611 lines
23 KiB
C
611 lines
23 KiB
C
/*
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*
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* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* 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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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#ifndef _FBPICT_H_
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#define _FBPICT_H_
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#include "renderedge.h"
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#if defined(__GNUC__)
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#define INLINE __inline__
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#else
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#define INLINE
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#endif
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#define FbIntMult(a,b,t) ( (t) = (a) * (b) + 0x80, ( ( ( (t)>>8 ) + (t) )>>8 ) )
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#define FbIntDiv(a,b) (((CARD16) (a) * 255) / (b))
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#define FbGet8(v,i) ((CARD16) (CARD8) ((v) >> i))
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/*
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* There are two ways of handling alpha -- either as a single unified value or
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* a separate value for each component, hence each macro must have two
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* versions. The unified alpha version has a 'U' at the end of the name,
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* the component version has a 'C'. Similarly, functions which deal with
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* this difference will have two versions using the same convention.
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*/
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#define FbOverU(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),(a),(t)) + FbGet8(x,i),\
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(CARD32) ((CARD8) ((t) | (0 - ((t) >> 8)))) << (i))
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#define FbOverC(x,y,i,a,t) ((t) = FbIntMult(FbGet8(y,i),FbGet8(a,i),(t)) + FbGet8(x,i),\
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(CARD32) ((CARD8) ((t) | (0 - ((t) >> 8)))) << (i))
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#define FbInU(x,i,a,t) ((CARD32) FbIntMult(FbGet8(x,i),(a),(t)) << (i))
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#define FbInC(x,i,a,t) ((CARD32) FbIntMult(FbGet8(x,i),FbGet8(a,i),(t)) << (i))
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#define FbGen(x,y,i,ax,ay,t,u,v) ((t) = (FbIntMult(FbGet8(y,i),ay,(u)) + \
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FbIntMult(FbGet8(x,i),ax,(v))),\
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(CARD32) ((CARD8) ((t) | \
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(0 - ((t) >> 8)))) << (i))
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#define FbAdd(x,y,i,t) ((t) = FbGet8(x,i) + FbGet8(y,i), \
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(CARD32) ((CARD8) ((t) | (0 - ((t) >> 8)))) << (i))
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#define Alpha(x) ((x) >> 24)
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#define Red(x) (((x) >> 16) & 0xff)
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#define Green(x) (((x) >> 8) & 0xff)
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#define Blue(x) ((x) & 0xff)
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/**
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* Returns TRUE if the fbComposeGetSolid can be used to get a single solid
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* color representing every source sampling location of the picture.
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*/
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static INLINE Bool
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fbCanGetSolid(PicturePtr pict)
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{
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if (pict->pDrawable == NULL ||
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pict->pDrawable->width != 1 || pict->pDrawable->height != 1) {
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return FALSE;
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}
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if (pict->repeat != RepeatNormal)
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return FALSE;
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switch (pict->format) {
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case PICT_a8r8g8b8:
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case PICT_x8r8g8b8:
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case PICT_a8b8g8r8:
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case PICT_x8b8g8r8:
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case PICT_r8g8b8:
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case PICT_b8g8r8:
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case PICT_r5g6b5:
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case PICT_b5g6r5:
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return TRUE;
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default:
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return FALSE;
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}
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}
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#define fbComposeGetSolid(pict, bits, fmt) { \
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FbBits *__bits__; \
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FbStride __stride__; \
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int __bpp__; \
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int __xoff__ _X_UNUSED,__yoff__ _X_UNUSED; \
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\
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fbGetDrawable((pict)->pDrawable,__bits__,__stride__,__bpp__,__xoff__,__yoff__); \
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switch (__bpp__) { \
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case 32: \
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(bits) = *(CARD32 *) __bits__; \
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break; \
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case 24: \
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(bits) = Fetch24 ((CARD8 *) __bits__); \
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break; \
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case 16: \
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(bits) = *(CARD16 *) __bits__; \
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(bits) = cvt0565to8888(bits); \
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break; \
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default: \
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return; \
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} \
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/* If necessary, convert RGB <--> BGR. */ \
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if (PICT_FORMAT_TYPE((pict)->format) != PICT_FORMAT_TYPE(fmt)) \
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{ \
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(bits) = (((bits) & 0xff000000) | \
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(((bits) & 0x00ff0000) >> 16) | \
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(((bits) & 0x0000ff00) >> 0) | \
