Adding helper function for filling buffers

[Krenodeno]

Hi, There are several use of the same little piece of code in the case of filling buffer with data, like for staging vertex buffers, uniform buffers and image buffers...

void* data;
vkMapMemory(device, stagingBufferMemory, 0, size, 0, &data);
    memcpy(data, pixels, static_cast<size_t>(size));
vkUnmapMemory(device, stagingBufferMemory);

Why not creating a little helper for that matter ? It could look like this:

void fillBuffer(VkDeviceMemory& memory, const void* dataToCopy, VkDeviceSize size) {
    void* data;
    VkMapMemory(device, memory, /*offset*/ 0, size, 0, &data);
        std::memcpy(data, dataToCopy, static_cast<size_t>(size));
    VkUnmapMemory(device, memory);
}

[Overv]

Sure, it's possible to create a helper for things like this but I don't think it's worth mentioning in the tutorial.

[Krenodeno]

The main reason for me is reducing code duplication, and it's quite convenient. But if it's not worth mentioning, I'll just close the issue. Thank you.

[Overv]

I didn't intend to come across as rude but instructions about code style are somewhat outside the scope of the tutorial, which is also why the code is one big C++ file. It's more about understanding the Vulkan API and interacting with it.

[Krenodeno]

I get your point, no problem. By the way, the tutorial is great, you do a great job.