projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 24236869 FB |
1 | #define CONCAT_I(a, b) a ## b |
| 2 | #define CONCAT(a, b) CONCAT_I(a, b) | |
| 3 | #define pixel_t CONCAT(uint, CONCAT(BPP, _t)) | |
| 4 | ||
| 5 | static void CONCAT(send_hextile_tile_, BPP)(VncState *vs, | |
| 6 | int x, int y, int w, int h, | |
| 7 | pixel_t *last_bg, pixel_t *last_fg, | |
| 8 | int *has_bg, int *has_fg) | |
| 9 | { | |
| 10 | char *row = (vs->ds->data + y * vs->ds->linesize + x * vs->depth); | |
| 11 | pixel_t *irow = (pixel_t *)row; | |
| 12 | int j, i; | |
| 13 | pixel_t bg = 0; | |
| 14 | pixel_t fg = 0; | |
| 15 | int n_colors = 0; | |
| 16 | int bg_count = 0; | |
| 17 | int fg_count = 0; | |
| 18 | int flags = 0; | |
| 19 | uint8_t data[(sizeof(pixel_t) + 2) * 16 * 16]; | |
| 20 | int n_data = 0; | |
| 21 | int n_subtiles = 0; | |
| 22 | ||
| 23 | for (j = 0; j < h; j++) { | |
| 24 | for (i = 0; i < w; i++) { | |
| 25 | switch (n_colors) { | |
| 26 | case 0: | |
| 27 | bg = irow[i]; | |
| 28 | n_colors = 1; | |
| 29 | break; | |
| 30 | case 1: | |
| 31 | if (irow[i] != bg) { | |
| 32 | fg = irow[i]; | |
| 33 | n_colors = 2; | |
| 34 | } | |
| 35 | break; | |
| 36 | case 2: | |
| 37 | if (irow[i] != bg && irow[i] != fg) { | |
| 38 | n_colors = 3; | |
| 39 | } else { | |
| 40 | if (irow[i] == bg) | |
| 41 | bg_count++; | |
| 42 | else if (irow[i] == fg) | |
| 43 | fg_count++; | |
| 44 | } | |
| 45 | break; | |
| 46 | default: | |
| 47 | break; | |
| 48 | } | |
| 49 | } | |
| 50 | if (n_colors > 2) | |
| 51 | break; | |
| 52 | irow += vs->ds->linesize / sizeof(pixel_t); | |
| 53 | } | |
| 54 | ||
| 55 | if (n_colors > 1 && fg_count > bg_count) { | |
| 56 | pixel_t tmp = fg; | |
| 57 | fg = bg; | |
| 58 | bg = tmp; | |
| 59 | } | |
| 60 | ||
| 61 | if (!*has_bg || *last_bg != bg) { | |
| 62 | flags |= 0x02; | |
| 63 | *has_bg = 1; | |
| 64 | *last_bg = bg; | |
| 65 | } | |
| 66 | ||
| 67 | if (!*has_fg || *last_fg != fg) { | |
| 68 | flags |= 0x04; | |
| 69 | *has_fg = 1; | |
| 70 | *last_fg = fg; | |
| 71 | } | |
| 72 | ||
| 73 | switch (n_colors) { | |
| 74 | case 1: | |
| 75 | n_data = 0; | |
| 76 | break; | |
| 77 | case 2: | |
| 78 | flags |= 0x08; | |
| 79 | ||
| 80 | irow = (pixel_t *)row; | |
| 81 | ||
| 82 | for (j = 0; j < h; j++) { | |
| 83 | int min_x = -1; | |
| 84 | for (i = 0; i < w; i++) { | |
| 85 | if (irow[i] == fg) { | |
| 86 | if (min_x == -1) | |
| 87 | min_x = i; | |
| 88 | } else if (min_x != -1) { | |
| 89 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); | |
| 90 | n_data += 2; | |
| 91 | n_subtiles++; | |
| 92 | min_x = -1; | |
| 93 | } | |
| 94 | } | |
| 95 | if (min_x != -1) { | |
| 96 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); | |
