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path: root/Source/Core/VideoBackends/Software/Src/Tev.cpp
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-rw-r--r--Source/Core/VideoBackends/Software/Src/Tev.cpp874
1 files changed, 874 insertions, 0 deletions
diff --git a/Source/Core/VideoBackends/Software/Src/Tev.cpp b/Source/Core/VideoBackends/Software/Src/Tev.cpp
new file mode 100644
index 0000000000..effe1d3261
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/Src/Tev.cpp
@@ -0,0 +1,874 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "Common.h"
+
+#include "Tev.h"
+#include "EfbInterface.h"
+#include "TextureSampler.h"
+#include "XFMemLoader.h"
+#include "SWPixelEngine.h"
+#include "SWStatistics.h"
+#include "SWVideoConfig.h"
+#include "DebugUtil.h"
+
+#include <cmath>
+
+#ifdef _DEBUG
+#define ALLOW_TEV_DUMPS 1
+#else
+#define ALLOW_TEV_DUMPS 0
+#endif
+
+void Tev::Init()
+{
+ FixedConstants[0] = 0;
+ FixedConstants[1] = 31;
+ FixedConstants[2] = 63;
+ FixedConstants[3] = 95;
+ FixedConstants[4] = 127;
+ FixedConstants[5] = 159;
+ FixedConstants[6] = 191;
+ FixedConstants[7] = 223;
+ FixedConstants[8] = 255;
+
+ for (int i = 0; i < 4; i++)
+ Zero16[i] = 0;
+
+ m_ColorInputLUT[0][RED_INP] = &Reg[0][RED_C]; m_ColorInputLUT[0][GRN_INP] = &Reg[0][GRN_C]; m_ColorInputLUT[0][BLU_INP] = &Reg[0][BLU_C]; // prev.rgb
+ m_ColorInputLUT[1][RED_INP] = &Reg[0][ALP_C]; m_ColorInputLUT[1][GRN_INP] = &Reg[0][ALP_C]; m_ColorInputLUT[1][BLU_INP] = &Reg[0][ALP_C]; // prev.aaa
+ m_ColorInputLUT[2][RED_INP] = &Reg[1][RED_C]; m_ColorInputLUT[2][GRN_INP] = &Reg[1][GRN_C]; m_ColorInputLUT[2][BLU_INP] = &Reg[1][BLU_C]; // c0.rgb
+ m_ColorInputLUT[3][RED_INP] = &Reg[1][ALP_C]; m_ColorInputLUT[3][GRN_INP] = &Reg[1][ALP_C]; m_ColorInputLUT[3][BLU_INP] = &Reg[1][ALP_C]; // c0.aaa
+ m_ColorInputLUT[4][RED_INP] = &Reg[2][RED_C]; m_ColorInputLUT[4][GRN_INP] = &Reg[2][GRN_C]; m_ColorInputLUT[4][BLU_INP] = &Reg[2][BLU_C]; // c1.rgb
+ m_ColorInputLUT[5][RED_INP] = &Reg[2][ALP_C]; m_ColorInputLUT[5][GRN_INP] = &Reg[2][ALP_C]; m_ColorInputLUT[5][BLU_INP] = &Reg[2][ALP_C]; // c1.aaa
+ m_ColorInputLUT[6][RED_INP] = &Reg[3][RED_C]; m_ColorInputLUT[6][GRN_INP] = &Reg[3][GRN_C]; m_ColorInputLUT[6][BLU_INP] = &Reg[3][BLU_C]; // c2.rgb
+ m_ColorInputLUT[7][RED_INP] = &Reg[3][ALP_C]; m_ColorInputLUT[7][GRN_INP] = &Reg[3][ALP_C]; m_ColorInputLUT[7][BLU_INP] = &Reg[3][ALP_C]; // c2.aaa
+ m_ColorInputLUT[8][RED_INP] = &TexColor[RED_C]; m_ColorInputLUT[8][GRN_INP] = &TexColor[GRN_C]; m_ColorInputLUT[8][BLU_INP] = &TexColor[BLU_C]; // tex.rgb
+ m_ColorInputLUT[9][RED_INP] = &TexColor[ALP_C]; m_ColorInputLUT[9][GRN_INP] = &TexColor[ALP_C]; m_ColorInputLUT[9][BLU_INP] = &TexColor[ALP_C]; // tex.aaa
+ m_ColorInputLUT[10][RED_INP] = &RasColor[RED_C]; m_ColorInputLUT[10][GRN_INP] = &RasColor[GRN_C]; m_ColorInputLUT[10][BLU_INP] = &RasColor[BLU_C]; // ras.rgb
+ m_ColorInputLUT[11][RED_INP] = &RasColor[ALP_C]; m_ColorInputLUT[11][GRN_INP] = &RasColor[ALP_C]; m_ColorInputLUT[11][BLU_INP] = &RasColor[ALP_C]; // ras.rgb
+ m_ColorInputLUT[12][RED_INP] = &FixedConstants[8]; m_ColorInputLUT[12][GRN_INP] = &FixedConstants[8]; m_ColorInputLUT[12][BLU_INP] = &FixedConstants[8]; // one
+ m_ColorInputLUT[13][RED_INP] = &FixedConstants[4]; m_ColorInputLUT[13][GRN_INP] = &FixedConstants[4]; m_ColorInputLUT[13][BLU_INP] = &FixedConstants[4]; // half
