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Diffstat (limited to 'hw/xprint/pcl/PclColor.c')
| -rw-r--r-- | hw/xprint/pcl/PclColor.c | 851 |
1 files changed, 0 insertions, 851 deletions
diff --git a/hw/xprint/pcl/PclColor.c b/hw/xprint/pcl/PclColor.c deleted file mode 100644 index 5e8ffa63c..000000000 --- a/hw/xprint/pcl/PclColor.c +++ /dev/null @@ -1,851 +0,0 @@ -/******************************************************************* -** -** ********************************************************* -** * -** * File: PclColorInit.c -** * -** * Contents: -** * Colormap handing code of Pcl driver for the -** * print server. -** * -** * Created: 4/8/96 -** * -** ********************************************************* -** -********************************************************************/ -/* -(c) Copyright 1996 Hewlett-Packard Company -(c) Copyright 1996 International Business Machines Corp. -(c) Copyright 1996 Sun Microsystems, Inc. -(c) Copyright 1996 Novell, Inc. -(c) Copyright 1996 Digital Equipment Corp. -(c) Copyright 1996 Fujitsu Limited -(c) Copyright 1996 Hitachi, Ltd. - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER -IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the names of the copyright holders shall -not be used in advertising or otherwise to promote the sale, use or other -dealings in this Software without prior written authorization from said -copyright holders. -*/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> -#include <math.h> - -#include "colormapst.h" -#include "windowstr.h" -#include "resource.h" - -#include "Pcl.h" -#include "fb.h" - -static void lookup(unsigned char *src, - unsigned char *dst, - int num, - unsigned char *map, - int dim); -static void trilinear(unsigned char *p, - unsigned char *out, - unsigned char *d, - int dim, - unsigned char def); - - -/* - * This seems to be (and is) a duplication of effort; one would think - * that fbCreateDefColormap would be sufficient. It almost is. The - * only change made in this function is that the black and white pixels - * are allocated with three separate variables for red, green and blue - * values, instead of the single variable in fbCreateDefColormap. The - * single variable leads to the one value being corrected by - * ResolveColor three times, which leads to incorrect colors. - */ - -Bool -PclCreateDefColormap(ScreenPtr pScreen) -{ - unsigned short wp_red = ~0, wp_green = ~0, wp_blue = ~0; - unsigned short bp_red = 0, bp_green = 0, bp_blue = 0; - VisualPtr pVisual; - ColormapPtr cmap; - Pixel wp, bp; - - for (pVisual = pScreen->visuals; - pVisual->vid != pScreen->rootVisual; - pVisual++) - ; - - if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap, - (pVisual->class & DynamicClass) ? AllocNone : AllocAll, - 0) - != Success) - return FALSE; - wp = pScreen->whitePixel; - bp = pScreen->blackPixel; - if ((AllocColor(cmap, &wp_red, &wp_green, &wp_blue, &wp, 0) != - Success) || - (AllocColor(cmap, &bp_red, &bp_green, &bp_blue, &bp, 0) != - Success)) - return FALSE; - - pScreen->whitePixel = wp; - pScreen->blackPixel = bp; - - (*pScreen->InstallColormap)(cmap); - return TRUE; -} - -/* - * Add colormap