mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-09-22 04:11:46 +02:00
19d7bb2c84
Also reimplemented screen clearing as a color quad to support alpha blending when clearing as in the original hardware. the funny thing is how is implemented peeking, as locking depth textures is not supported, implemented peeking copying the values form the depth texture to a r32f render target and then reading back the data. please a lot of testing to this commit. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4599 8ced0084-cf51-0410-be5f-012b33b47a6e
972 lines
33 KiB
C++
972 lines
33 KiB
C++
// Copyright (C) 2003 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 <stdio.h>
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#include <cmath>
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#include <assert.h>
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#include <locale.h>
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#include "Profiler.h"
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#include "PixelShaderGen.h"
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#include "XFMemory.h" // for texture projection mode
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#include "BPMemory.h"
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PIXELSHADERUID last_pixel_shader_uid;
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// Mash together all the inputs that contribute to the code of a generated pixel shader into
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// a unique identifier, basically containing all the bits. Yup, it's a lot ....
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// It would likely be a lot more efficient to build this incrementally as the attributes
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// are set...
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void GetPixelShaderId(PIXELSHADERUID &uid, u32 texturemask, u32 dstAlphaEnable)
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{
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u32 projtexcoords = 0;
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for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages + 1; i++)
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{
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if (bpmem.tevorders[i/2].getEnable(i & 1))
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{
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int texcoord = bpmem.tevorders[i / 2].getTexCoord(i & 1);
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if (xfregs.texcoords[texcoord].texmtxinfo.projection)
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projtexcoords |= 1 << texcoord;
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}
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}
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uid.values[0] = (u32)bpmem.genMode.numtevstages |
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((u32)bpmem.genMode.numindstages << 4) |
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((u32)bpmem.genMode.numtexgens << 7) |
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((u32)dstAlphaEnable << 11) |
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((u32)((bpmem.alphaFunc.hex >> 16) & 0xff) << 12) |
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(projtexcoords << 20) |
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((u32)bpmem.ztex2.op << 28);
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uid.values[0] = (uid.values[0] & ~0x0ff00000) | (projtexcoords << 20);
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// swap table
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for (int i = 0; i < 8; i += 2)
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((u8*)&uid.values[1])[i / 2] = (bpmem.tevksel[i].hex & 0xf) | ((bpmem.tevksel[i + 1].hex & 0xf) << 4);
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uid.values[2] = texturemask;
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u32 enableZTexture = (!bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable)?1:0;
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uid.values[3] = (u32)bpmem.fog.c_proj_fsel.fsel |
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((u32)bpmem.fog.c_proj_fsel.proj << 3) |
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((u32)enableZTexture << 4);
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int hdr = 4;
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u32* pcurvalue = &uid.values[hdr];
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for (u32 i = 0; i < (u32)bpmem.genMode.numtevstages + 1; ++i)
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{
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TevStageCombiner::ColorCombiner &cc = bpmem.combiners[i].colorC;
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TevStageCombiner::AlphaCombiner &ac = bpmem.combiners[i].alphaC;
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u32 val0 = cc.hex & 0xffffff;
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u32 val1 = ac.hex & 0xffffff;
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val0 |= bpmem.tevksel[i / 2].getKC(i & 1) << 24;
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val1 |= bpmem.tevksel[i / 2].getKA(i & 1) << 24;
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pcurvalue[0] = val0;
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pcurvalue[1] = val1;
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pcurvalue += 2;
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}
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for (u32 i = 0; i < ((u32)bpmem.genMode.numtevstages+1) / 2; ++i)
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{
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u32 val0, val1;
