imagetools/CompressionOptions.cpp at main · carbonengine/imagetools · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
// Copyright © 2014 CCP ehf.

#include "StdAfx.h"
#include "CompressionOptions.h"

using namespace ImageIO;

CompressionOptions::CompressionOptions( IRoot* lockobj )
	:m_compressor( NVTT ),
	m_format( PIXEL_FORMAT_BC1_UNORM ),
	m_quality( nvtt::Quality_Production ),
	m_alphaForBc1( false ),
	m_generateMips( false ),
	m_useCuda( true ),
	m_redWeight( 1.0f ),
	m_greenWeight( 1.0f ),
	m_blueWeight( 1.0f ),
	m_alphaWeight( 1.0f )
{
}

BlueStdResult CompressionOptions::Create(
	Be::OptionalWithDefaultValue<PixelFormat, PIXEL_FORMAT_BC1_UNORM> format,
	Be::OptionalWithDefaultValue<nvtt::Quality, nvtt::Quality_Production> quality,
	Be::OptionalWithDefaultValue<bool, false> generateMips,
	Be::OptionalWithDefaultValue<bool, false> alphaForBc1 )
{
	auto result = SetFormat( format );
	if( !BeIsSuccess( result ) )
	{
		return result;
	}
	m_quality = quality;
	m_alphaForBc1 = alphaForBc1;
	m_generateMips = generateMips;
	return BLUE_STD_RESULT_OK;
}

PixelFormat CompressionOptions::GetFormat() const
{
	return m_format;
}

BlueStdResult CompressionOptions::SetFormat( PixelFormat format )
{
	if( !IsCompressedFormat( format ) )
	{
		return BlueStdResult( BLUE_STD_RESULT_VALUE_ERROR, "format needs to be a compressed format (imagetools.PIXEL_FORMAT.BC#_...)" );
	}
	m_format = format;
	return BLUE_STD_RESULT_OK;
}

CompressionOptions::Compressor CompressionOptions::GetCompressor() const
{
	return m_compressor;
}

void CompressionOptions::FillNvttOptions( nvtt::CompressionOptions& options )
{
	switch( m_format )
	{
	case PIXEL_FORMAT_BC1_TYPELESS:
	case PIXEL_FORMAT_BC1_UNORM:
	case PIXEL_FORMAT_BC1_UNORM_SRGB:
		options.setFormat( m_alphaForBc1 ? nvtt::Format_BC1a : nvtt::Format_BC1 );
		break;
	case PIXEL_FORMAT_BC2_TYPELESS:
	case PIXEL_FORMAT_BC2_UNORM:
	case PIXEL_FORMAT_BC2_UNORM_SRGB:
		options.setFormat( nvtt::Format_BC2 );
		break;
	case PIXEL_FORMAT_BC3_TYPELESS:
	case PIXEL_FORMAT_BC3_UNORM:
	case PIXEL_FORMAT_BC3_UNORM_SRGB:
		options.setFormat( nvtt::Format_BC3 );
		break;
	case PIXEL_FORMAT_BC4_TYPELESS:
	case PIXEL_FORMAT_BC4_UNORM:
	case PIXEL_FORMAT_BC4_SNORM:
		options.setFormat( nvtt::Format_BC4 );
		break;
	case PIXEL_FORMAT_BC5_TYPELESS:
	case PIXEL_FORMAT_BC5_UNORM:
	case PIXEL_FORMAT_BC5_SNORM:
		options.setFormat( nvtt::Format_BC5 );
		break;
	case PIXEL_FORMAT_BC6H_TYPELESS:
	case PIXEL_FORMAT_BC6H_UF16:
	case PIXEL_FORMAT_BC6H_SF16:
		options.setFormat( nvtt::Format_BC6 );
		break;
	case PIXEL_FORMAT_BC7_TYPELESS:
	case PIXEL_FORMAT_BC7_UNORM:
	case PIXEL_FORMAT_BC7_UNORM_SRGB:
		options.setFormat( nvtt::Format_BC7 );
		break;
    default:
        break;
	}
	options.setQuality( m_quality );
	options.setColorWeights( m_redWeight, m_greenWeight, m_blueWeight, m_alphaWeight );
}

#if WITH_COMPRESSONATOR

void CompressionOptions::FillCompressonatorOptions( CMP_CompressOptions& options )
{
	memset( &options, 0, sizeof( options ) );
	options.dwSize = sizeof( options );

	options.bUseGPUCompress = m_useCuda ? 1 : 0;
	switch( m_quality )
	{
	case nvtt::Quality_Fastest:
		options.fquality = 0.05f;
		break;
	case nvtt::Quality_Production:
		options.fquality = 0.75f;
		break;
	case nvtt::Quality_Highest:
		options.fquality = 1.0f;
		break;
	default:
		options.fquality = 0.5f;
	}
	if( m_alphaForBc1 )
	{
		options.bDXT1UseAlpha = 1;
	}
	if( m_redWeight != 1 || m_greenWeight != 1 || m_blueWeight != 1 )
	{
		options.bUseChannelWeighting = 1;
		options.fWeightingRed = m_redWeight;
		options.fWeightingGreen = m_greenWeight;
		options.fWeightingBlue = m_blueWeight;
	}
}

#endif

bool CompressionOptions::UseCuda() const
{
	return m_useCuda;
}

bool CompressionOptions::GetGenerateMipsMaps() const
{
	return m_generateMips;
}