mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-09-21 20:01:40 +02:00
8a711eadac
Changed the EFB color order from RGBA to ABGR to emulate it correctly on little-endian platforms. Added some enumerations to clear up what components are which colors. Fixed the TEV alpha input LUT which would have caused problems if anything was doing alpha comparisons. Changed box filter for EFB copies from 3x3 to 2x2 because that is probably correct. Also makes the math nicer. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6696 8ced0084-cf51-0410-be5f-012b33b47a6e
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _NATIVEVERTEXFORMAT_H
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#define _NATIVEVERTEXFORMAT_H
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#include "Vec3.h"
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#ifdef WIN32
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#define LOADERDECL __cdecl
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#else
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#define LOADERDECL
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#endif
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typedef void (LOADERDECL *TPipelineFunction)();
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struct Vec4
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{
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float x;
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float y;
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float z;
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float w;
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};
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struct InputVertexData
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{
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u8 posMtx;
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u8 texMtx[8];
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Vec3 position;
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Vec3 normal[3];
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u8 color[2][4];
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float texCoords[8][2];
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};
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struct OutputVertexData
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{
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// components in color channels
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enum { RED_C, GRN_C, BLU_C, ALP_C };
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Vec3 mvPosition;
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Vec4 projectedPosition;
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Vec3 screenPosition;
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Vec3 normal[3];
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u8 color[2][4];
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Vec3 texCoords[8];
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void Lerp(float t, OutputVertexData *a, OutputVertexData *b)
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{
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#define LINTERP(T, OUT, IN) (OUT) + ((IN - OUT) * T)
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#define LINTERP_INT(T, OUT, IN) (OUT) + (((IN - OUT) * T) >> 8)
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mvPosition = LINTERP(t, a->mvPosition, b->mvPosition);
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projectedPosition.x = LINTERP(t, a->projectedPosition.x, b->projectedPosition.x);
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projectedPosition.y = LINTERP(t, a->projectedPosition.y, b->projectedPosition.y);
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projectedPosition.z = LINTERP(t, a->projectedPosition.z, b->projectedPosition.z);
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projectedPosition.w = LINTERP(t, a->projectedPosition.w, b->projectedPosition.w);
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for (int i = 0; i < 3; ++i)
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{
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normal[i] = LINTERP(t, a->normal[i], b->normal[i]);
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}
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u16 t_int = (u16)(t * 256);
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for (int i = 0; i < 4; ++i)
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{
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color[0][i] = LINTERP_INT(t_int, a->color[0][i], b->color[0][i]);
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color[1][i] = LINTERP_INT(t_int, a->color[1][i], b->color[1][i]);
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}
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for (int i = 0; i < 8; ++i)
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{
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texCoords[i] = LINTERP(t, a->texCoords[i], b->texCoords[i]);
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}
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#undef LINTERP
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#undef LINTERP_INT
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}
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};
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#endif
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