1 #include <string.h> 2 #include <iostream> 3 #include <stdexcept> 4 5 #include <xf86drm.h> 6 #include <xf86drmMode.h> 7 8 #include <kms++/kms++.h> 9 10 using namespace std; 11 12 namespace kms 13 { 14 15 DrmPropObject::DrmPropObject(Card& card, uint32_t object_type) 16 : DrmObject(card, object_type) 17 { 18 } 19 20 DrmPropObject::DrmPropObject(Card& card, uint32_t id, uint32_t object_type, uint32_t idx) 21 : DrmObject(card, id, object_type, idx) 22 { 23 refresh_props(); 24 } 25 26 DrmPropObject::~DrmPropObject() 27 { 28 29 } 30 31 void DrmPropObject::refresh_props() 32 { 33 auto props = drmModeObjectGetProperties(card().fd(), this->id(), this->object_type()); 34 35 if (props == nullptr) 36 return; 37 38 for (unsigned i = 0; i < props->count_props; ++i) { 39 uint32_t prop_id = props->props[i]; 40 uint64_t prop_value = props->prop_values[i]; 41 42 m_prop_values[prop_id] = prop_value; 43 } 44 45 drmModeFreeObjectProperties(props); 46 } 47 48 Property* DrmPropObject::get_prop(const string& name) const 49 { 50 for (auto pair : m_prop_values) { 51 auto prop = card().get_prop(pair.first); 52 53 if (name == prop->name()) 54 return prop; 55 } 56 57 throw invalid_argument(string("property ") + name + " not found"); 58 } 59 60 uint64_t DrmPropObject::get_prop_value(uint32_t id) const 61 { 62 return m_prop_values.at(id); 63 } 64 65 uint64_t DrmPropObject::get_prop_value(const string& name) const 66 { 67 for (auto pair : m_prop_values) { 68 auto prop = card().get_prop(pair.first); 69 if (name == prop->name()) 70 return m_prop_values.at(prop->id()); 71 } 72 73 throw invalid_argument("property not found: " + name); 74 } 75 76 unique_ptr<Blob> DrmPropObject::get_prop_value_as_blob(const string& name) const 77 { 78 uint32_t blob_id = (uint32_t)get_prop_value(name); 79 80 return unique_ptr<Blob>(new Blob(card(), blob_id)); 81 } 82 83 int DrmPropObject::set_prop_value(uint32_t id, uint64_t value) 84 { 85 return drmModeObjectSetProperty(card().fd(), this->id(), this->object_type(), id, value); 86 } 87 88 int DrmPropObject::set_prop_value(const string &name, uint64_t value) 89 { 90 Property* prop = get_prop(name); 91 92 if (prop == nullptr) 93 throw invalid_argument("property not found: " + name); 94 95 return set_prop_value(prop->id(), value); 96 } 97 98 } 99
