libs: port entitlement requests and fixed-refresh VRR status

src/libs/libVideoOutVrrStatus.cpp

@@ -0,0 +1,71 @@
+#include "common/abi.h"
+#include "graphics/presentation/videoOut.h"
+#include "libs/errno.h"
+#include "libs/libs.h"
+#include "loader/symbolDatabase.h"
+
+#include <cinttypes>
+#include <cstring>
+
+namespace Libs::LibGen5::VrrStatus {
+
+LIB_VERSION("VideoOutVrrStatus", 1, "VideoOut", 1, 1);
+
+static KYTY_SYSV_ABI int VideoOutVrrStatus_kP2L8t3j_aM() {
+	// The observed guest call passes no arguments.
+	// Return success for Kyty's fixed-refresh path.
+	return OK;
+}
+
+static KYTY_SYSV_ABI int VideoOutVrrStatus_LibwuIonIBw(LibKernel::EventQueue::KernelEqueue eq,
+                                                       int handle, void* udata) {
+	PRINT_NAME();
+
+	LOGF("\t eq     = 0x%016" PRIx64 "\n", static_cast<uint64_t>(eq));
+	LOGF("\t handle = %d\n", handle);
+	LOGF("\t udata  = 0x%016" PRIx64 "\n", reinterpret_cast<uint64_t>(udata));
+
+	// Fixed-refresh output has no VRR status changes to signal.
+	return OK;
+}
+
+static KYTY_SYSV_ABI int VideoOutVrrStatus__q_vbO859Tw(LibKernel::EventQueue::KernelEqueue eq,
+                                                       int                                 handle) {
+	PRINT_NAME();
+
+	LOGF("\t eq     = 0x%016" PRIx64 "\n", static_cast<uint64_t>(eq));
+	LOGF("\t handle = %d\n", handle);
+
+	return OK;
+}
+
+static KYTY_SYSV_ABI int VideoOutVrrStatus_gWT7X8H0bYs(int handle, void* status) {
+	PRINT_NAME();
+
+	LOGF("\t handle = %d\n", handle);
+	LOGF("\t status = 0x%016" PRIx64 "\n", reinterpret_cast<uint64_t>(status));
+
+	if (status == nullptr) {
+		return VideoOut::VIDEO_OUT_ERROR_INVALID_ADDRESS;
+	}
+
+	const int result = VideoOut::VideoOutGetOutputStatus(
+	    handle, static_cast<VideoOut::VideoOutOutputStatus*>(status));
+	if (result != OK) {
+		return result;
+	}
+
+	// The guest's private status layout extends the 0x30-byte output status
+	// with an 8-byte VRR range. GetOutputStatus clears flags, including bit 4 (VRR off).
+	std::memset(static_cast<uint8_t*>(status) + 0x30, 0, 0x08);
+	return OK;
+}
+
+LIB_DEFINE(InitVideoOutVrrStatus_1) {
+	LIB_FUNC("kP2L8t3j-aM", VideoOutVrrStatus_kP2L8t3j_aM);
+	LIB_FUNC("LibwuIonIBw", VideoOutVrrStatus_LibwuIonIBw);
+	LIB_FUNC("-q-vbO859Tw", VideoOutVrrStatus__q_vbO859Tw);
+	LIB_FUNC("gWT7X8H0bYs", VideoOutVrrStatus_gWT7X8H0bYs);
+}
+
+} // namespace Libs::LibGen5::VrrStatus