private d3dx_state CreateShader(TwoMGFX.ShaderInfo shaderInfo, string shaderFunction, string shaderProfile, bool isVertexShader)
{
// Compile the shader.
SharpDX.D3DCompiler.ShaderBytecode shaderByteCode;
try
{
SharpDX.D3DCompiler.ShaderFlags shaderFlags = 0;
// While we never allow preshaders, this flag is invalid for
// the DX11 shader compiler which doesn't allow preshaders
// in the first place.
//shaderFlags |= SharpDX.D3DCompiler.ShaderFlags.NoPreshader;
if (shaderInfo.DX11Profile)
shaderFlags |= SharpDX.D3DCompiler.ShaderFlags.EnableBackwardsCompatibility;
if (shaderInfo.Debug)
{
shaderFlags |= SharpDX.D3DCompiler.ShaderFlags.SkipOptimization;
shaderFlags |= SharpDX.D3DCompiler.ShaderFlags.Debug;
}
else
{
shaderFlags |= SharpDX.D3DCompiler.ShaderFlags.OptimizationLevel3;
}
// Compile the shader into bytecode.
var result = SharpDX.D3DCompiler.ShaderBytecode.Compile(
shaderInfo.fileContent,
shaderFunction,
shaderProfile,
shaderFlags,
0,
null,
null,
shaderInfo.fileName);
if (result.HasErrors)
throw new Exception(result.Message);
shaderByteCode = result.Bytecode;
//var source = shaderByteCode.Disassemble();
}
catch (Exception ex)
{
throw ex;
}
// Get a copy of the shader bytecode.
var bytecode = shaderByteCode.Data.ToArray();
// First look to see if we already created this same shader.
DXShaderData dxShader = null;
foreach (var shader in Shaders)
{
if (bytecode.SequenceEqual(shader.Bytecode))
{
dxShader = shader;
break;
}
}
// Create a new shader.
if ( dxShader == null )
{
if (shaderInfo.DX11Profile)
dxShader = DXShaderData.CreateHLSL(bytecode, isVertexShader, ConstantBuffers, Shaders.Count, shaderInfo.SamplerStates, shaderInfo.Debug);
else
dxShader = DXShaderData.CreateGLSL(bytecode, ConstantBuffers, Shaders.Count, shaderInfo.SamplerStates);
Shaders.Add(dxShader);
}
//var assmbly = desc.Bytecode.Disassemble();
//var buffer = reflection.GetConstantBuffer(0);
var state = new d3dx_state();
state.index = 0;
state.type = STATE_TYPE.CONSTANT;
state.operation = isVertexShader ? (uint)146 : (uint)147;
state.parameter = new d3dx_parameter();
state.parameter.name = string.Empty;
state.parameter.semantic = string.Empty;
state.parameter.class_ = D3DXPARAMETER_CLASS.OBJECT;
state.parameter.type = isVertexShader ? D3DXPARAMETER_TYPE.VERTEXSHADER : D3DXPARAMETER_TYPE.PIXELSHADER;
state.parameter.rows = 0;
state.parameter.columns = 0;
state.parameter.data = dxShader.SharedIndex;
return state;
}
static public DXEffectObject FromShaderInfo(TwoMGFX.ShaderInfo shaderInfo)
{
var effect = new DXEffectObject();
// These are filled out as we process stuff.
effect.ConstantBuffers = new List<DXConstantBufferData>();
effect.Shaders = new List<DXShaderData>();
// Go thru the techniques and that will find all the
// shaders and constant buffers.
