private void createVertexBuffer()
{
VkBufferCreateInfo bufferInfo = new VkBufferCreateInfo();
bufferInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = Marshal.SizeOf(vertices[0]) * vertices.Length;
bufferInfo.usage = VkBufferUsageFlagBits.VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
bufferInfo.sharingMode = VkSharingMode.VK_SHARING_MODE_EXCLUSIVE;
VkResult result = Vulkan.vkCreateBuffer(device, bufferInfo, null, out vertexBuffer);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to create vertex buffer!", result);
}
VkMemoryRequirements memRequirements;
Vulkan.vkGetBufferMemoryRequirements(device, vertexBuffer, out memRequirements);
VkMemoryAllocateInfo allocInfo = new VkMemoryAllocateInfo();
allocInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, VkMemoryPropertyFlagBits.VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VkMemoryPropertyFlagBits.VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
result = Vulkan.vkAllocateMemory(device, allocInfo, null, out vertexBufferMemory);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to allocate vertex buffer memory!", result);
}
Vulkan.vkBindBufferMemory(device, vertexBuffer, vertexBufferMemory, 0);
byte[] data;
Vulkan.vkMapMemory(device, vertexBufferMemory, 0, bufferInfo.size, 0, out data);
MemoryCopyHelper.Copy(vertices, data, 0, bufferInfo.size);
Vulkan.vkUnmapMemory(device, vertexBufferMemory);
}
