public void SetLayout(
CommandBuffer cmdbuffer,
VkAccessFlags srcAccessMask,
VkAccessFlags dstAccessMask,
VkImageLayout oldImageLayout,
VkImageLayout newImageLayout,
VkImageSubresourceRange subresourceRange,
VkPipelineStageFlags srcStageMask = VkPipelineStageFlags.AllCommands,
VkPipelineStageFlags dstStageMask = VkPipelineStageFlags.AllCommands,
uint srcQueueFamilyIndex = Vk.QueueFamilyIgnored,
uint dstQueueFamilyIndex = Vk.QueueFamilyIgnored)
{
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcQueueFamilyIndex = srcQueueFamilyIndex;
imageMemoryBarrier.dstQueueFamilyIndex = dstQueueFamilyIndex;
imageMemoryBarrier.oldLayout = oldImageLayout;
imageMemoryBarrier.newLayout = newImageLayout;
imageMemoryBarrier.image = handle;
imageMemoryBarrier.subresourceRange = subresourceRange;
imageMemoryBarrier.srcAccessMask = srcAccessMask;
imageMemoryBarrier.dstAccessMask = dstAccessMask;
Vk.vkCmdPipelineBarrier(
cmdbuffer.Handle,
srcStageMask,
dstStageMask,
0,
0, IntPtr.Zero,
0, IntPtr.Zero,
1, ref imageMemoryBarrier);
}
protected void TransitionImageLayout(VkImage image, uint mipLevels, uint baseArrayLayer, uint layerCount, VkImageLayout oldLayout, VkImageLayout newLayout)
{
VkCommandBuffer cb = BeginOneTimeCommands();
VkImageMemoryBarrier barrier = VkImageMemoryBarrier.New();
barrier.oldLayout = oldLayout;
barrier.newLayout = newLayout;
barrier.srcQueueFamilyIndex = QueueFamilyIgnored;
barrier.dstQueueFamilyIndex = QueueFamilyIgnored;
barrier.image = image;
barrier.subresourceRange.aspectMask = VkImageAspectFlags.Color;
barrier.subresourceRange.baseMipLevel = 0;
barrier.subresourceRange.levelCount = mipLevels;
barrier.subresourceRange.baseArrayLayer = baseArrayLayer;
barrier.subresourceRange.layerCount = layerCount;
vkCmdPipelineBarrier(
cb,
VkPipelineStageFlags.TopOfPipe,
VkPipelineStageFlags.TopOfPipe,
VkDependencyFlags.None,
0, null,
0, null,
1, &barrier);
EndOneTimeCommands(cb);
}
/** @brief Initialize an image memory barrier with no image transfer ownership */
public static VkImageMemoryBarrier imageMemoryBarrier()
{
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcQueueFamilyIndex = QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = QueueFamilyIgnored;
return(imageMemoryBarrier);
}
public static void TransitionImageLayout(
VkCommandBuffer cb,
VkImage image,
uint baseMipLevel,
uint levelCount,
uint baseArrayLayer,
uint layerCount,
VkImageAspectFlags aspectMask,
VkImageLayout oldLayout,
VkImageLayout newLayout)
{
Debug.Assert(oldLayout != newLayout);
VkImageMemoryBarrier barrier = VkImageMemoryBarrier.New();
barrier.oldLayout = oldLayout;
barrier.newLayout = newLayout;
barrier.srcQueueFamilyIndex = QueueFamilyIgnored;
barrier.dstQueueFamilyIndex = QueueFamilyIgnored;
barrier.image = image;
barrier.subresourceRange.aspectMask = aspectMask;
barrier.subresourceRange.baseMipLevel = baseMipLevel;
barrier.subresourceRange.levelCount = levelCount;
barrier.subresourceRange.baseArrayLayer = baseArrayLayer;
barrier.subresourceRange.layerCount = layerCount;
VkPipelineStageFlags srcStageFlags = VkPipelineStageFlags.None;
VkPipelineStageFlags dstStageFlags = VkPipelineStageFlags.None;
if ((oldLayout == VkImageLayout.Undefined || oldLayout == VkImageLayout.Preinitialized) && newLayout == VkImageLayout.TransferDstOptimal)
{
barrier.srcAccessMask = VkAccessFlags.None;
barrier.dstAccessMask = VkAccessFlags.TransferWrite;
srcStageFlags = VkPipelineStageFlags.TopOfPipe;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.ShaderReadOnlyOptimal && newLayout == VkImageLayout.TransferSrcOptimal)
{
barrier.srcAccessMask = VkAccessFlags.ShaderRead;
barrier.dstAccessMask = VkAccessFlags.TransferRead;
srcStageFlags = VkPipelineStageFlags.FragmentShader;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.ShaderReadOnlyOptimal && newLayout == VkImageLayout.TransferDstOptimal)