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(((bits) & 0x000000ff) << 16)); \
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} \
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/* manage missing src alpha */ \
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if ((pict)->pFormat->direct.alphaMask == 0) \
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(bits) |= 0xff000000; \
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}
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#define fbComposeGetStart(pict,x,y,type,stride,line,mul) {\
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FbBits *__bits__; \
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FbStride __stride__; \
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int __bpp__; \
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int __xoff__,__yoff__; \
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\
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fbGetDrawable((pict)->pDrawable,__bits__,__stride__,__bpp__,__xoff__,__yoff__); \
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(stride) = __stride__ * sizeof (FbBits) / sizeof (type); \
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(line) = ((type *) __bits__) + (stride) * ((y) + __yoff__) + (mul) * ((x) + __xoff__); \
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}
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#define cvt8888to0565(s) ((((s) >> 3) & 0x001f) | \
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(((s) >> 5) & 0x07e0) | \
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(((s) >> 8) & 0xf800))
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#define cvt0565to8888(s) (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) | \
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((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) | \
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((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)))
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#if IMAGE_BYTE_ORDER == MSBFirst
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#define Fetch24(a) ((unsigned long) (a) & 1 ? \
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((*(a) << 16) | *((CARD16 *) ((a)+1))) : \
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((*((CARD16 *) (a)) << 8) | *((a)+2)))
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#define Store24(a,v) ((unsigned long) (a) & 1 ? \
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((*(a) = (CARD8) ((v) >> 16)), \
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(*((CARD16 *) ((a)+1)) = (CARD16) (v))) : \
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((*((CARD16 *) (a)) = (CARD16) ((v) >> 8)), \
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(*((a)+2) = (CARD8) (v))))
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#else
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#define Fetch24(a) ((unsigned long) (a) & 1 ? \
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((*(a)) | (*((CARD16 *) ((a)+1)) << 8)) : \
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((*((CARD16 *) (a))) | (*((a)+2) << 16)))
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#define Store24(a,v) ((unsigned long) (a) & 1 ? \
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((*(a) = (CARD8) (v)), \
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(*((CARD16 *) ((a)+1)) = (CARD16) ((v) >> 8))) : \
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((*((CARD16 *) (a)) = (CARD16) (v)),\
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(*((a)+2) = (CARD8) ((v) >> 16))))
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#endif
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/*
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The methods below use some tricks to be able to do two color
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components at the same time.
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*/
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/*
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x_c = (x_c * a) / 255
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*/
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#define FbByteMul(x, a) do { \
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CARD32 t = ((x & 0xff00ff) * a) + 0x800080; \
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t = (t + ((t >> 8) & 0xff00ff)) >> 8; \
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t &= 0xff00ff; \
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\
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x = (((x >> 8) & 0xff00ff) * a) + 0x800080; \
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x = (x + ((x >> 8) & 0xff00ff)); \
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x &= 0xff00ff00; \
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x += t; \
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} while (0)
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/*
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x_c = (x_c * a) / 255 + y
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*/
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#define FbByteMulAdd(x, a, y) do { \
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CARD32 t = ((x & 0xff00ff) * a) + 0x800080; \
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t = (t + ((t >> 8) & 0xff00ff)) >> 8; \
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t &= 0xff00ff; \
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t += y & 0xff00ff; \
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t |= 0x1000100 - ((t >> 8) & 0xff00ff); \
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t &= 0xff00ff; \
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\
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x = (((x >> 8) & 0xff00ff) * a) + 0x800080; \
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x = (x + ((x >> 8) & 0xff00ff)) >> 8; \
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x &= 0xff00ff; \
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x += (y >> 8) & 0xff00ff; \
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x |= 0x1000100 - ((x >> 8) & 0xff00ff); \
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x &= 0xff00ff; \
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x <<= 8; \
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x += t; \
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} while (0)
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/*
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x_c = (x_c * a + y_c * b) / 255
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*/
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#define FbByteAddMul(x, a, y, b) do { \
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CARD32 t; \
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CARD32 r = (x >> 24) * a + (y >> 24) * b + 0x80; \
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r += (r >> 8); \
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r >>= 8; \
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\
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t = (x & 0xff00) * a + (y & 0xff00) * b; \
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t += (t >> 8) + 0x8000; \
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t >>= 16; \
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\
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t |= r << 16; \
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t |= 0x1000100 - ((t >> 8) & 0xff00ff); \
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t &= 0xff00ff; \
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t <<= 8; \
