985 lines
34 KiB
C++
985 lines
34 KiB
C++
// Copyright (C) 2003 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/
|
|
|
|
#include <stdio.h>
|
|
#include <cmath>
|
|
#include <assert.h>
|
|
|
|
#include "Profiler.h"
|
|
#include "PixelShaderGen.h"
|
|
#include "XFMemory.h" // for texture projection mode
|
|
#include "BPMemory.h"
|
|
|
|
// Mash together all the inputs that contribute to the code of a generated pixel shader into
|
|
// a unique identifier, basically containing all the bits. Yup, it's a lot ....
|
|
// It would likely be a lot more efficient to build this incrementally as the attributes
|
|
// are set...
|
|
void GetPixelShaderId(PIXELSHADERUID &uid, u32 s_texturemask, u32 dstAlphaEnable)
|
|
{
|
|
u32 projtexcoords = 0;
|
|
for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages + 1; i++)
|
|
{
|
|
if (bpmem.tevorders[i/2].getEnable(i & 1))
|
|
{
|
|
int texcoord = bpmem.tevorders[i / 2].getTexCoord(i & 1);
|
|
if (xfregs.texcoords[texcoord].texmtxinfo.projection)
|
|
projtexcoords |= 1 << texcoord;
|
|
}
|
|
}
|
|
uid.values[0] = (u32)bpmem.genMode.numtevstages |
|
|
((u32)bpmem.genMode.numindstages << 4) |
|
|
((u32)bpmem.genMode.numtexgens << 7) |
|
|
((u32)dstAlphaEnable << 11) |
|
|
((u32)((bpmem.alphaFunc.hex >> 16) & 0xff) << 12) |
|
|
(projtexcoords << 20) |
|
|
((u32)bpmem.ztex2.op << 28);
|
|
|
|
uid.values[0] = (uid.values[0] & ~0x0ff00000) | (projtexcoords << 20);
|
|
// swap table
|
|
for (int i = 0; i < 8; i += 2)
|
|
((u8*)&uid.values[1])[i / 2] = (bpmem.tevksel[i].hex & 0xf) | ((bpmem.tevksel[i + 1].hex & 0xf) << 4);
|
|
|
|
uid.values[2] = s_texturemask;
|
|
|
|
uid.values[3] = (u32)bpmem.fog.c_proj_fsel.fsel |
|
|
((u32)bpmem.fog.c_proj_fsel.proj << 3);
|
|
|
|
int hdr = 4;
|
|
u32* pcurvalue = &uid.values[hdr];
|
|
for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages + 1; ++i)
|
|
{
|
|
TevStageCombiner::ColorCombiner &cc = bpmem.combiners[i].colorC;
|
|
TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[i].alphaC;
|
|
|
|
u32 val0 = cc.hex&0xffffff;
|
|
u32 val1 = ac.hex&0xffffff;
|
|
val0 |= bpmem.tevksel[i / 2].getKC(i & 1) << 24;
|
|
val1 |= bpmem.tevksel[i / 2].getKA(i & 1) << 24;
|
|
pcurvalue[0] = val0;
|
|
pcurvalue[1] = val1;
|
|
pcurvalue += 2;
|
|
}
|
|
|
|
for (u32 i = 0; i < ((u32)bpmem.genMode.numtevstages+1) / 2; ++i)
|
|
{
|
|
u32 val0, val1;
|
|
if (bpmem.tevorders[i].hex & 0x40)
|
|
val0 = bpmem.tevorders[i].hex & 0x3ff;
|
|
else
|
|
val0 = bpmem.tevorders[i].hex & 0x380;
|
|
if (bpmem.tevorders[i].hex & 0x40000)
|
|
val1 = (bpmem.tevorders[i].hex & 0x3ff000) >> 12;
|
|
else
|
|
val1 = (bpmem.tevorders[i].hex & 0x380000) >> 12;
|
|
|
|
switch (i % 3) {
|
|
case 0: pcurvalue[0] = val0|(val1<<10); break;
|
|
case 1: pcurvalue[0] |= val0<<20; pcurvalue[1] = val1; pcurvalue++; break;
|
|
case 2: pcurvalue[1] |= (val0<<10)|(val1<<20); pcurvalue++; break;
|
|
default: PanicAlert("Uknown case for Tev Stages / 2: %08x", (i % 3));
|
|
}
|
|
}
|
|
|
|
if ((bpmem.genMode.numtevstages + 1) & 1) { // odd
|
|
u32 val0;
|
|
if (bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x40)
|
|
val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x3ff;
|
|
else
|
|
val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x380;
|
|
|
|
switch (bpmem.genMode.numtevstages % 3)
|
|
{
|
|
case 0: pcurvalue[0] = val0; break;
|
|
case 1: pcurvalue[0] |= val0 << 20; break;
|
|
case 2: pcurvalue[1] |= val0 << 10; pcurvalue++; break;
|
|
default: PanicAlert("Uknown case for Tev Stages: %08x", bpmem.genMode.numtevstages % 3);
|
|
}
|
|
}
|
|
|
|
if ((bpmem.genMode.numtevstages % 3) != 2)
|
|
++pcurvalue;
|
|
|
|
uid.tevstages = (u32)(pcurvalue - &uid.values[0] - hdr);
|
|
|
|
for (u32 i = 0; i < bpmem.genMode.numindstages; ++i)
|
|
{
|
|
u32 val = bpmem.tevind[i].hex & 0x1fffff; // 21 bits
|
|
switch (i % 3)
|
|
{
|
|
case 0: pcurvalue[0] = val; break;
|
|
case 1: pcurvalue[0] |= val << 21; pcurvalue[1] = val >> 11; ++pcurvalue; break;
|
|
case 2: pcurvalue[0] |= val << 10; ++pcurvalue; break;
|
|
default: PanicAlert("Uknown case for Ind Stages: %08x", (i % 3));
|
|
}
|
|
}
|
|
|
|
// yeah, well ....
