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gst/librfb/rfbdecoder.*: Add CoRRE encoding

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Original commit message from CVS:
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
Add CoRRE encoding
This commit is contained in:
Thijs Vermeir 2007-11-30 14:08:15 +00:00
parent 5d0e483c8e
commit ddd4af604a
3 changed files with 47 additions and 0 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2007-11-30 Thijs Vermeir <thijsvermeir@gmail.com>
* gst/librfb/rfbdecoder.c:
* gst/librfb/rfbdecoder.h:
Add CoRRE encoding
2007-11-30 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/mpegtsparse/mpegtsparse.c:

40
gst/librfb/rfbdecoder.c
View file

@ -54,6 +54,8 @@ static void rfb_decoder_copyrect_encoding (RfbDecoder * decoder, gint start_x,
gint start_y, gint rect_w, gint rect_h);
static void rfb_decoder_rre_encoding (RfbDecoder * decoder, gint start_x,
gint start_y, gint rect_w, gint rect_h);
static void rfb_decoder_corre_encoding (RfbDecoder * decoder, gint start_x,
gint start_y, gint rect_w, gint rect_h);
RfbDecoder *
rfb_decoder_new (void)
@ -429,6 +431,7 @@ rfb_decoder_state_set_encodings (RfbDecoder * decoder)
GST_DEBUG ("entered set encodings");
encoder_list = g_slist_append (encoder_list, (guint32 *) ENCODING_TYPE_CORRE);
encoder_list = g_slist_append (encoder_list, (guint32 *) ENCODING_TYPE_RRE);
if (decoder->use_copyrect) {
encoder_list =
@ -618,6 +621,9 @@ rfb_decoder_state_framebuffer_update_rectangle (RfbDecoder * decoder)
case ENCODING_TYPE_RRE:
rfb_decoder_rre_encoding (decoder, x, y, w, h);
break;
case ENCODING_TYPE_CORRE:
rfb_decoder_corre_encoding (decoder, x, y, w, h);
break;
default:
g_critical ("unimplemented encoding\n");
break;
@ -746,6 +752,40 @@ rfb_decoder_rre_encoding (RfbDecoder * decoder, gint start_x, gint start_y,
}
}
static void
rfb_decoder_corre_encoding (RfbDecoder * decoder, gint start_x, gint start_y,
gint rect_w, gint rect_h)
{
guint8 *buffer;
guint32 number_of_rectangles, color;
guint8 x, y, w, h;
buffer = rfb_decoder_read (decoder, 4 + decoder->bytespp);
number_of_rectangles = RFB_GET_UINT32 (buffer);
color = GUINT32_SWAP_LE_BE ((RFB_GET_UINT32 (buffer + 4)));
g_free (buffer);
GST_DEBUG ("number of rectangles :%d", number_of_rectangles);
/* color the background of this rectangle */
rfb_decoder_fill_rectangle (decoder, start_x, start_y, rect_w, rect_h, color);
while (number_of_rectangles--) {
buffer = rfb_decoder_read (decoder, decoder->bytespp + 8);
color = GUINT32_SWAP_LE_BE ((RFB_GET_UINT32 (buffer)));
x = RFB_GET_UINT8 (buffer + decoder->bytespp);
y = RFB_GET_UINT8 (buffer + decoder->bytespp + 1);
w = RFB_GET_UINT8 (buffer + decoder->bytespp + 2);
h = RFB_GET_UINT8 (buffer + decoder->bytespp + 3);
/* draw the rectangle in the foreground */
rfb_decoder_fill_rectangle (decoder, start_x + x, start_y + y, w, h, color);
g_free (buffer);
}
}
static gboolean
rfb_decoder_state_set_colour_map_entries (RfbDecoder * decoder)
{

1
gst/librfb/rfbdecoder.h
View file

@ -20,6 +20,7 @@ G_BEGIN_DECLS enum
#define ENCODING_TYPE_RAW 0
#define ENCODING_TYPE_COPYRECT 1
#define ENCODING_TYPE_RRE 2
#define ENCODING_TYPE_CORRE 4
typedef struct _RfbDecoder RfbDecoder;