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1936 lines
73 KiB
HLSL
1936 lines
73 KiB
HLSL
//--------------------------------------------------------------------------------------
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// File: BC7Encode.hlsl
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//
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// The Compute Shader for BC7 Encoder
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//--------------------------------------------------------------------------------------
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#define REF_DEVICE
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#ifndef ASPM_HLSL
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#define ASPM_HLSL
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#endif
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#define CHAR_LENGTH 8
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#define NCHANNELS 4
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#define BC7_UNORM 98
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#define MAX_UINT 0xFFFFFFFF
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#define MIN_UINT 0
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static const uint candidateSectionBit[64] = //Associated to partition 0-63
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{
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0xCCCC, 0x8888, 0xEEEE, 0xECC8,
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0xC880, 0xFEEC, 0xFEC8, 0xEC80,
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0xC800, 0xFFEC, 0xFE80, 0xE800,
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0xFFE8, 0xFF00, 0xFFF0, 0xF000,
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0xF710, 0x008E, 0x7100, 0x08CE,
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0x008C, 0x7310, 0x3100, 0x8CCE,
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0x088C, 0x3110, 0x6666, 0x366C,
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0x17E8, 0x0FF0, 0x718E, 0x399C,
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0xaaaa, 0xf0f0, 0x5a5a, 0x33cc,
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0x3c3c, 0x55aa, 0x9696, 0xa55a,
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0x73ce, 0x13c8, 0x324c, 0x3bdc,
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0x6996, 0xc33c, 0x9966, 0x660,
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0x272, 0x4e4, 0x4e40, 0x2720,
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0xc936, 0x936c, 0x39c6, 0x639c,
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0x9336, 0x9cc6, 0x817e, 0xe718,
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0xccf0, 0xfcc, 0x7744, 0xee22,
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};
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static const uint candidateSectionBit2[64] = //Associated to partition 64-127
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{
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0xaa685050, 0x6a5a5040, 0x5a5a4200, 0x5450a0a8,
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0xa5a50000, 0xa0a05050, 0x5555a0a0, 0x5a5a5050,
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0xaa550000, 0xaa555500, 0xaaaa5500, 0x90909090,
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0x94949494, 0xa4a4a4a4, 0xa9a59450, 0x2a0a4250,
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0xa5945040, 0x0a425054, 0xa5a5a500, 0x55a0a0a0,
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0xa8a85454, 0x6a6a4040, 0xa4a45000, 0x1a1a0500,
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0x0050a4a4, 0xaaa59090, 0x14696914, 0x69691400,
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0xa08585a0, 0xaa821414, 0x50a4a450, 0x6a5a0200,
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0xa9a58000, 0x5090a0a8, 0xa8a09050, 0x24242424,
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0x00aa5500, 0x24924924, 0x24499224, 0x50a50a50,
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0x500aa550, 0xaaaa4444, 0x66660000, 0xa5a0a5a0,
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0x50a050a0, 0x69286928, 0x44aaaa44, 0x66666600,
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0xaa444444, 0x54a854a8, 0x95809580, 0x96969600,
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0xa85454a8, 0x80959580, 0xaa141414, 0x96960000,
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0xaaaa1414, 0xa05050a0, 0xa0a5a5a0, 0x96000000,
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0x40804080, 0xa9a8a9a8, 0xaaaaaa44, 0x2a4a5254,
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};
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static const uint2 candidateFixUpIndex1D[128] =
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{
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{ 2, 0},{ 8, 0},{ 2, 0},
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{ 2, 0},{ 8, 0},{ 8, 0},{15, 0},
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{ 2, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{ 8, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{15, 0},{15, 0},{ 6, 0},{ 8, 0},
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{ 2, 0},{ 8, 0},{15, 0},{15, 0},
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{ 2, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{ 2, 0},{15, 0},{15, 0},{ 6, 0},
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{ 6, 0},{ 2, 0},{ 6, 0},{ 8, 0},
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{15, 0},{15, 0},{ 2, 0},{ 2, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{ 2, 0},{ 2, 0},{15, 0},
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//candidateFixUpIndex1D[i][1], i < 64 should not be used
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{ 3,15},{ 3, 8},{15, 8},{15, 3},
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{ 8,15},{ 3,15},{15, 3},{15, 8},
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{ 8,15},{ 8,15},{ 6,15},{ 6,15},
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{ 6,15},{ 5,15},{ 3,15},{ 3, 8},
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{ 3,15},{ 3, 8},{ 8,15},{15, 3},
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{ 3,15},{ 3, 8},{ 6,15},{10, 8},
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{ 5, 3},{ 8,15},{ 8, 6},{ 6,10},
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{ 8,15},{ 5,15},{15,10},{15, 8},
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{ 8,15},{15, 3},{ 3,15},{ 5,10},
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{ 6,10},{10, 8},{ 8, 9},{15,10},
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{15, 6},{ 3,15},{15, 8},{ 5,15},
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{15, 3},{15, 6},{15, 6},{15, 8}, //The Spec doesn't mark the first fixed up index in this row, so I apply 15 for them, and seems correct
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{ 3,15},{15, 3},{ 5,15},{ 5,15},
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{ 5,15},{ 8,15},{ 5,15},{10,15},
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{ 5,15},{10,15},{ 8,15},{13,15},
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{15, 3},{12,15},{ 3,15},{ 3, 8},
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};
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static const uint2 candidateFixUpIndex1DOrdered[128] = //Same with candidateFixUpIndex1D but order the result when i >= 64
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{
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{ 2, 0},{ 8, 0},{ 2, 0},
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{ 2, 0},{ 8, 0},{ 8, 0},{15, 0},
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{ 2, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{ 8, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{15, 0},{15, 0},{ 6, 0},{ 8, 0},
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{ 2, 0},{ 8, 0},{15, 0},{15, 0},
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{ 2, 0},{ 8, 0},{ 2, 0},{ 2, 0},
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{ 2, 0},{15, 0},{15, 0},{ 6, 0},
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{ 6, 0},{ 2, 0},{ 6, 0},{ 8, 0},
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{15, 0},{15, 0},{ 2, 0},{ 2, 0},
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{15, 0},{15, 0},{15, 0},{15, 0},
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{15, 0},{ 2, 0},{ 2, 0},{15, 0},
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//candidateFixUpIndex1DOrdered[i][1], i < 64 should not be used
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{ 3,15},{ 3, 8},{ 8,15},{ 3,15},
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{ 8,15},{ 3,15},{ 3,15},{ 8,15},
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{ 8,15},{ 8,15},{ 6,15},{ 6,15},
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{ 6,15},{ 5,15},{ 3,15},{ 3, 8},
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{ 3,15},{ 3, 8},{ 8,15},{ 3,15},
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{ 3,15},{ 3, 8},{ 6,15},{ 8,10},
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{ 3, 5},{ 8,15},{ 6, 8},{ 6,10},
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{ 8,15},{ 5,15},{10,15},{ 8,15},
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{ 8,15},{ 3,15},{ 3,15},{ 5,10},
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{ 6,10},{ 8,10},{ 8, 9},{10,15},
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{ 6,15},{ 3,15},{ 8,15},{ 5,15},
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{ 3,15},{ 6,15},{ 6,15},{ 8,15}, //The Spec doesn't mark the first fixed up index in this row, so I apply 15 for them, and seems correct
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{ 3,15},{ 3,15},{ 5,15},{ 5,15},
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{ 5,15},{ 8,15},{ 5,15},{10,15},
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{ 5,15},{10,15},{ 8,15},{13,15},
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{ 3,15},{12,15},{ 3,15},{ 3, 8},
