Vulkan-Hpp/samples/InitTexture/InitTexture.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 : InitTexture
// Initialize texture
#if defined( _MSC_VER )
// no need to ignore any warnings with MSVC
#elif defined( __clang__ )
# pragma clang diagnostic ignored "-Wunused-variable"
#elif defined( __GNUC__ )
# pragma GCC diagnostic ignored "-Wunused-but-set-variable"
#else
// unknow compiler... just ignore the warnings for yourselves ;)
#endif
#include "../utils/geometries.hpp"
#include "../utils/math.hpp"
#include "../utils/shaders.hpp"
#include "../utils/utils.hpp"
#include "SPIRV/GlslangToSpv.h"
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#include "glslang/Public/ShaderLang.h"
#include <iostream>
static char const * AppName = "InitTexture";
static char const * EngineName = "Vulkan.hpp";
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
vk::Instance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions() );
#if !defined( NDEBUG )
vk::DebugUtilsMessengerEXT debugUtilsMessenger = instance.createDebugUtilsMessengerEXT( vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
#endif
vk::PhysicalDevice physicalDevice = instance.enumeratePhysicalDevices().front();
vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 50, 50 ) );
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex = vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
vk::Device device = vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
vk::CommandPool commandPool = device.createCommandPool( { {}, graphicsAndPresentQueueFamilyIndex.first } );
vk::CommandBuffer commandBuffer =
device.allocateCommandBuffers( vk::CommandBufferAllocateInfo( commandPool, vk::CommandBufferLevel::ePrimary, 1 ) ).front();
vk::Queue graphicsQueue = device.getQueue( graphicsAndPresentQueueFamilyIndex.first, 0 );
vk::Queue presentQueue = device.getQueue( graphicsAndPresentQueueFamilyIndex.second, 0 );
/* VULKAN_KEY_START */
vk::Format format = vk::Format::eR8G8B8A8Unorm;
vk::FormatProperties formatProperties = physicalDevice.getFormatProperties( format );
// See if we can use a linear tiled image for a texture, if not, we will need a staging buffer for the texture data
bool needsStaging = !( formatProperties.linearTilingFeatures & vk::FormatFeatureFlagBits::eSampledImage );
vk::ImageCreateInfo imageCreateInfo( vk::ImageCreateFlags(),
vk::ImageType::e2D,
format,
vk::Extent3D( surfaceData.extent, 1 ),
1,
1,
vk::SampleCountFlagBits::e1,
needsStaging ? vk::ImageTiling::eOptimal : vk::ImageTiling::eLinear,
vk::ImageUsageFlagBits::eSampled | ( needsStaging ? vk::ImageUsageFlagBits::eTransferDst : vk::ImageUsageFlagBits() ),
vk::SharingMode::eExclusive,
{},
needsStaging ? vk::ImageLayout::eUndefined : vk::ImageLayout::ePreinitialized );
vk::Image image = device.createImage( imageCreateInfo );
vk::MemoryRequirements memoryRequirements = device.getImageMemoryRequirements( image );
uint32_t memoryTypeIndex = vk::su::findMemoryType(
physicalDevice.getMemoryProperties(),
memoryRequirements.memoryTypeBits,
needsStaging ? vk::MemoryPropertyFlags() : ( vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent ) );
// allocate memory
vk::DeviceMemory imageMemory = device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
// bind memory
device.bindImageMemory( image, imageMemory, 0 );
vk::Buffer textureBuffer;
vk::DeviceMemory textureBufferMemory;
if ( needsStaging )
{
// Need a staging buffer to map and copy texture into
textureBuffer = device.createBuffer(
vk::BufferCreateInfo( vk::BufferCreateFlags(), surfaceData.extent.width * surfaceData.extent.height * 4, vk::BufferUsageFlagBits::eTransferSrc ) );
memoryRequirements = device.getBufferMemoryRequirements( textureBuffer );
