public unsafe override void UpdateBuffer(DeviceBuffer buffer, uint bufferOffsetInBytes, IntPtr source, uint sizeInBytes)
{
D3D11Buffer d3dBuffer = Util.AssertSubtype <DeviceBuffer, D3D11Buffer>(buffer);
if (sizeInBytes == 0)
{
return;
}
bool isDynamic = (buffer.Usage & BufferUsage.Dynamic) == BufferUsage.Dynamic;
bool isStaging = (buffer.Usage & BufferUsage.Staging) == BufferUsage.Staging;
bool isUniformBuffer = (buffer.Usage & BufferUsage.UniformBuffer) == BufferUsage.UniformBuffer;
bool useMap = isDynamic;
bool updateFullBuffer = bufferOffsetInBytes == 0 && sizeInBytes == buffer.SizeInBytes;
bool useUpdateSubresource = !isDynamic && !isStaging && (!isUniformBuffer || updateFullBuffer);
if (useUpdateSubresource)
{
ResourceRegion?subregion = new ResourceRegion()
{
Left = (int)bufferOffsetInBytes,
Right = (int)(sizeInBytes + bufferOffsetInBytes),
Bottom = 1,
Back = 1
};
if (isUniformBuffer)
{
subregion = null;
}
if (bufferOffsetInBytes == 0)
{
_context.UpdateSubresource(d3dBuffer.Buffer, 0, subregion, source, 0, 0);
}
else
{
_context1.UpdateSubresource1(d3dBuffer.Buffer, 0, subregion, source, 0, 0, 0);
}
}
else if (useMap && updateFullBuffer) // Can only update full buffer with WriteDiscard.
{
SharpDX.DataBox db = _context.MapSubresource(
d3dBuffer.Buffer,
0,
D3D11Formats.VdToD3D11MapMode(isDynamic, MapMode.Write),
MapFlags.None);
if (sizeInBytes < 1024)
{
Unsafe.CopyBlock(db.DataPointer.ToPointer(), source.ToPointer(), sizeInBytes);
}
else
{
System.Buffer.MemoryCopy(source.ToPointer(), db.DataPointer.ToPointer(), buffer.SizeInBytes, sizeInBytes);
}
_context.UnmapSubresource(d3dBuffer.Buffer, 0);
}
else
{
D3D11Buffer staging = GetFreeStagingBuffer(sizeInBytes);
_gd.UpdateBuffer(staging, 0, source, sizeInBytes);
CopyBuffer(staging, 0, buffer, bufferOffsetInBytes, sizeInBytes);
_submittedStagingBuffers.Add(staging);
}
}
protected override MappedResource MapCore(MappableResource resource, MapMode mode, uint subresource)
{
MappedResourceCacheKey key = new MappedResourceCacheKey(resource, subresource);
lock (_mappedResourceLock)
{
if (_mappedResources.TryGetValue(key, out MappedResourceInfo info))
{
if (info.Mode != mode)
{
throw new VeldridException("The given resource was already mapped with a different MapMode.");
}
info.RefCount += 1;
_mappedResources[key] = info;
}
else
{
// No current mapping exists -- create one.
if (resource is D3D11Buffer buffer)
{
lock (_immediateContextLock)
{
DataBox db = _immediateContext.MapSubresource(
buffer.Buffer,
0,
D3D11Formats.VdToD3D11MapMode((buffer.Usage & BufferUsage.Dynamic) == BufferUsage.Dynamic, mode),
SharpDX.Direct3D11.MapFlags.None);
info.MappedResource = new MappedResource(resource, mode, db.DataPointer, buffer.SizeInBytes);
info.RefCount = 1;
info.Mode = mode;
_mappedResources.Add(key, info);
}
}
else
{
D3D11Texture texture = Util.AssertSubtype <MappableResource, D3D11Texture>(resource);
lock (_immediateContextLock)
{
DataBox db = _immediateContext.MapSubresource(
texture.DeviceTexture,
(int)subresource,
D3D11Formats.VdToD3D11MapMode(false, mode),
SharpDX.Direct3D11.MapFlags.None,
out DataStream ds);
info.MappedResource = new MappedResource(
resource,
mode,
db.DataPointer,
(uint)ds.Length,
subresource,
(uint)db.RowPitch,
(uint)db.SlicePitch);
info.RefCount = 1;
info.Mode = mode;
_mappedResources.Add(key, info);
}
}
}
return(info.MappedResource);
}
}
protected override MappedResource MapCore(MappableResource resource, MapMode mode, uint subresource)
{
MappedResourceCacheKey key = new MappedResourceCacheKey(resource, subresource);
lock (_mappedResourceLock)
{
if (_mappedResources.TryGetValue(key, out MappedResourceInfo info))
{
if (info.Mode != mode)
{
throw new VeldridException("The given resource was already mapped with a different MapMode.");
}
info.RefCount += 1;
_mappedResources[key] = info;
}
else
{
// No current mapping exists -- create one.
if (resource is D3D11Buffer buffer)
{
lock (_immediateContextLock)
{
MappedSubresource msr = _immediateContext.Map(
buffer.Buffer,
0,
D3D11Formats.VdToD3D11MapMode((buffer.Usage & BufferUsage.Dynamic) == BufferUsage.Dynamic, mode),
Vortice.Direct3D11.MapFlags.None);
info.MappedResource = new MappedResource(resource, mode, msr.DataPointer, buffer.SizeInBytes);
info.RefCount = 1;
info.Mode = mode;
_mappedResources.Add(key, info);
}
}
else
{
D3D11Texture texture = Util.AssertSubtype <MappableResource, D3D11Texture>(resource);
lock (_immediateContextLock)
{
Util.GetMipLevelAndArrayLayer(texture, subresource, out uint mipLevel, out uint arrayLayer);
MappedSubresource msr = _immediateContext.Map(
texture.DeviceTexture,
(int)mipLevel,
(int)arrayLayer,
D3D11Formats.VdToD3D11MapMode(false, mode),
Vortice.Direct3D11.MapFlags.None,
out int mipSize);
info.MappedResource = new MappedResource(
resource,
mode,
msr.DataPointer,
texture.Height * (uint)msr.RowPitch,
subresource,
(uint)msr.RowPitch,
(uint)msr.DepthPitch);
info.RefCount = 1;
info.Mode = mode;
_mappedResources.Add(key, info);
}
}
}
return(info.MappedResource);
}
}