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};
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//static const uint4x4 candidateRotation[4] =
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//{
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// {1,0,0,0},{0,1,0,0},{0,0,1,0},{0,0,0,1},
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// {0,0,0,1},{0,1,0,0},{0,0,1,0},{1,0,0,0},
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// {1,0,0,0},{0,0,0,1},{0,0,1,0},{0,1,0,0},
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// {1,0,0,0},{0,1,0,0},{0,0,0,1},{0,0,1,0}
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//};
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//static const uint2 candidateIndexPrec[8] = {{3,0},{3,0},{2,0},{2,0},
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// {2,3}, //color index and alpha index can exchange
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// {2,2},{4,4},{2,2}};
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static const uint aWeight[3][16] = { {0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64},
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{0, 9, 18, 27, 37, 46, 55, 64, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 21, 43, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} };
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//4 bit index: 0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64
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static const uint aStep[3][64] = { { 0, 0, 0, 1, 1, 1, 1, 2,
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2, 2, 2, 2, 3, 3, 3, 3,
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4, 4, 4, 4, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 7, 7, 7,
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7, 8, 8, 8, 8, 9, 9, 9,
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9,10,10,10,10,10,11,11,
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11,11,12,12,12,12,13,13,
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13,13,14,14,14,14,15,15 },
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//3 bit index: 0, 9, 18, 27, 37, 46, 55, 64
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{ 0,0,0,0,0,1,1,1,
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1,1,1,1,1,1,2,2,
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2,2,2,2,2,2,2,3,
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3,3,3,3,3,3,3,3,
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3,4,4,4,4,4,4,4,
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4,4,5,5,5,5,5,5,
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5,5,5,6,6,6,6,6,
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6,6,6,6,7,7,7,7 },
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//2 bit index: 0, 21, 43, 64
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{ 0,0,0,0,0,0,0,0,
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0,0,0,1,1,1,1,1,
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1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,
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1,2,2,2,2,2,2,2,
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2,2,2,2,2,2,2,2,
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2,2,2,2,2,2,3,3,
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3,3,3,3,3,3,3,3 } };
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cbuffer cbCS : register( b0 )
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{
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uint g_tex_width;
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uint g_num_block_x;
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uint g_format;
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uint g_mode_id;
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uint g_start_block_id;
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uint g_num_total_blocks;
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float g_alpha_weight;
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float g_quality;
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};
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//Forward declaration
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uint2x4 compress_endpoints0( inout uint2x4 endPoint, uint2 P ); //Mode = 0
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uint2x4 compress_endpoints1( inout uint2x4 endPoint, uint2 P ); //Mode = 1
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uint2x4 compress_endpoints2( inout uint2x4 endPoint ); //Mode = 2
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uint2x4 compress_endpoints3( inout uint2x4 endPoint, uint2 P ); //Mode = 3
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uint2x4 compress_endpoints7( inout uint2x4 endPoint, uint2 P ); //Mode = 7
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uint2x4 compress_endpoints6( inout uint2x4 endPoint, uint2 P ); //Mode = 6
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uint2x4 compress_endpoints4( inout uint2x4 endPoint ); //Mode = 4
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uint2x4 compress_endpoints5( inout uint2x4 endPoint ); //Mode = 5
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void block_package0( out uint4 block, uint partition, uint threadBase ); //Mode0
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void block_package1( out uint4 block, uint partition, uint threadBase ); //Mode1
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void block_package2( out uint4 block, uint partition, uint threadBase ); //Mode2
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void block_package3( out uint4 block, uint partition, uint threadBase ); //Mode3
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void block_package4( out uint4 block, uint rotation, uint index_selector, uint threadBase ); //Mode4
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void block_package5( out uint4 block, uint rotation, uint threadBase ); //Mode5
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void block_package6( out uint4 block, uint threadBase ); //Mode6
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void block_package7( out uint4 block, uint partition, uint threadBase ); //Mode7
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void swap(inout uint4 lhs, inout uint4 rhs)
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{
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uint4 tmp = lhs;
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lhs = rhs;
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rhs = tmp;
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}
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void swap(inout uint3 lhs, inout uint3 rhs)
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{
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uint3 tmp = lhs;
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lhs = rhs;
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rhs = tmp;
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}
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void swap(inout uint lhs, inout uint rhs)
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{
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uint tmp = lhs;
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lhs = rhs;
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rhs = tmp;
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}
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uint ComputeError(in uint4 a, in uint4 b)
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{
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return dot(a.rgb, b.rgb) + g_alpha_weight * a.a*b.a;
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}
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void Ensure_A_Is_Larger( inout uint4 a, inout uint4 b )
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{
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if ( a.x < b.x )
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swap( a.x, b.x );
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if ( a.y < b.y )
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swap( a.y, b.y );
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if ( a.z < b.z )
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swap( a.z, b.z );
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if ( a.w < b.w )
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swap( a.w, b.w );
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}
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Texture2D g_Input : register( t0 );
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StructuredBuffer<uint4> g_InBuff : register( t1 );
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RWStructuredBuffer<uint4> g_OutBuff : register( u0 );
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#define THREAD_GROUP_SIZE 64
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#define BLOCK_SIZE_Y 4
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#define BLOCK_SIZE_X 4
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#define BLOCK_SIZE (BLOCK_SIZE_Y * BLOCK_SIZE_X)
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struct BufferShared
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{
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uint4 pixel;
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uint error;
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uint mode;
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uint partition;
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uint index_selector;
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uint rotation;
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uint4 endPoint_low;
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uint4 endPoint_high;
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uint4 endPoint_low_quantized;
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uint4 endPoint_high_quantized;
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};
