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configure.ac: Pull in librfb from my CVS tree, because it is too small and annoying to be separate. Move rfbsrc plug...

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Original commit message from CVS:
* configure.ac: Pull in librfb from my CVS tree, because it is
too small and annoying to be separate.  Move rfbsrc plugin
to gst/.
* ext/Makefile.am:
* ext/librfb/Makefile.am:
* ext/librfb/gstrfbsrc.c:
* gst/librfb/Makefile.am:
* gst/librfb/gstrfbsrc.c:
* gst/librfb/rfb.c:
* gst/librfb/rfb.h:
* gst/librfb/rfbbuffer.c:
* gst/librfb/rfbbuffer.h:
* gst/librfb/rfbbytestream.c:
* gst/librfb/rfbbytestream.h:
* gst/librfb/rfbcontext.h:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
* gst/librfb/rfbutil.h:
This commit is contained in:
David Schleef 2005-02-11 22:01:19 +00:00
parent 909da9fb04
commit a970a32304
15 changed files with 1394 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
ChangeLog
View file

@ -1,3 +1,24 @@
2005-02-11 David Schleef <ds@schleef.org>
* configure.ac: Pull in librfb from my CVS tree, because it is
too small and annoying to be separate. Move rfbsrc plugin
to gst/.
* ext/Makefile.am:
* ext/librfb/Makefile.am:
* ext/librfb/gstrfbsrc.c:
* gst/librfb/Makefile.am:
* gst/librfb/gstrfbsrc.c:
* gst/librfb/rfb.c:
* gst/librfb/rfb.h:
* gst/librfb/rfbbuffer.c:
* gst/librfb/rfbbuffer.h:
* gst/librfb/rfbbytestream.c:
* gst/librfb/rfbbytestream.h:
* gst/librfb/rfbcontext.h:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
* gst/librfb/rfbutil.h:
2005-02-10 Tim-Philipp Müller <tim at centricular dot net>
* gst/speed/Makefile.am:

3
configure.ac
View file

@ -387,6 +387,7 @@ GST_PLUGINS_ALL="\
interleave \
law \
level \
librfb \
matroska \
median \
mixmatrix \
@ -1969,6 +1970,7 @@ gst/goom/Makefile
gst/interleave/Makefile
gst/law/Makefile
gst/level/Makefile
gst/librfb/Makefile
gst/matroska/Makefile
gst/median/Makefile
gst/mixmatrix/Makefile
@ -2074,7 +2076,6 @@ ext/libcaca/Makefile
ext/libfame/Makefile
ext/libmng/Makefile
ext/libpng/Makefile
ext/librfb/Makefile
ext/libvisual/Makefile
ext/mad/Makefile
dnl ext/mas/Makefile

8
ext/Makefile.am
View file

@ -220,12 +220,6 @@ else
POLYP_DIR=
endif
if USE_LIBRFB
LIBRFB_DIR=librfb
else
LIBRFB_DIR=
endif
if USE_LIBVISUAL
LIBVISUAL_DIR=libvisual
else
@ -439,7 +433,6 @@ SUBDIRS=\
$(LIBFAME_DIR) \
$(LIBMNG_DIR) \
$(LIBPNG_DIR) \
$(LIBRFB_DIR) \
$(LIBVISUAL_DIR) \
$(MAD_DIR) \
$(MIKMOD_DIR) \
@ -505,7 +498,6 @@ DIST_SUBDIRS=\
libmng \
libmms \
libpng \
librfb \
libvisual \
mad \
mikmod \

30
gst/librfb/Makefile.am Normal file
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@ -0,0 +1,30 @@
# please keep librfb easily extractable
noinst_LTLIBRARIES = librfb.la
plugin_LTLIBRARIES = libgstrfbsrc.la
libgstrfbsrc_la_SOURCES = gstrfbsrc.c
libgstrfbsrc_la_CFLAGS = $(GST_CFLAGS) -I/usr/local/include/librfb-0.1
libgstrfbsrc_la_LIBADD = librfb.la
libgstrfbsrc_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = \
rfb.h \
rfbdecoder.h \
rfbbuffer.h \
rfbbytestream.h
librfb_la_SOURCES = \
rfb.h \
rfbdecoder.c \
rfbdecoder.h \
rfbbuffer.c \
rfbbuffer.h \
rfbbytestream.c \
rfbbytestream.h
librfb_la_CFLAGS = $(RFB_CFLAGS)
librfb_la_LIBADD = $(GLIB_LIBS)

