Use direct spirv in hello-world example. (#3207)

* Use direct spirv in hello-world example.

* Use vulkan 1.1

* Use vulkan 1.2.

* fix.

* Fix test.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

2 files changed, 3 insertions, 2 deletions

diff --git a/examples/hello-world/main.cpp b/examples/hello-world/main.cpp
index db243749b..95c3daa72 100644
--- a/examples/hello-world/main.cpp
+++ b/examples/hello-world/main.cpp
@@ -115,7 +115,8 @@ int HelloWorldExample::createComputePipelineFromShader()
     slang::TargetDesc targetDesc = {};
     targetDesc.format = SLANG_SPIRV;
     targetDesc.profile = slangGlobalSession->findProfile("glsl440");
-    
+    targetDesc.flags = SLANG_TARGET_FLAG_GENERATE_SPIRV_DIRECTLY;
+
     sessionDesc.targets = &targetDesc;
     sessionDesc.targetCount = 1;
 
diff --git a/examples/hello-world/vulkan-api.cpp b/examples/hello-world/vulkan-api.cpp
index d2d8aefa6..cc52956ce 100644
--- a/examples/hello-world/vulkan-api.cpp
+++ b/examples/hello-world/vulkan-api.cpp
@@ -74,7 +74,7 @@ int initializeVulkanDevice(VulkanAPI& api)
     VkApplicationInfo applicationInfo = {VK_STRUCTURE_TYPE_APPLICATION_INFO};
     applicationInfo.pApplicationName = "slang-hello-world";
     applicationInfo.pEngineName = "slang-hello-world";
-    applicationInfo.apiVersion = VK_API_VERSION_1_0;
+    applicationInfo.apiVersion = VK_API_VERSION_1_2;
     applicationInfo.engineVersion = 1;
     applicationInfo.applicationVersion = 1;
     const char* instanceExtensions[] = {