/**
* libgammamm -- C++ wrapper for libgamma
* Copyright (C) 2014 Mattias Andrée (maandree@member.fsf.org)
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "libgamma-method.hh"
#include "libgamma-error.hh"
#include <cstdlib>
#include <cstring>
#include <cerrno>
namespace libgamma
{
/**
* Constructor.
*/
MethodCapabilities::MethodCapabilities() :
crtc_information(0),
default_site_known(false),
multiple_sites(false),
multiple_partitions(false),
multiple_crtcs(false),
partitions_are_graphics_cards(false),
site_restore(false),
partition_restore(false),
crtc_restore(false),
identical_gamma_sizes(false),
fixed_gamma_size(false),
fixed_gamma_depth(false),
real(false),
fake(false)
{
/* Do nothing. */
}
/**
* Constructor.
*
* @param caps The information in the native structure.
*/
MethodCapabilities::MethodCapabilities(libgamma_method_capabilities_t* caps) :
crtc_information(caps->crtc_information),
default_site_known(caps->default_site_known),
multiple_sites(caps->multiple_sites),
multiple_partitions(caps->multiple_partitions),
multiple_crtcs(caps->multiple_crtcs),
partitions_are_graphics_cards(caps->partitions_are_graphics_cards),
site_restore(caps->site_restore),
partition_restore(caps->partition_restore),
crtc_restore(caps->crtc_restore),
identical_gamma_sizes(caps->identical_gamma_sizes),
fixed_gamma_size(caps->fixed_gamma_size),
fixed_gamma_depth(caps->fixed_gamma_depth),
real(caps->real),
fake(caps->fake)
{
/* Do nothing. */
}
/**
* Copy constructor.
*
* @param other The information to copy.
*/
MethodCapabilities::MethodCapabilities(const MethodCapabilities& other) :
crtc_information(other.crtc_information),
default_site_known(other.default_site_known),
multiple_sites(other.multiple_sites),
multiple_partitions(other.multiple_partitions),
multiple_crtcs(other.multiple_crtcs),
partitions_are_graphics_cards(other.partitions_are_graphics_cards),
site_restore(other.site_restore),
partition_restore(other.partition_restore),
crtc_restore(other.crtc_restore),
identical_gamma_sizes(other.identical_gamma_sizes),
fixed_gamma_size(other.fixed_gamma_size),
fixed_gamma_depth(other.fixed_gamma_depth),
real(other.real),
fake(other.fake)
{
/* Do nothing. */
}
/**
* Destructor.
*/
MethodCapabilities::~MethodCapabilities()
{
/* Do nothing. */
}
/**
* Copy operator.
*
* @param other The information to copy.
*/
MethodCapabilities& MethodCapabilities::operator =(const MethodCapabilities& other)
{
this->crtc_information = other.crtc_information;
this->default_site_known = other.default_site_known;
this->multiple_sites = other.multiple_sites;
this->multiple_partitions = other.multiple_partitions;
this->multiple_crtcs = other.multiple_crtcs;
this->partitions_are_graphics_cards = other.partitions_are_graphics_cards;
this->site_restore = other.site_restore;
this->partition_restore = other.partition_restore;
this->crtc_restore = other.crtc_restore;
this->identical_gamma_sizes = other.identical_gamma_sizes;
this->fixed_gamma_size = other.fixed_gamma_size;
this->fixed_gamma_depth = other.fixed_gamma_depth;
this->real = other.real;
this->fake = other.fake;
return *this;
}
/**
* Constructor.
*/
CRTCInformation::CRTCInformation() :
edid(nullptr),
edid_length(0),
edid_error(0),
width_mm(0),
width_mm_error(0),
height_mm(0),
height_mm_error(0),
width_mm_edid(0),
width_mm_edid_error(0),
height_mm_edid(0),
height_mm_edid_error(0),
red_gamma_size(0),
green_gamma_size(0),
blue_gamma_size(0),
gamma_size_error(0),
gamma_depth(0),
gamma_depth_error(0),
gamma_support(0),
gamma_support_error(0),
subpixel_order((SubpixelOrder)0),
subpixel_order_error(0),
active(0),
active_error(0),
connector_name(nullptr),
connector_name_error(0),
connector_type((ConnectorType)0),
connector_type_error(0),
gamma_red(0),
gamma_green(0),
gamma_blue(0),
gamma_error(0)
{
/* Do nothing. */
}
/**
* Constructor.
*
* @param info The information in the native structure.