|
|
uid.indstages = (u32)(pcurvalue - &uid.values[0] - (hdr - 1) - uid.tevstages);
|
|
}
|
|
|
|
// old tev->pixelshader notes
|
|
//
|
|
// color for this stage (alpha, color) is given by bpmem.tevorders[0].colorchan0
|
|
// konstant for this stage (alpha, color) is given by bpmem.tevksel
|
|
// inputs are given by bpmem.combiners[0].colorC.a/b/c/d << could be current chan color
|
|
// according to GXTevColorArg table above
|
|
// output is given by .outreg
|
|
// tevtemp is set according to swapmodetables and
|
|
|
|
static void WriteStage(char *&p, int n, u32 texture_mask, bool HLSL);
|
|
static void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, u32 texture_mask, bool HLSL);
|
|
static void WriteAlphaCompare(char *&p, int num, int comp);
|
|
static bool WriteAlphaTest(char *&p, bool HLSL);
|
|
static void WriteFog(char *&p);
|
|
|
|
const float epsilon8bit = 1.0f / 255.0f;
|
|
|
|
static const char *tevKSelTableC[] = // KCSEL
|
|
{
|
|
"1.0f,1.0f,1.0f", // 1 = 0x00
|
|
"0.875,0.875,0.875", // 7_8 = 0x01
|
|
"0.75,0.75,0.75", // 3_4 = 0x02
|
|
"0.625,0.625,0.625", // 5_8 = 0x03
|
|
"0.5,0.5,0.5", // 1_2 = 0x04
|
|
"0.375,0.375,0.375", // 3_8 = 0x05
|
|
"0.25,0.25,0.25", // 1_4 = 0x06
|
|
"0.125,0.125,0.125", // 1_8 = 0x07
|
|
"ERROR", // 0x08
|
|
"ERROR", // 0x09
|
|
"ERROR", // 0x0a
|
|
"ERROR", // 0x0b
|
|
I_KCOLORS"[0].rgb", // K0 = 0x0C
|
|
I_KCOLORS"[1].rgb", // K1 = 0x0D
|
|
I_KCOLORS"[2].rgb", // K2 = 0x0E
|
|
I_KCOLORS"[3].rgb", // K3 = 0x0F
|
|
I_KCOLORS"[0].rrr", // K0_R = 0x10
|
|
I_KCOLORS"[1].rrr", // K1_R = 0x11
|
|
I_KCOLORS"[2].rrr", // K2_R = 0x12
|
|
I_KCOLORS"[3].rrr", // K3_R = 0x13
|
|
I_KCOLORS"[0].ggg", // K0_G = 0x14
|
|
I_KCOLORS"[1].ggg", // K1_G = 0x15
|
|
I_KCOLORS"[2].ggg", // K2_G = 0x16
|
|
I_KCOLORS"[3].ggg", // K3_G = 0x17
|
|
I_KCOLORS"[0].bbb", // K0_B = 0x18
|
|
I_KCOLORS"[1].bbb", // K1_B = 0x19
|
|
I_KCOLORS"[2].bbb", // K2_B = 0x1A
|
|
I_KCOLORS"[3].bbb", // K3_B = 0x1B
|
|
I_KCOLORS"[0].aaa", // K0_A = 0x1C
|
|
I_KCOLORS"[1].aaa", // K1_A = 0x1D
|
|
I_KCOLORS"[2].aaa", // K2_A = 0x1E
|
|
I_KCOLORS"[3].aaa", // K3_A = 0x1F
|
|
};
|
|
|
|
static const char *tevKSelTableA[] = // KASEL
|
|
{
|
|
"1.0f", // 1 = 0x00
|
|
"0.875f",// 7_8 = 0x01
|
|
"0.75f", // 3_4 = 0x02
|
|
"0.625f",// 5_8 = 0x03
|
|
"0.5f", // 1_2 = 0x04
|
|
"0.375f",// 3_8 = 0x05
|
|
"0.25f", // 1_4 = 0x06
|
|
"0.125f",// 1_8 = 0x07
|
|
"ERROR", // 0x08
|
|
"ERROR", // 0x09
|
|
"ERROR", // 0x0a
|
|
"ERROR", // 0x0b
|
|
"ERROR", // 0x0c
|
|
"ERROR", // 0x0d
|
|
"ERROR", // 0x0e
|
|
"ERROR", // 0x0f
|
|
I_KCOLORS"[0].r", // K0_R = 0x10
|
|
I_KCOLORS"[1].r", // K1_R = 0x11
|
|
I_KCOLORS"[2].r", // K2_R = 0x12
|
|
I_KCOLORS"[3].r", // K3_R = 0x13
|
|
I_KCOLORS"[0].g", // K0_G = 0x14
|
|
I_KCOLORS"[1].g", // K1_G = 0x15
|
|
I_KCOLORS"[2].g", // K2_G = 0x16
|
|
I_KCOLORS"[3].g", // K3_G = 0x17
|
|
I_KCOLORS"[0].b", // K0_B = 0x18
|
|
I_KCOLORS"[1].b", // K1_B = 0x19
|
|
I_KCOLORS"[2].b", // K2_B = 0x1A
|
|
I_KCOLORS"[3].b", // K3_B = 0x1B
|
|
I_KCOLORS"[0].a", // K0_A = 0x1C
|
|
I_KCOLORS"[1].a", // K1_A = 0x1D
|
|
I_KCOLORS"[2].a", // K2_A = 0x1E
|
|
I_KCOLORS"[3].a", // K3_A = 0x1F
|
|
};
|
|
|
|
static const char *tevScaleTable[] = // CS
|
|
{
|
|
"1.0f", // SCALE_1
|
|
"2.0f", // SCALE_2
|
|
"4.0f", // SCALE_4
|
|
"0.5f", // DIVIDE_2
|
|
};
|
|
|
|
static const char *tevBiasTable[] = // TB
|
|
{
|
|
"", // ZERO,
|
|
"+0.5f", // ADDHALF,
|
|
"-0.5f", // SUBHALF,
|
|
"",
|
|
};
|
|
|
|
static const char *tevOpTable[] = { // TEV
|
|
"+", // TEVOP_ADD = 0,
|
|
"-", // TEVOP_SUB = 1,
|
|
};
|
|
|
|
//static const char *tevCompOpTable[] = { ">", "==" };
|
|
|
|
#define TEVCMP_R8 0
|
|
#define TEVCMP_GR16 1
|
|
#define TEVCMP_BGR24 2
|
|
#define TEVCMP_RGB8 3
|
|
|
|
static const char *tevCInputTable[] = // CC
|
|
{
|
|
"prev.rgb", // CPREV,
|
|
"prev.aaa", // APREV,
|
|
"c0.rgb", // C0,
|
|
"c0.aaa", // A0,
|
|
"c1.rgb", // C1,
|
|
"c1.aaa", // A1,
|
