f0dc8d6f38
- introduced samples/utils functions in namespace vk::su (vulkan sample utils) - introduced usage of debugReportCallback
99 lines
4.1 KiB
C++
99 lines
4.1 KiB
C++
// Copyright(c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// VulkanHpp Samples : 07_InitUniformBuffer
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// Initialize a uniform buffer
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#include "..\utils\utils.hpp"
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#include "vulkan/vulkan.hpp"
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#include <iostream>
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#define GLM_FORCE_RADIANS
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#pragma warning(disable:4201) // disable warning C4201: nonstandard extension used: nameless struct/union; needed to get glm/detail/type_vec?.hpp without warnings
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#include <glm/gtc/matrix_transform.hpp>
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static char const* AppName = "07_InitUniformBuffer";
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static char const* EngineName = "Vulkan.hpp";
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int main(int /*argc*/, char * /*argv[]*/)
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{
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try
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{
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vk::UniqueInstance instance = vk::su::createInstance(AppName, EngineName);
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#if !defined(NDEBUG)
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vk::UniqueDebugReportCallbackEXT debugReportCallback = vk::su::createDebugReportCallback(instance);
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#endif
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std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
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assert(!physicalDevices.empty());
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vk::UniqueDevice device = vk::su::createDevice(physicalDevices[0], vk::su::findGraphicsQueueFamilyIndex(physicalDevices[0].getQueueFamilyProperties()));
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/* VULKAN_HPP_KEY_START */
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glm::mat4x4 projection = glm::perspective(glm::radians(45.0f), 1.0f, 0.1f, 100.0f);
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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));
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glm::mat4x4 model = glm::mat4x4(1.0f);
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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 !
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glm::mat4x4 mvpc = clip * projection * view * model;
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vk::UniqueBuffer uniformDataBuffer = device->createBufferUnique(vk::BufferCreateInfo(vk::BufferCreateFlags(), sizeof(mvpc), vk::BufferUsageFlagBits::eUniformBuffer));
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vk::MemoryRequirements memoryRequirements = device->getBufferMemoryRequirements(uniformDataBuffer.get());
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uint32_t typeBits = memoryRequirements.memoryTypeBits;
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vk::PhysicalDeviceMemoryProperties memoryProperties = physicalDevices[0].getMemoryProperties();
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vk::MemoryPropertyFlags requirementsMask = vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent;
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uint32_t typeIndex = uint32_t(~0);
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for (uint32_t i = 0; i < memoryProperties.memoryTypeCount; i++)
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{
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if ((typeBits & 1) && ((memoryProperties.memoryTypes[i].propertyFlags & requirementsMask) == requirementsMask))
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{
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typeIndex = i;
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break;
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}
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typeBits >>= 1;
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}
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assert(typeIndex != ~0);
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vk::UniqueDeviceMemory uniformDataMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, typeIndex));
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uint8_t* pData = static_cast<uint8_t*>(device->mapMemory(uniformDataMemory.get(), 0, memoryRequirements.size));
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memcpy(pData, &mvpc, sizeof(mvpc));
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device->unmapMemory(uniformDataMemory.get());
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device->bindBufferMemory(uniformDataBuffer.get(), uniformDataMemory.get(), 0);
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// Note: No need to explicitly destroy the memory or the buffer, as the corresponding destroy function is
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// called by the destructor of the UniqueMemory or UniqueBuffer, respectively, on leaving this scope.
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/* VULKAN_HPP_KEY_END */
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}
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catch (vk::SystemError err)
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{
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std::cout << "vk::SystemError: " << err.what() << std::endl;
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exit(-1);
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}
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catch (std::runtime_error err)
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{
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std::cout << "std::runtime_error: " << err.what() << std::endl;
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exit(-1);
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}
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catch (...)
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{
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std::cout << "unknown error\n";
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exit(-1);
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}
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return 0;
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}
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