// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "Constants.hpp"
#include "System/Math.hpp"
#include "System/Half.hpp"
#include <cstring>
namespace sw
{
Constants constants;
Constants::Constants()
{
static const unsigned int transposeBit0[16] =
{
0x00000000,
0x00000001,
0x00000010,
0x00000011,
0x00000100,
0x00000101,
0x00000110,
0x00000111,
0x00001000,
0x00001001,
0x00001010,
0x00001011,
0x00001100,
0x00001101,
0x00001110,
0x00001111
};
static const unsigned int transposeBit1[16] =
{
0x00000000,
0x00000002,
0x00000020,
0x00000022,
0x00000200,
0x00000202,
0x00000220,
0x00000222,
0x00002000,
0x00002002,
0x00002020,
0x00002022,
0x00002200,
0x00002202,
0x00002220,
0x00002222
};
static const unsigned int transposeBit2[16] =
{
0x00000000,
0x00000004,
0x00000040,
0x00000044,
0x00000400,
0x00000404,
0x00000440,
0x00000444,
0x00004000,
0x00004004,
0x00004040,
0x00004044,
0x00004400,
0x00004404,
0x00004440,
0x00004444
};
memcpy(&this->transposeBit0, transposeBit0, sizeof(transposeBit0));
memcpy(&this->transposeBit1, transposeBit1, sizeof(transposeBit1));
memcpy(&this->transposeBit2, transposeBit2, sizeof(transposeBit2));
static const ushort4 cWeight[17] =
{
{0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF}, // 0xFFFF / 1 = 0xFFFF
{0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF}, // 0xFFFF / 1 = 0xFFFF
{0x8000, 0x8000, 0x8000, 0x8000}, // 0xFFFF / 2 = 0x8000
{0x5555, 0x5555, 0x5555, 0x5555}, // 0xFFFF / 3 = 0x5555
{0x4000, 0x4000, 0x4000, 0x4000}, // 0xFFFF / 4 = 0x4000
{0x3333, 0x3333, 0x3333, 0x3333}, // 0xFFFF / 5 = 0x3333
{0x2AAA, 0x2AAA, 0x2AAA, 0x2AAA}, // 0xFFFF / 6 = 0x2AAA
{0x2492, 0x2492, 0x2492, 0x2492}, // 0xFFFF / 7 = 0x2492
{0x2000, 0x2000, 0x2000, 0x2000}, // 0xFFFF / 8 = 0x2000
{0x1C71, 0x1C71, 0x1C71, 0x1C71}, // 0xFFFF / 9 = 0x1C71
{0x1999, 0x1999, 0x1999, 0x1999}, // 0xFFFF / 10 = 0x1999
{0x1745, 0x1745, 0x1745, 0x1745}, // 0xFFFF / 11 = 0x1745
{0x1555, 0x1555, 0x1555, 0x1555}, // 0xFFFF / 12 = 0x1555
{0x13B1, 0x13B1, 0x13B1, 0x13B1}, // 0xFFFF / 13 = 0x13B1
{0x1249, 0x1249, 0x1249, 0x1249}, // 0xFFFF / 14 = 0x1249
{0x1111, 0x1111, 0x1111, 0x1111}, // 0xFFFF / 15 = 0x1111
{0x1000, 0x1000, 0x1000, 0x1000}, // 0xFFFF / 16 = 0x1000
};
static const float4 uvWeight[17] =
{
{1.0f / 1.0f, 1.0f / 1.0f, 1.0f / 1.0f, 1.0f / 1.0f},
{1.0f / 1.0f, 1.0f / 1.0f, 1.0f / 1.0f, 1.0f / 1.0f},
{1.0f / 2.0f, 1.0f / 2.0f, 1.0f / 2.0f, 1.0f / 2.0f},
{1.0f / 3.0f, 1.0f / 3.0f, 1.0f / 3.0f, 1.0f / 3.0f},
{1.0f / 4.0f, 1.0f / 4.0f, 1.0f / 4.0f, 1.0f / 4.0f},
