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winex11: Create a dummy parent window for composite child windows to avoid using...
[wine.git] / dlls / winex11.drv / palette.c
blob356cb95da7dd6cf6dbe8f836d516aaddd0d8bf11
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
48 #define NB_RESERVED_COLORS 20 /* number of fixed colors in system palette */
49
50 #define PC_SYS_USED 0x80 /* palentry is used (both system and logical) */
51 #define PC_SYS_RESERVED 0x40 /* system palentry is not to be mapped to */
52
53 static PALETTEENTRY *COLOR_sysPal; /* current system palette */
54
55 static int COLOR_gapStart = 256;
56 static int COLOR_gapEnd = -1;
57 static int COLOR_gapFilled = 0;
58
59 Colormap X11DRV_PALETTE_PaletteXColormap = 0;
60 UINT16 X11DRV_PALETTE_PaletteFlags = 0;
61
62 typedef struct {
63 int shift;
64 int scale;
65 int max;
66 } ColorShifts;
67
68 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
69 static ColorShifts X11DRV_PALETTE_PRed = {0,0,0};
70 static ColorShifts X11DRV_PALETTE_LRed = {0,0,0};
71 static ColorShifts X11DRV_PALETTE_PGreen = {0,0,0};
72 static ColorShifts X11DRV_PALETTE_LGreen = {0,0,0};
73 static ColorShifts X11DRV_PALETTE_PBlue = {0,0,0};
74 static ColorShifts X11DRV_PALETTE_LBlue = {0,0,0};
75 static int X11DRV_PALETTE_Graymax = 0;
76
77 static int palette_size;
78
79 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
80 static int X11DRV_PALETTE_firstFree = 0;
81 static unsigned char X11DRV_PALETTE_freeList[256];
82
83 static XContext palette_context; /* X context to associate a color mapping to a palette */
84
85 static CRITICAL_SECTION palette_cs;
86 static CRITICAL_SECTION_DEBUG critsect_debug =
87 {
88 0, 0, &palette_cs,
89 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
90 0, 0, { (DWORD_PTR)(__FILE__ ": palette_cs") }
91 };
92 static CRITICAL_SECTION palette_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
93
94 /**********************************************************************/
95
96 /* Map an EGA index (0..15) to a pixel value in the system color space. */
97
98 int X11DRV_PALETTE_mapEGAPixel[16];
99
100 /**********************************************************************/
101
102 #define NB_COLORCUBE_START_INDEX 63
103 #define NB_PALETTE_EMPTY_VALUE -1
104
105 /* Maps entry in the system palette to X pixel value */
106 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
107
108 /* Maps pixel to the entry in the system palette */
109 int *X11DRV_PALETTE_XPixelToPalette = NULL;
110
111 /**********************************************************************/
112
113 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
114 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
115 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical);
116 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
117 static void X11DRV_PALETTE_FormatSystemPalette(void);
118 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
119 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
120
121
122 /***********************************************************************
123 * palette_get_mapping
124 */
125 static int *palette_get_mapping( HPALETTE hpal )
126 {
127 int *mapping;
128
129 wine_tsx11_lock();
130 if (XFindContext( gdi_display, (XID)hpal, palette_context, (char **)&mapping )) mapping = NULL;
131 wine_tsx11_unlock();
132 return mapping;
133 }
134
135
136 /***********************************************************************
137 * palette_set_mapping
138 */
139 static void palette_set_mapping( HPALETTE hpal, int *mapping )
140 {
141 wine_tsx11_lock();
142 XSaveContext( gdi_display, (XID)hpal, palette_context, (char *)mapping );
143 wine_tsx11_unlock();
144 }
145
146
147 /***********************************************************************
148 * COLOR_Init
149 *
150 * Initialize color management.
