AJ Kelly
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/* RageSurface - holds a simple 2d graphic surface */
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#ifndef RAGE_SURFACE_H
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#define RAGE_SURFACE_H
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/* XXX remove? */
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struct RageSurfaceColor
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{
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uint8_t r, g, b, a;
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RageSurfaceColor() { }
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RageSurfaceColor( uint8_t r_, uint8_t g_, uint8_t b_, uint8_t a_ ):
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r(r_), g(g_), b(b_), a(a_) { }
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bool operator== ( const RageSurfaceColor &rhs ) const;
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};
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struct RageSurfacePalette
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{
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RageSurfaceColor colors[256];
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int32_t ncolors;
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/* Find the exact color; returns -1 if not found. */
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int32_t FindColor( const RageSurfaceColor &color ) const;
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int32_t FindClosestColor( const RageSurfaceColor &color ) const;
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};
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struct RageSurfaceFormat
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{
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RageSurfaceFormat();
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RageSurfaceFormat( const RageSurfaceFormat &cpy );
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~RageSurfaceFormat();
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int32_t BytesPerPixel;
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int32_t BitsPerPixel;
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uint32_t Mask[4];
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uint32_t Shift[4];
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uint8_t Loss[4];
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uint32_t &Rmask, &Gmask, &Bmask, &Amask; /* deprecated */
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uint32_t &Rshift, &Gshift, &Bshift, &Ashift; /* deprecated */
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RageSurfacePalette *palette;
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void GetRGB( uint32_t val, uint8_t *r, uint8_t *g, uint8_t *b ) const;
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/* Return the decoded value for the given color; the result can be compared to
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* decodepixel() results. If the image is paletted and the color isn't found,
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* val is undefined and false is returned. */
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bool MapRGBA( uint8_t r, uint8_t g, uint8_t b, uint8_t a, uint32_t &val ) const;
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/* MapRGBA, but also do a nearest-match on palette colors. */
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uint32_t MapNearestRGBA( uint8_t r, uint8_t g, uint8_t b, uint8_t a ) const;
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bool operator== ( const RageSurfaceFormat &rhs ) const;
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/* Like operator==, but ignores the palette (which is really a part of the
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* surface, not the format). */
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bool Equivalent( const RageSurfaceFormat &rhs ) const;
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};
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struct RageSurface
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{
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RageSurfaceFormat *format; /* compatibility only */
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RageSurfaceFormat fmt;
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uint8_t *pixels;
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bool pixels_owned;
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int32_t w, h, pitch;
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int32_t flags;
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RageSurface();
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RageSurface( const RageSurface &cpy );
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~RageSurface();
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};
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RageSurface *CreateSurface( int width, int height, int bpp, uint32_t Rmask, uint32_t Gmask, uint32_t Bmask, uint32_t Amask );
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RageSurface *CreateSurfaceFrom( int width, int height, int bpp, uint32_t Rmask, uint32_t Gmask, uint32_t Bmask, uint32_t Amask, uint8_t *pPixels, uint32_t pitch );
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#endif
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/*
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* (c) 2001-2004 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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