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// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef _NATIVEVERTEXFORMAT_H
#define _NATIVEVERTEXFORMAT_H
#ifdef WIN32
#define LOADERDECL __cdecl
#else
#define LOADERDECL
#endif
typedef void (LOADERDECL *TPipelineFunction)();
struct InputVertexData
{
u8 posMtx;
u8 texMtx[8];
float position[4];
float normal[3][3];
u8 color[2][4];
float texCoords[8][2];
};
struct OutputVertexData
{
float mvPosition[3];
float projectedPosition[4];
float screenPosition[3];
float normal[3][3];
u8 color[2][4];
float texCoords[8][3];
void Lerp(float t, OutputVertexData *a, OutputVertexData *b)
{
#define LINTERP(T, OUT, IN) (OUT) + ((IN - OUT) * T)
#define LINTERP_INT(T, OUT, IN) (OUT) + (((IN - OUT) * T) >> 8)
for (int i = 0; i < 3; ++i)
mvPosition[i] = LINTERP(t, a->mvPosition[i], b->mvPosition[i]);
for (int i = 0; i < 4; ++i)
projectedPosition[i] = LINTERP(t, a->projectedPosition[i], b->projectedPosition[i]);
for (int i = 0; i < 3; ++i)
{
normal[i][0] = LINTERP(t, a->normal[i][0], b->normal[i][0]);
normal[i][1] = LINTERP(t, a->normal[i][1], b->normal[i][1]);
normal[i][2] = LINTERP(t, a->normal[i][2], b->normal[i][2]);
}
u16 t_int = (u16)(t * 256);
for (int i = 0; i < 4; ++i)
{
color[0][i] = LINTERP_INT(t_int, a->color[0][i], b->color[0][i]);
color[1][i] = LINTERP_INT(t_int, a->color[1][i], b->color[1][i]);
}
for (int i = 0; i < 8; ++i)
{
texCoords[i][0] = LINTERP(t, a->texCoords[i][0], b->texCoords[i][0]);
texCoords[i][1] = LINTERP(t, a->texCoords[i][1], b->texCoords[i][1]);
texCoords[i][2] = LINTERP(t, a->texCoords[i][2], b->texCoords[i][2]);
}
#undef LINTERP
#undef LINTERP_INT
}
};
#endif
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