Moved more GDI definitions to gdi_private.h.
[wine.git] / dlls / x11drv / palette.c
blob98180c26fd7ef653595984249207336cf5f6440c
1 /*
2 * X11DRV OEM bitmap objects
4 * Copyright 1994, 1995 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "config.h"
23 #include <stdlib.h>
24 #include <string.h>
26 #include "gdi.h"
27 #include "windef.h"
28 #include "winreg.h"
29 #include "x11drv.h"
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(palette);
34 /* Palette indexed mode:
35 * logical palette -> mapping -> pixel
38 * Windows needs contiguous color space ( from 0 to n ) but
39 * it is possible only with the private colormap. Otherwise we
40 * have to map DC palette indices to real pixel values. With
41 * private colormaps it boils down to the identity mapping. The
42 * other special case is when we have a fixed color visual with
43 * the screendepth > 8 - we abandon palette mappings altogether
44 * because pixel values can be calculated without X server
45 * assistance.
47 * Windows palette manager is described in the
48 * http://premium.microsoft.com/msdn/library/techart/f30/f34/f40/d4d/sa942.htm
51 static PALETTEENTRY *COLOR_sysPal; /* current system palette */
53 static int COLOR_gapStart = 256;
54 static int COLOR_gapEnd = -1;
55 static int COLOR_gapFilled = 0;
56 static int COLOR_max = 256;
58 Colormap X11DRV_PALETTE_PaletteXColormap = 0;
59 UINT16 X11DRV_PALETTE_PaletteFlags = 0;
61 typedef struct {
62 int shift;
63 int scale;
64 int max;
65 } ColorShifts;
67 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
68 static ColorShifts X11DRV_PALETTE_PRed = {0,0,0};
69 static ColorShifts X11DRV_PALETTE_LRed = {0,0,0};
70 static ColorShifts X11DRV_PALETTE_PGreen = {0,0,0};
71 static ColorShifts X11DRV_PALETTE_LGreen = {0,0,0};
72 static ColorShifts X11DRV_PALETTE_PBlue = {0,0,0};
73 static ColorShifts X11DRV_PALETTE_LBlue = {0,0,0};
74 static int X11DRV_PALETTE_Graymax = 0;
76 static int palette_size;
78 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
79 static int X11DRV_PALETTE_firstFree = 0;
80 static unsigned char X11DRV_PALETTE_freeList[256];
82 /**********************************************************************/
84 /* Map an EGA index (0..15) to a pixel value in the system color space. */
86 int X11DRV_PALETTE_mapEGAPixel[16];
88 /**********************************************************************/
90 #define NB_COLORCUBE_START_INDEX 63
91 #define NB_PALETTE_EMPTY_VALUE -1
93 /* Maps entry in the system palette to X pixel value */
94 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
96 /* Maps pixel to the entry in the system palette */
97 int *X11DRV_PALETTE_XPixelToPalette = NULL;
99 /**********************************************************************/
101 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
102 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
103 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical);
104 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
105 static void X11DRV_PALETTE_FormatSystemPalette(void);
106 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
107 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
110 /***********************************************************************
111 * COLOR_Init
113 * Initialize color management.
