internal static void OnDeviceReset()
{
if (m_buffer != StructuredBufferId.NULL)
{
MyHwBuffers.Destroy(m_buffer);
m_buffer = StructuredBufferId.NULL;
}
Init();
}
internal void Release()
{
if (m_VB_positions != StructuredBufferId.NULL)
{
MyHwBuffers.Destroy(m_VB_positions);
MyHwBuffers.Destroy(m_VB_rest);
MyHwBuffers.Destroy(m_IB);
}
m_VB_positions = StructuredBufferId.NULL;
m_VB_rest = StructuredBufferId.NULL;
m_IB = StructuredBufferId.NULL;
}
internal unsafe void MoveToGPU()
{
if(m_dirty)
{
Release();
fixed(void* ptr = m_vertexStream0)
{
m_VB_positions = MyHwBuffers.CreateStructuredBuffer(m_vertices, Stride0, false, new IntPtr(ptr), "MyMergeInstancing positions");
}
fixed (void* ptr = m_vertexStream1)
{
m_VB_rest = MyHwBuffers.CreateStructuredBuffer(m_vertices, Stride1, false, new IntPtr(ptr), "MyMergeInstancing rest");
}
fixed (void* ptr = m_indexStream)
{
m_IB = MyHwBuffers.CreateStructuredBuffer(m_indices, IndexStride, false, new IntPtr(ptr), "MyMergeInstancing");
}
m_dirty = false;
}
}
internal unsafe static void Init()
{
m_buffer = MyHwBuffers.CreateStructuredBuffer(4096, sizeof(MyPerMaterialData), true, null, "MySceneMaterials");
}
internal static void ResizeAndUpdateStaticStructuredBuffer(ref StructuredBufferId id, int capacity, int stride, IntPtr data, string debugName, DeviceContext context = null)
{
if (id == StructuredBufferId.NULL)
{
id = CreateStructuredBuffer(capacity, stride, false, data, debugName);
}
else
{
Debug.Assert(stride == id.Stride);
Debug.Assert(false == id.Dynamic);
if (id.Capacity < capacity)
{
SBuffersData[id.Index].Buffer.Dispose();
SBuffers.Data[id.Index].Description.SizeInBytes = stride * capacity;
InitStructuredBuffer(id, data);
}
else
{
if (context == null)
context = MyRender11.DeviceContext;
context.UpdateSubresource(new DataBox(data, stride * capacity, 0), id.Buffer);
}
}
}
private static void InitDevice()
{
m_particleBuffer = new MyRWStructuredBuffer(MyGPUEmitters.MAX_PARTICLES, PARTICLE_STRIDE, MyRWStructuredBuffer.UavType.Default, true, "MyGPUParticleRenderer::particleBuffer");
m_deadListBuffer = new MyRWStructuredBuffer(MyGPUEmitters.MAX_PARTICLES, sizeof(uint), MyRWStructuredBuffer.UavType.Append, false, "MyGPUParticleRenderer::deadListBuffer");
m_skippedParticleCountBuffer = new MyRWStructuredBuffer(1, sizeof(uint), MyRWStructuredBuffer.UavType.Counter, true, "MyGPUParticleRenderer::skippedParticleCountBuffer");
// Create a staging buffer that is used to read GPU atomic counter into that can then be mapped for reading
// back to the CPU for debugging purposes
m_debugCounterBuffers[0] = new MyReadStructuredBuffer(1, sizeof(uint), "MyGPUParticleRenderer::debugCounterBuffers[0]");
m_debugCounterBuffers[1] = new MyReadStructuredBuffer(1, sizeof(uint), "MyGPUParticleRenderer::debugCounterBuffers[1]");
var description = new SharpDX.Direct3D11.BufferDescription(4 * sizeof(uint),
SharpDX.Direct3D11.ResourceUsage.Default, SharpDX.Direct3D11.BindFlags.ConstantBuffer, SharpDX.Direct3D11.CpuAccessFlags.None,
SharpDX.Direct3D11.ResourceOptionFlags.None, sizeof(uint));
m_activeListConstantBuffer = MyHwBuffers.CreateConstantsBuffer(description, "MyGPUParticleRenderer::activeListConstantBuffer");
m_emitterConstantBuffer = MyHwBuffers.CreateConstantsBuffer(EMITTERCONSTANTBUFFER_SIZE, "MyGPUParticleRenderer::emitterConstantBuffer");
m_emitterStructuredBuffer = MyHwBuffers.CreateStructuredBuffer(MyGPUEmitters.MAX_LIVE_EMITTERS, EMITTERDATA_SIZE, true, null,
"MyGPUParticleRenderer::emitterStructuredBuffer");
m_aliveIndexBuffer = new MyRWStructuredBuffer(MyGPUEmitters.MAX_PARTICLES, sizeof(float), MyRWStructuredBuffer.UavType.Counter, true,
"MyGPUParticleRenderer::aliveIndexBuffer");
m_indirectDrawArgsBuffer = new MyIndirectArgsBuffer(5, sizeof(uint), "MyGPUParticleRenderer::indirectDrawArgsBuffer");
unsafe
{
uint[] indices = new uint[MyGPUEmitters.MAX_PARTICLES * 6];
for (uint i = 0, index = 0, vertex = 0; i < MyGPUEmitters.MAX_PARTICLES; i++)
