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- change the internal functions in windows/cursoricon.c to use 32bit
[wine/multimedia.git] / graphics / x11drv / palette.c
blob05345c631ddd9c0bab3a67202bc91c6c5b5924c1
1 /*
2 * X11DRV OEM bitmap objects
3 *
4 * Copyright 1994, 1995 Alexandre Julliard
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include "config.h"
22
23 #include "ts_xlib.h"
24
25 #include <stdlib.h>
26 #include <string.h>
27
28 #include "gdi.h"
29 #include "palette.h"
30 #include "windef.h"
31 #include "winreg.h"
32 #include "x11drv.h"
33 #include "wine/debug.h"
34
35 WINE_DEFAULT_DEBUG_CHANNEL(palette);
36
37 /* Palette indexed mode:
38 * logical palette -> mapping -> pixel
39 *
40 *
41 * Windows needs contiguous color space ( from 0 to n ) but
42 * it is possible only with the private colormap. Otherwise we
43 * have to map DC palette indices to real pixel values. With
44 * private colormaps it boils down to the identity mapping. The
45 * other special case is when we have a fixed color visual with
46 * the screendepth > 8 - we abandon palette mappings altogether
47 * because pixel values can be calculated without X server
48 * assistance.
49 *
50 * Windows palette manager is described in the
51 * http://premium.microsoft.com/msdn/library/techart/f30/f34/f40/d4d/sa942.htm
52 */
53
54 static PALETTEENTRY *COLOR_sysPal; /* current system palette */
55
56 static int COLOR_gapStart = 256;
57 static int COLOR_gapEnd = -1;
58 static int COLOR_gapFilled = 0;
59 static int COLOR_max = 256;
60
61 Colormap X11DRV_PALETTE_PaletteXColormap = 0;
62 UINT16 X11DRV_PALETTE_PaletteFlags = 0;
63
64 typedef struct {
65 int shift;
66 int scale;
67 int max;
68 } ColorShifts;
69
70 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
71 static ColorShifts X11DRV_PALETTE_PRed = {0,0,0};
72 static ColorShifts X11DRV_PALETTE_LRed = {0,0,0};
73 static ColorShifts X11DRV_PALETTE_PGreen = {0,0,0};
74 static ColorShifts X11DRV_PALETTE_LGreen = {0,0,0};
75 static ColorShifts X11DRV_PALETTE_PBlue = {0,0,0};
76 static ColorShifts X11DRV_PALETTE_LBlue = {0,0,0};
77 static int X11DRV_PALETTE_Graymax = 0;
78
79 static int palette_size;
80
81 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
82 static int X11DRV_PALETTE_firstFree = 0;
83 static unsigned char X11DRV_PALETTE_freeList[256];
84
85 /**********************************************************************/
86
87 /* Map an EGA index (0..15) to a pixel value in the system color space. */
88
89 int X11DRV_PALETTE_mapEGAPixel[16];
90
91 /**********************************************************************/
92
93 #define NB_COLORCUBE_START_INDEX 63
94 #define NB_PALETTE_EMPTY_VALUE -1
95
96 /* Maps entry in the system palette to X pixel value */
97 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
98
99 /* Maps pixel to the entry in the system palette */
100 int *X11DRV_PALETTE_XPixelToPalette = NULL;
101
102 /**********************************************************************/
103
104 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
105 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
106 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical);
107 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
108 static void X11DRV_PALETTE_FormatSystemPalette(void);
109 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
110 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
111
112
113 /***********************************************************************
114 * COLOR_Init
115 *
116 * Initialize color management.