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groupshared BufferShared shared_temp[THREAD_GROUP_SIZE];
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[numthreads( THREAD_GROUP_SIZE, 1, 1 )]
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void TryMode456CS( uint GI : SV_GroupIndex, uint3 groupID : SV_GroupID ) // mode 4 5 6 all have 1 subset per block, and fix-up index is always index 0
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{
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// we process 4 BC blocks per thread group
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const uint MAX_USED_THREAD = 16; // pixels in a BC (block compressed) block
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uint BLOCK_IN_GROUP = THREAD_GROUP_SIZE / MAX_USED_THREAD; // the number of BC blocks a thread group processes = 64 / 16 = 4
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uint blockInGroup = GI / MAX_USED_THREAD; // what BC block this thread is on within this thread group
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uint blockID = g_start_block_id + groupID.x * BLOCK_IN_GROUP + blockInGroup; // what global BC block this thread is on
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uint threadBase = blockInGroup * MAX_USED_THREAD; // the first id of the pixel in this BC block in this thread group
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uint threadInBlock = GI - threadBase; // id of the pixel in this BC block
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#ifndef REF_DEVICE
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if (blockID >= g_num_total_blocks)
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{
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return;
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}
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#endif
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uint block_y = blockID / g_num_block_x;
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uint block_x = blockID - block_y * g_num_block_x;
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uint base_x = block_x * BLOCK_SIZE_X;
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uint base_y = block_y * BLOCK_SIZE_Y;
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if (threadInBlock < 16)
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{
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shared_temp[GI].pixel = clamp(uint4(g_Input.Load( uint3( base_x + threadInBlock % 4, base_y + threadInBlock / 4, 0 ) ) * 255), 0, 255);
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shared_temp[GI].endPoint_low = shared_temp[GI].pixel;
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shared_temp[GI].endPoint_high = shared_temp[GI].pixel;
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}
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#ifdef REF_DEVICE
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GroupMemoryBarrierWithGroupSync();
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#endif
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if (threadInBlock < 8)
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{
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shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 8].endPoint_low);
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shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 8].endPoint_high);
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}
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#ifdef REF_DEVICE
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GroupMemoryBarrierWithGroupSync();
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#endif
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if (threadInBlock < 4)
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{
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shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 4].endPoint_low);
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shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 4].endPoint_high);
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}
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#ifdef REF_DEVICE
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GroupMemoryBarrierWithGroupSync();
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#endif
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if (threadInBlock < 2)
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{
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shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 2].endPoint_low);
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shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 2].endPoint_high);
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}
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#ifdef REF_DEVICE
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GroupMemoryBarrierWithGroupSync();
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#endif
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if (threadInBlock < 1)
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{
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shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 1].endPoint_low);
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shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 1].endPoint_high);
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}
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#ifdef REF_DEVICE
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GroupMemoryBarrierWithGroupSync();
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#endif
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uint2x4 endPoint;
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endPoint[0] = shared_temp[threadBase].endPoint_low;
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endPoint[1] = shared_temp[threadBase].endPoint_high;
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uint error = 0xFFFFFFFF;
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uint mode = 0;
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uint index_selector = 0;
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uint rotation = 0;
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uint2 indexPrec;
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if (threadInBlock < 8) // all threads of threadInBlock < 8 will be working on trying out mode 4, since only mode 4 has index selector bit
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{
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if (0 == (threadInBlock & 1)) // thread 0, 2, 4, 6
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{
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//2 represents 2bit index precision; 1 represents 3bit index precision
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index_selector = 0;
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indexPrec = uint2( 2, 1 );
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}
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else // thread 1, 3, 5, 7
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{
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//2 represents 2bit index precision; 1 represents 3bit index precision
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index_selector = 1;
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indexPrec = uint2( 1, 2 );
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}
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}
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else
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{
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//2 represents 2bit index precision
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indexPrec = uint2( 2, 2 );
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}
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uint4 pixel_r;
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uint color_index;
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uint alpha_index;
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int4 span;
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int2 span_norm_sqr;
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int2 dotProduct;
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if (threadInBlock < 12) // Try mode 4 5 in threads 0..11
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{
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// mode 4 5 have component rotation
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if ((threadInBlock < 2) || (8 == threadInBlock)) // rotation = 0 in thread 0, 1
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{
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rotation = 0;
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}
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else if ((threadInBlock < 4) || (9 == threadInBlock)) // rotation = 1 in thread 2, 3
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{
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endPoint[0].ra = endPoint[0].ar;
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endPoint[1].ra = endPoint[1].ar;
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rotation = 1;
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}
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else if ((threadInBlock < 6) || (10 == threadInBlock)) // rotation = 2 in thread 4, 5
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{
|
|
endPoint[0].ga = endPoint[0].ag;
|
|
endPoint[1].ga = endPoint[1].ag;
|
|
|
|
rotation = 2;
|
|
}
|
|
else if ((threadInBlock < 8) || (11 == threadInBlock)) // rotation = 3 in thread 6, 7
|
|
{
|
|
endPoint[0].ba = endPoint[0].ab;
|
|
endPoint[1].ba = endPoint[1].ab;
|
|
|
|
rotation = 3;
|
|
}
|
|
|
|
if (threadInBlock < 8) // try mode 4 in threads 0..7
|
|
{
|
|
// mode 4 thread distribution
|
|
// Thread 0 1 2 3 4 5 6 7
|
|
// Rotation 0 0 1 1 2 2 3 3
|
|
// Index selector 0 1 0 1 0 1 0 1
|
|
|
|
