diff options
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/emulTile.c')
| -rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/emulTile.c | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/emulTile.c b/xorg-server/hw/xfree86/xf4bpp/emulTile.c deleted file mode 100644 index 2f2a758f2..000000000 --- a/xorg-server/hw/xfree86/xf4bpp/emulTile.c +++ /dev/null @@ -1,352 +0,0 @@ -/* - * Copyright IBM Corporation 1987,1988,1989 - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of IBM not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * -*/ - -/* ppc Tile - * P. Shupak 11/87 - * Modified From original ppc Tile - * T. Paquin 9/87 - * Uses private imageFill a bunch of times - */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include "xf4bpp.h" -#include "OScompiler.h" -#include "ibmTrace.h" - -static void -DrawFirstTile -( - WindowPtr pWin, /* GJA */ - register PixmapPtr pTile, - register int x, - register int y, - int w, - int h, - int alu, - unsigned long int planes, - int xOffset, - int yOffset -) -{ -register int htarget ; -register int vtarget ; - - if ( xOffset ) { /* Not X-Aligned */ - if ( yOffset ) { /* Nor Y-Aligned */ - htarget = MIN( pTile->drawable.width - xOffset, w ), - vtarget = MIN( pTile->drawable.height - yOffset, h ), - yOffset *= pTile->devKind ; - xf4bppDrawColorImage( pWin,x, y, - htarget, - vtarget, - (unsigned char *)pTile->devPrivate.ptr + yOffset + xOffset, - pTile->devKind, - alu, planes ) ; - if ( w > htarget ) { - w = MIN( w, pTile->drawable.width ) ; - if ( h > vtarget ) { - h = MIN( h, pTile->drawable.height ) ; - xf4bppDrawColorImage( pWin, x, y + vtarget, - htarget, - h - vtarget, - (unsigned char *)pTile->devPrivate.ptr + xOffset, - pTile->devKind, - alu, planes ) ; - xf4bppDrawColorImage( pWin, x + htarget, y, - w - htarget, - vtarget, - (unsigned char *)pTile->devPrivate.ptr + yOffset, - pTile->devKind, - alu, planes ) ; - xf4bppDrawColorImage( pWin, x + htarget, - y + vtarget, - w - htarget, - h - vtarget, - pTile->devPrivate.ptr, - pTile->devKind, - alu, planes ) ; - } - else { /* h <= vtarget */ - xf4bppDrawColorImage( pWin, x + htarget, y, - w - htarget, - vtarget, - (unsigned char *)pTile->devPrivate.ptr + yOffset, - pTile->devKind, - alu, planes ) ; - } - } - else if ( h > vtarget ) { - xf4bppDrawColorImage( pWin, x, y + vtarget, - htarget, - MIN( h, pTile->drawable.height ) - vtarget, - (unsigned char *)pTile->devPrivate.ptr + xOffset, - pTile->devKind, - alu, planes ) ; - vtarget = pTile->drawable.height ; - } - } - else { /* No Y Offset */ - xf4bppDrawColorImage( pWin, x, y, - htarget = MIN( pTile->drawable.width - xOffset, w ), - vtarget = MIN( pTile->drawable.height, h ), - (unsigned char *)pTile->devPrivate.ptr + xOffset, - pTile->devKind, - alu, planes ) ; - if ( w > htarget ) { - xf4bppDrawColorImage( pWin, x + htarget, y, - MIN( pTile->drawable.width, w ) - htarget, - vtarget, - pTile->devPrivate.ptr, - pTile->devKind, - alu, planes ) ; - } - } - } - else if ( yOffset ) { - xf4bppDrawColorImage( pWin, x, y, - htarget = MIN( pTile->drawable.width, w ), - vtarget = MIN( pTile->drawable.height - yOffset, h ), - (unsigned char *)pTile->devPrivate.ptr + ( yOffset * pTile->devKind ), - pTile->devKind, - alu, planes ) ; - if ( h > vtarget ) { - xf4bppDrawColorImage( pWin, x, y + vtarget, - htarget, - MIN( pTile->drawable.height, h ) - vtarget, - pTile->devPrivate.ptr, - pTile->devKind, - alu, planes ) ; - } - } - else { /* NO Offset */ - xf4bppDrawColorImage( pWin, x, y, - htarget = MIN( pTile->drawable.width, w ), - vtarget = MIN( pTile->drawable.height, h ), - pTile->devPrivate.ptr, - pTile->devKind, - alu, planes ) ; - } - - return ; -} - -/* GJA -- - * After finding three kinds of errors in this single function, - * (requiring modifications to be made at at least 10 places, - * I decided to REWRITE the body of the xf4bppTileRect function from scratch. - * This version simply computes all relevant margins in advance, and does - * not try to reuse temporary variables. I leave that to the compiler. - * (This was a maintenance and robustness nightmare anyway.) - * The code is pretty obvious: all margins, coordinates, and numbers of tiles - * are computed before drawing starts. - * Notice that the margins consist of incompletely drawn tiles. Therefore - * we need offsets in the data for the left and upper margins. - * The right and lower margins are also incomplete, but start at offset 0 - * in the data. They just end at awkward offsets. - * The center block, by definition, consists of fully drawn tiles. - * Perhaps we could leave out some if's. But why bother? It would decrease - * robustness. - */ -void -xf4bppTileRect( pWin, pTile, alu, planes, x0, y0, w, h, xSrc, ySrc ) -WindowPtr pWin; /* GJA */ -register PixmapPtr pTile ; -const int alu ; -const unsigned long int planes ; -register int x0, y0, w, h ; -int xSrc ; -int ySrc ; -{ -int xOffset ; -int yOffset ; -int width, height; - -TRACE( ( "xf4bppTileRect(pTile=x%x,alu=x%x,planes=x%02x,x0=%d,y0=%d,w=%d,h=%d,xSrc=%d,ySrc=%d\n", - pTile, alu, planes, x0, y0, w, h, xSrc, ySrc ) ) ; - - switch ( alu ) { - case GXclear: /* 0x0 Zero 0 */ - case GXinvert: /* 0xa NOT dst */ - case GXset: /* 0xf 1 */ - xf4bppFillSolid - ( pWin, 0xFF, alu, planes, x0, y0, w, h ) ; - case GXnoop: /* 0x5 dst */ - return ; - default: - break ; -} - - width = pTile->drawable.width; - if ( ( xOffset = ( x0 - xSrc ) ) > 0 ) - xOffset %= width ; - else - xOffset = width - (( - xOffset ) % width ) ; - if ( xOffset == width ) xOffset = 0; /* For else case */ - - height = pTile->drawable.height; - if ( ( yOffset = ( y0 - ySrc ) ) > 0 ) - yOffset %= height ; - else - yOffset = height - (( - yOffset ) % height ) ; - if ( yOffset == height ) yOffset = 0; /* For else case */ - - switch ( alu ) { - case GXcopyInverted: /* 0xc NOT src */ - case GXcopy: /* 0x3 src */ - /* Special Case Code */ - DrawFirstTile( pWin, pTile, x0, y0, w, h, - alu, planes, xOffset, yOffset ) ; - /* Here We Double The Size Of The BLIT Each Iteration */ - xf4bppReplicateArea( pWin, x0, y0, planes, w, h, - MIN( w, pTile->drawable.width ), - MIN( h, pTile->drawable.height ) ) ; - break ; - case GXnor: /* 0x8 NOT src AND NOT dst */ - case GXandReverse: /* 0x2 src AND NOT dst */ - case GXorReverse: /* 