gst/librfb/: Added copyrect encoding

Original commit message from CVS:
* gst/librfb/d3des.h:
* gst/librfb/gstrfbsrc.c:
* gst/librfb/gstrfbsrc.h:
* gst/librfb/rfbbuffer.h:
* gst/librfb/rfbcontext.h:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
* gst/librfb/rfbutil.h:
* gst/librfb/vncauth.h:
Added copyrect encoding
This commit is contained in:
Thijs Vermeir 2007-10-31 14:09:25 +00:00
parent 1571bc2336
commit aac84ad1c7
10 changed files with 172 additions and 126 deletions

View file

@ -1,3 +1,16 @@
2007-10-31 Thijs Vermeir <thijsvermeir@gmail.com>
* gst/librfb/d3des.h:
* gst/librfb/gstrfbsrc.c:
* gst/librfb/gstrfbsrc.h:
* gst/librfb/rfbbuffer.h:
* gst/librfb/rfbcontext.h:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
* gst/librfb/rfbutil.h:
* gst/librfb/vncauth.h:
Added copyrect encoding
2007-10-31 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* sys/dvb/camswclient.c:

View file

@ -19,28 +19,32 @@
* (GEnie : OUTER; CIS : [71755,204])
*/
#define EN0 0 /* MODE == encrypt */
#define DE1 1 /* MODE == decrypt */
#define EN0 0 /* MODE == encrypt */
#define DE1 1 /* MODE == decrypt */
extern void deskey (unsigned char *, int);
extern void deskey(unsigned char *, int);
/* hexkey[8] MODE
* Sets the internal key register according to the hexadecimal
* key contained in the 8 bytes of hexkey, according to the DES,
* for encryption or decryption according to MODE.
*/
extern void usekey(unsigned long *);
extern void usekey (unsigned long *);
/* cookedkey[32]
* Loads the internal key register with the data in cookedkey.
*/
extern void cpkey(unsigned long *);
extern void cpkey (unsigned long *);
/* cookedkey[32]
* Copies the contents of the internal key register into the storage
* located at &cookedkey[0].
*/
extern void des(unsigned char *, unsigned char *);
extern void des (unsigned char *, unsigned char *);
/* from[8] to[8]
* Encrypts/Decrypts (according to the key currently loaded in the
* internal key register) one block of eight bytes at address 'from'
@ -49,4 +53,3 @@ extern void des(unsigned char *, unsigned char *);
/* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery
********************************************************************/

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@ -84,8 +84,6 @@ static gboolean gst_rfb_src_stop (GstBaseSrc * bsrc);
static gboolean gst_rfb_src_event (GstBaseSrc * bsrc, GstEvent * event);
static GstFlowReturn gst_rfb_src_create (GstPushSrc * psrc,
GstBuffer ** outbuf);
static void gst_rfb_src_paint_rect (RfbDecoder * decoder, gint x, gint y,
gint w, gint h, guint8 * data);
GST_BOILERPLATE (GstRfbSrc, gst_rfb_src, GstPushSrc, GST_TYPE_PUSH_SRC);
@ -327,11 +325,16 @@ gst_rfb_src_start (GstBaseSrc * bsrc)
rfb_decoder_iterate (decoder);
}
decoder->rect_width =
(decoder->rect_width ? decoder->rect_width : decoder->width);
decoder->rect_height =
(decoder->rect_height ? decoder->rect_height : decoder->height);
g_object_set (bsrc, "blocksize",
src->decoder->width * src->decoder->height * (decoder->bpp / 8), NULL);
src->frame = g_malloc (bsrc->blocksize);
decoder->paint_rect = gst_rfb_src_paint_rect;
decoder->frame = g_malloc (bsrc->blocksize);
decoder->prev_frame = g_malloc (bsrc->blocksize);
decoder->decoder_private = src;
GST_DEBUG_OBJECT (src, "setting caps width to %d and height to %d",
@ -356,9 +359,14 @@ gst_rfb_src_stop (GstBaseSrc * bsrc)
src->decoder->fd = -1;
if (src->frame) {
g_free (src->frame);
src->frame = NULL;
if (src->decoder->frame) {
g_free (src->decoder->frame);
src->decoder->frame = NULL;
}
if (src->decoder->prev_frame) {
g_free (src->decoder->prev_frame);
src->decoder->prev_frame = NULL;
}
return TRUE;
@ -373,13 +381,10 @@ gst_rfb_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
GstFlowReturn ret;
rfb_decoder_send_update_request (decoder, src->incremental_update,
decoder->offset_x, decoder->offset_y,
(decoder->rect_width ? decoder->rect_width : decoder->width),
(decoder->rect_height ? decoder->rect_height : decoder->height));
// src->inter = TRUE;
decoder->offset_x, decoder->offset_y, decoder->rect_width,
decoder->rect_height);
src->go = TRUE;
while (src->go) {
while (decoder->state != NULL) {
rfb_decoder_iterate (decoder);
}
@ -394,7 +399,7 @@ gst_rfb_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
return GST_FLOW_ERROR;
}
memcpy (GST_BUFFER_DATA (*outbuf), src->frame, newsize);
memcpy (GST_BUFFER_DATA (*outbuf), decoder->frame, newsize);
GST_BUFFER_SIZE (*outbuf) = newsize;
return GST_FLOW_OK;
@ -449,32 +454,6 @@ gst_rfb_src_event (GstBaseSrc * bsrc, GstEvent * event)
return TRUE;
}
static void
gst_rfb_src_paint_rect (RfbDecoder * decoder, gint start_x, gint start_y,
gint rect_w, gint rect_h, guint8 * data)
{
gint pos_y;
guint8 *frame;
GstRfbSrc *src;
gint width;
guint32 src_offset;
guint32 dst_offset;
//printf ("painting %d,%d (%dx%d)\n", start_x, start_y, rect_w, rect_h);
src = GST_RFB_SRC (decoder->decoder_private);
frame = src->frame;
width = decoder->width;
for (pos_y = start_y; pos_y < (start_y + rect_h); pos_y++) {
src_offset = (pos_y - start_y) * rect_w * decoder->bpp / 8;
dst_offset = ((pos_y * width) + start_x) * decoder->bpp / 8;
memcpy (frame + dst_offset, data + src_offset, rect_w * decoder->bpp / 8);
}
src->go = FALSE;
}
static gboolean
plugin_init (GstPlugin * plugin)
{