554
gst/librfb/gstrfbsrc.c Normal file
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@ -0,0 +1,554 @@
/* GStreamer
* Copyright (C) <2004> David A. Schleef <ds@schleef.org>
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <string.h>
#include <stdlib.h>
#include <librfb/rfb.h>
#define GST_TYPE_RFBSRC \
(gst_rfbsrc_get_type())
#define GST_RFBSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RFBSRC,GstRfbsrc))
#define GST_RFBSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RFBSRC,GstRfbsrc))
#define GST_IS_RFBSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RFBSRC))
#define GST_IS_RFBSRC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RFBSRC))
typedef struct _GstRfbsrc GstRfbsrc;
typedef struct _GstRfbsrcClass GstRfbsrcClass;
struct _GstRfbsrc
{
GstElement element;
GstPad *srcpad;
RfbDecoder *decoder;
char *server;
int port;
guint8 *frame;
gboolean go;
gboolean inter;
unsigned int button_mask;
double framerate;
};
struct _GstRfbsrcClass
{
GstElementClass parent_class;
};
GType
gst_rfbsrc_get_type (void)
G_GNUC_CONST;
static GstElementDetails rfbsrc_details =
GST_ELEMENT_DETAILS ("Video test source",
"Source/Video",
"Creates a test video stream",
"David A. Schleef <ds@schleef.org>");
/* GstRfbsrc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_SERVER,
ARG_PORT,
/* FILL ME */
};
static void gst_rfbsrc_base_init (gpointer g_class);
static void gst_rfbsrc_class_init (GstRfbsrcClass * klass);
static void gst_rfbsrc_init (GstRfbsrc * rfbsrc);
static GstElementStateReturn gst_rfbsrc_change_state (GstElement *
element);
static void gst_rfbsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rfbsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstData *gst_rfbsrc_get (GstPad * pad);
static const GstQueryType *gst_rfbsrc_get_query_types (GstPad * pad);
static gboolean gst_rfbsrc_src_query (GstPad * pad,
GstQueryType type, GstFormat * format, gint64 * value);
static void gst_rfbsrc_paint_rect (RfbDecoder * decoder, int x, int y,
int w, int h, guint8 * data);
static gboolean gst_rfbsrc_handle_src_event (GstPad * pad,
GstEvent * event);
static GstCaps *gst_rfbsrc_getcaps (GstPad * pad);
static GstPadLinkReturn gst_rfbsrc_link (GstPad * pad,
const GstCaps * caps);
static GstCaps *gst_rfbsrc_fixate (GstPad * pad, const GstCaps * caps);
static GstElementClass *parent_class = NULL;
static GstStaticPadTemplate gst_rfbsrc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) 0x0000ff00, "
"green_mask = (int) 0x00ff0000, "
"blue_mask = (int) 0xff000000, "
"width = [ 16, 4096 ], "
"height = [ 16, 4096 ], " "framerate = [ 1.0, 60.0] ")
);
GType
gst_rfbsrc_get_type (void)
{
static GType rfbsrc_type = 0;
if (!rfbsrc_type) {
static const GTypeInfo rfbsrc_info = {
sizeof (GstRfbsrcClass),
gst_rfbsrc_base_init,
NULL,
(GClassInitFunc) gst_rfbsrc_class_init,
NULL,
NULL,
sizeof (GstRfbsrc),
0,
(GInstanceInitFunc) gst_rfbsrc_init,
};
rfbsrc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRfbsrc", &rfbsrc_info, 0);
}
return rfbsrc_type;
}
static void
gst_rfbsrc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &rfbsrc_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rfbsrc_src_template));
}
static void
gst_rfbsrc_class_init (GstRfbsrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
#if 0
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH,
g_param_spec_int ("width", "width", "Default width",
1, G_MAXINT, 320, G_PARAM_READWRITE));
#endif
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (gobject_class, ARG_SERVER,
g_param_spec_string ("server", "Server", "Server",
"127.0.0.1", G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_PORT,
g_param_spec_int ("port", "Port", "Port",
