diff options
Diffstat (limited to 'src/libgamma-method.cc')
| -rw-r--r-- | src/libgamma-method.cc | 223 |
1 files changed, 221 insertions, 2 deletions
diff --git a/src/libgamma-method.cc b/src/libgamma-method.cc index 4acd857..a52c455 100644 --- a/src/libgamma-method.cc +++ b/src/libgamma-method.cc @@ -19,6 +19,17 @@ #include <cstdlib> #include <cstring> +#include <cerrno> + + +/** + * TODO temporary + */ +std::string create_error(int error_code) +{ + (void) error_code; + return nullptr; +} namespace libgamma @@ -49,7 +60,7 @@ namespace libgamma /** * Constructor. * - * @param caps The information in the native structure + * @param caps The information in the native structure. */ MethodCapabilities::MethodCapabilities(libgamma_method_capabilities_t* caps) : crtc_information(caps->crtc_information), @@ -177,7 +188,7 @@ namespace libgamma /** * Constructor. * - * @param info The information in the native structure + * @param info The information in the native structure. */ CRTCInformation::CRTCInformation(libgamma_crtc_information_t* info) : edid(info->edid), @@ -329,5 +340,213 @@ namespace libgamma 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; + } + } |