115 int X11DRV_PALETTE_Init(void)
117 int mask, white, black;
118 int monoPlane;
119 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
121 TRACE("initializing palette manager...\n");
123 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
124 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
125 monoPlane = 1;
126 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
127 monoPlane++;
128 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
129 palette_size = visual->map_entries;
131 switch(visual->class)
133 case DirectColor:
134 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
135 case GrayScale:
136 case PseudoColor:
138 HKEY hkey;
139 BOOL private_color_map = FALSE;
140 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
142 char buffer[20];
143 DWORD type, count = sizeof(buffer);
144 if(!RegQueryValueExA(hkey, "PrivateColorMap", 0, &type, buffer, &count))
146 char ch = buffer[0];
147 private_color_map = (ch == 'y' || ch == 'Y' || ch == 't' || ch == 'T' || ch == '1');
149 RegCloseKey(hkey);
152 wine_tsx11_lock();
153 if (private_color_map)
155 XSetWindowAttributes win_attr;
157 X11DRV_PALETTE_PaletteXColormap = XCreateColormap( gdi_display, root_window,
158 visual, AllocAll );
159 if (X11DRV_PALETTE_PaletteXColormap)
161 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
163 monoPlane = 1;
164 for( white = palette_size - 1; !(white & 1); white >>= 1 )
165 monoPlane++;
167 if( root_window != DefaultRootWindow(gdi_display) )
169 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
170 XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
173 } else {
174 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
175 visual, AllocNone);
177 wine_tsx11_unlock();
178 break;
181 case StaticGray:
182 wine_tsx11_lock();
183 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
184 visual, AllocNone);
185 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
186 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
187 wine_tsx11_unlock();
188 break;
190 case TrueColor:
191 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
192 case StaticColor: {
193 int *depths,nrofdepths;
194 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
195 * depths 1 and 4
197 wine_tsx11_lock();
198 depths = XListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
199 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
200 monoPlane = 1;
201 for( white = palette_size - 1; !(white & 1); white >>= 1 )
202 monoPlane++;
203 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
204 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
205 visual, AllocNone);
207 else
209 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
210 visual, AllocNone);
211 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
212 X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_PRed, &X11DRV_PALETTE_LRed);
213 X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_PGreen, &X11DRV_PALETTE_LGreen);
214 X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_PBlue, &X11DRV_PALETTE_LBlue);
216 XFree(depths);
217 wine_tsx11_unlock();
218 break;
222 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
224 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
226 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
228 palette_size = 0;
230 else
232 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
233 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
234 else
235 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
237 /* Build free list */
239 if( X11DRV_PALETTE_firstFree != -1 )
240 X11DRV_PALETTE_FormatSystemPalette();
242 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
243 palette_size = visual->map_entries;
246 return palette_size;
249 /***********************************************************************
250 * X11DRV_PALETTE_Cleanup
252 * Free external colors we grabbed in the FillDefaultPalette()
254 void X11DRV_PALETTE_Cleanup(void)
256 if( COLOR_gapFilled )
258 wine_tsx11_lock();
259 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
260 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
261 COLOR_gapFilled, 0);
262 wine_tsx11_unlock();
266 /***********************************************************************
267 * X11DRV_PALETTE_ComputeShifts
269 * Calculate conversion parameters for direct mapped visuals
271 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical)
273 int i;
275 if (maskbits==0)
277 physical->shift=0;
278 physical->scale=0;
279 physical->max=0;
280 to_logical->shift=0;
281 to_logical->scale=0;
282 to_logical->max=0;
283 return;
286 for(i=0;!(maskbits&1);i++)
287 maskbits >>= 1;
289 physical->shift = i;
290 physical->max = maskbits;
292 for(i=0;maskbits!=0;i++)
293 maskbits >>= 1;
294 physical->scale = i;
296 if (physical->scale>8)
298 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
299 * So we adjust the shifts to also normalize the color fields to
300 * the Win32 standard of 8 bits per color.
302 to_logical->shift=physical->shift+(physical->scale-8);
303 to_logical->scale=8;
304 to_logical->max=0xff;
305 } else {
306 to_logical->shift=physical->shift;
307 to_logical->scale=physical->scale;
308 to_logical->max=physical->max;
312 /***********************************************************************
313 * X11DRV_PALETTE_BuildPrivateMap
315 * Allocate colorcells and initialize mapping tables.