*/
CRTCInformation::CRTCInformation(libgamma_crtc_information_t* info) :
edid(info->edid),
edid_length(info->edid_length),
edid_error(info->edid_error),
width_mm(info->width_mm),
width_mm_error(info->width_mm_error),
height_mm(info->height_mm),
height_mm_error(info->height_mm_error),
width_mm_edid(info->width_mm_edid),
width_mm_edid_error(info->width_mm_edid_error),
height_mm_edid(info->height_mm_edid),
height_mm_edid_error(info->height_mm_edid_error),
red_gamma_size(info->red_gamma_size),
green_gamma_size(info->green_gamma_size),
blue_gamma_size(info->blue_gamma_size),
gamma_size_error(info->gamma_size_error),
gamma_depth(info->gamma_depth),
gamma_depth_error(info->gamma_depth_error),
gamma_support(info->gamma_support),
gamma_support_error(info->gamma_support_error),
subpixel_order((SubpixelOrder)(info->subpixel_order)),
subpixel_order_error(info->subpixel_order_error),
active(info->active),
active_error(info->active_error),
connector_name(nullptr),
connector_name_error(info->connector_name_error),
connector_type((ConnectorType)(info->connector_type)),
connector_type_error(info->connector_type_error),
gamma_red(info->gamma_red),
gamma_green(info->gamma_green),
gamma_blue(info->gamma_blue),
gamma_error(info->gamma_error)
{
if (info->connector_name != nullptr)
{
this->connector_name = new std::string(info->connector_name);
free(info->connector_name);
}
}
/**
* Copy constructor.
*
* @param other The information to copy.
*/
CRTCInformation::CRTCInformation(const CRTCInformation& other) :
edid(nullptr),
edid_length(other.edid_length),
edid_error(other.edid_error),
width_mm(other.width_mm),
width_mm_error(other.width_mm_error),
height_mm(other.height_mm),
height_mm_error(other.height_mm_error),
width_mm_edid(other.width_mm_edid),
width_mm_edid_error(other.width_mm_edid_error),
height_mm_edid(other.height_mm_edid),
height_mm_edid_error(other.height_mm_edid_error),
red_gamma_size(other.red_gamma_size),
green_gamma_size(other.green_gamma_size),
blue_gamma_size(other.blue_gamma_size),
gamma_size_error(other.gamma_size_error),
gamma_depth(other.gamma_depth),
gamma_depth_error(other.gamma_depth_error),
gamma_support(other.gamma_support),
gamma_support_error(other.gamma_support_error),
subpixel_order(other.subpixel_order),
subpixel_order_error(other.subpixel_order_error),
active(other.active),
active_error(other.active_error),
connector_name(nullptr),
connector_name_error(other.connector_name_error),
connector_type(other.connector_type),
connector_type_error(other.connector_type_error),
gamma_red(other.gamma_red),
gamma_green(other.gamma_green),
gamma_blue(other.gamma_blue),
gamma_error(other.gamma_error)
{
if (other.edid != nullptr)
{
this->edid = (unsigned char*)malloc(this->edid_length * sizeof(unsigned char));
memcpy(this->edid, other.edid, this->edid_length * sizeof(unsigned char));
}
if (other.connector_name != nullptr)
this->connector_name = new std::string(*(other.connector_name));
}
/**
* Destructor.
*/
CRTCInformation::~CRTCInformation()
{
if (this->connector_name != nullptr)
delete this->connector_name;
free(this->edid);
}
/**
* Copy operator.
*
* @param other The information to copy.
*/
CRTCInformation& CRTCInformation::operator =(const CRTCInformation& other)
{
this->edid = nullptr;
this->edid_length = other.edid_length;
this->edid_error = other.edid_error;
this->width_mm = other.width_mm;
this->width_mm_error = other.width_mm_error;
this->height_mm = other.height_mm;
this->height_mm_error = other.height_mm_error;
this->width_mm_edid = other.width_mm_edid;
this->width_mm_edid_error = other.width_mm_edid_error;
this->height_mm_edid = other.height_mm_edid;
this->height_mm_edid_error = other.height_mm_edid_error;
this->red_gamma_size = other.red_gamma_size;
this->green_gamma_size = other.green_gamma_size;
this->blue_gamma_size = other.blue_gamma_size;
this->gamma_size_error = other.gamma_size_error;
this->gamma_depth = other.gamma_depth;
this->gamma_depth_error = other.gamma_depth_error;
this->gamma_support = other.gamma_support;
this->gamma_support_error = other.gamma_support_error;
this->subpixel_order = other.subpixel_order;
this->subpixel_order_error = other.subpixel_order_error;
this->active = other.active;
this->active_error = other.active_error;
this->connector_name = nullptr;
this->connector_name_error = other.connector_name_error;
this->connector_type = other.connector_type;
this->connector_type_error = other.connector_type_error;
this->gamma_red = other.gamma_red;
this->gamma_green = other.gamma_green;
this->gamma_blue = other.gamma_blue;
this->gamma_error = other.gamma_error;
if (other.edid != nullptr)
{
this->edid = (unsigned char*)malloc(this->edid_length * sizeof(unsigned char));
memcpy(this->edid, other.edid, this->edid_length * sizeof(unsigned char));
}
if (other.connector_name != nullptr)
this->connector_name = new std::string(*(other.connector_name));
return *this;
}
/**
* Constructor.