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@ -27,7 +27,6 @@
#include <librfb/rfb.h>
G_BEGIN_DECLS
#define GST_TYPE_RFB_SRC \
(gst_rfb_src_get_type())
#define GST_RFB_SRC(obj) \
@ -38,7 +37,6 @@ G_BEGIN_DECLS
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RFB_SRC))
#define GST_IS_RFB_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RFB_SRC))
typedef struct _GstRfbSrc GstRfbSrc;
typedef struct _GstRfbSrcClass GstRfbSrcClass;
@ -55,7 +53,6 @@ struct _GstRfbSrc
gint port;
RfbDecoder *decoder;
guint8 *frame;
gboolean go;
gboolean incremental_update;
@ -70,5 +67,4 @@ struct _GstRfbSrc
GType gst_rfb_src_get_type (void);
G_END_DECLS
#endif

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@ -3,10 +3,8 @@
#include <glib.h>
G_BEGIN_DECLS
typedef struct _RfbBuffer RfbBuffer;
typedef void(*RfbBufferFreeFunc)(guint8 *data, gpointer priv);
G_BEGIN_DECLS typedef struct _RfbBuffer RfbBuffer;
typedef void (*RfbBufferFreeFunc) (guint8 * data, gpointer priv);
struct _RfbBuffer
{
@ -17,10 +15,9 @@ struct _RfbBuffer
gint length;
};
RfbBuffer *rfb_buffer_new (void);
RfbBuffer *rfb_buffer_new (void);
RfbBuffer *rfb_buffer_new_and_alloc (gint len);
void rfb_buffer_free (RfbBuffer *buffer);
void rfb_buffer_free (RfbBuffer * buffer);
G_END_DECLS
#endif

View file

@ -3,9 +3,7 @@
#include <glib.h>
G_BEGIN_DECLS
typedef struct _RfbContext
G_BEGIN_DECLS typedef struct _RfbContext
{
RfbConnection *connection;
@ -34,5 +32,4 @@ typedef struct _RfbRect
} RfbRect;
G_END_DECLS
#endif

