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[wine.git] / dlls / winex11.drv / palette.c
blobbb6d4939c349549f58a7cadf97e176a95976f097
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22
23 #include <stdarg.h>
24 #include <stdlib.h>
25 #include <string.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "x11drv.h"
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(palette);
33
34 /* Palette indexed mode:
35 * logical palette -> mapping -> pixel
36 *
37 *
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.
46 *
47 * Windows palette manager is described in the
48 * http://premium.microsoft.com/msdn/library/techart/f30/f34/f40/d4d/sa942.htm
49 */
50
51 #define NB_RESERVED_COLORS 20 /* number of fixed colors in system palette */
52
53 #define PC_SYS_USED 0x80 /* palentry is used (both system and logical) */
54 #define PC_SYS_RESERVED 0x40 /* system palentry is not to be mapped to */
55
56 static PALETTEENTRY *COLOR_sysPal; /* current system palette */
57
58 static int COLOR_gapStart = 256;
59 static int COLOR_gapEnd = -1;
60 static int COLOR_gapFilled = 0;
61
62 Colormap X11DRV_PALETTE_PaletteXColormap = 0;
63 UINT16 X11DRV_PALETTE_PaletteFlags = 0;
64
65 typedef struct {
66 int shift;
67 int scale;
68 int max;
69 } ColorShifts;
70
71 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
72 static ColorShifts X11DRV_PALETTE_PRed = {0,0,0};
73 static ColorShifts X11DRV_PALETTE_LRed = {0,0,0};
74 static ColorShifts X11DRV_PALETTE_PGreen = {0,0,0};
75 static ColorShifts X11DRV_PALETTE_LGreen = {0,0,0};
76 static ColorShifts X11DRV_PALETTE_PBlue = {0,0,0};
77 static ColorShifts X11DRV_PALETTE_LBlue = {0,0,0};
78 static int X11DRV_PALETTE_Graymax = 0;
79
80 static int palette_size;
81
82 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
83 static int X11DRV_PALETTE_firstFree = 0;
84 static unsigned char X11DRV_PALETTE_freeList[256];
85
86 static XContext palette_context; /* X context to associate a color mapping to a palette */
87
88 /**********************************************************************/
89
90 /* Map an EGA index (0..15) to a pixel value in the system color space. */
91
92 int X11DRV_PALETTE_mapEGAPixel[16];
93
94 /**********************************************************************/
95
96 #define NB_COLORCUBE_START_INDEX 63
97 #define NB_PALETTE_EMPTY_VALUE -1
98
99 /* Maps entry in the system palette to X pixel value */
100 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
101
102 /* Maps pixel to the entry in the system palette */
103 int *X11DRV_PALETTE_XPixelToPalette = NULL;
104
105 /**********************************************************************/
106
107 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
108 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
109 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical);
110 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
111 static void X11DRV_PALETTE_FormatSystemPalette(void);
112 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
113 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
114
115
116 /***********************************************************************
117 * palette_get_mapping
118 */
119 static int *palette_get_mapping( HPALETTE hpal )
120 {
121 int *mapping;
122
123 wine_tsx11_lock();
124 if (XFindContext( gdi_display, (XID)hpal, palette_context, (char **)&mapping )) mapping = NULL;
125 wine_tsx11_unlock();
126 return mapping;
127 }
128
129
130 /***********************************************************************
131 * palette_set_mapping
132 */
133 static void palette_set_mapping( HPALETTE hpal, int *mapping )
134 {
135 wine_tsx11_lock();
136 XSaveContext( gdi_display, (XID)hpal, palette_context, (char *)mapping );
137 wine_tsx11_unlock();
138 }
139
140
141 /***********************************************************************
142 * COLOR_Init
143 *
144 * Initialize color management.
