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hyprpaper
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hyprpaper/src/Hyprpaper.cpp

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#include "Hyprpaper.hpp"
#include <filesystem>
#include <fstream>
#include <signal.h>
#include <sys/types.h>
CHyprpaper::CHyprpaper() = default;
static void handleGlobal(CCWlRegistry* registry, uint32_t name, const char* interface, uint32_t version) {
if (strcmp(interface, wl_compositor_interface.name) == 0) {
g_pHyprpaper->m_pCompositor = makeShared<CCWlCompositor>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wl_compositor_interface, 4));
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
g_pHyprpaper->m_pSHM = makeShared<CCWlShm>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wl_shm_interface, 1));
} else if (strcmp(interface, wl_output_interface.name) == 0) {
g_pHyprpaper->m_mtTickMutex.lock();
const auto PMONITOR = g_pHyprpaper->m_vMonitors.emplace_back(std::make_unique<SMonitor>()).get();
PMONITOR->wayland_name = name;
PMONITOR->name = "";
PMONITOR->output = makeShared<CCWlOutput>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wl_output_interface, 4));
PMONITOR->registerListeners();
g_pHyprpaper->m_mtTickMutex.unlock();
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
g_pHyprpaper->createSeat(makeShared<CCWlSeat>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wl_seat_interface, 7)));
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
g_pHyprpaper->m_pLayerShell = makeShared<CCZwlrLayerShellV1>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &zwlr_layer_shell_v1_interface, 1));
} else if (strcmp(interface, wp_fractional_scale_manager_v1_interface.name) == 0 && !g_pHyprpaper->m_bNoFractionalScale) {
g_pHyprpaper->m_pFractionalScale =
makeShared<CCWpFractionalScaleManagerV1>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wp_fractional_scale_manager_v1_interface, 1));
} else if (strcmp(interface, wp_viewporter_interface.name) == 0) {
g_pHyprpaper->m_pViewporter = makeShared<CCWpViewporter>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wp_viewporter_interface, 1));
} else if (strcmp(interface, wp_cursor_shape_manager_v1_interface.name) == 0) {
g_pHyprpaper->m_pCursorShape =
makeShared<CCWpCursorShapeManagerV1>((wl_proxy*)wl_registry_bind((wl_registry*)registry->resource(), name, &wp_cursor_shape_manager_v1_interface, 1));
}
}
static void handleGlobalRemove(CCWlRegistry* registry, uint32_t name) {
for (auto& m : g_pHyprpaper->m_vMonitors) {
if (m->wayland_name == name) {
Debug::log(LOG, "Destroying output %s", m->name.c_str());
g_pHyprpaper->clearWallpaperFromMonitor(m->name);
std::erase_if(g_pHyprpaper->m_vMonitors, [&](const auto& other) { return other->wayland_name == name; });
return;
}
}
}
void CHyprpaper::init() {
if (!lockSingleInstance()) {
Debug::log(CRIT, "Cannot launch multiple instances of Hyprpaper at once!");
exit(1);
}
removeOldHyprpaperImages();
m_sDisplay = (wl_display*)wl_display_connect(nullptr);
if (!m_sDisplay) {
Debug::log(CRIT, "No wayland compositor running!");
exit(1);
}
// run
auto REGISTRY = makeShared<CCWlRegistry>((wl_proxy*)wl_display_get_registry(m_sDisplay));
REGISTRY->setGlobal(::handleGlobal);
REGISTRY->setGlobalRemove(::handleGlobalRemove);
wl_display_roundtrip(m_sDisplay);
while (m_vMonitors.size() < 1 || m_vMonitors[0]->name.empty()) {
