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//
// CommandBuffer.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.Runtime.InteropServices;
using Vulkan;
using static Vulkan.VulkanNative;
namespace VKE {
public class CommandBuffer {
CommandPool pool;
VkCommandBuffer handle;
internal bool isAllocated;
public VkCommandBuffer Handle => handle;
public Device Device => pool?.dev;//this help
internal CommandBuffer (VkDevice _dev, CommandPool _pool, VkCommandBuffer _buff)
{
pool = _pool;
handle = _buff;
}
unsafe public void Submit (VkQueue queue, VkSemaphore wait = default(VkSemaphore), VkSemaphore signal = default (VkSemaphore), VkFence fence = default(VkFence)) {
VkSubmitInfo submit_info = VkSubmitInfo.New ();
VkPipelineStageFlags dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
submit_info.commandBufferCount = 1;
submit_info.pWaitDstStageMask = &dstStageMask;
if (signal != VkSemaphore.Null) {
submit_info.signalSemaphoreCount = 1;
submit_info.pSignalSemaphores = &signal;
}
if (wait != VkSemaphore.Null) {
submit_info.waitSemaphoreCount = 1;
submit_info.pWaitSemaphores = &wait;
}
VkCommandBuffer cmd = handle;
submit_info.pCommandBuffers = &cmd;
Utils.CheckResult (vkQueueSubmit (queue, 1, ref submit_info, fence));
}
public void Start (VkCommandBufferUsageFlags usage = VkCommandBufferUsageFlags.None) {
VkCommandBufferBeginInfo cmdBufInfo = new VkCommandBufferBeginInfo (usage);
Utils.CheckResult (vkBeginCommandBuffer (handle, ref cmdBufInfo));
}
public void End () {
Utils.CheckResult (vkEndCommandBuffer (handle));
}
/// <summary>
/// Update dynamic viewport state
/// </summary>
public void SetViewport (float width, float height, float minDepth = 0.0f, float maxDepth = 1.0f) {
VkViewport viewport = new VkViewport {
height = height,
width = width,
minDepth = 0.0f,
maxDepth = 1.0f,
};
vkCmdSetViewport (handle, 0, 1, ref viewport);
}
/// <summary>
/// Update dynamic scissor state
/// </summary>
public void SetScissor (uint width, uint height, int offsetX = 0, int offsetY = 0) {
VkRect2D scissor = new VkRect2D (offsetX, offsetY, width, height);
vkCmdSetScissor (handle, 0, 1, ref scissor);
}
public void BindPipeline (Pipeline pipeline) {
vkCmdBindPipeline (handle, VkPipelineBindPoint.Graphics, pipeline.handle);
}
public void BindDescriptorSet (PipelineLayout pipelineLayout, DescriptorSet descriptorSet, uint firstSet = 0) {
vkCmdBindDescriptorSets (handle, VkPipelineBindPoint.Graphics, pipelineLayout.handle, firstSet, 1, ref descriptorSet.handle, 0, IntPtr.Zero);
}
public void BindVertexBuffer (Buffer vertices, uint binding = 0, ulong offset = 0) {
vkCmdBindVertexBuffers (handle, binding, 1, ref vertices.handle, ref offset);
}
public void BindIndexBuffer (Buffer indices, VkIndexType indexType = VkIndexType.Uint32, ulong offset = 0) {
vkCmdBindIndexBuffer (handle, indices.handle, offset, indexType);
}
public void DrawIndexed (uint indexCount, uint instanceCount = 1, uint firstIndex = 0, int vertexOffset = 0, uint firstInstance = 1) {
vkCmdDrawIndexed (Handle, indexCount, instanceCount, firstIndex, vertexOffset, firstInstance);
}
public void Draw (uint vertexCount, uint instanceCount = 1, uint firstVertex = 0, uint firstInstance = 0) {
vkCmdDraw (Handle, vertexCount, instanceCount, firstVertex, firstInstance);
}
public void PushConstant (PipelineLayout pipelineLayout, VkShaderStageFlags stageFlags, Object data, uint offset = 0) {
vkCmdPushConstants (handle, pipelineLayout.handle, stageFlags, offset, (uint)Marshal.SizeOf (data), data.Pin ());
data.Unpin ();
}
public void Free () {
pool.FreeCommandBuffers (this);
}
}
}
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