2 * Copyright 2006-2009 Red Hat, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 /* Original Author: Adam Jackson <ajax@nwnk.net> */
23 /* Heavily modified by: Leif Middelschulte <leif.middelschulte@gmail.com> */
32 * - see other TODO's within this file.
35 #define ECORE_X_RANDR_EDID_VERSION_10 ((1 << 8) | 0)
36 #define ECORE_X_RANDR_EDID_VERSION_11 ((1 << 8) | 1)
37 #define ECORE_X_RANDR_EDID_VERSION_12 ((1 << 8) | 2)
38 #define ECORE_X_RANDR_EDID_VERSION_13 ((1 << 8) | 3)
39 #define ECORE_X_RANDR_EDID_VERSION_14 ((1 << 8) | 4)
41 #define _ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER 0x08
42 #define _ECORE_X_RANDR_EDID_OFFSET_TYPE 0x14
43 #define _ECORE_X_RANDR_EDID_OFFSET_VERSION_MAJOR 0x12
44 #define _ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR 0x13
45 #define _ECORE_X_RANDR_EDID_OFFSET_DPMS 0x18
46 #define _ECORE_X_RANDR_EDID_OFFSET_COLORSPACE 0x18
47 #define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK 0x36
48 #define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE 3
49 #define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT 5
50 #define _ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO_PREFERRED 15
51 #define _ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO 14
53 #define _ECORE_X_RANDR_EDID_MASK_DIGITAL 0x80
54 #define _ECORE_X_RANDR_EDID_MASK_DIGITAL_INTERFACE 0x0f
55 #define _ECORE_X_RANDR_EDID_MASK_DIGITAL_TMDS_DFP_10 0x01
56 #define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_ANALOGOUS 0x18
57 #define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_444 0x10
58 #define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_422 0x08
59 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_PREFERRED 0xe0
60 #define _ECORE_X_RANDR_EDID_MASK_DPMS 0xE0
61 #define _ECORE_X_RANDR_EDID_MASK_DPMS_STANDBY 0x80
62 #define _ECORE_X_RANDR_EDID_MASK_DPMS_SUSPEND 0x40
63 #define _ECORE_X_RANDR_EDID_MASK_DPMS_OFF 0x20
64 #define _ECORE_X_RANDR_EDID_MASK_INTERFACE_TYPE 0x0f
65 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_4_3 0x80
66 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_9 0x40
67 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_10 0x20
68 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_5_4 0x10
69 #define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_15_9 0x08
71 #define _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX 13
73 typedef enum _Ecore_X_Randr_Edid_Aspect_Ratio_Preferred {
74 ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_4_3 = 0x00,
75 ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_9 = 0x01,
76 ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_10 = 0x02,
77 ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_5_4 = 0x03,
78 ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_15_9 = 0x04
79 } Ecore_X_Randr_Edid_Aspect_Ratio_Preferred;
81 /* Some convenience loops */
82 #define _ECORE_X_RANDR_EDID_FOR_EACH_EXTENSION_BLOCK(edid, edid_length, extension_block_iter) \
83 for (extension_block_iter = edid; extension_block_iter < (edid + edid_length); extension_block_iter += 128)
85 #define _ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter) \
86 _ECORE_X_RANDR_EDID_FOR_EACH_EXTENSION_BLOCK(edid, edid_length, cea_block_iter) \
87 if (cea_block_iter[0] == 0x02)
89 /* The following macro is to be used with caution as it inherits another loop.
90 * Therefore using a 'break;' statement will lead to continuation in the
91 * inherent 'Extension block'-loop.
