Vulkan-Hpp/RAII_Samples/13_InitVertexBuffer/13_InitVertexBuffer.cpp

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// Copyright(c) 2019, 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 : 13_InitVertexBuffer
// Initialize vertex buffer
#if defined( _MSC_VER )
// no need to ignore any warnings with MSVC
#elif defined( __GNUC__ )
# if ( 9 <= __GNUC__ )
# pragma GCC diagnostic ignored "-Winit-list-lifetime"
# endif
#else
// unknow compiler... just ignore the warnings for yourselves ;)
#endif
#include "../../samples/utils/geometries.hpp"
#include "../utils/utils.hpp"
#include <iostream>
static char const * AppName = "13_InitVertexBuffer";
static char const * EngineName = "Vulkan.hpp";
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
vk::raii::Context context;
vk::raii::Instance instance =
vk::raii::su::makeInstance( context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
#if !defined( NDEBUG )
vk::raii::DebugUtilsMessengerEXT debugUtilsMessenger( instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
#endif
vk::raii::PhysicalDevice physicalDevice = std::move( vk::raii::PhysicalDevices( instance ).front() );
vk::raii::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 64, 64 ) );
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
vk::raii::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
vk::raii::Device device = vk::raii::su::makeDevice(
physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
vk::raii::CommandPool commandPool = vk::raii::CommandPool(
device, { vk::CommandPoolCreateFlagBits::eResetCommandBuffer, graphicsAndPresentQueueFamilyIndex.first } );
vk::raii::CommandBuffer commandBuffer = vk::raii::su::makeCommandBuffer( device, commandPool );
vk::raii::Queue graphicsQueue( device, graphicsAndPresentQueueFamilyIndex.first, 0 );
vk::raii::su::SwapChainData swapChainData( physicalDevice,
device,
surfaceData.surface,
surfaceData.extent,
vk::ImageUsageFlagBits::eColorAttachment |
vk::ImageUsageFlagBits::eTransferSrc,
{},
graphicsAndPresentQueueFamilyIndex.first,
graphicsAndPresentQueueFamilyIndex.second );
vk::raii::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
vk::raii::RenderPass renderPass =
vk::raii::su::makeRenderPass( device, swapChainData.colorFormat, depthBufferData.format );
std::vector<vk::raii::Framebuffer> framebuffers = vk::raii::su::makeFramebuffers(
device, renderPass, swapChainData.imageViews, &depthBufferData.imageView, surfaceData.extent );
/* VULKAN_KEY_START */
// create a vertex buffer for some vertex and color data
vk::BufferCreateInfo bufferCreateInfo( {}, sizeof( coloredCubeData ), vk::BufferUsageFlagBits::eVertexBuffer );
vk::raii::Buffer vertexBuffer( device, bufferCreateInfo );
// allocate device memory for that buffer
vk::MemoryRequirements memoryRequirements = vertexBuffer.getMemoryRequirements();
uint32_t memoryTypeIndex =
vk::su::findMemoryType( physicalDevice.getMemoryProperties(),
memoryRequirements.memoryTypeBits,
vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent );
vk::MemoryAllocateInfo memoryAllocateInfo( memoryRequirements.size, memoryTypeIndex );
vk::raii::DeviceMemory deviceMemory( device, memoryAllocateInfo );
// copy the vertex and color data into that device memory
uint8_t * pData = static_cast<uint8_t *>( deviceMemory.mapMemory( 0, memoryRequirements.size ) );
memcpy( pData, coloredCubeData, sizeof( coloredCubeData ) );
deviceMemory.unmapMemory();
// and bind the device memory to the vertex buffer
vertexBuffer.bindMemory( *deviceMemory, 0 );
vk::raii::Semaphore imageAcquiredSemaphore( device, vk::SemaphoreCreateInfo() );
vk::Result result;
uint32_t imageIndex;
std::tie( result, imageIndex ) =
swapChainData.swapChain.acquireNextImage( vk::su::FenceTimeout, *imageAcquiredSemaphore );
assert( result == vk::Result::eSuccess );
assert( imageIndex < swapChainData.images.size() );
std::array<vk::ClearValue, 2> clearValues;
clearValues[0].color = vk::ClearColorValue( std::array<float, 4>( { { 0.2f, 0.2f, 0.2f, 0.2f } } ) );
clearValues[1].depthStencil = vk::ClearDepthStencilValue( 1.0f, 0 );
commandBuffer.begin( {} );
vk::RenderPassBeginInfo renderPassBeginInfo(
*renderPass, *framebuffers[imageIndex], vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ), clearValues );
commandBuffer.beginRenderPass( renderPassBeginInfo, vk::SubpassContents::eInline );
commandBuffer.bindVertexBuffers( 0, { *vertexBuffer }, { 0 } );
commandBuffer.endRenderPass();
commandBuffer.end();
vk::raii::su::submitAndWait( device, graphicsQueue, commandBuffer );
/* VULKAN_KEY_END */
}
catch ( vk::SystemError & err )
{
std::cout << "vk::SystemError: " << err.what() << std::endl;
exit( -1 );
}
catch ( std::exception & err )
{
std::cout << "std::exception: " << err.what() << std::endl;
exit( -1 );
}
catch ( ... )
{
std::cout << "unknown error\n";
exit( -1 );
}
return 0;
}