mode = 4;
|
|
compress_endpoints4( endPoint );
|
|
}
|
|
else // try mode 5 in threads 8..11
|
|
{
|
|
// mode 5 thread distribution
|
|
// Thread 8 9 10 11
|
|
// Rotation 0 1 2 3
|
|
|
|
mode = 5;
|
|
compress_endpoints5( endPoint );
|
|
}
|
|
|
|
uint4 pixel = shared_temp[threadBase + 0].pixel;
|
|
if (1 == rotation)
|
|
{
|
|
pixel.ra = pixel.ar;
|
|
}
|
|
else if (2 == rotation)
|
|
{
|
|
pixel.ga = pixel.ag;
|
|
}
|
|
else if (3 == rotation)
|
|
{
|
|
pixel.ba = pixel.ab;
|
|
}
|
|
|
|
span = endPoint[1] - endPoint[0];
|
|
span_norm_sqr = uint2( dot( span.rgb, span.rgb ), span.a * span.a );
|
|
|
|
// in mode 4 5 6, end point 0 must be closer to pixel 0 than end point 1, because of the fix-up index is always index 0
|
|
// TODO: this shouldn't be necessary here in error calculation
|
|
/*
|
|
dotProduct = int2( dot( span.rgb, pixel.rgb - endPoint[0].rgb ), span.a * ( pixel.a - endPoint[0].a ) );
|
|
if ( span_norm_sqr.x > 0 && dotProduct.x > 0 && uint( dotProduct.x * 63.49999 ) > uint( 32 * span_norm_sqr.x ) )
|
|
{
|
|
span.rgb = -span.rgb;
|
|
swap(endPoint[0].rgb, endPoint[1].rgb);
|
|
}
|
|
if ( span_norm_sqr.y > 0 && dotProduct.y > 0 && uint( dotProduct.y * 63.49999 ) > uint( 32 * span_norm_sqr.y ) )
|
|
{
|
|
span.a = -span.a;
|
|
swap(endPoint[0].a, endPoint[1].a);
|
|
}
|
|
*/
|
|
|
|
// should be the same as above
|
|
dotProduct = int2( dot( pixel.rgb - endPoint[0].rgb, pixel.rgb - endPoint[0].rgb ), dot( pixel.rgb - endPoint[1].rgb, pixel.rgb - endPoint[1].rgb ) );
|
|
if ( dotProduct.x > dotProduct.y )
|
|
{
|
|
span.rgb = -span.rgb;
|
|
swap(endPoint[0].rgb, endPoint[1].rgb);
|
|
}
|
|
dotProduct = int2( dot( pixel.a - endPoint[0].a, pixel.a - endPoint[0].a ), dot( pixel.a - endPoint[1].a, pixel.a - endPoint[1].a ) );
|
|
if ( dotProduct.x > dotProduct.y )
|
|
{
|
|
span.a = -span.a;
|
|
swap(endPoint[0].a, endPoint[1].a);
|
|
}
|
|
|
|
error = 0;
|
|
for ( uint i = 0; i < 16; i ++ )
|
|
{
|
|
pixel = shared_temp[threadBase + i].pixel;
|
|
if (1 == rotation)
|
|
{
|
|
pixel.ra = pixel.ar;
|
|
}
|
|
else if (2 == rotation)
|
|
{
|
|
pixel.ga = pixel.ag;
|
|
}
|
|
else if (3 == rotation)
|
|
{
|
|
pixel.ba = pixel.ab;
|
|
}
|
|
|
|
dotProduct.x = dot( span.rgb, pixel.rgb - endPoint[0].rgb );
|
|
color_index = ( span_norm_sqr.x <= 0 /*endPoint[0] == endPoint[1]*/ || dotProduct.x <= 0 /*pixel == endPoint[0]*/ ) ? 0
|
|
: ( ( dotProduct.x < span_norm_sqr.x ) ? aStep[indexPrec.x][ uint( dotProduct.x * 63.49999 / span_norm_sqr.x ) ] : aStep[indexPrec.x][63] );
|
|
dotProduct.y = dot( span.a, pixel.a - endPoint[0].a );
|
|
alpha_index = ( span_norm_sqr.y <= 0 || dotProduct.y <= 0 ) ? 0
|
|
: ( ( dotProduct.y < span_norm_sqr.y ) ? aStep[indexPrec.y][ uint( dotProduct.y * 63.49999 / span_norm_sqr.y ) ] : aStep[indexPrec.y][63] );
|
|
|
|
// the same color_index and alpha_index should be used for reconstruction, so this should be left commented out
|
|
/*if (index_selector)
|
|
{
|
|
swap(color_index, alpha_index);
|
|
}*/
|
|
|
|
pixel_r.rgb = ( ( 64 - aWeight[indexPrec.x][color_index] ) * endPoint[0].rgb +
|
|
aWeight[indexPrec.x][color_index] * endPoint[1].rgb +
|
|
32 ) >> 6;
|
|
pixel_r.a = ( ( 64 - aWeight[indexPrec.y][alpha_index] ) * endPoint[0].a +
|
|
aWeight[indexPrec.y][alpha_index] * endPoint[1].a +
|
|
32 ) >> 6;
|
|
|
|
Ensure_A_Is_Larger( pixel_r, pixel );
|
|
pixel_r -= pixel;
|
|
if (1 == rotation)
|
|
{
|
|
pixel_r.ra = pixel_r.ar;
|
|
}
|
|
else if (2 == rotation)
|
|
{
|
|
pixel_r.ga = pixel_r.ag;
|
|
}
|
|
else if (3 == rotation)
|
|
{
|
|
pixel_r.ba = pixel_r.ab;
|
|
}
|
|
error += ComputeError(pixel_r, pixel_r);
|
|
}
|
|
}
|
|
else if (threadInBlock < 16) // Try mode 6 in threads 12..15, since in mode 4 5 6, only mode 6 has p bit
|
|
{
|
|
uint p = threadInBlock - 12;
|
|
|
|
compress_endpoints6( endPoint, uint2(p >> 0, p >> 1) & 1 );
|
|
|
|
uint4 pixel = shared_temp[threadBase + 0].pixel;
|
|
|
|
span = endPoint[1] - endPoint[0];
|
|
span_norm_sqr = dot( span, span );
|
|
dotProduct = dot( span, pixel - endPoint[0] );
|
|
if ( span_norm_sqr.x > 0 && dotProduct.x >= 0 && uint( dotProduct.x * 63.49999 ) > uint( 32 * span_norm_sqr.x ) )
|
|
{
|
|
span = -span;
|
|
swap(endPoint[0], endPoint[1]);
|
|
}
|
|
|
|
error = 0;
|
|
for ( uint i = 0; i < 16; i ++ )
|
|
{
|
|
pixel = shared_temp[threadBase + i].pixel;
|
|
|
|
dotProduct.x = dot( span, pixel - endPoint[0] );
|
|
color_index = ( span_norm_sqr.x <= 0 || dotProduct.x <= 0 ) ? 0
|
|
: ( ( dotProduct.x < span_norm_sqr.x ) ? aStep[0][ uint( dotProduct.x * 63.49999 / span_norm_sqr.x ) ] : aStep[0][63] );
|
|
|
|
pixel_r = ( ( 64 - aWeight[0][color_index] ) * endPoint[0]
|
|
+ aWeight[0][color_index] * endPoint[1] + 32 ) >> 6;
|
|
|
|
Ensure_A_Is_Larger( pixel_r, pixel );
|
|
pixel_r -= pixel;
|
|
error += ComputeError(pixel_r, pixel_r);
|
|
}
|
|
|
|
mode = 6;
|
|
rotation = p; // Borrow rotation for p
|
|
}
|
|
|
|
shared_temp[GI].error = error;
|
|
shared_temp[GI].mode = mode;
|
|
shared_temp[GI].index_selector = index_selector;
|
|
shared_temp[GI].rotation = rotation;
|
|
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
if (threadInBlock < 8)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 8].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 8].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 8].mode;
|
|
shared_temp[GI].index_selector = shared_temp[GI + 8].index_selector;
|
|
shared_temp[GI].rotation = shared_temp[GI + 8].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 4)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 4].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 4].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 4].mode;
|
|
shared_temp[GI].index_selector = shared_temp[GI + 4].index_selector;
|
|
shared_temp[GI].rotation = shared_temp[GI + 4].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 2)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 2].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 2].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 2].mode;
|
|
shared_temp[GI].index_selector = shared_temp[GI + 2].index_selector;
|
|
shared_temp[GI].rotation = shared_temp[GI + 2].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 1)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 1].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 1].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 1].mode;
|
|
shared_temp[GI].index_selector = shared_temp[GI + 1].index_selector;
|
|
shared_temp[GI].rotation = shared_temp[GI + 1].rotation;
|
|
}
|
|
|
|
g_OutBuff[blockID] = uint4(shared_temp[GI].error, (shared_temp[GI].index_selector << 31) | shared_temp[GI].mode,
|
|
0, shared_temp[GI].rotation); // rotation is indeed rotation for mode 4 5. for mode 6, rotation is p bit
|
|
}
|
|
}
|
|
|
|
[numthreads( THREAD_GROUP_SIZE, 1, 1 )]
|
|
void TryMode137CS( uint GI : SV_GroupIndex, uint3 groupID : SV_GroupID ) // mode 1 3 7 all have 2 subsets per block
|
|
{
|
|
const uint MAX_USED_THREAD = 64;
|
|
uint BLOCK_IN_GROUP = THREAD_GROUP_SIZE / MAX_USED_THREAD;
|
|
uint blockInGroup = GI / MAX_USED_THREAD;
|
|
uint blockID = g_start_block_id + groupID.x * BLOCK_IN_GROUP + blockInGroup;
|
|
uint threadBase = blockInGroup * MAX_USED_THREAD;
|
|
uint threadInBlock = GI - threadBase;
|
|
|
|
uint block_y = blockID / g_num_block_x;
|
|
uint block_x = blockID - block_y * g_num_block_x;
|
|
uint base_x = block_x * BLOCK_SIZE_X;
|
|
uint base_y = block_y * BLOCK_SIZE_Y;
|
|
|
|
if (threadInBlock < 16)
|
|
{
|
|
shared_temp[GI].pixel = clamp(uint4(g_Input.Load( uint3( base_x + threadInBlock % 4, base_y + threadInBlock / 4, 0 ) ) * 255), 0, 255);
|
|
}
|
|
GroupMemoryBarrierWithGroupSync();
|
|
|
|
shared_temp[GI].error = 0xFFFFFFFF;
|
|
|
|
uint4 pixel_r;
|
|
uint2x4 endPoint[2]; // endPoint[0..1 for subset id][0..1 for low and high in the subset]
|
|
uint2x4 endPointBackup[2];
|
|
uint color_index;
|
|
if (threadInBlock < 64)
|
|
{
|
|
uint partition = threadInBlock;
|
|
|
|
endPoint[0][0] = MAX_UINT;
|
|
endPoint[0][1] = MIN_UINT;
|
|
endPoint[1][0] = MAX_UINT;
|
|
endPoint[1][1] = MIN_UINT;
|
|
uint bits = candidateSectionBit[partition];
|
|
for ( uint i = 0; i < 16; i ++ )
|
|
{
|
|
uint4 pixel = shared_temp[threadBase + i].pixel;
|
|
if ( (( bits >> i ) & 0x01) == 1 )
|
|
{
|
|
endPoint[1][0] = min( endPoint[1][0], pixel );
|
|
endPoint[1][1] = max( endPoint[1][1], pixel );
|
|
}
|
|
else
|
|
{
|
|
endPoint[0][0] = min( endPoint[0][0], pixel );
|
|
endPoint[0][1] = max( endPoint[0][1], pixel );
|
|
}
|
|
}
|
|
|
|
endPointBackup[0] = endPoint[0];
|
|
endPointBackup[1] = endPoint[1];
|
|
|
|
uint max_p;
|
|
if (1 == g_mode_id)
|
|
{
|
|
// in mode 1, there is only one p bit per subset
|
|
max_p = 2;
|
|
}
|
|
else
|
|
{
|
|
// in mode 3 7, there are two p bits per subset, one for each end point
|
|
max_p = 4;
|
|
}
|
|
|
|
uint final_p[2] = { 0, 0 };
|
|
uint error[2] = { MAX_UINT, MAX_UINT };
|
|
for ( uint p = 0; p < max_p; p ++ )
|
|
{
|
|
endPoint[0] = endPointBackup[0];
|
|
endPoint[1] = endPointBackup[1];
|
|
|
|
for ( i = 0; i < 2; i ++ ) // loop through 2 subsets
|
|
{
|
|
if (g_mode_id == 1)
|
|
{
|
|
compress_endpoints1( endPoint[i], p );
|
|
}
|
|
else if (g_mode_id == 3)
|
|
{
|
|
compress_endpoints3( endPoint[i], uint2(p, p >> 1) & 1 );
|
|
}
|
|
else if (g_mode_id == 7)
|
|
{
|
|
compress_endpoints7( endPoint[i], uint2(p, p >> 1) & 1 );
|
|
}
|
|
}
|
|
|
|
int4 span[2];
|
|
span[0] = endPoint[0][1] - endPoint[0][0];
|
|
span[1] = endPoint[1][1] - endPoint[1][0];
|
|
|
|
if (g_mode_id != 7)
|
|
{
|
|
span[0].w = span[1].w = 0;
|
|
}
|
|
|
|
int span_norm_sqr[2];
|
|
span_norm_sqr[0] = dot( span[0], span[0] );
|
|
span_norm_sqr[1] = dot( span[1], span[1] );
|
|
|
|
// TODO: again, this shouldn't be necessary here in error calculation
|
|
int dotProduct = dot( span[0], shared_temp[threadBase + 0].pixel - endPoint[0][0] );
|
|
if ( span_norm_sqr[0] > 0 && dotProduct > 0 && uint( dotProduct * 63.49999 ) > uint( 32 * span_norm_sqr[0] ) )
|
|
{
|
|
span[0] = -span[0];
|
|
swap(endPoint[0][0], endPoint[0][1]);
|
|
}
|
|
dotProduct = dot( span[1], shared_temp[threadBase + candidateFixUpIndex1D[partition].x].pixel - endPoint[1][0] );
