| 39 | |
| 40 | OVR_PUBLIC_FUNCTION(ovrResult) |
| 41 | ovr_GetInstanceExtensionsVk( |
| 42 | ovrGraphicsLuid luid, |
| 43 | char* extensionNames, |
| 44 | uint32_t* inoutExtensionNamesSize) |
| 45 | { |
| 46 | if (!inoutExtensionNamesSize) |
| 47 | ovrError_InvalidParameter; |
| 48 | |
| 49 | std::stringstream extensions; |
| 50 | uint32_t required = vr::VRCompositor()->GetVulkanInstanceExtensionsRequired(nullptr, 0); |
| 51 | if (required > 0) |
| 52 | { |
| 53 | std::vector<char> openvrExtensions(required); |
| 54 | vr::VRCompositor()->GetVulkanInstanceExtensionsRequired(openvrExtensions.data(), required); |
| 55 | extensions << openvrExtensions.data() << ' '; |
| 56 | } |
| 57 | |
| 58 | #ifdef DEBUG |
| 59 | extensions << VK_EXT_DEBUG_UTILS_EXTENSION_NAME << ' '; |
| 60 | #endif |
| 61 | extensions << VK_KHR_SURFACE_EXTENSION_NAME << ' '; |
| 62 | extensions << VK_KHR_WIN32_SURFACE_EXTENSION_NAME << ' '; |
| 63 | |
| 64 | // SteamVR forgets to specify the semaphore capabilities extensions |
| 65 | extensions << VK_KHR_EXTERNAL_SEMAPHORE_CAPABILITIES_EXTENSION_NAME; |
| 66 | |
| 67 | std::string result = extensions.str(); |
| 68 | uint32_t size = *inoutExtensionNamesSize; |
| 69 | *inoutExtensionNamesSize = (uint32_t)result.size(); |
| 70 | strncpy(extensionNames, result.c_str(), size); |
| 71 | return (result.size() < size) ? ovrSuccess : ovrError_InsufficientArraySize; |
| 72 | } |
| 73 | |
| 74 | OVR_PUBLIC_FUNCTION(ovrResult) |
| 75 | ovr_GetDeviceExtensionsVk( |