diff options
Diffstat (limited to 'kms++/src/card.cpp')
| -rw-r--r-- | kms++/src/card.cpp | 90 |
1 files changed, 69 insertions, 21 deletions
diff --git a/kms++/src/card.cpp b/kms++/src/card.cpp index 5b3d69e..935969d 100644 --- a/kms++/src/card.cpp +++ b/kms++/src/card.cpp @@ -9,6 +9,10 @@ #include <algorithm> #include <glob.h> +#include <sys/stat.h> +#include <sys/sysmacros.h> +#include <sys/types.h> + #include <xf86drm.h> #include <xf86drmMode.h> @@ -18,20 +22,19 @@ using namespace std; namespace kms { - static vector<string> glob(const string& pattern) { glob_t glob_result; memset(&glob_result, 0, sizeof(glob_result)); int r = glob(pattern.c_str(), 0, NULL, &glob_result); - if(r != 0) { + if (r != 0) { globfree(&glob_result); throw runtime_error("failed to find DRM cards"); } vector<string> filenames; - for(size_t i = 0; i < glob_result.gl_pathc; ++i) + for (size_t i = 0; i < glob_result.gl_pathc; ++i) filenames.push_back(string(glob_result.gl_pathv[i])); globfree(&glob_result); @@ -104,6 +107,16 @@ static int open_device_by_driver(string name, uint32_t idx) throw invalid_argument("Failed to find a DRM device " + name + ":" + to_string(idx)); } +std::unique_ptr<Card> Card::open_named_card(const std::string& name) +{ + int fd = drmOpen(name.c_str(), 0); + + if (fd < 0) + throw invalid_argument(string(strerror(errno)) + " opening card \"" + name + "\""); + + return std::unique_ptr<Card>(new Card(fd, true)); +} + Card::Card(const std::string& dev_path) { const char* drv_p = getenv("KMSXX_DRIVER"); @@ -148,6 +161,20 @@ Card::Card(const std::string& driver, uint32_t idx) setup(); } +Card::Card(int fd, bool take_ownership) +{ + if (take_ownership) { + m_fd = fd; + } else { + m_fd = fcntl(fd, F_DUPFD_CLOEXEC, 0); + + if (m_fd < 0) + throw invalid_argument(string(strerror(errno)) + " duplicating fd"); + } + + setup(); +} + void Card::setup() { drmVersionPtr ver = drmGetVersion(m_fd); @@ -159,8 +186,15 @@ void Card::setup() m_version.desc = string(ver->desc, ver->desc_len); drmFreeVersion(ver); + struct stat stats; int r; + r = fstat(m_fd, &stats); + if (r < 0) + throw invalid_argument("Can't stat device (" + string(strerror(errno)) + ")"); + + m_minor = minor(stats.st_dev); + r = drmSetMaster(m_fd); m_is_master = r == 0; @@ -280,7 +314,7 @@ void Card::restore_modes() Connector* Card::get_first_connected_connector() const { - for(auto c : m_connectors) { + for (auto c : m_connectors) { if (c->connected()) return c; } @@ -299,23 +333,37 @@ DrmObject* Card::get_object(uint32_t id) const std::vector<kms::DrmObject*> Card::get_objects() const { vector<DrmObject*> v; - for(auto pair : m_obmap) + for (auto pair : m_obmap) v.push_back(pair.second); return v; } -Connector* Card::get_connector(uint32_t id) const { return dynamic_cast<Connector*>(get_object(id)); } -Crtc* Card::get_crtc(uint32_t id) const { return dynamic_cast<Crtc*>(get_object(id)); } -Encoder* Card::get_encoder(uint32_t id) const { return dynamic_cast<Encoder*>(get_object(id)); } -Property* Card::get_prop(uint32_t id) const { return dynamic_cast<Property*>(get_object(id)); } -Plane* Card::get_plane(uint32_t id) const { return dynamic_cast<Plane*>(get_object(id)); } +Connector* Card::get_connector(uint32_t id) const +{ + return dynamic_cast<Connector*>(get_object(id)); +} +Crtc* Card::get_crtc(uint32_t id) const +{ + return dynamic_cast<Crtc*>(get_object(id)); +} +Encoder* Card::get_encoder(uint32_t id) const +{ + return dynamic_cast<Encoder*>(get_object(id)); +} +Property* Card::get_prop(uint32_t id) const +{ + return dynamic_cast<Property*>(get_object(id)); +} +Plane* Card::get_plane(uint32_t id) const +{ + return dynamic_cast<Plane*>(get_object(id)); +} std::vector<kms::Pipeline> Card::get_connected_pipelines() { vector<Pipeline> outputs; - for (auto conn : get_connectors()) - { + for (auto conn : get_connectors()) { if (conn->connected() == false) continue; @@ -335,7 +383,7 @@ std::vector<kms::Pipeline> Card::get_connected_pipelines() to_string(conn->idx()) + " has no possible crtcs"); - outputs.push_back(Pipeline { crtc, conn }); + outputs.push_back(Pipeline{ crtc, conn }); } return outputs; @@ -343,7 +391,7 @@ std::vector<kms::Pipeline> Card::get_connected_pipelines() static void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, - void *data) + void* data) { auto handler = (PageFlipHandlerBase*)data; double time = sec + usec / 1000000.0; @@ -352,7 +400,7 @@ static void page_flip_handler(int fd, unsigned int frame, void Card::call_page_flip_handlers() { - drmEventContext ev { }; + drmEventContext ev{}; ev.version = DRM_EVENT_CONTEXT_VERSION; ev.page_flip_handler = page_flip_handler; @@ -365,18 +413,18 @@ int Card::disable_all() for (Crtc* c : m_crtcs) { req.add(c, { - { "ACTIVE", 0 }, - }); + { "ACTIVE", 0 }, + }); } for (Plane* p : m_planes) { req.add(p, { - { "FB_ID", 0 }, - { "CRTC_ID", 0 }, - }); + { "FB_ID", 0 }, + { "CRTC_ID", 0 }, + }); } return req.commit_sync(true); } -} +} // namespace kms |