diff options
Diffstat (limited to 'libgamma-method.cc')
| -rw-r--r-- | libgamma-method.cc | 535 |
1 files changed, 535 insertions, 0 deletions
diff --git a/libgamma-method.cc b/libgamma-method.cc new file mode 100644 index 0000000..79230f2 --- /dev/null +++ b/libgamma-method.cc @@ -0,0 +1,535 @@ +/* See LICENSE file for copyright and license details. */ +#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(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(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; + } + +#ifdef __GNUC__ +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wshadow" +#endif + + /** + * 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; + } + +#ifdef __GNUC__ +# pragma GCC diagnostic pop +#endif + +} + |