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83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
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** v_pfx.h
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#ifndef __V_PFX_H__
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#define __V_PFX_H__
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//
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// Pixel format conversion routines, for use with DFrameBuffer implementations
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//
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union PfxUnion
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{
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uint8_t Pal8[256];
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uint16_t Pal16[256];
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uint32_t Pal32[256];
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uint8_t Pal24[256][4];
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};
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struct PfxState
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{
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union
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{
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struct
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{
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uint16_t Red;
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uint16_t Green;
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uint16_t Blue;
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} Bits16;
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struct
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{
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uint32_t Red;
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uint32_t Green;
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uint32_t Blue;
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} Bits32;
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} Masks;
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uint8_t RedShift;
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uint8_t BlueShift;
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uint8_t GreenShift;
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BITFIELD RedLeft:1;
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BITFIELD BlueLeft:1;
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BITFIELD GreenLeft:1;
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void SetFormat (int bits, uint32_t redMask, uint32_t greenMask, uint32_t blueMask);
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void (*SetPalette) (const PalEntry *pal);
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void (*Convert) (uint8_t *src, int srcpitch,
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void *dest, int destpitch, int destwidth, int destheight,
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fixed_t xstep, fixed_t ystep, fixed_t xfrac, fixed_t yfrac);
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};
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extern PfxUnion GPfxPal;
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extern PfxState GPfx;
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#endif //__V_PFX_H__
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