117 */
118 int X11DRV_PALETTE_Init(void)
119 {
120 int mask, white, black;
121 int monoPlane;
122 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
123
124 TRACE("initializing palette manager...\n");
125
126 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
127 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
128 monoPlane = 1;
129 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
130 monoPlane++;
131 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
132 palette_size = visual->map_entries;
133
134 switch(visual->class)
135 {
136 case DirectColor:
137 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
138 case GrayScale:
139 case PseudoColor:
140 {
141 HKEY hkey;
142 BOOL private_color_map = FALSE;
143 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
144 {
145 char buffer[20];
146 DWORD type, count = sizeof(buffer);
147 if(!RegQueryValueExA(hkey, "PrivateColorMap", 0, &type, buffer, &count))
148 {
149 char ch = buffer[0];
150 private_color_map = (ch == 'y' || ch == 'Y' || ch == 't' || ch == 'T' || ch == '1');
151 }
152 RegCloseKey(hkey);
153 }
154
155 if (private_color_map)
156 {
157 XSetWindowAttributes win_attr;
158
159 X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap( gdi_display, root_window,
160 visual, AllocAll );
161 if (X11DRV_PALETTE_PaletteXColormap)
162 {
163 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
164
165 monoPlane = 1;
166 for( white = palette_size - 1; !(white & 1); white >>= 1 )
167 monoPlane++;
168
169 if( root_window != DefaultRootWindow(gdi_display) )
170 {
171 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
172 TSXChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
173 }
174 break;
175 }
176 }
177 X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap(gdi_display, root_window,
178 visual, AllocNone);
179 break;
180 }
181
182 case StaticGray:
183 X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap(gdi_display, root_window,
184 visual, AllocNone);
185 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
186 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
187 break;
188
189 case TrueColor:
190 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
191 case StaticColor: {
192 int *depths,nrofdepths;
193 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
194 * depths 1 and 4
195 */
196 depths=TSXListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
197 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
198 monoPlane = 1;
199 for( white = palette_size - 1; !(white & 1); white >>= 1 )
200 monoPlane++;
201 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
202 X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap(gdi_display, root_window,
203 visual, AllocNone);
204 TSXFree(depths);
205 break;
206 }
207 TSXFree(depths);
208 X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap(gdi_display, root_window,
209 visual, AllocNone);
210 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
211 X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_PRed, &X11DRV_PALETTE_LRed);
212 X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_PGreen, &X11DRV_PALETTE_LGreen);
213 X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_PBlue, &X11DRV_PALETTE_LBlue);
214 break;
215 }
216 }
217
218 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
219
220 memset(X11DRV_PALETTE_freeList, 0, 256*sizeof(unsigned char));
221
222 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
223
224 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
225 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
226 else
227 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
228
229 /* Build free list */
230
231 if( X11DRV_PALETTE_firstFree != -1 )
232 X11DRV_PALETTE_FormatSystemPalette();
233
234 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
235
236 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
237 palette_size = 0;
238 else
239 palette_size = visual->map_entries;
240
241 return palette_size;
242 }
243
244 /***********************************************************************
245 * X11DRV_PALETTE_Cleanup
246 *
247 * Free external colors we grabbed in the FillDefaultPalette()
248 */
249 void X11DRV_PALETTE_Cleanup(void)
250 {
251 if( COLOR_gapFilled )
252 TSXFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
253 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
254 COLOR_gapFilled, 0);
255 }
256
257 /***********************************************************************
258 * X11DRV_PALETTE_ComputeShifts
259 *
260 * Calculate conversion parameters for direct mapped visuals
261 */
262 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical)
263 {
264 int i;
265
266 if (maskbits==0)
267 {
268 physical->shift=0;
269 physical->scale=0;
270 physical->max=0;
271 to_logical->shift=0;
272 to_logical->scale=0;
273 to_logical->max=0;
274 return;
275 }
276
277 for(i=0;!(maskbits&1);i++)
278 maskbits >>= 1;
279
280 physical->shift = i;
281 physical->max = maskbits;
282
283 for(i=0;maskbits!=0;i++)
284 maskbits >>= 1;
285 physical->scale = i;
286
287 if (physical->scale>8)
288 {
289 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
290 * So we adjust the shifts to also normalize the color fields to
291 * the Win32 standard of 8 bits per color.
292 */
293 to_logical->shift=physical->shift+(physical->scale-8);
294 to_logical->scale=8;
295 to_logical->max=0xff;
296 } else {
297 to_logical->shift=physical->shift;
298 to_logical->scale=physical->scale;
299 to_logical->max=physical->max;
300 }
301 }
302
303 /***********************************************************************
304 * X11DRV_PALETTE_BuildPrivateMap
305 *
306 * Allocate colorcells and initialize mapping tables.