|
|
if ( span_norm_sqr[1] > 0 && dotProduct > 0 && uint( dotProduct * 63.49999 ) > uint( 32 * span_norm_sqr[1] ) )
|
|
{
|
|
span[1] = -span[1];
|
|
swap(endPoint[1][0], endPoint[1][1]);
|
|
}
|
|
|
|
uint step_selector;
|
|
if (g_mode_id != 1)
|
|
{
|
|
step_selector = 2; // mode 3 7 have 2 bit index
|
|
}
|
|
else
|
|
{
|
|
step_selector = 1; // mode 1 has 3 bit index
|
|
}
|
|
|
|
uint p_error[2] = { 0, 0 };
|
|
for ( i = 0; i < 16; i ++ )
|
|
{
|
|
uint subset_index = (bits >> i) & 0x01;
|
|
|
|
if (subset_index == 1)
|
|
{
|
|
dotProduct = dot( span[1], shared_temp[threadBase + i].pixel - endPoint[1][0] );
|
|
color_index = (span_norm_sqr[1] <= 0 || dotProduct <= 0) ? 0
|
|
: ((dotProduct < span_norm_sqr[1]) ? aStep[step_selector][uint(dotProduct * 63.49999 / span_norm_sqr[1])] : aStep[step_selector][63]);
|
|
}
|
|
else
|
|
{
|
|
dotProduct = dot( span[0], shared_temp[threadBase + i].pixel - endPoint[0][0] );
|
|
color_index = (span_norm_sqr[0] <= 0 || dotProduct <= 0) ? 0
|
|
: ((dotProduct < span_norm_sqr[0]) ? aStep[step_selector][uint(dotProduct * 63.49999 / span_norm_sqr[0])] : aStep[step_selector][63]);
|
|
}
|
|
|
|
pixel_r = ((64 - aWeight[step_selector][color_index]) * endPoint[subset_index][0]
|
|
+ aWeight[step_selector][color_index] * endPoint[subset_index][1] + 32) >> 6;
|
|
if (g_mode_id != 7)
|
|
{
|
|
pixel_r.a = 255;
|
|
}
|
|
|
|
uint4 pixel = shared_temp[threadBase + i].pixel;
|
|
Ensure_A_Is_Larger( pixel_r, pixel );
|
|
pixel_r -= pixel;
|
|
uint pixel_error = ComputeError(pixel_r, pixel_r);
|
|
if ( subset_index == 1 )
|
|
p_error[1] += pixel_error;
|
|
else
|
|
p_error[0] += pixel_error;
|
|
}
|
|
|
|
for ( i = 0; i < 2; i++ )
|
|
{
|
|
if (p_error[i] < error[i])
|
|
{
|
|
error[i] = p_error[i];
|
|
final_p[i] = p;
|
|
}
|
|
}
|
|
}
|
|
|
|
shared_temp[GI].error = error[0] + error[1];
|
|
shared_temp[GI].mode = g_mode_id;
|
|
shared_temp[GI].partition = partition;
|
|
|
|
// mode 1 3 7 don't have rotation, we use rotation for p bits
|
|
if ( g_mode_id == 1 )
|
|
shared_temp[GI].rotation = (final_p[1] << 1) | final_p[0];
|
|
else
|
|
shared_temp[GI].rotation = (final_p[1] << 2) | final_p[0];
|
|
}
|
|
GroupMemoryBarrierWithGroupSync();
|
|
|
|
if (threadInBlock < 32)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 32].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 32].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 32].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 32].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 32].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 16)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 16].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 16].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 16].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 16].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 16].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 8)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 8].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 8].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 8].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 8].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 8].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 4)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 4].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 4].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 4].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 4].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 4].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 2)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 2].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 2].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 2].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 2].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 2].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 1)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 1].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 1].error;
|
|
shared_temp[GI].mode = shared_temp[GI + 1].mode;
|
|
shared_temp[GI].partition = shared_temp[GI + 1].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 1].rotation;
|
|
}
|
|
|
|
if (g_InBuff[blockID].x > shared_temp[GI].error)
|
|
{
|
|
g_OutBuff[blockID] = uint4(shared_temp[GI].error, shared_temp[GI].mode, shared_temp[GI].partition, shared_temp[GI].rotation); // mode 1 3 7 don't have rotation, we use rotation for p bits
|
|
}
|
|
else
|
|
{
|
|
g_OutBuff[blockID] = g_InBuff[blockID];
|
|
}
|
|
}
|
|
}
|
|
|
|
[numthreads( THREAD_GROUP_SIZE, 1, 1 )]
|
|
void TryMode02CS( uint GI : SV_GroupIndex, uint3 groupID : SV_GroupID ) // mode 0 2 have 3 subsets per block
|
|
{
|
|
const uint MAX_USED_THREAD = 64;
|
|
uint BLOCK_IN_GROUP = THREAD_GROUP_SIZE / MAX_USED_THREAD;
|
|
uint blockInGroup = GI / MAX_USED_THREAD;
|
|
uint blockID = g_start_block_id + groupID.x * BLOCK_IN_GROUP + blockInGroup;
|
|
uint threadBase = blockInGroup * MAX_USED_THREAD;
|
|
uint threadInBlock = GI - threadBase;
|
|
|
|
uint block_y = blockID / g_num_block_x;
|
|
uint block_x = blockID - block_y * g_num_block_x;
|
|
uint base_x = block_x * BLOCK_SIZE_X;
|
|
uint base_y = block_y * BLOCK_SIZE_Y;
|
|
|
|
if (threadInBlock < 16)
|
|
{
|
|
shared_temp[GI].pixel = clamp(uint4(g_Input.Load( uint3( base_x + threadInBlock % 4, base_y + threadInBlock / 4, 0 ) ) * 255), 0, 255);
|
|
}
|
|
GroupMemoryBarrierWithGroupSync();
|
|
|
|
shared_temp[GI].error = 0xFFFFFFFF;
|
|
|
|
uint num_partitions;
|
|
if (0 == g_mode_id)
|
|
{
|
|
num_partitions = 16;
|
|
}
|
|
else
|
|
{
|
|
num_partitions = 64;
|
|
}
|
|
|
|
uint4 pixel_r;
|
|
uint2x4 endPoint[3]; // endPoint[0..1 for subset id][0..1 for low and high in the subset]
|
|
uint2x4 endPointBackup[3];
|
|
uint color_index[16];
|
|
if (threadInBlock < num_partitions)
|
|
{
|
|
uint partition = threadInBlock + 64;
|
|
|
|
endPoint[0][0] = MAX_UINT;
|
|
endPoint[0][1] = MIN_UINT;
|
|
endPoint[1][0] = MAX_UINT;
|
|
endPoint[1][1] = MIN_UINT;
|
|
endPoint[2][0] = MAX_UINT;
|
|
endPoint[2][1] = MIN_UINT;
|
|
uint bits2 = candidateSectionBit2[partition - 64];
|
|
for ( uint i = 0; i < 16; i ++ )
|
|
{
|
|
uint4 pixel = shared_temp[threadBase + i].pixel;
|
|
uint subset_index = ( bits2 >> ( i * 2 ) ) & 0x03;
|
|
if ( subset_index == 2 )
|
|
{
|
|
endPoint[2][0] = min( endPoint[2][0], pixel );
|
|
endPoint[2][1] = max( endPoint[2][1], pixel );
|
|
}
|
|
else if ( subset_index == 1 )
|
|
{
|
|
endPoint[1][0] = min( endPoint[1][0], pixel );
|
|
endPoint[1][1] = max( endPoint[1][1], pixel );
|
|
}
|
|
else
|
|
{
|
|
endPoint[0][0] = min( endPoint[0][0], pixel );
|
|
endPoint[0][1] = max( endPoint[0][1], pixel );
|
|
}
|
|
}
|
|
|
|
endPointBackup[0] = endPoint[0];
|
|
endPointBackup[1] = endPoint[1];
|
|
endPointBackup[2] = endPoint[2];
|
|
|
|
uint max_p;
|
|
if (0 == g_mode_id)
|
|
{
|
|
max_p = 4;
|
|
}
|
|
else
|
|
{
|
|
max_p = 1;
|
|
}
|
|
|
|
uint final_p[3] = { 0, 0, 0 };
|
|
uint error[3] = { MAX_UINT, MAX_UINT, MAX_UINT };
|
|
for ( uint p = 0; p < max_p; p ++ )
|
|
{
|
|
endPoint[0] = endPointBackup[0];
|
|
endPoint[1] = endPointBackup[1];
|
|
endPoint[2] = endPointBackup[2];
|
|
|
|
for ( i = 0; i < 3; i ++ )
|
|
{
|
|
if (0 == g_mode_id)
|
|
{
|
|
compress_endpoints0( endPoint[i], uint2(p, p >> 1) & 1 );
|
|
}
|
|
else
|
|
{
|
|
compress_endpoints2( endPoint[i] );
|
|
}
|
|
}
|
|
|
|
uint step_selector = 1 + (2 == g_mode_id);
|
|
|
|
int4 span[3];
|
|
span[0] = endPoint[0][1] - endPoint[0][0];
|
|
span[1] = endPoint[1][1] - endPoint[1][0];
|
|
span[2] = endPoint[2][1] - endPoint[2][0];
|
|
span[0].w = span[1].w = span[2].w = 0;
|
|
int span_norm_sqr[3];
|
|
span_norm_sqr[0] = dot( span[0], span[0] );
|
|
span_norm_sqr[1] = dot( span[1], span[1] );
|
|
span_norm_sqr[2] = dot( span[2], span[2] );
|
|
|
|
// TODO: again, this shouldn't be necessary here in error calculation
|
|
uint ci[3] = { 0, candidateFixUpIndex1D[partition].x, candidateFixUpIndex1D[partition].y };
|
|
for (i = 0; i < 3; i ++)
|
|
{
|
|
int dotProduct = dot( span[i], shared_temp[threadBase + ci[i]].pixel - endPoint[i][0] );
|
|
if ( span_norm_sqr[i] > 0 && dotProduct > 0 && uint( dotProduct * 63.49999 ) > uint( 32 * span_norm_sqr[i] ) )
|
|
{
|
|
span[i] = -span[i];
|
|
swap(endPoint[i][0], endPoint[i][1]);
|
|
}
|
|
}
|
|
|
|
uint p_error[3] = { 0, 0, 0 };
|
|
for ( i = 0; i < 16; i ++ )
|
|
{
|
|
uint subset_index = ( bits2 >> ( i * 2 ) ) & 0x03;
|
|
if ( subset_index == 2 )
|
|
{
|
|
int dotProduct = dot( span[2], shared_temp[threadBase + i].pixel - endPoint[2][0] );
|
|
color_index[i] = ( span_norm_sqr[2] <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr[2] ) ? aStep[step_selector][ uint( dotProduct * 63.49999 / span_norm_sqr[2] ) ] : aStep[step_selector][63] );
|
|
}
|
|
else if ( subset_index == 1 )
|
|
{
|
|
int dotProduct = dot( span[1], shared_temp[threadBase + i].pixel - endPoint[1][0] );
|
|
color_index[i] = ( span_norm_sqr[1] <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr[1] ) ? aStep[step_selector][ uint( dotProduct * 63.49999 / span_norm_sqr[1] ) ] : aStep[step_selector][63] );
|
|
}
|
|
else
|
|
{
|
|
int dotProduct = dot( span[0], shared_temp[threadBase + i].pixel - endPoint[0][0] );
|
|
color_index[i] = ( span_norm_sqr[0] <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr[0] ) ? aStep[step_selector][ uint( dotProduct * 63.49999 / span_norm_sqr[0] ) ] : aStep[step_selector][63] );
|
|
}
|
|
|
|
pixel_r = ( ( 64 - aWeight[step_selector][color_index[i]] ) * endPoint[subset_index][0]
|
|
+ aWeight[step_selector][color_index[i]] * endPoint[subset_index][1] + 32 ) >> 6;
|
|
pixel_r.a = 255;
|
|
|
|
uint4 pixel = shared_temp[threadBase + i].pixel;
|
|
Ensure_A_Is_Larger( pixel_r, pixel );
|
|
pixel_r -= pixel;
|
|
|
|
uint pixel_error = ComputeError(pixel_r, pixel_r);
|
|
|
|
if ( subset_index == 2 )
|
|
p_error[2] += pixel_error;
|
|
else if ( subset_index == 1 )
|
|
p_error[1] += pixel_error;
|
|
else
|
|
p_error[0] += pixel_error;
|
|
}
|
|
|
|
for ( i = 0; i < 3; i++ )