151 */
152 int X11DRV_PALETTE_Init(void)
153 {
154 int mask, white, black;
155 int monoPlane;
156 int *mapping;
157 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
158
159 TRACE("initializing palette manager...\n");
160
161 wine_tsx11_lock();
162 palette_context = XUniqueContext();
163 wine_tsx11_unlock();
164 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
165 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
166 monoPlane = 1;
167 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
168 monoPlane++;
169 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
170 palette_size = visual->map_entries;
171
172 switch(visual->class)
173 {
174 case DirectColor:
175 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
176 case GrayScale:
177 case PseudoColor:
178 wine_tsx11_lock();
179 if (private_color_map)
180 {
181 XSetWindowAttributes win_attr;
182
183 X11DRV_PALETTE_PaletteXColormap = XCreateColormap( gdi_display, root_window,
184 visual, AllocAll );
185 if (X11DRV_PALETTE_PaletteXColormap)
186 {
187 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
188
189 monoPlane = 1;
190 for( white = palette_size - 1; !(white & 1); white >>= 1 )
191 monoPlane++;
192
193 if( root_window != DefaultRootWindow(gdi_display) )
194 {
195 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
196 XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
197 }
198 }
199 } else {
200 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
201 visual, AllocNone);
202 }
203 wine_tsx11_unlock();
204 break;
205
206 case StaticGray:
207 wine_tsx11_lock();
208 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
209 visual, AllocNone);
210 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
211 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
212 wine_tsx11_unlock();
213 break;
214
215 case TrueColor:
216 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
217 case StaticColor: {
218 int *depths,nrofdepths;
219 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
220 * depths 1 and 4
221 */
222 wine_tsx11_lock();
223 depths = XListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
224 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
225 monoPlane = 1;
226 for( white = palette_size - 1; !(white & 1); white >>= 1 )
227 monoPlane++;
228 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
229 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
230 visual, AllocNone);
231 }
232 else
233 {
234 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
235 visual, AllocNone);
236 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
237 X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_PRed, &X11DRV_PALETTE_LRed);
238 X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_PGreen, &X11DRV_PALETTE_LGreen);
239 X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_PBlue, &X11DRV_PALETTE_LBlue);
240 }
241 XFree(depths);
242 wine_tsx11_unlock();
243 break;
244 }
245 }
246
247 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
248
249 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
250
251 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
252 {
253 palette_size = 0;
254 }
255 else
256 {
257 if ((mapping = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * NB_RESERVED_COLORS )))
258 palette_set_mapping( GetStockObject(DEFAULT_PALETTE), mapping );
259
260 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
261 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
262 else
263 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
264
265 /* Build free list */
266
267 if( X11DRV_PALETTE_firstFree != -1 )
268 X11DRV_PALETTE_FormatSystemPalette();
269
270 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
271 palette_size = visual->map_entries;
272 }
273
274 return palette_size;
275 }
276
277 /***********************************************************************
278 * X11DRV_PALETTE_Cleanup
279 *
280 * Free external colors we grabbed in the FillDefaultPalette()
281 */
282 void X11DRV_PALETTE_Cleanup(void)
283 {
284 if( COLOR_gapFilled )
285 {
286 wine_tsx11_lock();
287 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
288 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
289 COLOR_gapFilled, 0);
290 wine_tsx11_unlock();
291 }
292 }
293
294 /***********************************************************************
295 * X11DRV_PALETTE_ComputeShifts
296 *
297 * Calculate conversion parameters for direct mapped visuals
298 */
299 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical)
300 {
301 int i;
302
303 if (maskbits==0)
304 {
305 physical->shift=0;
306 physical->scale=0;
307 physical->max=0;
308 to_logical->shift=0;
309 to_logical->scale=0;
310 to_logical->max=0;
311 return;
312 }
313
314 for(i=0;!(maskbits&1);i++)
315 maskbits >>= 1;
316
317 physical->shift = i;
318 physical->max = maskbits;
319
320 for(i=0;maskbits!=0;i++)
321 maskbits >>= 1;
322 physical->scale = i;
323
324 if (physical->scale>8)
325 {
326 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
327 * So we adjust the shifts to also normalize the color fields to
328 * the Win32 standard of 8 bits per color.
329 */
330 to_logical->shift=physical->shift+(physical->scale-8);
331 to_logical->scale=8;
332 to_logical->max=0xff;
333 } else {
334 to_logical->shift=physical->shift;
335 to_logical->scale=physical->scale;
336 to_logical->max=physical->max;
337 }
338 }
339
340 /***********************************************************************
341 * X11DRV_PALETTE_BuildPrivateMap
342 *
343 * Allocate colorcells and initialize mapping tables.
344 */
345 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
346 {
347 /* Private colormap - identity mapping */
348
349 XColor color;
350 int i;
351
352 if((COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
353 WARN("Unable to allocate the system palette\n");
354 return FALSE;
355 }
356
357 TRACE("Building private map - %i palette entries\n", palette_size);
358
359 /* Allocate system palette colors */
360
361 wine_tsx11_lock();
362 for( i=0; i < palette_size; i++ )
363 {
364 if( i < NB_RESERVED_COLORS/2 )
365 {
366 color.red = sys_pal_template[i].peRed * 65535 / 255;
367 color.green = sys_pal_template[i].peGreen * 65535 / 255;
368 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
369 COLOR_sysPal[i] = sys_pal_template[i];
370 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
371 }
372 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
373 {
374 int j = NB_RESERVED_COLORS + i - palette_size;
375 color.red = sys_pal_template[j].peRed * 65535 / 255;
376 color.green = sys_pal_template[j].peGreen * 65535 / 255;
377 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
378 COLOR_sysPal[i] = sys_pal_template[j];
379 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
380 }
381
382 color.flags = DoRed | DoGreen | DoBlue;
383 color.pixel = i;
384 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
385
386 /* Set EGA mapping if color is from the first or last eight */
387
388 if (i < 8)
389 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
390 else if (i >= palette_size - 8 )
391 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
392 }
393 wine_tsx11_unlock();
394
395 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
396
397 COLOR_gapStart = 256; COLOR_gapEnd = -1;
398
399 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
400
401 return FALSE;
402 }
403
404 /***********************************************************************
405 * X11DRV_PALETTE_BuildSharedMap
406 *
407 * Allocate colorcells and initialize mapping tables.