0xb src OR NOT dst */ - case GXnand: /* 0xe NOT src OR NOT dst */ - case GXandInverted: /* 0x4 NOT src AND dst */ - case GXand: /* 0x1 src AND dst */ - case GXequiv: /* 0x9 NOT src XOR dst */ - case GXxor: /* 0x6 src XOR dst */ - case GXorInverted: /* 0xd NOT src OR dst */ - case GXor: /* 0x7 src OR dst */ - default: - { - register unsigned char *data ; - register int hcount, vcount ; /* Number of tiles in center */ - int xcount, ycount; /* Temporaries */ - int x1, y1; /* Left upper corner of center */ - int x2, y2; /* Left upper corner of lower right margin */ - int leftmgn, rightmgn, topmgn, botmgn; /* Margins */ - - int htarget, vtarget ; - - data = pTile->devPrivate.ptr; - - /* Compute the various sizes and coordinates. */ - leftmgn = MIN( w, width - xOffset ) ; - x1 = x0 + leftmgn; - topmgn = MIN( h, height - yOffset ) ; - y1 = y0 + topmgn; - - rightmgn = (w - leftmgn) % width; - hcount = (w - leftmgn) / width; - x2 = x0 + w - rightmgn; - botmgn = (h - topmgn) % height; - vcount = (h - topmgn) / height; - y2 = y0 + h - botmgn; - - /* We'll use yOffset as offset in data. - * This requires yOffset != height (ditto xOffset). - */ - yOffset *= pTile->devKind; - - /* Draw top margin, including corners */ - if ( topmgn ) { - if ( leftmgn ) { - xf4bppDrawColorImage( pWin, x0, y0, leftmgn, topmgn, - data + yOffset + xOffset, - pTile->devKind, alu, planes ) ; - } - for ( xcount = hcount, htarget = x1; - xcount ; - xcount--, htarget += width ) - { - xf4bppDrawColorImage( pWin, htarget, y0, width, topmgn, - data + yOffset, - pTile->devKind, alu, planes ) ; - } - if ( rightmgn ) { - xf4bppDrawColorImage( pWin, x2, y0, rightmgn, topmgn, - data + yOffset, - pTile->devKind, alu, planes ) ; - } - } - - /* Draw bottom margin, including corners */ - if ( botmgn ) { - if ( leftmgn ) { - xf4bppDrawColorImage( pWin, x0, y2, leftmgn, botmgn, - data + xOffset, - pTile->devKind, alu, planes ) ; - } - for ( xcount = hcount, htarget = x1; - xcount ; - xcount--, htarget += width ) - { - xf4bppDrawColorImage( pWin, htarget, y2, width, botmgn, - data, - pTile->devKind, alu, planes ) ; - } - if ( rightmgn ) { - xf4bppDrawColorImage( pWin, x2, y2, rightmgn, botmgn, - data, - pTile->devKind, alu, planes ) ; - } - } - - /* Draw left margin, excluding corners */ - if ( leftmgn ) { - for ( ycount = vcount, vtarget = y1 ; - ycount ; - ycount--, vtarget += height ) - { - xf4bppDrawColorImage( pWin, x0, vtarget, leftmgn, height, - data + xOffset, - pTile->devKind, alu, planes ) ; - } - } - - /* Draw right margin, excluding corners */ - if ( rightmgn ) { - for ( ycount = vcount, vtarget = y1 ; - ycount ; - ycount--, vtarget += height ) - { - xf4bppDrawColorImage( pWin, x2, vtarget, rightmgn, height, - data, - pTile->devKind, alu, planes ) ; - } - } - - /* Draw center consisting of full tiles */ - for ( ycount = vcount, vtarget = y1 ; - ycount ; - ycount--, vtarget += height ) - { - for ( xcount = hcount, htarget = x1 ; - xcount ; - xcount--, htarget += width ) - { - xf4bppDrawColorImage( pWin, htarget, vtarget, width, height, - data, - pTile->devKind, alu, planes ) ; - - } - } - } } /* Block + switch */ -} |