/// <summary>
/// Initializes a FastTextRendering instance (create and build required ressources, ...).
/// </summary>
/// <param name="graphicsContext">The current GraphicsContext.</param>
private unsafe void Initialize(GraphicsContext graphicsContext, int maxCharacters)
{
maxCharacterCount = maxCharacters;
var indexBufferSize = maxCharacters * 6 * sizeof(int);
var indexBufferLength = indexBufferSize / IndexStride;
// Map and build the indice buffer
indexBuffer = graphicsContext.Allocator.GetTemporaryBuffer(new BufferDescription(indexBufferSize, BufferFlags.IndexBuffer, GraphicsResourceUsage.Dynamic));
var mappedIndices = graphicsContext.CommandList.MapSubresource(indexBuffer, 0, MapMode.WriteNoOverwrite, false, 0, indexBufferSize);
var indexPointer = mappedIndices.DataBox.DataPointer;
var i = 0;
for (var c = 0; c < maxCharacters; c++)
{
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 0;
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 1;
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 2;
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 1;
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 3;
*(int *)(indexPointer + IndexStride * i++) = c * 4 + 2;
}
graphicsContext.CommandList.UnmapSubresource(mappedIndices);
indexBufferBinding = new IndexBufferBinding(Buffer.Index.New(graphicsContext.CommandList.GraphicsDevice, new DataPointer(indexPointer, indexBufferSize)), true, indexBufferLength);
// Create vertex buffers
vertexBuffers = new Buffer[VertexBufferCount];
for (int j = 0; j < VertexBufferCount; j++)
{
vertexBuffers[j] = Buffer.Vertex.New(graphicsContext.CommandList.GraphicsDevice, new VertexPositionNormalTexture[VertexBufferLength], GraphicsResourceUsage.Dynamic);
}
vertexBuffersBinding = new VertexBufferBinding[VertexBufferCount];
for (int j = 0; j < VertexBufferCount; j++)
{
vertexBuffersBinding[j] = new VertexBufferBinding(vertexBuffers[j], VertexPositionNormalTexture.Layout, 0);
}
inputElementDescriptions = new InputElementDescription[VertexBufferCount][];
for (int j = 0; j < VertexBufferCount; j++)
{
inputElementDescriptions[j] = vertexBuffersBinding[j].Declaration.CreateInputElements();
}
// Create the pipeline state object
pipelineState = new MutablePipelineState(graphicsContext.CommandList.GraphicsDevice);
pipelineState.State.SetDefaults();
pipelineState.State.InputElements = inputElementDescriptions[0];
pipelineState.State.PrimitiveType = PrimitiveType.TriangleList;
// Create the effect
simpleEffect = new EffectInstance(new Effect(graphicsContext.CommandList.GraphicsDevice, SpriteEffect.Bytecode));
simpleEffect.Parameters.Set(TexturingKeys.Sampler, graphicsContext.CommandList.GraphicsDevice.SamplerStates.LinearClamp);
simpleEffect.UpdateEffect(graphicsContext.CommandList.GraphicsDevice);
}
protected override void Destroy()
{
for (int i = 0; i < VertexBufferCount; i++)
{
vertexBuffers[i].Dispose();
}
activeVertexBufferIndex = -1;
mappedVertexBufferPointer = IntPtr.Zero;
if (indexBuffer != null)
{
indexBuffer.Dispose();
indexBuffer = null;
}
indexBufferBinding = null;
pipelineState = null;
if (simpleEffect != null)
{
simpleEffect.Dispose();
simpleEffect = null;
}
for (int i = 0; i < VertexBufferCount; i++)
{
inputElementDescriptions[i] = null;
}
charsToRenderCount = -1;
base.Destroy();
}
/// <summary>
/// Initializes a new instance of the <see cref="PrimitiveQuad" /> class.
/// </summary>
/// <param name="graphicsDevice">The graphics device.</param>
/// <param name="effect">The effect.</param>
public PrimitiveQuad(GraphicsDevice graphicsDevice)
{
GraphicsDevice = graphicsDevice;
sharedData = GraphicsDevice.GetOrCreateSharedData(GraphicsDeviceSharedDataType.PerDevice, "PrimitiveQuad::VertexBuffer", d => new SharedData(GraphicsDevice));
simpleEffect = new EffectInstance(new Effect(GraphicsDevice, SpriteEffect.Bytecode));
simpleEffect.Parameters.Set(SpriteBaseKeys.MatrixTransform, Matrix.Identity);
simpleEffect.UpdateEffect(graphicsDevice);
pipelineState = new MutablePipelineState(GraphicsDevice);
pipelineState.State.SetDefaults();
pipelineState.State.InputElements = VertexDeclaration.CreateInputElements();
pipelineState.State.PrimitiveType = PrimitiveType;
}
protected BatchBase(GraphicsDevice device, EffectBytecode defaultEffectByteCode, EffectBytecode defaultEffectByteCodeSRgb, ResourceBufferInfo resourceBufferInfo, VertexDeclaration vertexDeclaration, int indexSize = sizeof(short))
{
if (defaultEffectByteCode == null)
{
throw new ArgumentNullException(nameof(defaultEffectByteCode));
}
if (defaultEffectByteCodeSRgb == null)
{
throw new ArgumentNullException(nameof(defaultEffectByteCodeSRgb));
}
if (resourceBufferInfo == null)
{
throw new ArgumentNullException("resourceBufferInfo");
}
if (vertexDeclaration == null)
{
throw new ArgumentNullException("vertexDeclaration");
}
graphicsDevice = device;
mutablePipeline = new MutablePipelineState(device);
// TODO GRAPHICS REFACTOR Should we initialize FX lazily?
DefaultEffect = new EffectInstance(new Effect(device, defaultEffectByteCode)
{
Name = "BatchDefaultEffect"
});
DefaultEffectSRgb = new EffectInstance(new Effect(device, defaultEffectByteCodeSRgb)
{
Name = "BatchDefaultEffectSRgb"
});
drawsQueue = new ElementInfo[resourceBufferInfo.BatchCapacity];
drawTextures = new Texture[resourceBufferInfo.BatchCapacity];
TextureComparer = new TextureIdComparer();
BackToFrontComparer = new SpriteBackToFrontComparer();
FrontToBackComparer = new SpriteFrontToBackComparer();
// set the vertex layout and size
indexStructSize = indexSize;
vertexStructSize = vertexDeclaration.CalculateSize();
// Creates the vertex buffer (shared by within a device context).
ResourceContext = graphicsDevice.GetOrCreateSharedData(GraphicsDeviceSharedDataType.PerContext, resourceBufferInfo.ResourceKey, d => new DeviceResourceContext(graphicsDevice, vertexDeclaration, resourceBufferInfo));
}