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1 | /* | |
2 | * QEMU VNC display driver: hextile encoding | |
3 | * | |
4 | * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> | |
5 | * Copyright (C) 2006 Fabrice Bellard | |
6 | * Copyright (C) 2009 Red Hat, Inc | |
7 | * | |
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: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
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 | |
24 | * THE SOFTWARE. | |
25 | */ | |
26 | ||
27 | #include "qemu/osdep.h" | |
28 | #include "vnc.h" | |
29 | ||
30 | static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h) | |
31 | { | |
32 | ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F); | |
33 | ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F); | |
34 | } | |
35 | ||
36 | #define BPP 32 | |
37 | #include "vnc-enc-hextile-template.h" | |
38 | #undef BPP | |
39 | ||
40 | #define GENERIC | |
41 | #define BPP 32 | |
42 | #include "vnc-enc-hextile-template.h" | |
43 | #undef BPP | |
44 | #undef GENERIC | |
45 | ||
46 | int vnc_hextile_send_framebuffer_update(VncState *vs, int x, | |
47 | int y, int w, int h) | |
48 | { | |
49 | int i, j; | |
50 | int has_fg, has_bg; | |
51 | uint8_t *last_fg, *last_bg; | |
52 | ||
53 | last_fg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES); | |
54 | last_bg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES); | |
55 | has_fg = has_bg = 0; | |
56 | for (j = y; j < (y + h); j += 16) { | |
57 | for (i = x; i < (x + w); i += 16) { | |
58 | vs->hextile.send_tile(vs, i, j, | |
59 | MIN(16, x + w - i), MIN(16, y + h - j), | |
60 | last_bg, last_fg, &has_bg, &has_fg); | |
61 | } | |
62 | } | |
63 | g_free(last_fg); | |
64 | g_free(last_bg); | |
65 | ||
66 | return 1; | |
67 | } | |
68 | ||
69 | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic) | |
70 | { | |
71 | if (!generic) { | |
72 | switch (VNC_SERVER_FB_BITS) { | |
73 | case 32: | |
74 | vs->hextile.send_tile = send_hextile_tile_32; | |
75 | break; | |
76 | } | |
77 | } else { | |
78 | switch (VNC_SERVER_FB_BITS) { | |
79 | case 32: | |
80 | vs->hextile.send_tile = send_hextile_tile_generic_32; | |
81 | break; | |
82 | } | |
83 | } | |
84 | } |