{1.0f / 5.0f, 1.0f / 5.0f, 1.0f / 5.0f, 1.0f / 5.0f},
{1.0f / 6.0f, 1.0f / 6.0f, 1.0f / 6.0f, 1.0f / 6.0f},
{1.0f / 7.0f, 1.0f / 7.0f, 1.0f / 7.0f, 1.0f / 7.0f},
{1.0f / 8.0f, 1.0f / 8.0f, 1.0f / 8.0f, 1.0f / 8.0f},
{1.0f / 9.0f, 1.0f / 9.0f, 1.0f / 9.0f, 1.0f / 9.0f},
{1.0f / 10.0f, 1.0f / 10.0f, 1.0f / 10.0f, 1.0f / 10.0f},
{1.0f / 11.0f, 1.0f / 11.0f, 1.0f / 11.0f, 1.0f / 11.0f},
{1.0f / 12.0f, 1.0f / 12.0f, 1.0f / 12.0f, 1.0f / 12.0f},
{1.0f / 13.0f, 1.0f / 13.0f, 1.0f / 13.0f, 1.0f / 13.0f},
{1.0f / 14.0f, 1.0f / 14.0f, 1.0f / 14.0f, 1.0f / 14.0f},
{1.0f / 15.0f, 1.0f / 15.0f, 1.0f / 15.0f, 1.0f / 15.0f},
{1.0f / 16.0f, 1.0f / 16.0f, 1.0f / 16.0f, 1.0f / 16.0f},
};
static const float4 uvStart[17] =
{
{-0.0f / 2.0f, -0.0f / 2.0f, -0.0f / 2.0f, -0.0f / 2.0f},
{-0.0f / 2.0f, -0.0f / 2.0f, -0.0f / 2.0f, -0.0f / 2.0f},
{-1.0f / 4.0f, -1.0f / 4.0f, -1.0f / 4.0f, -1.0f / 4.0f},
{-2.0f / 6.0f, -2.0f / 6.0f, -2.0f / 6.0f, -2.0f / 6.0f},
{-3.0f / 8.0f, -3.0f / 8.0f, -3.0f / 8.0f, -3.0f / 8.0f},
{-4.0f / 10.0f, -4.0f / 10.0f, -4.0f / 10.0f, -4.0f / 10.0f},
{-5.0f / 12.0f, -5.0f / 12.0f, -5.0f / 12.0f, -5.0f / 12.0f},
{-6.0f / 14.0f, -6.0f / 14.0f, -6.0f / 14.0f, -6.0f / 14.0f},
{-7.0f / 16.0f, -7.0f / 16.0f, -7.0f / 16.0f, -7.0f / 16.0f},
{-8.0f / 18.0f, -8.0f / 18.0f, -8.0f / 18.0f, -8.0f / 18.0f},
{-9.0f / 20.0f, -9.0f / 20.0f, -9.0f / 20.0f, -9.0f / 20.0f},
{-10.0f / 22.0f, -10.0f / 22.0f, -10.0f / 22.0f, -10.0f / 22.0f},
{-11.0f / 24.0f, -11.0f / 24.0f, -11.0f / 24.0f, -11.0f / 24.0f},
{-12.0f / 26.0f, -12.0f / 26.0f, -12.0f / 26.0f, -12.0f / 26.0f},
{-13.0f / 28.0f, -13.0f / 28.0f, -13.0f / 28.0f, -13.0f / 28.0f},
{-14.0f / 30.0f, -14.0f / 30.0f, -14.0f / 30.0f, -14.0f / 30.0f},
{-15.0f / 32.0f, -15.0f / 32.0f, -15.0f / 32.0f, -15.0f / 32.0f},
};
memcpy(&this->cWeight, cWeight, sizeof(cWeight));
memcpy(&this->uvWeight, uvWeight, sizeof(uvWeight));
memcpy(&this->uvStart, uvStart, sizeof(uvStart));
static const unsigned int occlusionCount[16] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
memcpy(&this->occlusionCount, &occlusionCount, sizeof(occlusionCount));
for(int i = 0; i < 16; i++)
{
maskB4Q[i][0] = -(i >> 0 & 1);
maskB4Q[i][1] = -(i >> 1 & 1);
maskB4Q[i][2] = -(i >> 2 & 1);
maskB4Q[i][3] = -(i >> 3 & 1);
maskB4Q[i][4] = -(i >> 0 & 1);
maskB4Q[i][5] = -(i >> 1 & 1);
maskB4Q[i][6] = -(i >> 2 & 1);
maskB4Q[i][7] = -(i >> 3 & 1);
invMaskB4Q[i][0] = ~maskB4Q[i][0];
invMaskB4Q[i][1] = ~maskB4Q[i][1];
invMaskB4Q[i][2] = ~maskB4Q[i][2];
