Merge pull request #550 from jsorg71/bitmap_update
fixes for bitmap update
This commit is contained in:
metalefty
GitHub
commit
1753f6317c
@ -27,6 +27,8 @@
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#define LLOGLN(_level, _args) \
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do { if (_level < LOG_LEVEL) { g_writeln _args ; } } while (0)
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#define MAX_BITMAP_BUF_SIZE (16 * 1024) /* 16K */
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/******************************************************************************/
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struct xrdp_session *EXPORT_CC
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libxrdp_init(tbus id, struct trans *trans)
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@ -373,15 +375,15 @@ libxrdp_send_bell(struct xrdp_session *session)
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return 0;
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}
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/*****************************************************************************/
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int EXPORT_CC
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libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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int bpp, char *data, int x, int y, int cx, int cy)
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{
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int line_size = 0;
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int line_bytes = 0;
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int i = 0;
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int j = 0;
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int k;
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int total_lines = 0;
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int lines_sending = 0;
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int Bpp = 0;
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@ -389,27 +391,43 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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int bufsize = 0;
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int total_bufsize = 0;
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int num_updates = 0;
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int line_pad_bytes;
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int server_line_bytes;
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char *p_num_updates = (char *)NULL;
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char *p = (char *)NULL;
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char *q = (char *)NULL;
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struct stream *s = (struct stream *)NULL;
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struct stream *temp_s = (struct stream *)NULL;
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tui32 pixel;
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DEBUG(("libxrdp_send_bitmap sending bitmap"));
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LLOGLN(10, ("libxrdp_send_bitmap: sending bitmap"));
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Bpp = (bpp + 7) / 8;
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e = width % 4;
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if (e != 0)
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e = (4 - width) & 3;
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switch (bpp)
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{
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e = 4 - e;
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case 15:
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case 16:
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server_line_bytes = width * 2;
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break;
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case 24:
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case 32:
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server_line_bytes = width * 4;
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break;
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default: /* 8 bpp */
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server_line_bytes = width;
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break;
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}
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line_bytes = width * Bpp;
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line_pad_bytes = line_bytes + e * Bpp;
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line_size = width * Bpp;
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LLOGLN(10, ("libxrdp_send_bitmap: bpp %d Bpp %d line_bytes %d "
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"server_line_bytes %d", bpp, Bpp, line_bytes, server_line_bytes));
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make_stream(s);
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init_stream(s, 8192);
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init_stream(s, MAX_BITMAP_BUF_SIZE);
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if (session->client_info->use_bitmap_comp)
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{
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LLOGLN(10, ("libxrdp_send_bitmap: compression"));
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make_stream(temp_s);
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init_stream(temp_s, 65536);
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i = 0;
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@ -421,6 +439,8 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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while (i > 0)
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{
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LLOGLN(10, ("libxrdp_send_bitmap: i %d", i));
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total_bufsize = 0;
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num_updates = 0;
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xrdp_rdp_init_data((struct xrdp_rdp *)session->rdp, s);
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@ -440,10 +460,26 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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}
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p = s->p;
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lines_sending = xrdp_bitmap_compress(data, width, height,
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s, bpp,
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4096 - total_bufsize,
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i - 1, temp_s, e);
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if (bpp > 24)
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{
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LLOGLN(10, ("libxrdp_send_bitmap: 32 bpp"));
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lines_sending = xrdp_bitmap32_compress(data, width, height,
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s, 32,
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(MAX_BITMAP_BUF_SIZE - 100) - total_bufsize,
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i - 1, temp_s, e, 0x10);
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LLOGLN(10, ("libxrdp_send_bitmap: i %d lines_sending %d",
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i, lines_sending));
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}
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else
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{
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lines_sending = xrdp_bitmap_compress(data, width, height,
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s, bpp,
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(MAX_BITMAP_BUF_SIZE - 100) - total_bufsize,
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i - 1, temp_s, e);
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LLOGLN(10, ("libxrdp_send_bitmap: i %d lines_sending %d",
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i, lines_sending));
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}
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if (lines_sending == 0)
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{
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@ -470,6 +506,7 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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out_uint16_le(s, bufsize); /* compressed size */
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j = (width + e) * Bpp;
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j = j * lines_sending;
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total_bufsize += 18; /* bytes since pop layer */
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}
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else
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{
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@ -481,31 +518,42 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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out_uint16_le(s, j); /* line size */
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j = j * lines_sending;
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out_uint16_le(s, j); /* final size */
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total_bufsize += 26; /* bytes since pop layer */
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}
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if (j > 32768)
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LLOGLN(10, ("libxrdp_send_bitmap: decompressed pixels %d "
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"decompressed bytes %d compressed bytes %d",
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lines_sending * (width + e),
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line_pad_bytes * lines_sending, bufsize));
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if (j > MAX_BITMAP_BUF_SIZE)
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{
