forked from dolphin-emu/dolphin
		
	git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1688 8ced0084-cf51-0410-be5f-012b33b47a6e
		
			
				
	
	
		
			350 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			350 lines
		
	
	
		
			11 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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#include "Common.h"
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#include "Profiler.h"
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#include <cmath>
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#include "Statistics.h"
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#include "PixelShaderManager.h"
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#include "VideoCommon.h"
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static int s_nColorsChanged[2]; // 0 - regular colors, 1 - k colors
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static int s_nIndTexMtxChanged = 0;
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static bool s_bAlphaChanged;
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static bool s_bZBiasChanged;
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static bool s_bIndTexScaleChanged;
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static float lastRGBAfull[2][4][4];
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static u8 s_nTexDimsChanged;
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static u32 lastAlpha = 0;
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static u32 lastTexDims[8]={0};
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static u32 lastZBias = 0;
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// lower byte describes if a texture is nonpow2 or pow2
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// next byte describes whether the repeat wrap mode is enabled for the s channel
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// next byte is for t channel
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static u32 s_texturemask = 0;
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static int maptocoord[8]; // indexed by texture map, holds the texcoord associated with the map
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static u32 maptocoord_mask = 0;
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void PixelShaderManager::Init()
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{
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    s_nColorsChanged[0] = s_nColorsChanged[1] = 0;
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    s_nTexDimsChanged = 0;
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    s_nIndTexMtxChanged = 15;
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    s_bAlphaChanged = s_bZBiasChanged = s_bIndTexScaleChanged = true;
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    for (int i = 0; i < 8; ++i)
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		maptocoord[i] = -1;
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	maptocoord_mask = 0;
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    memset(lastRGBAfull, 0, sizeof(lastRGBAfull));
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}
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void PixelShaderManager::Shutdown()
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{
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}
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void PixelShaderManager::SetConstants()
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{
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    for (int i = 0; i < 2; ++i) {
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        if (s_nColorsChanged[i]) {
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            int baseind = i ? C_KCOLORS : C_COLORS;
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            for (int j = 0; j < 4; ++j) {
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                if (s_nColorsChanged[i] & (1 << j)) {
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                    SetPSConstant4fv(baseind+j, &lastRGBAfull[i][j][0]);
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                }
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            }
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            s_nColorsChanged[i] = 0;
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        }
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    }
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    u32 newmask = 0;
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    for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages+1; ++i) {
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        if (bpmem.tevorders[i/2].getEnable(i&1)) {
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            int texmap = bpmem.tevorders[i/2].getTexMap(i&1);
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            maptocoord[texmap] = bpmem.tevorders[i/2].getTexCoord(i&1);
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            newmask |= 1 << texmap;
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            SetTexDimsChanged(texmap);
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        }
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    }
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    if (maptocoord_mask != newmask) {
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        //u32 changes = maptocoord_mask ^ newmask;
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        for (int i = 0; i < 8; ++i) {
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            if (newmask & (1 << i)) {
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                SetTexDimsChanged(i);
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            }
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			else {
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                maptocoord[i] = -1;
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            }
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        }
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        maptocoord_mask = newmask;
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    }
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    if (s_nTexDimsChanged) {
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        for (int i = 0; i < 8; ++i) {
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            if (s_nTexDimsChanged & (1<<i)) {
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				SetPSTextureDims(i);
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			}            
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        }
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        s_nTexDimsChanged = 0;
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    }
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    if (s_bAlphaChanged) {
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        SetPSConstant4f(C_ALPHA, (lastAlpha&0xff)/255.0f, ((lastAlpha>>8)&0xff)/255.0f, 0, ((lastAlpha>>16)&0xff)/255.0f);
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    }
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    if (s_bZBiasChanged) {
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        u32 bits;
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        float ffrac = 255.0f/256.0f;
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        float ftemp[4];
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        switch (bpmem.ztex2.type) {
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            case 0:
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                bits = 8;
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                ftemp[0] = ffrac/(256.0f*256.0f); ftemp[1] = ffrac/256.0f; ftemp[2] = ffrac; ftemp[3] = 0;
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                break;
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            case 1:
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                bits = 16;
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                ftemp[0] = 0; ftemp[1] = ffrac/(256.0f*256.0f); ftemp[2] = ffrac/256.0f; ftemp[3] = ffrac;
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                break;
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            case 2:
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                bits = 24;
