Buffer CreateUniformBuffer(PhysicalDevice physicalDevice)
{
var uniformBufferData = new AreaUniformBuffer {
width = surfaceCapabilities.CurrentExtent.Width,
height = surfaceCapabilities.CurrentExtent.Height
};
return(CreateBuffer(physicalDevice, uniformBufferData, BufferUsageFlags.UniformBuffer, typeof(AreaUniformBuffer)));
}
public void UpdateSize()
{
if (width == originalWidth)
{
width = originalWidth / 2;
height = originalHeight / 2;
}
else
{
width = originalWidth;
height = originalHeight;
}
var uniformBufferData = new AreaUniformBuffer(width, height);
var length = 1;
var size = System.Runtime.InteropServices.Marshal.SizeOf(typeof(AreaUniformBuffer)) * length;
VkDevice device = this.device; VkDeviceMemory deviceMemory = this.vkDeviceMemory;
{
IntPtr memPtr = IntPtr.Zero;
vkAPI.vkMapMemory(device, deviceMemory, 0, (UInt64)size, 0, &memPtr).Check();
System.Runtime.InteropServices.Marshal.StructureToPtr(uniformBufferData, memPtr, false);
//GCHandle pin = GCHandle.Alloc(uniformBufferData, GCHandleType.Pinned);
//IntPtr address = pin.AddrOfPinnedObject();
//var src = (byte*)address;
//var dst = (byte*)memPtr;
//for (int i = 0; i < size; i++) {
// dst[i] = src[i];
//}
//pin.Free();
//// Flush to make changes visible to the host
//var memoryRange = new VkMappedMemoryRange();
//{
// memoryRange.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
// memoryRange.memory = deviceMemory;
// memoryRange.size = this.uniformSize;
//}
//vkAPI.vkFlushMappedMemoryRanges(device, 1, &memoryRange);
vkAPI.vkUnmapMemory(device, deviceMemory);
}
}
public void Init(IntPtr hwnd, IntPtr processHandle)
{
if (this.isInitialized)
{
return;
}
this.instance = InitInstance();
InitDebugCallback(this.instance);
this.surface = InitSurface(this.instance, hwnd, processHandle);
this.vkPhysicalDevice = InitPhysicalDevice(this.instance);
VkSurfaceFormatKHR surfaceFormat = SelectFormat(this.vkPhysicalDevice, this.surface);
this.device = CreateDevice(this.vkPhysicalDevice, this.surface);
this.vkQueue = this.device.GetQueue(0, 0);
VkSurfaceCapabilitiesKHR surfaceCapabilities;
//this.vkPhysicalDevice.GetSurfaceCapabilitiesKhr(this.vkSurface, out surfaceCapabilities);
vkAPI.vkGetPhysicalDeviceSurfaceCapabilitiesKHR(this.vkPhysicalDevice, this.surface, &surfaceCapabilities).Check();
this.swapchain = CreateSwapchain(this.device, this.surface, surfaceFormat, surfaceCapabilities);
this.vkImages = this.device.GetSwapchainImages(this.swapchain);
this.renderPass = CreateRenderPass(this.device, surfaceFormat);
this.framebuffers = CreateFramebuffers(this.device, this.vkImages, surfaceFormat, this.renderPass, surfaceCapabilities);
this.vkFence = this.device.CreateFence();
this.vkSemaphore = this.device.CreateSemaphore();
// buffers for vertex data.
VkBuffer vertexBuffer = CreateBuffer(this.vkPhysicalDevice, this.device, Vertices, VkBufferUsageFlagBits.VertexBuffer, typeof(float));
VkBuffer indexBuffer = CreateBuffer(this.vkPhysicalDevice, this.device, Indexes, VkBufferUsageFlagBits.IndexBuffer, typeof(short));
var uniformBufferData = new AreaUniformBuffer(1, 1);
this.originalWidth = 1; this.width = this.originalWidth;
this.originalHeight = 1; this.height = this.originalHeight;
this.uniformBuffer = CreateBuffer(this.vkPhysicalDevice, this.device, uniformBufferData, VkBufferUsageFlagBits.UniformBuffer, typeof(AreaUniformBuffer));
this.descriptorSetLayout = CreateDescriptorSetLayout(this.device);
this.vkPipelineLayout = CreatePipelineLayout(this.device, this.descriptorSetLayout);
VkPipeline pipeline = CreatePipeline(this.device, surfaceCapabilities, this.renderPass, this.vkPipelineLayout);
this.descriptorSet = CreateDescriptorSet(this.device, this.descriptorSetLayout);
UpdateDescriptorSets(this.device, this.uniformBuffer, this.descriptorSet);
this.commandBuffers = CreateCommandBuffers(
this.device, this.renderPass, surfaceCapabilities,
this.vkImages, this.framebuffers, pipeline,
vertexBuffer, indexBuffer, (uint)Indexes.Length,
this.vkPipelineLayout, this.descriptorSet);
this.isInitialized = true;
}
