private void CreateDepthImage(VkPhysicalDevice physicalDevice, uint width, uint height)
{
VkImageCreateInfo createInfo = VkImageCreateInfo.New();
createInfo.imageType = VkImageType.Image2D;
createInfo.extent.width = width;
createInfo.extent.height = height;
createInfo.extent.depth = 1;
createInfo.mipLevels = 1;
createInfo.arrayLayers = 1;
createInfo.format = VkFormat.D32Sfloat;
createInfo.tiling = VkImageTiling.Optimal;
createInfo.initialLayout = VkImageLayout.Undefined;
createInfo.usage = VkImageUsageFlags.DepthStencilAttachment;
createInfo.sharingMode = VkSharingMode.Exclusive;
createInfo.samples = VkSampleCountFlags.Count1;
VkImage depthImage;
Assert(vkCreateImage(device, &createInfo, null, &depthImage));
VkMemoryRequirements memoryRequirements;
vkGetImageMemoryRequirements(device, depthImage, &memoryRequirements);
VkPhysicalDeviceMemoryProperties memoryProperties = new VkPhysicalDeviceMemoryProperties();
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memoryProperties);
VkMemoryAllocateInfo allocateInfo = VkMemoryAllocateInfo.New();
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = FDataBuffer <byte> .SelectMemoryType(memoryProperties, memoryRequirements.memoryTypeBits,
VkMemoryPropertyFlags.DeviceLocal);
VkDeviceMemory depthImageMemory;
Assert(vkAllocateMemory(device, &allocateInfo, null, &depthImageMemory));
vkBindImageMemory(device, depthImage, depthImageMemory, 0);
this.depthImage = depthImage;
this.depthImageMemory = depthImageMemory;
}
private static VkImage LoadTexture(VkDevice device, VkPhysicalDevice physicalDevice, int cmdPoolID, VkQueue queue, string[] paths, uint mipLevels)
{
Bitmap[] bitmaps = new Bitmap[paths.Length];
FDataBuffer <byte>[] tempBuffer = new FDataBuffer <byte> [paths.Length];
uint width = 0, height = 0;
for (int j = 0; j < paths.Length; j++)
{
bitmaps[j] = new Bitmap(System.Drawing.Image.FromFile(paths[j]));
var data = bitmaps[j].LockBits(new Rectangle(0, 0, bitmaps[j].Width, bitmaps[j].Height), System.Drawing.Imaging.ImageLockMode.ReadOnly,
bitmaps[j].PixelFormat);
width = (uint)data.Width;
height = (uint)data.Height;//TODO add size check
Span <byte> img = new Span <byte>((void *)data.Scan0, data.Stride * data.Height);
tempBuffer[j] = new FDataBuffer <byte>(device, physicalDevice, img.Length, VkBufferUsageFlags.TransferSrc,
VkSharingMode.Exclusive);
Span <byte> buffer = tempBuffer[j].Map();
for (int i = 0; i < img.Length; i += 4)
{
buffer[i + 2] = img[i];
buffer[i + 1] = img[i + 1];
buffer[i] = img[i + 2];
buffer[i + 3] = img[i + 3];
}
buffer = tempBuffer[j].UnMap();
}
VkImage texture = VkImage.Null;
VkDeviceMemory memory = VkDeviceMemory.Null;
VkImageCreateInfo createInfo = VkImageCreateInfo.New();
createInfo.imageType = VkImageType.Image2D;
createInfo.extent.width = width;
createInfo.extent.height = height;
createInfo.extent.depth = 1;
createInfo.mipLevels = mipLevels;
createInfo.arrayLayers = (uint)paths.Length;
createInfo.format = VkFormat.R8g8b8a8Unorm;
createInfo.tiling = VkImageTiling.Optimal;
createInfo.initialLayout = VkImageLayout.Undefined;
createInfo.usage = VkImageUsageFlags.TransferDst | VkImageUsageFlags.Sampled | VkImageUsageFlags.TransferSrc;
createInfo.sharingMode = VkSharingMode.Exclusive;