317 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
319 /* Private colormap - identity mapping */
321 XColor color;
322 int i;
324 if((COLOR_sysPal = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
325 WARN("Can not allocate system palette\n");
326 return FALSE;
329 TRACE("Building private map - %i palette entries\n", palette_size);
331 /* Allocate system palette colors */
333 wine_tsx11_lock();
334 for( i=0; i < palette_size; i++ )
336 if( i < NB_RESERVED_COLORS/2 )
338 color.red = sys_pal_template[i].peRed * 65535 / 255;
339 color.green = sys_pal_template[i].peGreen * 65535 / 255;
340 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
341 COLOR_sysPal[i] = sys_pal_template[i];
342 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
344 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
346 int j = NB_RESERVED_COLORS + i - palette_size;
347 color.red = sys_pal_template[j].peRed * 65535 / 255;
348 color.green = sys_pal_template[j].peGreen * 65535 / 255;
349 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
350 COLOR_sysPal[i] = sys_pal_template[j];
351 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
354 color.flags = DoRed | DoGreen | DoBlue;
355 color.pixel = i;
356 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
358 /* Set EGA mapping if color is from the first or last eight */
360 if (i < 8)
361 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
362 else if (i >= palette_size - 8 )
363 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
365 wine_tsx11_unlock();
367 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
369 COLOR_gapStart = 256; COLOR_gapEnd = -1;
371 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
373 return FALSE;
376 /***********************************************************************
377 * X11DRV_PALETTE_BuildSharedMap
379 * Allocate colorcells and initialize mapping tables.
381 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
383 XColor color;
384 unsigned long sysPixel[NB_RESERVED_COLORS];
385 unsigned long* pixDynMapping = NULL;
386 unsigned long plane_masks[1];
387 int i, j, warn = 0;
388 int diff, r, g, b, max = 256, bp = 0, wp = 1;
389 int step = 1;
390 int defaultCM_max_copy;
391 Colormap defaultCM;
392 XColor defaultColors[256];
393 HKEY hkey;
395 defaultCM_max_copy = 128;
396 COLOR_max = 256;
398 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
400 char buffer[20];
401 DWORD type, count;
403 count = sizeof(buffer);
404 if(!RegQueryValueExA(hkey, "CopyDefaultColors", 0, &type, buffer, &count))
405 defaultCM_max_copy = atoi(buffer);
407 count = sizeof(buffer);
408 if(!RegQueryValueExA(hkey, "AllocSystemColors", 0, &type, buffer, &count))
409 COLOR_max = atoi(buffer);
411 RegCloseKey(hkey);
414 /* Copy the first bunch of colors out of the default colormap to prevent
415 * colormap flashing as much as possible. We're likely to get the most
416 * important Window Manager colors, etc in the first 128 colors */
417 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
419 for (i = 0; i < defaultCM_max_copy; i++)
420 defaultColors[i].pixel = (long) i;
421 wine_tsx11_lock();
422 XQueryColors(gdi_display, defaultCM, &defaultColors[0], defaultCM_max_copy);
423 for (i = 0; i < defaultCM_max_copy; i++)
424 XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
426 if (COLOR_max > 256) COLOR_max = 256;
427 else if (COLOR_max < 20) COLOR_max = 20;
428 TRACE("%d colors configured.\n", COLOR_max);
430 TRACE("Building shared map - %i palette entries\n", palette_size);
432 /* Be nice and allocate system colors as read-only */
434 for( i = 0; i < NB_RESERVED_COLORS; i++ )
436 color.red = sys_pal_template[i].peRed * 65535 / 255;
437 color.green = sys_pal_template[i].peGreen * 65535 / 255;
438 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
439 color.flags = DoRed | DoGreen | DoBlue;
441 if (!XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
443 XColor best, c;
445 if( !warn++ )
447 WARN("Not enough colors for the full system palette.\n");
449 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
450 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
452 max = (0xffffffff)>>(32 - screen_depth);
453 if( max > 256 )
455 step = max/256;
456 max = 256;
460 /* reinit color (XAllocColor() may change it)
461 * and map to the best shared colorcell */
463 color.red = sys_pal_template[i].peRed * 65535 / 255;
464 color.green = sys_pal_template[i].peGreen * 65535 / 255;
465 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
467 best.pixel = best.red = best.green = best.blue = 0;
468 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
470 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
471 r = (c.red - color.red)>>8;
472 g = (c.green - color.green)>>8;
473 b = (c.blue - color.blue)>>8;
474 r = r*r + g*g + b*b;
475 if( r < diff ) { best = c; diff = r; }
478 if( XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
479 color.pixel = best.pixel;
480 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
483 sysPixel[i] = color.pixel;
485 TRACE("syscolor(%lx) -> pixel %i\n",
486 *(COLORREF*)(sys_pal_template+i), (int)color.pixel);
488 /* Set EGA mapping if color in the first or last eight */
490 if (i < 8)
491 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
492 else if (i >= NB_RESERVED_COLORS - 8 )
493 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
495 wine_tsx11_unlock();
497 /* now allocate changeable set */
499 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
501 int c_min = 0, c_max = palette_size, c_val;
503 TRACE("Dynamic colormap... \n");
505 /* let's become the first client that actually follows
506 * X guidelines and does binary search...