307 */
308 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
309 {
310 /* Private colormap - identity mapping */
311
312 XColor color;
313 int i;
314
315 if((COLOR_sysPal = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
316 WARN("Can not allocate system palette\n");
317 return FALSE;
318 }
319
320 TRACE("Building private map - %i palette entries\n", palette_size);
321
322 /* Allocate system palette colors */
323
324 for( i=0; i < palette_size; i++ )
325 {
326 if( i < NB_RESERVED_COLORS/2 )
327 {
328 color.red = sys_pal_template[i].peRed * 65535 / 255;
329 color.green = sys_pal_template[i].peGreen * 65535 / 255;
330 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
331 COLOR_sysPal[i] = sys_pal_template[i];
332 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
333 }
334 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
335 {
336 int j = NB_RESERVED_COLORS + i - palette_size;
337 color.red = sys_pal_template[j].peRed * 65535 / 255;
338 color.green = sys_pal_template[j].peGreen * 65535 / 255;
339 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
340 COLOR_sysPal[i] = sys_pal_template[j];
341 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
342 }
343
344 color.flags = DoRed | DoGreen | DoBlue;
345 color.pixel = i;
346 TSXStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
347
348 /* Set EGA mapping if color is from the first or last eight */
349
350 if (i < 8)
351 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
352 else if (i >= palette_size - 8 )
353 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
354 }
355
356 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
357
358 COLOR_gapStart = 256; COLOR_gapEnd = -1;
359
360 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
361
362 return FALSE;
363 }
364
365 /***********************************************************************
366 * X11DRV_PALETTE_BuildSharedMap
367 *
368 * Allocate colorcells and initialize mapping tables.
369 */
370 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
371 {
372 XColor color;
373 unsigned long sysPixel[NB_RESERVED_COLORS];
374 unsigned long* pixDynMapping = NULL;
375 unsigned long plane_masks[1];
376 int i, j, warn = 0;
377 int diff, r, g, b, max = 256, bp = 0, wp = 1;
378 int step = 1;
379 int defaultCM_max_copy;
380 Colormap defaultCM;
381 XColor defaultColors[256];
382 HKEY hkey;
383
384 defaultCM_max_copy = 128;
385 COLOR_max = 256;
386
387 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
388 {
389 char buffer[20];
390 DWORD type, count;
391
392 count = sizeof(buffer);
393 if(!RegQueryValueExA(hkey, "CopyDefaultColors", 0, &type, buffer, &count))
394 defaultCM_max_copy = atoi(buffer);
395
396 count = sizeof(buffer);
397 if(!RegQueryValueExA(hkey, "AllocSystemColors", 0, &type, buffer, &count))
398 COLOR_max = atoi(buffer);
399
400 RegCloseKey(hkey);
401 }
402
403 /* Copy the first bunch of colors out of the default colormap to prevent
404 * colormap flashing as much as possible. We're likely to get the most
405 * important Window Manager colors, etc in the first 128 colors */
406 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
407
408 for (i = 0; i < defaultCM_max_copy; i++)
409 defaultColors[i].pixel = (long) i;
410 TSXQueryColors(gdi_display, defaultCM, &defaultColors[0], defaultCM_max_copy);
411 for (i = 0; i < defaultCM_max_copy; i++)
412 TSXAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
413
414 if (COLOR_max > 256) COLOR_max = 256;
415 else if (COLOR_max < 20) COLOR_max = 20;
416 TRACE("%d colors configured.\n", COLOR_max);
417
418 TRACE("Building shared map - %i palette entries\n", palette_size);
419
420 /* Be nice and allocate system colors as read-only */
421
422 for( i = 0; i < NB_RESERVED_COLORS; i++ )
423 {
424 color.red = sys_pal_template[i].peRed * 65535 / 255;
425 color.green = sys_pal_template[i].peGreen * 65535 / 255;
426 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
427 color.flags = DoRed | DoGreen | DoBlue;
428
429 if (!TSXAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
430 {
431 XColor best, c;
432
433 if( !warn++ )
434 {
435 WARN("Not enough colors for the full system palette.\n");
436
437 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
438 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
439
440 max = (0xffffffff)>>(32 - screen_depth);
441 if( max > 256 )
442 {
443 step = max/256;
444 max = 256;
445 }
446 }
447
448 /* reinit color (XAllocColor() may change it)
449 * and map to the best shared colorcell */
450
451 color.red = sys_pal_template[i].peRed * 65535 / 255;
452 color.green = sys_pal_template[i].peGreen * 65535 / 255;
453 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
454
455 best.pixel = best.red = best.green = best.blue = 0;
456 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
457 {
458 TSXQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
459 r = (c.red - color.red)>>8;
460 g = (c.green - color.green)>>8;
461 b = (c.blue - color.blue)>>8;
462 r = r*r + g*g + b*b;
463 if( r < diff ) { best = c; diff = r; }
464 }
465
466 if( TSXAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
467 color.pixel = best.pixel;
468 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
469 }
470
471 sysPixel[i] = color.pixel;
472
473 TRACE("syscolor(%lx) -> pixel %i\n",
474 *(COLORREF*)(sys_pal_template+i), (int)color.pixel);
475
476 /* Set EGA mapping if color in the first or last eight */
477
478 if (i < 8)
479 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
480 else if (i >= NB_RESERVED_COLORS - 8 )
481 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
482 }
483
484 /* now allocate changeable set */
485
486 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
487 {
488 int c_min = 0, c_max = palette_size, c_val;
489
490 TRACE("Dynamic colormap... \n");
491
492 /* let's become the first client that actually follows
493 * X guidelines and does binary search...