1, 65535, 5900, G_PARAM_READWRITE));
gobject_class->set_property = gst_rfbsrc_set_property;
gobject_class->get_property = gst_rfbsrc_get_property;
gstelement_class->change_state = gst_rfbsrc_change_state;
}
static GstElementStateReturn
gst_rfbsrc_change_state (GstElement * element)
{
GstRfbsrc *rfbsrc;
rfbsrc = GST_RFBSRC (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
rfbsrc->decoder = rfb_decoder_new ();
rfb_decoder_connect_tcp (rfbsrc->decoder, rfbsrc->server, rfbsrc->port);
rfbsrc->decoder->paint_rect = gst_rfbsrc_paint_rect;
rfbsrc->decoder->decoder_private = rfbsrc;
break;
case GST_STATE_READY_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_PLAYING:
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
//rfbsrc->timestamp_offset = 0;
//rfbsrc->n_frames = 0;
break;
case GST_STATE_READY_TO_NULL:
if (rfbsrc->frame) {
g_free (rfbsrc->frame);
rfbsrc->frame = NULL;
}
break;
}
return parent_class->change_state (element);
}
static void
gst_rfbsrc_init (GstRfbsrc * rfbsrc)
{
GST_DEBUG ("gst_rfbsrc_init");
rfbsrc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rfbsrc_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rfbsrc), rfbsrc->srcpad);
gst_pad_set_getcaps_function (rfbsrc->srcpad, gst_rfbsrc_getcaps);
gst_pad_set_link_function (rfbsrc->srcpad, gst_rfbsrc_link);
gst_pad_set_fixate_function (rfbsrc->srcpad, gst_rfbsrc_fixate);
gst_pad_set_get_function (rfbsrc->srcpad, gst_rfbsrc_get);
gst_pad_set_query_function (rfbsrc->srcpad, gst_rfbsrc_src_query);
gst_pad_set_query_type_function (rfbsrc->srcpad, gst_rfbsrc_get_query_types);
gst_pad_set_event_function (rfbsrc->srcpad, gst_rfbsrc_handle_src_event);
rfbsrc->server = g_strdup ("127.0.0.1");
rfbsrc->port = 5900;
}
static GstCaps *
gst_rfbsrc_getcaps (GstPad * pad)
{
GstRfbsrc *rfbsrc;
GstCaps *caps;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
if (rfbsrc->decoder && rfbsrc->decoder->inited) {
gst_caps_set_simple (caps,
"width", G_TYPE_INT, rfbsrc->decoder->width,
"height", G_TYPE_INT, rfbsrc->decoder->height, NULL);
}
return caps;
}
static GstCaps *
gst_rfbsrc_fixate (GstPad * pad, const GstCaps * caps)
{
GstStructure *structure;
GstCaps *newcaps;
if (gst_caps_get_size (caps) > 1)
return NULL;
newcaps = gst_caps_copy (caps);
structure = gst_caps_get_structure (newcaps, 0);
if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate",
30.0)) {
return newcaps;
}
gst_caps_free (newcaps);
return NULL;
}
static GstPadLinkReturn
gst_rfbsrc_link (GstPad * pad, const GstCaps * caps)
{
GstRfbsrc *rfbsrc;
GstStructure *structure;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_double (structure, "framerate", &rfbsrc->framerate);
return GST_PAD_LINK_OK;
}
static const GstQueryType *
gst_rfbsrc_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_POSITION,
0,
};
return query_types;
}
static gboolean
gst_rfbsrc_src_query (GstPad * pad,
GstQueryType type, GstFormat * format, gint64 * value)
{
gboolean res = FALSE;
//GstRfbsrc *rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
switch (type) {
case GST_QUERY_POSITION:
switch (*format) {
case GST_FORMAT_TIME:
//*value = rfbsrc->n_frames * GST_SECOND / (double) rfbsrc->rate;
res = TRUE;
break;
case GST_FORMAT_DEFAULT: /* frames */
//*value = rfbsrc->n_frames;
res = TRUE;
break;
default:
break;
}
break;
default:
break;
}
return res;
}
static gboolean
gst_rfbsrc_handle_src_event (GstPad * pad, GstEvent * event)
{
GstRfbsrc *rfbsrc;
double x, y;
int button;
GstStructure *structure;
const char *event_type;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
structure = event->event_data.structure.structure;
event_type = gst_structure_get_string (structure, "event");