509 if((pixDynMapping = (unsigned long*)HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
510 WARN("Out of memory while building system palette.\n");
511 return FALSE;
514 wine_tsx11_lock();
515 /* comment this out if you want to debug palette init */
516 XGrabServer(gdi_display);
518 while( c_max - c_min > 0 )
520 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
522 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
523 plane_masks, 0, pixDynMapping, c_val) )
524 c_max = c_val - 1;
525 else
527 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
528 c_min = c_val;
532 if( c_min > COLOR_max - NB_RESERVED_COLORS)
533 c_min = COLOR_max - NB_RESERVED_COLORS;
535 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
537 if( c_min > 0 )
538 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
539 plane_masks, 0, pixDynMapping, c_min) )
541 WARN("Inexplicable failure during colorcell allocation.\n");
542 c_min = 0;
545 palette_size = c_min + NB_RESERVED_COLORS;
547 XUngrabServer(gdi_display);
548 wine_tsx11_unlock();
550 TRACE("adjusted size %i colorcells\n", palette_size);
552 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
554 /* virtual colorspace - ToPhysical takes care of
555 * color translations but we have to allocate full palette
556 * to maintain compatibility
558 palette_size = 256;
559 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
561 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
562 * of colors and map to them */
564 TRACE("Shared system palette uses %i colors.\n", palette_size);
566 /* set gap to account for pixel shortage. It has to be right in the center
567 * of the system palette because otherwise raster ops get screwed. */
569 if( palette_size >= 256 )
570 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
571 else
572 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
574 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
575 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
576 ? NB_RESERVED_COLORS/2 : -1;
578 COLOR_sysPal = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
579 if(COLOR_sysPal == NULL) {
580 ERR("Can not allocate system palette!\n");
581 return FALSE;
584 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
586 if (screen_depth <= 8)
588 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
589 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
590 ERR("Out of memory: XPixelToPalette!\n");
591 return FALSE;
593 for( i = 0; i < 256; i++ )
594 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
597 /* for hicolor visuals PaletteToPixel mapping is used to skip
598 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
601 X11DRV_PALETTE_PaletteToXPixel = (int*)HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
602 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
603 ERR("Out of memory: PaletteToXPixel!\n");
604 return FALSE;
607 for( i = j = 0; i < 256; i++ )
609 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
611 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
612 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
613 continue;
616 if( i < NB_RESERVED_COLORS/2 )
618 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
619 COLOR_sysPal[i] = sys_pal_template[i];
620 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
622 else if( i >= 256 - NB_RESERVED_COLORS/2 )
624 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
625 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
626 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
628 else if( pixDynMapping )
629 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
630 else
631 X11DRV_PALETTE_PaletteToXPixel[i] = i;
633 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
635 if( X11DRV_PALETTE_XPixelToPalette )
636 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
639 if( pixDynMapping ) HeapFree(GetProcessHeap(), 0, pixDynMapping);
641 return TRUE;
644 /***********************************************************************
645 * Colormap Initialization
647 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
649 /* initialize unused entries to what Windows uses as a color
650 * cube - based on Greg Kreider's code.