|
|
{
|
|
if (p_error[i] < error[i])
|
|
{
|
|
error[i] = p_error[i];
|
|
final_p[i] = p; // Borrow rotation for p
|
|
}
|
|
}
|
|
}
|
|
|
|
shared_temp[GI].error = error[0] + error[1] + error[2];
|
|
shared_temp[GI].partition = partition;
|
|
shared_temp[GI].rotation = (final_p[2] << 4) | (final_p[1] << 2) | final_p[0];
|
|
}
|
|
GroupMemoryBarrierWithGroupSync();
|
|
|
|
if (threadInBlock < 32)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 32].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 32].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 32].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 32].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 16)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 16].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 16].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 16].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 16].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 8)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 8].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 8].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 8].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 8].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 4)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 4].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 4].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 4].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 4].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 2)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 2].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 2].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 2].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 2].rotation;
|
|
}
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 1)
|
|
{
|
|
if ( shared_temp[GI].error > shared_temp[GI + 1].error )
|
|
{
|
|
shared_temp[GI].error = shared_temp[GI + 1].error;
|
|
shared_temp[GI].partition = shared_temp[GI + 1].partition;
|
|
shared_temp[GI].rotation = shared_temp[GI + 1].rotation;
|
|
}
|
|
|
|
if (g_InBuff[blockID].x > shared_temp[GI].error)
|
|
{
|
|
g_OutBuff[blockID] = uint4(shared_temp[GI].error, g_mode_id, shared_temp[GI].partition, shared_temp[GI].rotation); // rotation is actually p bit for mode 0. for mode 2, rotation is always 0
|
|
}
|
|
else
|
|
{
|
|
g_OutBuff[blockID] = g_InBuff[blockID];
|
|
}
|
|
}
|
|
}
|
|
|
|
[numthreads( THREAD_GROUP_SIZE, 1, 1 )]
|
|
void EncodeBlocks(uint GI : SV_GroupIndex, uint3 groupID : SV_GroupID)
|
|
{
|
|
const uint MAX_USED_THREAD = 16;
|
|
uint BLOCK_IN_GROUP = THREAD_GROUP_SIZE / MAX_USED_THREAD;
|
|
uint blockInGroup = GI / MAX_USED_THREAD;
|
|
uint blockID = g_start_block_id + groupID.x * BLOCK_IN_GROUP + blockInGroup;
|
|
uint threadBase = blockInGroup * MAX_USED_THREAD;
|
|
uint threadInBlock = GI - threadBase;
|
|
|
|
#ifndef REF_DEVICE
|
|
if (blockID >= g_num_total_blocks)
|
|
{
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
uint block_y = blockID / g_num_block_x;
|
|
uint block_x = blockID - block_y * g_num_block_x;
|
|
uint base_x = block_x * BLOCK_SIZE_X;
|
|
uint base_y = block_y * BLOCK_SIZE_Y;
|
|
|
|
uint mode = g_InBuff[blockID].y & 0x7FFFFFFF;
|
|
uint partition = g_InBuff[blockID].z;
|
|
uint index_selector = (g_InBuff[blockID].y >> 31) & 1;
|
|
uint rotation = g_InBuff[blockID].w;
|
|
|
|
if (threadInBlock < 16)
|
|
{
|
|
uint4 pixel = clamp(uint4(g_Input.Load( uint3( base_x + threadInBlock % 4, base_y + threadInBlock / 4, 0 ) ) * 255), 0, 255);
|
|
|
|
if ((4 == mode) || (5 == mode))
|
|
{
|
|
if (1 == rotation)
|
|
{
|
|
pixel.ra = pixel.ar;
|
|
}
|
|
else if (2 == rotation)
|
|
{
|
|
pixel.ga = pixel.ag;
|
|
}
|
|
else if (3 == rotation)
|
|
{
|
|
pixel.ba = pixel.ab;
|
|
}
|
|
}
|
|
|
|
shared_temp[GI].pixel = pixel;
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
uint bits = candidateSectionBit[partition];
|
|
uint bits2 = candidateSectionBit2[partition - 64];
|
|
|
|
uint2x4 ep;
|
|
ep[0] = MAX_UINT;
|
|
ep[1] = MIN_UINT;
|
|
uint2x4 ep_quantized;
|
|
[unroll]
|
|
for (int ii = 2; ii >= 0; -- ii)
|
|
{
|
|
if (threadInBlock < 16)
|
|
{
|
|
uint2x4 ep;
|
|
ep[0] = MAX_UINT;
|
|
ep[1] = MIN_UINT;
|
|
|
|
uint4 pixel = shared_temp[GI].pixel;
|
|
|
|
uint subset_index = ( bits >> threadInBlock ) & 0x01;
|
|
uint subset_index2 = ( bits2 >> ( threadInBlock * 2 ) ) & 0x03;
|
|
if (0 == ii)
|
|
{
|
|
if ((0 == mode) || (2 == mode))
|
|
{
|
|
if (0 == subset_index2)
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
else if ((1 == mode) || (3 == mode) || (7 == mode))
|
|
{
|
|
if (0 == subset_index)
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
else if ((4 == mode) || (5 == mode) || (6 == mode))
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
else if (1 == ii)
|
|
{
|
|
if ((0 == mode) || (2 == mode))
|
|
{
|
|
if (1 == subset_index2)
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
else if ((1 == mode) || (3 == mode) || (7 == mode))
|
|
{
|
|
if (1 == subset_index)
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((0 == mode) || (2 == mode))
|
|
{
|
|
if (2 == subset_index2)
|
|
{
|
|
ep[0] = ep[1] = pixel;
|
|
}
|
|
}
|
|
}
|
|
|
|
shared_temp[GI].endPoint_low = ep[0];
|
|
shared_temp[GI].endPoint_high = ep[1];
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
if (threadInBlock < 8)
|
|
{
|
|
shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 8].endPoint_low);
|
|
shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 8].endPoint_high);
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 4)
|
|
{
|
|
shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 4].endPoint_low);
|
|
shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 4].endPoint_high);
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 2)
|
|
{
|
|
shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 2].endPoint_low);
|
|
shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 2].endPoint_high);
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
if (threadInBlock < 1)
|
|
{
|
|
shared_temp[GI].endPoint_low = min(shared_temp[GI].endPoint_low, shared_temp[GI + 1].endPoint_low);
|
|
shared_temp[GI].endPoint_high = max(shared_temp[GI].endPoint_high, shared_temp[GI + 1].endPoint_high);
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
if (ii == (int)threadInBlock)
|
|
{
|
|
ep[0] = shared_temp[threadBase].endPoint_low;
|
|
ep[1] = shared_temp[threadBase].endPoint_high;
|
|
}
|
|
}
|
|
|
|
if (threadInBlock < 3)
|
|
{
|
|
uint2 P;
|
|
if (1 == mode)
|
|
{
|
|
P = (rotation >> threadInBlock) & 1;
|
|
}
|
|
else
|
|
{
|
|
P = uint2(rotation >> (threadInBlock * 2 + 0), rotation >> (threadInBlock * 2 + 1)) & 1;
|
|
}
|
|
|
|
if (0 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints0( ep, P );
|
|
}
|
|
else if (1 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints1( ep, P );
|
|
}
|
|
else if (2 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints2( ep );
|
|
}
|
|
else if (3 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints3( ep, P );
|
|
}
|
|
else if (4 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints4( ep );
|
|
}
|
|
else if (5 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints5( ep );
|
|
}
|
|
else if (6 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints6( ep, P );
|
|
}
|
|
else //if (7 == mode)
|
|
{
|
|
ep_quantized = compress_endpoints7( ep, P );
|
|
}
|
|
|
|
int4 span = ep[1] - ep[0];
|
|
if (mode < 4)
|
|
{
|
|
span.w = 0;
|
|
}
|
|
|
|
if ((4 == mode) || (5 == mode))
|
|
{
|
|
if (0 == threadInBlock)
|
|
{
|
|
int2 span_norm_sqr = uint2( dot( span.rgb, span.rgb ), span.a * span.a );
|
|
int2 dotProduct = int2( dot( span.rgb, shared_temp[threadBase + 0].pixel.rgb - ep[0].rgb ), span.a * ( shared_temp[threadBase + 0].pixel.a - ep[0].a ) );
|
|
if ( span_norm_sqr.x > 0 && dotProduct.x > 0 && uint( dotProduct.x * 63.49999 ) > uint( 32 * span_norm_sqr.x ) )
|
|
{
|
|
swap(ep[0].rgb, ep[1].rgb);
|
|
swap(ep_quantized[0].rgb, ep_quantized[1].rgb);
|
|
}
|
|
if ( span_norm_sqr.y > 0 && dotProduct.y > 0 && uint( dotProduct.y * 63.49999 ) > uint( 32 * span_norm_sqr.y ) )
|
|
{
|
|
swap(ep[0].a, ep[1].a);
|
|
swap(ep_quantized[0].a, ep_quantized[1].a);
|
|
}
|
|
}
|
|
}
|
|
else //if ((0 == mode) || (2 == mode) || (1 == mode) || (3 == mode) || (7 == mode) || (6 == mode))
|
|
{
|
|
int p;
|
|
if (0 == threadInBlock)
|
|
{
|
|
p = 0;
|
|
}
|
|
else if (1 == threadInBlock)
|
|
{
|
|
p = candidateFixUpIndex1D[partition].x;
|
|
}
|
|
else //if (2 == threadInBlock)
|
|
{
|
|
p = candidateFixUpIndex1D[partition].y;
|
|
}
|
|
|
|
int span_norm_sqr = dot( span, span );
|
|
int dotProduct = dot( span, shared_temp[threadBase + p].pixel - ep[0] );
|
|
if ( span_norm_sqr > 0 && dotProduct > 0 && uint( dotProduct * 63.49999 ) > uint( 32 * span_norm_sqr ) )
|
|
{
|
|
swap(ep[0], ep[1]);
|
|
swap(ep_quantized[0], ep_quantized[1]);
|
|
}
|
|
}
|
|
|
|
shared_temp[GI].endPoint_low = ep[0];
|
|
shared_temp[GI].endPoint_high = ep[1];
|
|
shared_temp[GI].endPoint_low_quantized = ep_quantized[0];
|
|
shared_temp[GI].endPoint_high_quantized = ep_quantized[1];
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
if (threadInBlock < 16)
|
|
{
|
|
uint color_index = 0;
|
|
uint alpha_index = 0;
|
|
|
|
uint2x4 ep;
|
|
|
|
uint2 indexPrec;
|
|
if ((0 == mode) || (1 == mode))
|
|
{
|
|
indexPrec = 1;
|
|
}
|
|
else if (6 == mode)
|
|
{
|
|
indexPrec = 0;
|
|
}
|
|
else if (4 == mode)
|
|
{
|
|
if (0 == index_selector)
|
|
{
|
|
indexPrec = uint2(2, 1);
|
|
}
|
|
else
|
|
{
|
|
indexPrec = uint2(1, 2);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
indexPrec = 2;
|
|
}
|
|
|
|
int subset_index;
|
|
if ((0 == mode) || (2 == mode))
|
|
{
|
|
subset_index = (bits2 >> (threadInBlock * 2)) & 0x03;
|
|
}
|
|
else if ((1 == mode) || (3 == mode) || (7 == mode))
|
|
{
|
|
subset_index = (bits >> threadInBlock) & 0x01;
|
|
}
|
|
else
|
|
{
|
|
subset_index = 0;
|
|
}
|
|
|
|
ep[0] = shared_temp[threadBase + subset_index].endPoint_low;
|
|
ep[1] = shared_temp[threadBase + subset_index].endPoint_high;
|
|
|
|
int4 span = ep[1] - ep[0];