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if (bpmem.tevorders[i].hex & 0x40)
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val0 = bpmem.tevorders[i].hex & 0x3ff;
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else
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val0 = bpmem.tevorders[i].hex & 0x380;
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if (bpmem.tevorders[i].hex & 0x40000)
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val1 = (bpmem.tevorders[i].hex & 0x3ff000) >> 12;
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else
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val1 = (bpmem.tevorders[i].hex & 0x380000) >> 12;
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switch (i % 3) {
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case 0: pcurvalue[0] = val0|(val1<<10); break;
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case 1: pcurvalue[0] |= val0<<20; pcurvalue[1] = val1; pcurvalue++; break;
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case 2: pcurvalue[1] |= (val0<<10)|(val1<<20); pcurvalue++; break;
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default: PanicAlert("Uknown case for Tev Stages / 2: %08x", (i % 3));
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}
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}
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if ((bpmem.genMode.numtevstages + 1) & 1) { // odd
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u32 val0;
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if (bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x40)
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val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x3ff;
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else
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val0 = bpmem.tevorders[bpmem.genMode.numtevstages/2].hex & 0x380;
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switch (bpmem.genMode.numtevstages % 3)
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{
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case 0: pcurvalue[0] = val0; break;
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case 1: pcurvalue[0] |= val0 << 20; break;
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case 2: pcurvalue[1] |= val0 << 10; pcurvalue++; break;
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default: PanicAlert("Uknown case for Tev Stages: %08x", bpmem.genMode.numtevstages % 3);
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}
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}
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if ((bpmem.genMode.numtevstages % 3) != 2)
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++pcurvalue;
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uid.tevstages = (u32)(pcurvalue - &uid.values[0] - hdr);
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for (u32 i = 0; i < bpmem.genMode.numindstages; ++i)
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{
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u32 val = bpmem.tevind[i].hex & 0x1fffff; // 21 bits
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switch (i % 3)
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{
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case 0: pcurvalue[0] = val; break;
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case 1: pcurvalue[0] |= val << 21; pcurvalue[1] = val >> 11; ++pcurvalue; break;
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case 2: pcurvalue[0] |= val << 10; ++pcurvalue; break;
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default: PanicAlert("Uknown case for Ind Stages: %08x", (i % 3));
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}
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}
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// yeah, well ....
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uid.indstages = (u32)(pcurvalue - &uid.values[0] - (hdr - 1) - uid.tevstages);
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}
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// old tev->pixelshader notes
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//
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// color for this stage (alpha, color) is given by bpmem.tevorders[0].colorchan0
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// konstant for this stage (alpha, color) is given by bpmem.tevksel
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// inputs are given by bpmem.combiners[0].colorC.a/b/c/d << could be current chan color
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// according to GXTevColorArg table above
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// output is given by .outreg
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// tevtemp is set according to swapmodetables and
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static void WriteStage(char *&p, int n, u32 texture_mask, u32 HLSL);
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static void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, u32 texture_mask, u32 HLSL);
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static void WriteAlphaCompare(char *&p, int num, int comp);
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static bool WriteAlphaTest(char *&p, u32 HLSL);
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static void WriteFog(char *&p);
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const float epsilon8bit = 1.0f / 255.0f;
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static const char *tevKSelTableC[] = // KCSEL
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{
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"1.0f,1.0f,1.0f", // 1 = 0x00