+ m_ColorInputLUT[14][RED_INP] = &StageKonst[RED_C]; m_ColorInputLUT[14][GRN_INP] = &StageKonst[GRN_C]; m_ColorInputLUT[14][BLU_INP] = &StageKonst[BLU_C]; // konst
+ m_ColorInputLUT[15][RED_INP] = &FixedConstants[0]; m_ColorInputLUT[15][GRN_INP] = &FixedConstants[0]; m_ColorInputLUT[15][BLU_INP] = &FixedConstants[0]; // zero
+
+ m_AlphaInputLUT[0] = Reg[0]; // prev
+ m_AlphaInputLUT[1] = Reg[1]; // c0
+ m_AlphaInputLUT[2] = Reg[2]; // c1
+ m_AlphaInputLUT[3] = Reg[3]; // c2
+ m_AlphaInputLUT[4] = TexColor; // tex
+ m_AlphaInputLUT[5] = RasColor; // ras
+ m_AlphaInputLUT[6] = StageKonst; // konst
+ m_AlphaInputLUT[7] = Zero16; // zero
+
+ for (int comp = 0; comp < 4; comp++)
+ {
+ m_KonstLUT[0][comp] = &FixedConstants[8];
+ m_KonstLUT[1][comp] = &FixedConstants[7];
+ m_KonstLUT[2][comp] = &FixedConstants[6];
+ m_KonstLUT[3][comp] = &FixedConstants[5];
+ m_KonstLUT[4][comp] = &FixedConstants[4];
+ m_KonstLUT[5][comp] = &FixedConstants[3];
+ m_KonstLUT[6][comp] = &FixedConstants[2];
+ m_KonstLUT[7][comp] = &FixedConstants[1];
+
+ m_KonstLUT[12][comp] = &KonstantColors[0][comp];
+ m_KonstLUT[13][comp] = &KonstantColors[1][comp];
+ m_KonstLUT[14][comp] = &KonstantColors[2][comp];
+ m_KonstLUT[15][comp] = &KonstantColors[3][comp];
+
+ m_KonstLUT[16][comp] = &KonstantColors[0][RED_C];
+ m_KonstLUT[17][comp] = &KonstantColors[1][RED_C];
+ m_KonstLUT[18][comp] = &KonstantColors[2][RED_C];
+ m_KonstLUT[19][comp] = &KonstantColors[3][RED_C];
+ m_KonstLUT[20][comp] = &KonstantColors[0][GRN_C];
+ m_KonstLUT[21][comp] = &KonstantColors[1][GRN_C];
+ m_KonstLUT[22][comp] = &KonstantColors[2][GRN_C];
+ m_KonstLUT[23][comp] = &KonstantColors[3][GRN_C];
+ m_KonstLUT[24][comp] = &KonstantColors[0][BLU_C];
+ m_KonstLUT[25][comp] = &KonstantColors[1][BLU_C];
+ m_KonstLUT[26][comp] = &KonstantColors[2][BLU_C];
+ m_KonstLUT[27][comp] = &KonstantColors[3][BLU_C];
+ m_KonstLUT[28][comp] = &KonstantColors[0][ALP_C];
+ m_KonstLUT[29][comp] = &KonstantColors[1][ALP_C];
+ m_KonstLUT[30][comp] = &KonstantColors[2][ALP_C];
+ m_KonstLUT[31][comp] = &KonstantColors[3][ALP_C];
+ }
+
+ m_BiasLUT[0] = 0;
+ m_BiasLUT[1] = 128;
+ m_BiasLUT[2] = -128;
+ m_BiasLUT[3] = 0;
+
+ m_ScaleLShiftLUT[0] = 0;
+ m_ScaleLShiftLUT[1] = 1;
+ m_ScaleLShiftLUT[2] = 2;
+ m_ScaleLShiftLUT[3] = 0;
+
+ m_ScaleRShiftLUT[0] = 0;
+ m_ScaleRShiftLUT[1] = 0;
+ m_ScaleRShiftLUT[2] = 0;
+ m_ScaleRShiftLUT[3] = 1;
+}
+
+inline s16 Clamp255(s16 in)
+{
+ return in>255?255:(in<0?0:in);
+}
+
+inline s16 Clamp1024(s16 in)
+{
+ return in>1023?1023:(in<-1024?-1024:in);
+}
+
+void Tev::SetRasColor(int colorChan, int swaptable)
+{
+ switch(colorChan)
+ {
+ case 0: // Color0
+ {
+ u8 *color = Color[0];
+ RasColor[RED_C] = color[bpmem.tevksel[swaptable].swap1];
+ RasColor[GRN_C] = color[bpmem.tevksel[swaptable].swap2];
+ swaptable++;
+ RasColor[BLU_C] = color[bpmem.tevksel[swaptable].swap1];
+ RasColor[ALP_C] = color[bpmem.tevksel[swaptable].swap2];
+ }
+ break;
+ case 1: // Color1
+ {
+ u8 *color = Color[1];
+ RasColor[RED_C] = color[bpmem.tevksel[swaptable].swap1];
+ RasColor[GRN_C] = color[bpmem.tevksel[swaptable].swap2];
+ swaptable++;
+ RasColor[BLU_C] = color[bpmem.tevksel[swaptable].swap1];
+ RasColor[ALP_C] = color[bpmem.tevksel[swaptable].swap2];
+ }
+ break;
+ case 5: // alpha bump
+ {
+ for(int i = 0; i < 4; i++)
+ RasColor[i] = AlphaBump;
