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1.1 root 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:
35: #define BPP 8
36: #include "vnc-enc-hextile-template.h"
37: #undef BPP
38:
39: #define BPP 16
40: #include "vnc-enc-hextile-template.h"
41: #undef BPP
42:
43: #define BPP 32
44: #include "vnc-enc-hextile-template.h"
45: #undef BPP
46:
47: #define GENERIC
48: #define BPP 8
49: #include "vnc-enc-hextile-template.h"
50: #undef BPP
51: #undef GENERIC
52:
53: #define GENERIC
54: #define BPP 16
55: #include "vnc-enc-hextile-template.h"
56: #undef BPP
57: #undef GENERIC
58:
59: #define GENERIC
60: #define BPP 32
61: #include "vnc-enc-hextile-template.h"
62: #undef BPP
63: #undef GENERIC
64:
65: int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
66: int y, int w, int h)
67: {
68: int i, j;
69: int has_fg, has_bg;
70: uint8_t *last_fg, *last_bg;
71: VncDisplay *vd = vs->vd;
72:
1.1.1.2 ! root 73: last_fg = (uint8_t *) g_malloc(vd->server->pf.bytes_per_pixel);
! 74: last_bg = (uint8_t *) g_malloc(vd->server->pf.bytes_per_pixel);
1.1 root 75: has_fg = has_bg = 0;
76: for (j = y; j < (y + h); j += 16) {
77: for (i = x; i < (x + w); i += 16) {
78: vs->hextile.send_tile(vs, i, j,
79: MIN(16, x + w - i), MIN(16, y + h - j),
80: last_bg, last_fg, &has_bg, &has_fg);
81: }
82: }
1.1.1.2 ! root 83: g_free(last_fg);
! 84: g_free(last_bg);
1.1 root 85:
86: return 1;
87: }
88:
89: void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
90: {
91: if (!generic) {
92: switch (vs->ds->surface->pf.bits_per_pixel) {
93: case 8:
94: vs->hextile.send_tile = send_hextile_tile_8;
95: break;
96: case 16:
97: vs->hextile.send_tile = send_hextile_tile_16;
98: break;
99: case 32:
100: vs->hextile.send_tile = send_hextile_tile_32;
101: break;
102: }
103: } else {
104: switch (vs->ds->surface->pf.bits_per_pixel) {
105: case 8:
106: vs->hextile.send_tile = send_hextile_tile_generic_8;
107: break;
108: case 16:
109: vs->hextile.send_tile = send_hextile_tile_generic_16;
110: break;
111: case 32:
112: vs->hextile.send_tile = send_hextile_tile_generic_32;
113: break;
114: }
115: }
116: }
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