Jason Felds
100 lines
3.9 KiB
C
100 lines
3.9 KiB
C
/* RageTextureID - An identifier for a texture and associated loading parameters. */
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#ifndef RAGE_TEXTURE_ID_H
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#define RAGE_TEXTURE_ID_H
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/* A unique texture is identified by a RageTextureID. (Loading the
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* same file with two different dither settings is considered two
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* different textures, for example.) See RageTexture.cpp for explanations
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* of these. */
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struct RageTextureID
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{
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RString filename;
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// Maximum size of the texture, per dimension.
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int iMaxSize;
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// Generate mipmaps for this texture
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bool bMipMaps;
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/* Maximum number of bits for alpha. In 16-bit modes, lowering
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* this gives more bits for color values. (0, 1 or 4) */
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int iAlphaBits;
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/* If this is greater than -1, then the image will be loaded as a luma/alpha
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* map, eg. I4A4. At most 8 bits per pixel will be used This only actually happens
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* when paletted textures are supported.
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*
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* If the sum of alpha and grayscale bits is <= 4, and the system supports 4-bit
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* palettes, then the image will be loaded with 4bpp.
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*
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* This may be set to 0, resulting in an alpha map with all pixels white. */
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int iGrayscaleBits;
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/* Preferred color depth of the image. (This is overridden for
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* paletted images and transparencies.) -1 for default. */
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int iColorDepth;
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// If true and color precision is being lost, dither. (slow)
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bool bDither;
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// If true, resize the image to fill the internal texture. (slow)
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bool bStretch;
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/* If true, enable HOT PINK color keying. (deprecated but needed for
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* banners) */
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bool bHotPinkColorKey; // #FF00FF
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// These hints will be used in addition to any in the filename.
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RString AdditionalTextureHints;
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bool operator< (const RageTextureID &rhs) const;
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bool operator== (const RageTextureID &rhs) const;
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/* Used by RageTextureManager. Order is important; see RageTextureManager.cpp.
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* Note that this property is not considered for ordering/equality. Loading
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* a texture with a different loading policy will reuse the same texture with
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* a different policy. */
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enum TexPolicy { TEX_VOLATILE, TEX_DEFAULT } Policy;
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void Init();
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RageTextureID(): filename(RString()), iMaxSize(0), bMipMaps(false),
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iAlphaBits(0), iGrayscaleBits(0), iColorDepth(0),
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bDither(false), bStretch(false), bHotPinkColorKey(false),
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AdditionalTextureHints(RString()), Policy(TEX_DEFAULT) { Init(); }
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RageTextureID( const RString &fn ): filename(RString()), iMaxSize(0),
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bMipMaps(false), iAlphaBits(0), iGrayscaleBits(0),
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iColorDepth(0), bDither(false), bStretch(false),
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bHotPinkColorKey(false), AdditionalTextureHints(RString()),
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Policy(TEX_DEFAULT) { Init(); SetFilename(fn); }
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void SetFilename( const RString &fn );
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};
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#endif
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/*
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* Copyright (c) 2003-2004 Chris Danford, Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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