shift = RFB_GET_UINT8 (data + 14);
decoder->green_shift = RFB_GET_UINT8 (data + 15);
decoder->blue_shift = RFB_GET_UINT8 (data + 16);
GST_DEBUG ("Server Initialization");
GST_DEBUG ("width = %d", decoder->width);
GST_DEBUG ("height = %d", decoder->height);
GST_DEBUG ("bpp = %d", decoder->bpp);
GST_DEBUG ("depth = %d", decoder->depth);
GST_DEBUG ("big_endian = %d", decoder->big_endian);
GST_DEBUG ("true_colour= %d", decoder->true_colour);
GST_DEBUG ("red_max = %d", decoder->red_max);
GST_DEBUG ("green_max = %d", decoder->green_max);
GST_DEBUG ("blue_max = %d", decoder->blue_max);
GST_DEBUG ("red_shift = %d", decoder->red_shift);
GST_DEBUG ("green_shift= %d", decoder->green_shift);
GST_DEBUG ("blue_shift = %d", decoder->blue_shift);
// g_print ("width: %d\n", decoder->width);
// g_print ("height: %d\n", decoder->height);
name_length = RFB_GET_UINT32 (buffer + 20);
name_length = RFB_GET_UINT32 (data + 20);
rfb_buffer_free (buffer);
buffer = rfb_decoder_read (decoder, name_length);
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 24 + name_length);
if (ret < 24 + name_length)
return FALSE;
decoder->name = g_strndup ((gchar *) (buffer->data) + 24, name_length);
// g_print ("name: %s\n", decoder->name);
rfb_buffer_free (buffer);
decoder->name = g_strndup ((gchar *) (buffer), name_length);
g_free (buffer);
GST_DEBUG ("name = %s", decoder->name);
decoder->state = rfb_decoder_state_normal;
decoder->inited = TRUE;
@ -433,15 +460,15 @@ rfb_decoder_state_wait_for_server_initialisation (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_normal (RfbDecoder * decoder)
{
RfbBuffer *buffer;
gint ret;
guint8 *buffer;
gint message_type;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 1);
message_type = RFB_GET_UINT8 (buffer->data);
buffer = rfb_decoder_read (decoder, 1);
message_type = RFB_GET_UINT8 (buffer);
switch (message_type) {
case 0:
GST_DEBUG ("Receiving framebuffer update");
decoder->state = rfb_decoder_state_framebuffer_update;
break;
case 1:
@ -458,33 +485,34 @@ rfb_decoder_state_normal (RfbDecoder * decoder)
g_critical ("unknown message type %d", message_type);
}
rfb_buffer_free (buffer);
g_free (buffer);
return TRUE;
}
static gboolean
rfb_decoder_state_framebuffer_update (RfbDecoder * decoder)
{
RfbBuffer *buffer;
gint ret;
guint8 *buffer;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 3);
buffer = rfb_decoder_read (decoder, 3);
decoder->n_rects = RFB_GET_UINT16 (buffer + 1);
GST_DEBUG ("Number of rectangles : %d", decoder->n_rects);
decoder->n_rects = RFB_GET_UINT16 (buffer->data + 1);
decoder->state = rfb_decoder_state_framebuffer_update_rectangle;
return TRUE;
}
/*
static gboolean
rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
rfb_decoder_state_framebuffer_update (RfbDecoder *decoder)
{
RfbBuffer *buffer;
gint ret;
gint x, y, w, h;
gint encoding;
gint size;
RfbBuffer *buffer;
gint ret;
gint x, y, w, h;
gint encoding;
gint size;
ret = rfb_bytestream_peek (decoder->bytestream, &buffer, 12);
if (ret < 12)
@ -496,22 +524,56 @@ rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
h = RFB_GET_UINT16 (buffer->data + 6);
encoding = RFB_GET_UINT32 (buffer->data + 8);
GST_DEBUG(" UPDATE Receiver");
GST_DEBUG("x:%d y:%d", x, y);
GST_DEBUG("w:%d h:%d", w, h);
GST_DEBUG("encoding: %d", encoding);
switch (encoding)
{
default:
GST_WARNING("encoding type(%d) is not supported", encoding);
return FALSE;
}
return TRUE;
}
*/
static gboolean
rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
{
guint8 *buffer;
gint x, y, w, h;
gint encoding;
gint size;
buffer = rfb_decoder_read (decoder, 12);
x = RFB_GET_UINT16 (buffer + 0);
y = RFB_GET_UINT16 (buffer + 2);
w = RFB_GET_UINT16 (buffer + 4);
h = RFB_GET_UINT16 (buffer + 6);
encoding = RFB_GET_UINT32 (buffer + 8);
GST_DEBUG ("update recieved");
GST_DEBUG ("x:%d y:%d", x, y);
GST_DEBUG ("w:%d h:%d", w, h);
GST_DEBUG ("encoding: %d", encoding);
if (encoding != 0)
g_critical ("unimplemented encoding\n");
rfb_buffer_free (buffer);
g_free (buffer);
size = w * h;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, size + 12);
if (ret < size)
return FALSE;
size = w * h * decoder->bpp / 8;
GST_DEBUG ("Reading %d bytes", size);
buffer = rfb_decoder_read (decoder, size);
GST_DEBUG ("Reading %d bytes", size);
if (decoder->paint_rect) {
decoder->paint_rect (decoder, x, y, w, h, buffer->data + 12);
decoder->paint_rect (decoder, x, y, w, h, buffer);
}
rfb_buffer_free (buffer);
g_free (buffer);
decoder->n_rects--;
if (decoder->n_rects == 0) {
decoder->state = rfb_decoder_state_normal;

3
gst/librfb/rfbdecoder.h
View file

@ -89,9 +89,6 @@ gboolean rfb_decoder_connect_tcp (RfbDecoder * decoder,
gchar * addr,
guint port);
gboolean rfb_decoder_iterate (RfbDecoder * decoder);
gint rfb_decoder_send (RfbDecoder * decoder,
guint8 *data,
gint len);
void rfb_decoder_send_update_request (RfbDecoder * decoder,
gboolean incremental,
gint x,