|
"c2.rgb", // C2,
|
|
"c2.aaa", // A2,
|
|
"textemp.rgb", // TEXC,
|
|
"textemp.aaa", // TEXA,
|
|
"rastemp.rgb", // RASC,
|
|
"rastemp.aaa", // RASA,
|
|
"float3(1.0f,1.0f,1.0f)", // ONE,
|
|
"float3(.5f,.5f,.5f)", // HALF,
|
|
"konsttemp.rgb", // KONST,
|
|
"float3(0.0f,0.0f,0.0f)", // ZERO
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
};
|
|
|
|
static const char *tevCInputTable2[] = // CC
|
|
{
|
|
"prev", // CPREV,
|
|
"(prev.aaa)", // APREV,
|
|
"c0", // C0,
|
|
"(c0.aaa)", // A0,
|
|
"c1", // C1,
|
|
"(c1.aaa)", // A1,
|
|
"c2", // C2,
|
|
"(c2.aaa)", // A2,
|
|
"textemp", // TEXC,
|
|
"(textemp.aaa)", // TEXA,
|
|
"rastemp", // RASC,
|
|
"(rastemp.aaa)", // RASA,
|
|
"float3(1.0f,1.0f,1.0f)", // ONE
|
|
"float3(.5f,.5f,.5f)", // HALF
|
|
"konsttemp", //"konsttemp.rgb", // KONST
|
|
"float3(0.0f,0.0f,0.0f)", // ZERO
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
};
|
|
|
|
static const char *tevAInputTable[] = // CA
|
|
{
|
|
"prev.a", // APREV,
|
|
"c0.a", // A0,
|
|
"c1.a", // A1,
|
|
"c2.a", // A2,
|
|
"textemp.a", // TEXA,
|
|
"rastemp.a", // RASA,
|
|
"konsttemp.a", // KONST
|
|
"0.0", // ZERO
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR",
|
|
};
|
|
|
|
static const char *tevAInputTable2[] = // CA
|
|
{
|
|
"prev", // APREV,
|
|
"c0", // A0,
|
|
"c1", // A1,
|
|
"c2", // A2,
|
|
"textemp", // TEXA,
|
|
"rastemp", // RASA,
|
|
"konsttemp", // KONST, (hw1 had quarter)
|
|
"float4(0,0,0,0)", // ZERO
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
"PADERROR", "PADERROR", "PADERROR", "PADERROR",
|
|
};
|
|
|
|
static const char *tevRasTable[] =
|
|
{
|
|
"colors_0",
|
|
"colors_1",
|
|
"ERROR", //2
|
|
"ERROR", //3
|
|
"ERROR", //4
|
|
"alphabump", // use bump alpha
|
|
"(alphabump*(255.0f/248.0f))", //normalized
|
|
"float4(0,0,0,0)", // zero
|
|
};
|
|
|
|
static const char *alphaRef[2] =
|
|
{
|
|
I_ALPHA"[0].x",
|
|
I_ALPHA"[0].y"
|
|
};
|
|
|
|
//static const char *tevTexFunc[] = { "tex2D", "texRECT" };
|
|
|
|
static const char *tevCOutputTable[] = { "prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb" };
|
|
static const char *tevAOutputTable[] = { "prev.a", "c0.a", "c1.a", "c2.a" };
|
|
static const char *tevIndAlphaSel[] = {"", "x", "y", "z"};
|
|
static const char *tevIndAlphaScale[] = {"", "*32","*16","*8"};
|
|
static const char *tevIndBiasField[] = {"", "x", "y", "xy", "z", "xz", "yz", "xyz"}; // indexed by bias
|
|
static const char *tevIndBiasAdd[] = {"-128.0f", "1.0f", "1.0f", "1.0f" }; // indexed by fmt
|
|
static const char *tevIndWrapStart[] = {"0", "256", "128", "64", "32", "16", "0.001" };
|
|
static const char *tevIndFmtScale[] = {"255.0f", "31.0f", "15.0f", "7.0f" };
|
|
|
|
#define WRITE p+=sprintf
|
|
|
|
static const char *swapColors = "rgba";
|
|
static char swapModeTable[4][5];
|
|
|
|
static char text[16384];
|
|
|
|
static void BuildSwapModeTable()
|
|
{
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
swapModeTable[i][0] = swapColors[bpmem.tevksel[i*2].swap1];
|
|
swapModeTable[i][1] = swapColors[bpmem.tevksel[i*2].swap2];
|
|
swapModeTable[i][2] = swapColors[bpmem.tevksel[i*2+1].swap1];
|
|
swapModeTable[i][3] = swapColors[bpmem.tevksel[i*2+1].swap2];
|
|
swapModeTable[i][4] = 0;
|
|
}
|
|
}
|
|
|
|
const char *GeneratePixelShader(u32 texture_mask, bool dstAlphaEnable, bool HLSL)
|
|
{
|
|
text[sizeof(text) - 1] = 0x7C; // canary
|
|
DVSTARTPROFILE();
|
|
|
|
BuildSwapModeTable();
|
|
int numStages = bpmem.genMode.numtevstages + 1;
|
|
int numTexgen = bpmem.genMode.numtexgens;
|
|
|
|
char *p = text;
|
|
WRITE(p, "//Pixel Shader for TEV stages\n");
|
|
WRITE(p, "//%i TEV stages, %i texgens, %i IND stages\n",
|
|
numStages, numTexgen, bpmem.genMode.numindstages);
|
|
|
|
int nIndirectStagesUsed = 0;
|
|
if (bpmem.genMode.numindstages > 0)
|
|
{
|
|
for (int i = 0; i < numStages; ++i)
|
|
{
|
|
if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages)
|
|