wl_display_dispatch(m_sDisplay);
}
g_pConfigManager = std::make_unique<CConfigManager>();
g_pIPCSocket = std::make_unique<CIPCSocket>();
g_pConfigManager->parse();
preloadAllWallpapersFromConfig();
if (std::any_cast<Hyprlang::INT>(g_pConfigManager->config->getConfigValue("ipc")))
g_pIPCSocket->initialize();
do {
std::lock_guard<std::mutex> lg(m_mtTickMutex);
tick(true);
} while (wl_display_dispatch(m_sDisplay) != -1);
unlockSingleInstance();
}
void CHyprpaper::tick(bool force) {
bool reload = g_pIPCSocket && g_pIPCSocket->mainThreadParseRequest();
if (!reload && !force)
return;
preloadAllWallpapersFromConfig();
ensurePoolBuffersPresent();
recheckAllMonitors();
}
bool CHyprpaper::isPreloaded(const std::string& path) {
for (auto& [pt, wt] : m_mWallpaperTargets) {
if (pt == path)
return true;
}
return false;
}
void CHyprpaper::unloadWallpaper(const std::string& path) {
bool found = false;
for (auto& [ewp, cls] : m_mWallpaperTargets) {
if (ewp == path) {
// found
found = true;
break;
}
}
if (!found) {
Debug::log(LOG, "Cannot unload a target that was not loaded!");
return;
}
// clean buffers
for (auto it = m_vBuffers.begin(); it != m_vBuffers.end();) {
if (it->get()->target != path) {
it++;
continue;
}
const auto PRELOADPATH = it->get()->name;
Debug::log(LOG, "Unloading target %s, preload path %s", path.c_str(), PRELOADPATH.c_str());
std::filesystem::remove(PRELOADPATH);
destroyBuffer(it->get());
it = m_vBuffers.erase(it);
}
m_mWallpaperTargets.erase(path); // will free the cairo surface
}
void CHyprpaper::preloadAllWallpapersFromConfig() {
if (g_pConfigManager->m_dRequestedPreloads.empty())
return;
for (auto& wp : g_pConfigManager->m_dRequestedPreloads) {
// check if it doesnt exist
bool exists = false;
for (auto& [ewp, cls] : m_mWallpaperTargets) {
if (ewp == wp) {
Debug::log(LOG, "Ignoring request to preload %s as it already is preloaded!", ewp.c_str());
exists = true;
break;
}
}
if (exists)
continue;
m_mWallpaperTargets[wp] = CWallpaperTarget();
if (std::filesystem::is_symlink(wp)) {
auto real_wp = std::filesystem::read_symlink(wp);
std::filesystem::path absolute_path = std::filesystem::path(wp).parent_path() / real_wp;
absolute_path = absolute_path.lexically_normal();
m_mWallpaperTargets[wp].create(absolute_path);
} else {
m_mWallpaperTargets[wp].create(wp);
}
}
g_pConfigManager->m_dRequestedPreloads.clear();
}
void CHyprpaper::recheckAllMonitors() {
for (auto& m : m_vMonitors) {
recheckMonitor(m.get());
}
}
void CHyprpaper::createSeat(SP<CCWlSeat> pSeat) {
m_pSeat = pSeat;
pSeat->setCapabilities([this](CCWlSeat* r, wl_seat_capability caps) {
if (caps & WL_SEAT_CAPABILITY_POINTER) {
m_pSeatPointer = makeShared<CCWlPointer>(m_pSeat->sendGetPointer());
if (!m_pCursorShape)
Debug::log(WARN, "No cursor-shape-v1 support from the compositor: cursor will be blank");
else
m_pSeatCursorShapeDevice = makeShared<CCWpCursorShapeDeviceV1>(m_pCursorShape->sendGetPointer(m_pSeatPointer->resource()));
m_pSeatPointer->setEnter([this](CCWlPointer* r, uint32_t serial, wl_resource* surface, wl_fixed_t x, wl_fixed_t y) {
if (!m_pCursorShape) {
m_pSeatPointer->sendSetCursor(serial, nullptr, 0, 0);
return;
}
m_pSeatCursorShapeDevice->sendSetShape(serial, wpCursorShapeDeviceV1Shape::WP_CURSOR_SHAPE_DEVICE_V1_SHAPE_DEFAULT);
});
} else
Debug::log(LOG, "No pointer capability from the compositor");