invMaskB4Q[i][3] = ~maskB4Q[i][3];
invMaskB4Q[i][4] = ~maskB4Q[i][4];
invMaskB4Q[i][5] = ~maskB4Q[i][5];
invMaskB4Q[i][6] = ~maskB4Q[i][6];
invMaskB4Q[i][7] = ~maskB4Q[i][7];
maskW4Q[i][0] = -(i >> 0 & 1);
maskW4Q[i][1] = -(i >> 1 & 1);
maskW4Q[i][2] = -(i >> 2 & 1);
maskW4Q[i][3] = -(i >> 3 & 1);
invMaskW4Q[i][0] = ~maskW4Q[i][0];
invMaskW4Q[i][1] = ~maskW4Q[i][1];
invMaskW4Q[i][2] = ~maskW4Q[i][2];
invMaskW4Q[i][3] = ~maskW4Q[i][3];
maskD4X[i][0] = -(i >> 0 & 1);
maskD4X[i][1] = -(i >> 1 & 1);
maskD4X[i][2] = -(i >> 2 & 1);
maskD4X[i][3] = -(i >> 3 & 1);
invMaskD4X[i][0] = ~maskD4X[i][0];
invMaskD4X[i][1] = ~maskD4X[i][1];
invMaskD4X[i][2] = ~maskD4X[i][2];
invMaskD4X[i][3] = ~maskD4X[i][3];
maskQ0Q[i] = -(i >> 0 & 1);
maskQ1Q[i] = -(i >> 1 & 1);
maskQ2Q[i] = -(i >> 2 & 1);
maskQ3Q[i] = -(i >> 3 & 1);
invMaskQ0Q[i] = ~maskQ0Q[i];
invMaskQ1Q[i] = ~maskQ1Q[i];
invMaskQ2Q[i] = ~maskQ2Q[i];
invMaskQ3Q[i] = ~maskQ3Q[i];
maskX0X[i][0] = maskX0X[i][1] = maskX0X[i][2] = maskX0X[i][3] = -(i >> 0 & 1);
maskX1X[i][0] = maskX1X[i][1] = maskX1X[i][2] = maskX1X[i][3] = -(i >> 1 & 1);
maskX2X[i][0] = maskX2X[i][1] = maskX2X[i][2] = maskX2X[i][3] = -(i >> 2 & 1);
maskX3X[i][0] = maskX3X[i][1] = maskX3X[i][2] = maskX3X[i][3] = -(i >> 3 & 1);
invMaskX0X[i][0] = invMaskX0X[i][1] = invMaskX0X[i][2] = invMaskX0X[i][3] = ~maskX0X[i][0];
invMaskX1X[i][0] = invMaskX1X[i][1] = invMaskX1X[i][2] = invMaskX1X[i][3] = ~maskX1X[i][0];
invMaskX2X[i][0] = invMaskX2X[i][1] = invMaskX2X[i][2] = invMaskX2X[i][3] = ~maskX2X[i][0];
invMaskX3X[i][0] = invMaskX3X[i][1] = invMaskX3X[i][2] = invMaskX3X[i][3] = ~maskX3X[i][0];
maskD01Q[i][0] = -(i >> 0 & 1);
maskD01Q[i][1] = -(i >> 1 & 1);
maskD23Q[i][0] = -(i >> 2 & 1);
maskD23Q[i][1] = -(i >> 3 & 1);
invMaskD01Q[i][0] = ~maskD01Q[i][0];
invMaskD01Q[i][1] = ~maskD01Q[i][1];
invMaskD23Q[i][0] = ~maskD23Q[i][0];
invMaskD23Q[i][1] = ~maskD23Q[i][1];
maskQ01X[i][0] = -(i >> 0 & 1);
maskQ01X[i][1] = -(i >> 1 & 1);
maskQ23X[i][0] = -(i >> 2 & 1);
maskQ23X[i][1] = -(i >> 3 & 1);
invMaskQ01X[i][0] = ~maskQ01X[i][0];
invMaskQ01X[i][1] = ~maskQ01X[i][1];
invMaskQ23X[i][0] = ~maskQ23X[i][0];
invMaskQ23X[i][1] = ~maskQ23X[i][1];
}
for(int i = 0; i < 8; i++)
{
mask565Q[i][0] =
mask565Q[i][1] =
mask565Q[i][2] =
mask565Q[i][3] = (i & 0x1 ? 0x001F : 0) | (i & 0x2 ? 0x07E0 : 0) | (i & 0x4 ? 0xF800 : 0);
}
for(int i = 0; i < 4; i++)
{
maskW01Q[i][0] = -(i >> 0 & 1);
maskW01Q[i][1] = -(i >> 1 & 1);
maskW01Q[i][2] = -(i >> 0 & 1);
maskW01Q[i][3] = -(i >> 1 & 1);