494 */
495
496 if((pixDynMapping = (unsigned long*)HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
497 WARN("Out of memory while building system palette.\n");
498 return FALSE;
499 }
500
501 /* comment this out if you want to debug palette init */
502 TSXGrabServer(gdi_display);
503
504 while( c_max - c_min > 0 )
505 {
506 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
507
508 if( !TSXAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
509 plane_masks, 0, pixDynMapping, c_val) )
510 c_max = c_val - 1;
511 else
512 {
513 TSXFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
514 c_min = c_val;
515 }
516 }
517
518 if( c_min > COLOR_max - NB_RESERVED_COLORS)
519 c_min = COLOR_max - NB_RESERVED_COLORS;
520
521 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
522
523 if( c_min > 0 )
524 if( !TSXAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
525 plane_masks, 0, pixDynMapping, c_min) )
526 {
527 WARN("Inexplicable failure during colorcell allocation.\n");
528 c_min = 0;
529 }
530
531 palette_size = c_min + NB_RESERVED_COLORS;
532
533 TSXUngrabServer(gdi_display);
534
535 TRACE("adjusted size %i colorcells\n", palette_size);
536 }
537 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
538 {
539 /* virtual colorspace - ToPhysical takes care of
540 * color translations but we have to allocate full palette
541 * to maintain compatibility
542 */
543 palette_size = 256;
544 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
545 }
546 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
547 * of colors and map to them */
548
549 TRACE("Shared system palette uses %i colors.\n", palette_size);
550
551 /* set gap to account for pixel shortage. It has to be right in the center
552 * of the system palette because otherwise raster ops get screwed. */
553
554 if( palette_size >= 256 )
555 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
556 else
557 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
558
559 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
560 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
561 ? NB_RESERVED_COLORS/2 : -1;
562
563 COLOR_sysPal = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
564 if(COLOR_sysPal == NULL) {
565 ERR("Can not allocate system palette!\n");
566 return FALSE;
567 }
568
569 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
570
571 if (screen_depth <= 8)
572 {
573 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
574 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
575 ERR("Out of memory: XPixelToPalette!\n");
576 return FALSE;
577 }
578 for( i = 0; i < 256; i++ )
579 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
580 }
581
582 /* for hicolor visuals PaletteToPixel mapping is used to skip
583 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
584 */
585
586 X11DRV_PALETTE_PaletteToXPixel = (int*)HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
587 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
588 ERR("Out of memory: PaletteToXPixel!\n");
589 return FALSE;
590 }
591
592 for( i = j = 0; i < 256; i++ )
593 {
594 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
595 {
596 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
597 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
598 continue;
599 }
600
601 if( i < NB_RESERVED_COLORS/2 )
602 {
603 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
604 COLOR_sysPal[i] = sys_pal_template[i];
605 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
606 }
607 else if( i >= 256 - NB_RESERVED_COLORS/2 )
608 {
609 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
610 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
611 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
612 }
613 else if( pixDynMapping )
614 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
615 else
616 X11DRV_PALETTE_PaletteToXPixel[i] = i;
617
618 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
619
620 if( X11DRV_PALETTE_XPixelToPalette )
621 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
622 }
623
624 if( pixDynMapping ) HeapFree(GetProcessHeap(), 0, pixDynMapping);
625
626 return TRUE;
627 }
628
629 /***********************************************************************
630 * Colormap Initialization
631 */
632 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
633 {
634 /* initialize unused entries to what Windows uses as a color
635 * cube - based on Greg Kreider's code.
