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-rw-r--r--src/vk/view.cpp259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/vk/view.cpp b/src/vk/view.cpp
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+++ b/src/vk/view.cpp
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+/*
+ * Copyright 2022 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 "view.hpp"
+
+#include <array>
+
+#include "../core.hpp"
+
+namespace
+{
+
+void
+load_3d_uniform_buffer(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ try
+ {
+ self->ub_3d.reserve(cg_core.vk_swapchain->images_count);
+ for(auto i{0}; i < cg_core.vk_swapchain->images_count; i++)
+ self->ub_3d.emplace_back(
+ cg_core.vk_device_with_swapchain, sizeof(VK::UBOView3D));
+ }
+ catch(const std::exception& e)
+ {
+ throw CommandError{e.what()};
+ }
+}
+
+void
+unload_3d_uniform_buffer(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ self->ub_3d.clear();
+}
+
+void
+load_2d_uniform_buffer(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ try
+ {
+ self->ub_2d.reserve(cg_core.vk_swapchain->images_count);
+ for(auto i{0}; i < cg_core.vk_swapchain->images_count; i++)
+ self->ub_2d.emplace_back(
+ cg_core.vk_device_with_swapchain, sizeof(VK::UBOView2D));
+ }
+ catch(const std::exception& e)
+ {
+ throw CommandError{e.what()};
+ }
+}
+
+void
+unload_2d_uniform_buffer(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ self->ub_2d.clear();
+}
+
+void
+load_descriptor_pool(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ uint32_t uniform_buffer_count = self->ub_3d.size() + self->ub_2d.size();
+
+ VkDescriptorPoolSize descriptor_pool_size{};
+ descriptor_pool_size.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+ descriptor_pool_size.descriptorCount = uniform_buffer_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 = uniform_buffer_count;
+ pool_info.poolSizeCount = 1;
+ pool_info.pPoolSizes = &descriptor_pool_size;
+
+ if(vkCreateDescriptorPool(
+ cg_core.vk_device_with_swapchain->device, &pool_info, nullptr,
+ &self->descriptor_pool) != VK_SUCCESS)
+ throw CommandError{"Failed to create a Vulkan descriptor pool."};
+}
+
+void
+unload_descriptor_pool(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ vkDestroyDescriptorPool(
+ cg_core.vk_device_with_swapchain->device, self->descriptor_pool,
+ nullptr);
+}
+
+void
+load_descriptor_sets_3d(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ std::vector<VkDescriptorSetLayout> layouts(
+ cg_core.vk_swapchain->images_count,
+ cg_core.vk_graphics_pipeline_3d_layout->descriptor_set_view);
+
+ 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_3d.resize(layouts.size());
+ if(vkAllocateDescriptorSets(
+ cg_core.vk_device_with_swapchain->device, &alloc_info,
+ self->descriptor_sets_3d.data()) != VK_SUCCESS)
+ throw CommandError{"Failed to create Vulkan descriptor sets for view."};
+}
+
+void
+load_descriptor_sets_2d(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ std::vector<VkDescriptorSetLayout> layouts(
+ cg_core.vk_swapchain->images_count,
+ cg_core.vk_graphics_pipeline_2d_layout->descriptor_set_view);
+
+ 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_2d.resize(layouts.size());
+ if(vkAllocateDescriptorSets(
+ cg_core.vk_device_with_swapchain->device, &alloc_info,
+ self->descriptor_sets_2d.data()) != VK_SUCCESS)
+ throw CommandError{"Failed to create Vulkan descriptor sets for view."};
+}
+
+void
+load_resources_to_descriptor_sets_3d(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ for(auto i{0}; i < self->ub_3d.size(); i++)
+ {
+ VkDescriptorBufferInfo view_3d_info{};
+ view_3d_info.buffer = self->ub_3d[i].buffer;
+ view_3d_info.offset = 0;
+ view_3d_info.range = sizeof(VK::UBOView3D);
+
+ std::array<VkWriteDescriptorSet, 1> write_descriptors{};
+ write_descriptors[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+ write_descriptors[0].dstSet = self->descriptor_sets_3d[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 = &view_3d_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);
+
+ VK::UBOView3D ubo_view_3d;
+ ubo_view_3d.proj = glm::ortho(
+ 0.0f, self->region.z,
+ 0.0f, self->region.w,
+ 0.0f, 100.0f);
+ self->ub_3d[i].copy_data(&ubo_view_3d);
+ }
+}
+
+void
+load_resources_to_descriptor_sets_2d(void *obj)
+{
+ auto self = static_cast<VK::View*>(obj);
+
+ for(auto i{0}; i < self->ub_2d.size(); i++)
+ {
+ VkDescriptorBufferInfo view_2d_info{};
+ view_2d_info.buffer = self->ub_2d[i].buffer;
+ view_2d_info.offset = 0;
+ view_2d_info.range = sizeof(VK::UBOView2D);
+
+ std::array<VkWriteDescriptorSet, 1> write_descriptors{};
+ write_descriptors[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+ write_descriptors[0].dstSet = self->descriptor_sets_2d[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 = &view_2d_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);
+
+ VK::UBOView2D ubo_view_2d;
+ ubo_view_2d.proj = glm::ortho(
+ 0.0f, self->region.z,
+ 0.0f, self->region.w,
+ 0.0f, 100.0f);
+ self->ub_2d[i].copy_data(&ubo_view_2d);
+ }
+}
+
+const CommandChain loader{
+ {&load_3d_uniform_buffer, &unload_3d_uniform_buffer},
+ {&load_2d_uniform_buffer, &unload_2d_uniform_buffer},
+ {&load_descriptor_pool, &unload_descriptor_pool},
+ // By destroying the pool the sets are also destroyed.
+ {&load_descriptor_sets_3d, nullptr},
+ {&load_descriptor_sets_2d, nullptr},
+ {&load_resources_to_descriptor_sets_3d, nullptr},
+ {&load_resources_to_descriptor_sets_2d, nullptr}
+};
+
+}
+
+namespace VK
+{
+
+View::View(glm::vec4 region):
+ region{region},
+ camera_position{std::make_shared<glm::vec3>(0.0f, 0.0f, 0.0f)},
+ camera_rotation{std::make_shared<glm::vec3>(0.0f, 0.0f, 0.0f)},
+ sprites_to_draw{cg_core.vk_swapchain->images_count}
+{
+ loader.execute(this);
+}
+
+View::~View()
+{
+ loader.revert(this);
+}
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-18 14:31:42 +0000