*/
Site::Site() :
method(0),
site(nullptr),
partitions_available(0),
native(nullptr)
{
/* Do nothing. */
}
/**
* Constructor.
*
* @param method The adjustment method of the site.
* @param site The site identifier, will be moved into
* the structure, must be `delete`:able.
*/
Site::Site(int method, std::string* site) :
method(method),
site(site),
partitions_available(0),
native(nullptr)
{
char* cstr = nullptr;
int r;
if (site != nullptr)
{
const char* cstr_ = site->c_str();
cstr = (char*)malloc((strlen(cstr_) + 1) * sizeof(char));
memcpy(cstr, cstr_, (strlen(cstr_) + 1) * sizeof(char));
}
this->native = (libgamma_site_state_t*)malloc(sizeof(libgamma_site_state_t));
r = libgamma_site_initialise(this->native, method, cstr);
if (r < 0)
{
int saved_errno = errno;
free(this->native);
this->native = nullptr;
errno = saved_errno;
throw create_error(r);
}
this->partitions_available = this->native->partitions_available;
}
/**
* Destructor.
*/
Site::~Site()
{
if (this->site != nullptr)
delete this->site;
if (this->native != nullptr)
libgamma_site_free(this->native);
}
/**
* Restore the gamma ramps all CRTC:s with a site to
* the system settings.
*/
void Site::restore()
{
int r;
r = libgamma_site_restore(this->native);
if (r != 0)
throw create_error(r);
}
/**
* Constructor.
*/
Partition::Partition() :
site(nullptr),
partition(0),
crtcs_available(0),
native(nullptr)
{
/* Do nothing. */
}
/**
* Constructor.
*
* @param site The site of the partition.
* @param partition The index of the partition.
*/
Partition::Partition(Site* site, size_t partition) :
site(site),
partition(partition),
crtcs_available(0),
native(nullptr)
{
int r;
this->native = (libgamma_partition_state_t*)malloc(sizeof(libgamma_partition_state_t));
r = libgamma_partition_initialise(this->native, site->native, partition);
if (r < 0)
{
int saved_errno = errno;
free(this->native);
this->native = nullptr;
errno = saved_errno;
throw create_error(r);
}
this->crtcs_available = this->native->crtcs_available;
}
/**
* Destructor.
*/
Partition::~Partition()
{
if (this->native != nullptr)
libgamma_partition_free(this->native);
}
/**
* Restore the gamma ramps all CRTC:s with a partition
* to the system settings.
*/
void Partition::restore()
{
int r;
r = libgamma_partition_restore(this->native);
if (r != 0)
throw create_error(r);
}
/**
* Constructor.
*/
CRTC::CRTC() :
partition(nullptr),
crtc(0),
native(nullptr)
{
/* Do nothing. */
}
/**
* Constructor.
*
* @param partition The partition of the CRTC.
* @param crtc The index of the CRTC.
*/
CRTC::CRTC(Partition* partition, size_t crtc) :
partition(partition),
crtc(crtc),
native(nullptr)
{
int r;
this->native = (libgamma_crtc_state_t*)malloc(sizeof(libgamma_crtc_state_t));
r = libgamma_crtc_initialise(this->native, partition->native, crtc);
if (r < 0)
{
int saved_errno = errno;
free(this->native);
this->native = nullptr;
errno = saved_errno;
throw create_error(r);
}
}
/**
* Destructor.
*/
CRTC::~CRTC()
{
if (this->native != nullptr)
libgamma_crtc_free(this->native);
}
/**
* Restore the gamma ramps for a CRTC to the system
* settings for that CRTC.
*/
void CRTC::restore()
{
int r;
r = libgamma_crtc_restore(this->native);
if (r != 0)
throw create_error(r);
}
/**
* Read information about a CRTC.
*
* @param output Instance of a data structure to fill with the information about the CRTC.
* @param fields OR:ed identifiers for the information about the CRTC that should be read.
* @return Whether an error has occurred and is stored in a `*_error` field.
*/
bool CRTC::information(CRTCInformation* output, int32_t fields)
{
libgamma_crtc_information_t info;
int r;
r = libgamma_get_crtc_information(&info, this->native, fields);
*output = CRTCInformation(&info);
return r != 0;
}
}
