public Triangle()
{
InitializeComponent();
InitializeVulkan();
_Bitmap = new Bitmap(640, 480);
_Framebuffer = new Framebuffer(_Device, 640, 480);
VkPipelineLayout dummyLayout = _Device.CreatePipelineLayout(VkPipelineLayoutCreateFlag.NONE, null, null);
_VertexShader = _Device.CreateShaderModule(VkShaderModuleCreateFlag.NONE, System.IO.File.ReadAllBytes("./Shaders/vertexShader.spv"));
_FramgemtShader = _Device.CreateShaderModule(VkShaderModuleCreateFlag.NONE, System.IO.File.ReadAllBytes("./Shaders/fragmentShader.spv"));
_GraphicsPipeline = new Pipeline(_Framebuffer, dummyLayout, _VertexShader, "main", _FramgemtShader, "main");
// Finally we will need a fence for our submission in order to wait on it
_Fence = _Device.CreateFence(VkFenceCreateFlag.NONE);
// VkBuffer indexBuffer = _Device.CreateBuffer(0, 3 * sizeof(Int32), VkBufferUsageFlag.VK_BUFFER_USAGE_INDEX_BUFFER, VkSharingMode.VK_SHARING_MODE_CONCURRENT, new VkQueueFamilyProperties[] { _Queue.Family });
// VkBuffer vertexBuffer = _Device.CreateBuffer(0, 3 * sizeof(float), VkBufferUsageFlag.VK_BUFFER_USAGE_VERTEX_BUFFER, VkSharingMode.VK_SHARING_MODE_CONCURRENT, new VkQueueFamilyProperties[] { _Queue.Family });
// Now we need to create a command buffer and we will fill it with a single command:
// Fill the image with the color (0.1f, 0.75f, 1.0f, 1.0f) which is a Sky blue.
VkClearValue.VkClearColorValue.Float color = new VkClearValue.VkClearColorValue.Float();
color.float32[0] = 0.1f; color.float32[1] = 0.75f; color.float32[2] = 1.0f; color.float32[3] = 1.0f;
VkCommandPool Pool = _Device.CreateCommandPool(VkCommandPoolCreateFlag.NONE, _Queue.Family);
_CommandBuffer = Pool.AllocateCommandBuffer(VkCommandBufferLevel.VK_COMMAND_BUFFER_LEVEL_PRIMARY);
_CommandBuffer.Begin(VkCommandBufferUsageFlag.NONE);
_CommandBuffer.CmdBeginRenderPass(_Framebuffer.RenderPass,
new VkRect2D(0, 0, (uint)640, (uint)480),
_Framebuffer.GetFramebuffer(),
new VkClearValue[] { color },
VkSubpassContents.VK_SUBPASS_CONTENTS_INLINE);
_GraphicsPipeline.BindPipeline(_CommandBuffer);
_CommandBuffer.CmdDraw(3, 1, 0, 0);
_CommandBuffer.CmdEndRenderPass();
_CommandBuffer.cmdCopyImageToBuffer(_Framebuffer.FrameBufferColor,
VkImageLayout.VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
_Framebuffer._TransferBuffer,
new VkBufferImageCopy[]
{
new VkBufferImageCopy()
{
bufferImageHeight = (uint)_Framebuffer.Height,
bufferOffset = 0,
bufferRowLength = (uint)_Framebuffer.Width,
imageExtent = new VkExtent3D()
{
depth = 1, width = (uint)_Framebuffer.Width, height = (uint)_Framebuffer.Height
},
imageSubresource = new VkImageSubresourceLayers()
{
aspectMask = VkImageAspectFlag.VK_IMAGE_ASPECT_COLOR_BIT, baseArrayLayer = 0, layerCount = 1, mipLevel = 0
}
}
});
_CommandBuffer.End();
}
void RecordCommands()
{
for (int i = 0; i < swapchainImages.Count; i++)
{
VkCommandBuffer commandBuffer = commandBuffers[i];
commandBuffer.Reset(VkCommandBufferResetFlags.None);
VkCommandBufferBeginInfo beginInfo = new VkCommandBufferBeginInfo();
beginInfo.flags = VkCommandBufferUsageFlags.SimultaneousUseBit;
commandBuffer.Begin(beginInfo);
