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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 "base_buffer.hpp"
namespace VK
{
const CommandChain BaseBuffer::loader{
{&BaseBuffer::load_buffer, &BaseBuffer::unload_buffer},
{&BaseBuffer::load_memory, &BaseBuffer::unload_memory}
};
void
BaseBuffer::load_buffer(void *obj)
{
auto self = static_cast<BaseBuffer*>(obj);
VkBufferCreateInfo buffer_info = {};
buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buffer_info.pNext = nullptr;
buffer_info.flags = 0;
buffer_info.size = self->device_size;
buffer_info.usage = self->buffer_usage;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
buffer_info.queueFamilyIndexCount = 0;
buffer_info.pQueueFamilyIndices = nullptr;
if(vkCreateBuffer(
self->device->device, &buffer_info, nullptr, &self->buffer)
!= VK_SUCCESS)
throw CommandError{"Failed to create vertex buffer."};
}
void
BaseBuffer::unload_buffer(void *obj)
{
auto self = static_cast<BaseBuffer*>(obj);
if(self->buffer != VK_NULL_HANDLE)
vkDestroyBuffer(self->device->device, self->buffer, nullptr);
}
void
BaseBuffer::load_memory(void *obj)
{
auto self = static_cast<BaseBuffer*>(obj);
VkMemoryRequirements memory_requirements;
vkGetBufferMemoryRequirements(
self->device->device, self->buffer, &memory_requirements);
VkPhysicalDeviceMemoryProperties memory_properties;
vkGetPhysicalDeviceMemoryProperties(
self->device->physical_device, &memory_properties);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.pNext = nullptr;
alloc_info.allocationSize = memory_requirements.size;
if(!self->device->select_memory_type(
&alloc_info.memoryTypeIndex, &memory_requirements,
self->memory_properties))
throw CommandError{"Could not allocate memory for Vulkan vertex buffer."};
if(vkAllocateMemory(self->device->device, &alloc_info, nullptr,
&self->device_memory) != VK_SUCCESS)
throw CommandError{"Could not allocate memory for Vulkan vertex buffer."};
vkBindBufferMemory(
self->device->device, self->buffer, self->device_memory, 0);
}
void
BaseBuffer::unload_memory(void *obj)
{
auto self = static_cast<BaseBuffer*>(obj);
if(self->device_memory != VK_NULL_HANDLE)
vkFreeMemory(self->device->device, self->device_memory, nullptr);
}
}
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