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efl/src/lib/ecore_x/xlib/ecore_x_randr_12_edid.c

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/*
* Copyright 2006-2009 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* Original Author: Adam Jackson <ajax@nwnk.net> */
/* Heavily modified by: Leif Middelschulte <leif.middelschulte@gmail.com> */
#include "Ecore_X.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
/* TODO:
* - see other TODO's within this file.
*/
#define ECORE_X_RANDR_EDID_VERSION_10 ((1 << 8) | 0)
#define ECORE_X_RANDR_EDID_VERSION_11 ((1 << 8) | 1)
#define ECORE_X_RANDR_EDID_VERSION_12 ((1 << 8) | 2)
#define ECORE_X_RANDR_EDID_VERSION_13 ((1 << 8) | 3)
#define ECORE_X_RANDR_EDID_VERSION_14 ((1 << 8) | 4)
#define _ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER 0x08
#define _ECORE_X_RANDR_EDID_OFFSET_TYPE 0x14
#define _ECORE_X_RANDR_EDID_OFFSET_VERSION_MAJOR 0x12
#define _ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR 0x13
#define _ECORE_X_RANDR_EDID_OFFSET_DPMS 0x18
#define _ECORE_X_RANDR_EDID_OFFSET_COLORSPACE 0x18
#define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK 0x36
#define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE 3
#define _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT 5
#define _ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO_PREFERRED 15
#define _ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO 14
#define _ECORE_X_RANDR_EDID_MASK_DIGITAL 0x80
#define _ECORE_X_RANDR_EDID_MASK_DIGITAL_INTERFACE 0x0f
#define _ECORE_X_RANDR_EDID_MASK_DIGITAL_TMDS_DFP_10 0x01
#define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_ANALOGOUS 0x18
#define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_444 0x10
#define _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_422 0x08
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_PREFERRED 0xe0
#define _ECORE_X_RANDR_EDID_MASK_DPMS 0xE0
#define _ECORE_X_RANDR_EDID_MASK_DPMS_STANDBY 0x80
#define _ECORE_X_RANDR_EDID_MASK_DPMS_SUSPEND 0x40
#define _ECORE_X_RANDR_EDID_MASK_DPMS_OFF 0x20
#define _ECORE_X_RANDR_EDID_MASK_INTERFACE_TYPE 0x0f
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_4_3 0x80
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_9 0x40
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_10 0x20
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_5_4 0x10
#define _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_15_9 0x08
#define _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX 13
typedef enum _Ecore_X_Randr_Edid_Aspect_Ratio_Preferred {
ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_4_3 = 0x00,
ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_9 = 0x01,
ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_10 = 0x02,
ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_5_4 = 0x03,
ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_15_9 = 0x04
} Ecore_X_Randr_Edid_Aspect_Ratio_Preferred;
/* Some convenience loops */
#define _ECORE_X_RANDR_EDID_FOR_EACH_EXTENSION_BLOCK(edid, edid_length, extension_block_iter) \
for (extension_block_iter = edid; extension_block_iter < (edid + edid_length); extension_block_iter += 128)
#define _ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter) \
_ECORE_X_RANDR_EDID_FOR_EACH_EXTENSION_BLOCK(edid, edid_length, cea_block_iter) \
if (cea_block_iter[0] == 0x02)
/* The following macro is to be used with caution as it inherits another loop.
* Therefore using a 'break;' statement will lead to continuation in the
* inherent 'Extension block'-loop.
*/
#define _ECORE_X_RANDR_EDID_FOR_EACH_CEA_DETAILED_BLOCK(edid, edid_length, cea_block_iter, detailed_block_iter) \
_ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter) \
for (detailed_block_iter = cea_block_iter + cea_block_iter[2]; detailed_block_iter + 18 < cea_block_iter + 127; detailed_block_iter += 18) \
if (detailed_block_iter[0])
#define _ECORE_X_RANDR_EDID_FOR_EACH_DESCRIPTOR_BLOCK(edid, block) \
for (block = edid + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK; block <= (edid + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK + (3 * 18)); block += 18)
#define _ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block) \
_ECORE_X_RANDR_EDID_FOR_EACH_DESCRIPTOR_BLOCK(edid, block) \
if ((block[0] == 0) && (block[1] == 0))
EAPI Eina_Bool
ecore_x_randr_edid_has_valid_header(unsigned char *edid,
unsigned long edid_length)
{
const unsigned char header[] =
{ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
if (!edid) return EINA_FALSE;
if (edid_length < 8) return EINA_FALSE;
if (!memcmp(edid, header, 8)) return EINA_TRUE;
return EINA_FALSE;
}
EAPI int
ecore_x_randr_edid_version_get(unsigned char *edid,
unsigned long edid_length)
{
if ((edid_length > _ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR) &&
(ecore_x_randr_edid_has_valid_header(edid, edid_length)))
return (edid[_ECORE_X_RANDR_EDID_OFFSET_VERSION_MAJOR] << 8) |
