tearing-control: hyprland impl (#5655)

* tearing: hl impl

* format

1 files changed, 106 insertions, 0 deletions

diff --git a/src/protocols/TearingControl.cpp b/src/protocols/TearingControl.cpp
new file mode 100644
index 00000000..0ed495bd
--- /dev/null
+++ b/src/protocols/TearingControl.cpp
@@ -0,0 +1,106 @@
+#include "TearingControl.hpp"
+#include "tearing-control-v1-protocol.h"
+#include "../managers/ProtocolManager.hpp"
+#include "../desktop/Window.hpp"
+#include "../Compositor.hpp"
+
+static void destroyManager(wl_client* client, wl_resource* resource) {
+    RESOURCE_OR_BAIL(PRESOURCE);
+    reinterpret_cast<CTearingControlProtocol*>(PRESOURCE->data())->onManagerResourceDestroy(resource);
+}
+
+static void getTearingControl(wl_client* client, wl_resource* resource, uint32_t id, wl_resource* surface) {
+    RESOURCE_OR_BAIL(PRESOURCE);
+    reinterpret_cast<CTearingControlProtocol*>(PRESOURCE->data())->onGetController(client, resource, id, wlr_surface_from_resource(surface));
+}
+
+//
+
+CTearingControlProtocol::CTearingControlProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
+    g_pHookSystem->hookDynamic("destroyWindow", [this](void* self, SCallbackInfo& info, std::any param) { this->onWindowDestroy(std::any_cast<CWindow*>(param)); });
+}
+
+static const struct wp_tearing_control_manager_v1_interface MANAGER_IMPL = {
+    .destroy             = ::destroyManager,
+    .get_tearing_control = ::getTearingControl,
+};
+
+void CTearingControlProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
+    const auto RESOURCE = m_vManagers.emplace_back(std::make_unique<CWaylandResource>(client, &wp_tearing_control_manager_v1_interface, ver, id)).get();
+
+    if (!RESOURCE->good()) {
+        Debug::log(LOG, "Couldn't bind TearingControlMgr");
+        return;
+    }
+
+    RESOURCE->setImplementation(&MANAGER_IMPL, nullptr);
+    RESOURCE->setData(this);
+}
+
+void CTearingControlProtocol::onManagerResourceDestroy(wl_resource* res) {
+    std::erase_if(m_vManagers, [&](const auto& other) { return other->resource() == res; });
+}
+
+void CTearingControlProtocol::onGetController(wl_client* client, wl_resource* resource, uint32_t id, wlr_surface* surf) {
+    const auto CONTROLLER = m_vTearingControllers
+                                .emplace_back(std::make_unique<CTearingControl>(
+                                    std::make_shared<CWaylandResource>(client, &wp_tearing_control_v1_interface, wl_resource_get_version(resource), id), surf))
+                                .get();
+
+    if (!CONTROLLER->good()) {
+        m_vTearingControllers.pop_back();
+        return;
+    }
+}
+
+void CTearingControlProtocol::onControllerDestroy(CTearingControl* control) {
+    std::erase_if(m_vTearingControllers, [control](const auto& other) { return other.get() == control; });
+}
+
+void CTearingControlProtocol::onWindowDestroy(CWindow* pWindow) {
+    for (auto& c : m_vTearingControllers) {
+        if (c->pWindow == pWindow)
+            c->pWindow = nullptr;
+    }
+}
+
+//
+
+static void destroyController(wl_client* client, wl_resource* resource) {
+    RESOURCE_OR_BAIL(PRESOURCE);
+    PROTO::tearing->onControllerDestroy(reinterpret_cast<CTearingControl*>(PRESOURCE->data()));
+}
+
+static void setPresentationHint(wl_client* client, wl_resource* resource, uint32_t hint) {
+    RESOURCE_OR_BAIL(PRESOURCE);
+    reinterpret_cast<CTearingControl*>(PRESOURCE->data())->onHint(hint);
+}
+
+static const struct wp_tearing_control_v1_interface CONTROLLER_IMPL = {
+    .set_presentation_hint = ::setPresentationHint,
+    .destroy               = ::destroyController,
+};
+
+CTearingControl::CTearingControl(SP<CWaylandResource> resource_, wlr_surface* surf_) : resource(resource_) {
+    resource->setImplementation(&CONTROLLER_IMPL, nullptr);
+    resource->setData(this);
+    resource->setOnDestroyHandler([](CWaylandResource* res) { PROTO::tearing->onControllerDestroy(reinterpret_cast<CTearingControl*>(res->data())); });
+
+    pWindow = g_pCompositor->getWindowFromSurface(surf_);
+}
+
+void CTearingControl::onHint(uint32_t hint_) {
+    hint = hint_ == WP_TEARING_CONTROL_V1_PRESENTATION_HINT_VSYNC ? TEARING_VSYNC : TEARING_ASYNC;
+    updateWindow();
+}
+
+void CTearingControl::updateWindow() {
+    if (!pWindow)
+        return;
+
+    pWindow->m_bTearingHint = hint == TEARING_ASYNC;
+}
+
+bool CTearingControl::good() {
+    return resource->good();
+}