93 #define _ECORE_X_RANDR_EDID_FOR_EACH_CEA_DETAILED_BLOCK(edid, edid_length, cea_block_iter, detailed_block_iter) \
94 _ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter) \
95 for (detailed_block_iter = cea_block_iter + cea_block_iter[2]; detailed_block_iter + 18 < cea_block_iter + 127; detailed_block_iter += 18) \
96 if (detailed_block_iter[0])
98 #define _ECORE_X_RANDR_EDID_FOR_EACH_DESCRIPTOR_BLOCK(edid, block) \
99 for (block = edid + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK; block <= (edid + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK + (3 * 18)); block += 18)
101 #define _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block) \
102 _ECORE_X_RANDR_EDID_FOR_EACH_DESCRIPTOR_BLOCK(edid, block) \
103 if ((block[0] == 0) && (block[1] == 0))
106 ecore_x_randr_edid_has_valid_header(unsigned char *edid,
107 unsigned long edid_length)
109 const unsigned char header[] =
110 { 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
111 if (!edid) return EINA_FALSE;
112 if (edid_length < 8) return EINA_FALSE;
113 if (!memcmp(edid, header, 8)) return EINA_TRUE;
118 ecore_x_randr_edid_version_get(unsigned char *edid,
119 unsigned long edid_length)
121 if ((edid_length > _ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR) &&
122 (ecore_x_randr_edid_has_valid_header(edid, edid_length)))
123 return (edid[_ECORE_X_RANDR_EDID_OFFSET_VERSION_MAJOR] << 8) |
124 edid[_ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR];
125 return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
129 ecore_x_randr_edid_manufacturer_model_get(unsigned char *edid,
130 unsigned long edid_length)
132 if ((edid_length > 0x0b) &&
133 (ecore_x_randr_edid_has_valid_header(edid, edid_length)))
134 return (int)(edid[0x0a] + (edid[0x0b] << 8));
135 return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
139 ecore_x_randr_edid_manufacturer_serial_number_get(unsigned char *edid,
140 unsigned long edid_length)
142 if ((edid_length > 0x0f) &&
143 (ecore_x_randr_edid_has_valid_header(edid, edid_length)))
144 return (int)(edid[0x0c] + (edid[0x0d] << 8) +
145 (edid[0x0e] << 16) + (edid[0x0f] << 24));
146 return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
150 ecore_x_randr_edid_manufacturer_name_get(unsigned char *edid,
151 unsigned long edid_length)
153 if ((edid_length > (_ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER + 1)) &&
154 (ecore_x_randr_edid_has_valid_header(edid, edid_length)))
159 x = (edid + _ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER);
160 name = malloc(sizeof(char) * 4);
161 if (!name) return NULL;
162 name[0] = ((x[0] & 0x7c) >> 2) + '@';
163 name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xe0) >> 5) + '@';
164 name[2] = (x[1] & 0x1f) + '@';
165 name[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] = 0;
172 ecore_x_randr_edid_display_name_get(unsigned char *edid,
173 unsigned long edid_length)
175 unsigned char *block = NULL;
176 int version = ecore_x_randr_edid_version_get(edid, edid_length);
178 if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
179 _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
181 if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfc)
184 const char *edid_name;
186 edid_name = (const char *)block + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
187 name = malloc(sizeof(char) * _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
188 if (!name) return NULL;
189 strncpy(name, edid_name, (_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX - 1));
190 name[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
191 for (p = name; *p; p++)
193 if ((*p < ' ') || (*p > '~')) *p = 0;
201 EAPI Ecore_X_Randr_Edid_Aspect_Ratio
202 ecore_x_randr_edid_display_aspect_ratio_preferred_get(unsigned char *edid,
203 unsigned long edid_length)
205 unsigned char *block = NULL;
206 int version = ecore_x_randr_edid_version_get(edid, edid_length);
208 if (version < ECORE_X_RANDR_EDID_VERSION_13) return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
209 _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
211 if ((block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfd) &&
214 Ecore_X_Randr_Edid_Aspect_Ratio_Preferred preferred_ratio =
215 (Ecore_X_Randr_Edid_Aspect_Ratio_Preferred)
216 ((block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO_PREFERRED] &
217 _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_PREFERRED) >> 5);
218 switch (preferred_ratio)
220 case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_4_3:
221 return ECORE_X_RANDR_EDID_ASPECT_RATIO_4_3;
223 case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_9:
224 return ECORE_X_RANDR_EDID_ASPECT_RATIO_16_9;
226 case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_10:
227 return ECORE_X_RANDR_EDID_ASPECT_RATIO_16_10;
229 case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_5_4:
230 return ECORE_X_RANDR_EDID_ASPECT_RATIO_5_4;
232 case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_15_9:
233 return ECORE_X_RANDR_EDID_ASPECT_RATIO_15_9;
236 return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
240 return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
243 EAPI Ecore_X_Randr_Edid_Aspect_Ratio
244 ecore_x_randr_edid_display_aspect_ratios_get(unsigned char *edid,
245 unsigned long edid_length)
247 Ecore_X_Randr_Edid_Aspect_Ratio ret = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
248 unsigned char *block = NULL;
249 int version = ecore_x_randr_edid_version_get(edid, edid_length);
251 if (version < ECORE_X_RANDR_EDID_VERSION_13) return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
252 _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
254 if ((block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfd) &&
257 if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_4_3)
258 ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_4_3;
259 if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_9)
260 ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_16_9;
261 if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_10)
262 ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_16_10;
263 if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_5_4)
264 ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_5_4;