636 */
637
638 int i = 0, idx = 0;
639 int red, no_r, inc_r;
640 int green, no_g, inc_g;
641 int blue, no_b, inc_b;
642
643 if (palette_size <= NB_RESERVED_COLORS)
644 return;
645 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
646 no_r = no_g = no_b = --i;
647 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
648 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
649 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
650 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
651 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
652
653 idx = X11DRV_PALETTE_firstFree;
654
655 if( idx != -1 )
656 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
657 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
658 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
659 {
660 /* weird but true */
661
662 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
663
664 COLOR_sysPal[idx].peRed = red;
665 COLOR_sysPal[idx].peGreen = green;
666 COLOR_sysPal[idx].peBlue = blue;
667
668 /* set X color */
669
670 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
671 {
672 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
673 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
674 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
675
676 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
677 }
678 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
679 {
680 XColor color;
681 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
682 color.red = COLOR_sysPal[idx].peRed << 8;
683 color.green = COLOR_sysPal[idx].peGreen << 8;
684 color.blue = COLOR_sysPal[idx].peBlue << 8;
685 color.flags = DoRed | DoGreen | DoBlue;
686 TSXStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
687 }
688 idx = X11DRV_PALETTE_freeList[idx];
689 }
690
691 /* try to fill some entries in the "gap" with
692 * what's already in the colormap - they will be
693 * mappable to but not changeable. */
694
695 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
696 {
697 XColor xc;
698 int r, g, b, max;
699
700 max = COLOR_max - (256 - (COLOR_gapEnd - COLOR_gapStart));
701 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
702 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
703 {
704 xc.pixel = i;
705
706 TSXQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
707 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
708
709 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
710 TSXAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
711 {
712 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
713 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
714 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
715 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
716 if( --max <= 0 ) break;
717 }
718 }
719 COLOR_gapFilled = idx - COLOR_gapStart;
720 }
721 }
722
723
724 /***********************************************************************
725 * X11DRV_IsSolidColor
726 *
727 * Check whether 'color' can be represented with a solid color.
728 */
729 BOOL X11DRV_IsSolidColor( COLORREF color )
730 {
731 int i;
732 const PALETTEENTRY *pEntry = COLOR_sysPal;
733
734 if (color & 0xff000000) return TRUE; /* indexed color */
735
736 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
737
738 for (i = 0; i < 256 ; i++, pEntry++)
739 {
740 if( i < COLOR_gapStart || i > COLOR_gapEnd )
741 if ((GetRValue(color) == pEntry->peRed) &&
742 (GetGValue(color) == pEntry->peGreen) &&
743 (GetBValue(color) == pEntry->peBlue)) return TRUE;
744 }
745 return FALSE;
746 }
747
748
749 /***********************************************************************
750 * X11DRV_PALETTE_ToLogical
751 *
752 * Return RGB color for given X pixel.
753 */
754 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
755 {
756 XColor color;
757
758 #if 0
759 /* truecolor visual */
760
761 if (screen_depth >= 24) return pixel;
762 #endif
763
764 /* check for hicolor visuals first */
765
766 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
767 {
768 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
769 if (X11DRV_PALETTE_LRed.scale<8)
770 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
771 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
772 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
773 if (X11DRV_PALETTE_LGreen.scale<8)
774 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
775 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
776 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
777 if (X11DRV_PALETTE_LBlue.scale<8)
778 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
779 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
780 return RGB(color.red,color.green,color.blue);
781 }
782
783 /* check if we can bypass X */
784
785 if ((screen_depth <= 8) && (pixel < 256) &&
786 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
787 return ( *(COLORREF*)(COLOR_sysPal +
788 ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff;
789 }
790
791 color.pixel = pixel;
792 TSXQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
793 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
794 }
795
796
797 /***********************************************************************
798 * X11DRV_SysPaletteLookupPixel
799 */
800 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
801 {
802 int i, best = 0, diff = 0x7fffffff;
803 int r,g,b;
804
805 for( i = 0; i < palette_size && diff ; i++ )
806 {
807 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
808 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
809 continue;
810
811 r = COLOR_sysPal[i].peRed - GetRValue(col);
812 g = COLOR_sysPal[i].peGreen - GetGValue(col);
813 b = COLOR_sysPal[i].peBlue - GetBValue(col);
814
815 r = r*r + g*g + b*b;
816
817 if( r < diff ) { best = i; diff = r; }
818 }
819 return best;
820 }
821
822
823 /***********************************************************************
824 * X11DRV_PALETTE_ToPhysical
825 *
826 * Return the physical color closest to 'color'.
