1 /* 2 ** v_pfx.h 3 ** 4 **--------------------------------------------------------------------------- 5 ** Copyright 1998-2006 Randy Heit 6 ** All rights reserved. 7 ** 8 ** Redistribution and use in source and binary forms, with or without 9 ** modification, are permitted provided that the following conditions 10 ** are met: 11 ** 12 ** 1. Redistributions of source code must retain the above copyright 13 ** notice, this list of conditions and the following disclaimer. 14 ** 2. Redistributions in binary form must reproduce the above copyright 15 ** notice, this list of conditions and the following disclaimer in the 16 ** documentation and/or other materials provided with the distribution. 17 ** 3. The name of the author may not be used to endorse or promote products 18 ** derived from this software without specific prior written permission. 19 ** 20 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 **--------------------------------------------------------------------------- 31 ** 32 */ 33 34 #ifndef __V_PFX_H__ 35 #define __V_PFX_H__ 36 37 // 38 // Pixel format conversion routines, for use with DFrameBuffer implementations 39 // 40 41 union PfxUnion 42 { 43 BYTE Pal8[256]; 44 WORD Pal16[256]; 45 DWORD Pal32[256]; 46 BYTE Pal24[256][4]; 47 }; 48 49 struct PfxState 50 { 51 union 52 { 53 struct 54 { 55 WORD Red; 56 WORD Green; 57 WORD Blue; 58 } Bits16; 59 struct 60 { 61 uint32 Red; 62 uint32 Green; 63 uint32 Blue; 64 } Bits32; 65 } Masks; 66 BYTE RedShift; 67 BYTE BlueShift; 68 BYTE GreenShift; 69 BITFIELD RedLeft:1; 70 BITFIELD BlueLeft:1; 71 BITFIELD GreenLeft:1; 72 73 void SetFormat (int bits, uint32 redMask, uint32 greenMask, uint32 blueMask); 74 void (*SetPalette) (const PalEntry *pal); 75 void (*Convert) (BYTE *src, int srcpitch, 76 void *dest, int destpitch, int destwidth, int destheight, 77 fixed_t xstep, fixed_t ystep, fixed_t xfrac, fixed_t yfrac); 78 }; 79 80 extern "C" 81 { 82 extern PfxUnion GPfxPal; 83 extern PfxState GPfx; 84 } 85 86 #endif //__V_PFX_H__ 87