+++ /dev/null
-// Copyright (c) 1999-2012 OPEN CASCADE SAS
-//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
-//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
-//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
-
-
-#include <Xw_Extension.h>
-
-/* ifdef then trace on */
-#ifdef TRACE
-#define TRACE_GET_COLOR_PIXEL
-#endif
-
-/*
- STATUS Xw_get_color_pixel(acolormap,r,g,b,pixel,isapproximate):
- XW_EXT_COLORMAP *acolormap Colormap extension structure
- float r,g,b ; Red,Green,Blue color value 0. >= x <= 1.
- unsigned long *pixel ; Return Color pixel depending of Visual Class
- bool isapproximate ;
-
- Gets the nearest color pixel from R,G,B Color values.
-
- Returns ERROR if Colormap is not defined properly
- Returns SUCCESS if Successful
-
-*/
-
-#define TEST 1
-#ifdef TEST /* Optim. no more necessary with XQueryColors */
-#define MAX_COLRS 256
-static int indice = 0;
-static int indice_max = 0;
-static XW_EXT_COLORMAP *qcolormap = NULL;
-static float tab_ind[MAX_COLRS][4];
-#endif
-
-#ifdef XW_PROTOTYPE
-XW_STATUS Xw_get_color_pixel(void* acolormap,
- float r,float g,float b,unsigned long* pixel,int *isapproximate)
-#else
-XW_STATUS Xw_get_color_pixel(acolormap,r,g,b,pixel,isapproximate)
-void *acolormap ;
-float r,g,b ;
-unsigned long *pixel ;
-int *isapproximate;
-#endif /*XW_PROTOTYPE*/
-{
-XW_EXT_COLORMAP *pcolormap = (XW_EXT_COLORMAP*)acolormap ;
-XW_STATUS status = XW_ERROR ;
-//XColor colors[MAXCOLOR] ;
-//int color_indexs[MAXCOLOR] ;
-//register i,j,n ;
-register int i ;
-
- *pixel = 0;
- if( !pcolormap ) {
- /*ERROR*Bad EXT_COLORMAP Address*/
- Xw_set_error( 42,"Xw_get_color_pixel",pcolormap ) ;
- return( XW_ERROR ) ;
- }
-
- *isapproximate = False;
- if( _CCLASS == TrueColor ) {
- unsigned long mask = _CVISUAL->map_entries-1 ;
- unsigned long red = (unsigned long) (r * mask) ;
- unsigned long green = (unsigned long) (g * mask) ;
- unsigned long blue = (unsigned long) (b * mask) ;
-
- mask = _CVISUAL->red_mask;
- while ( !(mask & 0x01) ) { mask >>= 1; red <<= 1; }
- mask = _CVISUAL->green_mask;
- while ( !(mask & 0x01) ) { mask >>= 1; green <<= 1; }
- mask = _CVISUAL->blue_mask;
- while ( !(mask & 0x01) ) { mask >>= 1; blue <<= 1; }
- *pixel = red|green|blue ;
- status = XW_SUCCESS ;
- } else if( pcolormap->mapping == Xw_TOM_COLORCUBE ) {
- int curind = 0;
- if( (_CGINFO.red_mult > 0) && (fabs(r-g) < 0.01) && (fabs(r-b) < 0.01) ) {
- curind = (int)(0.5+r*_CGINFO.red_max)*_CGINFO.red_mult;
- if( _CINFO.red_max > 0 ) curind += (_CINFO.red_max+1)*(_CINFO.green_max+1)*(_CINFO.blue_max+1);
- } else if( _CINFO.red_mult > 0 ) {
- curind = ((int)(0.5+r*_CINFO.red_max))*_CINFO.red_mult+
- ((int)(0.5+g*_CINFO.green_max))*_CINFO.green_mult+
- ((int)(0.5+b*_CINFO.blue_max))*_CINFO.blue_mult;
- } else if( _CGINFO.red_mult > 0 ) {
- float l = (r+g+b)/3.;
- curind = (int)(0.5+l*_CGINFO.red_max)*_CGINFO.red_mult;
- }
- *pixel = _CINFO.base_pixel + curind ;
- if( pcolormap->pixels[curind] == *pixel ) status = XW_SUCCESS ;
- }
-
- if( !status ) {
-
-#ifdef TEST
- if (pcolormap != qcolormap) {
- for (i=0; i<MAX_COLRS; i++) tab_ind[i][0] = -1.;
- qcolormap = pcolormap;
- indice_max = 0;
- indice = 0;
- }
-
- for (i=0; i<indice_max; i++) {
- if (tab_ind[i][0] >= 0.) {
- if ((tab_ind[i][1] == r) &&
- (tab_ind[i][2] == g) &&
- (tab_ind[i][3] == b)) {
- *pixel = (int) tab_ind[i][0];
- status = XW_SUCCESS;
- break;
- }
- }
- }
-#endif
-
- if( !status ) {
- status = Xw_alloc_color(pcolormap,r,g,b,pixel,isapproximate) ;
-
-#ifdef TEST
- if( status ) {
- tab_ind[indice][0] = *pixel ;
- tab_ind[indice][1] = r ;
- tab_ind[indice][2] = g ;
- tab_ind[indice][3] = b ;
- /*
- * Une fois que le tableau est plein, il faut le
- * parcourir completement, donc on ne touche plus
- * a indice_max.
- */
- indice ++ ;
- if( indice < MAX_COLRS ) {
- indice_max = max(indice_max,indice);
- } else {
- indice = 0 ; /* on repart a 0 */
-#ifdef TRACE_GET_COLOR_PIXEL
- if( Xw_get_trace() > 1 ) {
- printf(" ************************\n") ;
- printf(" Xw_get_color_pixel, full array\n") ;
- printf(" ************************\n") ;
- }
-#endif
- }
- }
-#endif
- }
- }
-
-
-#ifdef TRACE_GET_COLOR_PIXEL
-if( Xw_get_trace() > 3 ) {
- printf(" %d = Xw_get_color_pixel(%lx,%f,%f,%f,%lx,%d)\n",
- status,(long ) pcolormap,r,g,b,*pixel,*isapproximate) ;
-}
-#endif
-
- return( status ) ;
-}
projects / occt.git / blobdiff