145 */
146 int X11DRV_PALETTE_Init(void)
147 {
148 int mask, white, black;
149 int monoPlane;
150 int *mapping;
151 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
152
153 TRACE("initializing palette manager...\n");
154
155 wine_tsx11_lock();
156 palette_context = XUniqueContext();
157 wine_tsx11_unlock();
158 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
159 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
160 monoPlane = 1;
161 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
162 monoPlane++;
163 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
164 palette_size = visual->map_entries;
165
166 switch(visual->class)
167 {
168 case DirectColor:
169 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
170 case GrayScale:
171 case PseudoColor:
172 wine_tsx11_lock();
173 if (private_color_map)
174 {
175 XSetWindowAttributes win_attr;
176
177 X11DRV_PALETTE_PaletteXColormap = XCreateColormap( gdi_display, root_window,
178 visual, AllocAll );
179 if (X11DRV_PALETTE_PaletteXColormap)
180 {
181 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
182
183 monoPlane = 1;
184 for( white = palette_size - 1; !(white & 1); white >>= 1 )
185 monoPlane++;
186
187 if( root_window != DefaultRootWindow(gdi_display) )
188 {
189 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
190 XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
191 }
192 }
193 } else {
194 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
195 visual, AllocNone);
196 }
197 wine_tsx11_unlock();
198 break;
199
200 case StaticGray:
201 wine_tsx11_lock();
202 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
203 visual, AllocNone);
204 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
205 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
206 wine_tsx11_unlock();
207 break;
208
209 case TrueColor:
210 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
211 case StaticColor: {
212 int *depths,nrofdepths;
213 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
214 * depths 1 and 4
215 */
216 wine_tsx11_lock();
217 depths = XListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
218 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
219 monoPlane = 1;
220 for( white = palette_size - 1; !(white & 1); white >>= 1 )
221 monoPlane++;
222 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
223 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
224 visual, AllocNone);
225 }
226 else
227 {
228 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
229 visual, AllocNone);
230 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
231 X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_PRed, &X11DRV_PALETTE_LRed);
232 X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_PGreen, &X11DRV_PALETTE_LGreen);
233 X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_PBlue, &X11DRV_PALETTE_LBlue);
234 }
235 XFree(depths);
236 wine_tsx11_unlock();
237 break;
238 }
239 }
240
241 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
242
243 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
244
245 if ((mapping = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * NB_RESERVED_COLORS )))
246 palette_set_mapping( GetStockObject(DEFAULT_PALETTE), mapping );
247
248 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
249 {
250 palette_size = 0;
251 }
252 else
253 {
254 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
255 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
256 else
257 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
258
259 /* Build free list */
260
261 if( X11DRV_PALETTE_firstFree != -1 )
262 X11DRV_PALETTE_FormatSystemPalette();
263
264 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
265 palette_size = visual->map_entries;
266 }
267
268 return palette_size;
269 }
270
271 /***********************************************************************
272 * X11DRV_PALETTE_Cleanup
273 *
274 * Free external colors we grabbed in the FillDefaultPalette()
275 */
276 void X11DRV_PALETTE_Cleanup(void)
277 {
278 if( COLOR_gapFilled )
279 {
280 wine_tsx11_lock();
281 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
282 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
283 COLOR_gapFilled, 0);
284 wine_tsx11_unlock();
285 }
286 }
287
288 /***********************************************************************
289 * X11DRV_PALETTE_ComputeShifts
290 *
291 * Calculate conversion parameters for direct mapped visuals
292 */
293 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical)
294 {
295 int i;
296
297 if (maskbits==0)
298 {
299 physical->shift=0;
300 physical->scale=0;
301 physical->max=0;
302 to_logical->shift=0;
303 to_logical->scale=0;
304 to_logical->max=0;
305 return;
306 }
307
308 for(i=0;!(maskbits&1);i++)
309 maskbits >>= 1;
310
311 physical->shift = i;
312 physical->max = maskbits;
313
314 for(i=0;maskbits!=0;i++)
315 maskbits >>= 1;
316 physical->scale = i;
317
318 if (physical->scale>8)
319 {
320 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
321 * So we adjust the shifts to also normalize the color fields to
322 * the Win32 standard of 8 bits per color.
323 */
324 to_logical->shift=physical->shift+(physical->scale-8);
325 to_logical->scale=8;
326 to_logical->max=0xff;
327 } else {
328 to_logical->shift=physical->shift;
329 to_logical->scale=physical->scale;
330 to_logical->max=physical->max;
331 }
332 }
333
334 /***********************************************************************
335 * X11DRV_PALETTE_BuildPrivateMap
336 *
337 * Allocate colorcells and initialize mapping tables.