nIndirectStagesUsed |= 1<<bpmem.tevind[i].bt;
|
|
}
|
|
}
|
|
|
|
// Declare samplers
|
|
if (texture_mask)
|
|
{
|
|
if (HLSL)
|
|
WRITE(p, "uniform sampler ");
|
|
else
|
|
WRITE(p, "uniform samplerRECT ");
|
|
bool bfirst = true;
|
|
for (int i = 0; i < 8; ++i)
|
|
if (texture_mask & (1<<i))
|
|
{
|
|
WRITE(p, "%s samp%d : register(s%d)", bfirst?"":",", i, i);
|
|
bfirst = false;
|
|
}
|
|
|
|
WRITE(p, ";\n");
|
|
}
|
|
|
|
if (texture_mask != 0xff) {
|
|
WRITE(p, "uniform sampler2D ");
|
|
bool bfirst = true;
|
|
for (int i = 0; i < 8; ++i) {
|
|
if (!(texture_mask & (1<<i))) {
|
|
WRITE(p, "%s samp%d : register(s%d)", bfirst?"":",",i, i);
|
|
bfirst = false;
|
|
}
|
|
}
|
|
WRITE(p, ";\n");
|
|
}
|
|
|
|
WRITE(p, "\n");
|
|
|
|
WRITE(p, "uniform float4 "I_COLORS"[4] : register(c%d);\n", C_COLORS);
|
|
WRITE(p, "uniform float4 "I_KCOLORS"[4] : register(c%d);\n", C_KCOLORS);
|
|
WRITE(p, "uniform float4 "I_ALPHA"[1] : register(c%d);\n", C_ALPHA);
|
|
WRITE(p, "uniform float4 "I_TEXDIMS"[8] : register(c%d);\n", C_TEXDIMS);
|
|
WRITE(p, "uniform float4 "I_ZBIAS"[2] : register(c%d);\n", C_ZBIAS);
|
|
WRITE(p, "uniform float4 "I_INDTEXSCALE"[2] : register(c%d);\n", C_INDTEXSCALE);
|
|
WRITE(p, "uniform float4 "I_INDTEXMTX"[6] : register(c%d);\n", C_INDTEXMTX);
|
|
WRITE(p, "uniform float4 "I_FOG"[2] : register(c%d);\n", C_FOG);
|
|
|
|
WRITE(p, "void main(\n");
|
|
|
|
WRITE(p, " out half4 ocol0 : COLOR0,\n");
|
|
WRITE(p, " out float depth : DEPTH,\n");
|
|
|
|
// compute window position if needed because binding semantic WPOS is not widely supported
|
|
if (numTexgen < 7)
|
|
{
|
|
for (int i = 0; i < numTexgen; ++i)
|
|
WRITE(p, " in float3 uv%d : TEXCOORD%d, \n", i, i);
|
|
|
|
WRITE(p, " in float4 clipPos : TEXCOORD%d, \n", numTexgen);
|
|
}
|
|
else
|
|
{
|
|
// wpos is in w of first 4 texcoords
|
|
for (int i = 0; i < numTexgen; ++i)
|
|
WRITE(p, " in float%d uv%d : TEXCOORD%d, \n", i<4?4:3, i, i);
|
|
}
|
|
|
|
WRITE(p, " in float4 colors_0 : COLOR0,\n in float4 colors_1 : COLOR1){\n");
|
|
|
|
char* pmainstart = p;
|
|
|
|
WRITE(p, " float4 c0="I_COLORS"[1],c1="I_COLORS"[2],c2="I_COLORS"[3],prev=float4(0.0f,0.0f,0.0f,0.0f),textemp,rastemp,konsttemp=float4(0.0f,0.0f,0.0f,0.0f);\n"
|
|
" float3 comp16 = float3(1,255,0), comp24 = float3(1,255,255*255);\n"
|
|
" float4 alphabump=0;\n"
|
|
" float3 tevcoord;\n"
|
|
" float2 wrappedcoord, tempcoord;\n\n");
|
|
|
|
for (int i = 0; i < numTexgen; ++i)
|
|
{
|
|
// optional perspective divides
|
|
if (xfregs.texcoords[i].texmtxinfo.projection == XF_TEXPROJ_STQ)
|
|
WRITE(p, "uv%d.xy = uv%d.xy/uv%d.z;\n", i, i, i);
|
|
|
|
// scale texture coordinates
|
|
WRITE(p, "uv%d.xy = uv%d.xy * "I_TEXDIMS"[%d].zw;\n", i, i, i);
|
|
}
|
|
|
|
// indirect texture map lookup
|
|
for(u32 i = 0; i < bpmem.genMode.numindstages; ++i)
|
|
{
|
|
if (nIndirectStagesUsed & (1<<i))
|
|
{
|
|
int texcoord = bpmem.tevindref.getTexCoord(i);
|
|
|
|
if (texcoord < numTexgen)
|
|
WRITE(p, "tempcoord=uv%d.xy * "I_INDTEXSCALE"[%d].%s;\n", texcoord, i/2, (i&1)?"zw":"xy");
|
|
else
|
|
WRITE(p, "tempcoord=float2(0.0f,0.0f);\n");
|
|
|
|
char buffer[32];
|
|
sprintf(buffer, "float3 indtex%d", i);
|
|
SampleTexture(p, buffer, "tempcoord", "abg", bpmem.tevindref.getTexMap(i), texture_mask,HLSL);
|
|
}
|
|
}
|
|
|
|
// HACK to handle cases where the tex gen is not enabled
|
|
if (numTexgen == 0)
|
|
WRITE(p, "float3 uv0 = float3(0.0f,0.0f,0.0f);\n");
|
|
|
|
for (int i = 0; i < numStages; i++)
|
|
WriteStage(p, i, texture_mask,HLSL); //build the equation for this stage
|
|
|
|
if (numTexgen >= 7)
|
|
WRITE(p, "float4 clipPos = float4(uv0.w, uv1.w, uv2.w, uv3.w);\n");
|
|
|
|
// the screen space depth value = far z + (clip z / clip w) * z range
|
|
WRITE(p, "float zCoord = "I_ZBIAS"[1].x + (clipPos.z / clipPos.w) * "I_ZBIAS"[1].y;\n");
|
|
|
|
// use the texture input of the last texture stage (textemp), hopefully this has been read and is in correct format...
