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#include "module.hpp"
#include "compat/library-path.hpp"
#include "compat/sleep.hpp"
#include "compat/run-in-thread.hpp"
#include <cstddef>
#include <QCoreApplication>
#include <QMessageBox>
#include <libusb.h>
#ifdef __GNUG__
# pragma clang diagnostic ignored "-Wcast-qual"
#endif
int device_count()
{
libusb_context * ctx = nullptr;
libusb_device **list = nullptr;
ssize_t sz = 0;
int rc = 0, cnt = 0;
constexpr int vendor_id = 0x1415;
constexpr int product_id = 0x2000;
rc = libusb_init(&ctx);
if (rc)
goto end;
sz = libusb_get_device_list(ctx, &list);
if (sz < 0)
goto end;
for (int i = 0; i < sz; ++i) {
libusb_device *device = list[i];
libusb_device_descriptor desc = {};
if (libusb_get_device_descriptor(device, &desc))
goto end;
if (desc.idVendor == vendor_id && desc.idProduct == product_id)
cnt++;
}
end:
if (list)
libusb_free_device_list(list, 1);
if (ctx)
libusb_exit(ctx);
return cnt;
}
bool check_device_exists()
{
static bool ret = device_count() > 0;
return ret;
}
static const QString camera_name = QStringLiteral("PS3 Eye open driver");
std::vector<QString> ps3eye_camera_::camera_names() const
{
if (check_device_exists())
return { camera_name };
else
return {};
}
std::unique_ptr<camera> ps3eye_camera_::make_camera(const QString& name)
{
if (name == camera_name && check_device_exists())
return std::make_unique<ps3eye_camera>();
else
return {};
}
bool ps3eye_camera_::show_dialog(const QString&)
{
// TODO
return false;
}
bool ps3eye_camera_::can_show_dialog(const QString&)
{
return false;
}
ps3eye_camera::ps3eye_camera()
{
if (!shm.success())
return;
static const QString library_path(OPENTRACK_BASE_PATH + OPENTRACK_LIBRARY_PATH);
wrapper.setWorkingDirectory(library_path);
#ifdef _WIN32
wrapper.setProgram("\"ps3eye-subprocess.exe\"");
#else
wrapper.setProgram("ps3eye-subprocess");
#endif
}
ps3eye_camera::~ps3eye_camera()
{
stop();
}
void ps3eye_camera::stop()
{
open = false;
if (wrapper.state() != QProcess::NotRunning)
{
if (shm.success())
{
volatile auto& ptr = *(ps3eye::shm*)shm.ptr();
ptr.in.do_exit = true;
if (!wrapper.waitForFinished(500))
wrapper.kill();
wrapper.waitForFinished(-1);
}
else
{
wrapper.kill();
wrapper.waitForFinished(-1);
}
}
}
bool ps3eye_camera::start(info& args)
{
if (!shm.success())
return false;
volatile auto& ptr = *(ps3eye::shm*)shm.ptr();
using mode = ps3eye::shm_in::mode;
open = false;
fr = {};
fr.channels = 3;
fr.channel_size = 1;
if (!args.width || args.width > 320)
{
ptr.in.resolution = mode::vga;
fr.width = 640; fr.height = 480;
}
else
{
ptr.in.resolution = mode::qvga;
fr.width = 320; fr.height = 240;
}
ptr.in.framerate = (uint8_t)std::clamp(args.fps, 30, 187);
ptr.in.gain = (uint8_t)s.gain;
ptr.in.exposure = (uint8_t)s.exposure;
wrapper.start();
constexpr int sleep_ms = 10, max_sleeps = 5000/sleep_ms;
for (int i = 0; i < max_sleeps; i++)
{
if (ptr.out.timecode > 0)
goto ok;
portable::sleep(sleep_ms);
}
run_in_thread_async(qApp, [&]() {
QString error;
if (ptr.out.error_string[0] == '\0')
error = "Unknown error";
else
error = QString::fromLatin1((const char*)ptr.out.error_string,
strnlen((const char*)ptr.out.error_string, sizeof(ptr.out.error_string)));
QMessageBox::critical(nullptr, "Can't open camera", "PS3 Eye driver error: " + error, QMessageBox::Close);
});
return false;
ok:
open = true;
return true;
}
std::tuple<const frame&, bool> ps3eye_camera::get_frame()
{
volatile auto& ptr = *(ps3eye::shm*)shm.ptr();
constexpr int sleep_ms = 10;
constexpr int max_sleeps = 2000/sleep_ms;
if (!open)
goto fail;
for (int i = 0; i < max_sleeps; i++)
{
unsigned new_timecode = ptr.out.timecode;
if (timecode != new_timecode)
{
timecode = new_timecode;
goto ok;
}
portable::sleep(sleep_ms);
}
fail:
stop();
return { fr, false };
static_assert(offsetof(decltype(ptr.out), data_640x480) == offsetof(decltype(ptr.out), data_320x240));
ok:
fr.data = (unsigned char*)ptr.out.data_640x480;
return { fr, true};
}
bool ps3eye_camera::show_dialog()
{
return false;
}
OTR_REGISTER_CAMERA(ps3eye_camera_)
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