408 */
409 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
410 {
411 XColor color;
412 unsigned long sysPixel[NB_RESERVED_COLORS];
413 unsigned long* pixDynMapping = NULL;
414 unsigned long plane_masks[1];
415 int i, j, warn = 0;
416 int diff, r, g, b, bp = 0, wp = 1;
417 int step = 1;
418 unsigned int max = 256;
419 Colormap defaultCM;
420 XColor defaultColors[256];
421
422 /* Copy the first bunch of colors out of the default colormap to prevent
423 * colormap flashing as much as possible. We're likely to get the most
424 * important Window Manager colors, etc in the first 128 colors */
425 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
426
427 if (copy_default_colors > 256) copy_default_colors = 256;
428 for (i = 0; i < copy_default_colors; i++)
429 defaultColors[i].pixel = (long) i;
430 wine_tsx11_lock();
431 XQueryColors(gdi_display, defaultCM, &defaultColors[0], copy_default_colors);
432 for (i = 0; i < copy_default_colors; i++)
433 XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
434
435 if (alloc_system_colors > 256) alloc_system_colors = 256;
436 else if (alloc_system_colors < 20) alloc_system_colors = 20;
437 TRACE("%d colors configured.\n", alloc_system_colors);
438
439 TRACE("Building shared map - %i palette entries\n", palette_size);
440
441 /* Be nice and allocate system colors as read-only */
442
443 for( i = 0; i < NB_RESERVED_COLORS; i++ )
444 {
445 color.red = sys_pal_template[i].peRed * 65535 / 255;
446 color.green = sys_pal_template[i].peGreen * 65535 / 255;
447 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
448 color.flags = DoRed | DoGreen | DoBlue;
449
450 if (!XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
451 {
452 XColor best, c;
453
454 if( !warn++ )
455 {
456 WARN("Not enough colors for the full system palette.\n");
457
458 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
459 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
460
461 max = (0xffffffff)>>(32 - screen_depth);
462 if( max > 256 )
463 {
464 step = max/256;
465 max = 256;
466 }
467 }
468
469 /* reinit color (XAllocColor() may change it)
470 * and map to the best shared colorcell */
471
472 color.red = sys_pal_template[i].peRed * 65535 / 255;
473 color.green = sys_pal_template[i].peGreen * 65535 / 255;
474 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
475
476 best.pixel = best.red = best.green = best.blue = 0;
477 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
478 {
479 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
480 r = (c.red - color.red)>>8;
481 g = (c.green - color.green)>>8;
482 b = (c.blue - color.blue)>>8;
483 r = r*r + g*g + b*b;
484 if( r < diff ) { best = c; diff = r; }
485 }
486
487 if( XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
488 color.pixel = best.pixel;
489 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
490 }
491
492 sysPixel[i] = color.pixel;
493
494 TRACE("syscolor(%x) -> pixel %i\n", *(const COLORREF*)(sys_pal_template+i),
495 (int)color.pixel);
496
497 /* Set EGA mapping if color in the first or last eight */
498
499 if (i < 8)
500 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
501 else if (i >= NB_RESERVED_COLORS - 8 )
502 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
503 }
504 wine_tsx11_unlock();
505
506 /* now allocate changeable set */
507
508 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
509 {
510 int c_min = 0, c_max = palette_size, c_val;
511
512 TRACE("Dynamic colormap...\n");
513
514 /* let's become the first client that actually follows
515 * X guidelines and does binary search...
