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https://github.com/love2d/love-android.git
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Martin Felis
189 lines
3.5 KiB
C
189 lines
3.5 KiB
C
//-----------------------------------------------------------------------------
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//
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// ImageLib Sources
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// Copyright (C) 2000-2008 by Denton Woods
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// Last modified: 09/26/2008
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//
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// Filename: src-IL/include/il_hdr.h
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//
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// Description: Reads a Microsoft HD Photo (.wdp)
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//
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//-----------------------------------------------------------------------------
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#ifndef WDP_H
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#define WDP_H
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#include "il_internal.h"
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//
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// Structures
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//
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typedef struct WDPHEAD
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{
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ILubyte Encoding[2];
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ILubyte UniqueID;
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ILubyte Version;
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ILuint Offset;
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} WDPHEAD;
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typedef struct WDPIFD
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{
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ILushort Tag;
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ILushort Type;
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ILuint Count;
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ILuint ValOff;
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ILuint NextOff;
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} WDPIFD;
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typedef struct WDPGUID
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{
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ILuint First;
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ILushort Second;
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ILushort Third;
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ILuint Fourth;
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ILuint Fifth;
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} WDPGUID;
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typedef struct WDPIMGHEAD
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{
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ILuint GDISignature[2];
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ILuint Codec;
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ILubyte Flags[2];
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ILubyte Format;
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ILuint Width, Height; // Can either be short or 32-bit int
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ILuint VertTiles, HorzTiles; // 12-bits each
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ILushort *TileWidth, *TileHeight; // 8 or 16-bits each
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ILubyte *TileStretch; // 8-bits each
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ILubyte ExtraPixels[3];
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} WDPIMGHEAD;
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typedef struct WDPIMGPLANE
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{
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ILubyte Flags1;
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ILubyte Color;
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ILubyte Bayer;
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ILubyte ShiftBits;
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ILubyte Mantissa;
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ILubyte Expbias;
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ILubyte Flags2;
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ILubyte NumChannels;
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} WDPIMGPLANE;
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typedef struct WDPDCQUANT
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{
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ILubyte ChMode;
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ILubyte DcQuant;
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ILubyte DcQuantY;
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ILubyte DcQuantUV;
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ILubyte DcQuantChan;
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} WDPDCQUANT;
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typedef struct WDPTILE
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{
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ILuint StartCode;
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ILubyte HashAndType;
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} WDPTILE;
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//
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// Image header defines
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//
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// Codec and sub-codec
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#define WDP_CODEC 0xF0
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#define WDP_SUBCODEC 0x0F
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// First set of flags
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#define WDP_TILING_FLAG 0x80
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#define WDP_BITSTREAM_FMT 0x40
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#define WDP_ORIENTATION 0x38
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#define WDP_INDEXTABLE 0x04
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#define WDP_OVERLAP 0x03
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// Second set of flags
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#define WDP_SHORT_HEADER 0x80
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#define WDP_LONG_WORD 0x40
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#define WDP_WINDOWING 0x20
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#define WDP_TRIM_FLEXBITS 0x10
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#define WDP_TILE_STRETCH 0x08
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#define WDP_ALPHACHANNEL 0x01
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// Format and bit-depth
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#define WDP_FORMAT 0xF0
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#define WDP_BITDEPTH 0x0F
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#define WDP_Y_ONLY 0x00
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#define WDP_YUV_420 0x01
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#define WDP_YUV_422 0x02
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#define WDP_YUV_444 0x03
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#define WDP_CMYK 0x04
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#define WDP_BAYER 0x05
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#define WDP_N_CHANNEL 0x06
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#define WDP_RGB 0x07
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#define WDP_RGBE 0x08
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// Bitdepth
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#define WDP_BD_1_WHITE 0x00
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#define WDP_BD_8 0x01
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#define WDP_BD_16 0x02
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#define WDP_BD_16S 0x03
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#define WDP_BD_16F 0x04
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#define WDP_BD_32 0x05
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#define WDP_BD_32S 0x06
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#define WDP_BD_32F 0x07
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#define WDP_BD_5 0x08
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#define WDP_BD_10 0x09
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#define WDP_BD_565 0x0A
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#define WDP_BD_1_BLACK 0x0F
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//
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// Image plane header defines
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//
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// First set of flags
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#define WDP_CLR_FMT 0xE0
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#define WDP_NO_SCALED 0x10
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#define WDP_BANDS_PRESENT 0x0F
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// Defines for n-channels
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#define WDP_NUM_CHANS 0xF0
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#define WDP_COLOR_INTERP 0x0F
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// Second set of flags
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#define WDP_DC_FRAME 0x80
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// Channel modes
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#define WDP_CH_UNIFORM 0x00
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#define WDP_CH_SEPARATE 0x01
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#define WDP_CH_INDEPENDENT 0x02
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// Tile types
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#define WDP_TILE_HASH 0xF8
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#define WDP_TILE_TYPE 0x03
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#define WDP_SPATIAL_TILE 0x00
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#define WDP_DC_TILE 0x01
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#define WDP_LOWPASS_TILE 0x02
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#define WDP_HIGHPASS_TILE 0x03
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#define WDP_FLEXBITS_TILE 0x04
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// Bands present
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#define WDP_SB_ALL 0x00
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#define WDP_SB_NO_FLEXBITS 0x01
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#define WDP_SB_NO_HIGHPASS 0x02
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#define WDP_SB_DC_ONLY 0x03
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#define WDP_SB_ISOLATED 0x04
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//
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// Internal functions
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//
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ILboolean iIsValidWdp();
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ILboolean iCheckWdp(WDPHEAD *Header);
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ILboolean iLoadWdpInternal();
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ILuint VLWESC();
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#endif//WDP_H
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