653 int i = 0, idx = 0;
654 int red, no_r, inc_r;
655 int green, no_g, inc_g;
656 int blue, no_b, inc_b;
658 if (palette_size <= NB_RESERVED_COLORS)
659 return;
660 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
661 no_r = no_g = no_b = --i;
662 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
663 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
664 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
665 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
666 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
668 wine_tsx11_lock();
670 idx = X11DRV_PALETTE_firstFree;
672 if( idx != -1 )
673 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
674 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
675 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
677 /* weird but true */
679 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
681 COLOR_sysPal[idx].peRed = red;
682 COLOR_sysPal[idx].peGreen = green;
683 COLOR_sysPal[idx].peBlue = blue;
685 /* set X color */
687 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
689 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
690 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
691 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
693 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
695 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
697 XColor color;
698 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
699 color.red = COLOR_sysPal[idx].peRed << 8;
700 color.green = COLOR_sysPal[idx].peGreen << 8;
701 color.blue = COLOR_sysPal[idx].peBlue << 8;
702 color.flags = DoRed | DoGreen | DoBlue;
703 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
705 idx = X11DRV_PALETTE_freeList[idx];
708 /* try to fill some entries in the "gap" with
709 * what's already in the colormap - they will be
710 * mappable to but not changeable. */
712 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
714 XColor xc;
715 int r, g, b, max;
717 max = COLOR_max - (256 - (COLOR_gapEnd - COLOR_gapStart));
718 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
719 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
721 xc.pixel = i;
723 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
724 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
726 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
727 XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
729 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
730 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
731 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
732 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
733 if( --max <= 0 ) break;
736 COLOR_gapFilled = idx - COLOR_gapStart;
738 wine_tsx11_unlock();
742 /***********************************************************************
743 * X11DRV_IsSolidColor
745 * Check whether 'color' can be represented with a solid color.
747 BOOL X11DRV_IsSolidColor( COLORREF color )
749 int i;
750 const PALETTEENTRY *pEntry = COLOR_sysPal;
752 if (color & 0xff000000) return TRUE; /* indexed color */
754 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
756 for (i = 0; i < 256 ; i++, pEntry++)
758 if( i < COLOR_gapStart || i > COLOR_gapEnd )
759 if ((GetRValue(color) == pEntry->peRed) &&
760 (GetGValue(color) == pEntry->peGreen) &&
761 (GetBValue(color) == pEntry->peBlue)) return TRUE;
763 return FALSE;
767 /***********************************************************************
768 * X11DRV_PALETTE_ToLogical
770 * Return RGB color for given X pixel.
772 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
774 XColor color;
776 #if 0
777 /* truecolor visual */
779 if (screen_depth >= 24) return pixel;
780 #endif
782 /* check for hicolor visuals first */
784 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
786 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
787 if (X11DRV_PALETTE_LRed.scale<8)
788 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
789 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
790 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
791 if (X11DRV_PALETTE_LGreen.scale<8)
792 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
793 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
794 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
795 if (X11DRV_PALETTE_LBlue.scale<8)
796 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
797 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
798 return RGB(color.red,color.green,color.blue);
801 /* check if we can bypass X */
803 if ((screen_depth <= 8) && (pixel < 256) &&
804 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
805 return ( *(COLORREF*)(COLOR_sysPal +
806 ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff;
809 wine_tsx11_lock();
810 color.pixel = pixel;
811 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
812 wine_tsx11_unlock();
813 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
817 /***********************************************************************
818 * X11DRV_SysPaletteLookupPixel
820 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
822 int i, best = 0, diff = 0x7fffffff;
823 int r,g,b;
825 for( i = 0; i < palette_size && diff ; i++ )
827 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
828 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
829 continue;
831 r = COLOR_sysPal[i].peRed - GetRValue(col);
832 g = COLOR_sysPal[i].peGreen - GetGValue(col);
833 b = COLOR_sysPal[i].peBlue - GetBValue(col);
835 r = r*r + g*g + b*b;
837 if( r < diff ) { best = i; diff = r; }
839 return best;
843 /***********************************************************************
844 * X11DRV_PALETTE_ToPhysical
846 * Return the physical color closest to 'color'.