edid[_ECORE_X_RANDR_EDID_OFFSET_VERSION_MINOR];
return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
}
EAPI int
ecore_x_randr_edid_manufacturer_model_get(unsigned char *edid,
unsigned long edid_length)
{
if ((edid_length > 0x0b) &&
(ecore_x_randr_edid_has_valid_header(edid, edid_length)))
return (int)(edid[0x0a] + (edid[0x0b] << 8));
return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
}
EAPI int
ecore_x_randr_edid_manufacturer_serial_number_get(unsigned char *edid,
unsigned long edid_length)
{
if ((edid_length > 0x0f) &&
(ecore_x_randr_edid_has_valid_header(edid, edid_length)))
return (int)(edid[0x0c] + (edid[0x0d] << 8) +
(edid[0x0e] << 16) + (edid[0x0f] << 24));
return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
}
EAPI char *
ecore_x_randr_edid_manufacturer_name_get(unsigned char *edid,
unsigned long edid_length)
{
if ((edid_length > (_ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER + 1)) &&
(ecore_x_randr_edid_has_valid_header(edid, edid_length)))
{
unsigned char *x;
char *name;
x = (edid + _ECORE_X_RANDR_EDID_OFFSET_MANUFACTURER);
name = malloc(sizeof(char) * 4);
if (!name) return NULL;
name[0] = ((x[0] & 0x7c) >> 2) + '@';
name[1] = ((x[0] & 0x03) << 3) + ((x[1] & 0xe0) >> 5) + '@';
name[2] = (x[1] & 0x1f) + '@';
name[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] = 0;
return name;
}
return NULL;
}
EAPI char *
ecore_x_randr_edid_display_name_get(unsigned char *edid,
unsigned long edid_length)
{
unsigned char *block = NULL;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
_ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
{
if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfc)
{
char *name, *p;
const char *edid_name;
edid_name = (const char *)block + _ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
name = malloc(_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX + 1);
if (!name) return NULL;
strncpy(name, edid_name, _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
name[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
for (p = name; *p; p++)
{
if ((*p < ' ') || (*p > '~')) *p = 0;
}
return name;
}
}
return NULL;
}
EAPI Ecore_X_Randr_Edid_Aspect_Ratio
ecore_x_randr_edid_display_aspect_ratio_preferred_get(unsigned char *edid,
unsigned long edid_length)
{
unsigned char *block = NULL;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
_ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
{
if ((block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfd) &&
(block[10] == 0x04))
{
Ecore_X_Randr_Edid_Aspect_Ratio_Preferred preferred_ratio =
(Ecore_X_Randr_Edid_Aspect_Ratio_Preferred)
((block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO_PREFERRED] &
_ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_PREFERRED) >> 5);
switch (preferred_ratio)
{
case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_4_3:
return ECORE_X_RANDR_EDID_ASPECT_RATIO_4_3;
case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_9:
return ECORE_X_RANDR_EDID_ASPECT_RATIO_16_9;
case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_16_10:
return ECORE_X_RANDR_EDID_ASPECT_RATIO_16_10;
case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_5_4:
return ECORE_X_RANDR_EDID_ASPECT_RATIO_5_4;
case ECORE_X_RANDR_EDID_ASPECT_RATIO_PREFERRED_15_9:
return ECORE_X_RANDR_EDID_ASPECT_RATIO_15_9;
default:
return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
}
}
}
return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
}
EAPI Ecore_X_Randr_Edid_Aspect_Ratio
ecore_x_randr_edid_display_aspect_ratios_get(unsigned char *edid,
unsigned long edid_length)
{
Ecore_X_Randr_Edid_Aspect_Ratio ret = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
unsigned char *block = NULL;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
_ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
{
if ((block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfd) &&
(block[10] == 0x04))
{
if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_4_3)
ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_4_3;
if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_9)
ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_16_9;
if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_16_10)
ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_16_10;
if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_5_4)
ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_5_4;
if (block[_ECORE_X_RANDR_EDID_OFFSET_ASPECT_RATIO] & _ECORE_X_RANDR_EDID_MASK_ASPECT_RATIO_15_9)
ret |= ECORE_X_RANDR_EDID_ASPECT_RATIO_15_9;
}
}
return ret;
}
EAPI char *
ecore_x_randr_edid_display_ascii_get(unsigned char *edid,
unsigned long edid_length)
{
unsigned char *block = NULL;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
_ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
{
if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xfe)
{
char *ascii, *p;
const char *edid_ascii = (const char *)block +