| 97 | n_data += 2; | |
| 98 | n_subtiles++; | |
| 99 | } | |
| 100 | irow += vs->ds->linesize / sizeof(pixel_t); | |
| 101 | } | |
| 102 | break; | |
| 103 | case 3: | |
| 104 | flags |= 0x18; | |
| 105 | ||
| 106 | irow = (pixel_t *)row; | |
| 107 | ||
| 108 | if (!*has_bg || *last_bg != bg) | |
| 109 | flags |= 0x02; | |
| 110 | ||
| 111 | for (j = 0; j < h; j++) { | |
| 112 | int has_color = 0; | |
| 113 | int min_x = -1; | |
| 114 | pixel_t color; | |
| 115 | ||
| 116 | for (i = 0; i < w; i++) { | |
| 117 | if (!has_color) { | |
| 118 | if (irow[i] == bg) | |
| 119 | continue; | |
| 120 | color = irow[i]; | |
| 121 | min_x = i; | |
| 122 | has_color = 1; | |
| 123 | } else if (irow[i] != color) { | |
| 124 | has_color = 0; | |
| 125 | ||
| 126 | memcpy(data + n_data, &color, sizeof(color)); | |
| 127 | hextile_enc_cord(data + n_data + sizeof(pixel_t), min_x, j, i - min_x, 1); | |
| 128 | n_data += 2 + sizeof(pixel_t); | |
| 129 | n_subtiles++; | |
| 130 | ||
| 131 | min_x = -1; | |
| 132 | if (irow[i] != bg) { | |
| 133 | color = irow[i]; | |
| 134 | min_x = i; | |
| 135 | has_color = 1; | |
| 136 | } | |
| 137 | } | |
| 138 | } | |
| 139 | if (has_color) { | |
| 140 | memcpy(data + n_data, &color, sizeof(color)); | |
| 141 | hextile_enc_cord(data + n_data + sizeof(pixel_t), min_x, j, i - min_x, 1); | |
| 142 | n_data += 2 + sizeof(pixel_t); | |
| 143 | n_subtiles++; | |
| 144 | } | |
| 145 | irow += vs->ds->linesize / sizeof(pixel_t); | |
| 146 | } | |
| 147 | ||
| 148 | /* A SubrectsColoured subtile invalidates the foreground color */ | |
| 149 | *has_fg = 0; | |
| 150 | if (n_data > (w * h * sizeof(pixel_t))) { | |
| 151 | n_colors = 4; | |
| 152 | flags = 0x01; | |
| 153 | *has_bg = 0; | |
| 154 | ||
| 155 | /* we really don't have to invalidate either the bg or fg | |
| 156 | but we've lost the old values. oh well. */ | |
| 157 | } | |
| 158 | default: | |
| 159 | break; | |
| 160 | } | |
| 161 | ||
| 162 | if (n_colors > 3) { | |
| 163 | flags = 0x01; | |
| 164 | *has_fg = 0; | |
| 165 | *has_bg = 0; | |
| 166 | n_colors = 4; | |
| 167 | } | |
| 168 | ||
| 169 | vnc_write_u8(vs, flags); | |
| 170 | if (n_colors < 4) { | |
| 171 | if (flags & 0x02) | |
| 172 | vnc_write(vs, last_bg, sizeof(pixel_t)); | |
| 173 | if (flags & 0x04) | |
| 174 | vnc_write(vs, last_fg, sizeof(pixel_t)); | |
| 175 | if (n_subtiles) { | |
| 176 | vnc_write_u8(vs, n_subtiles); | |
| 177 | vnc_write(vs, data, n_data); | |
| 178 | } | |
| 179 | } else { | |
| 180 | for (j = 0; j < h; j++) { | |
| 181 | vnc_write(vs, row, w * vs->depth); | |
| 182 | row += vs->ds->linesize; | |
| 183 | } | |
| 184 | } | |
| 185 | } | |
| 186 | ||
| 187 | #undef pixel_t | |
| 188 | #undef CONCAT_I | |
| 189 | #undef CONCAT |