+ }
+ break;
+ case 6: // alpha bump normalized
+ {
+ u8 normalized = AlphaBump | AlphaBump >> 5;
+ for(int i = 0; i < 4; i++)
+ RasColor[i] = normalized;
+ }
+ break;
+ default: // zero
+ {
+ for(int i = 0; i < 4; i++)
+ RasColor[i] = 0;
+ }
+ break;
+ }
+}
+
+void Tev::DrawColorRegular(TevStageCombiner::ColorCombiner &cc)
+{
+ InputRegType InputReg;
+
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.a = *m_ColorInputLUT[cc.a][i];
+ InputReg.b = *m_ColorInputLUT[cc.b][i];
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+
+ u16 c = InputReg.c + (InputReg.c >> 7);
+
+ s32 temp = InputReg.a * (256 - c) + (InputReg.b * c);
+ temp = cc.op?(-temp >> 8):(temp >> 8);
+
+ s32 result = InputReg.d + temp + m_BiasLUT[cc.bias];
+ result = result << m_ScaleLShiftLUT[cc.shift];
+ result = result >> m_ScaleRShiftLUT[cc.shift];
+
+ Reg[cc.dest][BLU_C + i] = result;
+ }
+}
+
+void Tev::DrawColorCompare(TevStageCombiner::ColorCombiner &cc)
+{
+ int cmp = (cc.shift<<1)|cc.op|8; // comparemode stored here
+
+ u32 a;
+ u32 b;
+
+ InputRegType InputReg;
+
+ switch(cmp) {
+ case TEVCMP_R8_GT:
+ {
+ a = *m_ColorInputLUT[cc.a][RED_INP] & 0xff;
+ b = *m_ColorInputLUT[cc.b][RED_INP] & 0xff;
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ }
+ break;
+
+ case TEVCMP_R8_EQ:
+ {
+ a = *m_ColorInputLUT[cc.a][RED_INP] & 0xff;
+ b = *m_ColorInputLUT[cc.b][RED_INP] & 0xff;
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ }
+ break;
+ case TEVCMP_GR16_GT:
+ {
+ a = ((*m_ColorInputLUT[cc.a][GRN_INP] & 0xff) << 8) | (*m_ColorInputLUT[cc.a][RED_INP] & 0xff);
+ b = ((*m_ColorInputLUT[cc.b][GRN_INP] & 0xff) << 8) | (*m_ColorInputLUT[cc.b][RED_INP] & 0xff);
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ }
+ break;
+ case TEVCMP_GR16_EQ:
+ {
+ a = ((*m_ColorInputLUT[cc.a][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.a][RED_INP] & 0xff);
+ b = ((*m_ColorInputLUT[cc.b][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.b][RED_INP] & 0xff);
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ }
+ break;
+ case TEVCMP_BGR24_GT:
+ {
+ a = ((*m_ColorInputLUT[cc.a][BLU_C] & 0xff) << 16) | ((*m_ColorInputLUT[cc.a][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.a][RED_INP] & 0xff);
+ b = ((*m_ColorInputLUT[cc.b][BLU_C] & 0xff) << 16) | ((*m_ColorInputLUT[cc.b][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.b][RED_INP] & 0xff);
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ }
+ break;
+ case TEVCMP_BGR24_EQ:
+ {
+ a = ((*m_ColorInputLUT[cc.a][BLU_C] & 0xff) << 16) | ((*m_ColorInputLUT[cc.a][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.a][RED_INP] & 0xff);
+ b = ((*m_ColorInputLUT[cc.b][BLU_C] & 0xff) << 16) | ((*m_ColorInputLUT[cc.b][GRN_C] & 0xff) << 8) | (*m_ColorInputLUT[cc.b][RED_INP] & 0xff);
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ }
+ break;
+ case TEVCMP_RGB8_GT:
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.a = *m_ColorInputLUT[cc.a][i];
+ InputReg.b = *m_ColorInputLUT[cc.b][i];
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((InputReg.a > InputReg.b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_RGB8_EQ:
+ for (int i = 0; i < 3; i++)
+ {
+ InputReg.a = *m_ColorInputLUT[cc.a][i];
+ InputReg.b = *m_ColorInputLUT[cc.b][i];
+ InputReg.c = *m_ColorInputLUT[cc.c][i];
+ InputReg.d = *m_ColorInputLUT[cc.d][i];