|
|
if (bpmem.ztex2.op == ZTEXTURE_ADD)
|
|
WRITE(p, "depth = frac(dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w + zCoord);\n");
|
|
else if (bpmem.ztex2.op == ZTEXTURE_REPLACE)
|
|
WRITE(p, "depth = frac(dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w);\n");
|
|
else
|
|
WRITE(p, "depth = zCoord;\n");
|
|
|
|
//if (bpmem.genMode.numindstages ) WRITE(p, "prev.rg = indtex0.xy;\nprev.b = 0;\n");
|
|
|
|
if (!WriteAlphaTest(p, HLSL))
|
|
{
|
|
// alpha test will always fail, so restart the shader and just make it an empty function
|
|
p = pmainstart;
|
|
WRITE(p, "discard;\n");
|
|
WRITE(p, "ocol0 = 0;\n");
|
|
}
|
|
else
|
|
{
|
|
if (dstAlphaEnable)
|
|
WRITE(p, " ocol0 = float4(prev.rgb,"I_ALPHA"[0].w);\n");
|
|
else
|
|
{
|
|
WriteFog(p);
|
|
WRITE(p, " ocol0 = prev;\n");
|
|
}
|
|
}
|
|
|
|
WRITE(p, "}\n");
|
|
|
|
if (text[sizeof(text) - 1] != 0x7C)
|
|
PanicAlert("PixelShader generator - buffer too small, canary has been eaten!");
|
|
|
|
return text;
|
|
}
|
|
|
|
static void WriteStage(char *&p, int n, u32 texture_mask, bool HLSL)
|
|
{
|
|
char *rasswap = swapModeTable[bpmem.combiners[n].alphaC.rswap];
|
|
char *texswap = swapModeTable[bpmem.combiners[n].alphaC.tswap];
|
|
|
|
|
|
int texcoord = bpmem.tevorders[n/2].getTexCoord(n&1);
|
|
bool bHasTexCoord = (u32)texcoord < bpmem.genMode.numtexgens;
|
|
bool bHasIndStage = bpmem.tevind[n].IsActive() && bpmem.tevind[n].bt < bpmem.genMode.numindstages;
|
|
|
|
// HACK to handle cases where the tex gen is not enabled
|
|
if (!bHasTexCoord)
|
|
texcoord = 0;
|
|
|
|
if (bHasIndStage)
|
|
{
|
|
// perform the indirect op on the incoming regular coordinates using indtex%d as the offset coords
|
|
if (bpmem.tevind[n].bs != ITBA_OFF)
|
|
{
|
|
// write the bump alpha
|
|
if (bpmem.tevind[n].fmt == ITF_8)
|
|
WRITE(p, "alphabump = indtex%d.%s %s;\n", bpmem.tevind[n].bt,
|
|
tevIndAlphaSel[bpmem.tevind[n].bs], tevIndAlphaScale[bpmem.tevind[n].fmt]);
|
|
else
|
|
{
|
|
// donkopunchstania: really bad way to do this
|
|
// cannot always use fract because fract(1.0) is 0.0 when it needs to be 1.0
|
|
// omitting fract seems to work as well
|
|
WRITE(p, "if (indtex%d.%s >= 1.0f )\n", bpmem.tevind[n].bt,
|
|
tevIndAlphaSel[bpmem.tevind[n].bs]);
|
|
WRITE(p, " alphabump = 1.0f;\n");
|
|
WRITE(p, "else\n");
|
|
WRITE(p, " alphabump = fract ( indtex%d.%s %s );\n", bpmem.tevind[n].bt,
|
|
tevIndAlphaSel[bpmem.tevind[n].bs], tevIndAlphaScale[bpmem.tevind[n].fmt]);
|
|
}
|
|
}
|
|
|
|
// format
|
|
WRITE(p, "float3 indtevcrd%d = indtex%d * %s;\n", n, bpmem.tevind[n].bt, tevIndFmtScale[bpmem.tevind[n].fmt]);
|
|
|
|
// bias
|
|
if (bpmem.tevind[n].bias != ITB_NONE )
|
|
WRITE(p, "indtevcrd%d.%s += %s;\n", n, tevIndBiasField[bpmem.tevind[n].bias], tevIndBiasAdd[bpmem.tevind[n].fmt]);
|
|
|
|
// multiply by offset matrix and scale
|
|
if (bpmem.tevind[n].mid != 0)
|
|
{
|
|
if (bpmem.tevind[n].mid <= 3)
|
|
{
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-1);
|
|
WRITE(p, "float2 indtevtrans%d = float2(dot("I_INDTEXMTX"[%d].xyz, indtevcrd%d), dot("I_INDTEXMTX"[%d].xyz, indtevcrd%d));\n",
|
|
n, mtxidx, n, mtxidx+1, n);
|
|
}
|
|
else if (bpmem.tevind[n].mid <= 7 && bHasTexCoord)
|
|
{ // s matrix
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-5);
|
|
WRITE(p, "float2 indtevtrans%d = "I_INDTEXMTX"[%d].ww * uv%d.xy * indtevcrd%d.xx;\n", n, mtxidx, texcoord, n);
|
|
}
|
|
else if (bpmem.tevind[n].mid <= 11 && bHasTexCoord)
|
|
{ // t matrix
|
|
int mtxidx = 2*(bpmem.tevind[n].mid-9);
|
|
WRITE(p, "float2 indtevtrans%d = "I_INDTEXMTX"[%d].ww * uv%d.xy * indtevcrd%d.yy;\n", n, mtxidx, texcoord, n);
|
|
}
|
|
else
|
|
WRITE(p, "float2 indtevtrans%d = 0;\n", n);
|
|
}
|
|
else
|
|
WRITE(p, "float2 indtevtrans%d = 0;\n", n);
|
|
|
|
// ---------
|
|
// Wrapping
|
|
// ---------
|
|
|
|
// wrap S
|
|
if (bpmem.tevind[n].sw == ITW_OFF)
|
|
WRITE(p, "wrappedcoord.x = uv%d.x;\n", texcoord);
|
|
else if (bpmem.tevind[n].sw == ITW_0)
|
|
WRITE(p, "wrappedcoord.x = 0.0f;\n");
