public static void Initialize(Device device, int resX, int resY)
{
int numQuads = resX * resY;
int numIndices = numQuads * 6;
int numParticlesMax = 1024 * 1024; // million particles max
int numIndicesParticles = numParticlesMax * 6;
int numRandomNumbers = 1024 * 1024; // million
var indices = new DataStream(sizeof(System.Int32) * numIndices, true, true);
var indicesParticles = new DataStream(sizeof(System.Int32) * numIndicesParticles, true, true);
var randomNumbers = new DataStream(sizeof(System.Single) * numRandomNumbers, true, true);
for (int i = 0; i < numQuads; i++)
{
indices.Write(i * 4 + 0);
indices.Write(i * 4 + 1);
indices.Write(i * 4 + 2);
indices.Write(i * 4 + 1);
indices.Write(i * 4 + 3);
indices.Write(i * 4 + 2);
}
indices.Position = 0;
for (int i = 0; i < numParticlesMax; i++)
{
indicesParticles.Write(i * 4 + 0);
indicesParticles.Write(i * 4 + 1);
indicesParticles.Write(i * 4 + 2);
indicesParticles.Write(i * 4 + 1);
indicesParticles.Write(i * 4 + 3);
indicesParticles.Write(i * 4 + 2);
}
indicesParticles.Position = 0;
System.Random rand = new System.Random();
for (int i = 0; i < numRandomNumbers; i++)
{
randomNumbers.Write((float)rand.NextDouble());
}
randomNumbers.Position = 0;
// create the vertex layout and buffer
m_FullResTriangleGridIndexBuffer = new Buffer(device, indices, sizeof(System.Int32) * numIndices, ResourceUsage.Default, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
m_ParticleHelperIndexBuffer = new Buffer(device, indicesParticles, sizeof(System.Int32) * numIndicesParticles, ResourceUsage.Default, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
m_RandomNumbersBuffer = GPUBufferObject.CreateBuffer(device, numRandomNumbers, 4, randomNumbers, true, false);
}
public static void Initialize(Device device, int resolutionX, int resolutionY)
{
RenderTargetSet.RenderTargetDescriptor rtDesc = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
m_HasDepth = false,
m_Width = resolutionX,
m_Height = resolutionY,
m_NumSurfaces = 1,
};
m_DebugRenderTarget = RenderTargetManager.RequestRenderTargetFromPool(rtDesc);
m_DebugAppendBuffer = GPUBufferObject.CreateBuffer(device, 1024, 8 * sizeof(uint), null, true, true);
}
public static void Initialize(Device device, int resolutionX, int resolutionY)
{
RenderTargetSet.RenderTargetDescriptor rtDesc = new RenderTargetSet.RenderTargetDescriptor()
{
m_Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
m_HasDepth = false,
m_Width = resolutionX,
m_Height = resolutionY,
m_NumSurfaces = 1,
};
m_DebugRenderTarget = RenderTargetManager.RequestRenderTargetFromPool(rtDesc);
m_DebugAppendBuffer = GPUBufferObject.CreateBuffer(device, 1024, 8 * sizeof(uint), null, true, true);
}
// Static functions
static public GPUBufferObject CreateBuffer(Device device, int size, int elementSizeInBytes, DataStream stream = null, bool append = false, bool allowStaging = false)
{
GPUBufferObject newBuffer = new GPUBufferObject();
// Variables
newBuffer.m_Size = size;
BindFlags bindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess;
BufferDescription description = new BufferDescription(size * elementSizeInBytes, ResourceUsage.Default, bindFlags, CpuAccessFlags.None, ResourceOptionFlags.StructuredBuffer, elementSizeInBytes);
newBuffer.m_BufferObject = stream != null ? new Buffer(device, stream, description) : new Buffer(device, description);
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
FirstElement = 0,
ElementCount = size,
Format = Format.Unknown,
Dimension = ShaderResourceViewDimension.ExtendedBuffer,
Flags = 0,
};
newBuffer.m_ShaderResourceView = new ShaderResourceView(device, newBuffer.m_BufferObject, srvViewDesc);
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 0,
Dimension = UnorderedAccessViewDimension.Buffer,
ElementCount = size,