{
barrier.srcAccessMask = VkAccessFlags.ShaderRead;
barrier.dstAccessMask = VkAccessFlags.TransferWrite;
srcStageFlags = VkPipelineStageFlags.FragmentShader;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.Preinitialized && newLayout == VkImageLayout.TransferSrcOptimal)
{
barrier.srcAccessMask = VkAccessFlags.None;
barrier.dstAccessMask = VkAccessFlags.TransferRead;
srcStageFlags = VkPipelineStageFlags.TopOfPipe;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.TransferSrcOptimal && newLayout == VkImageLayout.ShaderReadOnlyOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferRead;
barrier.dstAccessMask = VkAccessFlags.ShaderRead;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.FragmentShader;
}
else if (oldLayout == VkImageLayout.TransferDstOptimal && newLayout == VkImageLayout.ShaderReadOnlyOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferWrite;
barrier.dstAccessMask = VkAccessFlags.ShaderRead;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.FragmentShader;
}
else if (oldLayout == VkImageLayout.TransferSrcOptimal && newLayout == VkImageLayout.TransferDstOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferRead;
barrier.dstAccessMask = VkAccessFlags.TransferWrite;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.TransferDstOptimal && newLayout == VkImageLayout.TransferSrcOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferWrite;
barrier.dstAccessMask = VkAccessFlags.TransferRead;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.ColorAttachmentOptimal && newLayout == VkImageLayout.TransferSrcOptimal)
{
barrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
barrier.dstAccessMask = VkAccessFlags.TransferRead;
srcStageFlags = VkPipelineStageFlags.ColorAttachmentOutput;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.ColorAttachmentOptimal && newLayout == VkImageLayout.TransferDstOptimal)
{
barrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
barrier.dstAccessMask = VkAccessFlags.TransferWrite;
srcStageFlags = VkPipelineStageFlags.ColorAttachmentOutput;
dstStageFlags = VkPipelineStageFlags.Transfer;
}
else if (oldLayout == VkImageLayout.ColorAttachmentOptimal && newLayout == VkImageLayout.ShaderReadOnlyOptimal)
{
barrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
barrier.dstAccessMask = VkAccessFlags.ShaderRead;
srcStageFlags = VkPipelineStageFlags.ColorAttachmentOutput;
dstStageFlags = VkPipelineStageFlags.FragmentShader;
}
else if (oldLayout == VkImageLayout.DepthStencilAttachmentOptimal && newLayout == VkImageLayout.ShaderReadOnlyOptimal)
{
barrier.srcAccessMask = VkAccessFlags.DepthStencilAttachmentWrite;
barrier.dstAccessMask = VkAccessFlags.ShaderRead;
srcStageFlags = VkPipelineStageFlags.LateFragmentTests;
dstStageFlags = VkPipelineStageFlags.FragmentShader;
}
else if (oldLayout == VkImageLayout.ColorAttachmentOptimal && newLayout == VkImageLayout.PresentSrcKHR)
{
barrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
barrier.dstAccessMask = VkAccessFlags.MemoryRead;
srcStageFlags = VkPipelineStageFlags.ColorAttachmentOutput;
dstStageFlags = VkPipelineStageFlags.BottomOfPipe;
}
else if (oldLayout == VkImageLayout.TransferDstOptimal && newLayout == VkImageLayout.ColorAttachmentOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferWrite;
barrier.dstAccessMask = VkAccessFlags.ColorAttachmentWrite;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.ColorAttachmentOutput;
}
else if (oldLayout == VkImageLayout.TransferDstOptimal && newLayout == VkImageLayout.DepthStencilAttachmentOptimal)
{
barrier.srcAccessMask = VkAccessFlags.TransferWrite;
barrier.dstAccessMask = VkAccessFlags.DepthStencilAttachmentWrite;