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                ftemp[0] = ffrac/(256.0f*256.0f); ftemp[1] = ffrac/256.0f; ftemp[2] = ffrac; ftemp[3] = 0;
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                break;
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        }
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        //ERROR_LOG("pixel=%x,%x, bias=%x\n", bpmem.zcontrol.pixel_format, bpmem.ztex2.type, lastZBias);
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        SetPSConstant4fv(C_ZBIAS, ftemp);
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        SetPSConstant4f(C_ZBIAS+1, 0, 0, 0, (float)( (((int)lastZBias<<8)>>8))/16777216.0f);
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    }
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    // indirect incoming texture scales, update all!
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    if (s_bIndTexScaleChanged) {
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		// set as two sets of vec4s, each containing S and T of two ind stages.
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        float f[8];
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        for (u32 i = 0; i < bpmem.genMode.numindstages; ++i) {
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            int srctexmap = bpmem.tevindref.getTexMap(i);
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            int texcoord = bpmem.tevindref.getTexCoord(i);
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            TCoordInfo& tc = bpmem.texcoords[texcoord];
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            f[2*i] = bpmem.texscale[i/2].getScaleS(i&1) *
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				(float)(tc.s.scale_minus_1+1) / (float)(lastTexDims[srctexmap] & 0xffff);
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            f[2*i+1] = bpmem.texscale[i/2].getScaleT(i&1) *
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				(float)(tc.t.scale_minus_1+1) / (float)((lastTexDims[srctexmap] >> 16) & 0xfff);
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			// Yes, the above should really be 0xfff. The top 4 bits are used for other stuff.
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            PRIM_LOG("tex indscale%d: %f %f\n", i, f[2*i], f[2*i+1]);
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        }
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        SetPSConstant4fv(C_INDTEXSCALE, f);
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        if (bpmem.genMode.numindstages > 2)
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            SetPSConstant4fv(C_INDTEXSCALE+1, &f[4]);
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        s_bIndTexScaleChanged = false;
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    }
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    if (s_nIndTexMtxChanged) {
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        for (int i = 0; i < 3; ++i) {
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            if (s_nIndTexMtxChanged & (1 << i)) {
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                int scale = ((u32)bpmem.indmtx[i].col0.s0 << 0) |
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					        ((u32)bpmem.indmtx[i].col1.s1 << 2) |
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					        ((u32)bpmem.indmtx[i].col2.s2 << 4);
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                float fscale = powf(2.0f, (float)(scale - 17)) / 1024.0f;
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                // xyz - static matrix
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                //TODO w - dynamic matrix scale / 256...... somehow / 4 works better
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                SetPSConstant4f(C_INDTEXMTX+2*i,
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                    bpmem.indmtx[i].col0.ma * fscale,
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					bpmem.indmtx[i].col1.mc * fscale,
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					bpmem.indmtx[i].col2.me * fscale,
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					fscale * 256.0f);
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                SetPSConstant4f(C_INDTEXMTX+2*i+1,
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                    bpmem.indmtx[i].col0.mb * fscale,
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					bpmem.indmtx[i].col1.md * fscale,
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					bpmem.indmtx[i].col2.mf * fscale,
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					fscale * 256.0f);
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                PRIM_LOG("indmtx%d: scale=%f, mat=(%f %f %f; %f %f %f)\n", i,
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                    1024.0f*fscale, bpmem.indmtx[i].col0.ma * fscale, bpmem.indmtx[i].col1.mc * fscale, bpmem.indmtx[i].col2.me * fscale,
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                    bpmem.indmtx[i].col0.mb * fscale, bpmem.indmtx[i].col1.md * fscale, bpmem.indmtx[i].col2.mf * fscale, fscale);
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            }
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        }
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        s_nIndTexMtxChanged = 0;
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    }
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}
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void PixelShaderManager::SetPSTextureDims(int texid)
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{
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	float fdims[4];
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	if (s_texturemask & (1<<texid)) {
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		if (maptocoord[texid] >= 0) {
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			TCoordInfo& tc = bpmem.texcoords[maptocoord[texid]];
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			fdims[0] = (float)(lastTexDims[texid]&0xffff);
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			fdims[1] = (float)((lastTexDims[texid]>>16)&0xfff);
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			fdims[2] = (float)(tc.s.scale_minus_1+1)/(float)(lastTexDims[texid]&0xffff);
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			fdims[3] = (float)(tc.t.scale_minus_1+1)/(float)((lastTexDims[texid]>>16)&0xfff);
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		}
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		else {
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			fdims[0] = (float)(lastTexDims[texid]&0xffff);
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			fdims[1] = (float)((lastTexDims[texid]>>16)&0xfff);
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			fdims[2] = 1.0f;
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			fdims[3] = 1.0f;
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		}
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	}
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	else {
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		if (maptocoord[texid] >= 0) {
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			TCoordInfo& tc = bpmem.texcoords[maptocoord[texid]];
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			fdims[0] = (float)(tc.s.scale_minus_1+1)/(float)(lastTexDims[texid]&0xffff);
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			fdims[1] = (float)(tc.t.scale_minus_1+1)/(float)((lastTexDims[texid]>>16)&0xfff);
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			fdims[2] = 1.0f/(float)(tc.s.scale_minus_1+1);
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			fdims[3] = 1.0f/(float)(tc.t.scale_minus_1+1);
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		}
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		else {
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			fdims[0] = 1.0f;
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			fdims[1] = 1.0f;
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			fdims[2] = 1.0f/(float)(lastTexDims[texid]&0xffff);
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			fdims[3] = 1.0f/(float)((lastTexDims[texid]>>16)&0xfff);
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		}
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	}
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	PRIM_LOG("texdims%d: %f %f %f %f\n", texid, fdims[0], fdims[1], fdims[2], fdims[3]);