Flags = append ? UnorderedAccessViewBufferFlags.AllowAppend : UnorderedAccessViewBufferFlags.None,
Format = Format.Unknown,
MipSlice = 0
};
newBuffer.m_UnorderedAccessView = new UnorderedAccessView(device, newBuffer.m_BufferObject, uavDesc);
if (allowStaging)
{
description = new BufferDescription(size * elementSizeInBytes, ResourceUsage.Staging, BindFlags.None, CpuAccessFlags.Read, ResourceOptionFlags.StructuredBuffer, elementSizeInBytes);
newBuffer.m_StagingBufferObject = new Buffer(device, description);
description = new BufferDescription(16, ResourceUsage.Staging, BindFlags.None, CpuAccessFlags.Read, ResourceOptionFlags.None, 4);
newBuffer.m_StagingCountBufferObject = new Buffer(device, description);
}
return(newBuffer);
}
// Static functions
static public GPUBufferObject CreateBuffer(Device device, int size, int elementSizeInBytes, DataStream stream = null, bool append = false, bool allowStaging = false)
{
GPUBufferObject newBuffer = new GPUBufferObject();
// Variables
newBuffer.m_Size = size;
BindFlags bindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess;
BufferDescription description = new BufferDescription(size * elementSizeInBytes, ResourceUsage.Default, bindFlags, CpuAccessFlags.None, ResourceOptionFlags.StructuredBuffer, elementSizeInBytes);
newBuffer.m_BufferObject = stream != null ? new Buffer(device, stream, description) : new Buffer(device, description);
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
FirstElement = 0,
ElementCount = size,
Format = Format.Unknown,
Dimension = ShaderResourceViewDimension.ExtendedBuffer,
Flags = 0,
};
newBuffer.m_ShaderResourceView = new ShaderResourceView(device, newBuffer.m_BufferObject, srvViewDesc);
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 0,
Dimension = UnorderedAccessViewDimension.Buffer,
ElementCount = size,
Flags = append ? UnorderedAccessViewBufferFlags.AllowAppend : UnorderedAccessViewBufferFlags.None,
Format = Format.Unknown,
MipSlice = 0
};
newBuffer.m_UnorderedAccessView = new UnorderedAccessView(device, newBuffer.m_BufferObject, uavDesc);
if (allowStaging)
{
description = new BufferDescription(size * elementSizeInBytes, ResourceUsage.Staging, BindFlags.None, CpuAccessFlags.Read, ResourceOptionFlags.StructuredBuffer, elementSizeInBytes);
newBuffer.m_StagingBufferObject = new Buffer(device, description);
description = new BufferDescription(16, ResourceUsage.Staging, BindFlags.None, CpuAccessFlags.Read, ResourceOptionFlags.None, 4);
newBuffer.m_StagingCountBufferObject = new Buffer(device, description);
}
return newBuffer;
}
// Static functions
static public GPUBufferObject CreateBuffer(Device device, int size)
{
GPUBufferObject newBuffer = new GPUBufferObject();
// Variables
newBuffer.m_Size = size;
BindFlags bindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess;
BufferDescription description = new BufferDescription(size * 4, ResourceUsage.Default, bindFlags, CpuAccessFlags.None, ResourceOptionFlags.StructuredBuffer, 4);
newBuffer.m_BufferObject = new Buffer(device, description);
ShaderResourceViewDescription srvViewDesc = new ShaderResourceViewDescription
{
ArraySize = 0,
ElementCount = size,
ElementWidth = size,
Format = Format.Unknown,
Dimension = ShaderResourceViewDimension.Buffer,
Flags = 0,
FirstArraySlice = 0,
MostDetailedMip = 0,
MipLevels = 0
};
newBuffer.m_ShaderResourceView = new ShaderResourceView(device, newBuffer.m_BufferObject, srvViewDesc);
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription
{
ArraySize = 0,
Dimension = UnorderedAccessViewDimension.Buffer,
ElementCount = size,
Flags = UnorderedAccessViewBufferFlags.None,
Format = Format.Unknown,
MipSlice = 0
};
newBuffer.m_UnorderedAccessView = new UnorderedAccessView(device, newBuffer.m_BufferObject, uavDesc);
return(newBuffer);
}