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"0.875f,0.875f,0.875f", // 7_8 = 0x01
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"0.75f,0.75f,0.75f", // 3_4 = 0x02
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"0.625f,0.625f,0.625f", // 5_8 = 0x03
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"0.5f,0.5f,0.5f", // 1_2 = 0x04
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"0.375f,0.375f,0.375f", // 3_8 = 0x05
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"0.25f,0.25f,0.25f", // 1_4 = 0x06
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"0.125f,0.125f,0.125f", // 1_8 = 0x07
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"ERROR", // 0x08
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"ERROR", // 0x09
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"ERROR", // 0x0a
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"ERROR", // 0x0b
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I_KCOLORS"[0].rgb", // K0 = 0x0C
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I_KCOLORS"[1].rgb", // K1 = 0x0D
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I_KCOLORS"[2].rgb", // K2 = 0x0E
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I_KCOLORS"[3].rgb", // K3 = 0x0F
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I_KCOLORS"[0].rrr", // K0_R = 0x10
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I_KCOLORS"[1].rrr", // K1_R = 0x11
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I_KCOLORS"[2].rrr", // K2_R = 0x12
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I_KCOLORS"[3].rrr", // K3_R = 0x13
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I_KCOLORS"[0].ggg", // K0_G = 0x14
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I_KCOLORS"[1].ggg", // K1_G = 0x15
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I_KCOLORS"[2].ggg", // K2_G = 0x16
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I_KCOLORS"[3].ggg", // K3_G = 0x17
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I_KCOLORS"[0].bbb", // K0_B = 0x18
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I_KCOLORS"[1].bbb", // K1_B = 0x19
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I_KCOLORS"[2].bbb", // K2_B = 0x1A
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I_KCOLORS"[3].bbb", // K3_B = 0x1B
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I_KCOLORS"[0].aaa", // K0_A = 0x1C
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I_KCOLORS"[1].aaa", // K1_A = 0x1D
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I_KCOLORS"[2].aaa", // K2_A = 0x1E
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I_KCOLORS"[3].aaa", // K3_A = 0x1F
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};
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static const char *tevKSelTableA[] = // KASEL
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{
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"1.0f", // 1 = 0x00
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"0.875f",// 7_8 = 0x01
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"0.75f", // 3_4 = 0x02
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"0.625f",// 5_8 = 0x03
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"0.5f", // 1_2 = 0x04
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"0.375f",// 3_8 = 0x05
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"0.25f", // 1_4 = 0x06
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"0.125f",// 1_8 = 0x07
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"ERROR", // 0x08
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"ERROR", // 0x09
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"ERROR", // 0x0a
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"ERROR", // 0x0b
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"ERROR", // 0x0c
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"ERROR", // 0x0d
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"ERROR", // 0x0e
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"ERROR", // 0x0f
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I_KCOLORS"[0].r", // K0_R = 0x10
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I_KCOLORS"[1].r", // K1_R = 0x11
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I_KCOLORS"[2].r", // K2_R = 0x12
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I_KCOLORS"[3].r", // K3_R = 0x13
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I_KCOLORS"[0].g", // K0_G = 0x14
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I_KCOLORS"[1].g", // K1_G = 0x15
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I_KCOLORS"[2].g", // K2_G = 0x16
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I_KCOLORS"[3].g", // K3_G = 0x17
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I_KCOLORS"[0].b", // K0_B = 0x18
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I_KCOLORS"[1].b", // K1_B = 0x19
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I_KCOLORS"[2].b", // K2_B = 0x1A
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I_KCOLORS"[3].b", // K3_B = 0x1B
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I_KCOLORS"[0].a", // K0_A = 0x1C
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I_KCOLORS"[1].a", // K1_A = 0x1D
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I_KCOLORS"[2].a", // K2_A = 0x1E
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I_KCOLORS"[3].a", // K3_A = 0x1F
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};
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static const char *tevScaleTable[] = // CS
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{
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"1.0f", // SCALE_1
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"2.0f", // SCALE_2
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"4.0f", // SCALE_4