|
|
else
|
|
WRITE(p, "wrappedcoord.x = fmod( uv%d.x, %s );\n", texcoord, tevIndWrapStart[bpmem.tevind[n].sw]);
|
|
|
|
// wrap T
|
|
if (bpmem.tevind[n].tw == ITW_OFF)
|
|
WRITE(p, "wrappedcoord.y = uv%d.y;\n", texcoord);
|
|
else if (bpmem.tevind[n].tw == ITW_0)
|
|
WRITE(p, "wrappedcoord.y = 0.0f;\n");
|
|
else
|
|
WRITE(p, "wrappedcoord.y = fmod( uv%d.y, %s );\n", texcoord, tevIndWrapStart[bpmem.tevind[n].tw]);
|
|
|
|
if (bpmem.tevind[n].fb_addprev) // add previous tevcoord
|
|
WRITE(p, "tevcoord.xy += wrappedcoord + indtevtrans%d;\n", n);
|
|
else
|
|
WRITE(p, "tevcoord.xy = wrappedcoord + indtevtrans%d;\n", n);
|
|
}
|
|
|
|
WRITE(p, "rastemp=%s.%s;\n", tevRasTable[bpmem.tevorders[n / 2].getColorChan(n & 1)],rasswap);
|
|
|
|
if (bpmem.tevorders[n/2].getEnable(n&1))
|
|
{
|
|
int texmap = bpmem.tevorders[n/2].getTexMap(n&1);
|
|
if(!bHasIndStage)
|
|
{
|
|
// calc tevcord
|
|
if(bHasTexCoord)
|
|
WRITE(p, "tevcoord.xy = uv%d.xy;\n", texcoord);
|
|
else
|
|
WRITE(p, "tevcoord.xy = float2(0.0f,0.0f);\n");
|
|
}
|
|
|
|
SampleTexture(p, "textemp", "tevcoord", texswap, texmap, texture_mask, HLSL);
|
|
}
|
|
else
|
|
WRITE(p, "textemp=float4(1,1,1,1);\n");
|
|
|
|
int kc = bpmem.tevksel[n / 2].getKC(n & 1);
|
|
int ka = bpmem.tevksel[n / 2].getKA(n & 1);
|
|
|
|
TevStageCombiner::ColorCombiner &cc = bpmem.combiners[n].colorC;
|
|
TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[n].alphaC;
|
|
|
|
bool bCKonst = cc.a == TEVCOLORARG_KONST || cc.b == TEVCOLORARG_KONST || cc.c == TEVCOLORARG_KONST || cc.d == TEVCOLORARG_KONST;
|
|
bool bAKonst = ac.a == TEVALPHAARG_KONST || ac.b == TEVALPHAARG_KONST || ac.c == TEVALPHAARG_KONST || ac.d == TEVALPHAARG_KONST;
|
|
if (bCKonst || bAKonst )
|
|
WRITE(p, "konsttemp=float4(%s,%s);\n",tevKSelTableC[kc],tevKSelTableA[ka]);
|
|
|
|
if (cc.clamp)
|
|
WRITE(p, "%s= saturate(", tevCOutputTable[cc.dest]);
|
|
else
|
|
WRITE(p, "%s= (", tevCOutputTable[cc.dest]);
|
|
|
|
// combine the color channel
|
|
if (cc.bias != 3) // if not compare
|
|
{
|
|
//normal color combiner goes here
|
|
if (cc.shift>0)
|
|
WRITE(p, " %s*(%s%s",tevScaleTable[cc.shift],tevCInputTable[cc.d],tevOpTable[cc.op]);
|
|
else
|
|
WRITE(p, " (%s%s",tevCInputTable[cc.d],tevOpTable[cc.op]);
|
|
|
|
if (cc.a == 15 && cc.b == 15)
|
|
WRITE(p, "0");
|
|
else if (cc.a == 15 && cc.c == 15)
|
|
WRITE(p, "0");
|
|
else if (cc.b == 15 && cc.c == 15)
|
|
WRITE(p,"%s",tevCInputTable[cc.a]);
|
|
else if (cc.a == 15)
|
|
WRITE(p,"(%s)*(%s)",tevCInputTable[cc.b],tevCInputTable[cc.c]);
|
|
else if (cc.b == 15)
|
|
WRITE(p,"(%s)*(1-%s)",tevCInputTable[cc.a],tevCInputTable[cc.c]);
|
|
else if (cc.c == 15)
|
|
WRITE(p,"%s",tevCInputTable[cc.a]);
|
|
else
|
|
WRITE(p, "lerp(%s,%s,%s)",tevCInputTable[cc.a], tevCInputTable[cc.b],tevCInputTable[cc.c]);
|
|
WRITE(p, " %s)",tevBiasTable[cc.bias]);
|
|
}
|
|
else
|
|
{
|
|
int cmp = (cc.shift<<1)|cc.op|8; // comparemode stored here
|
|
switch(cmp)
|
|
{
|
|
case TEVCMP_R8_GT:
|
|
case TEVCMP_RGB8_GT: // per component compares
|
|
WRITE(p, " %s + ((%s.%s > %s.%s) ? %s : float3(0.0f,0.0f,0.0f))",
|
|
tevCInputTable[cc.d], tevCInputTable2[cc.a], cmp==TEVCMP_R8_GT?"r":"rgb", tevCInputTable2[cc.b], cmp==TEVCMP_R8_GT?"r":"rgb", tevCInputTable[cc.c]);
|
|
break;
|
|
case TEVCMP_R8_EQ:
|
|
case TEVCMP_RGB8_EQ:
|
|
WRITE(p, " %s + (abs(%s.r - %s.r)<%f ? %s : float3(0.0f,0.0f,0.0f))n",
|
|
tevCInputTable[cc.d], tevCInputTable2[cc.a], tevCInputTable2[cc.b], epsilon8bit, tevCInputTable[cc.c]);
|
|
break;
|
|
|
|
case TEVCMP_GR16_GT: // 16 bit compares: 255*g+r (probably used for ztextures, so make sure in ztextures, g is the most significant byte)
|
|
case TEVCMP_BGR24_GT: // 24 bit compares: 255*255*b+255*g+r
|
|
WRITE(p, " %s + (( dot(%s.rgb-%s.rgb, comp%s) > 0) ? %s : float3(0.0f,0.0f,0.0f))",
|
|
tevCInputTable[cc.d], tevCInputTable2[cc.a], tevCInputTable2[cc.b], cmp==TEVCMP_GR16_GT?"16":"24", tevCInputTable[cc.c]);
|
|
break;
|
|
case TEVCMP_GR16_EQ:
|
|
case TEVCMP_BGR24_EQ:
|
|
