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70a4568f CC |
1 | /* |
2 | * QEMU VNC display driver: hextile encoding | |
3 | * | |
4 | * Copyright (C) 2006 Anthony Liguori <[email protected]> | |
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 "vnc.h" | |
28 | ||
29 | static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h) | |
30 | { | |
31 | ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F); | |
32 | ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F); | |
33 | } | |
34 | ||
70a4568f | 35 | #define BPP 32 |
245f7b51 | 36 | #include "vnc-enc-hextile-template.h" |
70a4568f CC |
37 | #undef BPP |
38 | ||
70a4568f CC |
39 | #define GENERIC |
40 | #define BPP 32 | |
245f7b51 | 41 | #include "vnc-enc-hextile-template.h" |
70a4568f CC |
42 | #undef BPP |
43 | #undef GENERIC | |
44 | ||
a885211e CC |
45 | int vnc_hextile_send_framebuffer_update(VncState *vs, int x, |
46 | int y, int w, int h) | |
70a4568f CC |
47 | { |
48 | int i, j; | |
49 | int has_fg, has_bg; | |
50 | uint8_t *last_fg, *last_bg; | |
70a4568f | 51 | |
9f64916d GH |
52 | last_fg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES); |
53 | last_bg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES); | |
70a4568f CC |
54 | has_fg = has_bg = 0; |
55 | for (j = y; j < (y + h); j += 16) { | |
56 | for (i = x; i < (x + w); i += 16) { | |
d1af0e05 | 57 | vs->hextile.send_tile(vs, i, j, |
70a4568f CC |
58 | MIN(16, x + w - i), MIN(16, y + h - j), |
59 | last_bg, last_fg, &has_bg, &has_fg); | |
60 | } | |
61 | } | |
ae878b17 SW |
62 | g_free(last_fg); |
63 | g_free(last_bg); | |
70a4568f | 64 | |
a885211e | 65 | return 1; |
70a4568f CC |
66 | } |
67 | ||
68 | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic) | |
69 | { | |
70 | if (!generic) { | |
9f64916d | 71 | switch (VNC_SERVER_FB_BITS) { |
9f64916d GH |
72 | case 32: |
73 | vs->hextile.send_tile = send_hextile_tile_32; | |
74 | break; | |
70a4568f CC |
75 | } |
76 | } else { | |
9f64916d | 77 | switch (VNC_SERVER_FB_BITS) { |
9f64916d GH |
78 | case 32: |
79 | vs->hextile.send_tile = send_hextile_tile_generic_32; | |
80 | break; | |
70a4568f CC |
81 | } |
82 | } | |
83 | } |