View file

@ -48,6 +48,10 @@ 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);
static void rfb_decoder_raw_encoding (RfbDecoder * decoder, gint start_x,
gint start_y, gint rect_w, gint rect_h);
static void rfb_decoder_copyrect_encoding (RfbDecoder * decoder, gint start_x,
gint start_y, gint rect_w, gint rect_h);
RfbDecoder *
rfb_decoder_new (void)
@ -181,6 +185,12 @@ rfb_decoder_send_update_request (RfbDecoder * decoder,
RFB_SET_UINT16 (data + 8, height);
rfb_decoder_send (decoder, data, 10);
/* create a backup of the prev frame for copyrect encoding */
memcpy (decoder->prev_frame, decoder->frame,
decoder->rect_width * decoder->rect_height * decoder->bpp / 8);
decoder->state = rfb_decoder_state_normal;
}
void
@ -388,18 +398,24 @@ rfb_decoder_state_security_result (RfbDecoder * decoder)
static gboolean
rfb_decoder_state_set_encodings (RfbDecoder * decoder)
{
guint8 *buffer = g_malloc0 (8); // 4 + 4 * nr_of_encodings
guint8 *buffer = g_malloc0 (12); // 4 + 4 * nr_of_encodings
GST_DEBUG ("Sending encoding types to server");
buffer[0] = 2; // message-type
buffer[3] = 1; // number of encodings
buffer[3] = 2; // number of encodings
/* RAW encoding (0) */
rfb_decoder_send (decoder, buffer, 8);
/* CopyRect encoding (1) */
buffer[11] = 1;
rfb_decoder_send (decoder, buffer, 12);
g_free (buffer);
decoder->state = rfb_decoder_state_normal;
decoder->inited = TRUE;
return TRUE;
}
@ -492,8 +508,6 @@ rfb_decoder_state_wait_for_server_initialisation (RfbDecoder * decoder)
}
decoder->state = rfb_decoder_state_set_encodings;
decoder->inited = TRUE;
return TRUE;
}
@ -503,11 +517,13 @@ rfb_decoder_state_normal (RfbDecoder * decoder)
guint8 *buffer;
gint message_type;
GST_DEBUG ("decoder_state_normal");
buffer = rfb_decoder_read (decoder, 1);
message_type = RFB_GET_UINT8 (buffer);
switch (message_type) {
case 0:
case MESSAGE_TYPE_FRAMEBUFFER_UPDATE:
GST_DEBUG ("Receiving framebuffer update");
decoder->state = rfb_decoder_state_framebuffer_update;
break;
@ -584,7 +600,6 @@ 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);
@ -599,28 +614,87 @@ rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
GST_DEBUG ("w:%d h:%d", w, h);
GST_DEBUG ("encoding: %d", encoding);
if (encoding != 0)
g_critical ("unimplemented encoding\n");
g_free (buffer);
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);
switch (encoding) {
case ENCODING_TYPE_RAW:
rfb_decoder_raw_encoding (decoder, x, y, w, h);
break;
case ENCODING_TYPE_COPYRECT:
rfb_decoder_copyrect_encoding (decoder, x, y, w, h);
break;
default:
g_critical ("unimplemented encoding\n");
break;
}
g_free (buffer);
decoder->n_rects--;
if (decoder->n_rects == 0) {
decoder->state = rfb_decoder_state_normal;
decoder->state = NULL;
} else {
decoder->state = rfb_decoder_state_framebuffer_update_rectangle;
}
return TRUE;
}
static void
rfb_decoder_raw_encoding (RfbDecoder * decoder, gint start_x, gint start_y,
gint rect_w, gint rect_h)
{
gint pos_y, size;
guint8 *frame, *buffer;
gint width;
guint32 src_offset;
guint32 dst_offset;
/* read the data */
size = rect_h * rect_w * decoder->bpp / 8;
GST_DEBUG ("Reading %d bytes", size);
buffer = rfb_decoder_read (decoder, size);
frame = decoder->frame;
width = decoder->rect_width;
for (pos_y = start_y; pos_y < (start_y + rect_h); pos_y++) {
src_offset = (pos_y - start_y) * rect_w * decoder->bpp / 8;
dst_offset = ((pos_y * width) + start_x) * decoder->bpp / 8;
memcpy (frame + dst_offset, buffer + src_offset, rect_w * decoder->bpp / 8);
}
g_free (buffer);
}
static void
rfb_decoder_copyrect_encoding (RfbDecoder * decoder, gint start_x, gint start_y,
gint rect_w, gint rect_h)
{
guint16 src_x, src_y;
guint32 src_offset;
guint32 dst_offset;
gint pos_y, max_y, line_width, copyrect_width;
guint8 *buffer;
buffer = rfb_decoder_read (decoder, 4);
max_y = start_y + rect_h;
src_x = RFB_GET_UINT16 (buffer);
src_y = RFB_GET_UINT16 (buffer + 2);
GST_DEBUG ("Copyrect from %d %d", src_x, src_y);
dst_offset =
(((start_y - 1) * decoder->rect_width) + start_x) * decoder->bpp / 8;
src_offset = (((src_y - 1) * decoder->rect_width) + src_x) * decoder->bpp / 8;
line_width = decoder->rect_width * decoder->bpp / 8;
copyrect_width = rect_w * decoder->bpp / 8;
for (pos_y = start_y; pos_y < max_y; pos_y++) {
dst_offset += line_width;
src_offset += line_width;
memcpy (decoder->frame + dst_offset, decoder->prev_frame + src_offset,
copyrect_width);
}
g_free (buffer);
}
static gboolean
rfb_decoder_state_set_colour_map_entries (RfbDecoder * decoder)
{