createInfo.samples = VkSampleCountFlags.Count1;
Assert(vkCreateImage(device, &createInfo, null, &texture));
VkMemoryRequirements memoryRequirements;
vkGetImageMemoryRequirements(device, texture, &memoryRequirements);
VkPhysicalDeviceMemoryProperties memoryProperties = new VkPhysicalDeviceMemoryProperties();
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memoryProperties);
VkMemoryAllocateInfo allocateInfo = VkMemoryAllocateInfo.New();
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = FDataBuffer <byte> .SelectMemoryType(memoryProperties, memoryRequirements.memoryTypeBits,
VkMemoryPropertyFlags.DeviceLocal);
Assert(vkAllocateMemory(device, &allocateInfo, null, &memory));
vkBindImageMemory(device, texture, memory, 0);
VkCommandBufferAllocateInfo pAllocateInfo = VkCommandBufferAllocateInfo.New();
pAllocateInfo.commandPool = CommandPoolManager.GetPool(cmdPoolID);
pAllocateInfo.level = VkCommandBufferLevel.Primary;
pAllocateInfo.commandBufferCount = 1;
VkCommandBuffer cmdBuffer = VkCommandBuffer.Null;
Assert(vkAllocateCommandBuffers(device, &pAllocateInfo, &cmdBuffer));
VkCommandBufferBeginInfo beginInfo = VkCommandBufferBeginInfo.New();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmit;
Assert(vkBeginCommandBuffer(cmdBuffer, &beginInfo));
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcAccessMask = VkAccessFlags.None;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite;
imageMemoryBarrier.oldLayout = VkImageLayout.Undefined;
imageMemoryBarrier.newLayout = VkImageLayout.TransferDstOptimal;
imageMemoryBarrier.srcQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.image = texture;
imageMemoryBarrier.subresourceRange = new VkImageSubresourceRange()
{
baseMipLevel = 0,
levelCount = mipLevels,
baseArrayLayer = 0,
layerCount = (uint)paths.Length,
aspectMask = VkImageAspectFlags.Color
};
vkCmdPipelineBarrier(cmdBuffer, VkPipelineStageFlags.AllCommands, VkPipelineStageFlags.AllCommands, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
for (int j = 0; j < tempBuffer.Length; j++)
{
VkBufferImageCopy region = new VkBufferImageCopy();
region.bufferOffset = 0;
region.bufferRowLength = 0;
region.bufferImageHeight = 0;
region.imageSubresource.aspectMask = VkImageAspectFlags.Color;
region.imageSubresource.mipLevel = 0;
region.imageSubresource.baseArrayLayer = (uint)j;
region.imageSubresource.layerCount = 1;
region.imageOffset = new VkOffset3D();
region.imageExtent = new VkExtent3D()
{
width = width, height = height, depth = 1
};
vkCmdCopyBufferToImage(cmdBuffer, tempBuffer[j].Buffer, texture, VkImageLayout.TransferDstOptimal, 1, ®ion);
}
imageMemoryBarrier.oldLayout = VkImageLayout.TransferDstOptimal;
imageMemoryBarrier.newLayout = VkImageLayout.ShaderReadOnlyOptimal;
vkCmdPipelineBarrier(cmdBuffer, VkPipelineStageFlags.AllCommands, VkPipelineStageFlags.AllCommands, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
Assert(vkEndCommandBuffer(cmdBuffer));
VkSubmitInfo submitInfo = VkSubmitInfo.New();
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmdBuffer;
Assert(vkQueueSubmit(queue, 1, &submitInfo, VkFence.Null));
Assert(vkQueueWaitIdle(queue));
vkFreeCommandBuffers(device, CommandPoolManager.GetPool(cmdPoolID), 1, &cmdBuffer);
return(texture);
}