_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
/*
* TODO: Two of these in a row, in the third and fourth slots,
* seems to be specified by SPWG: http://www.spwg.org/
*/
ascii = malloc(_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX + 1);
if (!ascii) return NULL;
strncpy(ascii, edid_ascii, _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
ascii[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
for (p = ascii; *p; p++)
{
if ((*p < ' ') || (*p > '~')) *p = 0;
}
return ascii;
}
}
return NULL;
}
EAPI char *
ecore_x_randr_edid_display_serial_get(unsigned char *edid,
unsigned long edid_length)
{
unsigned char *block = NULL;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return NULL;
_ECORE_X_RANDR_EDID_FOR_EACH_NON_PIXEL_DESCRIPTOR_BLOCK(edid, block)
{
if (block[_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_TYPE] == 0xff)
{
char *serial, *p;
const char *edid_serial = (const char *)block +
_ECORE_X_RANDR_EDID_OFFSET_DESCRIPTOR_BLOCK_CONTENT;
/*
* TODO: Two of these in a row, in the third and fourth slots,
* seems to be specified by SPWG: http://www.spwg.org/
*/
serial = malloc(_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX + 1);
if (!serial) return NULL;
strncpy(serial, edid_serial, _ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX);
serial[_ECORE_X_RANDR_EDID_DISPLAY_DESCRIPTOR_BLOCK_CONTENT_LENGTH_MAX] = 0;
for (p = serial; *p; p++)
{
if ((*p < ' ') || (*p > '~')) *p = 0;
}
return serial;
}
}
return NULL;
}
EAPI Eina_Bool
ecore_x_randr_edid_info_has_valid_checksum(unsigned char *edid,
unsigned long edid_length)
{
unsigned char *cea_block_iter = NULL;
char sum = 0;
int i;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
if (edid_length < 128) return EINA_FALSE;
/* Check the EDID block itself */
for (i = 0; i < 128; i++)
sum += edid[i];
if (sum) return EINA_FALSE;
/* Check the cea extension blocks */
_ECORE_X_RANDR_EDID_FOR_EACH_CEA_BLOCK(edid, edid_length, cea_block_iter)
{
for (i = 0, sum = 0; i < 128; i++)
sum += cea_block_iter[i];
}
if (sum) return EINA_FALSE;
return EINA_TRUE;
}
EAPI Eina_Bool
ecore_x_randr_edid_dpms_available_get(unsigned char *edid,
unsigned long edid_length)
{
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
_ECORE_X_RANDR_EDID_MASK_DPMS);
}
EAPI Eina_Bool
ecore_x_randr_edid_dpms_standby_available_get(unsigned char *edid,
unsigned long edid_length)
{
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
_ECORE_X_RANDR_EDID_MASK_DPMS_STANDBY);
return EINA_FALSE;
}
EAPI Eina_Bool
ecore_x_randr_edid_dpms_suspend_available_get(unsigned char *edid,
unsigned long edid_length)
{
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
_ECORE_X_RANDR_EDID_MASK_DPMS_SUSPEND);
return EINA_FALSE;
}
EAPI Eina_Bool
ecore_x_randr_edid_dpms_off_available_get(unsigned char *edid,
unsigned long edid_length)
{
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
if (edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] & _ECORE_X_RANDR_EDID_MASK_DPMS)
return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_DPMS] &
_ECORE_X_RANDR_EDID_MASK_DPMS_OFF);
return EINA_FALSE;
}
EAPI Eina_Bool
ecore_x_randr_edid_display_type_digital_get(unsigned char *edid,
unsigned long edid_length)
{
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return EINA_FALSE;
return !!(edid[_ECORE_X_RANDR_EDID_OFFSET_TYPE] &
_ECORE_X_RANDR_EDID_MASK_DIGITAL);
}
EAPI Ecore_X_Randr_Edid_Display_Colorscheme
ecore_x_randr_edid_display_colorscheme_get(unsigned char *edid,
unsigned long edid_length)
{
Ecore_X_Randr_Edid_Display_Colorscheme colorscheme = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return colorscheme;
if (ecore_x_randr_edid_display_type_digital_get(edid, edid_length))
{
colorscheme = ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_4_4_4;
if (edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] &
_ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_444)
colorscheme |= ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_YCRCB_4_4_4;
if (edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] &
_ECORE_X_RANDR_EDID_MASK_COLORSCHEME_DIGITAL_YCRCB_422)
colorscheme |= ECORE_X_RANDR_EDID_DISPLAY_COLORSCHEME_COLOR_RGB_YCRCB_4_2_2;
}
else
colorscheme = edid[_ECORE_X_RANDR_EDID_OFFSET_COLORSPACE] & _ECORE_X_RANDR_EDID_MASK_COLORSCHEME_ANALOGOUS;
return colorscheme;
}
EAPI Ecore_X_Randr_Edid_Display_Interface_Type
ecore_x_randr_edid_display_interface_type_get(unsigned char *edid,
unsigned long edid_length)
{
Ecore_X_Randr_Edid_Display_Interface_Type type = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
int version = ecore_x_randr_edid_version_get(edid, edid_length);
if (version < ECORE_X_RANDR_EDID_VERSION_13) return type;
type = edid[_ECORE_X_RANDR_EDID_OFFSET_TYPE] &
_ECORE_X_RANDR_EDID_MASK_INTERFACE_TYPE;
if (type > ECORE_X_RANDR_EDID_DISPLAY_INTERFACE_DISPLAY_PORT)
type = ECORE_X_RANDR_EDID_UNKNOWN_VALUE;
return type;
}
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