+ Reg[cc.dest][BLU_C + i] = InputReg.d + ((InputReg.a == InputReg.b) ? InputReg.c : 0);
+ }
+ break;
+ }
+}
+
+void Tev::DrawAlphaRegular(TevStageCombiner::AlphaCombiner &ac)
+{
+ InputRegType InputReg;
+
+ InputReg.a = m_AlphaInputLUT[ac.a][ALP_C];
+ InputReg.b = m_AlphaInputLUT[ac.b][ALP_C];
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+
+ u16 c = InputReg.c + (InputReg.c >> 7);
+
+ s32 temp = InputReg.a * (256 - c) + (InputReg.b * c);
+ temp = ac.op?(-temp >> 8):(temp >> 8);
+
+ s32 result = InputReg.d + temp + m_BiasLUT[ac.bias];
+ result = result << m_ScaleLShiftLUT[ac.shift];
+ result = result >> m_ScaleRShiftLUT[ac.shift];
+
+ Reg[ac.dest][ALP_C] = result;
+}
+
+void Tev::DrawAlphaCompare(TevStageCombiner::AlphaCombiner &ac)
+{
+ int cmp = (ac.shift<<1)|ac.op|8; // comparemode stored here
+
+ u32 a;
+ u32 b;
+
+ InputRegType InputReg;
+
+ switch(cmp) {
+ case TEVCMP_R8_GT:
+ {
+ a = m_AlphaInputLUT[ac.a][RED_C] & 0xff;
+ b = m_AlphaInputLUT[ac.b][RED_C] & 0xff;
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ break;
+
+ case TEVCMP_R8_EQ:
+ {
+ a = m_AlphaInputLUT[ac.a][RED_C] & 0xff;
+ b = m_AlphaInputLUT[ac.b][RED_C] & 0xff;
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_GR16_GT:
+ {
+ a = ((m_AlphaInputLUT[ac.a][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.a][RED_C] & 0xff);
+ b = ((m_AlphaInputLUT[ac.b][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.b][RED_C] & 0xff);
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_GR16_EQ:
+ {
+ a = ((m_AlphaInputLUT[ac.a][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.a][RED_C] & 0xff);
+ b = ((m_AlphaInputLUT[ac.b][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.b][RED_C] & 0xff);
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_BGR24_GT:
+ {
+ a = ((m_AlphaInputLUT[ac.a][BLU_C] & 0xff) << 16) | ((m_AlphaInputLUT[ac.a][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.a][RED_C] & 0xff);
+ b = ((m_AlphaInputLUT[ac.b][BLU_C] & 0xff) << 16) | ((m_AlphaInputLUT[ac.b][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.b][RED_C] & 0xff);
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a > b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_BGR24_EQ:
+ {
+ a = ((m_AlphaInputLUT[ac.a][BLU_C] & 0xff) << 16) | ((m_AlphaInputLUT[ac.a][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.a][RED_C] & 0xff);
+ b = ((m_AlphaInputLUT[ac.b][BLU_C] & 0xff) << 16) | ((m_AlphaInputLUT[ac.b][GRN_C] & 0xff) << 8) | (m_AlphaInputLUT[ac.b][RED_C] & 0xff);
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((a == b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_A8_GT:
+ {
+ InputReg.a = m_AlphaInputLUT[ac.a][ALP_C];
+ InputReg.b = m_AlphaInputLUT[ac.b][ALP_C];
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((InputReg.a > InputReg.b) ? InputReg.c : 0);
+ }
+ break;
+ case TEVCMP_A8_EQ:
+ {
+ InputReg.a = m_AlphaInputLUT[ac.a][ALP_C];
+ InputReg.b = m_AlphaInputLUT[ac.b][ALP_C];
+ InputReg.c = m_AlphaInputLUT[ac.c][ALP_C];
+ InputReg.d = m_AlphaInputLUT[ac.d][ALP_C];
+ Reg[ac.dest][ALP_C] = InputReg.d + ((InputReg.a == InputReg.b) ? InputReg.c : 0);
+ }
+ break;
+ }
+}
+
+static bool AlphaCompare(int alpha, int ref, int comp)
+{
+ switch(comp) {
+ case ALPHACMP_ALWAYS: return true;
+ case ALPHACMP_NEVER: return false;
+ case ALPHACMP_LEQUAL: return alpha <= ref;
+ case ALPHACMP_LESS: return alpha < ref;
