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/************************************************************************/
/* Color mangement on X11: Try to get around the limitations. */
/************************************************************************/
# include "appFrameConfig.h"
# include <stddef.h>
# include <stdio.h>
# include <stdlib.h>
# define y0 math_y0
# define y1 math_y1
# include <math.h>
# undef y0
# undef y1
# include "appDraw.h"
# include <appDebugon.h>
# ifdef USE_GTK
/************************************************************************/
/* */
/* Allocate approximate colors. */
/* */
/************************************************************************/
/***/
static int appColorAllocSystemColor( AllocatorColor * acRes,
const AllocatorColor * acScratch,
AppColors * acSys )
{
APP_COLOR_RGB xc;
xc.red= acScratch->acRed;
xc.green= acScratch->acGreen;
xc.blue= acScratch->acBlue;
if ( ! gdk_color_alloc( acSys->acColormap, &xc ) )
{ LDEB(1); return -1; }
acRes->acAllocated= AC_ALLOCATED;
acRes->acRed= xc.red;
acRes->acGreen= xc.green;
acRes->acBlue= xc.blue;
acRes->acColorNumber= xc.pixel;
return 0;
}
static int appColorRgb111( AllocatorColor * ac,
ColorAllocator * ca,
unsigned int r,
unsigned int g,
unsigned int b )
{
AllocatorColor acScratch;
AllocatorColor * acRes;
bmColorRgbDirect( &acScratch, ca, r, g, b );
acRes= &(ca->ca222Colors[acScratch.acColorNumber]);
if ( acRes->acAllocated == AC_UNALLOCATED )
{
AppColors * acSys= (AppColors *)ca->caSystemPrivate;
if ( appColorAllocSystemColor( acRes, &acScratch, acSys ) )
{ LDEB(acScratch.acColorNumber); return -1; }
}
*ac= *acRes;
ac->acAllocated= AC_COPIED;
return 0;
}
static int appColorRgb222( AllocatorColor * ac,
ColorAllocator * ca,
unsigned int r,
unsigned int g,
unsigned int b )
{
AllocatorColor acScratch;
AllocatorColor * acRes;
bmColorRgbDirect( &acScratch, ca, r, g, b );
acRes= &(ca->ca222Colors[acScratch.acColorNumber]);
if ( acRes->acAllocated == AC_UNALLOCATED )
{
AppColors * acSys= (AppColors *)ca->caSystemPrivate;
if ( appColorAllocSystemColor( acRes, &acScratch, acSys ) )
{ LDEB(acScratch.acColorNumber); return -1; }
}
*ac= *acRes;
ac->acAllocated= AC_COPIED;
return 0;
}
static int appColorRgb555( AllocatorColor * ac,
ColorAllocator * ca,
unsigned int r,
unsigned int g,
unsigned int b )
{
AllocatorColor acScratch;
AllocatorColor * acRes;
bmColorRgbDirect( &acScratch, ca, r, g, b );
acRes= &(ca->caColors[acScratch.acColorNumber]);
if ( acRes->acAllocated == AC_UNALLOCATED )
{
AppColors * acSys= (AppColors *)ca->caSystemPrivate;
if ( appColorAllocSystemColor( acRes, &acScratch, acSys ) )
{
if ( bmFindNearestColorRgb( ac, ca, r, g, b ) )
{ LDEB(1); return -1; }
return 0;
}
}
*ac= *acRes;
ac->acAllocated= AC_COPIED;
return 0;
}
static int appColorRgb332( AllocatorColor * ac,
ColorAllocator * ca,
unsigned int r,
unsigned int g,
unsigned int b )
{
AllocatorColor acScratch;
AllocatorColor * acRes;
bmColorRgbDirect( &acScratch, ca, r, g, b );
acRes= &(ca->caColors[acScratch.acColorNumber]);
if ( acRes->acAllocated == AC_UNALLOCATED )
{
AppColors * acSys= (AppColors *)ca->caSystemPrivate;
if ( appColorAllocSystemColor( acRes, &acScratch, acSys ) )
{
if ( bmFindNearestColorRgb( ac, ca, r, g, b ) )
{ LDEB(1); return -1; }
return 0;
}
}
*ac= *acRes;
ac->acAllocated= AC_COPIED;
return 0;
}
int appColorRgb( APP_COLOR_RGB * xc,
AppColors * acSys,
unsigned int r,
unsigned int g,
unsigned int b )
{
AllocatorColor ac;
ColorAllocator * ca= &(acSys->acAllocator);