to list of colormaps on screen - */ -Bool -PclCreateColormap(ColormapPtr pColor) -{ - PclCmapToContexts *new; - PclScreenPrivPtr sPriv; - - sPriv = (PclScreenPrivPtr) - dixLookupPrivate(&pColor->pScreen->devPrivates, PclScreenPrivateKey); - - /* - * Use existing code to initialize the values in the colormap - */ - fbInitializeColormap( pColor ); - - /* - * Set up the mapping between the color map and the context - */ - new = (PclCmapToContexts *)xalloc( sizeof( PclCmapToContexts ) ); - - if( new ) - { - new->colormapId = pColor->mid; - new->contexts = NULL; - new->next = sPriv->colormaps; - sPriv->colormaps = new; - - return TRUE; - } - else - return FALSE; -} - -void -PclDestroyColormap(ColormapPtr pColor) -{ - PclScreenPrivPtr sPriv; - PclCmapToContexts *pCmap, *tCmap = 0; - PclContextListPtr con, tCon; - PclContextPrivPtr cPriv; - PclPaletteMapPtr pPal; - char t[80]; - - /* - * At DestroyContext time, colormaps may be destroyed twice, so if the - * pointer is NULL, just crash out. - */ - if( !pColor ) - return; - - /* - * Find the colormap <-> contexts mapping - */ - sPriv = (PclScreenPrivPtr) - dixLookupPrivate(&pColor->pScreen->devPrivates, PclScreenPrivateKey); - pCmap = sPriv->colormaps; - while( pCmap ) - { - if( pCmap->colormapId == pColor->mid ) - break; - tCmap = pCmap; - pCmap = pCmap->next; - } - - /* - * For each context, delete the palette in the printer and - * free the mapping. - */ - if( pCmap ) - { - con = pCmap->contexts; - while( con ) - { - cPriv = dixLookupPrivate(&con->context->devPrivates, - PclContextPrivateKey); - pPal = cPriv->palettes; - while( pPal ) - { - if( pPal->colormapId == pColor->mid ) - break; - pPal = pPal->next; - } - - if( cPriv->pPageFile ) - { - sprintf( t, "\033&p%dI\033*p2C", pPal->paletteId ); - SEND_PCL( cPriv->pPageFile, t ); - } - - tCon = con; - con = con->next; - xfree( tCon ); - } - - /* - * Delete the colormap<->contexts mapping - */ - if( sPriv->colormaps == pCmap ) - /* Delete from the front */ - sPriv->colormaps = pCmap->next; - else - /* Delete from the middle */ - tCmap->next = pCmap->next; - free( pCmap ); - } -} - -void -PclInstallColormap(ColormapPtr pColor) -{ -} - -void -PclUninstallColormap(ColormapPtr pColor) -{ -} - -int -PclListInstalledColormaps(ScreenPtr pScreen, - XID *pCmapList) -{ - return 0; -} - -void -PclStoreColors(ColormapPtr pColor, - int ndef, - xColorItem *pdefs) -{ - PclCmapToContexts *p; - PclScreenPrivPtr sPriv; - PclContextListPtr con; - PclContextPrivPtr cPriv; - PclPaletteMapPtr pMap; - char t[80]; - int i; - - sPriv = (PclScreenPrivPtr) - dixLookupPrivate(&pColor->pScreen->devPrivates, PclScreenPrivateKey); - p = sPriv->colormaps; - while( p ) - { - if( p->colormapId == pColor->mid ) - break; - p = p->next; - } - - if( p ) - { - con = p->contexts; - while( con ) - { - /* - * For each context, get the palette ID and update the - * appropriate palette. - */ - cPriv = dixLookupPrivate(&con->context->devPrivates, - PclContextPrivateKey); - pMap = PclFindPaletteMap( cPriv, pColor, NULL ); - - /* - * Update the palette - */ - sprintf( t, "\033&p%dS", pMap->paletteId ); - SEND_PCL( cPriv->pPageFile, t ); - - if( pColor->class == PseudoColor ) - { - unsigned short r, g, b; - unsigned int pID; - for( i = 0; i < ndef; i++ ) - { - pID = pdefs[i].pixel; - if ( pColor->red[i].fShared ) - { - r = pColor->red[pID].co.shco.red->color; - g = pColor->red[pID].co.shco.green->color; - b = pColor->red[pID].co.shco.blue->color; - } - else - { - r = pColor->red[pID].co.local.red; - g = pColor->red[pID].co.local.green; - b = pColor->red[pID].co.local.blue; - } - - if( pdefs[i].flags & DoRed ) - r = pdefs[i].red; - if( pdefs[i].flags & DoGreen ) - g = pdefs[i].green; - if( pdefs[i].flags & DoBlue ) - b = pdefs[i].blue; - PclLookUp(pColor, cPriv, &r, &g, &b); - sprintf( t, "\033*v%ua%ub%uc%dI", r, g, b, pID); - SEND_PCL( cPriv->pPageFile, t ); - } - } - - sprintf( t, "\033&p%dS", cPriv->currentPalette ); - SEND_PCL( cPriv->pPageFile, t ); - - con = con->next; - } - } -} - -void -PclResolveColor(unsigned short *pRed, - unsigned short *pGreen, - unsigned short *pBlue, - VisualPtr pVisual) -{ - /* - * We need to map the X color range of [0,65535] to the PCL color - * range of [0,32767]. - */ - *pRed >>= 1; - *pGreen >>= 1; - *pBlue >>= 1; -} - -PclPaletteMapPtr -PclFindPaletteMap(PclContextPrivPtr cPriv, - ColormapPtr cmap, - GCPtr gc) -{ - PclPaletteMapPtr p = cPriv->palettes, new; - - /* - * If the colormap is static, grab one of the special palettes. If we come - * into this from StoreColors, there will be no GC, but by definition we're - * looking at a dynamic color map, so the special colors will not be - * needed. - */ - if( gc ) - { - if( cmap->pVisual->class == StaticGray ) - return &( cPriv->staticGrayPalette ); - else if( cmap->pVisual->class == TrueColor ) - { - if( gc->fillStyle == FillTiled && !( gc->tileIsPixel ) ) - return &( cPriv->specialTrueColorPalette ); - else - return &( cPriv->trueColorPalette ); - } - } - - - /* Look for the colormap ID <-> palette ID mapping */ - while( p ) - { - if( p->colormapId == cmap->mid ) - return p; - p = p->next; - } - - /* If the colormap isn't already there, make an entry for it */ - new = (PclPaletteMapPtr)xalloc( sizeof( PclPaletteMap ) ); - new->colormapId = cmap->mid; - new->paletteId = cPriv->nextPaletteId++; - new->downloaded = 0; - new->next = cPriv->palettes; - cPriv->palettes = new; - return new; -} - -int -PclUpdateColormap(DrawablePtr pDrawable, - XpContextPtr pCon, - GCPtr gc, - FILE *outFile) -{ - PclScreenPrivPtr sPriv; - - PclContextPrivPtr cPriv; - PclPaletteMapPtr pMap; - PclCmapToContexts *pCmap; - PclContextListPtr new; - char t[80]; - Colormap c; - ColormapPtr cmap; - WindowPtr win = (WindowPtr)pDrawable; - unsigned short r, g, b, rr, gg, bb; - int i; - - cPriv = (PclContextPrivPtr) - dixLookupPrivate(&pCon->devPrivates, PclContextPrivateKey); - - c = wColormap( win ); - cmap = (ColormapPtr)LookupIDByType( c, RT_COLORMAP ); - pMap = PclFindPaletteMap( cPriv, cmap, gc ); - - if( cPriv->currentPalette == pMap->paletteId ) - /* - * If the requested colormap is already active, nothing needs to - * be done. - */ - return FALSE; - - /* - * Now we activate the palette in the printer - */ - sprintf( t, "\033&p%dS", pMap->paletteId ); - SEND_PCL( outFile, t ); - cPriv->currentPalette = pMap->paletteId; - - if( pMap->downloaded == 0 ) - /* - * If the requested colormap has not been downloaded to the - * printer, we need to do that before activating it. - */ - { - /* - * Add the colormap to the screen-level colormap<->context mapping. - */ - sPriv = (PclScreenPrivPtr) - dixLookupPrivate(&cmap->pScreen->devPrivates, - PclScreenPrivateKey); - pCmap = sPriv->colormaps; - while( pCmap && ( pCmap->colormapId != cmap->mid ) ) - pCmap = pCmap->next; - new = (PclContextListPtr)xalloc( sizeof( PclContextList ) ); - new->context = pCon; - new->next = pCmap->contexts; - pCmap->contexts = new; - - /* - * XXX Download the colormap - */ - if( cmap->class == StaticGray ) - { -#ifdef XP_PCL_COLOR - sprintf( t, "\033*v18W%c%c%c%c%c%c", 0, 1, 1, 1, 1, 1 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 12 ); - - /* Send the white reference point... */ - sprintf( t, "%c%c%c%c%c%c", 0x7f, 0xff, 0x7f, 0xff, - 0x7f, 0xff ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* ... and the black reference point */ - sprintf( t, "%c%c%c%c%c%c", 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* Now program the two colors */ - sprintf( t, "\033*v0a0b0c%ldI", (long) cmap->pScreen->blackPixel ); - SEND_PCL( cPriv->pPageFile, t ); - sprintf( t, "\033*v32767a32767b32767c%ldI", - (long) cmap->pScreen->whitePixel ); - SEND_PCL( cPriv->pPageFile, t ); -#endif /* XP_PCL_COLOR */ - } - else if( cmap->class == PseudoColor ) - { - sprintf( t, - "\033*v18W%c%c%c%c%c%c", - 0, 1, cmap->pVisual->nplanes, 16, 16, 16 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 12 ); - - /* Send the white reference point... */ - if ( cPriv->ctbl != NULL ) - sprintf( t, "%c%c%c%c%c%c", 0x00, 0xff, 0x00, 0xff, - 0x00, 0xff ); - else - sprintf( t, "%c%c%c%c%c%c", 0x7f, 0xff, 0x7f, 0xff, - 0x7f, 0xff ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* ... and the black reference point */ - sprintf( t, "%c%c%c%c%c%c", 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - for(i = 0; i < cmap->pVisual->ColormapEntries; i++ ) - { - if( cmap->red[i].fShared ) - { - r = cmap->red[i].co.shco.red->color; - g = cmap->red[i].co.shco.green->color; - b = cmap->red[i].co.shco.blue->color; - } - else - { - r = cmap->red[i].co.local.red; - g = cmap->red[i].co.local.green; - b = cmap->red[i].co.local.blue; - } - PclLookUp(cmap, cPriv, &r, &g, &b); - sprintf( t, "\033*v%ua%ub%uc%dI", r, g, b, i ); - SEND_PCL( outFile, t ); - } - } - else if( cmap->class == TrueColor ) - { - unsigned short lim; - - if( gc->fillStyle == FillTiled && !( gc->tileIsPixel ) ) - { - if( cPriv->ctbl != NULL ) - { - /* Send the "special" colormap for 24-bit fills */ - sprintf( t, "\033*v18W%c%c%c%c%c%c", 0, 1, - 8, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 12 ); - - /* Send the white reference point... */ - sprintf( t, "%c%c%c%c%c%c", - 0x00, 0xff, - 0x00, 0xff, - 0x00, 0xff ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* ... and the black reference point */ - sprintf( t, "%c%c%c%c%c%c", - 0x00, 0x00, - 0x00, 0x00, - 0x00, 0x00 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* Now send the color entries, RRRGGGBB */ - i=0; - for( r = 0; r < 8; r++ ) - for( g = 0; g < 8; g ++ ) - for( b = 0; b < 4; b++ ) - { - rr = (r * 0xff)/7; - gg = (g * 0xff)/7; - bb = (b * 0xff)/3; - PclLookUp(cmap, cPriv, &rr, &gg, &bb); - sprintf( t, "\033*v%ua%ub%uc%dI", - rr, gg, bb, i ); - SEND_PCL( outFile, t ); - i++; - } - } - else - { - /* Send the "special" colormap for 24-bit fills */ - sprintf( t, "\033*v18W%c%c%c%c%c%c", 0, 1, - 8, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 12 ); - - /* Send the white reference point... */ - sprintf( t, "%c%c%c%c%c%c", - 0x00, 0x07, - 0x00, 0x07, - 0x00, 0x03 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* ... and the black reference point */ - sprintf( t, "%c%c%c%c%c%c", - 0x00, 0x00, - 0x00, 0x00, - 0x00, 0x00 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* Now send the color entries, RRRGGGBB */ - i=0; - for( r = 0; r < 8; r++ ) - for( g = 0; g < 8; g ++ ) - for( b = 0; b < 4; b++ ) - { - sprintf( t, "\033*v%ua%ub%uc%dI", - r, g, b, i ); - SEND_PCL( outFile, t ); - i++; - } - } - - } - else - { - lim = (1 << cmap->pVisual->bitsPerRGBValue) - 1; - - /* Send the "special" colormap for 24-bit fills */ - sprintf( t, "\033*v18W%c%c%c%c%c%c", 0, 3, - cmap->pVisual->nplanes, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue, - cmap->pVisual->bitsPerRGBValue ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 12 ); - - /* Send the white reference point... */ - sprintf( t, "%c%c%c%c%c%c", - (lim >> 8) & 0xff, lim & 0xff, - (lim >> 8) & 0xff, lim & 0xff, - (lim >> 8) & 0xff, lim & 0xff); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - - /* ... and the black reference point */ - sprintf( t, "%c%c%c%c%c%c", 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00 ); - SEND_PCL_COUNT( cPriv->pPageFile, t, 6 ); - } - - } - pMap->downloaded = 1; - } - return TRUE; - -} - -void PclLookUp( - ColormapPtr cmap, - PclContextPrivPtr cPriv, - unsigned short *r, - unsigned short *g, - unsigned short *b -) -{ - unsigned char cdata[3]; - - if( cmap->class == PseudoColor ) - { - if( cPriv->ctbl != NULL ) - { - cdata[0] = *r >> 8; - cdata[1] = *g >> 8; - cdata[2] = *b >> 8; - lookup(cdata, cdata, 1, cPriv->ctbl, cPriv->ctbldim); - *r = cdata[0]; - *g = cdata[1]; - *b = cdata[2]; - } - else - { - *r >>= 1; - *g >>= 1; - *b >>= 1; - } - } - else if( cmap->class == TrueColor ) - { - if( cPriv->ctbl != NULL ) - { - cdata[0] = *r; - cdata[1] = *g; - cdata[2] = *b; - lookup(cdata, cdata, 1, cPriv->ctbl, cPriv->ctbldim); - *r = cdata[0]; - *g = cdata[1]; - *b = cdata[2]; - } - } - return; -} - -unsigned char *PclReadMap(char *name, int *dim) -{ - FILE *fp; - unsigned char *data; - long size; - - if ((fp=fopen(name, "r")) == NULL) { - return(NULL); - } - - fseek(fp, 0, SEEK_END); - size = ftell(fp); - - /* Could do this with a lookup table, if the constraint is that the - 3 map dimensions must be equal. */ - switch (size) { - case 8*8*8*3: - *dim = 8; - break; - case 16*16*16*3: - *dim = 16; - break; - case 17*17*17*3: - *dim = 17; - break; - case 65*65*65*3: - *dim = 65; - break; - default: - fclose(fp); - return(NULL); - } - - if ((data = (unsigned char *) xalloc(sizeof(char) * size)) == NULL) { - fclose(fp); - return(NULL); - } - - fseek(fp, 