mirror of
https://github.com/KhronosGroup/Vulkan-Hpp
synced 2024-11-28 14:41:16 +00:00
295 lines
15 KiB
C++
295 lines
15 KiB
C++
// 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 : InputAttachment
|
|
// Use an input attachment to draw a yellow triangle
|
|
|
|
#if defined( _MSC_VER )
|
|
// no need to ignore any warnings with MSVC
|
|
#elif defined( __clang__ )
|
|
# pragma clang diagnostic ignored "-Wmissing-braces"
|
|
#elif defined( __GNUC__ )
|
|
// no need to ignore any warnings with GCC
|
|
#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"
|
|
|
|
#include <iostream>
|
|
#include <thread>
|
|
|
|
static char const * AppName = "InputAttachment";
|
|
static char const * EngineName = "Vulkan.hpp";
|
|
|
|
static std::string vertexShaderText = R"(
|
|
#version 450
|
|
|
|
vec2 vertices[3];
|
|
|
|
void main()
|
|
{
|
|
vertices[0] = vec2(-1.0f, -1.0f);
|
|
vertices[1] = vec2( 1.0f, -1.0f);
|
|
vertices[2] = vec2( 0.0f, 1.0f);
|
|
|
|
gl_Position = vec4(vertices[gl_VertexIndex % 3], 0.0f, 1.0f);
|
|
}
|
|
)";
|
|
|
|
// Use subpassLoad to read from input attachment
|
|
static const char * fragmentShaderText = R"(
|
|
#version 450
|
|
|
|
layout (input_attachment_index = 0, set = 0, binding = 0) uniform subpassInput inputAttachment;
|
|
|
|
layout (location = 0) out vec4 outColor;
|
|
|
|
void main()
|
|
{
|
|
outColor = subpassLoad(inputAttachment);
|
|
}
|
|
)";
|
|
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::FormatProperties formatProperties = physicalDevice.getFormatProperties( vk::Format::eR8G8B8A8Unorm );
|
|
if ( !( formatProperties.optimalTilingFeatures & vk::FormatFeatureFlagBits::eColorAttachment ) )
|
|
{
|
|
std::cout << "vk::Format::eR8G8B8A8Unorm format unsupported for input attachment\n";
|
|
exit( -1 );
|
|
}
|
|
|
|
vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
|
|
|
|
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 = vk::su::createCommandPool( device, 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 );
|
|
|
|
vk::su::SwapChainData swapChainData( physicalDevice,
|
|
device,
|
|
surfaceData.surface,
|
|
surfaceData.extent,
|
|
vk::ImageUsageFlagBits::eColorAttachment | vk::ImageUsageFlagBits::eTransferSrc,
|
|
{},
|
|
graphicsAndPresentQueueFamilyIndex.first,
|
|
graphicsAndPresentQueueFamilyIndex.second );
|
|
|
|
/* VULKAN_KEY_START */
|
|
|
|
// Create a framebuffer with 2 attachments, one the color attachment the shaders render into, and the other an input
|
|
// attachment which will be cleared to yellow, and then used by the shaders to color the drawn triangle. Final
|
|
// result should be a yellow triangle
|
|
|
|
// Create the image that will be used as the input attachment
|
|
// The image for the color attachment is the presentable image already created as part of the SwapChainData
|
|
vk::ImageCreateInfo imageCreateInfo( vk::ImageCreateFlags(),
|
|
vk::ImageType::e2D,
|
|
swapChainData.colorFormat,
|
|
vk::Extent3D( surfaceData.extent, 1 ),
|
|
1,
|
|
1,
|
|
vk::SampleCountFlagBits::e1,
|
|
vk::ImageTiling::eOptimal,
|
|
vk::ImageUsageFlagBits::eInputAttachment | vk::ImageUsageFlagBits::eTransferDst );
|
|
vk::Image inputImage = device.createImage( imageCreateInfo );
|
|
|
|
vk::MemoryRequirements memoryRequirements = device.getImageMemoryRequirements( inputImage );
|
|
uint32_t memoryTypeIndex = vk::su::findMemoryType( physicalDevice.getMemoryProperties(), memoryRequirements.memoryTypeBits, vk::MemoryPropertyFlags() );
|
|
vk::DeviceMemory inputMemory = device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
|
|
device.bindImageMemory( inputImage, inputMemory, 0 );
|
|
|
|
// Set the image layout to TRANSFER_DST_OPTIMAL to be ready for clear
|
|
commandBuffer.begin( vk::CommandBufferBeginInfo() );
|
|
vk::su::setImageLayout( commandBuffer, inputImage, swapChainData.colorFormat, vk::ImageLayout::eUndefined, vk::ImageLayout::eTransferDstOptimal );
