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dolphin/Source/Core/VideoCommon/Src/PixelShaderManager.cpp

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// 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 <cmath>
#include "Common.h"
#include "Statistics.h"
#include "PixelShaderManager.h"
#include "VideoCommon.h"
#include "VideoConfig.h"
#include "RenderBase.h"
static int s_nColorsChanged[2]; // 0 - regular colors, 1 - k colors
static int s_nIndTexMtxChanged;
static bool s_bAlphaChanged;
static bool s_bZBiasChanged;
static bool s_bZTextureTypeChanged;
static bool s_bDepthRangeChanged;
static bool s_bFogColorChanged;
static bool s_bFogParamChanged;
static bool s_bFogRangeAdjustChanged;
static int nLightsChanged[2]; // min,max
static float lastRGBAfull[2][4][4];
static u8 s_nTexDimsChanged;
static u8 s_nIndTexScaleChanged;
static u32 lastAlpha;
static u32 lastTexDims[8]; // width | height << 16 | wrap_s << 28 | wrap_t << 30
static u32 lastZBias;
static int nMaterialsChanged;
inline void SetPSConstant4f(unsigned int const_number, float f1, float f2, float f3, float f4)
{
g_renderer->SetPSConstant4f(const_number, f1, f2, f3, f4);
}
inline void SetPSConstant4fv(unsigned int const_number, const float *f)
{
g_renderer->SetPSConstant4fv(const_number, f);
}
inline void SetMultiPSConstant4fv(unsigned int const_number, unsigned int count, const float *f)
{
g_renderer->SetMultiPSConstant4fv(const_number, count, f);
}
void PixelShaderManager::Init()
{
lastAlpha = 0;
memset(lastTexDims, 0, sizeof(lastTexDims));
lastZBias = 0;
memset(lastRGBAfull, 0, sizeof(lastRGBAfull));
Dirty();
}
void PixelShaderManager::Dirty()
{
s_nColorsChanged[0] = s_nColorsChanged[1] = 15;
s_nTexDimsChanged = 0xFF;
s_nIndTexScaleChanged = 0xFF;
s_nIndTexMtxChanged = 15;
s_bAlphaChanged = s_bZBiasChanged = s_bZTextureTypeChanged = s_bDepthRangeChanged = true;
s_bFogRangeAdjustChanged = s_bFogColorChanged = s_bFogParamChanged = true;
nLightsChanged[0] = 0; nLightsChanged[1] = 0x80;
nMaterialsChanged = 15;
}
void PixelShaderManager::Shutdown()
{
}
void PixelShaderManager::SetConstants()
{
if (!g_ActiveConfig.backend_info.bSupportsGLSLUBO)
Dirty();
for (int i = 0; i < 2; ++i)
{
if (s_nColorsChanged[i])
{
int baseind = i ? C_KCOLORS : C_COLORS;
for (int j = 0; j < 4; ++j)
{
if (s_nColorsChanged[i] & (1 << j))
SetPSConstant4fv(baseind+j, &lastRGBAfull[i][j][0]);
}
s_nColorsChanged[i] = 0;
}
}
if (s_nTexDimsChanged)
{
for (int i = 0; i < 8; ++i)
{
if (s_nTexDimsChanged & (1<<i))
SetPSTextureDims(i);
}
s_nTexDimsChanged = 0;
}
if (s_bAlphaChanged)
{
SetPSConstant4f(C_ALPHA, (lastAlpha&0xff)/255.0f, ((lastAlpha>>8)&0xff)/255.0f, 0, ((lastAlpha>>16)&0xff)/255.0f);
s_bAlphaChanged = false;
}
if (s_bZTextureTypeChanged)
{
float ftemp[4];
switch (bpmem.ztex2.type)
{
case 0:
// 8 bits
ftemp[0] = 0; ftemp[1] = 0; ftemp[2] = 0; ftemp[3] = 255.0f/16777215.0f;
break;
case 1:
// 16 bits
ftemp[0] = 255.0f/16777215.0f; ftemp[1] = 0; ftemp[2] = 0; ftemp[3] = 65280.0f/16777215.0f;
break;
case 2:
// 24 bits
ftemp[0] = 16711680.0f/16777215.0f; ftemp[1] = 65280.0f/16777215.0f; ftemp[2] = 255.0f/16777215.0f; ftemp[3] = 0;
break;
}
SetPSConstant4fv(C_ZBIAS, ftemp);
s_bZTextureTypeChanged = false;
}
if (s_bZBiasChanged || s_bDepthRangeChanged)
{
// reversed gxsetviewport(xorig, yorig, width, height, nearz, farz)
// [0] = width/2
// [1] = height/2
// [2] = 16777215 * (farz - nearz)
// [3] = xorig + width/2 + 342
// [4] = yorig + height/2 + 342
// [5] = 16777215 * farz
//ERROR_LOG("pixel=%x,%x, bias=%x\n", bpmem.zcontrol.pixel_format, bpmem.ztex2.type, lastZBias);
SetPSConstant4f(C_ZBIAS+1, xfregs.viewport.farZ / 16777216.0f, xfregs.viewport.zRange / 16777216.0f, 0, (float)(lastZBias)/16777215.0f);
s_bZBiasChanged = s_bDepthRangeChanged = false;
}
// indirect incoming texture scales
if (s_nIndTexScaleChanged)
{
// set as two sets of vec4s, each containing S and T of two ind stages.