848 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
850 WORD index = 0;
851 HPALETTE hPal = physDev ? GetCurrentObject(physDev->hdc, OBJ_PAL ) : GetStockObject(DEFAULT_PALETTE);
852 unsigned char spec_type = color >> 24;
853 PALETTEOBJ* palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
855 /* palPtr can be NULL when DC is being destroyed */
856 if( !palPtr ) return 0;
858 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
860 /* there is no colormap limitation; we are going to have to compute
861 * the pixel value from the visual information stored earlier
864 unsigned long red, green, blue;
865 unsigned idx = 0;
867 switch(spec_type)
869 case 1: /* PALETTEINDEX */
871 if( (idx = color & 0xffff) >= palPtr->logpalette.palNumEntries)
873 WARN("RGB(%lx) : idx %d is out of bounds, assuming black\n", color, idx);
874 GDI_ReleaseObj( hPal );
875 return 0;
878 if( palPtr->mapping )
880 int ret = palPtr->mapping[idx];
881 GDI_ReleaseObj( hPal );
882 return ret;
884 color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx);
885 break;
887 default:
888 color &= 0xffffff;
889 /* fall through to RGB */
891 case 0: /* RGB */
892 if (physDev && (physDev->depth == 1) )
894 GDI_ReleaseObj( hPal );
895 return (((color >> 16) & 0xff) +
896 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
901 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
903 if (X11DRV_PALETTE_Graymax)
905 /* grayscale only; return scaled value */
906 GDI_ReleaseObj( hPal );
907 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
909 else
911 /* scale each individually and construct the TrueColor pixel value */
912 if (X11DRV_PALETTE_PRed.scale < 8)
913 red = red >> (8-X11DRV_PALETTE_PRed.scale);
914 else if (X11DRV_PALETTE_PRed.scale > 8)
915 red = red << (X11DRV_PALETTE_PRed.scale-8) |
916 red >> (16-X11DRV_PALETTE_PRed.scale);
917 if (X11DRV_PALETTE_PGreen.scale < 8)
918 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
919 else if (X11DRV_PALETTE_PGreen.scale > 8)
920 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
921 green >> (16-X11DRV_PALETTE_PGreen.scale);
922 if (X11DRV_PALETTE_PBlue.scale < 8)
923 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
924 else if (X11DRV_PALETTE_PBlue.scale > 8)
925 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
926 blue >> (16-X11DRV_PALETTE_PBlue.scale);
928 GDI_ReleaseObj( hPal );
929 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
932 else
935 if( !palPtr->mapping )
936 WARN("Palette %p is not realized\n", hPal);
938 switch(spec_type) /* we have to peruse DC and system palette */
940 default:
941 color &= 0xffffff;
942 /* fall through to RGB */
944 case 0: /* RGB */
945 if (physDev && (physDev->depth == 1) )
947 GDI_ReleaseObj( hPal );
948 return (((color >> 16) & 0xff) +
949 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
952 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
953 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
955 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
957 break;
958 case 1: /* PALETTEINDEX */
959 index = color & 0xffff;
961 if( index >= palPtr->logpalette.palNumEntries )
962 WARN("RGB(%lx) : index %i is out of bounds\n", color, index);
963 else if( palPtr->mapping ) index = palPtr->mapping[index];
965 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
967 break;
968 case 2: /* PALETTERGB */
969 index = GetNearestPaletteIndex( hPal, color );
970 if (palPtr->mapping) index = palPtr->mapping[index];
971 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
973 break;
977 GDI_ReleaseObj( hPal );
978 return index;
981 /***********************************************************************
982 * X11DRV_PALETTE_LookupSystemXPixel
984 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
986 int i, best = 0, diff = 0x7fffffff;
987 int size = palette_size;
988 int r,g,b;
990 for( i = 0; i < size && diff ; i++ )
992 if( i == NB_RESERVED_COLORS/2 )
994 int newi = size - NB_RESERVED_COLORS/2;
995 if (newi>i) i=newi;
998 r = COLOR_sysPal[i].peRed - GetRValue(col);
999 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1000 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1002 r = r*r + g*g + b*b;
1004 if( r < diff ) { best = i; diff = r; }
1007 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1010 /***********************************************************************
1011 * X11DRV_PALETTE_FormatSystemPalette
1013 static void X11DRV_PALETTE_FormatSystemPalette(void)
1015 /* Build free list so we'd have an easy way to find
1016 * out if there are any available colorcells.