338 */
339 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
340 {
341 /* Private colormap - identity mapping */
342
343 XColor color;
344 int i;
345
346 if((COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
347 WARN("Unable to allocate the system palette\n");
348 return FALSE;
349 }
350
351 TRACE("Building private map - %i palette entries\n", palette_size);
352
353 /* Allocate system palette colors */
354
355 wine_tsx11_lock();
356 for( i=0; i < palette_size; i++ )
357 {
358 if( i < NB_RESERVED_COLORS/2 )
359 {
360 color.red = sys_pal_template[i].peRed * 65535 / 255;
361 color.green = sys_pal_template[i].peGreen * 65535 / 255;
362 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
363 COLOR_sysPal[i] = sys_pal_template[i];
364 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
365 }
366 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
367 {
368 int j = NB_RESERVED_COLORS + i - palette_size;
369 color.red = sys_pal_template[j].peRed * 65535 / 255;
370 color.green = sys_pal_template[j].peGreen * 65535 / 255;
371 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
372 COLOR_sysPal[i] = sys_pal_template[j];
373 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
374 }
375
376 color.flags = DoRed | DoGreen | DoBlue;
377 color.pixel = i;
378 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
379
380 /* Set EGA mapping if color is from the first or last eight */
381
382 if (i < 8)
383 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
384 else if (i >= palette_size - 8 )
385 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
386 }
387 wine_tsx11_unlock();
388
389 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
390
391 COLOR_gapStart = 256; COLOR_gapEnd = -1;
392
393 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
394
395 return FALSE;
396 }
397
398 /***********************************************************************
399 * X11DRV_PALETTE_BuildSharedMap
400 *
401 * Allocate colorcells and initialize mapping tables.
402 */
403 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
404 {
405 XColor color;
406 unsigned long sysPixel[NB_RESERVED_COLORS];
407 unsigned long* pixDynMapping = NULL;
408 unsigned long plane_masks[1];
409 int i, j, warn = 0;
410 int diff, r, g, b, bp = 0, wp = 1;
411 int step = 1;
412 unsigned int max = 256;
413 Colormap defaultCM;
414 XColor defaultColors[256];
415
416 /* Copy the first bunch of colors out of the default colormap to prevent
417 * colormap flashing as much as possible. We're likely to get the most
418 * important Window Manager colors, etc in the first 128 colors */
419 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
420
421 if (copy_default_colors > 256) copy_default_colors = 256;
422 for (i = 0; i < copy_default_colors; i++)
423 defaultColors[i].pixel = (long) i;
424 wine_tsx11_lock();
425 XQueryColors(gdi_display, defaultCM, &defaultColors[0], copy_default_colors);
426 for (i = 0; i < copy_default_colors; i++)
427 XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
428
429 if (alloc_system_colors > 256) alloc_system_colors = 256;
430 else if (alloc_system_colors < 20) alloc_system_colors = 20;
431 TRACE("%d colors configured.\n", alloc_system_colors);
432
433 TRACE("Building shared map - %i palette entries\n", palette_size);
434
435 /* Be nice and allocate system colors as read-only */
436
437 for( i = 0; i < NB_RESERVED_COLORS; i++ )
438 {
439 color.red = sys_pal_template[i].peRed * 65535 / 255;
440 color.green = sys_pal_template[i].peGreen * 65535 / 255;
441 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
442 color.flags = DoRed | DoGreen | DoBlue;
443
444 if (!XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
445 {
446 XColor best, c;
447
448 if( !warn++ )
449 {
450 WARN("Not enough colors for the full system palette.\n");
451
452 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
453 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
454
455 max = (0xffffffff)>>(32 - screen_depth);
456 if( max > 256 )
457 {
458 step = max/256;
459 max = 256;
460 }
461 }
462
463 /* reinit color (XAllocColor() may change it)
464 * and map to the best shared colorcell */
465
466 color.red = sys_pal_template[i].peRed * 65535 / 255;
467 color.green = sys_pal_template[i].peGreen * 65535 / 255;
468 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
469
470 best.pixel = best.red = best.green = best.blue = 0;
471 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
472 {
473 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
474 r = (c.red - color.red)>>8;
475 g = (c.green - color.green)>>8;
476 b = (c.blue - color.blue)>>8;
477 r = r*r + g*g + b*b;
478 if( r < diff ) { best = c; diff = r; }
479 }
480
481 if( XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
482 color.pixel = best.pixel;
483 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
484 }
485
486 sysPixel[i] = color.pixel;
487
488 TRACE("syscolor(%x) -> pixel %i\n", *(const COLORREF*)(sys_pal_template+i),
489 (int)color.pixel);
490
491 /* Set EGA mapping if color in the first or last eight */
492
493 if (i < 8)
494 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
495 else if (i >= NB_RESERVED_COLORS - 8 )
496 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
497 }
498 wine_tsx11_unlock();
499
500 /* now allocate changeable set */
501
502 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
503 {
504 int c_min = 0, c_max = palette_size, c_val;
505
506 TRACE("Dynamic colormap...\n");
507
508 /* let's become the first client that actually follows
509 * X guidelines and does binary search...