if ( acSys->acVisualClass == GDK_VISUAL_TRUE_COLOR ||
acSys->acVisualClass == GDK_VISUAL_DIRECT_COLOR )
{
bmColorRgbDirect( &ac, ca, r, g, b );
}
else{
if ( ! ca->caSystemAllocator )
{ XDEB(ca->caSystemAllocator); return -1; }
if ( (*ca->caSystemAllocator)( &ac, ca, r, g, b ) )
{ LLLDEB(r,g,b); return -1; }
}
xc->red= ac.acRed;
xc->green= ac.acGreen;
xc->blue= ac.acBlue;
xc->pixel= ac.acColorNumber;
return 0;
}
int appColorNamed( APP_COLOR_RGB * xc,
AppColors * acSys,
const char * name )
{
APP_COLOR_RGB exact;
if ( ! gdk_color_parse( name, &exact ) )
{ SDEB(name); return -1; }
return appColorRgb( xc, acSys,
exact.red/257, exact.green/257, exact.blue/257 );
}
int appAllocateColors( AppDrawingData * add,
AppColors * acSys )
{
GdkVisual * vis= gdk_visual_get_system();
GdkColormap * cmap= gdk_colormap_get_system();
int count;
ColorAllocator * ca= &(acSys->acAllocator);
acSys->acColormap= cmap;
acSys->acVisualClass= vis->type;
ca->caSystemPrivate= acSys;
ca->caDepth= vis->depth;
switch( acSys->acVisualClass )
{
case GDK_VISUAL_STATIC_GRAY:
case GDK_VISUAL_GRAYSCALE:
ca->caAllocationType= CA_INDEX_ALLOC;
switch( ca->caDepth )
{
case 1: case 2: case 4: case 8:
break;
default:
LLDEB(acSys->acVisualClass,ca->caDepth);
}
break;
case GDK_VISUAL_STATIC_COLOR:
ca->caAllocationType= CA_INDEX_ALLOC;
break;
case GDK_VISUAL_PSEUDO_COLOR:
ca->caAllocationType= CA_INDEX_ALLOC;
break;
case GDK_VISUAL_TRUE_COLOR:
case GDK_VISUAL_DIRECT_COLOR:
ca->caAllocationType= CA_CALCULATED;
bmSetCalculatedShifts( ca, vis->red_mask,
vis->green_mask, vis->blue_mask );
return 0;
}
switch( ca->caDepth )
{
case 1:
count= 2;
ca->caSystemAllocator= appColorRgb111;
bmSetCalculatedShifts( ca, 0x0004, 0x0002, 0x0001 );
break;
case 2:
count= 4;
ca->caSystemAllocator= appColorRgb111;
bmSetCalculatedShifts( ca, 0x0004, 0x0002, 0x0001 );
break;
case 4:
count= 16;
ca->caSystemAllocator= appColorRgb222;
bmSetCalculatedShifts( ca, 0x0030, 0x000c, 0x0003 );
break;
case 8:
count= 256;
ca->caSystemAllocator= appColorRgb332;
bmSetCalculatedShifts( ca, 0x00e0, 0x001c, 0x0003 );
break;
case 16:
count= 256* 256;
ca->caSystemAllocator= appColorRgb555;
bmSetCalculatedShifts( ca, 0x7c00, 0x03e0, 0x001f );
break;
case 24:
case 32:
return 0;
default:
LDEB(vis->depth); return -1;
}
if ( bmAllocateAllocatorColors( ca, count ) )
{ LDEB(count); return -1; }
return 0;
}
void appCleanColors( AppColors * acSys )
{
int i;
GdkColormap * cmap= acSys->acColormap;
ColorAllocator * ca= &(acSys->acAllocator);
for ( i= 0; i < 64; i++ )
{
if ( ca->ca222Colors[i].acAllocated == AC_ALLOCATED )
{
gulong pix= ca->ca222Colors[i].acColorNumber;
gdk_colors_free( cmap, &pix, 1, 0L );
ca->ca222Colors[i].acAllocated= AC_UNALLOCATED;
}
}
for ( i= 0; i < ca->caColorCount; i++ )
{
if ( ca->caColors[i].acAllocated == AC_ALLOCATED )
{
gulong pix= ca->caColors[i].acColorNumber;
gdk_colors_free( cmap, &pix, 1, 0L );
ca->caColors[i].acAllocated= AC_UNALLOCATED;
}
}
bmCleanColorAllocator( ca );
}
void appInitColors( AppColors * acSys )
{
ColorAllocator * ca= &(acSys->acAllocator);
bmInitColorAllocator( ca );
acSys->acColormap= (GdkColormap *)0;
}
int appColorFindRgb( APP_COLOR_RGB * xc,
AppColors * acSys,
unsigned int r,
unsigned int g,
unsigned int b )
{
ColorAllocator * ca= &(acSys->acAllocator);
AllocatorColor acRet;
if ( bmFindNearestColorRgb( &acRet, ca, r, g, b ) )
{ return -1; }
xc->red= acRet.acRed;
xc->green= acRet.acGreen;
xc->blue= acRet.acBlue;
xc->pixel= acRet.acColorNumber;
return 0;
}
# endif
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