srcStageFlags = VkPipelineStageFlags.Transfer;
dstStageFlags = VkPipelineStageFlags.LateFragmentTests;
}
else
{
Debug.Fail("Invalid image layout transition.");
}
vkCmdPipelineBarrier(
cb,
srcStageFlags,
dstStageFlags,
VkDependencyFlags.None,
0, null,
0, null,
1, &barrier);
}
private static void InitMips(VkDevice device, VkQueue queue, VkImage image, int width, int height, uint mipLevels, uint layerCount, int cmdPool)
{
VkCommandBufferAllocateInfo pAllocateInfo = VkCommandBufferAllocateInfo.New();
pAllocateInfo.commandPool = CommandPoolManager.GetPool(cmdPool);
pAllocateInfo.level = VkCommandBufferLevel.Primary;
pAllocateInfo.commandBufferCount = 1;
VkCommandBuffer cmdBuffer = VkCommandBuffer.Null;
Assert(vkAllocateCommandBuffers(device, &pAllocateInfo, &cmdBuffer));
Assert(vkResetCommandBuffer(cmdBuffer, VkCommandBufferResetFlags.None));
VkCommandBufferBeginInfo beginInfo = VkCommandBufferBeginInfo.New();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmit;
Assert(vkBeginCommandBuffer(cmdBuffer, &beginInfo));
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcAccessMask = VkAccessFlags.None;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferWrite;
imageMemoryBarrier.oldLayout = VkImageLayout.Undefined;
imageMemoryBarrier.newLayout = VkImageLayout.TransferDstOptimal;
imageMemoryBarrier.srcQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.image = image;
imageMemoryBarrier.subresourceRange = new VkImageSubresourceRange()
{
baseMipLevel = 0,
levelCount = mipLevels,
baseArrayLayer = 0,
layerCount = layerCount,
aspectMask = VkImageAspectFlags.Color
};
vkCmdPipelineBarrier(cmdBuffer, VkPipelineStageFlags.AllCommands, VkPipelineStageFlags.AllCommands, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
for (int i = 1; i < mipLevels; i++)
{
imageMemoryBarrier.oldLayout = VkImageLayout.TransferDstOptimal;
imageMemoryBarrier.newLayout = VkImageLayout.TransferSrcOptimal;
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferWrite;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferRead;
imageMemoryBarrier.subresourceRange.baseMipLevel = (uint)(i - 1);
imageMemoryBarrier.subresourceRange.levelCount = 1;
vkCmdPipelineBarrier(cmdBuffer, VkPipelineStageFlags.AllCommands, VkPipelineStageFlags.AllCommands, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
VkImageBlit blit = new VkImageBlit();
blit.srcOffsets_0 = new VkOffset3D {
x = 0, y = 0, z = 0
};
blit.srcOffsets_1 = new VkOffset3D {
x = width, y = height, z = 1
};
blit.srcSubresource.aspectMask = VkImageAspectFlags.Color;
blit.srcSubresource.mipLevel = (uint)(i - 1);
blit.srcSubresource.baseArrayLayer = 0;
blit.srcSubresource.layerCount = layerCount;
blit.dstOffsets_0 = new VkOffset3D {
x = 0, y = 0, z = 0
};
blit.dstOffsets_1 = new VkOffset3D {
x = width / 2, y = height / 2, z = 1
};
blit.dstSubresource.aspectMask = VkImageAspectFlags.Color;
blit.dstSubresource.mipLevel = (uint)i;
blit.dstSubresource.baseArrayLayer = 0;
blit.dstSubresource.layerCount = layerCount;
vkCmdBlitImage(cmdBuffer, image, VkImageLayout.TransferSrcOptimal, image, VkImageLayout.TransferDstOptimal,
1, &blit, VkFilter.Linear);
width /= 2;
height /= 2;
imageMemoryBarrier.oldLayout = VkImageLayout.TransferSrcOptimal;
imageMemoryBarrier.newLayout = VkImageLayout.ShaderReadOnlyOptimal;
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ShaderRead;
imageMemoryBarrier.subresourceRange.baseMipLevel = (uint)(i - 1);
imageMemoryBarrier.subresourceRange.levelCount = 1;
vkCmdPipelineBarrier(cmdBuffer, VkPipelineStageFlags.AllCommands, VkPipelineStageFlags.AllCommands, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
}
imageMemoryBarrier.oldLayout = VkImageLayout.Undefined;
imageMemoryBarrier.newLayout = VkImageLayout.ShaderReadOnlyOptimal;