1019 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1021 COLOR_sysPal[j].peFlags = 0;
1022 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1023 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1025 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1026 X11DRV_PALETTE_freeList[j] = i; /* next */
1027 j = i;
1029 X11DRV_PALETTE_freeList[j] = 0;
1032 /***********************************************************************
1033 * X11DRV_PALETTE_CheckSysColor
1035 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1037 int i;
1038 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1039 if( c == (*(COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1040 return 0;
1041 return 1;
1045 /***********************************************************************
1046 * X11DRV_LookupSysPaletteExact
1048 static int X11DRV_LookupSysPaletteExact( COLORREF col )
1050 int i;
1051 BYTE r = GetRValue(col), g = GetGValue(col), b = GetBValue(col);
1052 for( i = 0; i < palette_size; i++ )
1054 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1055 if( COLOR_sysPal[i].peRed == r &&
1056 COLOR_sysPal[i].peGreen == g &&
1057 COLOR_sysPal[i].peBlue == b )
1058 return i;
1060 return -1;
1064 /***********************************************************************
1065 * X11DRV_PALETTE_SetMapping
1067 * Set the color-mapping table for selected palette.
1068 * Return number of entries which mapping has changed.
1070 static UINT X11DRV_PALETTE_SetMapping( PALETTEOBJ* palPtr, UINT uStart, UINT uNum, BOOL mapOnly )
1072 char flag;
1073 int prevMapping = (palPtr->mapping) ? 1 : 0;
1074 int index;
1075 UINT iRemapped = 0;
1076 int* mapping;
1078 /* reset dynamic system palette entries */
1080 if( !mapOnly && X11DRV_PALETTE_firstFree != -1)
1081 X11DRV_PALETTE_FormatSystemPalette();
1083 /* initialize palette mapping table */
1084 if (palPtr->mapping)
1085 mapping = HeapReAlloc( GetProcessHeap(), 0, palPtr->mapping,
1086 sizeof(int)*palPtr->logpalette.palNumEntries);
1087 else
1088 mapping = HeapAlloc( GetProcessHeap(), 0,
1089 sizeof(int)*palPtr->logpalette.palNumEntries);
1091 if(mapping == NULL) {
1092 ERR("Can not allocate new mapping -- memory exausted!\n");
1093 return 0;
1095 palPtr->mapping = mapping;
1097 if (uStart >= palPtr->logpalette.palNumEntries) return 0;
1099 if (uStart + uNum > palPtr->logpalette.palNumEntries)
1100 uNum = palPtr->logpalette.palNumEntries - uStart;
1102 for( uNum += uStart; uStart < uNum; uStart++ )
1104 index = -1;
1105 flag = PC_SYS_USED;
1107 switch( palPtr->logpalette.palPalEntry[uStart].peFlags & 0x07 )
1109 case PC_EXPLICIT: /* palette entries are indices into system palette */
1110 index = *(WORD*)(palPtr->logpalette.palPalEntry + uStart);
1111 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1113 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1114 index = 0;
1116 break;
1118 case PC_RESERVED: /* forbid future mappings to this entry */
1119 flag |= PC_SYS_RESERVED;
1121 /* fall through */
1122 default: /* try to collapse identical colors */
1123 index = X11DRV_LookupSysPaletteExact(*(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1124 /* fall through */
1125 case PC_NOCOLLAPSE:
1126 if( index < 0 )
1128 if( X11DRV_PALETTE_firstFree > 0 && !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
1130 XColor color;
1131 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1132 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1134 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1135 color.red = palPtr->logpalette.palPalEntry[uStart].peRed << 8;
1136 color.green = palPtr->logpalette.palPalEntry[uStart].peGreen << 8;
1137 color.blue = palPtr->logpalette.palPalEntry[uStart].peBlue << 8;
1138 color.flags = DoRed | DoGreen | DoBlue;
1139 wine_tsx11_lock();
1140 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1141 wine_tsx11_unlock();
1143 COLOR_sysPal[index] = palPtr->logpalette.palPalEntry[uStart];