+ case ALPHACMP_GEQUAL: return alpha >= ref;
+ case ALPHACMP_GREATER: return alpha > ref;
+ case ALPHACMP_EQUAL: return alpha == ref;
+ case ALPHACMP_NEQUAL: return alpha != ref;
+ }
+ return true;
+}
+
+static bool TevAlphaTest(int alpha)
+{
+ bool comp0 = AlphaCompare(alpha, bpmem.alpha_test.ref0, bpmem.alpha_test.comp0);
+ bool comp1 = AlphaCompare(alpha, bpmem.alpha_test.ref1, bpmem.alpha_test.comp1);
+
+ switch (bpmem.alpha_test.logic)
+ {
+ case 0: return comp0 && comp1; // and
+ case 1: return comp0 || comp1; // or
+ case 2: return comp0 ^ comp1; // xor
+ case 3: return !(comp0 ^ comp1); // xnor
+ }
+ return true;
+}
+
+inline s32 WrapIndirectCoord(s32 coord, int wrapMode)
+{
+ switch (wrapMode)
+ {
+ case ITW_OFF:
+ return coord;
+ case ITW_256:
+ return (coord % (256 << 7));
+ case ITW_128:
+ return (coord % (128 << 7));
+ case ITW_64:
+ return (coord % (64 << 7));
+ case ITW_32:
+ return (coord % (32 << 7));
+ case ITW_16:
+ return (coord % (16 << 7));
+ case ITW_0:
+ return 0;
+ }
+ return 0;
+}
+
+void Tev::Indirect(unsigned int stageNum, s32 s, s32 t)
+{
+ TevStageIndirect &indirect = bpmem.tevind[stageNum];
+ u8 *indmap = IndirectTex[indirect.bt];
+
+ s32 indcoord[3];
+
+ // alpha bump select
+ switch (indirect.bs)
+ {
+ case ITBA_OFF:
+ AlphaBump = 0;
+ break;
+ case ITBA_S:
+ AlphaBump = indmap[TextureSampler::ALP_SMP];
+ break;
+ case ITBA_T:
+ AlphaBump = indmap[TextureSampler::BLU_SMP];
+ break;
+ case ITBA_U:
+ AlphaBump = indmap[TextureSampler::GRN_SMP];
+ break;
+ }
+
+ // bias select
+ s16 biasValue = indirect.fmt==ITF_8?-128:1;
+ s16 bias[3];
+ bias[0] = indirect.bias&1?biasValue:0;
+ bias[1] = indirect.bias&2?biasValue:0;
+ bias[2] = indirect.bias&4?biasValue:0;
+
+ // format
+ switch(indirect.fmt)
+ {
+ case ITF_8:
+ indcoord[0] = indmap[TextureSampler::ALP_SMP] + bias[0];
+ indcoord[1] = indmap[TextureSampler::BLU_SMP] + bias[1];
+ indcoord[2] = indmap[TextureSampler::GRN_SMP] + bias[2];
+ AlphaBump = AlphaBump & 0xf8;
+ break;
+ case ITF_5:
+ indcoord[0] = (indmap[TextureSampler::ALP_SMP] & 0x1f) + bias[0];
+ indcoord[1] = (indmap[TextureSampler::BLU_SMP] & 0x1f) + bias[1];
+ indcoord[2] = (indmap[TextureSampler::GRN_SMP] & 0x1f) + bias[2];
+ AlphaBump = AlphaBump & 0xe0;
+ break;
+ case ITF_4:
+ indcoord[0] = (indmap[TextureSampler::ALP_SMP] & 0x0f) + bias[0];
+ indcoord[1] = (indmap[TextureSampler::BLU_SMP] & 0x0f) + bias[1];
+ indcoord[2] = (indmap[TextureSampler::GRN_SMP] & 0x0f) + bias[2];
+ AlphaBump = AlphaBump & 0xf0;
+ break;
+ case ITF_3:
+ indcoord[0] = (indmap[TextureSampler::ALP_SMP] & 0x07) + bias[0];
+ indcoord[1] = (indmap[TextureSampler::BLU_SMP] & 0x07) + bias[1];
+ indcoord[2] = (indmap[TextureSampler::GRN_SMP] & 0x07) + bias[2];
+ AlphaBump = AlphaBump & 0xf8;
+ break;
+ default:
+ PanicAlert("Tev::Indirect");
+ return;
+ }
+
+ s64 indtevtrans[2] = { 0,0 };
+
+ // matrix multiply
+ int indmtxid = indirect.mid & 3;
+ if (indmtxid)
+ {
+ IND_MTX &indmtx = bpmem.indmtx[indmtxid - 1];
+ int scale = ((u32)indmtx.col0.s0 << 0) |
+ ((u32)indmtx.col1.s1 << 2) |
+ ((u32)indmtx.col2.s2 << 4);
+
+ int shift;
+
+ switch (indirect.mid & 12)
+ {
+ case 0:
+ shift = 3 + (17 - scale);
+ indtevtrans[0] = indmtx.col0.ma * indcoord[0] + indmtx.col1.mc * indcoord[1] + indmtx.col2.me * indcoord[2];
+ indtevtrans[1] = indmtx.col0.mb * indcoord[0] + indmtx.col1.md * indcoord[1] + indmtx.col2.mf * indcoord[2];
