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https://github.com/love2d/love-android.git
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Martin Felis
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
//-----------------------------------------------------------------------------
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//
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// ImageLib Sources
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// Copyright (C) 2000-2009 by Denton Woods
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// Last modified: 02/28/2009
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//
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// Filename: src-IL/include/il_vtf.h
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//
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// Description: Reads from and writes to a Valve Texture Format (.vtf) file.
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// These are used in Valve's Source games. VTF specs available
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// from http://developer.valvesoftware.com/wiki/VTF.
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//
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//-----------------------------------------------------------------------------
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#ifndef VTF_H
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#define VTF_H
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#include "il_internal.h"
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#ifdef _MSC_VER
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#pragma pack(push, vtf_struct, 1)
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#elif defined(MACOSX) || defined(__GNUC__)
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#pragma pack(1)
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#endif
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typedef struct VTFHEAD
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{
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ILubyte Signature[4]; // File signature ("VTF\0").
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ILuint Version[2]; // version[0].version[1] (currently 7.2).
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ILuint HeaderSize; // Size of the header struct (16 byte aligned; currently 80 bytes).
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ILushort Width; // Width of the largest mipmap in pixels. Must be a power of 2.
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ILushort Height; // Height of the largest mipmap in pixels. Must be a power of 2.
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ILuint Flags; // VTF flags.
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ILushort Frames; // Number of frames, if animated (1 for no animation).
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ILushort FirstFrame; // First frame in animation (0 based).
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ILubyte Padding0[4]; // reflectivity padding (16 byte alignment).
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ILfloat Reflectivity[3]; // reflectivity vector.
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ILubyte Padding1[4]; // reflectivity padding (8 byte packing).
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ILfloat BumpmapScale; // Bumpmap scale.
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ILuint HighResImageFormat; // High resolution image format.
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ILubyte MipmapCount; // Number of mipmaps.
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ILuint LowResImageFormat; // Low resolution image format (always DXT1).
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ILubyte LowResImageWidth; // Low resolution image width.
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ILubyte LowResImageHeight; // Low resolution image height.
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ILushort Depth; // Depth of the largest mipmap in pixels.
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// Must be a power of 2. Can be 0 or 1 for a 2D texture (v7.2 only).
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} IL_PACKSTRUCT VTFHEAD;
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#if defined(MACOSX) || defined(__GNUC__)
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#pragma pack()
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#elif _MSC_VER
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#pragma pack(pop, vtf_struct)
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#endif
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enum
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{
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IMAGE_FORMAT_NONE = -1,
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IMAGE_FORMAT_RGBA8888 = 0,
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IMAGE_FORMAT_ABGR8888,
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IMAGE_FORMAT_RGB888,
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IMAGE_FORMAT_BGR888,
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IMAGE_FORMAT_RGB565,
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IMAGE_FORMAT_I8,
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IMAGE_FORMAT_IA88,
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IMAGE_FORMAT_P8,
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IMAGE_FORMAT_A8,
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IMAGE_FORMAT_RGB888_BLUESCREEN,
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IMAGE_FORMAT_BGR888_BLUESCREEN,
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IMAGE_FORMAT_ARGB8888,
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IMAGE_FORMAT_BGRA8888,
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IMAGE_FORMAT_DXT1,
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IMAGE_FORMAT_DXT3,
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IMAGE_FORMAT_DXT5,
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IMAGE_FORMAT_BGRX8888,
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IMAGE_FORMAT_BGR565,
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IMAGE_FORMAT_BGRX5551,
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IMAGE_FORMAT_BGRA4444,
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IMAGE_FORMAT_DXT1_ONEBITALPHA,
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IMAGE_FORMAT_BGRA5551,
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IMAGE_FORMAT_UV88,
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IMAGE_FORMAT_UVWQ8888,
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IMAGE_FORMAT_RGBA16161616F,
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IMAGE_FORMAT_RGBA16161616,
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IMAGE_FORMAT_UVLX8888
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};
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enum
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{
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TEXTUREFLAGS_POINTSAMPLE = 0x00000001,
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TEXTUREFLAGS_TRILINEAR = 0x00000002,
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TEXTUREFLAGS_CLAMPS = 0x00000004,
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TEXTUREFLAGS_CLAMPT = 0x00000008,
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TEXTUREFLAGS_ANISOTROPIC = 0x00000010,
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TEXTUREFLAGS_HINT_DXT5 = 0x00000020,
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TEXTUREFLAGS_NOCOMPRESS = 0x00000040,
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TEXTUREFLAGS_NORMAL = 0x00000080,
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TEXTUREFLAGS_NOMIP = 0x00000100,
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TEXTUREFLAGS_NOLOD = 0x00000200,
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TEXTUREFLAGS_MINMIP = 0x00000400,
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TEXTUREFLAGS_PROCEDURAL = 0x00000800,
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TEXTUREFLAGS_ONEBITALPHA = 0x00001000,
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TEXTUREFLAGS_EIGHTBITALPHA = 0x00002000,
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TEXTUREFLAGS_ENVMAP = 0x00004000,
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TEXTUREFLAGS_RENDERTARGET = 0x00008000,
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TEXTUREFLAGS_DEPTHRENDERTARGET = 0x00010000,
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TEXTUREFLAGS_NODEBUGOVERRIDE = 0x00020000,
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TEXTUREFLAGS_SINGLECOPY = 0x00040000,
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TEXTUREFLAGS_ONEOVERMIPLEVELINALPHA = 0x00080000,
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TEXTUREFLAGS_PREMULTCOLORBYONEOVERMIPLEVEL = 0x00100000,
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TEXTUREFLAGS_NORMALTODUDV = 0x00200000,
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TEXTUREFLAGS_ALPHATESTMIPGENERATION = 0x00400000,
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TEXTUREFLAGS_NODEPTHBUFFER = 0x00800000,
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TEXTUREFLAGS_NICEFILTERED = 0x01000000,
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TEXTUREFLAGS_CLAMPU = 0x02000000
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};
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// Internal functions
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ILboolean iIsValidVtf(void);
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ILboolean iGetVtfHead(VTFHEAD *Header);
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ILboolean iCheckVtf(VTFHEAD *Header);
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ILboolean iLoadVtfInternal(void);
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ILboolean VtfInitFacesMipmaps(ILimage *BaseImage, ILuint NumFaces, VTFHEAD *Header);
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ILboolean VtfInitMipmaps(ILimage *BaseImage, VTFHEAD *Header);
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ILboolean VtfReadData(void);
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ILboolean VtfDecompressDXT1(ILimage *Image);
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ILboolean VtfDecompressDXT5(ILimage *Image);
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ILboolean iSaveVtfInternal(void);
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#endif//VTF_H
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