root / ui / vnc-enc-hextile.c @ d4970b07
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1 | 70a4568f | Corentin Chary | /*
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2 | 70a4568f | Corentin Chary | * QEMU VNC display driver: hextile encoding
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3 | 70a4568f | Corentin Chary | *
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4 | 70a4568f | Corentin Chary | * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
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5 | 70a4568f | Corentin Chary | * Copyright (C) 2006 Fabrice Bellard
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6 | 70a4568f | Corentin Chary | * Copyright (C) 2009 Red Hat, Inc
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7 | 70a4568f | Corentin Chary | *
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8 | 70a4568f | Corentin Chary | * Permission is hereby granted, free of charge, to any person obtaining a copy
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9 | 70a4568f | Corentin Chary | * of this software and associated documentation files (the "Software"), to deal
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10 | 70a4568f | Corentin Chary | * in the Software without restriction, including without limitation the rights
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11 | 70a4568f | Corentin Chary | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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12 | 70a4568f | Corentin Chary | * copies of the Software, and to permit persons to whom the Software is
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13 | 70a4568f | Corentin Chary | * furnished to do so, subject to the following conditions:
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14 | 70a4568f | Corentin Chary | *
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15 | 70a4568f | Corentin Chary | * The above copyright notice and this permission notice shall be included in
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16 | 70a4568f | Corentin Chary | * all copies or substantial portions of the Software.
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17 | 70a4568f | Corentin Chary | *
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18 | 70a4568f | Corentin Chary | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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19 | 70a4568f | Corentin Chary | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20 | 70a4568f | Corentin Chary | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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21 | 70a4568f | Corentin Chary | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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22 | 70a4568f | Corentin Chary | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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23 | 70a4568f | Corentin Chary | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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24 | 70a4568f | Corentin Chary | * THE SOFTWARE.
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25 | 70a4568f | Corentin Chary | */
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26 | 70a4568f | Corentin Chary | |
27 | 70a4568f | Corentin Chary | #include "vnc.h" |
28 | 70a4568f | Corentin Chary | |
29 | 70a4568f | Corentin Chary | static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h) |
30 | 70a4568f | Corentin Chary | { |
31 | 70a4568f | Corentin Chary | ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F); |
32 | 70a4568f | Corentin Chary | ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F); |
33 | 70a4568f | Corentin Chary | } |
34 | 70a4568f | Corentin Chary | |
35 | 70a4568f | Corentin Chary | #define BPP 8 |
36 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
37 | 70a4568f | Corentin Chary | #undef BPP
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38 | 70a4568f | Corentin Chary | |
39 | 70a4568f | Corentin Chary | #define BPP 16 |
40 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
41 | 70a4568f | Corentin Chary | #undef BPP
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42 | 70a4568f | Corentin Chary | |
43 | 70a4568f | Corentin Chary | #define BPP 32 |
44 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
45 | 70a4568f | Corentin Chary | #undef BPP
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46 | 70a4568f | Corentin Chary | |
47 | 70a4568f | Corentin Chary | #define GENERIC
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48 | 70a4568f | Corentin Chary | #define BPP 8 |
49 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
50 | 70a4568f | Corentin Chary | #undef BPP
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51 | 70a4568f | Corentin Chary | #undef GENERIC
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52 | 70a4568f | Corentin Chary | |
53 | 70a4568f | Corentin Chary | #define GENERIC
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54 | 70a4568f | Corentin Chary | #define BPP 16 |
55 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
56 | 70a4568f | Corentin Chary | #undef BPP
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57 | 70a4568f | Corentin Chary | #undef GENERIC
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58 | 70a4568f | Corentin Chary | |
59 | 70a4568f | Corentin Chary | #define GENERIC
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60 | 70a4568f | Corentin Chary | #define BPP 32 |
61 | 245f7b51 | Corentin Chary | #include "vnc-enc-hextile-template.h" |
62 | 70a4568f | Corentin Chary | #undef BPP
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63 | 70a4568f | Corentin Chary | #undef GENERIC
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64 | 70a4568f | Corentin Chary | |
65 | a885211e | Corentin Chary | int vnc_hextile_send_framebuffer_update(VncState *vs, int x, |
66 | a885211e | Corentin Chary | int y, int w, int h) |
67 | 70a4568f | Corentin Chary | { |
68 | 70a4568f | Corentin Chary | int i, j;
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69 | 70a4568f | Corentin Chary | int has_fg, has_bg;
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70 | 70a4568f | Corentin Chary | uint8_t *last_fg, *last_bg; |
71 | 70a4568f | Corentin Chary | VncDisplay *vd = vs->vd; |
72 | 70a4568f | Corentin Chary | |
73 | 70a4568f | Corentin Chary | last_fg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); |
74 | 70a4568f | Corentin Chary | last_bg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); |
75 | 70a4568f | Corentin Chary | has_fg = has_bg = 0;
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76 | 70a4568f | Corentin Chary | for (j = y; j < (y + h); j += 16) { |
77 | 70a4568f | Corentin Chary | for (i = x; i < (x + w); i += 16) { |
78 | d1af0e05 | Corentin Chary | vs->hextile.send_tile(vs, i, j, |
79 | 70a4568f | Corentin Chary | MIN(16, x + w - i), MIN(16, y + h - j), |
80 | 70a4568f | Corentin Chary | last_bg, last_fg, &has_bg, &has_fg); |
81 | 70a4568f | Corentin Chary | } |
82 | 70a4568f | Corentin Chary | } |
83 | 70a4568f | Corentin Chary | free(last_fg); |
84 | 70a4568f | Corentin Chary | free(last_bg); |
85 | 70a4568f | Corentin Chary | |
86 | a885211e | Corentin Chary | return 1; |
87 | 70a4568f | Corentin Chary | } |
88 | 70a4568f | Corentin Chary | |
89 | 70a4568f | Corentin Chary | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic) |
90 | 70a4568f | Corentin Chary | { |
91 | 70a4568f | Corentin Chary | if (!generic) {
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92 | 70a4568f | Corentin Chary | switch (vs->ds->surface->pf.bits_per_pixel) {
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93 | 70a4568f | Corentin Chary | case 8: |
94 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_8; |
95 | 70a4568f | Corentin Chary | break;
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96 | 70a4568f | Corentin Chary | case 16: |
97 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_16; |
98 | 70a4568f | Corentin Chary | break;
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99 | 70a4568f | Corentin Chary | case 32: |
100 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_32; |
101 | 70a4568f | Corentin Chary | break;
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102 | 70a4568f | Corentin Chary | } |
103 | 70a4568f | Corentin Chary | } else {
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104 | 70a4568f | Corentin Chary | switch (vs->ds->surface->pf.bits_per_pixel) {
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105 | 70a4568f | Corentin Chary | case 8: |
106 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_generic_8; |
107 | 70a4568f | Corentin Chary | break;
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108 | 70a4568f | Corentin Chary | case 16: |
109 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_generic_16; |
110 | 70a4568f | Corentin Chary | break;
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111 | 70a4568f | Corentin Chary | case 32: |
112 | d1af0e05 | Corentin Chary | vs->hextile.send_tile = send_hextile_tile_generic_32; |
113 | 70a4568f | Corentin Chary | break;
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114 | 70a4568f | Corentin Chary | } |
115 | 70a4568f | Corentin Chary | } |
116 | 70a4568f | Corentin Chary | } |