public void BindVertexArrays(GLCmdVertexBufferObject vao)
{
mCache.SetVAO(vao.VBO);
}
public CmdBufferInstructionSet Compose(IGLCmdBufferRepository repository, IEnumerable <GLCmdRenderPassCommand> passes)
{
var output = new CmdBufferInstructionSet();
//var passes = new List<GLQueueRenderPass> ();
var pipelines = new List <GLCmdBufferPipelineItem> ();
// if (repository == null || repository.GraphicsPipelines.Count == 0)
// {
// pipelines.Add (new GLCmdBufferPipelineItem {
// StencilState = mStencil.GetDefaultEnums(),
// DepthState = mDepth.GetDefaultEnums(),
// });
// }
var drawItems = new List <GLCmdBufferDrawItem> ();
var vertexArrays = SetupVBOs(repository);
var viewports = SetupViewpoints(repository);
var backCompareMasks = new List <int> ();
var frontCompareMasks = new List <int> ();
var backReferences = new List <int> ();
var frontReferences = new List <int> ();
var backWriteMasks = new List <int> ();
var frontWriteMasks = new List <int> ();
var lineWidths = new List <float> ();
var scissors = SetupScissors(repository);
var blendConstants = new List <MgColor4f>();
var descriptorSets = SetupDescriptorSets(repository);
var depthBias = new List <GLCmdDepthBiasParameter> ();
var depthBounds = new List <GLCmdDepthBoundsParameter> ();
var clearValues = new List <GLCmdClearValuesParameter> ();
var colorBlends = new List <GLGraphicsPipelineBlendColorState> ();
// Generate commands here
// set up defaults
// var defaultPass = new GLQueueRenderPass { Index = 0 } ;
// passes.Add (defaultPass);
GLCmdVertexBufferObject currentVertexArray = null;
bool isFirst = true;
int pastPipelineIndex = 0;
int currentPipelineIndex = 0;
GLCmdBufferPipelineItem pipelineItem;
if (passes != null)
{
foreach (var pass in passes)
{
// var rp = new GLQueueRenderPass {
// Index = (byte) passes.Count,
// ClearValues = pass.ClearValues,
// };
// passes.Add (rp);
foreach (var command in pass.DrawCommands)
{
if (command.Pipeline.HasValue)
{
currentPipelineIndex = command.Pipeline.Value;
var pipeline = repository.GraphicsPipelines.At(currentPipelineIndex);
if (isFirst)
{
isFirst = false;
InsertNewPipeline(pass, pipeline, pipelines, clearValues, colorBlends);
}
else
{
if (pastPipelineIndex != currentPipelineIndex)
{
InsertNewPipeline(pass, pipeline, pipelines, clearValues, colorBlends);
}
}
var item = new GLCmdBufferDrawItem {
Command = ExtractPolygonMode(pipeline),
ProgramID = pipeline.ProgramID,
Topology = pipeline.Topology,
Pipeline = (byte)currentPipelineIndex,
DescriptorSet = GetStoreViaNullableIndex <GLCmdDescriptorSetParameter>(descriptorSets, repository.DescriptorSets, command.DescriptorSet),
Viewport = GetStoreViaNullableIndex <GLCmdViewportParameter>(viewports, repository.Viewports, command.Viewports),
BlendConstants = GetStoreViaNullableIndex <MgColor4f>(blendConstants, repository.BlendConstants, command.BlendConstants),
LineWidth = GetStoreViaNullableIndex <float>(lineWidths, repository.LineWidths, command.LineWidth),
DepthBias = GetStoreViaNullableIndex <GLCmdDepthBiasParameter>(depthBias, repository.DepthBias, command.DepthBias),
DepthBounds = GetStoreViaNullableIndex <GLCmdDepthBoundsParameter>(depthBounds, repository.DepthBounds, command.DepthBounds),
FrontStencilCompareMask = GetStoreViaNullableIndex <int>(frontCompareMasks, repository.FrontCompareMasks, command.FrontCompareMask),
BackStencilCompareMask = GetStoreViaNullableIndex <int>(backCompareMasks, repository.BackCompareMasks, command.BackCompareMask),