516 */
517
518 if((pixDynMapping = HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
519 WARN("Out of memory while building system palette.\n");
520 return FALSE;
521 }
522
523 wine_tsx11_lock();
524 /* comment this out if you want to debug palette init */
525 XGrabServer(gdi_display);
526
527 while( c_max - c_min > 0 )
528 {
529 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
530
531 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
532 plane_masks, 0, pixDynMapping, c_val) )
533 c_max = c_val - 1;
534 else
535 {
536 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
537 c_min = c_val;
538 }
539 }
540
541 if( c_min > alloc_system_colors - NB_RESERVED_COLORS)
542 c_min = alloc_system_colors - NB_RESERVED_COLORS;
543
544 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
545
546 if( c_min > 0 )
547 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
548 plane_masks, 0, pixDynMapping, c_min) )
549 {
550 WARN("Inexplicable failure during colorcell allocation.\n");
551 c_min = 0;
552 }
553
554 palette_size = c_min + NB_RESERVED_COLORS;
555
556 XUngrabServer(gdi_display);
557 wine_tsx11_unlock();
558
559 TRACE("adjusted size %i colorcells\n", palette_size);
560 }
561 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
562 {
563 /* virtual colorspace - ToPhysical takes care of
564 * color translations but we have to allocate full palette
565 * to maintain compatibility
566 */
567 palette_size = 256;
568 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
569 }
570 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
571 * of colors and map to them */
572
573 TRACE("Shared system palette uses %i colors.\n", palette_size);
574
575 /* set gap to account for pixel shortage. It has to be right in the center
576 * of the system palette because otherwise raster ops get screwed. */
577
578 if( palette_size >= 256 )
579 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
580 else
581 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
582
583 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
584 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
585 ? NB_RESERVED_COLORS/2 : -1;
586
587 COLOR_sysPal = HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
588 if(COLOR_sysPal == NULL) {
589 ERR("Unable to allocate the system palette!\n");
590 HeapFree(GetProcessHeap(), 0, pixDynMapping);
591 return FALSE;
592 }
593
594 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
595
596 if (screen_depth <= 8)
597 {
598 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
599 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
600 ERR("Out of memory: XPixelToPalette!\n");
601 HeapFree(GetProcessHeap(), 0, pixDynMapping);
602 return FALSE;
603 }
604 for( i = 0; i < 256; i++ )
605 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
606 }
607
608 /* for hicolor visuals PaletteToPixel mapping is used to skip
609 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
610 */
611
612 X11DRV_PALETTE_PaletteToXPixel = HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
613 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
614 ERR("Out of memory: PaletteToXPixel!\n");
615 HeapFree(GetProcessHeap(), 0, pixDynMapping);
616 return FALSE;
617 }
618
619 for( i = j = 0; i < 256; i++ )
620 {
621 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
622 {
623 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
624 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
625 continue;
626 }
627
628 if( i < NB_RESERVED_COLORS/2 )
629 {
630 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
631 COLOR_sysPal[i] = sys_pal_template[i];
632 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
633 }
634 else if( i >= 256 - NB_RESERVED_COLORS/2 )
635 {
636 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
637 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
638 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
639 }
640 else if( pixDynMapping )
641 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
642 else
643 X11DRV_PALETTE_PaletteToXPixel[i] = i;
644
645 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
646
647 if( X11DRV_PALETTE_XPixelToPalette )
648 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
649 }
650
651 HeapFree(GetProcessHeap(), 0, pixDynMapping);
652
653 return TRUE;
654 }
655
656 /***********************************************************************
657 * Colormap Initialization
658 */
659 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
660 {
661 /* initialize unused entries to what Windows uses as a color
662 * cube - based on Greg Kreider's code.
663 */
664
665 int i = 0, idx = 0;
666 int red, no_r, inc_r;
667 int green, no_g, inc_g;
668 int blue, no_b, inc_b;
669
670 if (palette_size <= NB_RESERVED_COLORS)
671 return;
672 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
673 no_r = no_g = no_b = --i;
674 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
675 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
676 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
677 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
678 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
679
680 wine_tsx11_lock();
681
682 idx = X11DRV_PALETTE_firstFree;
683
684 if( idx != -1 )
685 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
686 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
687 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
688 {
689 /* weird but true */
690
691 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
692
693 COLOR_sysPal[idx].peRed = red;
694 COLOR_sysPal[idx].peGreen = green;
695 COLOR_sysPal[idx].peBlue = blue;
696
697 /* set X color */
698
699 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
700 {
701 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
702 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
703 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
704
705 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
706 }
707 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
708 {
709 XColor color;
710 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
711 color.red = COLOR_sysPal[idx].peRed << 8;
712 color.green = COLOR_sysPal[idx].peGreen << 8;
713 color.blue = COLOR_sysPal[idx].peBlue << 8;
714 color.flags = DoRed | DoGreen | DoBlue;
715 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
716 }
717 idx = X11DRV_PALETTE_freeList[idx];
718 }
719
720 /* try to fill some entries in the "gap" with
721 * what's already in the colormap - they will be
722 * mappable to but not changeable. */
723
724 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
725 {
726 XColor xc;
727 int r, g, b, max;
728
729 max = alloc_system_colors - (256 - (COLOR_gapEnd - COLOR_gapStart));
730 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
731 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
732 {
733 xc.pixel = i;
734
735 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
736 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
737
738 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
739 XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
740 {
741 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
742 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
743 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
744 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
745 if( --max <= 0 ) break;
746 }
747 }
748 COLOR_gapFilled = idx - COLOR_gapStart;
749 }
750 wine_tsx11_unlock();
751 }
752
753
754 /***********************************************************************
755 * X11DRV_IsSolidColor
756 *
757 * Check whether 'color' can be represented with a solid color.