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	SetPSConstant4fv(C_TEXDIMS + texid, fdims);
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}
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void PixelShaderManager::SetColorChanged(int type, int num)
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{
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    int r = bpmem.tevregs[num].low.a;
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	int a = bpmem.tevregs[num].low.b;
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    int b = bpmem.tevregs[num].high.a;
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	int g = bpmem.tevregs[num].high.b;
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    float *pf = &lastRGBAfull[type][num][0];
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    pf[0] = (float)r / 255.0f;
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    pf[1] = (float)g / 255.0f;
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    pf[2] = (float)b / 255.0f;
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    pf[3] = (float)a / 255.0f;
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    s_nColorsChanged[type] |= 1 << num;
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    PRIM_LOG("pixel %scolor%d: %f %f %f %f\n", type?"k":"", num, pf[0], pf[1], pf[2], pf[3]);
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}
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void PixelShaderManager::SetAlpha(const AlphaFunc& alpha)
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{
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    if ((alpha.hex & 0xffff) != lastAlpha) {
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        lastAlpha = (lastAlpha & ~0xffff) | (alpha.hex & 0xffff);
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        s_bAlphaChanged = true;
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    }
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}
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void PixelShaderManager::SetDestAlpha(const ConstantAlpha& alpha)
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{
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    if (alpha.alpha != (lastAlpha >> 16)) {
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        lastAlpha = (lastAlpha & ~0xff0000) | ((alpha.hex & 0xff) << 16);
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        s_bAlphaChanged = true;
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    }
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}
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void PixelShaderManager::SetTexDims(int texmapid, u32 width, u32 height, u32 wraps, u32 wrapt)
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{
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    u32 wh = width | (height << 16) | (wraps << 28) | (wrapt << 30);
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    if (lastTexDims[texmapid] != wh) {
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        lastTexDims[texmapid] = wh;
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		s_nTexDimsChanged |= 1 << texmapid;        
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    }
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}
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void PixelShaderManager::SetZTextureBias(u32 bias)
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{
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    if (lastZBias != bias) {
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        s_bZBiasChanged = true;
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        lastZBias = bias;
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    }
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}
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void PixelShaderManager::SetIndTexScaleChanged()
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{
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    s_bIndTexScaleChanged = true;
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}
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void PixelShaderManager::SetIndMatrixChanged(int matrixidx)
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{
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    s_nIndTexMtxChanged |= 1 << matrixidx;
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}
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void PixelShaderManager::SetGenModeChanged()
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{
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}
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void PixelShaderManager::SetTevCombinerChanged(int id)
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{
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}
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void PixelShaderManager::SetTevKSelChanged(int id)
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{
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}
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void PixelShaderManager::SetTevOrderChanged(int id)
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{
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}
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void PixelShaderManager::SetTevIndirectChanged(int id)
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{
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}
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void PixelShaderManager::SetZTextureOpChanged()
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{
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    s_bZBiasChanged = true;
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}
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void PixelShaderManager::SetTexturesUsed(u32 nonpow2tex)
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{
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    if (s_texturemask != nonpow2tex) {
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        for (int i = 0; i < 8; ++i) {
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            if (nonpow2tex & (0x10101 << i)) {
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				// this check was previously implicit, but should it be here?
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				if (s_nTexDimsChanged )
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					s_nTexDimsChanged |= 1 << i;				
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            }
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        }
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        s_texturemask = nonpow2tex;
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    }
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}
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void PixelShaderManager::SetTexDimsChanged(int texmapid)
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{
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    // this check was previously implicit, but should it be here?
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	if (s_nTexDimsChanged)
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		s_nTexDimsChanged |= 1 << texmapid;	
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    SetIndTexScaleChanged();
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}
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void PixelShaderManager::SetColorMatrix(const float* pmatrix, const float* pfConstAdd)
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{
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    SetPSConstant4fv(C_COLORMATRIX,   pmatrix);
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    SetPSConstant4fv(C_COLORMATRIX+1, pmatrix+4);
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    SetPSConstant4fv(C_COLORMATRIX+2, pmatrix+8);
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    SetPSConstant4fv(C_COLORMATRIX+3, pmatrix+12);
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    SetPSConstant4fv(C_COLORMATRIX+4, pfConstAdd);
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}
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u32 PixelShaderManager::GetTextureMask()
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{
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	return s_texturemask;
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}
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