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core/rhi/buffer_vk.cpp

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+#include "buffer_vk.h"
+
+#include "utils/utils.hpp"
+
+buffer_vk::buffer_vk() {
+    buffer = nullptr;
+    memory = nullptr;
+    descriptor_type = vk::DescriptorType::eUniformBuffer;
+}
+
+void buffer_vk::create(uint32_t size, vk::BufferUsageFlagBits in_usage, vk::DescriptorType in_descriptor_type) {
+    destroy();
+    descriptor_type = in_descriptor_type;
+    const renderer* render_vk = application::get()->get_renderer();
+    const vk::Device& device = render_vk->device;
+
+    vk::BufferCreateInfo buffer_create_info;
+    buffer_create_info.setSize(size);
+    buffer_create_info.setUsage(in_usage);
+    buffer_create_info.setSharingMode(vk::SharingMode::eExclusive);
+    buffer = device.createBuffer(buffer_create_info);
+
+    const vk::PhysicalDeviceMemoryProperties memory_properties = render_vk->physical_device.getMemoryProperties();
+    const vk::MemoryRequirements memory_requirements = device.getBufferMemoryRequirements(buffer);
+    const auto memory_type = vk::su::findMemoryType(memory_properties, memory_requirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
+
+    vk::MemoryAllocateInfo memory_allocate_info;
+    memory_allocate_info.setAllocationSize(memory_requirements.size);
+    memory_allocate_info.setMemoryTypeIndex(memory_type);
+    memory = device.allocateMemory(memory_allocate_info);
+    device.bindBufferMemory(buffer, memory, 0);
+}
+
+void buffer_vk::create_storage(uint32_t size) {
+    create(size, vk::BufferUsageFlagBits::eStorageBuffer, vk::DescriptorType::eStorageBuffer);
+}
+
+void buffer_vk::create_uniform(uint32_t size) {
+    create(size, vk::BufferUsageFlagBits::eUniformBuffer, vk::DescriptorType::eUniformBuffer);
+}
+
+void buffer_vk::create_staging(uint32_t size) {
+    create(size, vk::BufferUsageFlagBits::eTransferSrc, vk::DescriptorType::eUniformBuffer);
+}
+
+void buffer_vk::destroy() const {
+    if (!buffer) {
+        return;
+    }
+    const renderer* render_vk = application::get()->get_renderer();
+    const vk::Device& device = render_vk->device;
+
+    device.destroyBuffer(buffer);
+    device.freeMemory(memory);
+}
+
+void buffer_vk::update(const void* data, uint32_t size) {
+    const auto p = map<void>();
+    memcpy(p, data, size);
+    unmap();
+}