758 */
759 BOOL X11DRV_IsSolidColor( COLORREF color )
760 {
761 int i;
762 const PALETTEENTRY *pEntry = COLOR_sysPal;
763
764 if (color & 0xff000000) return TRUE; /* indexed color */
765
766 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
767
768 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return TRUE; /* no palette */
769
770 EnterCriticalSection( &palette_cs );
771 for (i = 0; i < palette_size ; i++, pEntry++)
772 {
773 if( i < COLOR_gapStart || i > COLOR_gapEnd )
774 if ((GetRValue(color) == pEntry->peRed) &&
775 (GetGValue(color) == pEntry->peGreen) &&
776 (GetBValue(color) == pEntry->peBlue))
777 {
778 LeaveCriticalSection( &palette_cs );
779 return TRUE;
780 }
781 }
782 LeaveCriticalSection( &palette_cs );
783 return FALSE;
784 }
785
786
787 /***********************************************************************
788 * X11DRV_PALETTE_ToLogical
789 *
790 * Return RGB color for given X pixel.
791 */
792 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
793 {
794 XColor color;
795
796 #if 0
797 /* truecolor visual */
798
799 if (screen_depth >= 24) return pixel;
800 #endif
801
802 /* check for hicolor visuals first */
803
804 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
805 {
806 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
807 if (X11DRV_PALETTE_LRed.scale<8)
808 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
809 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
810 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
811 if (X11DRV_PALETTE_LGreen.scale<8)
812 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
813 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
814 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
815 if (X11DRV_PALETTE_LBlue.scale<8)
816 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
817 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
818 return RGB(color.red,color.green,color.blue);
819 }
820
821 /* check if we can bypass X */
822
823 if ((screen_depth <= 8) && (pixel < 256) &&
824 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
825 COLORREF ret;
826 EnterCriticalSection( &palette_cs );
827 ret = *(COLORREF *)(COLOR_sysPal + (X11DRV_PALETTE_XPixelToPalette ? X11DRV_PALETTE_XPixelToPalette[pixel]: pixel)) & 0x00ffffff;
828 LeaveCriticalSection( &palette_cs );
829 return ret;
830 }
831
832 wine_tsx11_lock();
833 color.pixel = pixel;
834 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
835 wine_tsx11_unlock();
836 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
837 }
838
839
840 /***********************************************************************
841 * X11DRV_SysPaletteLookupPixel
842 */
843 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
844 {
845 int i, best = 0, diff = 0x7fffffff;
846 int r,g,b;
847
848 for( i = 0; i < palette_size && diff ; i++ )
849 {
850 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
851 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
852 continue;
853
854 r = COLOR_sysPal[i].peRed - GetRValue(col);
855 g = COLOR_sysPal[i].peGreen - GetGValue(col);
856 b = COLOR_sysPal[i].peBlue - GetBValue(col);
857
858 r = r*r + g*g + b*b;
859
860 if( r < diff ) { best = i; diff = r; }
861 }
862 return best;
863 }
864
865
866 static inline BOOL colour_is_brighter(RGBQUAD c1, RGBQUAD c2)
867 {
868 return (c1.rgbRed * c1.rgbRed + c1.rgbGreen * c1.rgbGreen + c1.rgbBlue * c1.rgbBlue) >
869 (c2.rgbRed * c2.rgbRed + c2.rgbGreen * c2.rgbGreen + c2.rgbBlue * c2.rgbBlue);
870 }
871
872 /***********************************************************************
873 * X11DRV_PALETTE_ToPhysical
874 *
875 * Return the physical color closest to 'color'.