510 */
511
512 if((pixDynMapping = HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
513 WARN("Out of memory while building system palette.\n");
514 return FALSE;
515 }
516
517 wine_tsx11_lock();
518 /* comment this out if you want to debug palette init */
519 XGrabServer(gdi_display);
520
521 while( c_max - c_min > 0 )
522 {
523 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
524
525 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
526 plane_masks, 0, pixDynMapping, c_val) )
527 c_max = c_val - 1;
528 else
529 {
530 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
531 c_min = c_val;
532 }
533 }
534
535 if( c_min > alloc_system_colors - NB_RESERVED_COLORS)
536 c_min = alloc_system_colors - NB_RESERVED_COLORS;
537
538 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
539
540 if( c_min > 0 )
541 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
542 plane_masks, 0, pixDynMapping, c_min) )
543 {
544 WARN("Inexplicable failure during colorcell allocation.\n");
545 c_min = 0;
546 }
547
548 palette_size = c_min + NB_RESERVED_COLORS;
549
550 XUngrabServer(gdi_display);
551 wine_tsx11_unlock();
552
553 TRACE("adjusted size %i colorcells\n", palette_size);
554 }
555 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
556 {
557 /* virtual colorspace - ToPhysical takes care of
558 * color translations but we have to allocate full palette
559 * to maintain compatibility
560 */
561 palette_size = 256;
562 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
563 }
564 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
565 * of colors and map to them */
566
567 TRACE("Shared system palette uses %i colors.\n", palette_size);
568
569 /* set gap to account for pixel shortage. It has to be right in the center
570 * of the system palette because otherwise raster ops get screwed. */
571
572 if( palette_size >= 256 )
573 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
574 else
575 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
576
577 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
578 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
579 ? NB_RESERVED_COLORS/2 : -1;
580
581 COLOR_sysPal = HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
582 if(COLOR_sysPal == NULL) {
583 ERR("Unable to allocate the system palette!\n");
584 HeapFree(GetProcessHeap(), 0, pixDynMapping);
585 return FALSE;
586 }
587
588 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
589
590 if (screen_depth <= 8)
591 {
592 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
593 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
594 ERR("Out of memory: XPixelToPalette!\n");
595 HeapFree(GetProcessHeap(), 0, pixDynMapping);
596 return FALSE;
597 }
598 for( i = 0; i < 256; i++ )
599 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
600 }
601
602 /* for hicolor visuals PaletteToPixel mapping is used to skip
603 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
604 */
605
606 X11DRV_PALETTE_PaletteToXPixel = HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
607 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
608 ERR("Out of memory: PaletteToXPixel!\n");
609 HeapFree(GetProcessHeap(), 0, pixDynMapping);
610 return FALSE;
611 }
612
613 for( i = j = 0; i < 256; i++ )
614 {
615 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
616 {
617 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
618 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
619 continue;
620 }
621
622 if( i < NB_RESERVED_COLORS/2 )
623 {
624 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
625 COLOR_sysPal[i] = sys_pal_template[i];
626 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
627 }
628 else if( i >= 256 - NB_RESERVED_COLORS/2 )
629 {
630 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
631 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
632 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
633 }
634 else if( pixDynMapping )
635 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
636 else
637 X11DRV_PALETTE_PaletteToXPixel[i] = i;
638
639 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
640
641 if( X11DRV_PALETTE_XPixelToPalette )
642 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
643 }
644
645 HeapFree(GetProcessHeap(), 0, pixDynMapping);
646
647 return TRUE;
648 }
649
650 /***********************************************************************
651 * Colormap Initialization
652 */
653 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
654 {
655 /* initialize unused entries to what Windows uses as a color
656 * cube - based on Greg Kreider's code.