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ShaderRead;
imageMemoryBarrier.subresourceRange.baseMipLevel = mipLevels - 1;
imageMemoryBarrier.subresourceRange.levelCount = 1;
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));
}
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);
}
public void Execute(VkCommandBuffer buffer)
{
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcAccessMask = VkAccessFlags.None;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite;
imageMemoryBarrier.oldLayout = VkImageLayout.Undefined;
imageMemoryBarrier.newLayout = VkImageLayout.ColorAttachmentOptimal;
imageMemoryBarrier.srcQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = VulkanNative.QueueFamilyIgnored;
imageMemoryBarrier.image = swapchainImage;
imageMemoryBarrier.subresourceRange = new VkImageSubresourceRange()
{
baseMipLevel = 0,
levelCount = 1,
baseArrayLayer = 0,
layerCount = 1,
aspectMask = VkImageAspectFlags.Color
};
vkCmdPipelineBarrier(buffer, VkPipelineStageFlags.AllGraphics, VkPipelineStageFlags.AllGraphics, VkDependencyFlags.ByRegion,
0, null, 0, null, 1, &imageMemoryBarrier);
VkClearColorValue clearColorValue = new VkClearColorValue {
float32_0 = 3f / 255f, float32_1 = 2f / 255, float32_2 = 12f / 255, float32_3 = 1
};
VkClearDepthStencilValue clearDepthStencilValue = new VkClearDepthStencilValue(1, 0);
VkClearValue[] clearValues = new VkClearValue[2];
clearValues[0].color = clearColorValue;
clearValues[1].depthStencil = clearDepthStencilValue;
VkRenderPassBeginInfo passBeginInfo = VkRenderPassBeginInfo.New();
passBeginInfo.renderPass = renderPass;
passBeginInfo.framebuffer = swapchainFramebuffer;
passBeginInfo.renderArea.extent.width = (uint)Program.width;
passBeginInfo.renderArea.extent.height = (uint)Program.height;
passBeginInfo.clearValueCount = (uint)clearValues.Length;
fixed(VkClearValue *ptr = clearValues)
passBeginInfo.pClearValues = ptr;
vkCmdBeginRenderPass(buffer, &passBeginInfo, VkSubpassContents.Inline);
VkViewport viewport = new VkViewport();
viewport.x = 0;
viewport.y = (float)Program.height;
viewport.width = (float)Program.width;
viewport.height = -(float)Program.height;
VkRect2D scissor = new VkRect2D();
scissor.offset.x = 0;
scissor.offset.y = 0;
scissor.extent.width = (uint)Program.width;
scissor.extent.height = (uint)Program.height;
vkCmdSetViewport(buffer, 0, 1, &viewport);
vkCmdSetScissor(buffer, 0, 1, &scissor);
vkCmdBindPipeline(buffer, VkPipelineBindPoint.Graphics, pipeline);
if (mesh.IsReady)
{
mesh.Use();
VkBuffer[] databuffers = new VkBuffer[] { mesh.Mesh.vertices.Buffer, mesh.Mesh.vertices.Buffer, mesh.Mesh.vertices.Buffer, mesh.Mesh.vertices.Buffer };
ulong[] offsets = new ulong[] { 0, 3 * 4, 6 * 4, 6 * 4 + 2 * 4 };
fixed(VkBuffer *bptr = databuffers)
fixed(ulong *optr = offsets)
vkCmdBindVertexBuffers(buffer, 0, 4, bptr, optr);
vkCmdBindIndexBuffer(buffer, mesh.Mesh.indices.Buffer, 0, VkIndexType.Uint32);
uniformdata.Write(0, camera.View.ToFloatArray());
uniformdata.Write(16, camera.Projection.ToFloatArray());
UpdateUniformData(uniformdata, swapchainImageIndex);
VkDescriptorSet sets = descriptorSets[swapchainImageIndex];
VkPipelineLayout layout = pipelineLayout;
vkCmdBindDescriptorSets(buffer, VkPipelineBindPoint.Graphics, layout, 0, 1, &sets, 0, null);
vkCmdDrawIndexed(buffer, (uint)mesh.Mesh.indices.Length, 1, 0, 0, 0);
mesh.StopUse();
}
vkCmdEndRenderPass(buffer);
}
// Create an image memory barrier for changing the layout of
// an image and put it into an active command buffer
// See chapter 11.4 "Image Layout" for details
public void SetLayout(
CommandBuffer cmdbuffer,
VkImageLayout oldImageLayout,
VkImageLayout newImageLayout,
VkImageSubresourceRange subresourceRange,
VkPipelineStageFlags srcStageMask = VkPipelineStageFlags.AllCommands,