maskD01X[i][0] = -(i >> 0 & 1);
maskD01X[i][1] = -(i >> 1 & 1);
maskD01X[i][2] = -(i >> 0 & 1);
maskD01X[i][3] = -(i >> 1 & 1);
}
for(int i = 0; i < 256; i++)
{
sRGBtoLinear8_16[i] = (unsigned short)(sw::sRGBtoLinear((float)i / 0xFF) * 0xFFFF + 0.5f);
}
for(int i = 0; i < 64; i++)
{
sRGBtoLinear6_16[i] = (unsigned short)(sw::sRGBtoLinear((float)i / 0x3F) * 0xFFFF + 0.5f);
}
for(int i = 0; i < 32; i++)
{
sRGBtoLinear5_16[i] = (unsigned short)(sw::sRGBtoLinear((float)i / 0x1F) * 0xFFFF + 0.5f);
}
for(int i = 0; i < 0x1000; i++)
{
linearToSRGB12_16[i] = (unsigned short)(clamp(sw::linearToSRGB((float)i / 0x0FFF) * 0xFFFF + 0.5f, 0.0f, (float)0xFFFF));
sRGBtoLinear12_16[i] = (unsigned short)(clamp(sw::sRGBtoLinear((float)i / 0x0FFF) * 0xFFFF + 0.5f, 0.0f, (float)0xFFFF));
}
for(int q = 0; q < 4; q++)
{
for(int c = 0; c < 16; c++)
{
for(int i = 0; i < 4; i++)
{
const float X[4] = {+0.3125f, -0.3125f, -0.1250f, +0.1250f};
const float Y[4] = {+0.1250f, -0.1250f, +0.3125f, -0.3125f};
sampleX[q][c][i] = c & (1 << i) ? X[q] : 0.0f;
sampleY[q][c][i] = c & (1 << i) ? Y[q] : 0.0f;
weight[c][i] = c & (1 << i) ? 1.0f : 0.0f;
}
}
}
const int Xf[4] = {-5, +5, +2, -2}; // Fragment offsets
const int Yf[4] = {-2, +2, -5, +5}; // Fragment offsets
memcpy(&this->Xf, &Xf, sizeof(Xf));
memcpy(&this->Yf, &Yf, sizeof(Yf));
static const float4 X[4] = {{-0.3125f, -0.3125f, -0.3125f, -0.3125f},
{+0.3125f, +0.3125f, +0.3125f, +0.3125f},
{+0.1250f, +0.1250f, +0.1250f, +0.1250f},
{-0.1250f, -0.1250f, -0.1250f, -0.1250f}};
static const float4 Y[4] = {{-0.1250f, -0.1250f, -0.1250f, -0.1250f},
{+0.1250f, +0.1250f, +0.1250f, +0.1250f},
{-0.3125f, -0.3125f, -0.3125f, -0.3125f},
{+0.3125f, +0.3125f, +0.3125f, +0.3125f}};
memcpy(&this->X, &X, sizeof(X));
memcpy(&this->Y, &Y, sizeof(Y));
const dword maxX[16] = {0x00000000, 0x00000001, 0x00000100, 0x00000101, 0x00010000, 0x00010001, 0x00010100, 0x00010101, 0x01000000, 0x01000001, 0x01000100, 0x01000101, 0x01010000, 0x01010001, 0x01010100, 0x01010101};
const dword maxY[16] = {0x00000000, 0x00000002, 0x00000200, 0x00000202, 0x00020000, 0x00020002, 0x00020200, 0x00020202, 0x02000000, 0x02000002, 0x02000200, 0x02000202, 0x02020000, 0x02020002, 0x02020200, 0x02020202};
const dword maxZ[16] = {0x00000000, 0x00000004, 0x00000400, 0x00000404, 0x00040000, 0x00040004, 0x00040400, 0x00040404, 0x04000000, 0x04000004, 0x04000400, 0x04000404, 0x04040000, 0x04040004, 0x04040400, 0x04040404};