});
}
void CHyprpaper::recheckMonitor(SMonitor* pMonitor) {
ensureMonitorHasActiveWallpaper(pMonitor);
if (pMonitor->wantsACK) {
pMonitor->wantsACK = false;
pMonitor->pCurrentLayerSurface->pLayerSurface->sendAckConfigure(pMonitor->configureSerial);
}
if (pMonitor->wantsReload) {
pMonitor->wantsReload = false;
renderWallpaperForMonitor(pMonitor);
}
}
void CHyprpaper::removeOldHyprpaperImages() {
int cleaned = 0;
uint64_t memoryFreed = 0;
for (const auto& entry : std::filesystem::directory_iterator(std::string(getenv("XDG_RUNTIME_DIR")))) {
if (entry.is_directory())
continue;
const auto FILENAME = entry.path().filename().string();
if (FILENAME.contains(".hyprpaper_")) {
// unlink it
memoryFreed += entry.file_size();
if (!std::filesystem::remove(entry.path()))
Debug::log(LOG, "Couldn't remove %s", entry.path().string().c_str());
cleaned++;
}
}
if (cleaned != 0) {
Debug::log(LOG, "Cleaned old hyprpaper preloads (%i), removing %.1fMB", cleaned, ((float)memoryFreed) / 1000000.f);
}
}
SMonitor* CHyprpaper::getMonitorFromName(const std::string& monname) {
bool useDesc = false;
std::string desc = "";
if (monname.find("desc:") == 0) {
useDesc = true;
desc = monname.substr(5);
}
for (auto& m : m_vMonitors) {
if (useDesc && m->description.find(desc) == 0)
return m.get();
if (m->name == monname)
return m.get();
}
return nullptr;
}
void CHyprpaper::ensurePoolBuffersPresent() {
bool anyNewBuffers = false;
for (auto& [file, wt] : m_mWallpaperTargets) {
for (auto& m : m_vMonitors) {
if (m->size == Vector2D())
continue;
auto it = std::find_if(m_vBuffers.begin(), m_vBuffers.end(), [wt = &wt, &m](const std::unique_ptr<SPoolBuffer>& el) {
auto scale = std::round((m->pCurrentLayerSurface && m->pCurrentLayerSurface->pFractionalScaleInfo ? m->pCurrentLayerSurface->fScale : m->scale) * 120.0) / 120.0;
return el->target == wt->m_szPath && vectorDeltaLessThan(el->pixelSize, m->size * scale, 1);
});
if (it == m_vBuffers.end()) {
// create
const auto PBUFFER = m_vBuffers.emplace_back(std::make_unique<SPoolBuffer>()).get();
auto scale = std::round((m->pCurrentLayerSurface && m->pCurrentLayerSurface->pFractionalScaleInfo ? m->pCurrentLayerSurface->fScale : m->scale) * 120.0) / 120.0;
createBuffer(PBUFFER, m->size.x * scale, m->size.y * scale, WL_SHM_FORMAT_ARGB8888);
PBUFFER->target = wt.m_szPath;
Debug::log(LOG, "Buffer created for target %s, Shared Memory usage: %.1fMB", wt.m_szPath.c_str(), PBUFFER->size / 1000000.f);
anyNewBuffers = true;
}
}
}
if (anyNewBuffers) {
uint64_t bytesUsed = 0;
for (auto& bf : m_vBuffers) {
bytesUsed += bf->size;
}
Debug::log(LOG, "Total SM usage for all buffers: %.1fMB", bytesUsed / 1000000.f);
}
}
void CHyprpaper::clearWallpaperFromMonitor(const std::string& monname) {
const auto PMONITOR = getMonitorFromName(monname);
if (!PMONITOR)
return;
auto it = m_mMonitorActiveWallpaperTargets.find(PMONITOR);
if (it != m_mMonitorActiveWallpaperTargets.end())
m_mMonitorActiveWallpaperTargets.erase(it);
PMONITOR->hasATarget = true;
if (PMONITOR->pCurrentLayerSurface) {
PMONITOR->pCurrentLayerSurface = nullptr;
PMONITOR->wantsACK = false;
PMONITOR->wantsReload = false;
PMONITOR->initialized = false;
PMONITOR->readyForLS = true;
}
}
void CHyprpaper::ensureMonitorHasActiveWallpaper(SMonitor* pMonitor) {
if (!pMonitor->readyForLS || !pMonitor->hasATarget)
return;