|
|
if (mode < 4)
|
|
{
|
|
span.w = 0;
|
|
}
|
|
|
|
if ((4 == mode) || (5 == mode))
|
|
{
|
|
int2 span_norm_sqr;
|
|
span_norm_sqr.x = dot( span.rgb, span.rgb );
|
|
span_norm_sqr.y = span.a * span.a;
|
|
|
|
int dotProduct = dot( span.rgb, shared_temp[threadBase + threadInBlock].pixel.rgb - ep[0].rgb );
|
|
color_index = ( span_norm_sqr.x <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr.x ) ? aStep[indexPrec.x][ uint( dotProduct * 63.49999 / span_norm_sqr.x ) ] : aStep[indexPrec.x][63] );
|
|
dotProduct = dot( span.a, shared_temp[threadBase + threadInBlock].pixel.a - ep[0].a );
|
|
alpha_index = ( span_norm_sqr.y <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr.y ) ? aStep[indexPrec.y][ uint( dotProduct * 63.49999 / span_norm_sqr.y ) ] : aStep[indexPrec.y][63] );
|
|
|
|
if (index_selector)
|
|
{
|
|
swap(color_index, alpha_index);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int span_norm_sqr = dot( span, span );
|
|
|
|
int dotProduct = dot( span, shared_temp[threadBase + threadInBlock].pixel - ep[0] );
|
|
color_index = ( span_norm_sqr <= 0 || dotProduct <= 0 ) ? 0
|
|
: ( ( dotProduct < span_norm_sqr ) ? aStep[indexPrec.x][ uint( dotProduct * 63.49999 / span_norm_sqr ) ] : aStep[indexPrec.x][63] );
|
|
}
|
|
|
|
shared_temp[GI].error = color_index;
|
|
shared_temp[GI].mode = alpha_index;
|
|
}
|
|
#ifdef REF_DEVICE
|
|
GroupMemoryBarrierWithGroupSync();
|
|
#endif
|
|
|
|
if (0 == threadInBlock)
|
|
{
|
|
uint4 block;
|
|
if (0 == mode)
|
|
{
|
|
block_package0( block, partition, threadBase );
|
|
}
|
|
else if (1 == mode)
|
|
{
|
|
block_package1( block, partition, threadBase );
|
|
}
|
|
else if (2 == mode)
|
|
{
|
|
block_package2( block, partition, threadBase );
|
|
}
|
|
else if (3 == mode)
|
|
{
|
|
block_package3( block, partition, threadBase );
|
|
}
|
|
else if (4 == mode)
|
|
{
|
|
block_package4( block, rotation, index_selector, threadBase );
|
|
}
|
|
else if (5 == mode)
|
|
{
|
|
block_package5( block, rotation, threadBase );
|
|
}
|
|
else if (6 == mode)
|
|
{
|
|
block_package6( block, threadBase );
|
|
}
|
|
else //if (7 == mode)
|
|
{
|
|
block_package7( block, partition, threadBase );
|
|
}
|
|
|
|
g_OutBuff[blockID] = block;
|
|
}
|
|
}
|
|
|
|
//uint4 truncate_and_round( uint4 color, uint bits)
|
|
//{
|
|
// uint precisionMask = ((1 << bits) - 1) << (8 - bits);
|
|
// uint precisionHalf = (1 << (7-bits));
|
|
//
|
|
// uint4 truncated = color & precisionMask;
|
|
// uint4 rounded = min(255, color + precisionHalf) & precisionMask;
|
|
//
|
|
// uint4 truncated_bak = truncated = truncated | (truncated >> bits);
|
|
// uint4 rounded_bak = rounded = rounded | (rounded >> bits);
|
|
//
|
|
// uint4 color_bak = color;
|
|
//
|
|
// Ensure_A_Is_Larger( rounded, color );
|
|
// Ensure_A_Is_Larger( truncated, color_bak );
|
|
//
|
|
// if (dot(rounded - color, rounded - color) <
|
|
// dot(truncated - color_bak, truncated - color_bak))
|
|
// {
|
|
// return rounded_bak;
|
|
// }
|
|
// else
|
|
// {
|
|
// return truncated_bak;
|
|
// }
|
|
//}
|
|
|
|
uint4 quantize( uint4 color, uint uPrec )
|
|
{
|
|
return (((color << 8) + color) * ((1 << uPrec) - 1) + 32768) >> 16;
|
|
}
|
|
|
|
uint4 unquantize( uint4 color, uint uPrec )
|
|
{
|
|
color = color << (8 - uPrec);
|
|
return color | (color >> uPrec);
|
|
}
|
|
|
|
uint2x4 compress_endpoints0( inout uint2x4 endPoint, uint2 P )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = quantize(endPoint[j].rgbb, 5).rgb & 0xFFFFFFFE;
|
|
quantized[j].rgb |= P[j];
|
|
quantized[j].a = 0xFF;
|
|
|
|
endPoint[j].rgb = unquantize(quantized[j].rgbb, 5).rgb;
|
|
endPoint[j].a = 0xFF;
|
|
|
|
quantized[j] <<= 3;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints1( inout uint2x4 endPoint, uint2 P )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = quantize(endPoint[j].rgbb, 7).rgb & 0xFFFFFFFE;
|
|
quantized[j].rgb |= P[j];
|
|
quantized[j].a = 0xFF;
|
|
|
|
endPoint[j].rgb = unquantize(quantized[j].rgbb, 7).rgb;
|
|
endPoint[j].a = 0xFF;
|
|
|
|
quantized[j] <<= 1;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints2( inout uint2x4 endPoint )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = quantize(endPoint[j].rgbb, 5).rgb;
|
|
quantized[j].a = 0xFF;
|
|
|
|
endPoint[j].rgb = unquantize(quantized[j].rgbb, 5).rgb;
|
|
endPoint[j].a = 0xFF;
|
|
|
|
quantized[j] <<= 3;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints3( inout uint2x4 endPoint, uint2 P )
|
|
{
|
|
uint2x4 quantized;
|
|
for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = endPoint[j].rgb & 0xFFFFFFFE;
|
|
quantized[j].rgb |= P[j];
|
|
quantized[j].a = 0xFF;
|
|
|
|
endPoint[j].rgb = quantized[j].rgb;
|
|
endPoint[j].a = 0xFF;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints4( inout uint2x4 endPoint )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = quantize(endPoint[j].rgbb, 5).rgb;
|
|
quantized[j].a = quantize(endPoint[j].a, 6).r;
|
|
|
|
endPoint[j].rgb = unquantize(quantized[j].rgbb, 5).rgb;
|
|
endPoint[j].a = unquantize(quantized[j].a, 6).r;
|
|
|
|
quantized[j].rgb <<= 3;
|
|
quantized[j].a <<= 2;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints5( inout uint2x4 endPoint )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j].rgb = quantize(endPoint[j].rgbb, 7).rgb;
|
|
quantized[j].a = endPoint[j].a;
|
|
|
|
endPoint[j].rgb = unquantize(quantized[j].rgbb, 7).rgb;
|
|
// endPoint[j].a Alpha is full precision
|
|
|
|
quantized[j].rgb <<= 1;
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints6( inout uint2x4 endPoint, uint2 P )
|
|
{
|
|
uint2x4 quantized;
|
|
for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j] = endPoint[j] & 0xFFFFFFFE;
|
|
quantized[j] |= P[j];
|
|
|
|
endPoint[j] = quantized[j];
|
|
}
|
|
return quantized;
|
|
}
|
|
uint2x4 compress_endpoints7( inout uint2x4 endPoint, uint2 P )
|
|
{
|
|
uint2x4 quantized;
|
|
[unroll] for ( uint j = 0; j < 2; j ++ )
|
|
{
|
|
quantized[j] = quantize(endPoint[j], 6) & 0xFFFFFFFE;
|
|
quantized[j] |= P[j];
|
|
|
|
endPoint[j] = unquantize(quantized[j], 6);
|
|
}
|
|
return quantized << 2;
|
|
}
|
|
|
|
#define get_end_point_l(subset) shared_temp[threadBase + subset].endPoint_low_quantized
|
|
#define get_end_point_h(subset) shared_temp[threadBase + subset].endPoint_high_quantized
|
|
#define get_color_index(index) shared_temp[threadBase + index].error
|
|
#define get_alpha_index(index) shared_temp[threadBase + index].mode
|
|
|
|
void block_package0( out uint4 block, uint partition, uint threadBase )
|
|
{
|
|
block.x = 0x01 | ( (partition - 64) << 1 )
|
|
| ( ( get_end_point_l(0).r & 0xF0 ) << 1 ) | ( ( get_end_point_h(0).r & 0xF0 ) << 5 )
|
|
| ( ( get_end_point_l(1).r & 0xF0 ) << 9 ) | ( ( get_end_point_h(1).r & 0xF0 ) << 13 )
|
|
| ( ( get_end_point_l(2).r & 0xF0 ) << 17 ) | ( ( get_end_point_h(2).r & 0xF0 ) << 21 )
|
|
| ( ( get_end_point_l(0).g & 0xF0 ) << 25 );
|
|
block.y = ( ( get_end_point_l(0).g & 0xF0 ) >> 7 ) | ( ( get_end_point_h(0).g & 0xF0 ) >> 3 )
|
|
| ( ( get_end_point_l(1).g & 0xF0 ) << 1 ) | ( ( get_end_point_h(1).g & 0xF0 ) << 5 )
|
|
| ( ( get_end_point_l(2).g & 0xF0 ) << 9 ) | ( ( get_end_point_h(2).g & 0xF0 ) << 13 )
|
|
| ( ( get_end_point_l(0).b & 0xF0 ) << 17 ) | ( ( get_end_point_h(0).b & 0xF0 ) << 21 )
|
|
| ( ( get_end_point_l(1).b & 0xF0 ) << 25 );
|
|
block.z = ( ( get_end_point_l(1).b & 0xF0 ) >> 7 ) | ( ( get_end_point_h(1).b & 0xF0 ) >> 3 )
|
|
| ( ( get_end_point_l(2).b & 0xF0 ) << 1 ) | ( ( get_end_point_h(2).b & 0xF0 ) << 5 )
|
|
| ( ( get_end_point_l(0).r & 0x08 ) << 10 ) | ( ( get_end_point_h(0).r & 0x08 ) << 11 )
|
|
| ( ( get_end_point_l(1).r & 0x08 ) << 12 ) | ( ( get_end_point_h(1).r & 0x08 ) << 13 )
|
|
| ( ( get_end_point_l(2).r & 0x08 ) << 14 ) | ( ( get_end_point_h(2).r & 0x08 ) << 15 )
|
|
| ( get_color_index(0) << 19 );
|
|
block.w = 0;
|
|
uint i = 1;
|
|
for ( ; i <= min( candidateFixUpIndex1DOrdered[partition][0], 4 ); i ++ )
|
|
{
|
|
block.z |= get_color_index(i) << ( i * 3 + 18 );
|
|
}
|
|
if ( candidateFixUpIndex1DOrdered[partition][0] < 4 ) //i = 4
|
|
{
|
|
block.z |= get_color_index(4) << 29;
|
|
i += 1;
|
|
}
|
|
else //i = 5
|
|
{
|
|
block.w |= ( get_color_index(4) & 0x04 ) >> 2;
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][0]; i ++ )
|
|
block.w |= get_color_index(i) << ( i * 3 - 14 );
|
|
}
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][1]; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 3 - 15 );
|
|
}
|
|
for ( ; i < 16; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 3 - 16 );
|
|
}
|
|
}
|
|
void block_package1( out uint4 block, uint partition, uint threadBase )
|
|
{
|
|
block.x = 0x02 | ( partition << 2 )
|
|
| ( ( get_end_point_l(0).r & 0xFC ) << 6 ) | ( ( get_end_point_h(0).r & 0xFC ) << 12 )
|
|
| ( ( get_end_point_l(1).r & 0xFC ) << 18 ) | ( ( get_end_point_h(1).r & 0xFC ) << 24 );
|
|
block.y = ( ( get_end_point_l(0).g & 0xFC ) >> 2 ) | ( ( get_end_point_h(0).g & 0xFC ) << 4 )
|
|
| ( ( get_end_point_l(1).g & 0xFC ) << 10 ) | ( ( get_end_point_h(1).g & 0xFC ) << 16 )
|
|
| ( ( get_end_point_l(0).b & 0xFC ) << 22 ) | ( ( get_end_point_h(0).b & 0xFC ) << 28 );
|
|
block.z = ( ( get_end_point_h(0).b & 0xFC ) >> 4 ) | ( ( get_end_point_l(1).b & 0xFC ) << 2 )
|
|
| ( ( get_end_point_h(1).b & 0xFC ) << 8 )
|
|
| ( ( get_end_point_l(0).r & 0x02 ) << 15 ) | ( ( get_end_point_l(1).r & 0x02 ) << 16 )
|
|
| ( get_color_index(0) << 18 );
|
|
if ( candidateFixUpIndex1DOrdered[partition][0] == 15 )
|
|
{
|
|
block.w = (get_color_index(15) << 30) | (get_color_index(14) << 27) | (get_color_index(13) << 24) | (get_color_index(12) << 21) | (get_color_index(11) << 18) | (get_color_index(10) << 15)
|
|
| (get_color_index(9) << 12) | (get_color_index(8) << 9) | (get_color_index(7) << 6) | (get_color_index(6) << 3) | get_color_index(5);
|
|
block.z |= (get_color_index(4) << 29) | (get_color_index(3) << 26) | (get_color_index(2) << 23) | (get_color_index(1) << 20) | (get_color_index(0) << 18);
|
|
}
|
|
else if ( candidateFixUpIndex1DOrdered[partition][0] == 2 )
|
|
{
|
|
block.w = (get_color_index(15) << 29) | (get_color_index(14) << 26) | (get_color_index(13) << 23) | (get_color_index(12) << 20) | (get_color_index(11) << 17) | (get_color_index(10) << 14)