265 if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_15_9)
266 ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_15_9;
273 ecore_x_randr_edid_display_ascii_get(unsigned char *edid,
274 unsigned long edid_length)
276 unsigned char *block = NULL;
277 int version = ecore_x_randr_edid_version_get(edid, edid_length);
279 if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
280 _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
282 if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfe)
285 const char *edid_ascii = (const char *)block +
286 _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
288 * TODO: Two of these in a row, in the third and fourth slots,
289 * seems to be specified by SPWG: http://www.spwg.org/
291 ascii = malloc(sizeof(char) * _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
292 if (!ascii) return NULL;
293 strncpy(ascii, edid_ascii, (_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX - 1));
294 ascii[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
295 for (p = ascii; *p; p++)
297 if ((*p < ' ') || (*p > '~')) *p = 0;
306 ecore_x_randr_edid_display_serial_get(unsigned char *edid,
307 unsigned long edid_length)
309 unsigned char *block = NULL;
310 int version = ecore_x_randr_edid_version_get(edid, edid_length);
312 if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
313 _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
315 if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xff)
318 const char *edid_serial = (const char *)block +
319 _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
321 * TODO: Two of these in a row, in the third and fourth slots,
322 * seems to be specified by SPWG: http://www.spwg.org/
324 serial = malloc(sizeof(char) * _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
325 if (!serial) return NULL;
326 strncpy(serial, edid_serial, (_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX - 1));
327 serial[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
328 for (p = serial; *p; p++)
330 if ((*p < ' ') || (*p > '~')) *p = 0;
339 ecore_x_randr_edid_info_has_valid_checksum(unsigned char *edid,
340 unsigned long edid_length)
342 unsigned char *cea_block_iter = NULL;
345 int version = ecore_x_randr_edid_version_get(edid, edid_length);
347 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
348 if (edid_length < 128) return EINA_FALSE;
350 /* Check the EDID block itself */
351 for (i = 0; i < 128; i++)
353 if (sum) return EINA_FALSE;
355 /* Check the cea extension blocks */
356 _ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter)
358 for (i = 0, sum = 0; i < 128; i++)
359 sum += cea_block_iter[i];
361 if (sum) return EINA_FALSE;
366 ecore_x_randr_edid_dpms_available_get(unsigned char *edid,
367 unsigned long edid_length)
369 int version = ecore_x_randr_edid_version_get(edid, edid_length);
371 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
372 return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
373 _ECORE_X_RANDR_EDID_MASK_DPMS);
377 ecore_x_randr_edid_dpms_standby_available_get(unsigned char *edid,
378 unsigned long edid_length)
380 int version = ecore_x_randr_edid_version_get(edid, edid_length);
382 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
383 if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
384 return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
385 _ECORE_X_RANDR_EDID_MASK_DPMS_STANDBY);
390 ecore_x_randr_edid_dpms_suspend_available_get(unsigned char *edid,
391 unsigned long edid_length)
393 int version = ecore_x_randr_edid_version_get(edid, edid_length);
395 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
396 if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
397 return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
398 _ECORE_X_RANDR_EDID_MASK_DPMS_SUSPEND);
403 ecore_x_randr_edid_dpms_off_available_get(unsigned char *edid,
404 unsigned long edid_length)
406 int version = ecore_x_randr_edid_version_get(edid, edid_length);
408 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
409 if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
410 return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
411 _ECORE_X_RANDR_EDID_MASK_DPMS_OFF);
416 ecore_x_randr_edid_display_type_digital_get(unsigned char *edid,
417 unsigned long edid_length)
419 int version = ecore_x_randr_edid_version_get(edid, edid_length);
421 if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
422 return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_TYPE] &
423 _ECORE_X_RANDR_EDID_MASK_DIGITAL);
426 EAPI Ecore_X_Randr_Edid_Display_Colorscheme
427 ecore_x_randr_edid_display_colorscheme_get(unsigned char *edid,
428 unsigned long edid_length)
430 Ecore_X_Randr_Edid_Display_Colorscheme colorscheme = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
431 int version = ecore_x_randr_edid_version_get(edid, edid_length);
433 if (version < ECORE_X_RANDR_EDID_VERSION_13) return colorscheme;
434 if (ecore_x_randr_edid_display_type_digital_get(edid, edid_length))
436 colorscheme = ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_4_4_4;
437 if (edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] &
438 _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_444)
439 colorscheme |= ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_YCRCB_4_4_4;
440 if (edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] &
441 _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_422)
442 colorscheme |= ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_YCRCB_4_2_2;
445 colorscheme = edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] & _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_ANALOGOUS;
449 EAPI Ecore_X_Randr_Edid_Display_Interface_Type
450 ecore_x_randr_edid_display_interface_type_get(unsigned char *edid,
451 unsigned long edid_length)
453 Ecore_X_Randr_Edid_Display_Interface_Type type = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
454 int version = ecore_x_randr_edid_version_get(edid, edid_length);
456 if (version < ECORE_X_RANDR_EDID_VERSION_13) return type;
457 type = edid[_ECORE_X_RANDR_EDID_OFFSET_TYPE] &
458 _ECORE_X_RANDR_EDID_MASK_INTERFACE_TYPE;
459 if (type > ECORE_X_RANDR_EDID_DISPLAY_INTERFACE_DISPLAY_PORT)
460 type = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;