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g_writeln("error, decompressed size too big: %d bytes", j);
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LLOGLN(0, ("libxrdp_send_bitmap: error, decompressed "
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"size too big: %d bytes", j));
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}
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if (bufsize > 8192)
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if (bufsize > MAX_BITMAP_BUF_SIZE)
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{
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g_writeln("error, compressed size too big: %d bytes", bufsize);
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LLOGLN(0, ("libxrdp_send_bitmap: error, compressed size "
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"too big: %d bytes", bufsize));
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}
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s->p = s->end;
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}
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while (total_bufsize < 4096 && i > 0);
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while (total_bufsize < MAX_BITMAP_BUF_SIZE && i > 0);
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LLOGLN(10, ("libxrdp_send_bitmap: num_updates %d total_bufsize %d",
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num_updates, total_bufsize));
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p_num_updates[0] = num_updates;
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p_num_updates[1] = num_updates >> 8;
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xrdp_rdp_send_data((struct xrdp_rdp *)session->rdp, s,
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RDP_DATA_PDU_UPDATE);
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if (total_bufsize > 8192)
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if (total_bufsize > MAX_BITMAP_BUF_SIZE)
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{
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g_writeln("error, total compressed size too big: %d bytes",
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total_bufsize);
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LLOGLN(0, ("libxrdp_send_bitmap: error, total compressed "
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"size too big: %d bytes", total_bufsize));
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}
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}
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@ -513,22 +561,30 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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}
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else
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{
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LLOGLN(10, ("libxrdp_send_bitmap: no compression"));
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total_lines = height;
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i = 0;
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p = data;
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if (line_size > 0 && total_lines > 0)
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if (line_bytes > 0 && total_lines > 0)
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{
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while (i < total_lines)
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{
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lines_sending = 4096 / (line_size + e * Bpp);
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lines_sending = (MAX_BITMAP_BUF_SIZE - 100) / line_pad_bytes;
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if (i + lines_sending > total_lines)
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{
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lines_sending = total_lines - i;
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}
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p = p + line_size * lines_sending;
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if (lines_sending == 0)
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{
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LLOGLN(0, ("libxrdp_send_bitmap: error, lines_sending == zero"));
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break;
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}
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p += server_line_bytes * lines_sending;
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xrdp_rdp_init_data((struct xrdp_rdp *)session->rdp, s);
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out_uint16_le(s, RDP_UPDATE_BITMAP);
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out_uint16_le(s, 1); /* num updates */
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@ -540,14 +596,58 @@ libxrdp_send_bitmap(struct xrdp_session *session, int width, int height,
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out_uint16_le(s, lines_sending);
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out_uint16_le(s, bpp); /* bpp */
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out_uint16_le(s, 0); /* compress */
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out_uint16_le(s, (line_size + e * Bpp) * lines_sending); /* bufsize */
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out_uint16_le(s, line_pad_bytes * lines_sending); /* bufsize */
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q = p;
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for (j = 0; j < lines_sending; j++)
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switch (bpp)
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{
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q = q - line_size;
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out_uint8a(s, q, line_size); /* B_ENDIAN doesn't work here, todo */
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out_uint8s(s, e * Bpp);
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case 8:
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for (j = 0; j < lines_sending; j++)
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{
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q = q - line_bytes;
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out_uint8a(s, q, line_bytes);
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out_uint8s(s, e);
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}
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break;
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case 15:
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case 16:
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for (j = 0; j < lines_sending; j++)
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{
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q = q - server_line_bytes;
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for (k = 0; k < width; k++)
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{
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pixel = *((tui16*)(q + k * 2));
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out_uint16_le(s, pixel);
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}
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out_uint8s(s, e * 2);
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}
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break;
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case 24:
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for (j = 0; j < lines_sending; j++)
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{
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q = q - server_line_bytes;
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for (k = 0; k < width; k++)
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{
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pixel = *((tui32*)(q + k * 4));
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out_uint8(s, pixel);
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out_uint8(s, pixel >> 8);
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out_uint8(s, pixel >> 16);
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}
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out_uint8s(s, e * 3);
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}
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break;
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case 32:
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for (j = 0; j < lines_sending; j++)
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{
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q = q - server_line_bytes;
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for (k = 0; k < width; k++)
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{
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pixel = *((int*)(q + k * 4));
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out_uint32_le(s, pixel);
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}
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out_uint8s(s, e * 4);
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}
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break;
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}
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s_mark_end(s);
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@ -80,6 +80,7 @@ xrdp_caps_process_general(struct xrdp_rdp *self, struct stream *s,
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in_uint8s(s, 6);
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in_uint16_le(s, extraFlags); /* extraFlags (2 bytes) */
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self->client_info.op1 = extraFlags & NO_BITMAP_COMPRESSION_HDR;
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/* use_compact_packets is pretty much 'use rdp5' */
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self->client_info.use_compact_packets = (extraFlags != 0);
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/* op2 is a boolean to use compact bitmap headers in bitmap cache */
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