|
|
| (get_color_index(9) << 11) | (get_color_index(8) << 8) | (get_color_index(7) << 5) | (get_color_index(6) << 2) | (get_color_index(5) >> 1);
|
|
block.z |= (get_color_index(5) << 31) | (get_color_index(4) << 28) | (get_color_index(3) << 25) | (get_color_index(2) << 23) | (get_color_index(1) << 20) | (get_color_index(0) << 18);
|
|
}
|
|
else if ( candidateFixUpIndex1DOrdered[partition][0] == 8 )
|
|
{
|
|
block.w = (get_color_index(15) << 29) | (get_color_index(14) << 26) | (get_color_index(13) << 23) | (get_color_index(12) << 20) | (get_color_index(11) << 17) | (get_color_index(10) << 14)
|
|
| (get_color_index(9) << 11) | (get_color_index(8) << 9) | (get_color_index(7) << 6) | (get_color_index(6) << 3) | get_color_index(5);
|
|
block.z |= (get_color_index(4) << 29) | (get_color_index(3) << 26) | (get_color_index(2) << 23) | (get_color_index(1) << 20) | (get_color_index(0) << 18);
|
|
}
|
|
else //candidateFixUpIndex1DOrdered[partition] == 6
|
|
{
|
|
block.w = (get_color_index(15) << 29) | (get_color_index(14) << 26) | (get_color_index(13) << 23) | (get_color_index(12) << 20) | (get_color_index(11) << 17) | (get_color_index(10) << 14)
|
|
| (get_color_index(9) << 11) | (get_color_index(8) << 8) | (get_color_index(7) << 5) | (get_color_index(6) << 3) | get_color_index(5);
|
|
block.z |= (get_color_index(4) << 29) | (get_color_index(3) << 26) | (get_color_index(2) << 23) | (get_color_index(1) << 20) | (get_color_index(0) << 18);
|
|
}
|
|
}
|
|
void block_package2( out uint4 block, uint partition, uint threadBase )
|
|
{
|
|
block.x = 0x04 | ( (partition - 64) << 3 )
|
|
| ( ( get_end_point_l(0).r & 0xF8 ) << 6 ) | ( ( get_end_point_h(0).r & 0xF8 ) << 11 )
|
|
| ( ( get_end_point_l(1).r & 0xF8 ) << 16 ) | ( ( get_end_point_h(1).r & 0xF8 ) << 21 )
|
|
| ( ( get_end_point_l(2).r & 0xF8 ) << 26 );
|
|
block.y = ( ( get_end_point_l(2).r & 0xF8 ) >> 6 ) | ( ( get_end_point_h(2).r & 0xF8 ) >> 1 )
|
|
| ( ( get_end_point_l(0).g & 0xF8 ) << 4 ) | ( ( get_end_point_h(0).g & 0xF8 ) << 9 )
|
|
| ( ( get_end_point_l(1).g & 0xF8 ) << 14 ) | ( ( get_end_point_h(1).g & 0xF8 ) << 19 )
|
|
| ( ( get_end_point_l(2).g & 0xF8 ) << 24 );
|
|
block.z = ( ( get_end_point_h(2).g & 0xF8 ) >> 3 ) | ( ( get_end_point_l(0).b & 0xF8 ) << 2 )
|
|
| ( ( get_end_point_h(0).b & 0xF8 ) << 7 ) | ( ( get_end_point_l(1).b & 0xF8 ) << 12 )
|
|
| ( ( get_end_point_h(1).b & 0xF8 ) << 17 ) | ( ( get_end_point_l(2).b & 0xF8 ) << 22 )
|
|
| ( ( get_end_point_h(2).b & 0xF8 ) << 27 );
|
|
block.w = ( ( get_end_point_h(2).b & 0xF8 ) >> 5 )
|
|
| ( get_color_index(0) << 3 );
|
|
uint i = 1;
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][0]; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 + 2 );
|
|
}
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][1]; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 + 1 );
|
|
}
|
|
for ( ; i < 16; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 );
|
|
}
|
|
}
|
|
void block_package3( out uint4 block, uint partition, uint threadBase )
|
|
{
|
|
block.x = 0x08 | ( partition << 4 )
|
|
| ( ( get_end_point_l(0).r & 0xFE ) << 9 ) | ( ( get_end_point_h(0).r & 0xFE ) << 16 )
|
|
| ( ( get_end_point_l(1).r & 0xFE ) << 23 ) | ( ( get_end_point_h(1).r & 0xFE ) << 30 );
|
|
block.y = ( ( get_end_point_h(1).r & 0xFE ) >> 2 ) | ( ( get_end_point_l(0).g & 0xFE ) << 5 )
|
|
| ( ( get_end_point_h(0).g & 0xFE ) << 12 ) | ( ( get_end_point_l(1).g & 0xFE ) << 19 )
|
|
| ( ( get_end_point_h(1).g & 0xFE ) << 26 );
|
|
block.z = ( ( get_end_point_h(1).g & 0xFE ) >> 6 ) | ( ( get_end_point_l(0).b & 0xFE ) << 1 )
|
|
| ( ( get_end_point_h(0).b & 0xFE ) << 8 ) | ( ( get_end_point_l(1).b & 0xFE ) << 15 )
|
|
| ( ( get_end_point_h(1).b & 0xFE ) << 22 )
|
|
| ( ( get_end_point_l(0).r & 0x01 ) << 30 ) | ( ( get_end_point_h(0).r & 0x01 ) << 31 );
|
|
block.w = ( ( get_end_point_l(1).r & 0x01 ) << 0 ) | ( ( get_end_point_h(1).r & 0x01 ) << 1 )
|
|
| ( get_color_index(0) << 2 );
|
|
uint i = 1;
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][0]; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 + 1 );
|
|
}
|
|
for ( ; i < 16; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 );
|
|
}
|
|
}
|
|
void block_package4( out uint4 block, uint rotation, uint index_selector, uint threadBase )
|
|
{
|
|
block.x = 0x10 | ( (rotation & 3) << 5 ) | ( (index_selector & 1) << 7 )
|
|
| ( ( get_end_point_l(0).r & 0xF8 ) << 5 ) | ( ( get_end_point_h(0).r & 0xF8 ) << 10 )
|
|
| ( ( get_end_point_l(0).g & 0xF8 ) << 15 ) | ( ( get_end_point_h(0).g & 0xF8 ) << 20 )
|
|
| ( ( get_end_point_l(0).b & 0xF8 ) << 25 );
|
|
|
|
block.y = ( ( get_end_point_l(0).b & 0xF8 ) >> 7 ) | ( ( get_end_point_h(0).b & 0xF8 ) >> 2 )
|
|
| ( ( get_end_point_l(0).a & 0xFC ) << 4 ) | ( ( get_end_point_h(0).a & 0xFC ) << 10 )
|
|
| ( (get_color_index(0) & 1) << 18 ) | ( get_color_index(1) << 19 ) | ( get_color_index(2) << 21 ) | ( get_color_index(3) << 23 )
|
|
| ( get_color_index(4) << 25 ) | ( get_color_index(5) << 27 ) | ( get_color_index(6) << 29 ) | ( get_color_index(7) << 31 );
|
|
|
|
block.z = ( get_color_index(7) >> 1 ) | ( get_color_index(8) << 1 ) | ( get_color_index(9) << 3 ) | ( get_color_index(10)<< 5 )
|
|
| ( get_color_index(11)<< 7 ) | ( get_color_index(12)<< 9 ) | ( get_color_index(13)<< 11 ) | ( get_color_index(14)<< 13 )
|
|
| ( get_color_index(15)<< 15 ) | ( (get_alpha_index(0) & 3) << 17 ) | ( get_alpha_index(1) << 19 ) | ( get_alpha_index(2) << 22 )
|
|
| ( get_alpha_index(3) << 25 ) | ( get_alpha_index(4) << 28 ) | ( get_alpha_index(5) << 31 );
|
|
|
|
block.w = ( get_alpha_index(5) >> 1 ) | ( get_alpha_index(6) << 2 ) | ( get_alpha_index(7) << 5 ) | ( get_alpha_index(8) << 8 )
|
|
| ( get_alpha_index(9) << 11 ) | ( get_alpha_index(10)<< 14 ) | ( get_alpha_index(11)<< 17 ) | ( get_alpha_index(12)<< 20 )
|
|
| ( get_alpha_index(13)<< 23 ) | ( get_alpha_index(14)<< 26 ) | ( get_alpha_index(15)<< 29 );
|
|
}
|
|
void block_package5( out uint4 block, uint rotation, uint threadBase )
|
|
{
|
|
block.x = 0x20 | ( rotation << 6 )
|
|
| ( ( get_end_point_l(0).r & 0xFE ) << 7 ) | ( ( get_end_point_h(0).r & 0xFE ) << 14 )
|
|
| ( ( get_end_point_l(0).g & 0xFE ) << 21 ) | ( ( get_end_point_h(0).g & 0xFE ) << 28 );
|
|
block.y = ( ( get_end_point_h(0).g & 0xFE ) >> 4 ) | ( ( get_end_point_l(0).b & 0xFE ) << 3 )
|
|
| ( ( get_end_point_h(0).b & 0xFE ) << 10 ) | ( get_end_point_l(0).a << 18 ) | ( get_end_point_h(0).a << 26 );
|
|
block.z = ( get_end_point_h(0).a >> 6 )
|
|
| ( get_color_index(0) << 2 ) | ( get_color_index(1) << 3 ) | ( get_color_index(2) << 5 ) | ( get_color_index(3) << 7 )
|
|
| ( get_color_index(4) << 9 ) | ( get_color_index(5) << 11 ) | ( get_color_index(6) << 13 ) | ( get_color_index(7) << 15 )
|
|
| ( get_color_index(8) << 17 ) | ( get_color_index(9) << 19 ) | ( get_color_index(10)<< 21 ) | ( get_color_index(11)<< 23 )
|
|
| ( get_color_index(12)<< 25 ) | ( get_color_index(13)<< 27 ) | ( get_color_index(14)<< 29 ) | ( get_color_index(15)<< 31 );
|
|
block.w = ( get_color_index(15)>> 1 ) | ( get_alpha_index(0) << 1 ) | ( get_alpha_index(1) << 2 ) | ( get_alpha_index(2) << 4 )
|
|
| ( get_alpha_index(3) << 6 ) | ( get_alpha_index(4) << 8 ) | ( get_alpha_index(5) << 10 ) | ( get_alpha_index(6) << 12 )
|
|
| ( get_alpha_index(7) << 14 ) | ( get_alpha_index(8) << 16 ) | ( get_alpha_index(9) << 18 ) | ( get_alpha_index(10)<< 20 )
|
|
| ( get_alpha_index(11)<< 22 ) | ( get_alpha_index(12)<< 24 ) | ( get_alpha_index(13)<< 26 ) | ( get_alpha_index(14)<< 28 )
|
|
| ( get_alpha_index(15)<< 30 );
|
|
}
|
|
void block_package6( out uint4 block, uint threadBase )
|
|
{
|
|
block.x = 0x40
|
|
| ( ( get_end_point_l(0).r & 0xFE ) << 6 ) | ( ( get_end_point_h(0).r & 0xFE ) << 13 )
|
|
| ( ( get_end_point_l(0).g & 0xFE ) << 20 ) | ( ( get_end_point_h(0).g & 0xFE ) << 27 );
|
|
block.y = ( ( get_end_point_h(0).g & 0xFE ) >> 5 ) | ( ( get_end_point_l(0).b & 0xFE ) << 2 )
|
|
| ( ( get_end_point_h(0).b & 0xFE ) << 9 ) | ( ( get_end_point_l(0).a & 0xFE ) << 16 )
|
|
| ( ( get_end_point_h(0).a & 0xFE ) << 23 )
|
|
| ( get_end_point_l(0).r & 0x01 ) << 31;
|
|
block.z = ( get_end_point_h(0).r & 0x01 )
|
|
| ( get_color_index(0) << 1 ) | ( get_color_index(1) << 4 ) | ( get_color_index(2) << 8 ) | ( get_color_index(3) << 12 )
|
|
| ( get_color_index(4) << 16 ) | ( get_color_index(5) << 20 ) | ( get_color_index(6) << 24 ) | ( get_color_index(7) << 28 );
|
|
block.w = ( get_color_index(8) << 0 ) | ( get_color_index(9) << 4 ) | ( get_color_index(10)<< 8 ) | ( get_color_index(11)<< 12 )
|
|
| ( get_color_index(12)<< 16 ) | ( get_color_index(13)<< 20 ) | ( get_color_index(14)<< 24 ) | ( get_color_index(15)<< 28 );
|
|
}
|
|
void block_package7( out uint4 block, uint partition, uint threadBase )
|
|
{
|
|
block.x = 0x80 | ( partition << 8 )
|
|
| ( ( get_end_point_l(0).r & 0xF8 ) << 11 ) | ( ( get_end_point_h(0).r & 0xF8 ) << 16 )
|
|
| ( ( get_end_point_l(1).r & 0xF8 ) << 21 ) | ( ( get_end_point_h(1).r & 0xF8 ) << 26 );
|
|
block.y = ( ( get_end_point_h(1).r & 0xF8 ) >> 6 ) | ( ( get_end_point_l(0).g & 0xF8 ) >> 1 )
|
|
| ( ( get_end_point_h(0).g & 0xF8 ) << 4 ) | ( ( get_end_point_l(1).g & 0xF8 ) << 9 )
|
|
| ( ( get_end_point_h(1).g & 0xF8 ) << 14 ) | ( ( get_end_point_l(0).b & 0xF8 ) << 19 )
|
|
| ( ( get_end_point_h(0).b & 0xF8 ) << 24 );
|
|
block.z = ( ( get_end_point_l(1).b & 0xF8 ) >> 3 ) | ( ( get_end_point_h(1).b & 0xF8 ) << 2 )
|
|
| ( ( get_end_point_l(0).a & 0xF8 ) << 7 ) | ( ( get_end_point_h(0).a & 0xF8 ) << 12 )
|
|
| ( ( get_end_point_l(1).a & 0xF8 ) << 17 ) | ( ( get_end_point_h(1).a & 0xF8 ) << 22 )
|
|
| ( ( get_end_point_l(0).r & 0x04 ) << 28 ) | ( ( get_end_point_h(0).r & 0x04 ) << 29 );
|
|
block.w = ( ( get_end_point_l(1).r & 0x04 ) >> 2 ) | ( ( get_end_point_h(1).r & 0x04 ) >> 1 )
|
|
| ( get_color_index(0) << 2 );
|
|
uint i = 1;
|
|
for ( ; i <= candidateFixUpIndex1DOrdered[partition][0]; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 + 1 );
|
|
}
|
|
for ( ; i < 16; i ++ )
|
|
{
|
|
block.w |= get_color_index(i) << ( i * 2 );
|
|
}
|
|
} |