827 */
828 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
829 {
830 DC *dc = physDev ? physDev->dc : NULL;
831 WORD index = 0;
832 HPALETTE hPal = (dc)? dc->hPalette: GetStockObject(DEFAULT_PALETTE);
833 unsigned char spec_type = color >> 24;
834 PALETTEOBJ* palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
835
836 /* palPtr can be NULL when DC is being destroyed */
837 if( !palPtr ) return 0;
838
839 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
840 {
841 /* there is no colormap limitation; we are going to have to compute
842 * the pixel value from the visual information stored earlier
843 */
844
845 unsigned long red, green, blue;
846 unsigned idx = 0;
847
848 switch(spec_type)
849 {
850 case 1: /* PALETTEINDEX */
851
852 if( (idx = color & 0xffff) >= palPtr->logpalette.palNumEntries)
853 {
854 WARN("RGB(%lx) : idx %d is out of bounds, assuming black\n", color, idx);
855 GDI_ReleaseObj( hPal );
856 return 0;
857 }
858
859 if( palPtr->mapping )
860 {
861 int ret = palPtr->mapping[idx];
862 GDI_ReleaseObj( hPal );
863 return ret;
864 }
865 color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx);
866 break;
867
868 default:
869 color &= 0xffffff;
870 /* fall through to RGB */
871
872 case 0: /* RGB */
873 if( dc && (dc->bitsPerPixel == 1) )
874 {
875 GDI_ReleaseObj( hPal );
876 return (((color >> 16) & 0xff) +
877 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
878 }
879
880 }
881
882 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
883
884 if (X11DRV_PALETTE_Graymax)
885 {
886 /* grayscale only; return scaled value */
887 GDI_ReleaseObj( hPal );
888 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
889 }
890 else
891 {
892 /* scale each individually and construct the TrueColor pixel value */
893 if (X11DRV_PALETTE_PRed.scale < 8)
894 red = red >> (8-X11DRV_PALETTE_PRed.scale);
895 else if (X11DRV_PALETTE_PRed.scale > 8)
896 red = red << (X11DRV_PALETTE_PRed.scale-8) |
897 red >> (16-X11DRV_PALETTE_PRed.scale);
898 if (X11DRV_PALETTE_PGreen.scale < 8)
899 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
900 else if (X11DRV_PALETTE_PGreen.scale > 8)
901 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
902 green >> (16-X11DRV_PALETTE_PGreen.scale);
903 if (X11DRV_PALETTE_PBlue.scale < 8)
904 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
905 else if (X11DRV_PALETTE_PBlue.scale > 8)
906 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
907 blue >> (16-X11DRV_PALETTE_PBlue.scale);
908
909 GDI_ReleaseObj( hPal );
910 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
911 }
912 }
913 else
914 {
915
916 if( !palPtr->mapping )
917 WARN("Palette %04x is not realized\n", dc->hPalette);
918
919 switch(spec_type) /* we have to peruse DC and system palette */
920 {
921 default:
922 color &= 0xffffff;
923 /* fall through to RGB */
924
925 case 0: /* RGB */
926 if( dc && (dc->bitsPerPixel == 1) )
927 {
928 GDI_ReleaseObj( hPal );
929 return (((color >> 16) & 0xff) +
930 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
931 }
932
933 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
934 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
935
936 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
937 */
938 break;
939 case 1: /* PALETTEINDEX */
940 index = color & 0xffff;
941
942 if( index >= palPtr->logpalette.palNumEntries )
943 WARN("RGB(%lx) : index %i is out of bounds\n", color, index);
944 else if( palPtr->mapping ) index = palPtr->mapping[index];
945
946 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
947 */
948 break;
949 case 2: /* PALETTERGB */
950 index = GetNearestPaletteIndex( hPal, color );
951 if (palPtr->mapping) index = palPtr->mapping[index];
952 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
953 */
954 break;
955 }
956 }
957
958 GDI_ReleaseObj( hPal );
959 return index;
960 }
961
962 /***********************************************************************
963 * X11DRV_PALETTE_LookupSystemXPixel
964 */
965 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
966 {
967 int i, best = 0, diff = 0x7fffffff;
968 int size = palette_size;
969 int r,g,b;
970
971 for( i = 0; i < size && diff ; i++ )
972 {
973 if( i == NB_RESERVED_COLORS/2 )
974 {
975 int newi = size - NB_RESERVED_COLORS/2;
976 if (newi>i) i=newi;
977 }
978
979 r = COLOR_sysPal[i].peRed - GetRValue(col);
980 g = COLOR_sysPal[i].peGreen - GetGValue(col);
981 b = COLOR_sysPal[i].peBlue - GetBValue(col);
982
983 r = r*r + g*g + b*b;
984
985 if( r < diff ) { best = i; diff = r; }
986 }
987
988 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
989 }
990
991 /***********************************************************************
992 * X11DRV_PALETTE_FormatSystemPalette
993 */
994 static void X11DRV_PALETTE_FormatSystemPalette(void)
995 {
996 /* Build free list so we'd have an easy way to find
997 * out if there are any available colorcells.