//transfer to writable
commandBuffer.PipelineBarrier(VkPipelineStageFlags.FragmentShaderBit, VkPipelineStageFlags.TransferBit, VkDependencyFlags.None,
null, null,
new List <VkImageMemoryBarrier> {
new VkImageMemoryBarrier {
image = textureImage,
oldLayout = VkImageLayout.ShaderReadOnlyOptimal,
newLayout = VkImageLayout.TransferDstOptimal,
srcQueueFamilyIndex = -1, //VK_QUEUE_FAMILY_IGNORED
dstQueueFamilyIndex = -1,
srcAccessMask = VkAccessFlags.None,
dstAccessMask = VkAccessFlags.TransferWriteBit,
subresourceRange = new VkImageSubresourceRange {
aspectMask = VkImageAspectFlags.ColorBit,
baseArrayLayer = 0,
layerCount = 1,
baseMipLevel = 0,
levelCount = 1
}
}
});
commandBuffer.CopyBufferToImage(stagingBuffer, textureImage, VkImageLayout.TransferDstOptimal,
new VkBufferImageCopy[] {
new VkBufferImageCopy {
imageExtent = new VkExtent3D {
width = imageWidth,
height = imageHeight,
depth = 1
},
imageSubresource = new VkImageSubresourceLayers {
aspectMask = VkImageAspectFlags.ColorBit,
baseArrayLayer = 0,
layerCount = 1,
mipLevel = 0
}
}
});
//transfer to shader readable
commandBuffer.PipelineBarrier(VkPipelineStageFlags.TransferBit, VkPipelineStageFlags.FragmentShaderBit, VkDependencyFlags.None,
null, null,
new List <VkImageMemoryBarrier> {
new VkImageMemoryBarrier {
image = textureImage,
oldLayout = VkImageLayout.TransferDstOptimal,
newLayout = VkImageLayout.ShaderReadOnlyOptimal,
srcQueueFamilyIndex = -1, //VK_QUEUE_FAMILY_IGNORED
dstQueueFamilyIndex = -1,
srcAccessMask = VkAccessFlags.TransferWriteBit,
dstAccessMask = VkAccessFlags.ShaderReadBit,
subresourceRange = new VkImageSubresourceRange {
aspectMask = VkImageAspectFlags.ColorBit,
baseArrayLayer = 0,
layerCount = 1,
baseMipLevel = 0,
levelCount = 1
}
}
});
VkRenderPassBeginInfo renderPassBeginInfo = new VkRenderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.framebuffer = swapchainFramebuffers[i];
renderPassBeginInfo.renderArea = new VkRect2D {
extent = new VkExtent2D {
width = window.FramebufferWidth,
height = window.FramebufferHeight
}
};
renderPassBeginInfo.clearValues = new List <VkClearValue> {
new VkClearValue {
color = new VkClearColorValue(0.125f, 0.125f, 0.125f, 0.125f)
}
};
commandBuffer.BeginRenderPass(renderPassBeginInfo, VkSubpassContents.Inline);
commandBuffer.BindPipeline(VkPipelineBindPoint.Graphics, pipeline);
commandBuffer.BindDescriptorSets(VkPipelineBindPoint.Graphics, pipelineLayout, 0, descriptorSet, null);
commandBuffer.BindVertexBuffers(0, vertexBuffer, 0);
commandBuffer.BindIndexBuffer(indexBuffer, 0, VkIndexType.UINT32);
commandBuffer.SetViewports(0, new VkViewport {
width = swapchainExtent.width,
height = swapchainExtent.height,
minDepth = 0,
maxDepth = 1,
});
commandBuffer.SetScissor(0, new VkRect2D {
extent = swapchainExtent
});
commandBuffer.DrawIndexed(6, 1, 0, 0, 0);
commandBuffer.EndRenderPass();
commandBuffer.End();
}
}
public ClearImage()
{
InitializeComponent();
_Bitmap = new Bitmap(640, 480);
// Create the VUlkan instance that we will use for this app
_Instance = new VkInstance("ClearImage - Sample", 1, "Ratchet", 1);