{
indices[index + 0] = vertex + 0;
indices[index + 1] = vertex + 1;
indices[index + 2] = vertex + 2;
indices[index + 3] = vertex + 2;
indices[index + 4] = vertex + 1;
indices[index + 5] = vertex + 3;
vertex += 4;
index += 6;
}
fixed (uint* ptr = indices)
{
m_ib = MyHwBuffers.CreateIndexBuffer(MyGPUEmitters.MAX_PARTICLES * 6, SharpDX.DXGI.Format.R32_UInt,
SharpDX.Direct3D11.BindFlags.IndexBuffer, SharpDX.Direct3D11.ResourceUsage.Immutable, new IntPtr(ptr), "MyGPUParticleRenderer::indexBuffer");
}
}
//MyRender11.BlendAlphaPremult
}
internal static ShaderResourceView GetView(StructuredBufferId id)
{
return id != StructuredBufferId.NULL ? SBuffersData[id.Index].Srv : null;
}
internal static void InitStructuredBuffer(StructuredBufferId id, IntPtr data)
{
SBuffersData[id.Index].Buffer = new Buffer(MyRender11.Device, data, SBuffers.Data[id.Index].Description);
SBuffersData[id.Index].Srv = new ShaderResourceView(MyRender11.Device, SBuffersData[id.Index].Buffer);
if (SBuffers.Data[id.Index].DebugName != null)
{
SBuffersData[id.Index].Buffer.DebugName = SBuffers.Data[id.Index].DebugName;
SBuffersData[id.Index].Srv.DebugName = SBuffers.Data[id.Index].DebugName;
}
}
internal static Buffer GetBuffer(StructuredBufferId id)
{
return SBuffersData[id.Index].Buffer;
}
internal static BufferDescription GetBufferDesc(StructuredBufferId id)
{
return SBuffers.Data[id.Index].Description;
}
internal static void Destroy(StructuredBufferId id)
{
SbIndices.Remove(id);
if (SBuffersData[id.Index].Buffer != null)
{
SBuffersData[id.Index].Buffer.Dispose();
SBuffersData[id.Index].Buffer = null;
}
if (SBuffersData[id.Index].Srv != null)
{
SBuffersData[id.Index].Srv.Dispose();
SBuffersData[id.Index].Srv = null;
}
SBuffers.Free(id.Index);
}
internal static void Destroy(ref StructuredBufferId id)
{
if (id != StructuredBufferId.NULL)
{
Destroy(id); id = StructuredBufferId.NULL;
}
}
internal static StructuredBufferId CreateStructuredBuffer(BufferDescription description, IntPtr? data, string debugName)
{
var id = new StructuredBufferId { Index = SBuffers.Allocate() };
MyArrayHelpers.Reserve(ref SBuffersData, id.Index + 1);
SBuffers.Data[id.Index] = new MyHwBufferDesc { Description = description, DebugName = debugName };
SBuffersData[id.Index] = new MyStructuredBufferData { };
SbIndices.Add(id);
if (!data.HasValue)
{
InitStructuredBuffer(id);
}
else
{
InitStructuredBuffer(id, data.Value);
}
return id;
}
internal unsafe void MoveToGPU()
{
var context = MyImmediateRC.RC;
if (m_tableDirty)
{
var array = m_instancingTable.Data;
fixed (void* ptr = array)
{
var intPtr = new IntPtr(ptr);
MyHwBuffers.ResizeAndUpdateStaticStructuredBuffer(ref m_indirectionBuffer, array.Length, sizeof(MyInstancingTableEntry), intPtr,
"MyMergeInstancing/Tables", context);
m_srvs[0] = m_indirectionBuffer.Srv;
}
m_tableDirty = false;
}
if (m_instancesDataDirty)
{
var array = m_perInstance.Data;
fixed (void* ptr = array)
{
var intPtr = new IntPtr(ptr);
if (m_instanceBuffer != StructuredBufferId.NULL && m_instanceBuffer.Capacity < array.Length)
{
MyHwBuffers.Destroy(m_instanceBuffer);
m_instanceBuffer = StructuredBufferId.NULL;
m_srvs[1] = null;
}
if (m_instanceBuffer == StructuredBufferId.NULL)
{
m_instanceBuffer = MyHwBuffers.CreateStructuredBuffer(array.Length, sizeof(MyPerInstanceData), true, intPtr, "MyMergeInstancing instances");
m_srvs[1] = m_instanceBuffer.Srv;
}
else
{
var mapping = MyMapping.MapDiscard(MyImmediateRC.RC, m_instanceBuffer.Buffer);
mapping.WriteAndPosition(array, 0, array.Length);
mapping.Unmap();
}
}
m_instancesDataDirty = false;
}
}
internal void OnDeviceReset()
{
if (m_indirectionBuffer != StructuredBufferId.NULL)
{
MyHwBuffers.Destroy(m_indirectionBuffer);
MyHwBuffers.Destroy(m_instanceBuffer);
}
m_indirectionBuffer = StructuredBufferId.NULL;
m_instanceBuffer = StructuredBufferId.NULL;
Array.Clear(m_srvs, 0, m_srvs.Length);
m_tableDirty = true;
m_instancesDataDirty = true;
}