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\
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r = ((x >> 16) & 0xff) * a + ((y >> 16) & 0xff) * b + 0x80; \
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r += (r >> 8); \
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r >>= 8; \
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\
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x = (x & 0xff) * a + (y & 0xff) * b + 0x80; \
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x += (x >> 8); \
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x >>= 8; \
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x |= r << 16; \
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x |= 0x1000100 - ((x >> 8) & 0xff00ff); \
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x &= 0xff00ff; \
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x |= t; \
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} while (0)
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/*
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x_c = (x_c * a + y_c *b) / 256
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*/
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#define FbByteAddMul_256(x, a, y, b) do { \
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CARD32 t = (x & 0xff00ff) * a + (y & 0xff00ff) * b; \
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t >>= 8; \
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t &= 0xff00ff; \
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\
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x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b; \
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x &= 0xff00ff00; \
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x += t; \
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} while (0)
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/*
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x_c = (x_c * a_c) / 255
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*/
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#define FbByteMulC(x, a) do { \
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CARD32 t; \
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CARD32 r = (x & 0xff) * (a & 0xff); \
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r |= (x & 0xff0000) * ((a >> 16) & 0xff); \
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r += 0x800080; \
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r = (r + ((r >> 8) & 0xff00ff)) >> 8; \
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r &= 0xff00ff; \
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\
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x >>= 8; \
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t = (x & 0xff) * ((a >> 8) & 0xff); \
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t |= (x & 0xff0000) * (a >> 24); \
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t += 0x800080; \
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t = t + ((t >> 8) & 0xff00ff); \
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x = r | (t & 0xff00ff00); \
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\
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} while (0)
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/*
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x_c = (x_c * a) / 255 + y
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*/
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#define FbByteMulAddC(x, a, y) do { \
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CARD32 t; \
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CARD32 r = (x & 0xff) * (a & 0xff); \
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r |= (x & 0xff0000) * ((a >> 16) & 0xff); \
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r += 0x800080; \
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r = (r + ((r >> 8) & 0xff00ff)) >> 8; \
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r &= 0xff00ff; \
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r += y & 0xff00ff; \
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r |= 0x1000100 - ((r >> 8) & 0xff00ff); \
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r &= 0xff00ff; \
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\
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x >>= 8; \
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t = (x & 0xff) * ((a >> 8) & 0xff); \
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t |= (x & 0xff0000) * (a >> 24); \
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t += 0x800080; \
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t = (t + ((t >> 8) & 0xff00ff)) >> 8; \
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t &= 0xff00ff; \
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t += (y >> 8) & 0xff00ff; \
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t |= 0x1000100 - ((t >> 8) & 0xff00ff); \
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t &= 0xff00ff; \
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x = r | (t << 8); \
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} while (0)
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/*
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x_c = (x_c * a_c + y_c * b) / 255
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*/
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#define FbByteAddMulC(x, a, y, b) do { \
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CARD32 t; \
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CARD32 r = (x >> 24) * (a >> 24) + (y >> 24) * b; \
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r += (r >> 8) + 0x80; \
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r >>= 8; \
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\
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t = (x & 0xff00) * ((a >> 8) & 0xff) + (y & 0xff00) * b; \
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t += (t >> 8) + 0x8000; \
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t >>= 16; \
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\
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t |= r << 16; \
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t |= 0x1000100 - ((t >> 8) & 0xff00ff); \
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t &= 0xff00ff; \
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t <<= 8; \
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\
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r = ((x >> 16) & 0xff) * ((a >> 16) & 0xff) + ((y >> 16) & 0xff) * b + 0x80; \
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r += (r >> 8); \
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r >>= 8; \
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\
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x = (x & 0xff) * (a & 0xff) + (y & 0xff) * b + 0x80; \
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x += (x >> 8); \
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x >>= 8; \
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x |= r << 16; \
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x |= 0x1000100 - ((x >> 8) & 0xff00ff); \
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x &= 0xff00ff; \
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x |= t; \
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} while (0)
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/*
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x_c = min(x_c + y_c, 255)
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*/
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#define FbByteAdd(x, y) do { \
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CARD32 t; \
