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/* See LICENSE file for copyright and license details. */
#define IN_LIBGAMMA_DUMMY
#include "common.h"
/**
* Read information about a CRTC
*
* @param this Instance of a data structure to fill with the information about the CRTC
* @param crtc The state of the CRTC whose information should be read
* @param fields OR:ed identifiers for the information about the CRTC that should be read
* @return Zero on success, -1 on error; on error refer to the error reports in `this`
*/
int
libgamma_dummy_get_crtc_information(struct libgamma_crtc_information *restrict this,
struct libgamma_crtc_state *restrict crtc, unsigned long long fields)
{
struct libgamma_dummy_crtc *restrict data = crtc->data;
unsigned long long supported = libgamma_dummy_internal_configurations.capabilities.crtc_information;
int e = 0;
size_t n;
/* Copy over information */
*this = data->info;
/* Duplicate strings */
if (this->edid) {
this->edid = malloc(this->edid_length * sizeof(char));
if (!this->edid)
this->edid_error = errno;
memcpy(this->edid, data->info.edid, this->edid_length * sizeof(char));
}
if (this->connector_name) {
n = strlen(this->connector_name);
this->connector_name = malloc((n + 1) * sizeof(char));
if (!this->connector_name)
this->connector_name_error = errno;
memcpy(this->connector_name, data->info.connector_name, (n + 1) * sizeof(char));
}
/* Parse EDID */
if (this->edid_error)
this->width_mm_edid_error = this->height_mm_edid_error = this->gamma_error = this->edid_error;
else if (fields & (LIBGAMMA_CRTC_INFO_MACRO_EDID ^ LIBGAMMA_CRTC_INFO_EDID))
e |= libgamma_internal_parse_edid(this, fields);
/* Test errors */
#define _E(FIELD, VAR)\
((fields & FIELD) ? ((supported & FIELD) ? VAR : (VAR = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED)) : 0)
e |= _E(LIBGAMMA_CRTC_INFO_EDID, this->edid_error);
e |= _E(LIBGAMMA_CRTC_INFO_WIDTH_MM, this->width_mm_error);
e |= _E(LIBGAMMA_CRTC_INFO_HEIGHT_MM, this->height_mm_error);
e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_SIZE, this->gamma_size_error);
e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_DEPTH, this->gamma_depth_error);
e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT, this->gamma_support_error);
e |= _E(LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER, this->subpixel_order_error);
e |= _E(LIBGAMMA_CRTC_INFO_ACTIVE, this->active_error);
e |= _E(LIBGAMMA_CRTC_INFO_CONNECTOR_NAME, this->connector_name_error);
e |= _E(LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE, this->connector_type_error);
if ((fields & LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID) && !(supported & LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID))
e |= this->width_mm_edid_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
if ((fields & LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID) && !(supported & LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID))
e |= this->height_mm_edid_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
if ((fields & LIBGAMMA_CRTC_INFO_GAMMA) && !(supported & LIBGAMMA_CRTC_INFO_GAMMA))
e |= this->gamma_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
#undef _E
return e ? -1 : 0;
}
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