bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 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)) |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 4 | #ifdef GENERIC |
| 5 | #define NAME generic |
| 6 | #else |
| 7 | #define NAME BPP |
| 8 | #endif |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 9 | |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 10 | static void CONCAT(send_hextile_tile_, NAME)(VncState *vs, |
| 11 | int x, int y, int w, int h, |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 12 | uint32_t *last_bg32, |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 13 | uint32_t *last_fg32, |
| 14 | int *has_bg, int *has_fg) |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 15 | { |
| 16 | char *row = (vs->ds->data + y * vs->ds->linesize + x * vs->depth); |
| 17 | pixel_t *irow = (pixel_t *)row; |
| 18 | int j, i; |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 19 | pixel_t *last_bg = (pixel_t *)last_bg32; |
| 20 | pixel_t *last_fg = (pixel_t *)last_fg32; |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 21 | pixel_t bg = 0; |
| 22 | pixel_t fg = 0; |
| 23 | int n_colors = 0; |
| 24 | int bg_count = 0; |
| 25 | int fg_count = 0; |
| 26 | int flags = 0; |
| 27 | uint8_t data[(sizeof(pixel_t) + 2) * 16 * 16]; |
| 28 | int n_data = 0; |
| 29 | int n_subtiles = 0; |
| 30 | |
| 31 | for (j = 0; j < h; j++) { |
| 32 | for (i = 0; i < w; i++) { |
| 33 | switch (n_colors) { |
| 34 | case 0: |
| 35 | bg = irow[i]; |
| 36 | n_colors = 1; |
| 37 | break; |
| 38 | case 1: |
| 39 | if (irow[i] != bg) { |
| 40 | fg = irow[i]; |
| 41 | n_colors = 2; |
| 42 | } |
| 43 | break; |
| 44 | case 2: |
| 45 | if (irow[i] != bg && irow[i] != fg) { |
| 46 | n_colors = 3; |
| 47 | } else { |
| 48 | if (irow[i] == bg) |
| 49 | bg_count++; |
| 50 | else if (irow[i] == fg) |
| 51 | fg_count++; |
| 52 | } |
| 53 | break; |
| 54 | default: |
| 55 | break; |
| 56 | } |
| 57 | } |
| 58 | if (n_colors > 2) |
| 59 | break; |
| 60 | irow += vs->ds->linesize / sizeof(pixel_t); |
| 61 | } |
| 62 | |
| 63 | if (n_colors > 1 && fg_count > bg_count) { |
| 64 | pixel_t tmp = fg; |
| 65 | fg = bg; |
| 66 | bg = tmp; |
| 67 | } |
| 68 | |
| 69 | if (!*has_bg || *last_bg != bg) { |
| 70 | flags |= 0x02; |
| 71 | *has_bg = 1; |
| 72 | *last_bg = bg; |
| 73 | } |
| 74 | |
| 75 | if (!*has_fg || *last_fg != fg) { |
| 76 | flags |= 0x04; |
| 77 | *has_fg = 1; |
| 78 | *last_fg = fg; |
| 79 | } |
| 80 | |
| 81 | switch (n_colors) { |
| 82 | case 1: |
| 83 | n_data = 0; |
| 84 | break; |
| 85 | case 2: |
| 86 | flags |= 0x08; |
| 87 | |
| 88 | irow = (pixel_t *)row; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 89 | |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 90 | for (j = 0; j < h; j++) { |
| 91 | int min_x = -1; |
| 92 | for (i = 0; i < w; i++) { |
| 93 | if (irow[i] == fg) { |
| 94 | if (min_x == -1) |
| 95 | min_x = i; |
| 96 | } else if (min_x != -1) { |
| 97 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); |
| 98 | n_data += 2; |
| 99 | n_subtiles++; |
| 100 | min_x = -1; |
| 101 | } |
| 102 | } |
| 103 | if (min_x != -1) { |
| 104 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); |
| 105 | n_data += 2; |
| 106 | n_subtiles++; |
| 107 | } |
| 108 | irow += vs->ds->linesize / sizeof(pixel_t); |
| 109 | } |
| 110 | break; |
| 111 | case 3: |
| 112 | flags |= 0x18; |
| 113 | |
| 114 | irow = (pixel_t *)row; |
| 115 | |
| 116 | if (!*has_bg || *last_bg != bg) |
| 117 | flags |= 0x02; |