float f[8];
if (s_nIndTexScaleChanged & 0x03)
{
for (u32 i = 0; i < 2; ++i)
{
f[2 * i] = bpmem.texscale[0].getScaleS(i & 1);
f[2 * i + 1] = bpmem.texscale[0].getScaleT(i & 1);
PRIM_LOG("tex indscale%d: %f %f\n", i, f[2 * i], f[2 * i + 1]);
}
SetPSConstant4fv(C_INDTEXSCALE, f);
}
if (s_nIndTexScaleChanged & 0x0c) {
for (u32 i = 2; i < 4; ++i) {
f[2 * i] = bpmem.texscale[1].getScaleS(i & 1);
f[2 * i + 1] = bpmem.texscale[1].getScaleT(i & 1);
PRIM_LOG("tex indscale%d: %f %f\n", i, f[2 * i], f[2 * i + 1]);
}
SetPSConstant4fv(C_INDTEXSCALE+1, &f[4]);
}
s_nIndTexScaleChanged = 0;
}
if (s_nIndTexMtxChanged)
{
for (int i = 0; i < 3; ++i)
{
if (s_nIndTexMtxChanged & (1 << i))
{
int scale = ((u32)bpmem.indmtx[i].col0.s0 << 0) |
((u32)bpmem.indmtx[i].col1.s1 << 2) |
((u32)bpmem.indmtx[i].col2.s2 << 4);
float fscale = powf(2.0f, (float)(scale - 17)) / 1024.0f;
// xyz - static matrix
// TODO w - dynamic matrix scale / 256...... somehow / 4 works better
// rev 2972 - now using / 256.... verify that this works
SetPSConstant4f(C_INDTEXMTX + 2 * i,
bpmem.indmtx[i].col0.ma * fscale,
bpmem.indmtx[i].col1.mc * fscale,
bpmem.indmtx[i].col2.me * fscale,
fscale * 4.0f);
SetPSConstant4f(C_INDTEXMTX + 2 * i + 1,
bpmem.indmtx[i].col0.mb * fscale,
bpmem.indmtx[i].col1.md * fscale,
bpmem.indmtx[i].col2.mf * fscale,
fscale * 4.0f);
PRIM_LOG("indmtx%d: scale=%f, mat=(%f %f %f; %f %f %f)\n",
i, 1024.0f*fscale,
bpmem.indmtx[i].col0.ma * fscale, bpmem.indmtx[i].col1.mc * fscale, bpmem.indmtx[i].col2.me * fscale,
bpmem.indmtx[i].col0.mb * fscale, bpmem.indmtx[i].col1.md * fscale, bpmem.indmtx[i].col2.mf * fscale);
}
}
s_nIndTexMtxChanged = 0;
}
if (s_bFogColorChanged)
{
SetPSConstant4f(C_FOG, bpmem.fog.color.r / 255.0f, bpmem.fog.color.g / 255.0f, bpmem.fog.color.b / 255.0f, 0);
s_bFogColorChanged = false;
}
if (s_bFogParamChanged)
{
if(!g_ActiveConfig.bDisableFog)
{
//downscale magnitude to 0.24 bits
float b = (float)bpmem.fog.b_magnitude / 0xFFFFFF;
float b_shf = (float)(1 << bpmem.fog.b_shift);
SetPSConstant4f(C_FOG + 1, bpmem.fog.a.GetA(), b, bpmem.fog.c_proj_fsel.GetC(), b_shf);
}
else
SetPSConstant4f(C_FOG + 1, 0.0, 1.0, 0.0, 1.0);
s_bFogParamChanged = false;
}
if (s_bFogRangeAdjustChanged)
{
if(!g_ActiveConfig.bDisableFog && bpmem.fogRange.Base.Enabled == 1)
{
//bpmem.fogRange.Base.Center : center of the viewport in x axis. observation: bpmem.fogRange.Base.Center = realcenter + 342;
int center = ((u32)bpmem.fogRange.Base.Center) - 342;
// normalice center to make calculations easy
float ScreenSpaceCenter = center / (2.0f * xfregs.viewport.wd);
ScreenSpaceCenter = (ScreenSpaceCenter * 2.0f) - 1.0f;
//bpmem.fogRange.K seems to be a table of precalculated coeficients for the adjust factor
//observations: bpmem.fogRange.K[0].LO apears to be the lowest value and bpmem.fogRange.K[4].HI the largest
// they always seems to be larger than 256 so my teory is :
// they are the coeficients from the center to th e border of the screen
// so to simplify i use the hi coeficient as K in the shader taking 256 as the scale
SetPSConstant4f(C_FOG + 2, ScreenSpaceCenter, (float)Renderer::EFBToScaledX((int)(2.0f * xfregs.viewport.wd)), bpmem.fogRange.K[4].HI / 256.0f,0.0f);
}
else
SetPSConstant4f(C_FOG + 2, 0.0f, 1.0f, 1.0f, 0.0f); // Need to update these values for older hardware that fails to divide by zero in shaders.