998 */
999
1000 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1001
1002 COLOR_sysPal[j].peFlags = 0;
1003 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1004 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1005 {
1006 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1007 X11DRV_PALETTE_freeList[j] = i; /* next */
1008 j = i;
1009 }
1010 X11DRV_PALETTE_freeList[j] = 0;
1011 }
1012
1013 /***********************************************************************
1014 * X11DRV_PALETTE_CheckSysColor
1015 */
1016 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1017 {
1018 int i;
1019 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1020 if( c == (*(COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1021 return 0;
1022 return 1;
1023 }
1024
1025
1026 /***********************************************************************
1027 * X11DRV_LookupSysPaletteExact
1028 */
1029 static int X11DRV_LookupSysPaletteExact( COLORREF col )
1030 {
1031 int i;
1032 BYTE r = GetRValue(col), g = GetGValue(col), b = GetBValue(col);
1033 for( i = 0; i < palette_size; i++ )
1034 {
1035 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1036 if( COLOR_sysPal[i].peRed == r &&
1037 COLOR_sysPal[i].peGreen == g &&
1038 COLOR_sysPal[i].peBlue == b )
1039 return i;
1040 }
1041 return -1;
1042 }
1043
1044
1045 /***********************************************************************
1046 * X11DRV_PALETTE_SetMapping
1047 *
1048 * Set the color-mapping table for selected palette.
1049 * Return number of entries which mapping has changed.
1050 */
1051 static UINT X11DRV_PALETTE_SetMapping( PALETTEOBJ* palPtr, UINT uStart, UINT uNum, BOOL mapOnly )
1052 {
1053 char flag;
1054 int prevMapping = (palPtr->mapping) ? 1 : 0;
1055 int index;
1056 UINT iRemapped = 0;
1057 int* mapping;
1058
1059 /* reset dynamic system palette entries */
1060
1061 if( !mapOnly && X11DRV_PALETTE_firstFree != -1)
1062 X11DRV_PALETTE_FormatSystemPalette();
1063
1064 /* initialize palette mapping table */
1065
1066 mapping = HeapReAlloc( GetProcessHeap(), 0, palPtr->mapping,
1067 sizeof(int)*palPtr->logpalette.palNumEntries);
1068 if(mapping == NULL) {
1069 ERR("Can not allocate new mapping -- memory exausted!\n");
1070 return 0;
1071 }
1072 palPtr->mapping = mapping;
1073
1074 if (uStart >= palPtr->logpalette.palNumEntries) return 0;
1075
1076 if (uStart + uNum > palPtr->logpalette.palNumEntries)
1077 uNum = palPtr->logpalette.palNumEntries - uStart;
1078
1079 for( uNum += uStart; uStart < uNum; uStart++ )
1080 {
1081 index = -1;
1082 flag = PC_SYS_USED;
1083
1084 switch( palPtr->logpalette.palPalEntry[uStart].peFlags & 0x07 )
1085 {
1086 case PC_EXPLICIT: /* palette entries are indices into system palette */
1087 index = *(WORD*)(palPtr->logpalette.palPalEntry + uStart);
1088 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1089 {
1090 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1091 index = 0;
1092 }
1093 break;
1094
1095 case PC_RESERVED: /* forbid future mappings to this entry */
1096 flag |= PC_SYS_RESERVED;
1097
1098 /* fall through */
1099 default: /* try to collapse identical colors */
1100 index = X11DRV_LookupSysPaletteExact(*(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1101 /* fall through */
1102 case PC_NOCOLLAPSE:
1103 if( index < 0 )
1104 {
1105 if( X11DRV_PALETTE_firstFree > 0 && !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
1106 {
1107 XColor color;
1108 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1109 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1110
1111 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1112 color.red = palPtr->logpalette.palPalEntry[uStart].peRed << 8;
1113 color.green = palPtr->logpalette.palPalEntry[uStart].peGreen << 8;
1114 color.blue = palPtr->logpalette.palPalEntry[uStart].peBlue << 8;
1115 color.flags = DoRed | DoGreen | DoBlue;
1116 TSXStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1117
1118 COLOR_sysPal[index] = palPtr->logpalette.palPalEntry[uStart];
1119 COLOR_sysPal[index].peFlags = flag;
1120 X11DRV_PALETTE_freeList[index] = 0;
1121
1122 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1123 break;
1124 }