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"0.5f", // DIVIDE_2
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};
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static const char *tevBiasTable[] = // TB
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{
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"", // ZERO,
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"+0.5f", // ADDHALF,
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"-0.5f", // SUBHALF,
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"",
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};
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static const char *tevOpTable[] = { // TEV
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"+", // TEVOP_ADD = 0,
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"-", // TEVOP_SUB = 1,
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};
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//static const char *tevCompOpTable[] = { ">", "==" };
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#define TEVCMP_R8 0
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#define TEVCMP_GR16 1
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#define TEVCMP_BGR24 2
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#define TEVCMP_RGB8 3
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static const char *tevCInputTable[] = // CC
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{
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"prev.rgb", // CPREV,
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"prev.aaa", // APREV,
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"c0.rgb", // C0,
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"c0.aaa", // A0,
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"c1.rgb", // C1,
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"c1.aaa", // A1,
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"c2.rgb", // C2,
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"c2.aaa", // A2,
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"textemp.rgb", // TEXC,
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"textemp.aaa", // TEXA,
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"rastemp.rgb", // RASC,
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"rastemp.aaa", // RASA,
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"float3(1.0f,1.0f,1.0f)", // ONE,
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"float3(0.5f,0.5f,0.5f)", // HALF,
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"konsttemp.rgb", // KONST,
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"float3(0.0f,0.0f,0.0f)", // ZERO
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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};
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static const char *tevCInputTable2[] = // CC
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{
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"prev", // CPREV,
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"(prev.aaa)", // APREV,
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"c0", // C0,
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"(c0.aaa)", // A0,
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"c1", // C1,
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"(c1.aaa)", // A1,
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"c2", // C2,
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"(c2.aaa)", // A2,
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"textemp", // TEXC,
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"(textemp.aaa)", // TEXA,
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"rastemp", // RASC,
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"(rastemp.aaa)", // RASA,
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"float3(1.0f,1.0f,1.0f)", // ONE
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"float3(0.5f,0.5f,0.5f)", // HALF
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"konsttemp", //"konsttemp.rgb", // KONST
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"float3(0.0f,0.0f,0.0f)", // ZERO
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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};
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static const char *tevAInputTable[] = // CA
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{
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"prev.a", // APREV,
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"c0.a", // A0,
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"c1.a", // A1,
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"c2.a", // A2,
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"textemp.a", // TEXA,
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"rastemp.a", // RASA,
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"konsttemp.a", // KONST
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"0.0f", // ZERO
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR",
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};
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static const char *tevAInputTable2[] = // CA
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{
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"prev", // APREV,
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"c0", // A0,
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"c1", // A1,
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"c2", // A2,
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"textemp", // TEXA,
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"rastemp", // RASA,
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"konsttemp", // KONST, (hw1 had quarter)
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"float4(0.0f,0.0f,0.0f,0.0f)", // ZERO
