Sample on vulkan.hpp: 07_InitUniformBuffer. (#203)

.gitmodules

@@ -1,3 +1,6 @@
+[submodule "glm"]
+	path = glm
+	url = https://github.com/g-truc/glm.git
 [submodule "tinyxml2"]
 	path = tinyxml2
 	url = https://github.com/leethomason/tinyxml2.git

glm

@@ -0,0 +1 @@
+Subproject commit 6fa203eeb7fbcbb6f620501fad40359c8a456049

samples/06_InitDepthBuffer/06_InitDepthBuffer.cpp

@@ -12,13 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
-// VulkanHpp Samples : 05_InitSwapchain
-//                     Initialize a swapchain
+// VulkanHpp Samples : 06_InitDepthBuffer
+//                     Initialize a depth buffer
 
 #include "vulkan/vulkan.hpp"
 #include <iostream>
 
-static char const* AppName = "05_InitSwapchain";
+static char const* AppName = "06_InitDepthBuffer";
 static char const* EngineName = "Vulkan.hpp";
 
 template<class T, class Compare>

samples/07_InitUniformBuffer/07_InitUniformBuffer.cpp

@@ -0,0 +1,104 @@
+// 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 : 07_InitUniformBuffer
+//                     Initialize a uniform buffer
+
+#include <iostream>
+#include "vulkan/vulkan.hpp"
+
+#define GLM_FORCE_RADIANS
+#include <glm/gtc/matrix_transform.hpp>
+
+static char const* AppName = "07_InitUniformBuffer";
+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 */
+
+    glm::mat4x4 projection = glm::perspective(glm::radians(45.0f), 1.0f, 0.1f, 100.0f);
+    glm::mat4x4 view = glm::lookAt(glm::vec3(-5.0f, 3.0f, -10.0f), glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, -1.0f, 0.0f));
+    glm::mat4x4 model = glm::mat4x4(1.0f);
+    glm::mat4x4 clip = glm::mat4x4(1.0f, 0.0f, 0.0f, 0.0f,  0.0f, -1.0f, 0.0f, 0.0f,  0.0f, 0.0f, 0.5f, 0.0f,  0.0f, 0.0f, 0.5f, 1.0f);   // vulkan clip space has inverted y and half z !
+    glm::mat4x4 mvpc = clip * projection * view * model;
+
+    vk::UniqueBuffer uniformDataBuffer = device->createBufferUnique(vk::BufferCreateInfo(vk::BufferCreateFlags(), sizeof(mvpc), vk::BufferUsageFlagBits::eUniformBuffer));
+
+    vk::MemoryRequirements memoryRequirements = device->getBufferMemoryRequirements(uniformDataBuffer.get());
+    uint32_t typeBits = memoryRequirements.memoryTypeBits;
+
+    vk::PhysicalDeviceMemoryProperties memoryProperties = physicalDevices[0].getMemoryProperties();
+    vk::MemoryPropertyFlags requirementsMask = vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent;
+    uint32_t typeIndex = ~0;
+    for (uint32_t i = 0; i < memoryProperties.memoryTypeCount; i++)
+    {
+      if ((typeBits & 1) && ((memoryProperties.memoryTypes[i].propertyFlags & requirementsMask) == requirementsMask))
+      {
+        typeIndex = i;
+        break;
+      }
+      typeBits >>= 1;
+    }
+    assert(typeIndex != ~0);
+    vk::UniqueDeviceMemory uniformDataMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, typeIndex));
+
+    uint8_t* pData = static_cast<uint8_t*>(device->mapMemory(uniformDataMemory.get(), 0, memoryRequirements.size));
+    memcpy(pData, &mvpc, sizeof(mvpc));
+    device->unmapMemory(uniformDataMemory.get());
+
+    device->bindBufferMemory(uniformDataBuffer.get(), uniformDataMemory.get(), 0);
+
+    // Note: No need to explicitly destroy the memory or the buffer, as the corresponding destroy function is
+    // called by the destructor of the UniqueMemory or UniqueBuffer, 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;
+}

samples/07_InitUniformBuffer/CMakeLists.txt

@@ -0,0 +1,41 @@
+# 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(07_InitUniformBuffer)
+
+set(HEADERS
+)
+
+set(SOURCES
+  07_InitUniformBuffer.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(07_InitUniformBuffer
+  ${HEADERS}
+  ${SOURCES}
+)
+
+set_target_properties(07_InitUniformBuffer PROPERTIES FOLDER "Samples")
+
+if (SAMPLES_BUILD_WITH_LOCAL_VULKAN_HPP)
+  target_include_directories(07_InitUniformBuffer PUBLIC "${CMAKE_SOURCE_DIR}")
+endif()
+target_include_directories(07_InitUniformBuffer PUBLIC "$ENV{VK_SDK_PATH}/include" "${CMAKE_SOURCE_DIR}/glm")
+
+target_link_libraries(07_InitUniformBuffer "$ENV{VK_SDK_PATH}/Lib/vulkan-1.lib")