public DebugDrawPipeline(RenderPass renderPass, uint maxVertices = 100,
VkSampleCountFlags samples = VkSampleCountFlags.SampleCount1, PipelineCache pipelineCache = null) :
base(renderPass, pipelineCache, "Debug draw pipeline")
{
vboLength = maxVertices * 6 * sizeof(float);
using (GraphicPipelineConfig cfg = GraphicPipelineConfig.CreateDefault(VkPrimitiveTopology.LineList, samples, false)) {
cfg.rasterizationState.lineWidth = 1.0f;
cfg.RenderPass = RenderPass;
cfg.Layout = new PipelineLayout(Dev, new VkPushConstantRange(VkShaderStageFlags.Vertex, (uint)Marshal.SizeOf <Matrix4x4> () * 2));
cfg.AddVertexBinding(0, 6 * sizeof(float));
cfg.AddVertexAttributes(0, VkFormat.R32g32b32Sfloat, VkFormat.R32g32b32Sfloat);
cfg.blendAttachments[0] = new VkPipelineColorBlendAttachmentState(true);
cfg.AddShaders(
new ShaderInfo(Dev, VkShaderStageFlags.Vertex, "#vke.debug.vert.spv"),
new ShaderInfo(Dev, VkShaderStageFlags.Fragment, "#vke.debug.frag.spv")
);
layout = cfg.Layout;
init(cfg);
}
Vertices = new HostBuffer(Dev, VkBufferUsageFlags.VertexBuffer, vboLength);
Vertices.Map();
}
/// <summary>
/// load bitmap from pointer
/// </summary>
void load(Queue staggingQ, CommandPool staggingCmdPool, IntPtr bitmap, bool generateMipmaps = true)
{
long size = info.extent.width * info.extent.height * 4 * info.extent.depth;
if (MemoryFlags.HasFlag(VkMemoryPropertyFlags.HostVisible))
{
Map();
unsafe {
System.Buffer.MemoryCopy(bitmap.ToPointer(), MappedData.ToPointer(), size, size);
}
Unmap();
if (generateMipmaps)
{
BuildMipmaps(staggingQ, staggingCmdPool);
}
}
else
{
using (HostBuffer stagging = new HostBuffer(Dev, VkBufferUsageFlags.TransferSrc, (UInt64)size, bitmap)) {
PrimaryCommandBuffer cmd = staggingCmdPool.AllocateAndStart(VkCommandBufferUsageFlags.OneTimeSubmit);
stagging.CopyTo(cmd, this);
if (generateMipmaps)
{
BuildMipmaps(cmd);
}
cmd.End();
staggingQ.Submit(cmd);
staggingQ.WaitIdle();
cmd.Free();
}
}
}