VkCommandBuffer BeginSingleTimeCommands()
{
var commandBuffer = commandPool.Allocate(VkCommandBufferLevel.Primary);
var beginInfo = new VkCommandBufferBeginInfo();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmitBit;
commandBuffer.Begin(beginInfo);
return(commandBuffer);
}
void CopyBuffer(VkBuffer src, VkBuffer dst, long size)
{
var info = new VkCommandBufferAllocateInfo();
info.level = VkCommandBufferLevel.Primary;
info.commandBufferCount = 1;
var buffers = commandPool.Allocate(info);
var buffer = buffers[0];
var beginInfo = new VkCommandBufferBeginInfo();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmitBit;
buffer.Begin(beginInfo);
VkBufferCopy region = new VkBufferCopy();
region.srcOffset = 0;
region.dstOffset = 0;
region.size = size;
buffer.CopyBuffer(src, dst, new VkBufferCopy[] { region });
buffer.End();
var submitInfo = new VkSubmitInfo();
submitInfo.commandBuffers = new List <VkCommandBuffer> {
buffer
};
graphicsQueue.Submit(new List <VkSubmitInfo> {
submitInfo
}, null);
graphicsQueue.WaitIdle();
commandPool.Free(buffers);
}
void CreateCommandBuffers()
{
if (commandBuffers != null)
{
commandPool.Free(commandBuffers);
}
var info = new VkCommandBufferAllocateInfo();
info.level = VkCommandBufferLevel.Primary;
info.commandBufferCount = swapchainFramebuffers.Count;
commandBuffers = new List <VkCommandBuffer>(commandPool.Allocate(info));
for (int i = 0; i < commandBuffers.Count; i++)
{
var buffer = commandBuffers[i];
var beginInfo = new VkCommandBufferBeginInfo();
beginInfo.flags = VkCommandBufferUsageFlags.SimultaneousUseBit;
buffer.Begin(beginInfo);
var renderPassInfo = new VkRenderPassBeginInfo();
renderPassInfo.renderPass = renderPass;
renderPassInfo.framebuffer = swapchainFramebuffers[i];
renderPassInfo.renderArea.extent = swapchainExtent;
VkClearValue clearColor = new VkClearValue {
color = new VkClearColorValue(0, 0, 0, 1f)
};
renderPassInfo.clearValues = new List <VkClearValue> {
clearColor
};
buffer.BeginRenderPass(renderPassInfo, VkSubpassContents.Inline);
buffer.BindPipeline(VkPipelineBindPoint.Graphics, pipeline);
buffer.Draw(3, 1, 0, 0);
buffer.EndRenderPass();
buffer.End();
}
}