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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"PADERROR", "PADERROR", "PADERROR", "PADERROR",
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};
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static const char *tevRasTable[] =
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{
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"colors_0",
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"colors_1",
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"ERROR", //2
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"ERROR", //3
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"ERROR", //4
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"alphabump", // use bump alpha
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"(alphabump*(255.0f/248.0f))", //normalized
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"float4(0.0f,0.0f,0.0f,0.0f)", // zero
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};
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static const char *alphaRef[2] =
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{
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I_ALPHA"[0].x",
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I_ALPHA"[0].y"
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};
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//static const char *tevTexFunc[] = { "tex2D", "texRECT" };
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static const char *tevCOutputTable[] = { "prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb" };
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static const char *tevAOutputTable[] = { "prev.a", "c0.a", "c1.a", "c2.a" };
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static const char *tevIndAlphaSel[] = {"", "x", "y", "z"};
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//static const char *tevIndAlphaScale[] = {"", "*32","*16","*8"};
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static const char *tevIndAlphaScale[] = {"*(248.0f/255.0f)", "*(224.0f/255.0f)","*(240.0f/255.0f)","*(248.0f/255.0f)"};
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static const char *tevIndBiasField[] = {"", "x", "y", "xy", "z", "xz", "yz", "xyz"}; // indexed by bias
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static const char *tevIndBiasAdd[] = {"-128.0f", "1.0f", "1.0f", "1.0f" }; // indexed by fmt
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static const char *tevIndWrapStart[] = {"0", "256", "128", "64", "32", "16", "0.001" };
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static const char *tevIndFmtScale[] = {"255.0f", "31.0f", "15.0f", "7.0f" };
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#define WRITE p+=sprintf
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static const char *swapColors = "rgba";
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static char swapModeTable[4][5];
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static char text[16384];
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static void BuildSwapModeTable()
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{
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for (int i = 0; i < 4; i++)
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{
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swapModeTable[i][0] = swapColors[bpmem.tevksel[i*2].swap1];
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swapModeTable[i][1] = swapColors[bpmem.tevksel[i*2].swap2];
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swapModeTable[i][2] = swapColors[bpmem.tevksel[i*2+1].swap1];
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swapModeTable[i][3] = swapColors[bpmem.tevksel[i*2+1].swap2];
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swapModeTable[i][4] = 0;
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}
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}
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const char *GeneratePixelShader(u32 texture_mask, bool dstAlphaEnable, u32 HLSL)
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{
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setlocale(LC_NUMERIC, "C"); // Reset locale for compilation
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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 float4 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(1.0f,255.0f,0.0f), comp24 = float3(1.0f,255.0f,255.0f*255.0f);\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");
|
|
|
|
if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !bpmem.zcontrol.zcomploc && bpmem.zmode.testenable && bpmem.zmode.updateenable)
|
|
{
|
|
// 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, "zCoord = dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w + zCoord;\n");
|
|
else
|
|
WRITE(p, "zCoord = dot("I_ZBIAS"[0].xyzw, textemp.xyzw) + "I_ZBIAS"[1].w;\n");
|
|
|
|
// scale to make result from frac correct
|
|
WRITE(p, "zCoord = zCoord * (16777215.0f/16777216.0f);\n");
|
|
WRITE(p, "zCoord = frac(zCoord);\n");
|
|
WRITE(p, "zCoord = zCoord * (16777216.0f/16777215.0f);\n");
|
|
}
|
|
|
|
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, "ocol0 = 0;\n");
|
|
WRITE(p, HLSL ? "clip(-1);" : "discard;\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!");
|
|
|
|
setlocale(LC_NUMERIC, ""); // restore locale
|
|
return text;
|
|
}
|
|
|
|
|
|
|
|
//table with the color compare operations
|
|
static const char *TEVCMPColorOPTable[16] =
|
|
{
|
|
"float3(0.0f,0.0f,0.0f)",//0
|
|
"float3(0.0f,0.0f,0.0f)",//1
|
|
"float3(0.0f,0.0f,0.0f)",//2
|
|
"float3(0.0f,0.0f,0.0f)",//3
|
|
"float3(0.0f,0.0f,0.0f)",//4
|
|
"float3(0.0f,0.0f,0.0f)",//5
|
|
"float3(0.0f,0.0f,0.0f)",//6
|
|
"float3(0.0f,0.0f,0.0f)",//7
|
|
