mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
222 lines
10 KiB
C++
222 lines
10 KiB
C++
// 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 : InitTexture
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// Initialize texture
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#include "../utils/geometries.hpp"
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#include "../utils/math.hpp"
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#include "../utils/shaders.hpp"
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#include "../utils/utils.hpp"
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#include "SPIRV/GlslangToSpv.h"
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#include "vulkan/vulkan.hpp"
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#include <iostream>
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static char const * AppName = "InitTexture";
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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, {}, vk::su::getInstanceExtensions() );
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#if !defined( NDEBUG )
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vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger( instance );
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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( 50, 50 ) );
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std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
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vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, *surfaceData.surface );
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vk::UniqueDevice device =
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vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
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vk::UniqueCommandPool commandPool = vk::su::createCommandPool( device, graphicsAndPresentQueueFamilyIndex.first );
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vk::UniqueCommandBuffer commandBuffer = std::move( device
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->allocateCommandBuffersUnique( vk::CommandBufferAllocateInfo(
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commandPool.get(), vk::CommandBufferLevel::ePrimary, 1 ) )
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.front() );
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vk::Queue graphicsQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.first, 0 );
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vk::Queue presentQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.second, 0 );
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/* VULKAN_KEY_START */
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vk::Format format = vk::Format::eR8G8B8A8Unorm;
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vk::FormatProperties formatProperties = physicalDevice.getFormatProperties( format );
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// See if we can use a linear tiled image for a texture, if not, we will need a staging buffer for the texture data
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bool needsStaging = !( formatProperties.linearTilingFeatures & vk::FormatFeatureFlagBits::eSampledImage );
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vk::UniqueImage image = device->createImageUnique(
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vk::ImageCreateInfo( vk::ImageCreateFlags(),
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vk::ImageType::e2D,
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format,
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vk::Extent3D( surfaceData.extent, 1 ),
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1,
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1,
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vk::SampleCountFlagBits::e1,
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needsStaging ? vk::ImageTiling::eOptimal : vk::ImageTiling::eLinear,
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vk::ImageUsageFlagBits::eSampled |
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( needsStaging ? vk::ImageUsageFlagBits::eTransferDst : vk::ImageUsageFlagBits() ),
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vk::SharingMode::eExclusive,
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0,
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nullptr,
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needsStaging ? vk::ImageLayout::eUndefined : vk::ImageLayout::ePreinitialized ) );
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vk::MemoryRequirements memoryRequirements = device->getImageMemoryRequirements( image.get() );
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uint32_t memoryTypeIndex = vk::su::findMemoryType(
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physicalDevice.getMemoryProperties(),
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memoryRequirements.memoryTypeBits,
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needsStaging ? vk::MemoryPropertyFlags()
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: ( vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent ) );
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// allocate memory
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vk::UniqueDeviceMemory imageMemory =
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device->allocateMemoryUnique( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
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// bind memory
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device->bindImageMemory( image.get(), imageMemory.get(), 0 );
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vk::UniqueBuffer textureBuffer;
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vk::UniqueDeviceMemory textureBufferMemory;
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if ( needsStaging )
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{
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// Need a staging buffer to map and copy texture into
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textureBuffer =
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device->createBufferUnique( vk::BufferCreateInfo( vk::BufferCreateFlags(),
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surfaceData.extent.width * surfaceData.extent.height * 4,
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vk::BufferUsageFlagBits::eTransferSrc ) );
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memoryRequirements = device->getBufferMemoryRequirements( textureBuffer.get() );
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memoryTypeIndex =
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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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// allocate memory
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textureBufferMemory =
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device->allocateMemoryUnique( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
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// bind memory
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device->bindBufferMemory( textureBuffer.get(), textureBufferMemory.get(), 0 );
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}
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else
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{
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vk::SubresourceLayout subresourceLayout =
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device->getImageSubresourceLayout( image.get(), vk::ImageSubresource( vk::ImageAspectFlagBits::eColor ) );
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}
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void * data = device->mapMemory(
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needsStaging ? textureBufferMemory.get() : imageMemory.get(), 0, memoryRequirements.size, vk::MemoryMapFlags() );
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// Checkerboard of 16x16 pixel squares
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unsigned char * pImageMemory = static_cast<unsigned char *>( data );
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for ( uint32_t row = 0; row < surfaceData.extent.height; row++ )
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{
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for ( uint32_t col = 0; col < surfaceData.extent.width; col++ )
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{
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unsigned char rgb = ( ( ( row & 0x10 ) == 0 ) ^ ( ( col & 0x10 ) == 0 ) ) * 255;
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pImageMemory[0] = rgb;
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pImageMemory[1] = rgb;
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pImageMemory[2] = rgb;
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pImageMemory[3] = 255;
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pImageMemory += 4;
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}
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}
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device->unmapMemory( needsStaging ? textureBufferMemory.get() : imageMemory.get() );
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commandBuffer->begin( vk::CommandBufferBeginInfo() );
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if ( needsStaging )
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{
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// Since we're going to blit to the texture image, set its layout to eTransferDstOptimal
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vk::su::setImageLayout(
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commandBuffer, image.get(), format, vk::ImageLayout::eUndefined, vk::ImageLayout::eTransferDstOptimal );
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vk::BufferImageCopy copyRegion( 0,
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surfaceData.extent.width,
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surfaceData.extent.height,
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vk::ImageSubresourceLayers( vk::ImageAspectFlagBits::eColor, 0, 0, 1 ),
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vk::Offset3D( 0, 0, 0 ),
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vk::Extent3D( surfaceData.extent, 1 ) );
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commandBuffer->copyBufferToImage(
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textureBuffer.get(), image.get(), vk::ImageLayout::eTransferDstOptimal, copyRegion );
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// Set the layout for the texture image from eTransferDstOptimal to SHADER_READ_ONLY
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vk::su::setImageLayout( commandBuffer,
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image.get(),
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format,
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vk::ImageLayout::eTransferDstOptimal,
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vk::ImageLayout::eShaderReadOnlyOptimal );
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}
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else
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{
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// If we can use the linear tiled image as a texture, just do it
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vk::su::setImageLayout(
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commandBuffer, image.get(), format, vk::ImageLayout::ePreinitialized, vk::ImageLayout::eShaderReadOnlyOptimal );
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}
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commandBuffer->end();
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vk::su::submitAndWait( device, graphicsQueue, commandBuffer );
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vk::UniqueSampler sampler =
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device->createSamplerUnique( vk::SamplerCreateInfo( vk::SamplerCreateFlags(),
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vk::Filter::eNearest,
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vk::Filter::eNearest,
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vk::SamplerMipmapMode::eNearest,
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vk::SamplerAddressMode::eClampToEdge,
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vk::SamplerAddressMode::eClampToEdge,
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vk::SamplerAddressMode::eClampToEdge,
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0.0f,
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false,
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1.0f,
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false,
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vk::CompareOp::eNever,
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0.0f,
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0.0f,
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vk::BorderColor::eFloatOpaqueWhite ) );
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vk::ComponentMapping componentMapping(
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vk::ComponentSwizzle::eR, vk::ComponentSwizzle::eG, vk::ComponentSwizzle::eB, vk::ComponentSwizzle::eA );
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vk::ImageViewCreateInfo imageViewCreateInfo(
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vk::ImageViewCreateFlags(),
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image.get(),
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vk::ImageViewType::e2D,
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format,
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componentMapping,
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vk::ImageSubresourceRange( vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 ) );
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vk::UniqueImageView imageView = device->createImageViewUnique( imageViewCreateInfo );
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/* VULKAN_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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