0, SEEK_SET); - - if (fread(data, sizeof(char), size, fp) != (unsigned) size) { - fclose(fp); - free(data); - return(NULL); - } - - fclose(fp); - return(data); -} - -/************************************************************************ - * - * Here is the mapper. - * - ************************************************************************/ - -#define SCL(x) ((x)*(dim-1)/255) -/* Interleaved-map lookup */ -static void lookup(unsigned char *src, unsigned char *dst, int num, unsigned char *map, int dim) -{ - int i; - -#define _INTERPOLATE -#ifndef _INTERPOLATE - unsigned char *p1, *p2, *p3; - - for (i=0; i<num; i++) { - p1 = map + (SCL(src[0])*dim*dim + SCL(src[1])*dim + SCL(src[2])) * 3; - *dst++ = *p1++; - *dst++ = *p1++; - *dst++ = *p1++; - src += 3; - } -#else - for (i=0; i<num; i++) { - trilinear(src, dst, map, dim, 128); - src += 3; - dst += 3; - } -#endif -} - -/* - * C code from the article - * "Tri-linear Interpolation" - * by Steve Hill, sah@ukc.ac.uk - * in "Graphics Gems IV", Academic Press, 1994 - * - * Fri Feb 16 14:12:43 PST 1996 - * Modified to use for 8-bit color mapping -- A. Fitzhugh, - * HP Labs, Printing Technology Department - */ - -/* linear interpolation from l (when a=0) to h (when a=1)*/ -/* (equal to (a*h)+((1-a)*l) */ -#define LERP(a,l,h) ((l)+((((h)-(l))*(a))>>8)) - -static void trilinear(unsigned char *p, unsigned char *out, unsigned char *d, int dim, unsigned char def) -{ -#define DENS(X, Y, Z, ch) d[((X*dim+Y)*dim+Z)*3+ch] - - int x0, y0, z0, - x1, y1, z1, - i; - unsigned char *dp, - fx, fy, fz, - d000, d001, d010, d011, - d100, d101, d110, d111, - dx00, dx01, dx10, dx11, - dxy0, dxy1; - float scale; - - scale = 255.0 / (dim-1); - - x0 = p[0] / scale; - y0 = p[1] / scale; - z0 = p[2] / scale; - - /* Fractions should range from 0-1.0 (fixed point 8-256) */ - fx = (((int) (p[0] - x0 * scale)) << 8) / 255; - fy = (((int) (p[1] - y0 * scale)) << 8) / 255; - fz = (((int) (p[2] - z0 * scale)) << 8) / 255; - - x1 = x0 + 1; - y1 = y0 + 1; - z1 = z0 + 1; - - for (i=0; i<3; i++) { - - if (x0 >= 0 && x1 < dim && - y0 >= 0 && y1 < dim && - z0 >= 0 && z1 < dim) { - dp = &DENS(x0, y0, z0, i); - d000 = dp[0]; - d100 = dp[3]; - dp += dim*3; - d010 = dp[0]; - d110 = dp[3]; - dp += dim*dim*3; - d011 = dp[0]; - d111 = dp[3]; - dp -= dim*3; - d001 = dp[0]; - d101 = dp[3]; - } else { -# define INRANGE(X, Y, Z) \ - ((X) >= 0 && (X) < dim && \ - (Y) >= 0 && (Y) < dim && \ - (Z) >= 0 && (Z) < dim) - - d000 = INRANGE(x0, y0, z0) ? DENS(x0, y0, z0, i) : def; - d001 = INRANGE(x0, y0, z1) ? DENS(x0, y0, z1, i) : def; - d010 = INRANGE(x0, y1, z0) ? DENS(x0, y1, z0, i) : def; - d011 = INRANGE(x0, y1, z1) ? DENS(x0, y1, z1, i) : def; - - d100 = INRANGE(x1, y0, z0) ? DENS(x1, y0, z0, i) : def; - d101 = INRANGE(x1, y0, z1) ? DENS(x1, y0, z1, i) : def; - d110 = INRANGE(x1, y1, z0) ? DENS(x1, y1, z0, i) : def; - d111 = INRANGE(x1, y1, z1) ? DENS(x1, y1, z1, i) : def; - } - - dx00 = LERP(fx, d000, d100); - dx01 = LERP(fx, d001, d101); - dx10 = LERP(fx, d010, d110); - dx11 = LERP(fx, d011, d111); - - dxy0 = LERP(fy, dx00, dx10); - dxy1 = LERP(fy, dx01, dx11); - - out[i] = LERP(fz, dxy0, dxy1); - } -} - |