gst_structure_get_double (structure, "pointer_x", &x);
gst_structure_get_double (structure, "pointer_y", &y);
button = 0;
if (strcmp (event_type, "key-press") == 0) {
const char *key = gst_structure_get_string (structure, "key");
rfb_decoder_send_key_event (rfbsrc->decoder, key[0], 1);
rfb_decoder_send_key_event (rfbsrc->decoder, key[0], 0);
} else if (strcmp (event_type, "mouse-move") == 0) {
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
} else if (strcmp (event_type, "mouse-button-release") == 0) {
rfbsrc->button_mask &= ~(1 << button);
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
} else if (strcmp (event_type, "mouse-button-press") == 0) {
rfbsrc->button_mask |= (1 << button);
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
}
break;
default:
break;
}
return TRUE;
}
static void
gst_rfbsrc_paint_rect (RfbDecoder * decoder, int x, int y, int w, int h,
guint8 * data)
{
int i, j;
guint8 *frame;
guint8 color;
GstRfbsrc *rfbsrc;
int width;
int offset;
GST_DEBUG ("painting %d,%d (%dx%d)\n", x, y, w, h);
rfbsrc = GST_RFBSRC (decoder->decoder_private);
frame = rfbsrc->frame;
width = decoder->width;
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
color = data[j * w + i];
#define RGB332_R(x) ((((x)&0x07) * 0x124)>>3)
#define RGB332_G(x) ((((x)&0x38) * 0x124)>>6)
#define RGB332_B(x) ((((x)&0xc0) * 0x149)>>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;
}
}
rfbsrc->go = FALSE;
}
static GstData *
gst_rfbsrc_get (GstPad * pad)
{
GstRfbsrc *rfbsrc;
gulong newsize;
GstBuffer *buf;
RfbDecoder *decoder;
GST_DEBUG ("gst_rfbsrc_get");
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
decoder = rfbsrc->decoder;
if (!decoder->inited) {
while (!decoder->inited) {
rfb_decoder_iterate (decoder);
}
gst_pad_renegotiate (rfbsrc->srcpad);
if (rfbsrc->frame)
g_free (rfbsrc->frame);
rfbsrc->frame = g_malloc (decoder->width * decoder->height * 4);
GST_DEBUG ("red_mask = %08x\n", decoder->red_max << decoder->red_shift);
GST_DEBUG ("green_mask = %08x\n",
decoder->green_max << decoder->green_shift);
GST_DEBUG ("blue_mask = %08x\n", decoder->blue_max << decoder->blue_shift);
rfbsrc->inter = FALSE;
}
rfb_decoder_send_update_request (decoder, rfbsrc->inter, 0, 0, decoder->width,
decoder->height);
//rfbsrc->inter = TRUE;
rfbsrc->go = TRUE;
while (rfbsrc->go) {
rfb_decoder_iterate (decoder);
GST_DEBUG ("iterate...\n");
}
newsize = decoder->width * decoder->height * 4;
g_return_val_if_fail (newsize > 0, NULL);
GST_DEBUG ("size=%ld %dx%d", newsize, decoder->width, decoder->height);
buf = gst_buffer_new_and_alloc (newsize);
g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
memcpy (GST_BUFFER_DATA (buf), rfbsrc->frame, newsize);
return GST_DATA (buf);
}
static void
gst_rfbsrc_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstRfbsrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_RFBSRC (object));
src = GST_RFBSRC (object);
GST_DEBUG ("gst_rfbsrc_set_property");
switch (prop_id) {
case ARG_SERVER:
src->server = g_strdup (g_value_get_string (value));
break;
case ARG_PORT:
src->port = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_rfbsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRfbsrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_RFBSRC (object));
src = GST_RFBSRC (object);
switch (prop_id) {
case ARG_SERVER:
g_value_set_string (value, src->server);
break;
case ARG_PORT:
g_value_set_int (value, src->port);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rfbsrc", GST_RANK_NONE,
GST_TYPE_RFBSRC);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"rfbsrc",
"Connects to a VNC server and decodes RFB stream",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)