WRITE(p, " %s + (abs(dot(%s.rgb - %s.rgb, comp%s))<%f ? %s : float3(0.0f,0.0f,0.0f))",
|
|
tevCInputTable[cc.d], tevCInputTable2[cc.a], tevCInputTable2[cc.b], cmp==TEVCMP_GR16_EQ?"16":"24", epsilon8bit, tevCInputTable[cc.c]);
|
|
break;
|
|
default:
|
|
WRITE(p, "float3(0.0f,0.0f,0.0f)");
|
|
break;
|
|
}
|
|
}
|
|
|
|
WRITE(p,");\n");
|
|
|
|
// combine the alpha channel
|
|
if (ac.clamp)
|
|
WRITE(p, "%s= saturate(", tevAOutputTable[ac.dest]);
|
|
else
|
|
WRITE(p, "%s= (", tevAOutputTable[ac.dest]);
|
|
|
|
if (ac.bias != 3) // if not compare
|
|
{
|
|
//normal alpha combiner goes here
|
|
if (ac.shift>0)
|
|
WRITE(p, " %s*(%s%s",tevScaleTable[ac.shift],tevAInputTable[ac.d],tevOpTable[ac.op]);
|
|
else
|
|
WRITE(p, " (%s%s",tevAInputTable[ac.d],tevOpTable[ac.op]);
|
|
|
|
if (ac.a == 7 && ac.b == 7)
|
|
WRITE(p, "0");
|
|
else if (ac.a == 7 && ac.c == 7)
|
|
WRITE(p, "0");
|
|
else if (ac.b == 7 && ac.c == 7)
|
|
WRITE(p,"%s",tevAInputTable[ac.a]);
|
|
else if (ac.a == 7)
|
|
WRITE(p,"(%s)*(%s)",tevAInputTable[ac.b],tevAInputTable[ac.c]);
|
|
else if (ac.b == 7)
|
|
WRITE(p,"(%s)*(1-%s)",tevAInputTable[ac.a],tevAInputTable[ac.c]);
|
|
else if (ac.c == 7)
|
|
WRITE(p,"%s",tevAInputTable[ac.a]);
|
|
else
|
|
WRITE(p, "lerp(%s,%s,%s)",tevAInputTable[ac.a],tevAInputTable[ac.b],tevAInputTable[ac.c]);
|
|
WRITE(p, " %s)",tevBiasTable[ac.bias]);
|
|
}
|
|
else
|
|
{
|
|
//compare alpha combiner goes here
|
|
int cmp = (ac.shift<<1)|ac.op|8; // comparemode stored here
|
|
switch(cmp)
|
|
{
|
|
case TEVCMP_R8_GT:
|
|
case TEVCMP_A8_GT:
|
|
WRITE(p, " %s + ((%s.%s > %s.%s) ? %s : 0)",
|
|
tevAInputTable[ac.d],tevAInputTable2[ac.a], cmp==TEVCMP_R8_GT?"r":"a", tevAInputTable2[ac.b], cmp==TEVCMP_R8_GT?"r":"a", tevAInputTable[ac.c]);
|
|
break;
|
|
case TEVCMP_R8_EQ:
|
|
case TEVCMP_A8_EQ:
|
|
WRITE(p, " %s + (abs(%s.r - %s.r)<%f ? %s : 0)",
|
|
tevAInputTable[ac.d],tevAInputTable2[ac.a], tevAInputTable2[ac.b],epsilon8bit,tevAInputTable[ac.c]);
|
|
break;
|
|
|
|
case TEVCMP_GR16_GT: // 16 bit compares: 255*g+r (probably used for ztextures, so make sure in ztextures, g is the most significant byte)
|
|
case TEVCMP_BGR24_GT: // 24 bit compares: 255*255*b+255*g+r
|
|
WRITE(p, " %s + (( dot(%s.rgb-%s.rgb, comp%s) > 0) ? %s : 0)",
|
|
tevAInputTable[ac.d],tevAInputTable2[ac.a], tevAInputTable2[ac.b], cmp==TEVCMP_GR16_GT?"16":"24", tevAInputTable[ac.c]);
|
|
break;
|
|
case TEVCMP_GR16_EQ:
|
|
case TEVCMP_BGR24_EQ:
|
|
WRITE(p, " %s + (abs(dot(%s.rgb - %s.rgb, comp%s))<%f ? %s : 0)",
|
|
tevAInputTable[ac.d],tevAInputTable2[ac.a], tevAInputTable2[ac.b],cmp==TEVCMP_GR16_EQ?"16":"24",epsilon8bit,tevAInputTable[ac.c]);
|
|
break;
|
|
default:
|
|
WRITE(p, "0)");
|
|
break;
|
|
}
|
|
}
|
|
|
|
WRITE(p, ");\n\n");
|
|
}
|
|
|
|
void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, u32 texture_mask, bool HLSL)
|
|
{
|
|
if (texture_mask & (1<<texmap)) {
|
|
// non pow 2
|
|
bool bwraps = (texture_mask & (0x100<<texmap)) ? true : false;
|
|
bool bwrapt = (texture_mask & (0x10000<<texmap)) ? true : false;
|
|
|
|
if (bwraps || bwrapt) {
|
|
if (bwraps) {
|
|
WRITE(p, "tempcoord.x = fmod(%s.x, "I_TEXDIMS"[%d].x);\n", texcoords, texmap);
|
|
}
|
|
else {
|
|
WRITE(p, "tempcoord.x = %s.x;\n", texcoords);
|
|
}
|
|
|
|
if (bwrapt) {
|
|
WRITE(p, "tempcoord.y = fmod(%s.y, "I_TEXDIMS"[%d].y);\n", texcoords, texmap);
|
|
}
|
|
else {
|
|
WRITE(p, "tempcoord.y = %s.y;\n", texcoords);
|
|
}
|
|
|
|
if (HLSL)
|
|
WRITE(p, "%s=tex2D(samp%d,tempcoord.xy).%s;\n", destination, texmap, texswap);
|
|
else
|
|
WRITE(p, "%s=texRECT(samp%d,tempcoord.xy).%s;\n", destination, texmap, texswap);
|
|
}
|
|
else {
|
|
if (HLSL)
|
|
WRITE(p, "%s=tex2D(samp%d,%s.xy).%s;\n", destination, texmap, texcoords, texswap);
|
|
else
|
|
WRITE(p, "%s=texRECT(samp%d,%s.xy).%s;\n", destination, texmap, texcoords, texswap);
|
|
}
|
|
}
|
|
else {
|
|
WRITE(p, "%s=tex2D(samp%d,%s.xy * "I_TEXDIMS"[%d].xy).%s;\n", destination, texmap, texcoords, texmap, texswap);
|
|
}
|
|
}
|
|
|
|
