RageTextureID.h

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#ifndef RAGE_TEXTURE_ID_H
#define RAGE_TEXTURE_ID_H

/* A unique texture is identified by a RageTextureID.  (Loading the
 * same file with two different dither settings is considered two
 * different textures, for example.)  See RageTexture.cpp for explanations
 * of these. */
struct RageTextureID
{
        CString filename;
        
        /* Maximum size of the texture, per dimension. */
        int iMaxSize;

        /* Generate mipmaps for this texture */
        bool bMipMaps;

        /* Maximum number of bits for alpha.  In 16-bit modes, lowering
         * this gives more bits for color values. (0, 1 or 4) */
        int iAlphaBits;

        /* If this is greater than -1, then the image will be loaded as a luma/alpha
         * map, eg. I4A4.  At most 8 bits per pixel will be used  This only actually happens
         * when paletted textures are supported.
         *
         * If the sum of alpha and grayscale bits is <= 4, and the system supports 4-bit
         * palettes, then the image will be loaded with 4bpp.
         *
         * This may be set to 0, resulting in an alpha map with all pixels white. */
        int iGrayscaleBits;
        
        /* Preferred color depth of the image.  (This is overridden for
         * paletted images and transparencies.)  -1 for default. */
        int iColorDepth;
        
        /* If true and color precision is being lost, dither. (slow) */
        bool bDither;
        
        /* If true, resize the image to fill the internal texture. (slow) */
        bool bStretch;
        
        /* If true, enable HOT PINK color keying. (deprecated but needed for
         * banners) */
        bool bHotPinkColorKey; /* #FF00FF */
        
        /* These hints will be used in addition to any in the filename. */
        CString AdditionalTextureHints;

        bool operator< (const RageTextureID &rhs) const;
        bool operator== (const RageTextureID &rhs) const;

        /* Used by RageTextureManager.  Order is important; see RageTextureManager.cpp.
         * Note that this property is not considered for ordering/equality.  Loading
         * a texture with a different loading policy will reuse the same texture with
         * a different policy. */
        enum TexPolicy { TEX_PERMANENT, TEX_CACHED, TEX_VOLATILE, TEX_DEFAULT } Policy;

        void Init();

        RageTextureID() { Init(); }
        RageTextureID( const CString &fn ) { Init(); SetFilename(fn); }
        void SetFilename( const CString &fn );
};

#endif

/*
 * Copyright (c) 2003-2004 Chris Danford, Glenn Maynard
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, and/or sell copies of the Software, and to permit persons to
 * whom the Software is furnished to do so, provided that the above
 * copyright notice(s) and this permission notice appear in all copies of
 * the Software and that both the above copyright notice(s) and this
 * permission notice appear in supporting documentation.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
 * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
 * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
 * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

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