s_bFogRangeAdjustChanged = false;
}
if (g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting) // config check added because the code in here was crashing for me inside SetPSConstant4f
{
if (nLightsChanged[0] >= 0)
{
// lights don't have a 1 to 1 mapping, the color component needs to be converted to 4 floats
int istart = nLightsChanged[0] / 0x10;
int iend = (nLightsChanged[1] + 15) / 0x10;
const float* xfmemptr = (const float*)&xfmem[0x10 * istart + XFMEM_LIGHTS];
for (int i = istart; i < iend; ++i)
{
u32 color = *(const u32*)(xfmemptr + 3);
float NormalizationCoef = 1 / 255.0f;
SetPSConstant4f(C_PLIGHTS + 5 * i,
((color >> 24) & 0xFF) * NormalizationCoef,
((color >> 16) & 0xFF) * NormalizationCoef,
((color >> 8) & 0xFF) * NormalizationCoef,
((color) & 0xFF) * NormalizationCoef);
xfmemptr += 4;
for (int j = 0; j < 4; ++j, xfmemptr += 3)
{
if (j == 1 &&
fabs(xfmemptr[0]) < 0.00001f &&
fabs(xfmemptr[1]) < 0.00001f &&
fabs(xfmemptr[2]) < 0.00001f)
{
// dist attenuation, make sure not equal to 0!!!
SetPSConstant4f(C_PLIGHTS+5*i+j+1, 0.00001f, xfmemptr[1], xfmemptr[2], 0);
}
else
SetPSConstant4fv(C_PLIGHTS+5*i+j+1, xfmemptr);
}
}
nLightsChanged[0] = nLightsChanged[1] = -1;
}
if (nMaterialsChanged)
{
float GC_ALIGNED16(material[4]);
float NormalizationCoef = 1 / 255.0f;
// TODO: This code is wrong. i goes out of range for xfregs.ambColor.
for (int i = 0; i < 4; ++i)
{
if (nMaterialsChanged & (1 << i))
{
u32 data = *(xfregs.ambColor + i);
material[0] = ((data >> 24) & 0xFF) * NormalizationCoef;
material[1] = ((data >> 16) & 0xFF) * NormalizationCoef;
material[2] = ((data >> 8) & 0xFF) * NormalizationCoef;
material[3] = ( data & 0xFF) * NormalizationCoef;
SetPSConstant4fv(C_PMATERIALS + i, material);
}
}
nMaterialsChanged = 0;
}
}
}
void PixelShaderManager::SetPSTextureDims(int texid)
{
// texdims.xy are reciprocals of the real texture dimensions
// texdims.zw are the scaled dimensions
float fdims[4];
TCoordInfo& tc = bpmem.texcoords[texid];
fdims[0] = 1.0f / (float)(lastTexDims[texid] & 0xffff);
fdims[1] = 1.0f / (float)((lastTexDims[texid] >> 16) & 0xfff);
fdims[2] = (float)(tc.s.scale_minus_1 + 1);
fdims[3] = (float)(tc.t.scale_minus_1 + 1);
PRIM_LOG("texdims%d: %f %f %f %f\n", texid, fdims[0], fdims[1], fdims[2], fdims[3]);
SetPSConstant4fv(C_TEXDIMS + texid, fdims);
}
// This one is high in profiles (0.5%). TODO: Move conversion out, only store the raw color value
// and update it when the shader constant is set, only.