|
|
|
|
commandBuffer.clearColorImage( inputImage,
|
|
vk::ImageLayout::eTransferDstOptimal,
|
|
vk::ClearColorValue( std::array<float, 4>( { { 1.0f, 1.0f, 0.0f, 0.0f } } ) ),
|
|
vk::ImageSubresourceRange( vk::ImageAspectFlagBits::eColor, 0, VK_REMAINING_MIP_LEVELS, 0, VK_REMAINING_ARRAY_LAYERS ) );
|
|
|
|
// Set the image layout to SHADER_READONLY_OPTIMAL for use by the shaders
|
|
vk::su::setImageLayout(
|
|
commandBuffer, inputImage, swapChainData.colorFormat, vk::ImageLayout::eTransferDstOptimal, vk::ImageLayout::eShaderReadOnlyOptimal );
|
|
|
|
vk::ImageViewCreateInfo imageViewCreateInfo(
|
|
{}, inputImage, vk::ImageViewType::e2D, swapChainData.colorFormat, {}, { vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 } );
|
|
vk::ImageView inputAttachmentView = device.createImageView( imageViewCreateInfo );
|
|
|
|
vk::DescriptorSetLayoutBinding layoutBinding( 0, vk::DescriptorType::eInputAttachment, 1, vk::ShaderStageFlagBits::eFragment );
|
|
vk::DescriptorSetLayout descriptorSetLayout =
|
|
device.createDescriptorSetLayout( vk::DescriptorSetLayoutCreateInfo( vk::DescriptorSetLayoutCreateFlags(), layoutBinding ) );
|
|
|
|
vk::PipelineLayout pipelineLayout = device.createPipelineLayout( vk::PipelineLayoutCreateInfo( vk::PipelineLayoutCreateFlags(), descriptorSetLayout ) );
|
|
|
|
std::array<vk::AttachmentDescription, 2> attachments = {
|
|
// First attachment is the color attachment - clear at the beginning of the renderpass and transition layout to
|
|
// PRESENT_SRC_KHR at the end of renderpass
|
|
vk::AttachmentDescription( vk::AttachmentDescriptionFlags(),
|
|
swapChainData.colorFormat,
|
|
vk::SampleCountFlagBits::e1,
|
|
vk::AttachmentLoadOp::eClear,
|
|
vk::AttachmentStoreOp::eStore,
|
|
vk::AttachmentLoadOp::eDontCare,
|
|
vk::AttachmentStoreOp::eDontCare,
|
|
vk::ImageLayout::eUndefined,
|
|
vk::ImageLayout::ePresentSrcKHR ),
|
|
// Second attachment is input attachment. Once cleared it should have width*height yellow pixels.
|
|
// Doing a subpassLoad in the fragment shader should give the shader the color at the fragments x,y location from
|
|
// the input attachment
|
|
vk::AttachmentDescription( vk::AttachmentDescriptionFlags(),
|
|
swapChainData.colorFormat,
|
|
vk::SampleCountFlagBits::e1,
|
|
vk::AttachmentLoadOp::eLoad,
|
|
vk::AttachmentStoreOp::eDontCare,
|
|
vk::AttachmentLoadOp::eDontCare,
|
|
vk::AttachmentStoreOp::eDontCare,
|
|
vk::ImageLayout::eShaderReadOnlyOptimal,
|
|
vk::ImageLayout::eShaderReadOnlyOptimal )
|
|
};
|
|
vk::AttachmentReference colorReference( 0, vk::ImageLayout::eColorAttachmentOptimal );
|
|
vk::AttachmentReference inputReference( 1, vk::ImageLayout::eShaderReadOnlyOptimal );
|
|
vk::SubpassDescription subPass( vk::SubpassDescriptionFlags(), vk::PipelineBindPoint::eGraphics, inputReference, colorReference );
|
|
vk::RenderPass renderPass = device.createRenderPass( vk::RenderPassCreateInfo( vk::RenderPassCreateFlags(), attachments, subPass ) );
|
|
|
|
glslang::InitializeProcess();
|
|
vk::ShaderModule vertexShaderModule = vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText );
|
|
vk::ShaderModule fragmentShaderModule = vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText );
|
|
glslang::FinalizeProcess();
|
|
|
|
std::vector<vk::Framebuffer> framebuffers =
|
|
vk::su::createFramebuffers( device, renderPass, swapChainData.imageViews, inputAttachmentView, surfaceData.extent );
|
|
|
|
vk::DescriptorPoolSize poolSize( vk::DescriptorType::eInputAttachment, 1 );
|
|
vk::DescriptorPool descriptorPool =
|
|
device.createDescriptorPool( vk::DescriptorPoolCreateInfo( vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet, 1, poolSize ) );
|
|
|
|
vk::DescriptorSetAllocateInfo descriptorSetAllocateInfo( descriptorPool, descriptorSetLayout );