| 118 | |
| 119 | for (j = 0; j < h; j++) { |
| 120 | int has_color = 0; |
| 121 | int min_x = -1; |
ths | 92190c6 | 2006-12-21 16:50:09 +0000 | [diff] [blame] | 122 | pixel_t color = 0; /* shut up gcc */ |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 123 | |
| 124 | for (i = 0; i < w; i++) { |
| 125 | if (!has_color) { |
| 126 | if (irow[i] == bg) |
| 127 | continue; |
| 128 | color = irow[i]; |
| 129 | min_x = i; |
| 130 | has_color = 1; |
| 131 | } else if (irow[i] != color) { |
| 132 | has_color = 0; |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 133 | #ifdef GENERIC |
| 134 | vnc_convert_pixel(vs, data + n_data, color); |
| 135 | n_data += vs->pix_bpp; |
| 136 | #else |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 137 | memcpy(data + n_data, &color, sizeof(color)); |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 138 | n_data += sizeof(pixel_t); |
| 139 | #endif |
| 140 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); |
| 141 | n_data += 2; |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 142 | n_subtiles++; |
| 143 | |
| 144 | min_x = -1; |
| 145 | if (irow[i] != bg) { |
| 146 | color = irow[i]; |
| 147 | min_x = i; |
| 148 | has_color = 1; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | if (has_color) { |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 153 | #ifdef GENERIC |
| 154 | vnc_convert_pixel(vs, data + n_data, color); |
| 155 | n_data += vs->pix_bpp; |
| 156 | #else |
| 157 | memcpy(data + n_data, &color, sizeof(color)); |
| 158 | n_data += sizeof(pixel_t); |
| 159 | #endif |
| 160 | hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1); |
| 161 | n_data += 2; |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 162 | n_subtiles++; |
| 163 | } |
| 164 | irow += vs->ds->linesize / sizeof(pixel_t); |
| 165 | } |
| 166 | |
| 167 | /* A SubrectsColoured subtile invalidates the foreground color */ |
| 168 | *has_fg = 0; |
| 169 | if (n_data > (w * h * sizeof(pixel_t))) { |
| 170 | n_colors = 4; |
| 171 | flags = 0x01; |
| 172 | *has_bg = 0; |
| 173 | |
| 174 | /* we really don't have to invalidate either the bg or fg |
| 175 | but we've lost the old values. oh well. */ |
| 176 | } |
| 177 | default: |
| 178 | break; |
| 179 | } |
| 180 | |
| 181 | if (n_colors > 3) { |
| 182 | flags = 0x01; |
| 183 | *has_fg = 0; |
| 184 | *has_bg = 0; |
| 185 | n_colors = 4; |
| 186 | } |
| 187 | |
| 188 | vnc_write_u8(vs, flags); |
| 189 | if (n_colors < 4) { |
| 190 | if (flags & 0x02) |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 191 | vs->write_pixels(vs, last_bg, sizeof(pixel_t)); |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 192 | if (flags & 0x04) |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 193 | vs->write_pixels(vs, last_fg, sizeof(pixel_t)); |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 194 | if (n_subtiles) { |
| 195 | vnc_write_u8(vs, n_subtiles); |
| 196 | vnc_write(vs, data, n_data); |
| 197 | } |
| 198 | } else { |
| 199 | for (j = 0; j < h; j++) { |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 200 | vs->write_pixels(vs, row, w * vs->depth); |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 201 | row += vs->ds->linesize; |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | |
bellard | 3512779 | 2006-05-14 18:11:49 +0000 | [diff] [blame] | 206 | #undef NAME |
bellard | 2423686 | 2006-04-30 21:28:36 +0000 | [diff] [blame] | 207 | #undef pixel_t |
| 208 | #undef CONCAT_I |
| 209 | #undef CONCAT |