31
gst/librfb/rfb.c Normal file
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@ -0,0 +1,31 @@
#include <stdio.h>
#include <stdlib.h>
#include "rfb.h"
int
main (int argc, char *argv[])
{
RfbDecoder *decoder;
//int fd = 0;
decoder = rfb_decoder_new ();
rfb_decoder_connect_tcp (decoder, "127.0.0.1", 5901);
//rfb_decoder_use_file_descriptor (decoder, fd);
while (!decoder->inited)
rfb_decoder_iterate (decoder);
rfb_decoder_send_update_request (decoder, FALSE, 0, 0, 100, 100);
while (1) {
rfb_decoder_iterate (decoder);
}
return 0;
}

10
gst/librfb/rfb.h Normal file
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@ -0,0 +1,10 @@
#ifndef _RFB_RFB_H_
#define _RFB_RFB_H_
#include <librfb/rfbdecoder.h>
#include <librfb/rfbbytestream.h>
#include <librfb/rfbbuffer.h>
#endif

27
gst/librfb/rfbbuffer.c Normal file
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@ -0,0 +1,27 @@
#include <rfbbuffer.h>
RfbBuffer *
rfb_buffer_new (void)
{
return g_new0 (RfbBuffer, 1);
}
RfbBuffer *
rfb_buffer_new_and_alloc (int len)
{
RfbBuffer *buffer = g_new0 (RfbBuffer, 1);
buffer->data = g_malloc (len);
buffer->free_data = (void *) g_free;
return buffer;
}
void
rfb_buffer_free (RfbBuffer * buffer)
{
buffer->free_data (buffer->data, buffer->buffer_private);
}

26
gst/librfb/rfbbuffer.h Normal file
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@ -0,0 +1,26 @@
#ifndef _LIBRFB_BUFFER_H_
#define _LIBRFB_BUFFER_H_
#include <glib.h>
G_BEGIN_DECLS
typedef struct _RfbBuffer RfbBuffer;
struct _RfbBuffer
{
guint8 *data;
int length;
void (*free_data) (guint8 *data, gpointer priv);
gpointer buffer_private;
};
RfbBuffer *rfb_buffer_new (void);
RfbBuffer *rfb_buffer_new_and_alloc (int len);
void rfb_buffer_free (RfbBuffer *buffer);
G_END_DECLS
#endif

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#include <rfbbytestream.h>
#include <string.h>
RfbBytestream *
rfb_bytestream_new (void)
{
return g_new0 (RfbBytestream, 1);
}
int
rfb_bytestream_get (RfbBytestream * bs, int len)
{
RfbBuffer *buffer;
buffer = bs->get_buffer (len, bs->user_data);
if (buffer) {
g_print ("got buffer (%d bytes)\n", buffer->length);
bs->buffer_list = g_list_append (bs->buffer_list, buffer);
bs->length += buffer->length;
return len;
}
return 0;
}
gboolean
rfb_bytestream_check (RfbBytestream * bs, int len)
{
while (bs->length < len) {
rfb_bytestream_get (bs, len - bs->length);
}
return TRUE;
}
static int
rfb_bytestream_copy_nocheck (RfbBytestream * bs, RfbBuffer * buffer, int len)
{
GList *item;
int offset;
int first_offset;
RfbBuffer *frombuf;
int n;
offset = 0;
first_offset = bs->offset;
for (item = bs->buffer_list; item; item = g_list_next (item)) {
frombuf = (RfbBuffer *) item->data;
n = MIN (len, frombuf->length - first_offset);
g_print ("copying %d bytes from %p\n", n, frombuf);
memcpy (buffer->data + offset, frombuf->data + first_offset, n);
first_offset = 0;
len -= n;
offset += n;
if (len == 0)
return len;
}
g_assert_not_reached ();
return 0;
}
int
rfb_bytestream_read (RfbBytestream * bs, RfbBuffer ** buffer, int len)
{
RfbBuffer *buf;
rfb_bytestream_check (bs, len);
buf = rfb_buffer_new_and_alloc (len);
rfb_bytestream_copy_nocheck (bs, buf, len);
rfb_bytestream_flush (bs, len);
*buffer = buf;
return len;
}
int
rfb_bytestream_peek (RfbBytestream * bs, RfbBuffer ** buffer, int len)
{
RfbBuffer *buf;
rfb_bytestream_check (bs, len);
buf = rfb_buffer_new_and_alloc (len);
rfb_bytestream_copy_nocheck (bs, buf, len);
*buffer = buf;
return len;
}
int
rfb_bytestream_flush (RfbBytestream * bs, int len)
{
GList *item;
RfbBuffer *buf;
int n;
while ((item = bs->buffer_list)) {
buf = (RfbBuffer *) item->data;
n = MIN (buf->length - bs->offset, len);
if (n <= len) {
bs->offset = 0;
bs->buffer_list = g_list_delete_link (bs->buffer_list, item);
rfb_buffer_free (buf);
} else {
bs->offset = bs->offset + len;
}
bs->length -= n;
len -= n;
if (len == 0)
return 0;
}
g_assert_not_reached ();
return 0;
}

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#ifndef _LIBRFB_BYTESTREAM_H_
#define _LIBRFB_BYTESTREAM_H_
#include <glib.h>
#include <librfb/rfbbuffer.h>
G_BEGIN_DECLS
typedef struct _RfbBytestream RfbBytestream;
struct _RfbBytestream
{
RfbBuffer * (*get_buffer) (int length, gpointer user_data);
gpointer user_data;
GList *buffer_list;
int length;
int offset;
};
RfbBytestream * rfb_bytestream_new (void);
int rfb_bytestream_read (RfbBytestream *bs, RfbBuffer **buffer, int len);
int rfb_bytestream_peek (RfbBytestream *bs, RfbBuffer **buffer, int len);
int rfb_bytestream_flush (RfbBytestream *bs, int len);
G_END_DECLS
#endif

