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//
// Queue.cs
//
// Author:
// Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// Copyright (c) 2019 jp
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections;
using Vulkan;
using static Vulkan.VulkanNative;
namespace VKE {
public class PresentQueue : Queue {
public readonly VkSurfaceKHR Surface;
public PresentQueue (Device _dev, VkQueueFlags requestedFlags, VkSurfaceKHR _surface, float _priority = 0.0f) {
dev = _dev;
priority = _priority;
Surface = _surface;
qFamIndex = searchQFamily (requestedFlags);
dev.queues.Add (this);
}
uint searchQFamily (VkQueueFlags requestedFlags) {
//search for dedicated Q
for (uint i = 0; i < dev.phy.QueueFamilies.Length; i++) {
if (dev.phy.QueueFamilies[i].queueFlags == requestedFlags && dev.phy.GetPresentIsSupported (i, Surface))
return i;
}
//search Q having flags
for (uint i = 0; i < dev.phy.QueueFamilies.Length; i++) {
if ((dev.phy.QueueFamilies[i].queueFlags & requestedFlags) == requestedFlags && dev.phy.GetPresentIsSupported (i, Surface))
return i;
}
throw new Exception (string.Format ("No Queue with flags {0} found", requestedFlags));
}
public void Present (VkPresentInfoKHR present) {
Utils.CheckResult (vkQueuePresentKHR (handle, ref present));
}
public void Present (SwapChain swapChain, VkSemaphore wait) {
unsafe {
VkPresentInfoKHR present = VkPresentInfoKHR.New ();
uint idx = swapChain.currentImageIndex;
VkSwapchainKHR sc = swapChain.handle;
present.swapchainCount = 1;
present.pSwapchains = ≻
present.waitSemaphoreCount = 1;
present.pWaitSemaphores = &wait;
present.pImageIndices = &idx;
Utils.CheckResult (vkQueuePresentKHR (handle, ref present));
}
}
}
public class Queue {
internal VkQueue handle;
internal Device dev;
public Device Dev => dev;
VkQueueFlags flags => dev.phy.QueueFamilies[qFamIndex].queueFlags;
public uint qFamIndex;
public uint index;//index in queue family
public float priority;
protected Queue () { }
public Queue (Device _dev, VkQueueFlags requestedFlags, float _priority = 0.0f) {
dev = _dev;
priority = _priority;
qFamIndex = searchQFamily (requestedFlags);
dev.queues.Add (this);
}
public void Submit (CommandBuffer cmd, VkSemaphore wait = default(VkSemaphore), VkSemaphore signal = default (VkSemaphore), VkFence fence = default (VkFence)) {
cmd.Submit (handle, wait, signal, fence);
}
public void WaitIdle () {
Utils.CheckResult (vkQueueWaitIdle (handle));
}
uint searchQFamily (VkQueueFlags requestedFlags) {
//search for dedicated Q
for (uint i = 0; i < dev.phy.QueueFamilies.Length; i++) {
if (dev.phy.QueueFamilies[i].queueFlags == requestedFlags)
return i;
}
//search Q having flags
for (uint i = 0; i < dev.phy.QueueFamilies.Length; i++) {
if ((dev.phy.QueueFamilies[i].queueFlags & requestedFlags) == requestedFlags)
return i;
}
throw new Exception (string.Format ("No Queue with flags {0} found", requestedFlags));
}
internal void updateHandle () {
vkGetDeviceQueue (dev.VkDev, qFamIndex, index, out handle);
}
}
}
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