657 */
658
659 int i = 0, idx = 0;
660 int red, no_r, inc_r;
661 int green, no_g, inc_g;
662 int blue, no_b, inc_b;
663
664 if (palette_size <= NB_RESERVED_COLORS)
665 return;
666 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
667 no_r = no_g = no_b = --i;
668 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
669 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
670 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
671 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
672 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
673
674 wine_tsx11_lock();
675
676 idx = X11DRV_PALETTE_firstFree;
677
678 if( idx != -1 )
679 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
680 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
681 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
682 {
683 /* weird but true */
684
685 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
686
687 COLOR_sysPal[idx].peRed = red;
688 COLOR_sysPal[idx].peGreen = green;
689 COLOR_sysPal[idx].peBlue = blue;
690
691 /* set X color */
692
693 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
694 {
695 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
696 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
697 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
698
699 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
700 }
701 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
702 {
703 XColor color;
704 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
705 color.red = COLOR_sysPal[idx].peRed << 8;
706 color.green = COLOR_sysPal[idx].peGreen << 8;
707 color.blue = COLOR_sysPal[idx].peBlue << 8;
708 color.flags = DoRed | DoGreen | DoBlue;
709 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
710 }
711 idx = X11DRV_PALETTE_freeList[idx];
712 }
713
714 /* try to fill some entries in the "gap" with
715 * what's already in the colormap - they will be
716 * mappable to but not changeable. */
717
718 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
719 {
720 XColor xc;
721 int r, g, b, max;
722
723 max = alloc_system_colors - (256 - (COLOR_gapEnd - COLOR_gapStart));
724 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
725 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
726 {
727 xc.pixel = i;
728
729 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
730 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
731
732 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
733 XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
734 {
735 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
736 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
737 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
738 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
739 if( --max <= 0 ) break;
740 }
741 }
742 COLOR_gapFilled = idx - COLOR_gapStart;
743 }
744 wine_tsx11_unlock();
745 }
746
747
748 /***********************************************************************
749 * X11DRV_IsSolidColor
750 *
751 * Check whether 'color' can be represented with a solid color.
752 */
753 BOOL X11DRV_IsSolidColor( COLORREF color )
754 {
755 int i;
756 const PALETTEENTRY *pEntry = COLOR_sysPal;
757
758 if (color & 0xff000000) return TRUE; /* indexed color */
759
760 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
761
762 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return TRUE; /* no palette */
763
764 for (i = 0; i < palette_size ; i++, pEntry++)
765 {
766 if( i < COLOR_gapStart || i > COLOR_gapEnd )
767 if ((GetRValue(color) == pEntry->peRed) &&
768 (GetGValue(color) == pEntry->peGreen) &&
769 (GetBValue(color) == pEntry->peBlue)) return TRUE;
770 }
771 return FALSE;
772 }
773
774
775 /***********************************************************************
776 * X11DRV_PALETTE_ToLogical
777 *
778 * Return RGB color for given X pixel.
779 */
780 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
781 {
782 XColor color;
783
784 #if 0
785 /* truecolor visual */
786
787 if (screen_depth >= 24) return pixel;
788 #endif
789
790 /* check for hicolor visuals first */
791
792 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
793 {
794 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
795 if (X11DRV_PALETTE_LRed.scale<8)
796 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
797 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
798 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
799 if (X11DRV_PALETTE_LGreen.scale<8)
800 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
801 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
802 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
803 if (X11DRV_PALETTE_LBlue.scale<8)
804 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
805 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
806 return RGB(color.red,color.green,color.blue);
807 }
808
809 /* check if we can bypass X */
810
811 if ((screen_depth <= 8) && (pixel < 256) &&
812 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
813 return ( *(COLORREF*)(COLOR_sysPal +
814 ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff;
815 }
816
817 wine_tsx11_lock();
818 color.pixel = pixel;
819 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
820 wine_tsx11_unlock();
821 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
822 }
823
824
825 /***********************************************************************
826 * X11DRV_SysPaletteLookupPixel
827 */
828 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
829 {
830 int i, best = 0, diff = 0x7fffffff;
831 int r,g,b;
832
833 for( i = 0; i < palette_size && diff ; i++ )
834 {
835 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
836 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
837 continue;
838
839 r = COLOR_sysPal[i].peRed - GetRValue(col);
840 g = COLOR_sysPal[i].peGreen - GetGValue(col);
841 b = COLOR_sysPal[i].peBlue - GetBValue(col);
842
843 r = r*r + g*g + b*b;
844
845 if( r < diff ) { best = i; diff = r; }
846 }
847 return best;
848 }
849
850
851 static inline BOOL colour_is_brighter(RGBQUAD c1, RGBQUAD c2)
852 {
853 return (c1.rgbRed * c1.rgbRed + c1.rgbGreen * c1.rgbGreen + c1.rgbBlue * c1.rgbBlue) >
854 (c2.rgbRed * c2.rgbRed + c2.rgbGreen * c2.rgbGreen + c2.rgbBlue * c2.rgbBlue);
855 }
856
857 /***********************************************************************
858 * X11DRV_PALETTE_ToPhysical
859 *
860 * Return the physical color closest to 'color'.
