Vulkan-Hpp/samples/InitTexture/InitTexture.cpp
Andreas Süßenbach 7900c655f3 Add samples SecondaryCommandBuffer and SeparateImageSampler. (#331)
+ made some helper functions more explicit.
2019-05-21 15:44:52 +02:00

167 lines
8.1 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 : InitTexture
// Initialize texture
#include "../utils/geometries.hpp"
#include "../utils/math.hpp"
#include "../utils/shaders.hpp"
#include "../utils/utils.hpp"
#include "vulkan/vulkan.hpp"
#include "SPIRV/GlslangToSpv.h"
#include <iostream>
static char const* AppName = "InitTexture";
static char const* EngineName = "Vulkan.hpp";
int main(int /*argc*/, char ** /*argv*/)
{
try
{
vk::UniqueInstance instance = vk::su::createInstance(AppName, EngineName, vk::su::getInstanceExtensions());
#if !defined(NDEBUG)
vk::UniqueDebugReportCallbackEXT debugReportCallback = vk::su::createDebugReportCallback(instance);
#endif
std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
assert(!physicalDevices.empty());
vk::su::SurfaceData surfaceData(instance, AppName, AppName, vk::Extent2D(50, 50));
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex = vk::su::findGraphicsAndPresentQueueFamilyIndex(physicalDevices[0], *surfaceData.surface);
vk::UniqueDevice device = vk::su::createDevice(physicalDevices[0], graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions());
vk::UniqueCommandPool commandPool = vk::su::createCommandPool(device, graphicsAndPresentQueueFamilyIndex.first);
std::vector<vk::UniqueCommandBuffer> commandBuffers = device->allocateCommandBuffersUnique(vk::CommandBufferAllocateInfo(commandPool.get(), vk::CommandBufferLevel::ePrimary, 1));
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 = physicalDevices[0].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::UniqueImage image = device->createImageUnique(vk::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, 0, nullptr, needsStaging ? vk::ImageLayout::eUndefined : vk::ImageLayout::ePreinitialized));
vk::MemoryRequirements memoryRequirements = device->getImageMemoryRequirements(image.get());
uint32_t memoryTypeIndex = vk::su::findMemoryType(physicalDevices[0].getMemoryProperties(), memoryRequirements.memoryTypeBits,
needsStaging ? vk::MemoryPropertyFlags() : (vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent));
// allocate memory
vk::UniqueDeviceMemory imageMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, memoryTypeIndex));
// bind memory
device->bindImageMemory(image.get(), imageMemory.get(), 0);
vk::UniqueBuffer textureBuffer;
vk::UniqueDeviceMemory textureBufferMemory;
if (needsStaging)
{
// Need a staging buffer to map and copy texture into
textureBuffer = device->createBufferUnique(vk::BufferCreateInfo(vk::BufferCreateFlags(), surfaceData.extent.width * surfaceData.extent.height * 4, vk::BufferUsageFlagBits::eTransferSrc));
memoryRequirements = device->getBufferMemoryRequirements(textureBuffer.get());
memoryTypeIndex = vk::su::findMemoryType(physicalDevices[0].getMemoryProperties(), memoryRequirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
// allocate memory
textureBufferMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, memoryTypeIndex));
// bind memory
device->bindBufferMemory(textureBuffer.get(), textureBufferMemory.get(), 0);
}
else
{
vk::SubresourceLayout subresourceLayout = device->getImageSubresourceLayout(image.get(), vk::ImageSubresource(vk::ImageAspectFlagBits::eColor));
}
void* data = device->mapMemory(needsStaging ? textureBufferMemory.get() : imageMemory.get(), 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.get() : imageMemory.get());
commandBuffers[0]->begin(vk::CommandBufferBeginInfo());
if (needsStaging)
{
// Since we're going to blit to the texture image, set its layout to eTransferDstOptimal
vk::su::setImageLayout(commandBuffers[0], image.get(), 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));
commandBuffers[0]->copyBufferToImage(textureBuffer.get(), image.get(), vk::ImageLayout::eTransferDstOptimal, copyRegion);
// Set the layout for the texture image from eTransferDstOptimal to SHADER_READ_ONLY
vk::su::setImageLayout(commandBuffers[0], image.get(), 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(commandBuffers[0], image.get(), format, vk::ImageLayout::ePreinitialized, vk::ImageLayout::eShaderReadOnlyOptimal);
}
commandBuffers[0]->end();
vk::su::submitAndWait(device, graphicsQueue, commandBuffers[0]);
vk::UniqueSampler sampler = device->createSamplerUnique(vk::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::ComponentMapping componentMapping(vk::ComponentSwizzle::eR, vk::ComponentSwizzle::eG, vk::ComponentSwizzle::eB, vk::ComponentSwizzle::eA);
vk::ImageViewCreateInfo imageViewCreateInfo(vk::ImageViewCreateFlags(), image.get(), vk::ImageViewType::e2D, format, componentMapping, vk::ImageSubresourceRange(vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1));
vk::UniqueImageView imageView = device->createImageViewUnique(imageViewCreateInfo);
/* VULKAN_KEY_END */
#if defined(VK_USE_PLATFORM_WIN32_KHR)
DestroyWindow(surfaceData.window);
#else
#pragma error "unhandled platform"
#endif
}
catch (vk::SystemError err)
{
std::cout << "vk::SystemError: " << err.what() << std::endl;
exit(-1);
}
catch (std::runtime_error err)
{
std::cout << "std::runtime_error: " << err.what() << std::endl;
exit(-1);
}
catch (...)
{
std::cout << "unknown error\n";
exit(-1);
}
return 0;
}