+ break;
+ case 4: // s matrix
+ shift = 8 + (17 - scale);
+ indtevtrans[0] = s * indcoord[0];
+ indtevtrans[1] = t * indcoord[0];
+ break;
+ case 8: // t matrix
+ shift = 8 + (17 - scale);
+ indtevtrans[0] = s * indcoord[1];
+ indtevtrans[1] = t * indcoord[1];
+ break;
+ default:
+ return;
+ }
+
+ indtevtrans[0] = shift >= 0 ? indtevtrans[0] >> shift : indtevtrans[0] << -shift;
+ indtevtrans[1] = shift >= 0 ? indtevtrans[1] >> shift : indtevtrans[1] << -shift;
+ }
+
+ if (indirect.fb_addprev)
+ {
+ TexCoord.s += (int)(WrapIndirectCoord(s, indirect.sw) + indtevtrans[0]);
+ TexCoord.t += (int)(WrapIndirectCoord(t, indirect.tw) + indtevtrans[1]);
+ }
+ else
+ {
+ TexCoord.s = (int)(WrapIndirectCoord(s, indirect.sw) + indtevtrans[0]);
+ TexCoord.t = (int)(WrapIndirectCoord(t, indirect.tw) + indtevtrans[1]);
+ }
+}
+
+void Tev::Draw()
+{
+ _assert_(Position[0] >= 0 && Position[0] < EFB_WIDTH);
+ _assert_(Position[1] >= 0 && Position[1] < EFB_HEIGHT);
+
+ INCSTAT(swstats.thisFrame.tevPixelsIn);
+
+ for (unsigned int stageNum = 0; stageNum < bpmem.genMode.numindstages; stageNum++)
+ {
+ int stageNum2 = stageNum >> 1;
+ int stageOdd = stageNum&1;
+
+ u32 texcoordSel = bpmem.tevindref.getTexCoord(stageNum);
+ u32 texmap = bpmem.tevindref.getTexMap(stageNum);
+
+ const TEXSCALE& texscale = bpmem.texscale[stageNum2];
+ s32 scaleS = stageOdd ? texscale.ss1:texscale.ss0;
+ s32 scaleT = stageOdd ? texscale.ts1:texscale.ts0;
+
+ TextureSampler::Sample(Uv[texcoordSel].s >> scaleS, Uv[texcoordSel].t >> scaleT,
+ IndirectLod[stageNum], IndirectLinear[stageNum], texmap, IndirectTex[stageNum]);
+
+#if ALLOW_TEV_DUMPS
+ if (g_SWVideoConfig.bDumpTevStages)
+ {
+ u8 stage[4] = { IndirectTex[stageNum][TextureSampler::ALP_SMP],
+ IndirectTex[stageNum][TextureSampler::BLU_SMP],
+ IndirectTex[stageNum][TextureSampler::GRN_SMP],
+ 255};
+ DebugUtil::DrawTempBuffer(stage, INDIRECT + stageNum);
+ }
+#endif
+ }
+
+ for (unsigned int stageNum = 0; stageNum <= bpmem.genMode.numtevstages; stageNum++)
+ {
+ int stageNum2 = stageNum >> 1;
+ int stageOdd = stageNum&1;
+ TwoTevStageOrders &order = bpmem.tevorders[stageNum2];
+ TevKSel &kSel = bpmem.tevksel[stageNum2];
+
+ // stage combiners
+ TevStageCombiner::ColorCombiner &cc = bpmem.combiners[stageNum].colorC;
+ TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[stageNum].alphaC;
+
+ int texcoordSel = order.getTexCoord(stageOdd);
+ int texmap = order.getTexMap(stageOdd);
+
+ Indirect(stageNum, Uv[texcoordSel].s, Uv[texcoordSel].t);
+
+ // sample texture
+ if (order.getEnable(stageOdd))
+ {
+ // RGBA
+ u8 texel[4];
+
+ TextureSampler::Sample(TexCoord.s, TexCoord.t, TextureLod[stageNum], TextureLinear[stageNum], texmap, texel);
+
+#if ALLOW_TEV_DUMPS
+ if (g_SWVideoConfig.bDumpTevTextureFetches)
+ DebugUtil::DrawTempBuffer(texel, DIRECT_TFETCH + stageNum);
+#endif
+
+ int swaptable = ac.tswap * 2;
+
+ TexColor[RED_C] = texel[bpmem.tevksel[swaptable].swap1];
+ TexColor[GRN_C] = texel[bpmem.tevksel[swaptable].swap2];
+ swaptable++;
+ TexColor[BLU_C] = texel[bpmem.tevksel[swaptable].swap1];
+ TexColor[ALP_C] = texel[bpmem.tevksel[swaptable].swap2];
+ }
+
+ // set konst for this stage
+ int kc = kSel.getKC(stageOdd);
+ int ka = kSel.getKA(stageOdd);
+ StageKonst[RED_C] = *(m_KonstLUT[kc][RED_C]);
+ StageKonst[GRN_C] = *(m_KonstLUT[kc][GRN_C]);
