From 9efc002efdd10a4692181399a4b1829c3bbb01d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20S=C3=BC=C3=9Fenbach?= <asuessenbach@nvidia.com>
Date: Wed, 25 Apr 2018 13:53:09 +0200
Subject: [PATCH] Sample on vulkan.hpp: 08_InitPipelineLayout. (#210)

---
 .../08_InitPipelineLayout.cpp                 | 76 +++++++++++++++++++
 samples/08_InitPipelineLayout/CMakeLists.txt  | 35 +++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 samples/08_InitPipelineLayout/08_InitPipelineLayout.cpp
 create mode 100644 samples/08_InitPipelineLayout/CMakeLists.txt

diff --git a/samples/08_InitPipelineLayout/08_InitPipelineLayout.cpp b/samples/08_InitPipelineLayout/08_InitPipelineLayout.cpp
new file mode 100644
index 0000000..db6b902
--- /dev/null
+++ b/samples/08_InitPipelineLayout/08_InitPipelineLayout.cpp
@@ -0,0 +1,76 @@
+// Copyright(c) 2018, NVIDIA CORPORATION. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// VulkanHpp Samples : 08_InitPipelineLayout
+//                     Initialize a descriptor and pipeline layout
+
+#include <iostream>
+#include "vulkan/vulkan.hpp"
+
+static char const* AppName = "08_InitPipelineLayout";
+static char const* EngineName = "Vulkan.hpp";
+
+int main(int argc, char *argv[])
+{
+  try
+  {
+    vk::ApplicationInfo appInfo(AppName, 1, EngineName, 1, VK_API_VERSION_1_1);
+    vk::InstanceCreateInfo instanceCreateInfo({}, &appInfo);
+    vk::UniqueInstance instance = vk::createInstanceUnique(instanceCreateInfo);
+
+    std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
+    assert(!physicalDevices.empty());
+
+    // determine a queueFamilyIndex that supports graphics
+    std::vector<vk::QueueFamilyProperties> queueFamilyProperties = physicalDevices[0].getQueueFamilyProperties();
+    size_t graphicsQueueFamilyIndex = std::distance(queueFamilyProperties.begin(),
+      std::find_if(queueFamilyProperties.begin(),
+        queueFamilyProperties.end(),
+        [](vk::QueueFamilyProperties const& qfp) { return qfp.queueFlags & vk::QueueFlagBits::eGraphics; }));
+
+    // create a device
+    float queuePriority = 0.0f;
+    vk::DeviceQueueCreateInfo deviceQueueCreateInfo({}, static_cast<uint32_t>(graphicsQueueFamilyIndex), 1, &queuePriority);
+    vk::UniqueDevice device = physicalDevices[0].createDeviceUnique(vk::DeviceCreateInfo({}, 1, &deviceQueueCreateInfo, 0, nullptr));
+
+    /* VULKAN_HPP_KEY_START */
+
+    // create a DescriptorSetLayout
+    vk::DescriptorSetLayoutBinding descriptorSetLayoutBinding(0, vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex);
+    vk::UniqueDescriptorSetLayout descriptorSetLayout = device->createDescriptorSetLayoutUnique(vk::DescriptorSetLayoutCreateInfo(vk::DescriptorSetLayoutCreateFlags(), 1, &descriptorSetLayoutBinding));
+
+    // create a PipelineLayout using that DescriptorSetLayout
+    vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(vk::PipelineLayoutCreateInfo(vk::PipelineLayoutCreateFlags(), 1, &descriptorSetLayout.get()));
+
+    // Note: No need to explicitly destroy the layouts, as the corresponding destroy function is
+    // called by the destructor of the UniqueDescriptorSetLayout or UniquePipelineLayout, respectively, on leaving this scope.
+
+    /* VULKAN_HPP_KEY_END */
+  }
+  catch (vk::SystemError err)
+  {
+    std::cout << "vk::SystemError: " << err.what() << std::endl;
+    exit(-1);
+  }
+  catch (std::runtime_error err)
+  {
+    std::cout << "std::runtime_error: " << err.what() << std::endl;
+  }
+  catch (...)
+  {
+    std::cout << "unknown error\n";
+    exit(-1);
+  }
+  return 0;
+}
diff --git a/samples/08_InitPipelineLayout/CMakeLists.txt b/samples/08_InitPipelineLayout/CMakeLists.txt
new file mode 100644
index 0000000..3be46a5
--- /dev/null
+++ b/samples/08_InitPipelineLayout/CMakeLists.txt
@@ -0,0 +1,35 @@
+# Copyright(c) 2018, NVIDIA CORPORATION. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.2)
+
+project(08_InitPipelineLayout)
+
+set(HEADERS
+)
+
+set(SOURCES
+  08_InitPipelineLayout.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(08_InitPipelineLayout
+  ${HEADERS}
+  ${SOURCES}
+)
+
+set_target_properties(08_InitPipelineLayout PROPERTIES FOLDER "Samples")
+target_link_libraries(08_InitPipelineLayout "$ENV{VK_SDK_PATH}/Lib/vulkan-1.lib")