2 * QEMU VNC display driver: hextile encoding
5 * Copyright (C) 2006 Fabrice Bellard
6 * Copyright (C) 2009 Red Hat, Inc
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
31 ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
32 ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
36 #include "vnc-enc-hextile-template.h"
41 #include "vnc-enc-hextile-template.h"
45 int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
50 uint8_t *last_fg, *last_bg;
52 last_fg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES);
53 last_bg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES);
55 for (j = y; j < (y + h); j += 16) {
56 for (i = x; i < (x + w); i += 16) {
57 vs->hextile.send_tile(vs, i, j,
58 MIN(16, x + w - i), MIN(16, y + h - j),
59 last_bg, last_fg, &has_bg, &has_fg);
68 void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
71 switch (VNC_SERVER_FB_BITS) {
73 vs->hextile.send_tile = send_hextile_tile_32;
77 switch (VNC_SERVER_FB_BITS) {
79 vs->hextile.send_tile = send_hextile_tile_generic_32;