1144 COLOR_sysPal[index].peFlags = flag;
1145 X11DRV_PALETTE_freeList[index] = 0;
1147 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1148 break;
1150 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1152 index = X11DRV_PALETTE_ToPhysical( NULL, 0x00ffffff &
1153 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1154 break;
1157 /* we have to map to existing entry in the system palette */
1159 index = X11DRV_SysPaletteLookupPixel( *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), TRUE);
1161 palPtr->logpalette.palPalEntry[uStart].peFlags |= PC_SYS_USED;
1163 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1164 break;
1167 if( !prevMapping || palPtr->mapping[uStart] != index ) iRemapped++;
1168 palPtr->mapping[uStart] = index;
1170 TRACE("entry %i (%lx) -> pixel %i\n", uStart,
1171 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), index);
1174 return iRemapped;
1177 /***********************************************************************
1178 * GetSystemPaletteEntries (X11DRV.@)
1180 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1181 LPPALETTEENTRY entries )
1183 UINT i;
1185 if (!entries) return palette_size;
1186 if (start >= palette_size) return 0;
1187 if (start + count >= palette_size) count = palette_size - start;
1189 for (i = 0; i < count; i++)
1191 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1192 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1193 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1194 entries[i].peFlags = 0;
1195 TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
1197 return count;
1201 /***********************************************************************
1202 * GetNearestColor (X11DRV.@)
1204 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1206 unsigned char spec_type = color >> 24;
1207 COLORREF nearest;
1209 if (!palette_size) return color;
1211 if (spec_type == 1 || spec_type == 2)
1213 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1215 UINT index;
1216 PALETTEENTRY entry;
1217 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1219 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1221 if (spec_type == 2) /* PALETTERGB */
1222 index = GetNearestPaletteIndex( hpal, color );
1223 else /* PALETTEINDEX */
1224 index = LOWORD(color);
1226 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1228 WARN("RGB(%lx) : idx %d is out of bounds, assuming NULL\n", color, index );
1229 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1231 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1233 color &= 0x00ffffff;
1234 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1236 TRACE("(%06lx): returning %06lx\n", color, nearest );
1237 return nearest;
1241 /***********************************************************************
1242 * RealizePalette (X11DRV.@)
1244 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1246 UINT ret;
1247 PALETTEOBJ *palPtr;
1249 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1251 if (!(palPtr = GDI_GetObjPtr( hpal, PALETTE_MAGIC ))) return 0;
1252 ret = X11DRV_PALETTE_SetMapping( palPtr, 0, palPtr->logpalette.palNumEntries, !primary );
1253 GDI_ReleaseObj( hpal );
1254 return ret;
1258 /***********************************************************************
1259 * RealizeDefaultPalette (X11DRV.@)
1261 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1263 UINT ret = 0;
1265 if (palette_size && GetObjectType(physDev->hdc) != OBJ_MEMDC)
1267 PALETTEOBJ* palPtr = GDI_GetObjPtr( GetStockObject(DEFAULT_PALETTE), PALETTE_MAGIC );
1268 if (palPtr)
1270 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1271 int i, index;
1273 for( i = 0; i < 20; i++ )
1275 index = X11DRV_PALETTE_LookupSystemXPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
1276 /* mapping is allocated in COLOR_InitPalette() */
1277 if( index != palPtr->mapping[i] )
1279 palPtr->mapping[i]=index;
1280 ret++;
1283 GDI_ReleaseObj( GetStockObject(DEFAULT_PALETTE) );
1286 return ret;