// SwiftShader Software Renderer | |
// | |
// Copyright(c) 2005-2011 TransGaming Inc. | |
// | |
// All rights reserved. No part of this software may be copied, distributed, transmitted, | |
// transcribed, stored in a retrieval system, translated into any human or computer | |
// language by any means, or disclosed to third parties without the explicit written | |
// agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express | |
// or implied, including but not limited to any patent rights, are granted to you. | |
// | |
#ifndef sw_Primitive_hpp | |
#define sw_Primitive_hpp | |
#include "Vertex.hpp" | |
#include "Config.hpp" | |
namespace sw | |
{ | |
struct Triangle | |
{ | |
Vertex v0; | |
Vertex v1; | |
Vertex v2; | |
}; | |
struct PlaneEquation // z = A * x + B * y + C | |
{ | |
float4 A; | |
float4 B; | |
float4 C; | |
}; | |
struct Primitive | |
{ | |
int yMin; | |
int yMax; | |
float4 xQuad; | |
float4 yQuad; | |
PlaneEquation z; | |
PlaneEquation w; | |
union | |
{ | |
struct | |
{ | |
PlaneEquation C[2][4]; | |
PlaneEquation T[8][4]; | |
}; | |
PlaneEquation V[10][4]; | |
}; | |
PlaneEquation f; | |
float area; | |
// Masks for two-sided stencil | |
int64_t clockwiseMask; | |
int64_t invClockwiseMask; | |
struct Span | |
{ | |
unsigned short left; | |
unsigned short right; | |
}; | |
Span outlineUnderflow; | |
Span outline[OUTLINE_RESOLUTION]; | |
Span outlineOverflow; | |
}; | |
} | |
#endif // sw_Primitive_hpp |