861 */
862 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
863 {
864 WORD index = 0;
865 HPALETTE hPal = physDev ? GetCurrentObject(physDev->hdc, OBJ_PAL ) : GetStockObject(DEFAULT_PALETTE);
866 unsigned char spec_type = color >> 24;
867 int *mapping = palette_get_mapping( hPal );
868 PALETTEENTRY entry;
869
870 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
871 {
872 /* there is no colormap limitation; we are going to have to compute
873 * the pixel value from the visual information stored earlier
874 */
875
876 unsigned long red, green, blue;
877 unsigned idx = color & 0xffff;
878 RGBQUAD quad;
879
880 switch(spec_type)
881 {
882 case 0x10: /* DIBINDEX */
883 if( GetDIBColorTable( physDev->hdc, idx, 1, &quad ) != 1 ) {
884 WARN("DIBINDEX(%x) : idx %d is out of bounds, assuming black\n", color , idx);
885 return 0;
886 }
887 color = RGB( quad.rgbRed, quad.rgbGreen, quad.rgbBlue );
888 break;
889
890 case 1: /* PALETTEINDEX */
891 if (!GetPaletteEntries( hPal, idx, 1, &entry ))
892 {
893 WARN("PALETTEINDEX(%x) : idx %d is out of bounds, assuming black\n", color, idx);
894 return 0;
895 }
896 if (mapping) return mapping[idx];
897 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
898 break;
899
900 default:
901 color &= 0xffffff;
902 /* fall through to RGB */
903
904 case 0: /* RGB */
905 if (physDev && (physDev->depth == 1) )
906 {
907 int white = 1;
908 RGBQUAD table[2];
909
910 if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
911 {
912 if(!colour_is_brighter(table[1], table[0])) white = 0;
913 }
914 return (((color >> 16) & 0xff) +
915 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? white : 1 - white;
916 }
917
918 }
919
920 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
921
922 if (X11DRV_PALETTE_Graymax)
923 {
924 /* grayscale only; return scaled value */
925 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
926 }
927 else
928 {
929 /* scale each individually and construct the TrueColor pixel value */
930 if (X11DRV_PALETTE_PRed.scale < 8)
931 red = red >> (8-X11DRV_PALETTE_PRed.scale);
932 else if (X11DRV_PALETTE_PRed.scale > 8)
933 red = red << (X11DRV_PALETTE_PRed.scale-8) |
934 red >> (16-X11DRV_PALETTE_PRed.scale);
935 if (X11DRV_PALETTE_PGreen.scale < 8)
936 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
937 else if (X11DRV_PALETTE_PGreen.scale > 8)
938 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
939 green >> (16-X11DRV_PALETTE_PGreen.scale);
940 if (X11DRV_PALETTE_PBlue.scale < 8)
941 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
942 else if (X11DRV_PALETTE_PBlue.scale > 8)
943 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
944 blue >> (16-X11DRV_PALETTE_PBlue.scale);
945
946 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
947 }
948 }
949 else
950 {
951 if (!mapping)
952 WARN("Palette %p is not realized\n", hPal);
953
954 switch(spec_type) /* we have to peruse DC and system palette */
955 {
956 default:
957 color &= 0xffffff;
958 /* fall through to RGB */
959
960 case 0: /* RGB */
961 if (physDev && (physDev->depth == 1) )
962 {
963 int white = 1;
964 RGBQUAD table[2];
965
966 if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
967 {
968 if(!colour_is_brighter(table[1], table[0]))
969 white = 0;
970 }
971 return (((color >> 16) & 0xff) +
972 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? white : 1 - white;
973 }
974
975 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
976 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
977
978 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
979 */
980 break;
981 case 1: /* PALETTEINDEX */
982 index = color & 0xffff;
983 if (!GetPaletteEntries( hPal, index, 1, &entry ))
984 WARN("PALETTEINDEX(%x) : index %i is out of bounds\n", color, index);
985 else if (mapping) index = mapping[index];
986
987 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
988 */
989 break;
990 case 2: /* PALETTERGB */
991 index = GetNearestPaletteIndex( hPal, color );
992 if (mapping) index = mapping[index];
993 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
994 */
995 break;
996 }
997 }
998 return index;
999 }
1000
1001 /***********************************************************************
1002 * X11DRV_PALETTE_LookupSystemXPixel
1003 */
1004 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
1005 {
1006 int i, best = 0, diff = 0x7fffffff;
1007 int size = palette_size;
1008 int r,g,b;
1009
1010 for( i = 0; i < size && diff ; i++ )
1011 {
1012 if( i == NB_RESERVED_COLORS/2 )
1013 {
1014 int newi = size - NB_RESERVED_COLORS/2;
1015 if (newi>i) i=newi;
1016 }
1017
1018 r = COLOR_sysPal[i].peRed - GetRValue(col);
1019 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1020 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1021
1022 r = r*r + g*g + b*b;
1023
1024 if( r < diff ) { best = i; diff = r; }
1025 }
1026
1027 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1028 }
1029
1030 /***********************************************************************
1031 * X11DRV_PALETTE_FormatSystemPalette
1032 */
1033 static void X11DRV_PALETTE_FormatSystemPalette(void)
1034 {
1035 /* Build free list so we'd have an easy way to find
1036 * out if there are any available colorcells.