FrontStencilReference = GetStoreViaNullableIndex <int>(frontReferences, repository.FrontReferences, command.FrontReference),
BackStencilReference = GetStoreViaNullableIndex <int>(backReferences, repository.BackReferences, command.BackReference),
FrontStencilWriteMask = GetStoreViaNullableIndex <int>(frontWriteMasks, repository.FrontWriteMasks, command.FrontWriteMask),
BackStencilWriteMask = GetStoreViaNullableIndex <int>(backWriteMasks, repository.BackWriteMasks, command.BackWriteMask),
Scissor = GetStoreViaNullableIndex <GLCmdScissorParameter>(scissors, repository.Scissors, command.Scissors),
};
pastPipelineIndex = currentPipelineIndex;
if (command.DrawIndexedIndirect != null)
{
item.Command |= GLCommandBufferFlagBits.CmdDrawIndexedIndirect;
var drawCommand = command.DrawIndexedIndirect;
item.Buffer = ExtractIndirectBuffer(drawCommand.buffer);
item.Count = drawCommand.drawCount;
item.Offset = drawCommand.offset;
item.Stride = drawCommand.stride;
}
else if (command.DrawIndirect != null)
{
item.Command |= GLCommandBufferFlagBits.CmdDrawIndirect;
var drawCommand = command.DrawIndirect;
item.Buffer = ExtractIndirectBuffer(drawCommand.buffer);
item.Count = drawCommand.drawCount;
item.Offset = drawCommand.offset;
item.Stride = drawCommand.stride;
}
else if (command.DrawIndexed != null)
{
item.Command |= GLCommandBufferFlagBits.CmdDrawIndexed;
var drawCommand = command.DrawIndexed;
item.First = drawCommand.firstIndex;
item.FirstInstance = drawCommand.firstInstance;
item.Count = drawCommand.indexCount;
item.VertexOffset = drawCommand.vertexOffset;
item.InstanceCount = drawCommand.instanceCount;
}
else if (command.Draw != null)
{
var drawCommand = command.Draw;
item.FirstInstance = drawCommand.firstInstance;
item.First = drawCommand.firstVertex;
item.InstanceCount = drawCommand.instanceCount;
item.Count = drawCommand.vertexCount;
}
else
{
throw new InvalidOperationException();
}
if (command.VertexBuffer.HasValue)
{
// create new vbo
if (currentVertexArray == null)
{
currentVertexArray = GenerateVBO(repository, command, pipeline);
vertexArrays.Add(currentVertexArray);
}
else
{
bool useSameBuffers = (command.IndexBuffer.HasValue)
? currentVertexArray.Matches(
command.VertexBuffer.Value,
command.IndexBuffer.Value)
: currentVertexArray.Matches(
command.VertexBuffer.Value);
if (!useSameBuffers)
{
currentVertexArray = GenerateVBO(repository, command, pipeline);
vertexArrays.Add(currentVertexArray);
}
}
item.VBO = currentVertexArray.VBO;
}
if (command.IndexBuffer.HasValue)
{
var indexBuffer = repository.IndexBuffers.At(command.IndexBuffer.Value);
item.Command |= ExtractIndexType(indexBuffer, item.Command);
}
// build drawable
drawItems.Add(item);
}
}
}
}
output.DrawItems = drawItems.ToArray();
output.Pipelines = pipelines.ToArray();
output.VBOs = vertexArrays.ToArray();
output.ClearValues = clearValues.ToArray();
output.ColorBlends = colorBlends.ToArray();
output.Viewports = viewports.ToArray();
output.BackCompareMasks = backCompareMasks.ToArray();
output.FrontCompareMasks = frontCompareMasks.ToArray();
output.BackReferences = backReferences.ToArray();
output.FrontReferences = frontReferences.ToArray();
output.BackWriteMasks = backWriteMasks.ToArray();
output.FrontWriteMasks = frontWriteMasks.ToArray();
output.LineWidths = lineWidths.ToArray();
output.Scissors = scissors.ToArray();
output.BlendConstants = blendConstants.ToArray();
output.DescriptorSets = descriptorSets.ToArray();
output.DepthBias = depthBias.ToArray();
output.DepthBounds = depthBounds.ToArray();
return(output);
}