1125 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1126 {
1127 index = X11DRV_PALETTE_ToPhysical( NULL, 0x00ffffff &
1128 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1129 break;
1130 }
1131
1132 /* we have to map to existing entry in the system palette */
1133
1134 index = X11DRV_SysPaletteLookupPixel( *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), TRUE);
1135 }
1136 palPtr->logpalette.palPalEntry[uStart].peFlags |= PC_SYS_USED;
1137
1138 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1139 break;
1140 }
1141
1142 if( !prevMapping || palPtr->mapping[uStart] != index ) iRemapped++;
1143 palPtr->mapping[uStart] = index;
1144
1145 TRACE("entry %i (%lx) -> pixel %i\n", uStart,
1146 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), index);
1147
1148 }
1149 return iRemapped;
1150 }
1151
1152 /***********************************************************************
1153 * GetSystemPaletteEntries (X11DRV.@)
1154 */
1155 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1156 LPPALETTEENTRY entries )
1157 {
1158 UINT i;
1159
1160 if (!entries) return palette_size;
1161 if (start >= palette_size) return 0;
1162 if (start + count >= palette_size) count = palette_size - start;
1163
1164 for (i = 0; i < count; i++)
1165 {
1166 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1167 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1168 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1169 entries[i].peFlags = 0;
1170 TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
1171 }
1172 return count;
1173 }
1174
1175
1176 /***********************************************************************
1177 * GetNearestColor (X11DRV.@)
1178 */
1179 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1180 {
1181 unsigned char spec_type = color >> 24;
1182 COLORREF nearest;
1183
1184 if (!palette_size) return color;
1185
1186 if (spec_type == 1 || spec_type == 2)
1187 {
1188 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1189
1190 UINT index;
1191 PALETTEENTRY entry;
1192 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1193
1194 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1195
1196 if (spec_type == 2) /* PALETTERGB */
1197 index = GetNearestPaletteIndex( hpal, color );
1198 else /* PALETTEINDEX */
1199 index = LOWORD(color);
1200
1201 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1202 {
1203 WARN("RGB(%lx) : idx %d is out of bounds, assuming NULL\n", color, index );
1204 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1205 }
1206 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1207 }
1208 color &= 0x00ffffff;
1209 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1210
1211 TRACE("(%06lx): returning %06lx\n", color, nearest );
1212 return nearest;
1213 }
1214
1215
1216 /***********************************************************************
1217 * RealizePalette (X11DRV.@)
1218 */
1219 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1220 {
1221 UINT ret;
1222 PALETTEOBJ *palPtr;
1223
1224 if (!(palPtr = GDI_GetObjPtr( hpal, PALETTE_MAGIC ))) return 0;
1225 ret = X11DRV_PALETTE_SetMapping( palPtr, 0, palPtr->logpalette.palNumEntries, !primary );
1226 GDI_ReleaseObj( hpal );
1227 return ret;
1228 }
1229
1230
1231 /***********************************************************************
1232 * RealizeDefaultPalette (X11DRV.@)
1233 */
1234 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1235 {
1236 DC *dc = physDev->dc;
1237 UINT ret = 0;
1238
1239 if (palette_size && !(dc->flags & DC_MEMORY))
1240 {
1241 PALETTEOBJ* palPtr = GDI_GetObjPtr( GetStockObject(DEFAULT_PALETTE), PALETTE_MAGIC );
1242 if (palPtr)
1243 {
1244 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1245 int i, index;
1246
1247 for( i = 0; i < 20; i++ )
1248 {
1249 index = X11DRV_PALETTE_LookupSystemXPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
1250 /* mapping is allocated in COLOR_InitPalette() */
1251 if( index != palPtr->mapping[i] )
1252 {
1253 palPtr->mapping[i]=index;
1254 ret++;
1255 }
1256 }
1257 GDI_ReleaseObj( GetStockObject(DEFAULT_PALETTE) );
1258 }
1259 }
1260 return ret;
1261 }
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