|
|
vk::DescriptorSet descriptorSet = device.allocateDescriptorSets( descriptorSetAllocateInfo ).front();
|
|
|
|
vk::DescriptorImageInfo inputImageInfo( nullptr, inputAttachmentView, vk::ImageLayout::eShaderReadOnlyOptimal );
|
|
vk::WriteDescriptorSet writeDescriptorSet( descriptorSet, 0, 0, vk::DescriptorType::eInputAttachment, inputImageInfo );
|
|
device.updateDescriptorSets( writeDescriptorSet, nullptr );
|
|
|
|
vk::PipelineCache pipelineCache = device.createPipelineCache( vk::PipelineCacheCreateInfo() );
|
|
vk::Pipeline graphicsPipeline = vk::su::createGraphicsPipeline( device,
|
|
pipelineCache,
|
|
std::make_pair( vertexShaderModule, nullptr ),
|
|
std::make_pair( fragmentShaderModule, nullptr ),
|
|
0,
|
|
{},
|
|
vk::FrontFace::eClockwise,
|
|
false,
|
|
pipelineLayout,
|
|
renderPass );
|
|
|
|
vk::Semaphore imageAcquiredSemaphore = device.createSemaphore( vk::SemaphoreCreateInfo() );
|
|
|
|
vk::ResultValue<uint32_t> nexImage =
|
|
device.acquireNextImage2KHR( vk::AcquireNextImageInfoKHR( swapChainData.swapChain, UINT64_MAX, imageAcquiredSemaphore, {}, 1 ) );
|
|
assert( nexImage.result == vk::Result::eSuccess );
|
|
uint32_t currentBuffer = nexImage.value;
|
|
|
|
vk::ClearValue clearValue;
|
|
clearValue.color = vk::ClearColorValue( std::array<float, 4>( { { 0.2f, 0.2f, 0.2f, 0.2f } } ) );
|
|
commandBuffer.beginRenderPass(
|
|
vk::RenderPassBeginInfo( renderPass, framebuffers[currentBuffer], vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ), clearValue ),
|
|
vk::SubpassContents::eInline );
|
|
commandBuffer.bindPipeline( vk::PipelineBindPoint::eGraphics, graphicsPipeline );
|
|
commandBuffer.bindDescriptorSets( vk::PipelineBindPoint::eGraphics, pipelineLayout, 0, descriptorSet, nullptr );
|
|
|
|
commandBuffer.setViewport(
|
|
0, vk::Viewport( 0.0f, 0.0f, static_cast<float>( surfaceData.extent.width ), static_cast<float>( surfaceData.extent.height ), 0.0f, 1.0f ) );
|
|
commandBuffer.setScissor( 0, vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ) );
|
|
|
|
commandBuffer.draw( 3, 1, 0, 0 );
|
|
commandBuffer.endRenderPass();
|
|
commandBuffer.end();
|
|
|
|
/* VULKAN_KEY_END */
|
|
|
|
vk::su::submitAndWait( device, graphicsQueue, commandBuffer );
|
|
|
|
vk::Result result = presentQueue.presentKHR( vk::PresentInfoKHR( {}, swapChainData.swapChain, currentBuffer ) );
|
|
switch ( result )
|
|
{
|
|
case vk::Result::eSuccess: break;
|
|
case vk::Result::eSuboptimalKHR: std::cout << "vk::Queue::presentKHR returned vk::Result::eSuboptimalKHR !\n"; break;
|
|
default: assert( false ); // an unexpected result is returned !
|
|
}
|
|
std::this_thread::sleep_for( std::chrono::milliseconds( 1000 ) );
|
|
|
|
device.destroySemaphore( imageAcquiredSemaphore );
|
|
device.destroyPipeline( graphicsPipeline );
|
|
device.destroyPipelineCache( pipelineCache );
|
|
device.freeDescriptorSets( descriptorPool, descriptorSet );
|
|
device.destroyDescriptorPool( descriptorPool );
|
|
for ( auto framebuffer : framebuffers )
|
|
{
|
|
device.destroyFramebuffer( framebuffer );
|
|
}
|
|
device.destroyShaderModule( fragmentShaderModule );
|
|
device.destroyShaderModule( vertexShaderModule );
|
|
device.destroyRenderPass( renderPass );
|
|
device.destroyPipelineLayout( pipelineLayout );
|
|
device.destroyDescriptorSetLayout( descriptorSetLayout );
|
|
device.destroyImageView( inputAttachmentView );
|
|
device.freeMemory( inputMemory );
|
|
device.destroyImage( inputImage );
|
|
swapChainData.clear( device );
|
|
device.freeCommandBuffers( commandPool, commandBuffer );
|
|
device.destroyCommandPool( commandPool );
|
|
device.destroy();
|
|
instance.destroySurfaceKHR( surfaceData.surface );
|
|
#if !defined( NDEBUG )
|
|
instance.destroyDebugUtilsMessengerEXT( debugUtilsMessenger );
|
|
#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;
|
|
}
|