2011-02-19 10:57:28 +00:00
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/*
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* Copyright (C) 2007-2009 Gabest
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* http://www.gabest.org
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*
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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; either version 2, or (at your option)
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* any later version.
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*
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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 for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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*/
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#pragma once
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#include "GPU.h"
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#pragma pack(push, 1)
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__aligned(class, 32) GPUDrawingEnvironment
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{
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public:
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GPURegSTATUS STATUS;
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GPURegPRIM PRIM;
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GPURegDAREA DAREA;
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GPURegDHRANGE DHRANGE;
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GPURegDVRANGE DVRANGE;
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GPURegDRAREA DRAREATL;
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GPURegDRAREA DRAREABR;
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GPURegDROFF DROFF;
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GPURegTWIN TWIN;
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GPURegCLUT CLUT;
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GPUDrawingEnvironment()
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{
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Reset();
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}
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void Reset()
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{
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memset(this, 0, sizeof(*this));
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STATUS.IDLE = 1;
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STATUS.COM = 1;
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STATUS.WIDTH0 = 1;
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DVRANGE.Y1 = 16;
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DVRANGE.Y2 = 256;
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}
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GSVector4i GetDisplayRect()
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{
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static int s_width[] = {256, 320, 512, 640, 368, 384, 512, 640};
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static int s_height[] = {240, 480};
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GSVector4i r;
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r.left = DAREA.X & ~7; // FIXME
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r.top = DAREA.Y;
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r.right = r.left + s_width[(STATUS.WIDTH1 << 2) | STATUS.WIDTH0];
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r.bottom = r.top + (DVRANGE.Y2 - DVRANGE.Y1) * s_height[STATUS.HEIGHT] / 240;
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return r.rintersect(GSVector4i(0, 0, 1024, 512));
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}
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int GetFPS()
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{
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return STATUS.ISPAL ? 50 : 60;
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}
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};
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#pragma pack(pop)
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