effect.Techniques = new d3dx_technique[shaderInfo.Techniques.Count];
for (var t = 0; t < shaderInfo.Techniques.Count; t++)
{
var tinfo = shaderInfo.Techniques[t]; ;
var technique = new d3dx_technique();
technique.name = tinfo.name;
technique.pass_count = (uint)tinfo.Passes.Count;
technique.pass_handles = new d3dx_pass[tinfo.Passes.Count];
for (var p = 0; p < tinfo.Passes.Count; p++)
{
var pinfo = tinfo.Passes[p];
var pass = new d3dx_pass();
pass.name = pinfo.name ?? string.Empty;
pass.blendState = pinfo.blendState;
pass.depthStencilState = pinfo.depthStencilState;
pass.rasterizerState = pinfo.rasterizerState;
pass.state_count = 0;
var tempstate = new d3dx_state[2];
pinfo.ValidateShaderModels(shaderInfo.DX11Profile);
if (!string.IsNullOrEmpty(pinfo.psFunction))
{
pass.state_count += 1;
tempstate[pass.state_count -1] = effect.CreateShader(shaderInfo, pinfo.psFunction, pinfo.psModel, false);
}
if (!string.IsNullOrEmpty(pinfo.vsFunction))
{
pass.state_count += 1;
tempstate[pass.state_count - 1] = effect.CreateShader(shaderInfo, pinfo.vsFunction, pinfo.vsModel, true);
}
pass.states = new d3dx_state[pass.state_count];
for (var s = 0; s < pass.state_count; s++)
pass.states[s] = tempstate[s];
technique.pass_handles[p] = pass;
}
effect.Techniques[t] = technique;
}
// Make the list of parameters by combining all the
// constant buffers ignoring the buffer offsets.
var parameters = new List<d3dx_parameter>();
for (var c = 0; c < effect.ConstantBuffers.Count; c++ )
{
var cb = effect.ConstantBuffers[c];
for (var i = 0; i < cb.Parameters.Count; i++ )
{
var param = cb.Parameters[i];
var match = parameters.FindIndex(e => e.name == param.name);
if (match == -1)
{
cb.ParameterIndex.Add(parameters.Count);
parameters.Add(param);
}
else
{
// TODO: Make sure the type and size of
// the parameter match up!
cb.ParameterIndex.Add(match);
}
}
}
// Add the texture parameters from the samplers.
foreach (var shader in effect.Shaders)
{
for (var s = 0; s < shader._samplers.Length; s++)
{
var sampler = shader._samplers[s];
var match = parameters.FindIndex(e => e.name == sampler.parameterName);
if (match == -1)
{
// Store the index for runtime lookup.
shader._samplers[s].parameter = parameters.Count;
var param = new d3dx_parameter();
param.class_ = D3DXPARAMETER_CLASS.OBJECT;
param.name = sampler.parameterName;
param.semantic = string.Empty;
switch (sampler.type)
{
case MojoShader.MOJOSHADER_samplerType.MOJOSHADER_SAMPLER_1D:
param.type = DXEffectObject.D3DXPARAMETER_TYPE.TEXTURE1D;
break;
case MojoShader.MOJOSHADER_samplerType.MOJOSHADER_SAMPLER_2D:
param.type = DXEffectObject.D3DXPARAMETER_TYPE.TEXTURE2D;
break;
case MojoShader.MOJOSHADER_samplerType.MOJOSHADER_SAMPLER_VOLUME:
param.type = DXEffectObject.D3DXPARAMETER_TYPE.TEXTURE3D;
break;
case MojoShader.MOJOSHADER_samplerType.MOJOSHADER_SAMPLER_CUBE:
param.type = DXEffectObject.D3DXPARAMETER_TYPE.TEXTURECUBE;
break;
}
parameters.Add(param);
}
else
{
// TODO: Make sure the type and size of
// the parameter match up!
shader._samplers[s].parameter = match;
}
}
}
// TODO: Annotations are part of the .FX format and
// not a part of shaders... we need to implement them
// in our mgfx parser if we want them back.
/*
// Now find the things we could not in the constant
// buffer reflection interface... semantics and annotations.
for (var i = 0; i < parameters.Count; i++)
{
var vdesc = dxeffect.GetVariableByName(parameters[i].name);
if (!vdesc.IsValid)
continue;
parameters[i].semantic = vdesc.Description.Semantic ?? string.Empty;
// TODO: Annotations!
}
*/
effect.Parameters = parameters.ToArray();
return effect;
}