auto it = m_mMonitorActiveWallpaperTargets.find(pMonitor);
if (it == m_mMonitorActiveWallpaperTargets.end()) {
m_mMonitorActiveWallpaperTargets[pMonitor] = nullptr;
it = m_mMonitorActiveWallpaperTargets.find(pMonitor);
}
if (it->second)
return; // has
// get the target
for (auto& [mon, path1] : m_mMonitorActiveWallpapers) {
if (mon.find("desc:") != 0)
continue;
if (pMonitor->description.find(mon.substr(5)) == 0) {
for (auto& [path2, target] : m_mWallpaperTargets) {
if (path1 == path2) {
it->second = &target;
break;
}
}
break;
}
}
if (!it->second) {
for (auto& [mon, path1] : m_mMonitorActiveWallpapers) {
if (mon == pMonitor->name) {
for (auto& [path2, target] : m_mWallpaperTargets) {
if (path1 == path2) {
it->second = &target;
break;
}
}
break;
}
}
}
if (!it->second) {
// try to find a wildcard
for (auto& [mon, path1] : m_mMonitorActiveWallpapers) {
if (mon.empty()) {
for (auto& [path2, target] : m_mWallpaperTargets) {
if (path1 == path2) {
it->second = &target;
break;
}
}
break;
}
}
}
if (!it->second) {
pMonitor->hasATarget = false;
Debug::log(WARN, "Monitor %s does not have a target! A wallpaper will not be created.", pMonitor->name.c_str());
return;
}
// create it for thy if it doesnt have
if (!pMonitor->pCurrentLayerSurface)
createLSForMonitor(pMonitor);
else
pMonitor->wantsReload = true;
}
void CHyprpaper::createLSForMonitor(SMonitor* pMonitor) {
pMonitor->pCurrentLayerSurface = pMonitor->layerSurfaces.emplace_back(std::make_unique<CLayerSurface>(pMonitor)).get();
}
bool CHyprpaper::setCloexec(const int& FD) {
long flags = fcntl(FD, F_GETFD);
if (flags == -1) {
return false;
}
if (fcntl(FD, F_SETFD, flags | FD_CLOEXEC) == -1) {
return false;
}
return true;
}
int CHyprpaper::createPoolFile(size_t size, std::string& name) {
const auto XDGRUNTIMEDIR = getenv("XDG_RUNTIME_DIR");
if (!XDGRUNTIMEDIR) {
Debug::log(CRIT, "XDG_RUNTIME_DIR not set!");
exit(1);
}
name = std::string(XDGRUNTIMEDIR) + "/.hyprpaper_XXXXXX";
const auto FD = mkstemp((char*)name.c_str());
if (FD < 0) {
Debug::log(CRIT, "createPoolFile: fd < 0");
exit(1);
}
if (!setCloexec(FD)) {
close(FD);
Debug::log(CRIT, "createPoolFile: !setCloexec");
exit(1);
}
if (ftruncate(FD, size) < 0) {
close(FD);
Debug::log(CRIT, "createPoolFile: ftruncate < 0");
exit(1);
}
return FD;
}
void CHyprpaper::createBuffer(SPoolBuffer* pBuffer, int32_t w, int32_t h, uint32_t format) {
const size_t STRIDE = w * 4;
const size_t SIZE = STRIDE * h;
std::string name;
const auto FD = createPoolFile(SIZE, name);
if (FD == -1) {
Debug::log(CRIT, "Unable to create pool file!");
exit(1);
}
const auto DATA = mmap(nullptr, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, FD, 0);
auto POOL = makeShared<CCWlShmPool>(g_pHyprpaper->m_pSHM->sendCreatePool(FD, SIZE));
pBuffer->buffer = makeShared<CCWlBuffer>(POOL->sendCreateBuffer(0, w, h, STRIDE, format));
POOL.reset();
close(FD);
pBuffer->size = SIZE;
pBuffer->data = DATA;
pBuffer->surface = cairo_image_surface_create_for_data((unsigned char*)DATA, CAIRO_FORMAT_ARGB32, w, h, STRIDE);
pBuffer->cairo = cairo_create(pBuffer->surface);
pBuffer->pixelSize = Vector2D(w, h);
pBuffer->name = name;
}
void CHyprpaper::destroyBuffer(SPoolBuffer* pBuffer) {
pBuffer->buffer.reset();
cairo_destroy(pBuffer->cairo);
cairo_surface_destroy(pBuffer->surface);
munmap(pBuffer->data, pBuffer->size);
pBuffer->buffer = nullptr;
}
