Added Support for Multiplayer Player 1 Immersive View

runtime/tests/vr_policy_tests.cpp

@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#include "vr/mkw_vr_policy.h"
+
+#include <cstring>
+#include <iostream>
+
+using namespace mkw::vr;
+
+int main() {
+    int failures = 0;
+    const auto check = [&](bool condition, const char* message) {
+        if (!condition) {
+            std::cerr << message << '\n';
+            ++failures;
+        }
+    };
+    MkwVRPolicyReset();
+    MkwVRPolicyConfig config{};
+    config.enabled = true;
+    MkwVRPolicyConfigure(config);
+    MkwVRPolicySetSessionActive(true);
+    MkwVRPolicySetAvailableBindings(kMkwVRRequiredImmersiveBindings);
+    MkwVRSceneObservation scene{VRSceneMode::Race, 1, 10};
+    MkwVRCameraObservation camera{};
+    camera.view_from_world = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0};
+    camera.guest_camera_address = 0x81000000;
+    camera.guest_frame_index = 10;
+    camera.valid = true;
+    MkwVRPolicyPublishScene(scene);
+    MkwVRPolicyPublishRaceCamera(camera);
+    uint64_t previous_tag = 0;
+    for (uint32_t players : {1u, 2u, 3u, 4u, 2u, 1u}) {
+        scene.local_player_count = players;
+        MkwVRPolicyPublishScene(scene);
+        const auto snapshot = MkwVRPolicyGetSnapshot();
+        check(snapshot.presentation == VRPresentationMode::ImmersiveRace, "1-4 players should be immersive");
+        check(snapshot.content_tag != previous_tag, "layout changes must invalidate retained packets");
+        previous_tag = snapshot.content_tag;
+        MkwVRPolicyPublishScene(scene);
+        MkwVRPolicyPublishRaceCamera(camera);
+        check(MkwVRPolicyGetSnapshot().content_tag == previous_tag, "steady frames must keep the same tag");
+    }
+    camera.guest_frame_index = 11;
+    MkwVRPolicyPublishRaceCamera(camera);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::ImmersiveRace,
+          "adjacent camera publication is coherent");
+    camera.guest_frame_index = 12;
+    MkwVRPolicyPublishRaceCamera(camera);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "stale camera fails safe");
+    camera.guest_frame_index = 10;
+    MkwVRPolicyPublishRaceCamera(camera);
+    for (uint32_t players : {0u, 5u, UINT32_MAX}) {
+        scene.local_player_count = players;
+        MkwVRPolicyPublishScene(scene);
+        check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "invalid counts fail safe");
+    }
+    scene.local_player_count = 4;
+    MkwVRPolicyPublishScene(scene);
+    const uint32_t nan_bits = 0x7fc00000;
+    std::memcpy(&camera.view_from_world[0], &nan_bits, sizeof(nan_bits));
+    MkwVRPolicyPublishRaceCamera(camera);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "NaN camera fails under fast math");
+    camera.view_from_world[0] = 1;
+    MkwVRPolicyPublishRaceCamera(camera);
+    MkwVRPolicySetAvailableBindings(MkwVRBindingRaceCamera);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "partial hooks fail safe");
+    MkwVRPolicySetAvailableBindings(kMkwVRRequiredImmersiveBindings);
+    scene.mode = VRSceneMode::FrontEnd;
+    MkwVRPolicyPublishScene(scene);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "menus use virtual screen");
+    scene.mode = VRSceneMode::Race;
+    MkwVRPolicyPublishScene(scene);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::VirtualScreen, "race entry needs fresh camera");
+    MkwVRPolicyPublishRaceCamera(camera);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::ImmersiveRace, "race resumes with fresh camera");
+    MkwVRPolicySetSessionActive(false);
+    check(MkwVRPolicyGetSnapshot().presentation == VRPresentationMode::Desktop, "inactive session uses desktop");
+    return failures == 0 ? 0 : 1;
+}