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@ -3,12 +3,11 @@
#include <glib.h>
G_BEGIN_DECLS
enum {
SECURITY_FAIL = 0,
SECURITY_NONE,
SECURITY_VNC,
G_BEGIN_DECLS enum
{
SECURITY_FAIL = 0,
SECURITY_NONE,
SECURITY_VNC,
};
#define IS_VERSION(x, ma, mi) ((x->protocol_major == ma) && (x->protocol_minor == mi))
@ -16,23 +15,25 @@ enum {
#define IS_VERSION_3_7(x) IS_VERSION(x, 3, 7)
#define IS_VERSION_3_8(x) IS_VERSION(x, 3, 8)
#define MESSAGE_TYPE_FRAMEBUFFER_UPDATE 0
#define ENCODING_TYPE_RAW 0
#define ENCODING_TYPE_COPYRECT 1
typedef struct _RfbDecoder RfbDecoder;
struct _RfbDecoder
{
/* callbacks */
gint (*send_data) (guint8 *buffer, gint length, gpointer user_data);
void (*paint_rect) (RfbDecoder *decoder, gint x, gint y, gint w, gint h,
guint8 *data);
void (*copy_rect) (RfbDecoder *decoder, gint x, gint y, gint w, gint h,
gint src_x, gint src_y);
gboolean (*state) (RfbDecoder *decoder);
gboolean (*state) (RfbDecoder * decoder);
gpointer buffer_handler_data;
gint fd;
gpointer decoder_private;
guint8 *frame;
guint8 *prev_frame;
/* settable properties */
gboolean shared_flag;
@ -85,28 +86,18 @@ typedef struct _RfbRect
} RfbRect;
#endif
RfbDecoder *rfb_decoder_new (void);
void rfb_decoder_free (RfbDecoder * decoder);
void rfb_decoder_use_file_descriptor (RfbDecoder * decoder,
gint fd);
gboolean rfb_decoder_connect_tcp (RfbDecoder * decoder,
gchar * addr,
guint port);
gboolean rfb_decoder_iterate (RfbDecoder * decoder);
void rfb_decoder_send_update_request (RfbDecoder * decoder,
gboolean incremental,
gint x,
gint y,
gint width,
gint height);
void rfb_decoder_send_key_event (RfbDecoder * decoder,
guint key,
gboolean down_flag);
void rfb_decoder_send_pointer_event (RfbDecoder * decoder,
gint button_mask,
gint x,
gint y);
RfbDecoder *rfb_decoder_new (void);
void rfb_decoder_free (RfbDecoder * decoder);
void rfb_decoder_use_file_descriptor (RfbDecoder * decoder, gint fd);
gboolean rfb_decoder_connect_tcp (RfbDecoder * decoder,
gchar * addr, guint port);
gboolean rfb_decoder_iterate (RfbDecoder * decoder);
void rfb_decoder_send_update_request (RfbDecoder * decoder,
gboolean incremental, gint x, gint y, gint width, gint height);
void rfb_decoder_send_key_event (RfbDecoder * decoder,
guint key, gboolean down_flag);
void rfb_decoder_send_pointer_event (RfbDecoder * decoder,
gint button_mask, gint x, gint y);
G_END_DECLS
#endif

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@ -3,8 +3,5 @@
#include <glib.h>
G_BEGIN_DECLS
G_END_DECLS
G_BEGIN_DECLS G_END_DECLS
#endif

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@ -24,8 +24,7 @@
#define MAXPWLEN 8
#define CHALLENGESIZE 16
extern int vncEncryptAndStorePasswd(char *passwd, char *fname);
extern char *vncDecryptPasswdFromFile(char *fname);
extern void vncRandomBytes(unsigned char *bytes);
extern void vncEncryptBytes(unsigned char *bytes, char *passwd);
extern int vncEncryptAndStorePasswd (char *passwd, char *fname);
extern char *vncDecryptPasswdFromFile (char *fname);
extern void vncRandomBytes (unsigned char *bytes);
extern void vncEncryptBytes (unsigned char *bytes, char *passwd);