VkPipelineStageFlags dstStageMask = VkPipelineStageFlags.AllCommands)
{
// Create an image barrier object
VkImageMemoryBarrier imageMemoryBarrier = VkImageMemoryBarrier.New();
imageMemoryBarrier.srcQueueFamilyIndex = Vk.QueueFamilyIgnored;
imageMemoryBarrier.dstQueueFamilyIndex = Vk.QueueFamilyIgnored;
imageMemoryBarrier.oldLayout = oldImageLayout;
imageMemoryBarrier.newLayout = newImageLayout;
imageMemoryBarrier.image = handle;
imageMemoryBarrier.subresourceRange = subresourceRange;
// Source layouts (old)
// Source access mask controls actions that have to be finished on the old layout
// before it will be transitioned to the new layout
switch (oldImageLayout)
{
case VkImageLayout.Undefined:
// Image layout is undefined (or does not matter)
// Only valid as initial layout
// No flags required, listed only for completeness
imageMemoryBarrier.srcAccessMask = 0;
break;
case VkImageLayout.Preinitialized:
// Image is preinitialized
// Only valid as initial layout for linear images, preserves memory contents
// Make sure host writes have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.HostWrite;
break;
case VkImageLayout.ColorAttachmentOptimal:
// Image is a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
break;
case VkImageLayout.DepthStencilAttachmentOptimal:
// Image is a depth/stencil attachment
// Make sure any writes to the depth/stencil buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.DepthStencilAttachmentWrite;
break;
case VkImageLayout.TransferSrcOptimal:
// Image is a transfer source
// Make sure any reads from the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
break;
case VkImageLayout.TransferDstOptimal:
// Image is a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferWrite;
break;
case VkImageLayout.ShaderReadOnlyOptimal:
// Image is read by a shader
// Make sure any shader reads from the image have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.ShaderRead;
break;
}
// Target layouts (new)
// Destination access mask controls the dependency for the new image layout
switch (newImageLayout)
{
case VkImageLayout.TransferDstOptimal:
// Image will be used as a transfer destination
// Make sure any writes to the image have been finished
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferWrite;
break;
case VkImageLayout.TransferSrcOptimal:
// Image will be used as a transfer source
// Make sure any reads from and writes to the image have been finished
imageMemoryBarrier.srcAccessMask = imageMemoryBarrier.srcAccessMask | VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.TransferRead;
break;
case VkImageLayout.ColorAttachmentOptimal:
// Image will be used as a color attachment
// Make sure any writes to the color buffer have been finished
imageMemoryBarrier.srcAccessMask = VkAccessFlags.TransferRead;
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ColorAttachmentWrite;
break;
case VkImageLayout.DepthStencilAttachmentOptimal:
// Image layout will be used as a depth/stencil attachment
// Make sure any writes to depth/stencil buffer have been finished
imageMemoryBarrier.dstAccessMask = imageMemoryBarrier.dstAccessMask | VkAccessFlags.DepthStencilAttachmentWrite;
break;
case VkImageLayout.ShaderReadOnlyOptimal:
// Image will be read in a shader (sampler, input attachment)
// Make sure any writes to the image have been finished
if (imageMemoryBarrier.srcAccessMask == 0)
{
imageMemoryBarrier.srcAccessMask = VkAccessFlags.HostWrite | VkAccessFlags.TransferWrite;
}
imageMemoryBarrier.dstAccessMask = VkAccessFlags.ShaderRead;
break;
}
// Put barrier inside setup command buffer
Vk.vkCmdPipelineBarrier(
cmdbuffer.Handle,
srcStageMask,
dstStageMask,
0,
0, IntPtr.Zero,
0, IntPtr.Zero,
1, ref imageMemoryBarrier);
}