Jason Felds
92 lines
3.8 KiB
C++
92 lines
3.8 KiB
C++
/* Utility functions for RageSurfaces. */
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#ifndef RAGE_SURFACE_UTILS_H
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#define RAGE_SURFACE_UTILS_H
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struct RageSurfaceColor;
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struct RageSurfacePalette;
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struct RageSurfaceFormat;
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struct RageSurface;
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/** @brief Utility functions for the RageSurfaces. */
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namespace RageSurfaceUtils
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{
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uint32_t decodepixel( const uint8_t *p, int bpp );
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void encodepixel( uint8_t *p, int bpp, uint32_t pixel );
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void GetRawRGBAV( uint32_t pixel, const RageSurfaceFormat &fmt, uint8_t *v );
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void GetRawRGBAV( const uint8_t *p, const RageSurfaceFormat &fmt, uint8_t *v );
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void GetRGBAV( uint32_t pixel, const RageSurface *src, uint8_t *v );
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void GetRGBAV( const uint8_t *p, const RageSurface *src, uint8_t *v );
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uint32_t SetRawRGBAV( const RageSurfaceFormat *fmt, const uint8_t *v );
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void SetRawRGBAV( uint8_t *p, const RageSurface *src, const uint8_t *v );
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uint32_t SetRGBAV( const RageSurfaceFormat *fmt, const uint8_t *v );
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void SetRGBAV( uint8_t *p, const RageSurface *src, const uint8_t *v );
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/* Get the number of bits representing each color channel in fmt. */
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void GetBitsPerChannel( const RageSurfaceFormat *fmt, uint32_t bits[4] );
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void CopySurface( const RageSurface *src, RageSurface *dest );
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bool ConvertSurface( RageSurface *src, RageSurface *&dst,
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int width, int height, int bpp, uint32_t R, uint32_t G, uint32_t B, uint32_t A );
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void ConvertSurface( RageSurface *&image,
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int width, int height, int bpp, uint32_t R, uint32_t G, uint32_t B, uint32_t A );
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void FixHiddenAlpha( RageSurface *img );
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int FindSurfaceTraits( const RageSurface *img );
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/* The surface contains no transparent pixels and/or never uses its color
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* key, so it doesn't need any alpha bits at all. */
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enum { TRAIT_NO_TRANSPARENCY = 0x0001 }; /* 0alpha */
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/* The surface contains only transparent values of 0 or 1; no translucency.
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* It only needs one bit of alpha. */
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enum { TRAIT_BOOL_TRANSPARENCY = 0x0002 }; /* 1alpha */
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void BlitTransform( const RageSurface *src, RageSurface *dst,
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const float fCoords[8] /* TL, BR, BL, TR */ );
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void Blit( const RageSurface *src, RageSurface *dst, int width = -1, int height = -1 );
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void CorrectBorderPixels( RageSurface *img, int width, int height );
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bool SaveSurface( const RageSurface *img, RString file );
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RageSurface *LoadSurface( RString file );
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/* Quickly palettize to an gray/alpha texture. */
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RageSurface *PalettizeToGrayscale( const RageSurface *src_surf, int GrayBits, int AlphaBits );
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RageSurface *MakeDummySurface( int height, int width );
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void ApplyHotPinkColorKey( RageSurface *&img );
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void FlipVertically( RageSurface *img );
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};
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#endif
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/*
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* (c) 2001-2004 Glenn Maynard, Chris Danford
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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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