1037 */
1038
1039 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1040
1041 COLOR_sysPal[j].peFlags = 0;
1042 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1043 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1044 {
1045 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1046 X11DRV_PALETTE_freeList[j] = i; /* next */
1047 j = i;
1048 }
1049 X11DRV_PALETTE_freeList[j] = 0;
1050 }
1051
1052 /***********************************************************************
1053 * X11DRV_PALETTE_CheckSysColor
1054 */
1055 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1056 {
1057 int i;
1058 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1059 if( c == (*(const COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1060 return 0;
1061 return 1;
1062 }
1063
1064
1065 /***********************************************************************
1066 * X11DRV_LookupSysPaletteExact
1067 */
1068 static int X11DRV_LookupSysPaletteExact( BYTE r, BYTE g, BYTE b )
1069 {
1070 int i;
1071 for( i = 0; i < palette_size; i++ )
1072 {
1073 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1074 if( COLOR_sysPal[i].peRed == r &&
1075 COLOR_sysPal[i].peGreen == g &&
1076 COLOR_sysPal[i].peBlue == b )
1077 return i;
1078 }
1079 return -1;
1080 }
1081
1082
1083 /***********************************************************************
1084 * RealizePalette (X11DRV.@)
1085 */
1086 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1087 {
1088 char flag;
1089 int index;
1090 UINT i, iRemapped = 0;
1091 int *prev_mapping, *mapping;
1092 PALETTEENTRY entries[256];
1093 WORD num_entries;
1094
1095 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1096
1097 if (!GetObjectW( hpal, sizeof(num_entries), &num_entries )) return 0;
1098
1099 /* reset dynamic system palette entries */
1100
1101 if( primary && X11DRV_PALETTE_firstFree != -1)
1102 X11DRV_PALETTE_FormatSystemPalette();
1103
1104 /* initialize palette mapping table */
1105 prev_mapping = palette_get_mapping( hpal );
1106 if (prev_mapping)
1107 mapping = HeapReAlloc( GetProcessHeap(), 0, prev_mapping, sizeof(int)*num_entries);
1108 else
1109 mapping = HeapAlloc( GetProcessHeap(), 0, sizeof(int)*num_entries);
1110
1111 if(mapping == NULL) {
1112 ERR("Unable to allocate new mapping -- memory exhausted!\n");
1113 return 0;
1114 }
1115 palette_set_mapping( hpal, mapping );
1116
1117 if (num_entries > 256)
1118 {
1119 FIXME( "more than 256 entries not supported\n" );
1120 num_entries = 256;
1121 }
1122 if (!(num_entries = GetPaletteEntries( hpal, 0, num_entries, entries ))) return 0;
1123
1124 for (i = 0; i < num_entries; i++)
1125 {
1126 index = -1;
1127 flag = PC_SYS_USED;
1128
1129 /* Even though the docs say that only one flag is to be set,
1130 * they are a bitmask. At least one app sets more than one at
1131 * the same time. */
1132 if ( entries[i].peFlags & PC_EXPLICIT ) {
1133 /* palette entries are indices into system palette */
1134 index = *(WORD*)&entries[i];
1135 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1136 {
1137 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1138 index = 0;
1139 }
1140 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1141 } else {
1142 if ( entries[i].peFlags & PC_RESERVED ) {
1143 /* forbid future mappings to this entry */
1144 flag |= PC_SYS_RESERVED;
1145 }
1146
1147 if (! (entries[i].peFlags & PC_NOCOLLAPSE) ) {
1148 /* try to collapse identical colors */
1149 index = X11DRV_LookupSysPaletteExact( entries[i].peRed, entries[i].peGreen, entries[i].peBlue );
1150 }
1151
1152 if( index < 0 )
1153 {
1154 if( X11DRV_PALETTE_firstFree > 0 )
1155 {
1156 XColor color;
1157 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1158 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1159
1160 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1161 color.red = entries[i].peRed << 8;
1162 color.green = entries[i].peGreen << 8;
1163 color.blue = entries[i].peBlue << 8;
1164 color.flags = DoRed | DoGreen | DoBlue;
1165 wine_tsx11_lock();
1166 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1167 wine_tsx11_unlock();
1168
1169 COLOR_sysPal[index] = entries[i];
1170 COLOR_sysPal[index].peFlags = flag;
