2019-03-15 09:40:45 +00:00
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// Copyright(c) 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 : 13_InitVertexBuffer
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// Initialize vertex buffer
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#include "../utils/geometries.hpp"
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#include "../utils/utils.hpp"
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2020-04-12 19:49:12 +00:00
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2019-03-15 09:40:45 +00:00
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#include <iostream>
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2020-04-12 19:49:12 +00:00
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static char const * AppName = "13_InitVertexBuffer";
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static char const * EngineName = "Vulkan.hpp";
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2019-03-15 09:40:45 +00:00
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2020-04-12 19:49:12 +00:00
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int main( int /*argc*/, char ** /*argv*/ )
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2019-03-15 09:40:45 +00:00
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{
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try
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{
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vk::Instance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions() );
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2020-04-12 19:49:12 +00:00
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#if !defined( NDEBUG )
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vk::DebugUtilsMessengerEXT debugUtilsMessenger = instance.createDebugUtilsMessengerEXT( vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
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#endif
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vk::PhysicalDevice physicalDevice = instance.enumeratePhysicalDevices().front();
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vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 64, 64 ) );
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std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex = vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
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vk::Device device = vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
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vk::CommandPool commandPool = vk::su::createCommandPool( device, graphicsAndPresentQueueFamilyIndex.first );
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vk::CommandBuffer commandBuffer =
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device.allocateCommandBuffers( vk::CommandBufferAllocateInfo( commandPool, vk::CommandBufferLevel::ePrimary, 1 ) ).front();
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vk::Queue graphicsQueue = device.getQueue( graphicsAndPresentQueueFamilyIndex.first, 0 );
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vk::su::SwapChainData swapChainData( physicalDevice,
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device,
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surfaceData.surface,
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surfaceData.extent,
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vk::ImageUsageFlagBits::eColorAttachment | vk::ImageUsageFlagBits::eTransferSrc,
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{},
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graphicsAndPresentQueueFamilyIndex.first,
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graphicsAndPresentQueueFamilyIndex.second );
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vk::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
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vk::RenderPass renderPass = vk::su::createRenderPass( device, swapChainData.colorFormat, depthBufferData.format );
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std::vector<vk::Framebuffer> framebuffers =
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vk::su::createFramebuffers( device, renderPass, swapChainData.imageViews, depthBufferData.imageView, surfaceData.extent );
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/* VULKAN_KEY_START */
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// create a vertex buffer for some vertex and color data
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vk::Buffer vertexBuffer =
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device.createBuffer( vk::BufferCreateInfo( vk::BufferCreateFlags(), sizeof( coloredCubeData ), vk::BufferUsageFlagBits::eVertexBuffer ) );
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// allocate device memory for that buffer
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vk::MemoryRequirements memoryRequirements = device.getBufferMemoryRequirements( vertexBuffer );
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uint32_t memoryTypeIndex = vk::su::findMemoryType( physicalDevice.getMemoryProperties(),
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memoryRequirements.memoryTypeBits,
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vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent );
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vk::DeviceMemory deviceMemory = device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
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// copy the vertex and color data into that device memory
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uint8_t * pData = static_cast<uint8_t *>( device.mapMemory( deviceMemory, 0, memoryRequirements.size ) );
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memcpy( pData, coloredCubeData, sizeof( coloredCubeData ) );
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device.unmapMemory( deviceMemory );
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// and bind the device memory to the vertex buffer
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device.bindBufferMemory( vertexBuffer, deviceMemory, 0 );
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vk::Semaphore imageAcquiredSemaphore = device.createSemaphore( vk::SemaphoreCreateInfo( vk::SemaphoreCreateFlags() ) );
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vk::ResultValue<uint32_t> currentBuffer = device.acquireNextImageKHR( swapChainData.swapChain, vk::su::FenceTimeout, imageAcquiredSemaphore, nullptr );
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assert( currentBuffer.result == vk::Result::eSuccess );
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assert( currentBuffer.value < framebuffers.size() );
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std::array<vk::ClearValue, 2> clearValues;
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clearValues[0].color = vk::ClearColorValue( std::array<float, 4>( { { 0.2f, 0.2f, 0.2f, 0.2f } } ) );
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clearValues[1].depthStencil = vk::ClearDepthStencilValue( 1.0f, 0 );
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commandBuffer.begin( vk::CommandBufferBeginInfo( vk::CommandBufferUsageFlags() ) );
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vk::RenderPassBeginInfo renderPassBeginInfo(
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renderPass, framebuffers[currentBuffer.value], vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ), clearValues );
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commandBuffer.beginRenderPass( renderPassBeginInfo, vk::SubpassContents::eInline );
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commandBuffer.bindVertexBuffers( 0, vertexBuffer, { 0 } );
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commandBuffer.endRenderPass();
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commandBuffer.end();
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vk::su::submitAndWait( device, graphicsQueue, commandBuffer );
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device.destroySemaphore( imageAcquiredSemaphore );
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device.freeMemory( deviceMemory );
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device.destroyBuffer( vertexBuffer );
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/* VULKAN_KEY_END */
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swapChainData.clear( device );
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depthBufferData.clear( device );
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for ( auto const & framebuffer : framebuffers )
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{
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device.destroyFramebuffer( framebuffer );
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}
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device.destroyRenderPass( renderPass );
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device.freeCommandBuffers( commandPool, commandBuffer );
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device.destroyCommandPool( commandPool );
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device.destroy();
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instance.destroySurfaceKHR( surfaceData.surface );
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#if !defined( NDEBUG )
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instance.destroyDebugUtilsMessengerEXT( debugUtilsMessenger );
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#endif
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instance.destroy();
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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::exception & err )
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{
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std::cout << "std::exception: " << 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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