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#ifndef _LIBRFB_RFBCONTEXT_H_
#define _LIBRFB_RFBCONTEXT_H_
G_BEGIN_DECLS
#include <glib.h>
typedef struct _RfbContext
{
RfbConnection *connection;
guint8 *buffer1;
void *buffer1_alloc;
unsigned int buffer1_len;
guint8 *buffer2;
void *buffer2_alloc;
unsigned int buffer2_len;
char *name;
} RfbContext;
typedef struct _RfbRect
{
RfbContext *context;
unsigned int x_pos;
unsigned int y_pos;
unsigned int width;
unsigned int height;
unsigned int encoding_type;
char *data;
} RfbRect;
G_END_DECLS
#endif

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#include <rfb.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#if 0
struct _RfbSocketPrivate
{
int fd;
sockaddr sa;
}
#endif
static RfbBuffer *
rfb_socket_get_buffer (int length, gpointer user_data)
{
RfbBuffer *buffer;
int fd = (int) user_data;
int ret;
buffer = rfb_buffer_new ();
buffer->data = g_malloc (length);
buffer->free_data = (void *) g_free;
g_print ("calling read(%d, %p, %d)\n", fd, buffer->data, length);
ret = read (fd, buffer->data, length);
if (ret <= 0) {
g_critical ("read: %s", strerror (errno));
rfb_buffer_free (buffer);
return NULL;
}
buffer->length = ret;
return buffer;
}
static int
rfb_socket_send_buffer (guint8 * buffer, int length, gpointer user_data)
{
int fd = (int) user_data;
int ret;
g_print ("calling write(%d, %p, %d)\n", fd, buffer, length);
ret = write (fd, buffer, length);
if (ret < 0) {
g_critical ("write: %s", strerror (errno));
return 0;
}
g_assert (ret == length);
return ret;
}
RfbDecoder *
rfb_decoder_new (void)
{
RfbDecoder *decoder = g_new0 (RfbDecoder, 1);
decoder->bytestream = rfb_bytestream_new ();
return decoder;
}
void
rfb_decoder_use_file_descriptor (RfbDecoder * decoder, int fd)
{
g_return_if_fail (decoder != NULL);
g_return_if_fail (!decoder->inited);
g_return_if_fail (fd >= 0);
decoder->bytestream->get_buffer = rfb_socket_get_buffer;
decoder->bytestream->user_data = (void *) fd;
decoder->send_data = rfb_socket_send_buffer;
decoder->buffer_handler_data = (void *) fd;
}
void
rfb_decoder_connect_tcp (RfbDecoder * decoder, char *addr, unsigned int port)
{
int fd;
struct sockaddr_in sa;
fd = socket (PF_INET, SOCK_STREAM, 0);
sa.sin_family = AF_INET;
sa.sin_port = htons (port);
inet_pton (AF_INET, addr, &sa.sin_addr);
connect (fd, (struct sockaddr *) &sa, sizeof (struct sockaddr));
rfb_decoder_use_file_descriptor (decoder, fd);
}
static gboolean rfb_decoder_state_wait_for_protocol_version (RfbDecoder *
decoder);
static gboolean rfb_decoder_state_wait_for_security (RfbDecoder * decoder);
static gboolean rfb_decoder_state_send_client_initialisation (RfbDecoder *
decoder);
static gboolean rfb_decoder_state_wait_for_server_initialisation (RfbDecoder *
decoder);
static gboolean rfb_decoder_state_normal (RfbDecoder * decoder);
static gboolean rfb_decoder_state_framebuffer_update (RfbDecoder * decoder);
static gboolean rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder *
decoder);
static gboolean rfb_decoder_state_set_colour_map_entries (RfbDecoder * decoder);
static gboolean rfb_decoder_state_server_cut_text (RfbDecoder * decoder);
gboolean
rfb_decoder_iterate (RfbDecoder * decoder)
{
g_return_val_if_fail (decoder != NULL, FALSE);
if (decoder->state == NULL) {
decoder->state = rfb_decoder_state_wait_for_protocol_version;
}
g_print ("iterating...\n");
return decoder->state (decoder);
}
#define RFB_GET_UINT32(ptr) GUINT32_FROM_BE (*(guint32 *)(ptr))
#define RFB_GET_UINT16(ptr) GUINT16_FROM_BE (*(guint16 *)(ptr))
#define RFB_GET_UINT8(ptr) (*(guint8 *)(ptr))
#define RFB_SET_UINT32(ptr, val) (*(guint32 *)(ptr) = GUINT32_TO_BE (val))
#define RFB_SET_UINT16(ptr, val) (*(guint16 *)(ptr) = GUINT16_TO_BE (val))
#define RFB_SET_UINT8(ptr, val) (*(guint8 *)(ptr) = val)
static gboolean
rfb_decoder_state_wait_for_protocol_version (RfbDecoder * decoder)
{
RfbBuffer *buffer;
guint8 *data;
int ret;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 12);
if (ret < 12)
return FALSE;
data = buffer->data;
g_assert (memcmp (buffer->data, "RFB 003.00", 10) == 0);
g_print ("\"%.11s\"\n", buffer->data);
rfb_buffer_free (buffer);
rfb_decoder_send (decoder, "RFB 003.003\n", 12);
decoder->state = rfb_decoder_state_wait_for_security;
return TRUE;
}
static gboolean
rfb_decoder_state_wait_for_security (RfbDecoder * decoder)
