mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
209 lines
9.7 KiB
C++
209 lines
9.7 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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#if defined( _MSC_VER )
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// no need to ignore any warnings with MSVC
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#elif defined( __clang__ )
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# pragma clang diagnostic ignored "-Wunused-variable"
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#elif defined( __GNUC__ )
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# pragma GCC diagnostic ignored "-Wunused-but-set-variable"
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#else
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// unknow compiler... just ignore the warnings for yourselves ;)
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#endif
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#include "../samples/utils/geometries.hpp"
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#include "../samples/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 "glslang/Public/ShaderLang.h"
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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::raii::Context context;
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vk::raii::Instance instance = vk::raii::su::makeInstance( context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
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#if !defined( NDEBUG )
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vk::raii::DebugUtilsMessengerEXT debugUtilsMessenger( instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
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#endif
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vk::raii::PhysicalDevice physicalDevice = vk::raii::PhysicalDevices( instance ).front();
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vk::raii::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::raii::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
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vk::raii::Device device = vk::raii::su::makeDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
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vk::raii::CommandPool commandPool = vk::raii::CommandPool( device, { {}, graphicsAndPresentQueueFamilyIndex.first } );
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vk::raii::CommandBuffer commandBuffer = vk::raii::su::makeCommandBuffer( device, commandPool );
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vk::raii::Queue graphicsQueue( device, graphicsAndPresentQueueFamilyIndex.first, 0 );
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vk::raii::Queue presentQueue( device, 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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// in order to get a clean desctruction sequence, instantiate the DeviceMemory for the image first
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vk::raii::DeviceMemory imageMemory( nullptr );
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vk::ImageCreateInfo imageCreateInfo( {},
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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 | ( needsStaging ? vk::ImageUsageFlagBits::eTransferDst : vk::ImageUsageFlagBits() ),
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vk::SharingMode::eExclusive,
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{},
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needsStaging ? vk::ImageLayout::eUndefined : vk::ImageLayout::ePreinitialized );
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vk::raii::Image image( device, imageCreateInfo );
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vk::MemoryRequirements memoryRequirements = image.getMemoryRequirements();
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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() : ( vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent ) );
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// allocate memory
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vk::MemoryAllocateInfo memoryAllocateInfo( memoryRequirements.size, memoryTypeIndex );
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imageMemory = vk::raii::DeviceMemory( device, memoryAllocateInfo );
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// bind memory
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image.bindMemory( imageMemory, 0 );
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vk::raii::Buffer textureBuffer = nullptr;
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vk::raii::DeviceMemory textureBufferMemory = nullptr;
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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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vk::BufferCreateInfo bufferCreateInfo( {}, surfaceData.extent.width * surfaceData.extent.height * 4, vk::BufferUsageFlagBits::eTransferSrc );
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textureBuffer = vk::raii::Buffer( device, bufferCreateInfo );
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memoryRequirements = textureBuffer.getMemoryRequirements();
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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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// allocate memory
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memoryAllocateInfo = vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex );
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textureBufferMemory = vk::raii::DeviceMemory( device, memoryAllocateInfo );
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// bind memory
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textureBuffer.bindMemory( textureBufferMemory, 0 );
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}
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else
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{
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vk::SubresourceLayout subresourceLayout = image.getSubresourceLayout( vk::ImageSubresource( vk::ImageAspectFlagBits::eColor ) );
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}
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void * data = needsStaging ? textureBufferMemory.mapMemory( 0, memoryRequirements.size, vk::MemoryMapFlags() )
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: imageMemory.mapMemory( 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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needsStaging ? textureBufferMemory.unmapMemory() : imageMemory.unmapMemory();
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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::raii::su::setImageLayout( commandBuffer, image, 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( textureBuffer, image, 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::raii::su::setImageLayout( commandBuffer, image, format, vk::ImageLayout::eTransferDstOptimal, 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::raii::su::setImageLayout( commandBuffer, image, format, vk::ImageLayout::ePreinitialized, vk::ImageLayout::eShaderReadOnlyOptimal );
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}
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commandBuffer.end();
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vk::raii::su::submitAndWait( device, graphicsQueue, commandBuffer );
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vk::SamplerCreateInfo samplerCreateInfo( {},
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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::raii::Sampler sampler( device, samplerCreateInfo );
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vk::ImageViewCreateInfo imageViewCreateInfo( {}, image, vk::ImageViewType::e2D, format, {}, { vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 } );
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vk::raii::ImageView imageView( device, 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::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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