876 */
877 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
878 {
879 WORD index = 0;
880 HPALETTE hPal = physDev ? GetCurrentObject(physDev->hdc, OBJ_PAL ) : GetStockObject(DEFAULT_PALETTE);
881 unsigned char spec_type = color >> 24;
882 int *mapping = palette_get_mapping( hPal );
883 PALETTEENTRY entry;
884
885 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
886 {
887 /* there is no colormap limitation; we are going to have to compute
888 * the pixel value from the visual information stored earlier
889 */
890
891 unsigned long red, green, blue;
892 unsigned idx = color & 0xffff;
893 RGBQUAD quad;
894
895 switch(spec_type)
896 {
897 case 0x10: /* DIBINDEX */
898 if( GetDIBColorTable( physDev->hdc, idx, 1, &quad ) != 1 ) {
899 WARN("DIBINDEX(%x) : idx %d is out of bounds, assuming black\n", color , idx);
900 return 0;
901 }
902 color = RGB( quad.rgbRed, quad.rgbGreen, quad.rgbBlue );
903 break;
904
905 case 1: /* PALETTEINDEX */
906 if (!GetPaletteEntries( hPal, idx, 1, &entry ))
907 {
908 WARN("PALETTEINDEX(%x) : idx %d is out of bounds, assuming black\n", color, idx);
909 return 0;
910 }
911 if (mapping) return mapping[idx];
912 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
913 break;
914
915 default:
916 color &= 0xffffff;
917 /* fall through to RGB */
918
919 case 0: /* RGB */
920 if (physDev && (physDev->depth == 1) )
921 {
922 int white = 1;
923 RGBQUAD table[2];
924
925 if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
926 {
927 if(!colour_is_brighter(table[1], table[0])) white = 0;
928 }
929 return (((color >> 16) & 0xff) +
930 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? white : 1 - white;
931 }
932
933 }
934
935 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
936
937 if (X11DRV_PALETTE_Graymax)
938 {
939 /* grayscale only; return scaled value */
940 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
941 }
942 else
943 {
944 /* scale each individually and construct the TrueColor pixel value */
945 if (X11DRV_PALETTE_PRed.scale < 8)
946 red = red >> (8-X11DRV_PALETTE_PRed.scale);
947 else if (X11DRV_PALETTE_PRed.scale > 8)
948 red = red << (X11DRV_PALETTE_PRed.scale-8) |
949 red >> (16-X11DRV_PALETTE_PRed.scale);
950 if (X11DRV_PALETTE_PGreen.scale < 8)
951 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
952 else if (X11DRV_PALETTE_PGreen.scale > 8)
953 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
954 green >> (16-X11DRV_PALETTE_PGreen.scale);
955 if (X11DRV_PALETTE_PBlue.scale < 8)
956 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
957 else if (X11DRV_PALETTE_PBlue.scale > 8)
958 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
959 blue >> (16-X11DRV_PALETTE_PBlue.scale);
960
961 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
962 }
963 }
964 else
965 {
966 if (!mapping)
967 WARN("Palette %p is not realized\n", hPal);
968
969 switch(spec_type) /* we have to peruse DC and system palette */
970 {
971 default:
972 color &= 0xffffff;
973 /* fall through to RGB */
974
975 case 0: /* RGB */
976 if (physDev && (physDev->depth == 1) )
977 {
978 int white = 1;
979 RGBQUAD table[2];
980
981 if (GetDIBColorTable( physDev->hdc, 0, 2, table ) == 2)
982 {
983 if(!colour_is_brighter(table[1], table[0]))
984 white = 0;
985 }
986 return (((color >> 16) & 0xff) +
987 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? white : 1 - white;
988 }
989
990 EnterCriticalSection( &palette_cs );
991 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
992 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
993 LeaveCriticalSection( &palette_cs );
994
995 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
996 */
997 break;
998 case 1: /* PALETTEINDEX */
999 index = color & 0xffff;
1000 if (!GetPaletteEntries( hPal, index, 1, &entry ))
1001 WARN("PALETTEINDEX(%x) : index %i is out of bounds\n", color, index);
1002 else if (mapping) index = mapping[index];
1003
1004 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
1005 */
1006 break;
1007 case 2: /* PALETTERGB */
1008 index = GetNearestPaletteIndex( hPal, color );
1009 if (mapping) index = mapping[index];
1010 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
1011 */
1012 break;
1013 }
1014 }
1015 return index;
1016 }
1017
1018 /***********************************************************************
1019 * X11DRV_PALETTE_LookupSystemXPixel
1020 */
1021 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
1022 {
1023 int i, best = 0, diff = 0x7fffffff;
1024 int size = palette_size;
1025 int r,g,b;
1026
1027 for( i = 0; i < size && diff ; i++ )
1028 {
1029 if( i == NB_RESERVED_COLORS/2 )
1030 {
1031 int newi = size - NB_RESERVED_COLORS/2;
1032 if (newi>i) i=newi;
1033 }
1034
1035 r = COLOR_sysPal[i].peRed - GetRValue(col);
1036 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1037 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1038
1039 r = r*r + g*g + b*b;
1040
1041 if( r < diff ) { best = i; diff = r; }
1042 }
1043
1044 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1045 }
1046
1047 /***********************************************************************
1048 * X11DRV_PALETTE_FormatSystemPalette
1049 */
1050 static void X11DRV_PALETTE_FormatSystemPalette(void)
1051 {
1052 /* Build free list so we'd have an easy way to find
1053 * out if there are any available colorcells.