{
RfbBuffer *buffer;
int ret;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 4);
if (ret < 4)
return FALSE;
decoder->security_type = RFB_GET_UINT32 (buffer->data);
g_print ("security = %d\n", decoder->security_type);
rfb_buffer_free (buffer);
decoder->state = rfb_decoder_state_send_client_initialisation;
return TRUE;
}
static gboolean
rfb_decoder_state_send_client_initialisation (RfbDecoder * decoder)
{
guint8 shared_flag;
shared_flag = decoder->shared_flag;
rfb_decoder_send (decoder, &shared_flag, 1);
decoder->state = rfb_decoder_state_wait_for_server_initialisation;
return TRUE;
}
static gboolean
rfb_decoder_state_wait_for_server_initialisation (RfbDecoder * decoder)
{
RfbBuffer *buffer;
guint8 *data;
int ret;
guint32 name_length;
ret = rfb_bytestream_peek (decoder->bytestream, &buffer, 24);
if (ret < 24)
return FALSE;
data = buffer->data;
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);
g_print ("width: %d\n", decoder->width);
g_print ("height: %d\n", decoder->height);
name_length = RFB_GET_UINT32 (data + 20);
rfb_buffer_free (buffer);
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 24 + name_length);
if (ret < 24 + name_length)
return FALSE;
decoder->name = g_strndup ((char *) (buffer->data) + 24, name_length);
g_print ("name: %s\n", decoder->name);
rfb_buffer_free (buffer);
decoder->state = rfb_decoder_state_normal;
decoder->inited = TRUE;
return TRUE;
}
static gboolean
rfb_decoder_state_normal (RfbDecoder * decoder)
{
RfbBuffer *buffer;
int ret;
int message_type;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 1);
message_type = RFB_GET_UINT8 (buffer->data);
switch (message_type) {
case 0:
decoder->state = rfb_decoder_state_framebuffer_update;
break;
case 1:
decoder->state = rfb_decoder_state_set_colour_map_entries;
break;
case 2:
/* bell, ignored */
decoder->state = rfb_decoder_state_normal;
break;
case 3:
decoder->state = rfb_decoder_state_server_cut_text;
break;
default:
g_critical ("unknown message type %d", message_type);
}
rfb_buffer_free (buffer);
return TRUE;
}
static gboolean
rfb_decoder_state_framebuffer_update (RfbDecoder * decoder)
{
RfbBuffer *buffer;
int ret;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, 3);
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)
{
RfbBuffer *buffer;
int ret;
int x, y, w, h;
int encoding;
int size;
ret = rfb_bytestream_peek (decoder->bytestream, &buffer, 12);
if (ret < 12)
return FALSE;
x = RFB_GET_UINT16 (buffer->data + 0);
y = RFB_GET_UINT16 (buffer->data + 2);
w = RFB_GET_UINT16 (buffer->data + 4);
h = RFB_GET_UINT16 (buffer->data + 6);
encoding = RFB_GET_UINT32 (buffer->data + 8);
if (encoding != 0)
g_critical ("unimplemented encoding\n");
rfb_buffer_free (buffer);
size = w * h;
ret = rfb_bytestream_read (decoder->bytestream, &buffer, size + 12);
if (ret < size)
return FALSE;
if (decoder->paint_rect) {
decoder->paint_rect (decoder, x, y, w, h, buffer->data + 12);
}
rfb_buffer_free (buffer);
decoder->n_rects--;
if (decoder->n_rects == 0) {
decoder->state = rfb_decoder_state_normal;
}
return TRUE;
}
static gboolean
rfb_decoder_state_set_colour_map_entries (RfbDecoder * decoder)
{
g_critical ("not implemented");
return FALSE;
}
static gboolean
rfb_decoder_state_server_cut_text (RfbDecoder * decoder)
{
g_critical ("not implemented");
return FALSE;
}
void
rfb_decoder_send_update_request (RfbDecoder * decoder,
gboolean incremental, int x, int y, int width, int height)
{
guint8 data[10];
data[0] = 3;
data[1] = incremental;
RFB_SET_UINT16 (data + 2, x);
RFB_SET_UINT16 (data + 4, y);
RFB_SET_UINT16 (data + 6, width);
RFB_SET_UINT16 (data + 8, height);
rfb_decoder_send (decoder, data, 10);
}
void
rfb_decoder_send_key_event (RfbDecoder * decoder, unsigned int key,
gboolean down_flag)
{
guint8 data[8];
data[0] = 4;
data[1] = down_flag;
RFB_SET_UINT16 (data + 2, 0);
RFB_SET_UINT32 (data + 4, key);
rfb_decoder_send (decoder, data, 8);
}
void
rfb_decoder_send_pointer_event (RfbDecoder * decoder,
int button_mask, int x, int y)
{
guint8 data[6];
data[0] = 5;
data[1] = button_mask;
RFB_SET_UINT16 (data + 2, x);
RFB_SET_UINT16 (data + 4, y);
rfb_decoder_send (decoder, data, 6);
}
int
rfb_decoder_send (RfbDecoder * decoder, guint8 * buffer, int len)
{
return decoder->send_data (buffer, len, decoder->buffer_handler_data);
}

