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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef Vertex_hpp
#define Vertex_hpp
#include "Color.hpp"
#include "Common/Types.hpp"
#include "Main/Config.hpp"
namespace sw
{
enum Out
{
// Default vertex output semantics
Pos = 0,
C0 = 1, // Diffuse
C1 = 2, // Specular
T0 = 3,
T1 = 4,
T2 = 5,
T3 = 6,
T4 = 7,
T5 = 8,
T6 = 9,
T7 = 10,
Fog = 11, // x component
Pts = Fog, // y component
// Variable semantics
V0 = 0,
Vn_1 = MAX_VERTEX_OUTPUTS - 1,
Unused,
VERTEX_OUTPUT_LAST = Unused,
};
struct UVWQ
{
float u;
float v;
float w;
float q;
float &operator[](int i)
{
return (&u)[i];
}
};
ALIGN(16, struct Vertex
{
union
{
struct // Fixed semantics
{
// Position
float x;
float y;
float z;
float w;
float4 C[2]; // Diffuse and specular color
UVWQ T[8]; // Texture coordinates
float f; // Fog
float pSize; // Point size
};
float4 v[MAX_VERTEX_OUTPUTS]; // Generic components using semantic declaration
};
// Projected coordinates
int X;
int Y;
float Z;
float W;
int clipFlags;
int padding[3];
});
static_assert((sizeof(Vertex) & 0x0000000F) == 0, "Vertex size not a multiple of 16 bytes (alignment requirement)");
}
#endif // Vertex_hpp