Corentin Chary | 70a4568 | 2010-05-03 14:31:34 +0200 | [diff] [blame] | 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 "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 "vnchextile.h" |
| 37 | #undef BPP |
| 38 | |
| 39 | #define BPP 16 |
| 40 | #include "vnchextile.h" |
| 41 | #undef BPP |
| 42 | |
| 43 | #define BPP 32 |
| 44 | #include "vnchextile.h" |
| 45 | #undef BPP |
| 46 | |
| 47 | #define GENERIC |
| 48 | #define BPP 8 |
| 49 | #include "vnchextile.h" |
| 50 | #undef BPP |
| 51 | #undef GENERIC |
| 52 | |
| 53 | #define GENERIC |
| 54 | #define BPP 16 |
| 55 | #include "vnchextile.h" |
| 56 | #undef BPP |
| 57 | #undef GENERIC |
| 58 | |
| 59 | #define GENERIC |
| 60 | #define BPP 32 |
| 61 | #include "vnchextile.h" |
| 62 | #undef BPP |
| 63 | #undef GENERIC |
| 64 | |
| 65 | void 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 | |
| 73 | last_fg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); |
| 74 | last_bg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel); |
| 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->send_hextile_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 | } |
| 83 | free(last_fg); |
| 84 | free(last_bg); |
| 85 | |
| 86 | } |
| 87 | |
| 88 | void vnc_hextile_set_pixel_conversion(VncState *vs, int generic) |
| 89 | { |
| 90 | if (!generic) { |
| 91 | switch (vs->ds->surface->pf.bits_per_pixel) { |
| 92 | case 8: |
| 93 | vs->send_hextile_tile = send_hextile_tile_8; |
| 94 | break; |
| 95 | case 16: |
| 96 | vs->send_hextile_tile = send_hextile_tile_16; |
| 97 | break; |
| 98 | case 32: |
| 99 | vs->send_hextile_tile = send_hextile_tile_32; |
| 100 | break; |
| 101 | } |
| 102 | } else { |
| 103 | switch (vs->ds->surface->pf.bits_per_pixel) { |
| 104 | case 8: |
| 105 | vs->send_hextile_tile = send_hextile_tile_generic_8; |
| 106 | break; |
| 107 | case 16: |
| 108 | vs->send_hextile_tile = send_hextile_tile_generic_16; |
| 109 | break; |
| 110 | case 32: |
| 111 | vs->send_hextile_tile = send_hextile_tile_generic_32; |
| 112 | break; |
| 113 | } |
| 114 | } |
| 115 | } |