1171 X11DRV_PALETTE_freeList[index] = 0;
1172
1173 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1174 }
1175 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1176 {
1177 index = X11DRV_PALETTE_ToPhysical( NULL,
1178 RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ));
1179 }
1180
1181 /* we have to map to existing entry in the system palette */
1182
1183 index = X11DRV_SysPaletteLookupPixel( RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ),
1184 TRUE );
1185 }
1186
1187 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1188 }
1189
1190 if( !prev_mapping || mapping[i] != index ) iRemapped++;
1191 mapping[i] = index;
1192
1193 TRACE("entry %i (%x) -> pixel %i\n", i, *(COLORREF*)&entries[i], index);
1194
1195 }
1196 return iRemapped;
1197 }
1198
1199
1200 /***********************************************************************
1201 * UnrealizePalette (X11DRV.@)
1202 */
1203 BOOL X11DRV_UnrealizePalette( HPALETTE hpal )
1204 {
1205 int *mapping = palette_get_mapping( hpal );
1206
1207 if (mapping)
1208 {
1209 wine_tsx11_lock();
1210 XDeleteContext( gdi_display, (XID)hpal, palette_context );
1211 wine_tsx11_unlock();
1212 HeapFree( GetProcessHeap(), 0, mapping );
1213 }
1214 return TRUE;
1215 }
1216
1217
1218 /***********************************************************************
1219 * GetSystemPaletteEntries (X11DRV.@)
1220 */
1221 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1222 LPPALETTEENTRY entries )
1223 {
1224 UINT i;
1225
1226 if (!entries) return palette_size;
1227 if (start >= palette_size) return 0;
1228 if (start + count >= palette_size) count = palette_size - start;
1229
1230 for (i = 0; i < count; i++)
1231 {
1232 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1233 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1234 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1235 entries[i].peFlags = 0;
1236 TRACE("\tidx(%02x) -> RGB(%08x)\n", start + i, *(COLORREF*)(entries + i) );
1237 }
1238 return count;
1239 }
1240
1241
1242 /***********************************************************************
1243 * GetNearestColor (X11DRV.@)
1244 */
1245 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1246 {
1247 unsigned char spec_type = color >> 24;
1248 COLORREF nearest;
1249
1250 if (!palette_size) return color;
1251
1252 if (spec_type == 1 || spec_type == 2)
1253 {
1254 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1255
1256 UINT index;
1257 PALETTEENTRY entry;
1258 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1259
1260 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1261
1262 if (spec_type == 2) /* PALETTERGB */
1263 index = GetNearestPaletteIndex( hpal, color );
1264 else /* PALETTEINDEX */
1265 index = LOWORD(color);
1266
1267 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1268 {
1269 WARN("RGB(%x) : idx %d is out of bounds, assuming NULL\n", color, index );
1270 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1271 }
1272 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1273 }
1274 color &= 0x00ffffff;
1275 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1276
1277 TRACE("(%06x): returning %06x\n", color, nearest );
1278 return nearest;
1279 }
1280
1281
1282 /***********************************************************************
1283 * RealizeDefaultPalette (X11DRV.@)
1284 */
1285 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1286 {
1287 UINT ret = 0;
1288
1289 if (palette_size && GetObjectType(physDev->hdc) != OBJ_MEMDC)
1290 {
1291 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1292 int i, index, *mapping = palette_get_mapping( GetStockObject(DEFAULT_PALETTE) );
1293 PALETTEENTRY entries[NB_RESERVED_COLORS];
1294
1295 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, entries );
1296 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1297 {
1298 index = X11DRV_PALETTE_LookupSystemXPixel( RGB(entries[i].peRed,
1299 entries[i].peGreen,
1300 entries[i].peBlue) );
1301 /* mapping is allocated in COLOR_InitPalette() */
1302 if( index != mapping[i] )
1303 {
1304 mapping[i]=index;
1305 ret++;
1306 }
1307 }
1308 }
1309 return ret;
1310 }
Windows API implementation