+ StageKonst[BLU_C] = *(m_KonstLUT[kc][BLU_C]);
+ StageKonst[ALP_C] = *(m_KonstLUT[ka][ALP_C]);
+
+ // set color
+ SetRasColor(order.getColorChan(stageOdd), ac.rswap * 2);
+
+ // combine inputs
+ if (cc.bias != 3)
+ DrawColorRegular(cc);
+ else
+ DrawColorCompare(cc);
+
+ if (cc.clamp)
+ {
+ Reg[cc.dest][RED_C] = Clamp255(Reg[cc.dest][RED_C]);
+ Reg[cc.dest][GRN_C] = Clamp255(Reg[cc.dest][GRN_C]);
+ Reg[cc.dest][BLU_C] = Clamp255(Reg[cc.dest][BLU_C]);
+ }
+ else
+ {
+ Reg[cc.dest][RED_C] = Clamp1024(Reg[cc.dest][RED_C]);
+ Reg[cc.dest][GRN_C] = Clamp1024(Reg[cc.dest][GRN_C]);
+ Reg[cc.dest][BLU_C] = Clamp1024(Reg[cc.dest][BLU_C]);
+ }
+
+ if (ac.bias != 3)
+ DrawAlphaRegular(ac);
+ else
+ DrawAlphaCompare(ac);
+
+ if (ac.clamp)
+ Reg[ac.dest][ALP_C] = Clamp255(Reg[ac.dest][ALP_C]);
+ else
+ Reg[ac.dest][ALP_C] = Clamp1024(Reg[ac.dest][ALP_C]);
+
+#if ALLOW_TEV_DUMPS
+ if (g_SWVideoConfig.bDumpTevStages)
+ {
+ u8 stage[4] = {(u8)Reg[0][RED_C], (u8)Reg[0][GRN_C], (u8)Reg[0][BLU_C], (u8)Reg[0][ALP_C]};
+ DebugUtil::DrawTempBuffer(stage, DIRECT + stageNum);
+ }
+#endif
+ }
+
+ // convert to 8 bits per component
+ // the results of the last tev stage are put onto the screen,
+ // regardless of the used destination register - TODO: Verify!
+ u32 color_index = bpmem.combiners[bpmem.genMode.numtevstages].colorC.dest;
+ u32 alpha_index = bpmem.combiners[bpmem.genMode.numtevstages].alphaC.dest;
+ u8 output[4] = {(u8)Reg[alpha_index][ALP_C], (u8)Reg[color_index][BLU_C], (u8)Reg[color_index][GRN_C], (u8)Reg[color_index][RED_C]};
+
+ if (!TevAlphaTest(output[ALP_C]))
+ return;
+
+ // z texture
+ if (bpmem.ztex2.op)
+ {
+ u32 ztex = bpmem.ztex1.bias;
+ switch (bpmem.ztex2.type)
+ {
+ case 0: // 8 bit
+ ztex += TexColor[ALP_C];
+ break;
+ case 1: // 16 bit
+ ztex += TexColor[ALP_C] << 8 | TexColor[RED_C];
+ break;
+ case 2: // 24 bit
+ ztex += TexColor[RED_C] << 16 | TexColor[GRN_C] << 8 | TexColor[BLU_C];
+ break;
+ }
+
+ if (bpmem.ztex2.op == ZTEXTURE_ADD)
+ ztex += Position[2];
+
+ Position[2] = ztex & 0x00ffffff;
+ }
+
+ // fog
+ if (bpmem.fog.c_proj_fsel.fsel)
+ {
+ float ze;
+
+ if (bpmem.fog.c_proj_fsel.proj == 0)
+ {
+ // perspective
+ // ze = A/(B - (Zs >> B_SHF))
+ s32 denom = bpmem.fog.b_magnitude - (Position[2] >> bpmem.fog.b_shift);
+ //in addition downscale magnitude and zs to 0.24 bits
+ ze = (bpmem.fog.a.GetA() * 16777215.0f) / (float)denom;
+ }
+ else
+ {
+ // orthographic
+ // ze = a*Zs
+ //in addition downscale zs to 0.24 bits
+ ze = bpmem.fog.a.GetA() * ((float)Position[2] / 16777215.0f);
+
+ }
+
+ if(bpmem.fogRange.Base.Enabled)
+ {
+ // TODO: This is untested and should definitely be checked against real hw.
+ // - No idea if offset is really normalized against the viewport width or against the projection matrix or yet something else
+ // - scaling of the "k" coefficient isn't clear either.
+
+ // First, calculate the offset from the viewport center (normalized to 0..1)
+ float offset = (Position[0] - (bpmem.fogRange.Base.Center - 342)) / (float)swxfregs.viewport.wd;
+ // Based on that, choose the index such that points which are far away from the z-axis use the 10th "k" value and such that central points use the first value.
+ int index = (int) (9 - std::abs(offset) * 9.f);
+ index = (index < 0) ? 0 : (index > 9) ? 9 : index; // TODO: Shouldn't be necessary!