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#ifndef _LIBRFB_DECODER_H_
#define _LIBRFB_DECODER_H_
#include <glib.h>
#include <librfb/rfbbytestream.h>
G_BEGIN_DECLS
typedef struct _RfbDecoder RfbDecoder;
struct _RfbDecoder
{
int (*send_data) (guint8 *buffer, int length, gpointer user_data);
gpointer buffer_handler_data;
RfbBytestream *bytestream;
gpointer decoder_private;
void (*paint_rect) (RfbDecoder *decoder, int x, int y, int w, int h,
guint8 *data);
void (*copy_rect) (RfbDecoder *decoder, int x, int y, int w, int h,
int src_x, int src_y);
/* settable properties */
gboolean shared_flag;
/* readable properties */
gboolean inited;
int protocol_major;
int protocol_minor;
unsigned int security_type;
unsigned int width;
unsigned int height;
unsigned int bpp;
unsigned int depth;
gboolean big_endian;
gboolean true_colour;
unsigned int red_max;
unsigned int green_max;
unsigned int blue_max;
unsigned int red_shift;
unsigned int green_shift;
unsigned int blue_shift;
char *name;
/* state information */
gboolean (*state) (RfbDecoder *decoder);
int n_rects;
};
#if 0
typedef struct _RfbRect
{
RfbConnection *connection;
unsigned int x_pos;
unsigned int y_pos;
unsigned int width;
unsigned int height;
unsigned int encoding_type;
char *data;
} RfbRect;
#endif
RfbDecoder *rfb_decoder_new (void);
void rfb_decoder_use_file_descriptor (RfbDecoder * decoder, int fd);
void rfb_decoder_connect_tcp (RfbDecoder *decoder, char * addr, unsigned int port);
void rfb_decoder_set_peer (RfbDecoder * decoder);
gboolean rfb_decoder_iterate (RfbDecoder * decoder);
int rfb_decoder_send (RfbDecoder * decoder, guint8 *data, int len);
void rfb_decoder_send_update_request (RfbDecoder * decoder,
gboolean incremental, int x, int y, int width, int height);
void rfb_decoder_send_key_event (RfbDecoder * decoder, unsigned int key,
gboolean down_flag);
void rfb_decoder_send_pointer_event (RfbDecoder * decoder,
int button_mask, int x, int y);
G_END_DECLS
#endif

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#ifndef _LIBRFB_UTIL_H_
#define _LIBRFB_UTIL_H_
#include <glib.h>
G_BEGIN_DECLS
G_END_DECLS
#endif