SPoolBuffer* CHyprpaper::getPoolBuffer(SMonitor* pMonitor, CWallpaperTarget* pWallpaperTarget) {
const auto IT = std::find_if(m_vBuffers.begin(), m_vBuffers.end(), [&](const std::unique_ptr<SPoolBuffer>& el) {
auto scale =
std::round((pMonitor->pCurrentLayerSurface && pMonitor->pCurrentLayerSurface->pFractionalScaleInfo ? pMonitor->pCurrentLayerSurface->fScale : pMonitor->scale) *
120.0) /
120.0;
return el->target == pWallpaperTarget->m_szPath && vectorDeltaLessThan(el->pixelSize, pMonitor->size * scale, 1);
});
if (IT == m_vBuffers.end())
return nullptr;
return IT->get();
}
void CHyprpaper::renderWallpaperForMonitor(SMonitor* pMonitor) {
static auto* const PRENDERSPLASH = reinterpret_cast<Hyprlang::INT* const*>(g_pConfigManager->config->getConfigValuePtr("splash")->getDataStaticPtr());
static auto* const PSPLASHOFFSET = reinterpret_cast<Hyprlang::FLOAT* const*>(g_pConfigManager->config->getConfigValuePtr("splash_offset")->getDataStaticPtr());
if (!m_mMonitorActiveWallpaperTargets[pMonitor])
recheckMonitor(pMonitor);
const auto PWALLPAPERTARGET = m_mMonitorActiveWallpaperTargets[pMonitor];
const auto CONTAIN = m_mMonitorWallpaperRenderData[pMonitor->name].contain;
if (!PWALLPAPERTARGET) {
Debug::log(CRIT, "wallpaper target null in render??");
exit(1);
}
auto* PBUFFER = getPoolBuffer(pMonitor, PWALLPAPERTARGET);
if (!PBUFFER) {
Debug::log(LOG, "Pool buffer missing for available target??");
ensurePoolBuffersPresent();
PBUFFER = getPoolBuffer(pMonitor, PWALLPAPERTARGET);
if (!PBUFFER) {
Debug::log(LOG, "Pool buffer failed #2. Ignoring WP.");
return;
}
}
const double SURFACESCALE = pMonitor->pCurrentLayerSurface && pMonitor->pCurrentLayerSurface->pFractionalScaleInfo ? pMonitor->pCurrentLayerSurface->fScale : pMonitor->scale;
const Vector2D DIMENSIONS = Vector2D{std::round(pMonitor->size.x * SURFACESCALE), std::round(pMonitor->size.y * SURFACESCALE)};
const auto PCAIRO = PBUFFER->cairo;
cairo_save(PCAIRO);
cairo_set_operator(PCAIRO, CAIRO_OPERATOR_CLEAR);
cairo_paint(PCAIRO);
cairo_restore(PCAIRO);
// always draw a black background behind the wallpaper
cairo_set_source_rgb(PCAIRO, 0, 0, 0);
cairo_rectangle(PCAIRO, 0, 0, DIMENSIONS.x, DIMENSIONS.y);
cairo_fill(PCAIRO);
cairo_surface_flush(PBUFFER->surface);
// get scale
// we always do cover
double scale;
Vector2D origin;
const bool LOWASPECTRATIO = pMonitor->size.x / pMonitor->size.y > PWALLPAPERTARGET->m_vSize.x / PWALLPAPERTARGET->m_vSize.y;
if ((CONTAIN && !LOWASPECTRATIO) || (!CONTAIN && LOWASPECTRATIO)) {
scale = DIMENSIONS.x / PWALLPAPERTARGET->m_vSize.x;
origin.y = -(PWALLPAPERTARGET->m_vSize.y * scale - DIMENSIONS.y) / 2.0 / scale;
} else {
scale = DIMENSIONS.y / PWALLPAPERTARGET->m_vSize.y;
origin.x = -(PWALLPAPERTARGET->m_vSize.x * scale - DIMENSIONS.x) / 2.0 / scale;
}
Debug::log(LOG, "Image data for %s: %s at [%.2f, %.2f], scale: %.2f (original image size: [%i, %i])", pMonitor->name.c_str(), PWALLPAPERTARGET->m_szPath.c_str(), origin.x,
origin.y, scale, (int)PWALLPAPERTARGET->m_vSize.x, (int)PWALLPAPERTARGET->m_vSize.y);
cairo_scale(PCAIRO, scale, scale);
cairo_set_source_surface(PCAIRO, PWALLPAPERTARGET->m_pCairoSurface, origin.x, origin.y);
cairo_paint(PCAIRO);
if (**PRENDERSPLASH && getenv("HYPRLAND_INSTANCE_SIGNATURE")) {
auto SPLASH = execAndGet("hyprctl splash");
SPLASH.pop_back();
Debug::log(LOG, "Rendering splash: %s", SPLASH.c_str());