" %s + ((%s.r > %s.r + (1.0f/510.0f)) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_R8_GT 8
|
|
" %s + ((abs(%s.r - %s.r) < (1.0f/255.0f)) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_R8_EQ 9
|
|
" %s + (( dot(%s.rgb, comp16) >= (dot(%s.rgb, comp16) + (1.0f/510.0f))) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_GR16_GT 10
|
|
" %s + (abs(dot(%s.rgb, comp16) - dot(%s.rgb, comp16)) < (1.0f/255.0f) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_GR16_EQ 11
|
|
" %s + (( dot(%s.rgb, comp24) >= (dot(%s.rgb, comp24) + (1.0f/510.0f))) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_BGR24_GT 12
|
|
" %s + (abs(dot(%s.rgb, comp24) - dot(%s.rgb, comp24)) < (1.0f/255.0f) ? %s : float3(0.0f,0.0f,0.0f))",//#define TEVCMP_BGR24_EQ 13
|
|
" %s + (max(sign(%s.rgb - %s.rgb - (1.0f/510.0f)),float3(0.0f,0.0f,0.0f)) * %s)",//#define TEVCMP_RGB8_GT 14
|
|
" %s + ((float3(1.0f,1.0f,1.0f) - max(sign(abs(%s.rgb - %s.rgb) - (1.0f/255.0f)),float3(0.0f,0.0f,0.0f))) * %s)"//#define TEVCMP_RGB8_EQ 15
|
|
};
|
|
|
|
//table with the alpha compare operations
|
|
static const char *TEVCMPAlphaOPTable[16] =
|
|
{
|
|
"0.0f",//0
|
|
"0.0f",//1
|
|
"0.0f",//2
|
|
"0.0f",//3
|
|
"0.0f",//4
|
|
"0.0f",//5
|
|
"0.0f",//6
|
|
"0.0f",//7
|
|
" %s + ((%s.r >= (%s.r + (1.0f/510.0f))) ? %s : 0.0f)",//#define TEVCMP_R8_GT 8
|
|
" %s + (abs(%s.r - %s.r) < (1.0f/255.0f) ? %s : 0.0f)",//#define TEVCMP_R8_EQ 9
|
|
" %s + ((dot(%s.rgb, comp16) >= (dot(%s.rgb, comp16) + (1.0f/510.0f))) ? %s : 0.0f)",//#define TEVCMP_GR16_GT 10
|
|
" %s + (abs(dot(%s.rgb, comp16) - dot(%s.rgb, comp16)) < (1.0f/255.0f) ? %s : 0.0f)",//#define TEVCMP_GR16_EQ 11
|
|
" %s + ((dot(%s.rgb, comp24) >= (dot(%s.rgb, comp24) + (1.0f/510.0f))) ? %s : 0.0f)",//#define TEVCMP_BGR24_GT 12
|
|
" %s + (abs(dot(%s.rgb, comp24) - dot(%s.rgb, comp24)) < (1.0f/255.0f) ? %s : 0.0f)",//#define TEVCMP_BGR24_EQ 13
|
|
" %s + ((%s.a >= (%s.a + (1.0f/510.0f))) ? %s : 0.0f)",//#define TEVCMP_A8_GT 14
|
|
" %s + (abs(%s.a - %s.a) < (1.0f/255.0f) ? %s : 0.0f)"//#define TEVCMP_A8_EQ 15
|
|
|
|
};
|
|
|
|
|
|
static void WriteStage(char *&p, int n, u32 texture_mask, u32 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(p, "alphabump = 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(1.0f,1.0f,1.0f,1.0f);\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, "0.0f");
|
|
else if (cc.a == 15 && cc.c == 15)
|
|
WRITE(p, "0.0f");
|
|
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
|
|
WRITE(p, TEVCMPColorOPTable[cmp],//lookup the function from the op table
|
|
tevCInputTable[cc.d],
|
|
tevCInputTable2[cc.a],
|
|
tevCInputTable2[cc.b],
|
|
tevCInputTable[cc.c]);
|
|
}
|
|
|
|
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, "0.0f");
|
|
else if (ac.a == 7 && ac.c == 7)
|
|
WRITE(p, "0.0f");
|
|
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
|
|
WRITE(p, TEVCMPAlphaOPTable[cmp],
|
|
tevAInputTable[ac.d],
|
|
tevAInputTable2[ac.a],
|
|
tevAInputTable2[ac.b],
|
|
tevAInputTable[ac.c]);
|
|
}
|
|
|
|
WRITE(p, ");\n\n");
|
|
}
|
|
|
|
void SampleTexture(char *&p, const char *destination, const char *texcoords, const char *texswap, int texmap, u32 texture_mask, u32 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 const char *tevAlphaFuncsTable[] =
|
|
{
|
|
"(false)", //ALPHACMP_NEVER 0
|
|
"(prev.a < %s - (1.0f/510.0f))", //ALPHACMP_LESS 1
|
|
"(abs( prev.a - %s ) < (1.0f/255.0f))", //ALPHACMP_EQUAL 2
|
|
"(prev.a < %s + (1.0f/510.0f))", //ALPHACMP_LEQUAL 3
|
|
"(prev.a > %s + (1.0f/510.0f))", //ALPHACMP_GREATER 4
|
|
"(abs( prev.a - %s ) > (1.0f/255.0f))", //ALPHACMP_NEQUAL 5
|
|
"(prev.a > %s - (1.0f/510.0f))", //ALPHACMP_GEQUAL 6
|
|
"(true)" //ALPHACMP_ALWAYS 7
|
|
};
|
|
|
|
static const char *tevAlphaFunclogicTable[] =
|
|
{
|
|
" && ", // and
|
|
" || ", // or
|
|
" != ", // xor
|
|
" == " // xnor
|
|
};
|
|
|
|
static bool WriteAlphaTest(char *&p, u32 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) 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)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))
|
|
return false;
|
|
break;
|
|
case 3: // XNOR
|
|
if ((comp[0] == ALPHACMP_ALWAYS && comp[1] == ALPHACMP_NEVER) || (comp[0] == ALPHACMP_NEVER && comp[1] == ALPHACMP_ALWAYS))
|
|
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(!( ");
|
|
|
|
int compindex = bpmem.alphaFunc.comp0 % 8;
|
|
WRITE(p, tevAlphaFuncsTable[compindex],alphaRef[0]);//lookup the first component from the alpha function table
|
|
|
|
WRITE(p, tevAlphaFunclogicTable[bpmem.alphaFunc.logic % 4]);//lookup the logic op
|
|
|
|
compindex = bpmem.alphaFunc.comp1 % 8;
|
|
WRITE(p, tevAlphaFuncsTable[compindex],alphaRef[1]);//lookup the second component from the alpha function table
|
|
|
|
if (HLSL) {
|
|
// clip works differently than discard - discard takes a bool, clip takes a value that kills the pixel on negative
|
|
WRITE(p, ") ? 1 : -1);\n");
|
|
} else {
|
|
WRITE(p, "));\n");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static const char *tevFogFuncsTable[] =
|
|
{
|
|
"", //No Fog
|
|
"", //?
|
|
"", //Linear
|
|
"", //?
|
|
" fog = 1.0f - pow(2, -8.0f * fog);\n", //exp
|
|
" fog = 1.0f - pow(2, -8.0f * fog * fog);\n", //exp2
|
|
" fog = pow(2, -8.0f * (1.0f - fog));\n", //backward exp
|
|
" fog = 1.0f - fog;\n fog = pow(2, -8.0f * fog * fog);\n" //backward exp2
|
|
};
|
|
|
|
static void WriteFog(char *&p)
|
|
{
|
|
if(bpmem.fog.c_proj_fsel.fsel == 0)return;//no Fog
|
|
|
|
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");
|
|
|
|
if(bpmem.fog.c_proj_fsel.fsel > 3)
|
|
{
|
|
WRITE(p, tevFogFuncsTable[bpmem.fog.c_proj_fsel.fsel]);
|
|
}
|
|
else
|
|
{
|
|
if(bpmem.fog.c_proj_fsel.fsel != 2)
|
|
WARN_LOG(VIDEO, "Unknown Fog Type! %08x", bpmem.fog.c_proj_fsel.fsel);
|
|
}
|
|
|
|
WRITE(p, " prev.rgb = (1.0f - fog) * prev.rgb + (fog * "I_FOG"[0].rgb);\n");
|
|
|
|
}
|