+ // Look up coefficient... Seems like multiplying by 4 makes Fortune Street work properly (fog is too strong without the factor)
+ float k = bpmem.fogRange.K[index/2].GetValue(index%2) * 4.f;
+ float x_adjust = sqrt(offset*offset + k*k)/k;
+ ze *= x_adjust; // NOTE: This is basically dividing by a cosine (hidden behind GXInitFogAdjTable): 1/cos = c/b = sqrt(a^2+b^2)/b
+ }
+
+ ze -= bpmem.fog.c_proj_fsel.GetC();
+
+ // clamp 0 to 1
+ float fog = (ze<0.0f) ? 0.0f : ((ze>1.0f) ? 1.0f : ze);
+
+ switch (bpmem.fog.c_proj_fsel.fsel)
+ {
+ case 4: // exp
+ fog = 1.0f - pow(2.0f, -8.0f * fog);
+ break;
+ case 5: // exp2
+ fog = 1.0f - pow(2.0f, -8.0f * fog * fog);
+ break;
+ case 6: // backward exp
+ fog = 1.0f - fog;
+ fog = pow(2.0f, -8.0f * fog);
+ break;
+ case 7: // backward exp2
+ fog = 1.0f - fog;
+ fog = pow(2.0f, -8.0f * fog * fog);
+ break;
+ }
+
+ // lerp from output to fog color
+ u32 fogInt = (u32)(fog * 256);
+ u32 invFog = 256 - fogInt;
+
+ output[RED_C] = (output[RED_C] * invFog + fogInt * bpmem.fog.color.r) >> 8;
+ output[GRN_C] = (output[GRN_C] * invFog + fogInt * bpmem.fog.color.g) >> 8;
+ output[BLU_C] = (output[BLU_C] * invFog + fogInt * bpmem.fog.color.b) >> 8;
+ }
+
+ bool late_ztest = !bpmem.zcontrol.early_ztest || !g_SWVideoConfig.bZComploc;
+ if (late_ztest && bpmem.zmode.testenable)
+ {
+ // TODO: Check against hw if these values get incremented even if depth testing is disabled
+ SWPixelEngine::pereg.IncZInputQuadCount(false);
+
+ if (!EfbInterface::ZCompare(Position[0], Position[1], Position[2]))
+ return;
+
+ SWPixelEngine::pereg.IncZOutputQuadCount(false);
+ }
+
+#if ALLOW_TEV_DUMPS
+ if (g_SWVideoConfig.bDumpTevStages)
+ {
+ for (u32 i = 0; i < bpmem.genMode.numindstages; ++i)
+ DebugUtil::CopyTempBuffer(Position[0], Position[1], INDIRECT, i, "Indirect");
+ for (u32 i = 0; i <= bpmem.genMode.numtevstages; ++i)
+ DebugUtil::CopyTempBuffer(Position[0], Position[1], DIRECT, i, "Stage");
+ }
+
+ if (g_SWVideoConfig.bDumpTevTextureFetches)
+ {
+ for (u32 i = 0; i <= bpmem.genMode.numtevstages; ++i)
+ {
+ TwoTevStageOrders &order = bpmem.tevorders[i >> 1];
+ if (order.getEnable(i & 1))
+ DebugUtil::CopyTempBuffer(Position[0], Position[1], DIRECT_TFETCH, i, "TFetch");
+ }
+ }
+#endif
+
+ INCSTAT(swstats.thisFrame.tevPixelsOut);
+ SWPixelEngine::pereg.IncBlendInputQuadCount();
+
+ EfbInterface::BlendTev(Position[0], Position[1], output);
+}
+
+void Tev::SetRegColor(int reg, int comp, bool konst, s16 color)
+{
+ if (konst)
+ {
+ KonstantColors[reg][comp] = color;
+ }
+ else
+ {
+ Reg[reg][comp] = color;
+ }
+}
+
+void Tev::DoState(PointerWrap &p)
+{
+ p.DoArray(Reg, sizeof(Reg));
+
+ p.DoArray(KonstantColors, sizeof(KonstantColors));
+ p.DoArray(TexColor,4);
+ p.DoArray(RasColor,4);
+ p.DoArray(StageKonst,4);
+ p.DoArray(Zero16,4);
+
+ p.DoArray(FixedConstants,9);
+ p.Do(AlphaBump);
+ p.DoArray(IndirectTex, sizeof(IndirectTex));
+ p.Do(TexCoord);
+
+ p.DoArray(m_BiasLUT,4);
+ p.DoArray(m_ScaleLShiftLUT,4);
+ p.DoArray(m_ScaleRShiftLUT,4);
+
+ p.DoArray(Position,3);
+ p.DoArray(Color, sizeof(Color));
+ p.DoArray(Uv, 8);
+ p.DoArray(IndirectLod,4);
+ p.DoArray(IndirectLinear,4);
+ p.DoArray(TextureLod,16);
+ p.DoArray(TextureLinear,16);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2026-09-10 15:20:47 +0000