// Now lets walk all physical device and find the first one that supports graphics queue
foreach (VkPhysicalDevice physicalDevice in _Instance.vkEnumeratePhysicalDevices())
{
foreach (VkQueueFamilyProperties queueFamilly in physicalDevice.QueueFamilies)
{
if ((queueFamilly.queueFlags & VkQueueFlags.VK_QUEUE_GRAPHICS) != 0)
{
// We have a physical device that supports graphics queue, we can now create a Device on it
// with one queue and use it as our main device for this sample
_Device = physicalDevice.CreateDevice(new VkDeviceQueueCreateInfo[] { new VkDeviceQueueCreateInfo()
{
queueCount = 1, queueFamily = queueFamilly, queuePriorities = new float[] { 1.0f }
} });
// Ok now lets grab the graphics queue back. Technically there should only be one
// But just to be clean we do an iteration and look for the queue that matches our
// need
foreach (VkQueue queue in _Device.Queues)
{
if (queue.Family.queueFlags == queueFamilly.queueFlags)
{
_Queue = queue;
break;
}
}
// Now it is time to create the image that we will fill wih the solid color
_Image = _Device.CreateImage(
VkImageCreateFlag.NONE,
VkFormat.VK_FORMAT_B8G8R8A8_SRGB,
_Bitmap.Width, _Bitmap.Height,
1, 1,
VkSampleCountFlag.VK_SAMPLE_COUNT_1,
VkImageTiling.VK_IMAGE_TILING_LINEAR,
VkImageUsageFlag.VK_IMAGE_USAGE_TRANSFER_SRC | VkImageUsageFlag.VK_IMAGE_USAGE_TRANSFER_DST,
VkSharingMode.VK_SHARING_MODE_EXCLUSIVE,
null,
VkImageLayout.VK_IMAGE_LAYOUT_GENERAL);
// We will back this image with Host Accessible Memomy so we can map it an copy
// the content from the Host.
// To do so we need to find the right memory type first.
VkMemoryType HostMemory = new VkMemoryType();
foreach (VkMemoryType memoryType in _Image.MemoryRequirements.memoryTypes)
{
// Pick the first memory type that can be mapped into host memory
if ((memoryType.propertyFlags & VkMemoryPropertyFlags.VK_MEMORY_PROPERTY_HOST_VISIBLE) != 0)
{
HostMemory = memoryType;
break;
}
}
// Allocate the backing memory for this image
VkDeviceMemory Memory = _Device.AllocateMemory(_Image.MemoryRequirements.size, HostMemory);
_Image.BindMemory(Memory, 0);
// Create the CPU mapping
_ImagePtr = Memory.Map(0, _Image.MemoryRequirements.size, VkMemoryMapFlag.NONE);
// Now we need to create a command buffer and we will fill it with a single command:
// Fill the image with the color (0.1f, 0.75f, 1.0f, 1.0f) which is a Sky blue.
VkCommandPool Pool = _Device.CreateCommandPool(VkCommandPoolCreateFlag.NONE, _Queue.Family);
_CommandBuffer = Pool.AllocateCommandBuffer(VkCommandBufferLevel.VK_COMMAND_BUFFER_LEVEL_PRIMARY);
_CommandBuffer.Begin(VkCommandBufferUsageFlag.NONE);
_CommandBuffer.CmdClearColorImage(
_Image,
VkImageLayout.VK_IMAGE_LAYOUT_GENERAL,
0.1f, 0.75f, 1.0f, 1.0f,
new VkImageSubresourceRange[]
{
new VkImageSubresourceRange()
{
aspectMask = VkImageAspectFlag.VK_IMAGE_ASPECT_COLOR_BIT,
baseArrayLayer = 0,
baseMipLevel = 0,
layerCount = 1,
levelCount = 1
}
});
_CommandBuffer.End();
// Finally we will need a fence for our submission in order to wait on it
_Fence = _Device.CreateFence(VkFenceCreateFlag.NONE);
break;
}
}
}
}