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/*
* Copyright 2022-2023 Frederico de Oliveira Linhares
*
* 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.
*/
#include "static_model.hpp"
#include "../core.hpp"
#include "uniform_data_object.hpp"
namespace
{
void
load_uniform_buffers(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
try
{
self->uniform_buffers.reserve(cg_core.vk_swapchain->images_count);
for(auto i{0}; i < cg_core.vk_swapchain->images_count; i++)
self->uniform_buffers.emplace_back(
cg_core.vk_device_with_swapchain, sizeof(VK::UDOStaticModel));
}
catch(const std::exception& e)
{
throw CommandError{e.what()};
}
}
void
unload_uniform_buffers(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
self->uniform_buffers.clear();
}
void
load_descriptor_set_pool(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
std::array<VkDescriptorPoolSize, 2> descriptor_pool_sizes{};
descriptor_pool_sizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor_pool_sizes[0].descriptorCount =
self->uniform_buffers.size();
descriptor_pool_sizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptor_pool_sizes[1].descriptorCount =
cg_core.vk_swapchain->images_count;
VkDescriptorPoolCreateInfo pool_info{};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info.pNext = nullptr;
pool_info.flags = 0;
pool_info.maxSets = self->uniform_buffers.size();
pool_info.poolSizeCount = descriptor_pool_sizes.size();
pool_info.pPoolSizes = descriptor_pool_sizes.data();
if(vkCreateDescriptorPool(
self->static_mesh->queue_family->device->device, &pool_info, nullptr,
&self->descriptor_pool) != VK_SUCCESS)
throw CommandError{"Failed to create a Vulkan descriptor pool."};
}
void
unload_descriptor_set_pool(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
vkDestroyDescriptorPool(
self->static_mesh->queue_family->device->device, self->descriptor_pool,
nullptr);
}
void
load_descriptor_sets(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
std::vector<VkDescriptorSetLayout> layouts(
cg_core.vk_swapchain->images_count,
cg_core.vk_descriptor_set_layout->model);
VkDescriptorSetAllocateInfo alloc_info{};
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = self->descriptor_pool;
alloc_info.descriptorSetCount = layouts.size();
alloc_info.pSetLayouts = layouts.data();
self->descriptor_sets.resize(layouts.size());
if(vkAllocateDescriptorSets(
self->static_mesh->queue_family->device->device, &alloc_info,
self->descriptor_sets.data()) != VK_SUCCESS)
CommandError{"Failed to create Vulkan descriptor set."};
}
void
load_buffers_to_descriptor_sets(void *obj)
{
auto self = static_cast<VK::StaticModel*>(obj);
for(auto i{0}; i < self->uniform_buffers.size(); i++)
{
VkDescriptorBufferInfo buffer_info{};
buffer_info.buffer = self->uniform_buffers[i].buffer;
buffer_info.offset = 0;
buffer_info.range = sizeof(VK::UDOStaticModel);
VkDescriptorImageInfo image_info{};
image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
image_info.imageView = self->texture->view;
image_info.sampler = self->texture->sampler;
std::array<VkWriteDescriptorSet, 2> write_descriptors{};
write_descriptors[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write_descriptors[0].dstSet = self->descriptor_sets[i];
write_descriptors[0].dstBinding = 0;
write_descriptors[0].dstArrayElement = 0;
write_descriptors[0].descriptorCount = 1;
write_descriptors[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
write_descriptors[0].pBufferInfo = &buffer_info;
write_descriptors[0].pImageInfo = nullptr;
write_descriptors[0].pTexelBufferView = nullptr;
write_descriptors[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write_descriptors[1].dstSet = self->descriptor_sets[i];
write_descriptors[1].dstBinding = 1;
write_descriptors[1].dstArrayElement = 0;
write_descriptors[1].descriptorCount = 1;
write_descriptors[1].descriptorType =
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
write_descriptors[1].pBufferInfo = nullptr;
write_descriptors[1].pImageInfo = &image_info;
write_descriptors[1].pTexelBufferView = nullptr;
vkUpdateDescriptorSets(
cg_core.vk_device_with_swapchain->device, write_descriptors.size(),
write_descriptors.data(), 0, nullptr);
}
}
static const CommandChain loader{
{&load_uniform_buffers, &unload_uniform_buffers},
{&load_descriptor_set_pool, &unload_descriptor_set_pool},
{&load_descriptor_sets, nullptr},
{&load_buffers_to_descriptor_sets, nullptr}
};
}
namespace VK
{
StaticModel::StaticModel(
std::shared_ptr<StaticMesh> static_mesh,
std::shared_ptr<Texture> texture, std::shared_ptr<glm::vec3> position,
std::shared_ptr<glm::vec3> rotation):
static_mesh{static_mesh},
texture{texture},
position{position},
rotation{rotation}
{
loader.execute(this);
}
StaticModel::~StaticModel()
{
loader.revert(this);
}
}
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