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CARD32 r = (x & 0xff00ff) + (y & 0xff00ff); \
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r |= 0x1000100 - ((r >> 8) & 0xff00ff); \
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r &= 0xff00ff; \
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\
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t = ((x >> 8) & 0xff00ff) + ((y >> 8) & 0xff00ff); \
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t |= 0x1000100 - ((t >> 8) & 0xff00ff); \
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r |= (t & 0xff00ff) << 8; \
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x = r; \
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} while (0)
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#define div_255(x) (((x) + 0x80 + (((x) + 0x80) >> 8)) >> 8)
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#if defined(__i386__) && defined(__GNUC__)
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#define FASTCALL __attribute__((regparm(3)))
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#else
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#define FASTCALL
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#endif
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typedef struct _FbComposeData {
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CARD8 op;
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PicturePtr src;
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PicturePtr mask;
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PicturePtr dest;
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INT16 xSrc;
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INT16 ySrc;
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INT16 xMask;
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INT16 yMask;
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INT16 xDest;
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INT16 yDest;
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CARD16 width;
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CARD16 height;
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} FbComposeData;
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typedef FASTCALL void (*CombineMaskU) (CARD32 *src, const CARD32 *mask,
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int width);
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typedef FASTCALL void (*CombineFuncU) (CARD32 *dest, const CARD32 *src,
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int width);
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typedef FASTCALL void (*CombineFuncC) (CARD32 *dest, CARD32 *src, CARD32 *mask,
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int width);
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typedef struct _FbComposeFunctions {
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const CombineFuncU *combineU;
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const CombineFuncC *combineC;
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CombineMaskU combineMaskU;
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} FbComposeFunctions;
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/* fbcompose.c */
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void
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fbCompositeGeneral(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
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/* fbedge.c */
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void
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fbRasterizeEdges(FbBits * buf,
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int bpp,
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int width,
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int stride,
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RenderEdge * l, RenderEdge * r, xFixed t, xFixed b);
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/* fbpict.c */
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CARD32
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fbOver(CARD32 x, CARD32 y);
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CARD32
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fbOver24(CARD32 x, CARD32 y);
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CARD32
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fbIn(CARD32 x, CARD8 y);
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void
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fbCompositeSolidMask_nx8x8888(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSolidMask_nx8x0888(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSolidMask_nx8888x8888C(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSolidMask_nx8x0565(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSolidMask_nx8888x0565C(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSrc_8888x8888(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
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void
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fbCompositeSrc_8888x0888(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
|
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INT16 xSrc,
|
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INT16 ySrc,
|
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INT16 xMask,
|
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INT16 yMask,
|
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INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
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|
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void
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fbCompositeSrc_8888x0565(CARD8 op,
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PicturePtr pSrc,
|
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PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
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|
|
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void
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|
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fbCompositeSrc_0565x0565(CARD8 op,
|
|
PicturePtr pSrc,
|
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PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
|
|
|
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void
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|
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fbCompositeSrcAdd_8000x8000(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst,
|
|
INT16 yDst, CARD16 width, CARD16 height);
|
|
|
|
void
|
|
|
|
fbCompositeSrcAdd_8888x8888(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst,
|
|
INT16 yDst, CARD16 width, CARD16 height);
|
|
|
|
void
|
|
|
|
fbCompositeSrcAdd_1000x1000(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst,
|
|
INT16 yDst, CARD16 width, CARD16 height);
|
|
|
|
void
|
|
|
|
fbCompositeSolidMask_nx1xn(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask,
|
|
INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
|
|
|
|
void
|
|
|
|
fbComposite(CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pMask,
|
|
PicturePtr pDst,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
INT16 xMask,
|
|
INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
|
|
|
|
/* fbtrap.c */
|
|
|
|
void
|
|
|
|
fbAddTraps(PicturePtr pPicture,
|
|
INT16 xOff, INT16 yOff, int ntrap, xTrap * traps);
|
|
|
|
void
|
|
|
|
fbRasterizeTrapezoid(PicturePtr alpha, xTrapezoid * trap, int x_off, int y_off);
|
|
|
|
void
|
|
|
|
fbAddTriangles(PicturePtr pPicture,
|
|
INT16 xOff, INT16 yOff, int ntri, xTriangle * tris);
|
|
|
|
#endif /* _FBPICT_H_ */
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