cairo_select_font_face(PCAIRO, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
const auto FONTSIZE = (int)(DIMENSIONS.y / 76.0 / scale);
cairo_set_font_size(PCAIRO, FONTSIZE);
static auto* const PSPLASHCOLOR = reinterpret_cast<Hyprlang::INT* const*>(g_pConfigManager->config->getConfigValuePtr("splash_color")->getDataStaticPtr());
Debug::log(LOG, "Splash color: %x", **PSPLASHCOLOR);
cairo_set_source_rgba(PCAIRO, ((**PSPLASHCOLOR >> 16) & 0xFF) / 255.0, ((**PSPLASHCOLOR >> 8) & 0xFF) / 255.0, (**PSPLASHCOLOR & 0xFF) / 255.0,
((**PSPLASHCOLOR >> 24) & 0xFF) / 255.0);
cairo_text_extents_t textExtents;
cairo_text_extents(PCAIRO, SPLASH.c_str(), &textExtents);
cairo_move_to(PCAIRO, ((DIMENSIONS.x - textExtents.width * scale) / 2.0) / scale, ((DIMENSIONS.y * (100 - **PSPLASHOFFSET)) / 100 - textExtents.height * scale) / scale);
Debug::log(LOG, "Splash font size: %d, pos: %.2f, %.2f", FONTSIZE, (DIMENSIONS.x - textExtents.width) / 2.0 / scale,
((DIMENSIONS.y * (100 - **PSPLASHOFFSET)) / 100 - textExtents.height * scale) / scale);
cairo_show_text(PCAIRO, SPLASH.c_str());
cairo_surface_flush(PWALLPAPERTARGET->m_pCairoSurface);
}
cairo_restore(PCAIRO);
if (pMonitor->pCurrentLayerSurface) {
pMonitor->pCurrentLayerSurface->pSurface->sendAttach(PBUFFER->buffer.get(), 0, 0);
pMonitor->pCurrentLayerSurface->pSurface->sendSetBufferScale(pMonitor->pCurrentLayerSurface->pFractionalScaleInfo ? 1 : pMonitor->scale);
pMonitor->pCurrentLayerSurface->pSurface->sendDamageBuffer(0, 0, 0xFFFF, 0xFFFF);
// our wps are always opaque
auto opaqueRegion = makeShared<CCWlRegion>(g_pHyprpaper->m_pCompositor->sendCreateRegion());
opaqueRegion->sendAdd(0, 0, PBUFFER->pixelSize.x, PBUFFER->pixelSize.y);
pMonitor->pCurrentLayerSurface->pSurface->sendSetOpaqueRegion(opaqueRegion.get());
if (pMonitor->pCurrentLayerSurface->pFractionalScaleInfo) {
Debug::log(LOG, "Submitting viewport dest size %ix%i for %x", static_cast<int>(std::round(pMonitor->size.x)), static_cast<int>(std::round(pMonitor->size.y)),
pMonitor->pCurrentLayerSurface);
pMonitor->pCurrentLayerSurface->pViewport->sendSetDestination(static_cast<int>(std::round(pMonitor->size.x)), static_cast<int>(std::round(pMonitor->size.y)));
}
pMonitor->pCurrentLayerSurface->pSurface->sendCommit();
}
// check if we dont need to remove a wallpaper
if (pMonitor->layerSurfaces.size() > 1) {
for (auto it = pMonitor->layerSurfaces.begin(); it != pMonitor->layerSurfaces.end(); it++) {
if (pMonitor->pCurrentLayerSurface != it->get()) {
pMonitor->layerSurfaces.erase(it);
break;
}
}
}
}
bool CHyprpaper::lockSingleInstance() {
const std::string XDG_RUNTIME_DIR = getenv("XDG_RUNTIME_DIR");
const auto LOCKFILE = XDG_RUNTIME_DIR + "/hyprpaper.lock";
if (std::filesystem::exists(LOCKFILE)) {
std::ifstream ifs(LOCKFILE);
std::string content((std::istreambuf_iterator<char>(ifs)), (std::istreambuf_iterator<char>()));
try {
kill(std::stoull(content), 0);
if (errno != ESRCH)
return false;
} catch (std::exception& e) { ; }
}
// create lockfile
std::ofstream ofs(LOCKFILE, std::ios::trunc);
ofs << std::to_string(getpid());
ofs.close();
return true;
}
void CHyprpaper::unlockSingleInstance() {
const std::string XDG_RUNTIME_DIR = getenv("XDG_RUNTIME_DIR");
const auto LOCKFILE = XDG_RUNTIME_DIR + "/hyprpaper.lock";
unlink(LOCKFILE.c_str());
}
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