void PixelShaderManager::SetColorChanged(int type, int num, bool high)
{
float *pf = &lastRGBAfull[type][num][0];
if (!high) {
int r = bpmem.tevregs[num].low.a;
int a = bpmem.tevregs[num].low.b;
pf[0] = (float)r * (1.0f / 255.0f);
pf[3] = (float)a * (1.0f / 255.0f);
} else {
int b = bpmem.tevregs[num].high.a;
int g = bpmem.tevregs[num].high.b;
pf[1] = (float)g * (1.0f / 255.0f);
pf[2] = (float)b * (1.0f / 255.0f);
}
s_nColorsChanged[type] |= 1 << num;
PRIM_LOG("pixel %scolor%d: %f %f %f %f\n", type?"k":"", num, pf[0], pf[1], pf[2], pf[3]);
}
void PixelShaderManager::SetAlpha(const AlphaFunc& alpha)
{
if ((alpha.hex & 0xffff) != lastAlpha)
{
lastAlpha = (lastAlpha & ~0xffff) | (alpha.hex & 0xffff);
s_bAlphaChanged = true;
}
}
void PixelShaderManager::SetDestAlpha(const ConstantAlpha& alpha)
{
if (alpha.alpha != (lastAlpha >> 16))
{
lastAlpha = (lastAlpha & ~0xff0000) | ((alpha.hex & 0xff) << 16);
s_bAlphaChanged = true;
}
}
void PixelShaderManager::SetTexDims(int texmapid, u32 width, u32 height, u32 wraps, u32 wrapt)
{
u32 wh = width | (height << 16) | (wraps << 28) | (wrapt << 30);
if (lastTexDims[texmapid] != wh)
{
lastTexDims[texmapid] = wh;
s_nTexDimsChanged |= 1 << texmapid;
}
}
void PixelShaderManager::SetZTextureBias(u32 bias)
{
if (lastZBias != bias)
{
s_bZBiasChanged = true;
lastZBias = bias;
}
}
void PixelShaderManager::SetViewportChanged()
{
s_bDepthRangeChanged = true;
}
void PixelShaderManager::SetIndTexScaleChanged(u8 stagemask)
{
s_nIndTexScaleChanged |= stagemask;
}
void PixelShaderManager::SetIndMatrixChanged(int matrixidx)
{
s_nIndTexMtxChanged |= 1 << matrixidx;
}
void PixelShaderManager::SetZTextureTypeChanged()
{
s_bZTextureTypeChanged = true;
}
void PixelShaderManager::SetTexCoordChanged(u8 texmapid)
{
s_nTexDimsChanged |= 1 << texmapid;
}
void PixelShaderManager::SetFogColorChanged()
{
s_bFogColorChanged = true;
}
void PixelShaderManager::SetFogParamChanged()
{
s_bFogParamChanged = true;
}
void PixelShaderManager::SetFogRangeAdjustChanged()
{
s_bFogRangeAdjustChanged = true;
}
void PixelShaderManager::SetColorMatrix(const float* pmatrix)
{
SetMultiPSConstant4fv(C_COLORMATRIX,7,pmatrix);
s_nColorsChanged[0] = s_nColorsChanged[1] = 15;
}
void PixelShaderManager::InvalidateXFRange(int start, int end)
{
if (start < XFMEM_LIGHTS_END && end > XFMEM_LIGHTS)
{
int _start = start < XFMEM_LIGHTS ? XFMEM_LIGHTS : start-XFMEM_LIGHTS;
int _end = end < XFMEM_LIGHTS_END ? end-XFMEM_LIGHTS : XFMEM_LIGHTS_END-XFMEM_LIGHTS;
if (nLightsChanged[0] == -1 )
{
nLightsChanged[0] = _start;
nLightsChanged[1] = _end;
}
else
{
if (nLightsChanged[0] > _start) nLightsChanged[0] = _start;
if (nLightsChanged[1] < _end) nLightsChanged[1] = _end;
}
}
}
void PixelShaderManager::SetMaterialColorChanged(int index)
{
nMaterialsChanged |= (1 << index);
}
void PixelShaderManager::DoState(PointerWrap &p)
{
p.Do(lastRGBAfull);
p.Do(lastAlpha);
p.Do(lastTexDims);
p.Do(lastZBias);
if (p.GetMode() == PointerWrap::MODE_READ)
{
Dirty();
}
}
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