static void WriteAlphaCompare(char *&p, int num, int comp)
|
|
{
|
|
switch(comp)
|
|
{
|
|
case ALPHACMP_ALWAYS: WRITE(p, "(false)"); break;
|
|
case ALPHACMP_NEVER: WRITE(p, "(true)"); break;
|
|
case ALPHACMP_LEQUAL: WRITE(p, "(prev.a > %s)",alphaRef[num]); break;
|
|
case ALPHACMP_LESS: WRITE(p, "(prev.a >= %s - %f)",alphaRef[num],epsilon8bit*0.5f);break;
|
|
case ALPHACMP_GEQUAL: WRITE(p, "(prev.a < %s)",alphaRef[num]); break;
|
|
case ALPHACMP_GREATER: WRITE(p, "(prev.a <= %s + %f)",alphaRef[num],epsilon8bit*0.5f);break;
|
|
case ALPHACMP_EQUAL: WRITE(p, "(abs(prev.a-%s)>%f)",alphaRef[num],epsilon8bit*2); break;
|
|
case ALPHACMP_NEQUAL: WRITE(p, "(abs(prev.a-%s)<%f)",alphaRef[num],epsilon8bit*2); break;
|
|
default: PanicAlert("Bad Alpha Compare! %08x", comp);
|
|
}
|
|
}
|
|
|
|
static bool WriteAlphaTest(char *&p, bool HLSL)
|
|
{
|
|
u32 op = bpmem.alphaFunc.logic;
|
|
u32 comp[2] = {bpmem.alphaFunc.comp0,bpmem.alphaFunc.comp1};
|
|
|
|
//first kill all the simple cases
|
|
switch(op)
|
|
{
|
|
case 0: // AND
|
|
if (comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS)
|
|
return true;
|
|
if (comp[0] == ALPHACMP_NEVER || comp[1] == ALPHACMP_NEVER)
|
|
{
|
|
WRITE(p, "discard;\n");
|
|
return false;
|
|
}
|
|
break;
|
|
case 1: // OR
|
|
if (comp[0] == ALPHACMP_ALWAYS || comp[1] == ALPHACMP_ALWAYS)
|
|
return true;
|
|
if (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER)
|
|
{
|
|
WRITE(p, "discard;\n");
|
|
return false;
|
|
}
|
|
break;
|
|
case 2: // XOR
|
|
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
|
|
return true;
|
|
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
|
|
{
|
|
WRITE(p, "discard;\n");
|
|
return false;
|
|
}
|
|
break;
|
|
case 3: // XNOR
|
|
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
|
|
{
|
|
WRITE(p, "discard;\n");
|
|
return false;
|
|
}
|
|
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_ALWAYS) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_NEVER))
|
|
return true;
|
|
break;
|
|
default: PanicAlert("bad logic for alpha test? %08x", op);
|
|
}
|
|
|
|
// Seems we need discard for Cg and clip for d3d. sigh.
|
|
if (HLSL)
|
|
WRITE(p, "clip( ");
|
|
else
|
|
WRITE(p, "discard( ");
|
|
|
|
WriteAlphaCompare(p, 0, bpmem.alphaFunc.comp0);
|
|
|
|
// negated because testing the inverse condition
|
|
switch (bpmem.alphaFunc.logic)
|
|
{
|
|
case 0: WRITE(p, " || "); break; // and
|
|
case 1: WRITE(p, " && "); break; // or
|
|
case 2: WRITE(p, " == "); break; // xor
|
|
case 3: WRITE(p, " != "); break; // xnor
|
|
default: break;
|
|
}
|
|
|
|
WriteAlphaCompare(p, 1, bpmem.alphaFunc.comp1);
|
|
|
|
WRITE(p, ");\n");
|
|
|
|
return true;
|
|
}
|
|
|
|
static void WriteFog(char *&p)
|
|
{
|
|
bool enabled = bpmem.fog.c_proj_fsel.fsel == 0 ? false : true;
|
|
|
|
if (enabled)
|
|
{
|
|
if (bpmem.fog.c_proj_fsel.proj == 0)
|
|
{
|
|
// perspective
|
|
// ze = A/(B - Zs)
|
|
WRITE (p, " float ze = "I_FOG"[1].x / ("I_FOG"[1].y - depth);\n");
|
|
}
|
|
else
|
|
{
|
|
// orthographic
|
|
// ze = a*Zs
|
|
WRITE (p, " float ze = "I_FOG"[1].x * depth;\n");
|
|
}
|
|
|
|
//WRITE (p, " float fog = clamp(ze - "I_FOG"[1].z, 0.0f, 1.0f);\n");
|
|
WRITE (p, " float fog = saturate(ze - "I_FOG"[1].z);\n");
|
|
}
|
|
|
|
switch (bpmem.fog.c_proj_fsel.fsel)
|
|
{
|
|
case 0: // TODO - No fog?
|
|
break;
|
|
case 2: // linear
|
|
// empty
|
|
break;
|
|
case 4: // exp
|
|
WRITE(p, " fog = 1.0f - pow(2, -8.0f * fog);\n");
|
|
break;
|
|
case 5: // exp2
|
|
WRITE(p, " fog = 1.0f - pow(2, -8.0f * fog * fog);\n");
|
|
break;
|
|
case 6: // backward exp
|
|
WRITE(p, " fog = 1.0f - fog;\n");
|
|
WRITE(p, " fog = pow(2, -8.0f * fog);\n");
|
|
break;
|
|
case 7: // backward exp2
|
|
WRITE(p, " fog = 1.0f - fog;\n");
|
|
WRITE(p, " fog = pow(2, -8.0f * fog * fog);\n");
|
|
break;
|
|
default: WARN_LOG(VIDEO, "Unknown Fog Type! %08x", bpmem.fog.c_proj_fsel.fsel);
|
|
}
|
|
|
|
if (enabled)
|
|
WRITE(p, " prev.rgb = (1.0f - fog) * prev.rgb + (fog * "I_FOG"[0].rgb);\n");
|
|
}
|