1054 */
1055
1056 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1057
1058 COLOR_sysPal[j].peFlags = 0;
1059 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1060 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1061 {
1062 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1063 X11DRV_PALETTE_freeList[j] = i; /* next */
1064 j = i;
1065 }
1066 X11DRV_PALETTE_freeList[j] = 0;
1067 }
1068
1069 /***********************************************************************
1070 * X11DRV_PALETTE_CheckSysColor
1071 */
1072 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1073 {
1074 int i;
1075 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1076 if( c == (*(const COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1077 return 0;
1078 return 1;
1079 }
1080
1081
1082 /***********************************************************************
1083 * X11DRV_LookupSysPaletteExact
1084 */
1085 static int X11DRV_LookupSysPaletteExact( BYTE r, BYTE g, BYTE b )
1086 {
1087 int i;
1088 for( i = 0; i < palette_size; i++ )
1089 {
1090 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1091 if( COLOR_sysPal[i].peRed == r &&
1092 COLOR_sysPal[i].peGreen == g &&
1093 COLOR_sysPal[i].peBlue == b )
1094 return i;
1095 }
1096 return -1;
1097 }
1098
1099
1100 /***********************************************************************
1101 * RealizePalette (X11DRV.@)
1102 */
1103 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1104 {
1105 char flag;
1106 int index;
1107 UINT i, iRemapped = 0;
1108 int *prev_mapping, *mapping;
1109 PALETTEENTRY entries[256];
1110 WORD num_entries;
1111
1112 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1113
1114 if (!GetObjectW( hpal, sizeof(num_entries), &num_entries )) return 0;
1115
1116 /* initialize palette mapping table */
1117 prev_mapping = palette_get_mapping( hpal );
1118 if (prev_mapping)
1119 mapping = HeapReAlloc( GetProcessHeap(), 0, prev_mapping, sizeof(int)*num_entries);
1120 else
1121 mapping = HeapAlloc( GetProcessHeap(), 0, sizeof(int)*num_entries);
1122
1123 if(mapping == NULL) {
1124 ERR("Unable to allocate new mapping -- memory exhausted!\n");
1125 return 0;
1126 }
1127 palette_set_mapping( hpal, mapping );
1128
1129 if (num_entries > 256)
1130 {
1131 FIXME( "more than 256 entries not supported\n" );
1132 num_entries = 256;
1133 }
1134 if (!(num_entries = GetPaletteEntries( hpal, 0, num_entries, entries ))) return 0;
1135
1136 /* reset dynamic system palette entries */
1137
1138 EnterCriticalSection( &palette_cs );
1139 if( primary && X11DRV_PALETTE_firstFree != -1)
1140 X11DRV_PALETTE_FormatSystemPalette();
1141
1142 for (i = 0; i < num_entries; i++)
1143 {
1144 index = -1;
1145 flag = PC_SYS_USED;
1146
1147 /* Even though the docs say that only one flag is to be set,
1148 * they are a bitmask. At least one app sets more than one at
1149 * the same time. */
1150 if ( entries[i].peFlags & PC_EXPLICIT ) {
1151 /* palette entries are indices into system palette */
1152 index = *(WORD*)&entries[i];
1153 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1154 {
1155 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1156 index = 0;
1157 }
1158 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1159 } else {
1160 if ( entries[i].peFlags & PC_RESERVED ) {
1161 /* forbid future mappings to this entry */
1162 flag |= PC_SYS_RESERVED;
1163 }
1164
1165 if (! (entries[i].peFlags & PC_NOCOLLAPSE) ) {
1166 /* try to collapse identical colors */
1167 index = X11DRV_LookupSysPaletteExact( entries[i].peRed, entries[i].peGreen, entries[i].peBlue );
1168 }
1169
1170 if( index < 0 )
1171 {
1172 if( X11DRV_PALETTE_firstFree > 0 )
1173 {
1174 XColor color;
1175 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1176 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1177
1178 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1179 color.red = entries[i].peRed << 8;
1180 color.green = entries[i].peGreen << 8;
1181 color.blue = entries[i].peBlue << 8;
1182 color.flags = DoRed | DoGreen | DoBlue;
1183 wine_tsx11_lock();
1184 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1185 wine_tsx11_unlock();
1186
1187 COLOR_sysPal[index] = entries[i];
1188 COLOR_sysPal[index].peFlags = flag;
1189 X11DRV_PALETTE_freeList[index] = 0;
1190
1191 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1192 }
