/// <summary>
/// Updates program object uniforms using data from GpuProgramParameters.
/// normally called by GLSLGpuProgram.BindParameters() just before rendering occurs.
/// </summary>
/// <param name="parameters">GPU Parameters to use to update the uniforms params.</param>
public void UpdateUniforms(GpuProgramParameters parameters, GpuProgramParameters.GpuParamVariability mask,
GpuProgramType fromProgType)
{
foreach (var currentUniform in this.uniformReferences)
{
// Only pull values from buffer it's supposed to be in (vertex or fragment)
// This method will be called twice, once for vertex program params,
// and once for fragment program params.
if (fromProgType == currentUniform.SourceProgType)
{
var def = currentUniform.ConstantDef;
if ((def.Variability & mask) != 0)
{
var glArraySize = def.ArraySize;
// get the index in the parameter real list
switch (def.ConstantType)
{
case GpuProgramParameters.GpuConstantType.Float1:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniform1fvARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Float2:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniform2fvARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Float3:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniform3fvARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Float4:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniform4fvARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_2X2:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix2fvARB(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_2X3:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix2x3fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_2X4:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix2x4fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_3X2:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix3x2fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_3X3:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix3fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_3X4:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix3x4fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_4X2:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix4x2fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_4X3:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix4x3fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Matrix_4X4:
using (var ptr = parameters.GetFloatPointer(def.PhysicalIndex))
{
Gl.glUniformMatrix4fv(currentUniform.Location, glArraySize, 1, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Int1:
using (var ptr = parameters.GetIntPointer(def.PhysicalIndex))
{
Gl.glUniform1ivARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Int2:
using (var ptr = parameters.GetIntPointer(def.PhysicalIndex))
{
Gl.glUniform2ivARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Int3:
using (var ptr = parameters.GetIntPointer(def.PhysicalIndex))
{
Gl.glUniform3ivARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Int4:
using (var ptr = parameters.GetIntPointer(def.PhysicalIndex))
{
Gl.glUniform4ivARB(currentUniform.Location, glArraySize, ptr.Pointer.Pin());
}
break;
case GpuProgramParameters.GpuConstantType.Sampler1D:
case GpuProgramParameters.GpuConstantType.Sampler1DShadow:
case GpuProgramParameters.GpuConstantType.Sampler2D:
case GpuProgramParameters.GpuConstantType.Sampler2DShadow:
case GpuProgramParameters.GpuConstantType.Sampler3D:
case GpuProgramParameters.GpuConstantType.SamplerCube:
var value = parameters.GetIntConstant(def.PhysicalIndex);
Gl.glUniform1iARB(currentUniform.Location, value);
break;
case GpuProgramParameters.GpuConstantType.Unknown:
break;
} // end switch
GLSLHelper.CheckForGLSLError("GLSLLinkProgram::updateUniforms", 0);
} // variability & mask
} // fromProgType == currentUniform->mSourceProgType
} // end for
}