const dword minX[16] = {0x00000000, 0x00000008, 0x00000800, 0x00000808, 0x00080000, 0x00080008, 0x00080800, 0x00080808, 0x08000000, 0x08000008, 0x08000800, 0x08000808, 0x08080000, 0x08080008, 0x08080800, 0x08080808};
const dword minY[16] = {0x00000000, 0x00000010, 0x00001000, 0x00001010, 0x00100000, 0x00100010, 0x00101000, 0x00101010, 0x10000000, 0x10000010, 0x10001000, 0x10001010, 0x10100000, 0x10100010, 0x10101000, 0x10101010};
const dword minZ[16] = {0x00000000, 0x00000020, 0x00002000, 0x00002020, 0x00200000, 0x00200020, 0x00202000, 0x00202020, 0x20000000, 0x20000020, 0x20002000, 0x20002020, 0x20200000, 0x20200020, 0x20202000, 0x20202020};
const dword fini[16] = {0x00000000, 0x00000080, 0x00008000, 0x00008080, 0x00800000, 0x00800080, 0x00808000, 0x00808080, 0x80000000, 0x80000080, 0x80008000, 0x80008080, 0x80800000, 0x80800080, 0x80808000, 0x80808080};
memcpy(&this->maxX, &maxX, sizeof(maxX));
memcpy(&this->maxY, &maxY, sizeof(maxY));
memcpy(&this->maxZ, &maxZ, sizeof(maxZ));
memcpy(&this->minX, &minX, sizeof(minX));
memcpy(&this->minY, &minY, sizeof(minY));
memcpy(&this->minZ, &minZ, sizeof(minZ));
memcpy(&this->fini, &fini, sizeof(fini));
static const dword4 maxPos = {0x7F7FFFFF, 0x7F7FFFFF, 0x7F7FFFFF, 0x7F7FFFFE};
memcpy(&this->maxPos, &maxPos, sizeof(maxPos));
static const float4 unscaleByte = {1.0f / 0xFF, 1.0f / 0xFF, 1.0f / 0xFF, 1.0f / 0xFF};
static const float4 unscaleSByte = {1.0f / 0x7F, 1.0f / 0x7F, 1.0f / 0x7F, 1.0f / 0x7F};
static const float4 unscaleShort = {1.0f / 0x7FFF, 1.0f / 0x7FFF, 1.0f / 0x7FFF, 1.0f / 0x7FFF};
static const float4 unscaleUShort = {1.0f / 0xFFFF, 1.0f / 0xFFFF, 1.0f / 0xFFFF, 1.0f / 0xFFFF};
static const float4 unscaleInt = {1.0f / 0x7FFFFFFF, 1.0f / 0x7FFFFFFF, 1.0f / 0x7FFFFFFF, 1.0f / 0x7FFFFFFF};
static const float4 unscaleUInt = {1.0f / 0xFFFFFFFF, 1.0f / 0xFFFFFFFF, 1.0f / 0xFFFFFFFF, 1.0f / 0xFFFFFFFF};
static const float4 unscaleFixed = {1.0f / 0x00010000, 1.0f / 0x00010000, 1.0f / 0x00010000, 1.0f / 0x00010000};
memcpy(&this->unscaleByte, &unscaleByte, sizeof(unscaleByte));
memcpy(&this->unscaleSByte, &unscaleSByte, sizeof(unscaleSByte));
memcpy(&this->unscaleShort, &unscaleShort, sizeof(unscaleShort));
memcpy(&this->unscaleUShort, &unscaleUShort, sizeof(unscaleUShort));
memcpy(&this->unscaleInt, &unscaleInt, sizeof(unscaleInt));
memcpy(&this->unscaleUInt, &unscaleUInt, sizeof(unscaleUInt));
memcpy(&this->unscaleFixed, &unscaleFixed, sizeof(unscaleFixed));
for(int i = 0; i <= 0xFFFF; i++)
{
half2float[i] = (float)reinterpret_cast<half&>(i);
}
}
}