memoryTypeIndex = vk::su::findMemoryType( physicalDevice.getMemoryProperties(),
memoryRequirements.memoryTypeBits,
vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent );
// allocate memory
textureBufferMemory = device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
// bind memory
device.bindBufferMemory( textureBuffer, textureBufferMemory, 0 );
}
else
{
vk::SubresourceLayout subresourceLayout = device.getImageSubresourceLayout( image, vk::ImageSubresource( vk::ImageAspectFlagBits::eColor ) );
}
void * data = device.mapMemory( needsStaging ? textureBufferMemory : imageMemory, 0, memoryRequirements.size, vk::MemoryMapFlags() );
// Checkerboard of 16x16 pixel squares
unsigned char * pImageMemory = static_cast<unsigned char *>( data );
for ( uint32_t row = 0; row < surfaceData.extent.height; row++ )
{
for ( uint32_t col = 0; col < surfaceData.extent.width; col++ )
{
unsigned char rgb = ( ( ( row & 0x10 ) == 0 ) ^ ( ( col & 0x10 ) == 0 ) ) * 255;
pImageMemory[0] = rgb;
pImageMemory[1] = rgb;
pImageMemory[2] = rgb;
pImageMemory[3] = 255;
pImageMemory += 4;
}
}
device.unmapMemory( needsStaging ? textureBufferMemory : imageMemory );
commandBuffer.begin( vk::CommandBufferBeginInfo() );
if ( needsStaging )
{
// Since we're going to blit to the texture image, set its layout to eTransferDstOptimal
vk::su::setImageLayout( commandBuffer, image, format, vk::ImageLayout::eUndefined, vk::ImageLayout::eTransferDstOptimal );
vk::BufferImageCopy copyRegion( 0,
surfaceData.extent.width,
surfaceData.extent.height,
vk::ImageSubresourceLayers( vk::ImageAspectFlagBits::eColor, 0, 0, 1 ),
vk::Offset3D( 0, 0, 0 ),
vk::Extent3D( surfaceData.extent, 1 ) );
commandBuffer.copyBufferToImage( textureBuffer, image, vk::ImageLayout::eTransferDstOptimal, copyRegion );
// Set the layout for the texture image from eTransferDstOptimal to SHADER_READ_ONLY
vk::su::setImageLayout( commandBuffer, image, format, vk::ImageLayout::eTransferDstOptimal, vk::ImageLayout::eShaderReadOnlyOptimal );
}
else
{
// If we can use the linear tiled image as a texture, just do it
vk::su::setImageLayout( commandBuffer, image, format, vk::ImageLayout::ePreinitialized, vk::ImageLayout::eShaderReadOnlyOptimal );
}
commandBuffer.end();
vk::su::submitAndWait( device, graphicsQueue, commandBuffer );
vk::SamplerCreateInfo samplerCreateInfo( vk::SamplerCreateFlags(),
vk::Filter::eNearest,
vk::Filter::eNearest,
vk::SamplerMipmapMode::eNearest,
vk::SamplerAddressMode::eClampToEdge,
vk::SamplerAddressMode::eClampToEdge,
vk::SamplerAddressMode::eClampToEdge,
0.0f,
false,
1.0f,
false,
vk::CompareOp::eNever,
0.0f,
0.0f,
vk::BorderColor::eFloatOpaqueWhite );
vk::Sampler sampler = device.createSampler( samplerCreateInfo );
vk::ImageViewCreateInfo imageViewCreateInfo( {}, image, vk::ImageViewType::e2D, format, {}, { vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 } );
vk::ImageView imageView = device.createImageView( imageViewCreateInfo );
/* VULKAN_KEY_END */
device.destroyImageView( imageView );
device.destroySampler( sampler );
device.freeMemory( textureBufferMemory );
device.destroyBuffer( textureBuffer );
device.destroyImage( image ); // destroy the image before the bound device memory to prevent some validation layer warning
device.freeMemory( imageMemory );
device.freeCommandBuffers( commandPool, commandBuffer );
device.destroyCommandPool( commandPool );
device.destroy();
instance.destroySurfaceKHR( surfaceData.surface );
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#if !defined( NDEBUG )
instance.destroyDebugUtilsMessengerEXT( debugUtilsMessenger );
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#endif
instance.destroy();
}
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;
}