hayodea
a4f96c8dfa
We also had to write conversion constructors and so on to CSenseDeviceDesc. The technical debt that's being piled up from this C FFI is excessive. I think we'll end it here. API Libs will have to be written in C++ from now on. API Lib interfaces will be in C++. We'll use cross compilers to ensure stability for out-of-tree lib development.
122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
#include <iostream>
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#include <algorithm>
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#include <stdexcept>
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#include <memory>
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#include <vector>
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#include <xcb/xcb.h>
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#include "xcbXorg.h"
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class AttachedDevice {
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public:
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AttachedDevice(const CSenseDeviceSpec &spec) : deviceSpec(spec) {}
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const CSenseDeviceSpec& getSpec() const {
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return deviceSpec;
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}
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private:
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CSenseDeviceSpec deviceSpec;
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};
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static std::vector<AttachedDevice> attachedDevices;
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struct XcbConnectionInfo {
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std::unique_ptr<xcb_connection_t, decltype(&xcb_disconnect)> connection;
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int screenNumber;
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XcbConnectionInfo()
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: connection(nullptr, &xcb_disconnect), screenNumber(0) {}
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};
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static XcbConnectionInfo xcbConn;
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static CExportedImplexorApiDesc xcbXorgExportedImplexorApis[] =
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{
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{
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.name = "video-implexor"
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}
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};
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static sal_mlo_initializeIndFn xcbXorg_initializeInd;
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static sal_mlo_finalizeIndFn xcbXorg_finalizeInd;
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static sal_mlo_attachDeviceReqFn xcbXorg_attachDeviceReq;
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static sal_mlo_detachDeviceReqFn xcbXorg_detachDeviceReq;
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static Csal_mgmt_libOps xcbXorgMgmtLibOps =
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{
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.initializeInd = xcbXorg_initializeInd,
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.finalizeInd = xcbXorg_finalizeInd,
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.attachDeviceReq = xcbXorg_attachDeviceReq,
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.detachDeviceReq = xcbXorg_detachDeviceReq
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};
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static CSenseApiDesc xcbXorgApiDesc =
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{
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.name = "xcb-xorg",
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.numExportedImplexorApis = sizeof(xcbXorgExportedImplexorApis) /
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sizeof(*xcbXorgExportedImplexorApis),
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.exportedImplexorApis = xcbXorgExportedImplexorApis,
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.sal_mgmt_libOps = &xcbXorgMgmtLibOps
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};
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extern HK_UNMANGLED getSenseApiDescFn HK_GET_SENSE_API_DESC_FN_NAME;
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const CSenseApiDesc *HK_GET_SENSE_API_DESC_FN_NAME(void)
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{
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return &xcbXorgApiDesc;
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}
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static sal_mlo_initializeIndFn xcbXorg_initializeInd;
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int xcbXorg_initializeInd(void)
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{
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xcbConn.connection.reset(
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xcb_connect(nullptr, &xcbConn.screenNumber));
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if (xcb_connection_has_error(xcbConn.connection.get()))
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{
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throw std::runtime_error(
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std::string(__func__) + ": Failed to connect to X server");
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}
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std::cout << __func__ << ": Connected to X server, screen number "
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<< xcbConn.screenNumber << "\n";
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return 0;
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}
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static sal_mlo_finalizeIndFn xcbXorg_finalizeInd;
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int xcbXorg_finalizeInd(void)
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{
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if (!xcbConn.connection) {
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return 0;
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}
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xcbConn.connection.reset();
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std::cout << __func__ << ": Disconnected from X server\n";
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return 0;
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}
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static sal_mlo_attachDeviceReqFn xcbXorg_attachDeviceReq;
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int xcbXorg_attachDeviceReq(const CSenseDeviceSpec *const desc)
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{
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attachedDevices.emplace_back(*desc);
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std::ostringstream os;
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for (const auto& device : attachedDevices) {
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os << device.getSpec();
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}
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std::cout << __func__ << ": >>>> Attaching device spec: " << *desc << "\n"
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<< " >>>> Current attached devices:\n" << os.str();
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return 0;
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}
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static sal_mlo_detachDeviceReqFn xcbXorg_detachDeviceReq;
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int xcbXorg_detachDeviceReq(const CSenseDeviceSpec *const spec)
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{
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auto it = std::remove_if(attachedDevices.begin(), attachedDevices.end(),
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[spec](const AttachedDevice &device) {
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return device.getSpec() == *spec;
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});
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attachedDevices.erase(it, attachedDevices.end());
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std::cout << __func__ << ": Detaching device spec\n";
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return 0;
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}
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