private void BindVertexLayout(GalPipelineState New)
{
foreach (GalVertexBinding Binding in New.VertexBindings)
{
if (!Binding.Enabled || !Rasterizer.TryGetVbo(Binding.VboKey, out int VboHandle))
{
continue;
}
if (VaoHandle == 0)
{
VaoHandle = GL.GenVertexArray();
//Vertex arrays shouldn't be used anywhere else in OpenGL's backend
//if you want to use it, move this line out of the if
GL.BindVertexArray(VaoHandle);
}
foreach (GalVertexAttrib Attrib in Binding.Attribs)
{
//Skip uninitialized attributes.
if (Attrib.Size == 0)
{
continue;
}
GL.BindBuffer(BufferTarget.ArrayBuffer, VboHandle);
bool Unsigned =
Attrib.Type == GalVertexAttribType.Unorm ||
Attrib.Type == GalVertexAttribType.Uint ||
Attrib.Type == GalVertexAttribType.Uscaled;
bool Normalize =
Attrib.Type == GalVertexAttribType.Snorm ||
Attrib.Type == GalVertexAttribType.Unorm;
VertexAttribPointerType Type = 0;
if (Attrib.Type == GalVertexAttribType.Float)
{
Type = GetType(FloatAttribTypes, Attrib);
}
else
{
if (Unsigned)
{
Type = GetType(UnsignedAttribTypes, Attrib);
}
else
{
Type = GetType(SignedAttribTypes, Attrib);
}
}
if (!AttribElements.TryGetValue(Attrib.Size, out int Size))
{
throw new InvalidOperationException("Invalid attribute size \"" + Attrib.Size + "\"!");
}
int Offset = Attrib.Offset;
if (Binding.Stride != 0)
{
GL.EnableVertexAttribArray(Attrib.Index);
if (Attrib.Type == GalVertexAttribType.Sint ||
Attrib.Type == GalVertexAttribType.Uint)
{
IntPtr Pointer = new IntPtr(Offset);
VertexAttribIntegerType IType = (VertexAttribIntegerType)Type;
GL.VertexAttribIPointer(Attrib.Index, Size, IType, Binding.Stride, Pointer);
}
else
{
GL.VertexAttribPointer(Attrib.Index, Size, Type, Normalize, Binding.Stride, Offset);
}
}
else
{
GL.DisableVertexAttribArray(Attrib.Index);
SetConstAttrib(Attrib);
}
if (Binding.Instanced && Binding.Divisor != 0)
{
GL.VertexAttribDivisor(Attrib.Index, 1);
}
else
{
GL.VertexAttribDivisor(Attrib.Index, 0);
}
}
}
}
private void BindVertexLayout(GalPipelineState New)
{
foreach (GalVertexBinding Binding in New.VertexBindings)
{
if (!Binding.Enabled || !Rasterizer.TryGetVbo(Binding.VboKey, out int VboHandle))
{
continue;
}
if (VaoHandle == 0)
{
VaoHandle = GL.GenVertexArray();
//Vertex arrays shouldn't be used anywhere else in OpenGL's backend
//if you want to use it, move this line out of the if
GL.BindVertexArray(VaoHandle);
}
foreach (GalVertexAttrib Attrib in Binding.Attribs)
{
GL.EnableVertexAttribArray(Attrib.Index);
GL.BindBuffer(BufferTarget.ArrayBuffer, VboHandle);
bool Unsigned =
Attrib.Type == GalVertexAttribType.Unorm ||
Attrib.Type == GalVertexAttribType.Uint ||
Attrib.Type == GalVertexAttribType.Uscaled;
bool Normalize =
Attrib.Type == GalVertexAttribType.Snorm ||
Attrib.Type == GalVertexAttribType.Unorm;
VertexAttribPointerType Type = 0;
if (Attrib.Type == GalVertexAttribType.Float)
{
Type = VertexAttribPointerType.Float;
}
else
{
Type = AttribTypes[Attrib.Size] + (Unsigned ? 1 : 0);
}
int Size = AttribElements[Attrib.Size];
int Offset = Attrib.Offset;
if (Attrib.Type == GalVertexAttribType.Sint ||
Attrib.Type == GalVertexAttribType.Uint)
{
IntPtr Pointer = new IntPtr(Offset);
VertexAttribIntegerType IType = (VertexAttribIntegerType)Type;
GL.VertexAttribIPointer(Attrib.Index, Size, IType, Binding.Stride, Pointer);
}
else
{
GL.VertexAttribPointer(Attrib.Index, Size, Type, Normalize, Binding.Stride, Offset);
}
}
}
}