66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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//============================================================================
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//
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// Modulation data specifies weightings of colorA to colorB for each pixel
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//
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// For mode = 0
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// 00: 0/8
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// 01: 3/8
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// 10: 5/8
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// 11: 8/8
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//
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// For mode = 1
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// 00: 0/8
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// 01: 4/8
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// 10: 4/8 with alpha punchthrough
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// 11: 8/8
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//
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// For colorIsOpaque=0
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// 3 bits A
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// 4 bits R
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// 4 bits G
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// 3/4 bits B
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//
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// For colorIsOpaque=1
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// 5 bits R
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// 5 bits G
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// 4/5 bits B
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//
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//============================================================================
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#pragma once
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#include "ColorRgba.h"
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//============================================================================
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namespace Javelin
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{
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//============================================================================
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struct PvrTcPacket
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{
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unsigned int modulationData;
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unsigned usePunchthroughAlpha : 1;
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unsigned colorA : 14;
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unsigned colorAIsOpaque : 1;
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unsigned colorB : 15;
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unsigned colorBIsOpaque : 1;
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ColorRgb<int> GetColorRgbA() const;
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ColorRgb<int> GetColorRgbB() const;
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ColorRgba<int> GetColorRgbaA() const;
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ColorRgba<int> GetColorRgbaB() const;
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void SetColorA(const ColorRgb<unsigned char>& c);
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void SetColorB(const ColorRgb<unsigned char>& c);
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void SetColorA(const ColorRgba<unsigned char>& c);
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void SetColorB(const ColorRgba<unsigned char>& c);
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static const unsigned char BILINEAR_FACTORS[16][4];
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static const unsigned char WEIGHTS[8][4];
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};
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//============================================================================
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} // namespace Javelin
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//============================================================================
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