buffers.cpp

Go to the documentation of this file.

/*
Copyright (c) 2024 Rahul Satish Vadhyar
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
 
#include "buffers.hpp"
#include "helper.hpp"
#include "engineStructs.hpp"
#include "logging.hpp"
void Chronos::Engine::Buffer::create(Chronos::Engine::Device device,
    VkBufferUsageFlags flags, VkMemoryPropertyFlags properties)
{
    this->device = device;
    Chronos::Engine::createBuffer(
    this->device, size, flags, properties, &buffer, &memory);
    LOG(2,
    "Buffer [" + std::to_string((uint64_t)this->buffer)
        + "] created for buffer object [" + std::to_string((uint64_t)this)
        + "]")
}
 
void Chronos::Engine::Buffer::copy(void* inputData, VkCommandPool commandPool)
{
    // copies the data to a staging buffer in order to copy to device buffer
    void* data;
    VkBuffer stagingBuffer;
    VkDeviceMemory stagingBufferMemory;
    Chronos::Engine::createBuffer(device, size,
    VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
    VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
    &stagingBuffer, &stagingBufferMemory);
    vkMapMemory(device.device, stagingBufferMemory, 0, size, 0, &data);
    memcpy(data, inputData, (size_t)size);
    vkUnmapMemory(device.device, stagingBufferMemory);
    Chronos::Engine::copyBuffer(
    device, stagingBuffer, buffer, size, commandPool);
    vkDestroyBuffer(device.device, stagingBuffer, nullptr);
    vkFreeMemory(device.device, stagingBufferMemory, nullptr);
    LOG(3,
    "Data [" + std::to_string((uint64_t)buffer)
        + "] copied to device buffer [" + std::to_string((uint64_t)buffer)
        + "]")
}
 
void Chronos::Engine::Buffer::destroy()
{
    vkDestroyBuffer(device.device, buffer, nullptr);
    vkFreeMemory(device.device, memory, nullptr);
    LOG(2,
    "Buffer [" + std::to_string((uint64_t)buffer)
        + "] destroyed on device ["
        + std::to_string((uint64_t)device.device) + "]")
}
 
void Chronos::Engine::UniformBuffer::create(Chronos::Engine::Device device)
{
    size = sizeof(UniformBufferObject);
    Buffer::create(device, VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
    VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT); // want to be visible to
                             // host and device
    vkMapMemory(device.device, memory, 0, size, 0, &data);
}
 
void Chronos::Engine::UniformBuffer::update(VkExtent2D swapChainExtent, float x,
    float y, float rotation, float x_size, float y_size)
{
    // This is where the shape parameters are updated
    UniformBufferObject ubo {};
    ubo.model = glm::translate(glm::mat4(1.0f), glm::vec3(y, -x, 0.0f));
    ubo.model = glm::rotate(
    ubo.model, glm::radians(rotation), glm::vec3(0.0f, 0.0f, 1.0f));
    ubo.model = glm::scale(ubo.model, glm::vec3(y_size, x_size, 1.0f));
    ubo.view = glm::lookAt(glm::vec3(0.0f, 0.0f, 0.1f),
    glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(1.0f, 0.0f, 0.0f));
    ubo.proj = glm::ortho(-1.0f, 1.0f,
    -(float)swapChainExtent.height / (float)swapChainExtent.width,
    (float)swapChainExtent.height / (float)swapChainExtent.width, -100.0f,
    100.0f);
    ubo.proj[1][1] *= -1;
    memcpy(data, &ubo, sizeof(ubo));
    LOG(4,
    "Uniform buffer object updated for buffer ["
        + std::to_string((uint64_t)buffer) + "]")
}
 
void Chronos::Engine::ColorBuffer::create(Chronos::Engine::Device device)
{
    size = sizeof(UniformColorBufferObject);
    Buffer::create(device, VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
    VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT); // want to be visible to
                             // host and device
    vkMapMemory(device.device, memory, 0, size, 0, &data);
    LOG(3,
    "Color buffer object created for buffer ["
        + std::to_string((uint64_t)buffer) + "]")
}
 
void Chronos::Engine::ColorBuffer::update(glm::vec3 color)
{
    // copy the color to the buffer
    UniformColorBufferObject ubo {};
    ubo.color = color;
    memcpy(data, &ubo, sizeof(ubo));
    LOG(4,
    "Color buffer object updated for buffer ["
        + std::to_string((uint64_t)buffer) + "]")
}