1193 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1194 {
1195 index = X11DRV_PALETTE_ToPhysical( NULL,
1196 RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ));
1197 }
1198
1199 /* we have to map to existing entry in the system palette */
1200
1201 index = X11DRV_SysPaletteLookupPixel( RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ),
1202 TRUE );
1203 }
1204
1205 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1206 }
1207
1208 if( !prev_mapping || mapping[i] != index ) iRemapped++;
1209 mapping[i] = index;
1210
1211 TRACE("entry %i (%x) -> pixel %i\n", i, *(COLORREF*)&entries[i], index);
1212
1213 }
1214 LeaveCriticalSection( &palette_cs );
1215 return iRemapped;
1216 }
1217
1218
1219 /***********************************************************************
1220 * UnrealizePalette (X11DRV.@)
1221 */
1222 BOOL X11DRV_UnrealizePalette( HPALETTE hpal )
1223 {
1224 int *mapping = palette_get_mapping( hpal );
1225
1226 if (mapping)
1227 {
1228 wine_tsx11_lock();
1229 XDeleteContext( gdi_display, (XID)hpal, palette_context );
1230 wine_tsx11_unlock();
1231 HeapFree( GetProcessHeap(), 0, mapping );
1232 }
1233 return TRUE;
1234 }
1235
1236
1237 /***********************************************************************
1238 * GetSystemPaletteEntries (X11DRV.@)
1239 */
1240 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1241 LPPALETTEENTRY entries )
1242 {
1243 UINT i;
1244
1245 if (!entries) return palette_size;
1246 if (start >= palette_size) return 0;
1247 if (start + count >= palette_size) count = palette_size - start;
1248
1249 EnterCriticalSection( &palette_cs );
1250 for (i = 0; i < count; i++)
1251 {
1252 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1253 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1254 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1255 entries[i].peFlags = 0;
1256 TRACE("\tidx(%02x) -> RGB(%08x)\n", start + i, *(COLORREF*)(entries + i) );
1257 }
1258 LeaveCriticalSection( &palette_cs );
1259 return count;
1260 }
1261
1262
1263 /***********************************************************************
1264 * GetNearestColor (X11DRV.@)
1265 */
1266 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1267 {
1268 unsigned char spec_type = color >> 24;
1269 COLORREF nearest;
1270
1271 if (!palette_size) return color;
1272
1273 if (spec_type == 1 || spec_type == 2)
1274 {
1275 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1276
1277 UINT index;
1278 PALETTEENTRY entry;
1279 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1280
1281 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1282
1283 if (spec_type == 2) /* PALETTERGB */
1284 index = GetNearestPaletteIndex( hpal, color );
1285 else /* PALETTEINDEX */
1286 index = LOWORD(color);
1287
1288 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1289 {
1290 WARN("RGB(%x) : idx %d is out of bounds, assuming NULL\n", color, index );
1291 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1292 }
1293 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1294 }
1295 color &= 0x00ffffff;
1296 EnterCriticalSection( &palette_cs );
1297 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1298 LeaveCriticalSection( &palette_cs );
1299
1300 TRACE("(%06x): returning %06x\n", color, nearest );
1301 return nearest;
1302 }
1303
1304
1305 /***********************************************************************
1306 * RealizeDefaultPalette (X11DRV.@)
1307 */
1308 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1309 {
1310 UINT ret = 0;
1311
1312 if (palette_size && GetObjectType(physDev->hdc) != OBJ_MEMDC)
1313 {
1314 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1315 int i, index, *mapping = palette_get_mapping( GetStockObject(DEFAULT_PALETTE) );
1316 PALETTEENTRY entries[NB_RESERVED_COLORS];
1317
1318 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, entries );
1319 EnterCriticalSection( &palette_cs );
1320 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1321 {
1322 index = X11DRV_PALETTE_LookupSystemXPixel( RGB(entries[i].peRed,
1323 entries[i].peGreen,
1324 entries[i].peBlue) );
1325 /* mapping is allocated in COLOR_InitPalette() */
1326 if( index != mapping[i] )
1327 {
1328 mapping[i]=index;
1329 ret++;
1330 }
1331 }
1332 LeaveCriticalSection( &palette_cs );
1333 }
1334 return ret;
1335 }
Windows API implementation