From 43821b0cffc5aa419c0218992f06f8962ae54a13 Mon Sep 17 00:00:00 2001
From: Frederico Linhares <fred@linhares.blue>
Date: Wed, 8 May 2024 17:56:29 -0300
Subject: refa Rename graphical engine to BluCat

---
 src/blucat/static_model.cpp | 165 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 src/blucat/static_model.cpp

(limited to 'src/blucat/static_model.cpp')

diff --git a/src/blucat/static_model.cpp b/src/blucat/static_model.cpp
new file mode 100644
index 0000000..e3c6482
--- /dev/null
+++ b/src/blucat/static_model.cpp
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2022-2024 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<BluCat::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(BluCat::UDOStaticModel));
+  }
+  catch(const std::exception& e)
+  {
+    throw CommandError{e.what()};
+  }
+}
+
+void
+unload_uniform_buffers(void *obj)
+{
+  auto self = static_cast<BluCat::StaticModel*>(obj);
+
+  self->uniform_buffers.clear();
+}
+
+void
+load_descriptor_set_pool(void *obj)
+{
+  auto self = static_cast<BluCat::StaticModel*>(obj);
+
+  std::array<VkDescriptorPoolSize, 1> descriptor_pool_sizes{};
+  descriptor_pool_sizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+  descriptor_pool_sizes[0].descriptorCount =
+    self->uniform_buffers.size();
+
+  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<BluCat::StaticModel*>(obj);
+
+  vkDestroyDescriptorPool(
+    self->static_mesh->queue_family->device->device, self->descriptor_pool,
+    nullptr);
+}
+
+void
+load_descriptor_sets(void *obj)
+{
+  auto self = static_cast<BluCat::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<BluCat::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(BluCat::UDOStaticModel);
+
+    std::array<VkWriteDescriptorSet, 1> 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;
+
+    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 BluCat
+{
+
+StaticModel::StaticModel(
+  std::shared_ptr<StaticMesh> static_mesh,
+  std::shared_ptr<Texture> texture, std::shared_ptr<glm::vec3> position,
+  std::shared_ptr<glm::quat> orientation):
+  static_mesh{static_mesh},
+  texture{texture},
+  position{position},
+  orientation{orientation}
+{
+  loader.execute(this);
+}
+
+StaticModel::~StaticModel()
+{
+  loader.revert(this);
+}
+
+}
-- 
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