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user32: Rearrange ComboBox repositioning code.
[wine.git] / dlls / winex11.drv / palette.c
blobec0f42c5ac5f42a88b7db9c0de469746467051c0
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 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
63 ColorShifts X11DRV_PALETTE_default_shifts = { {0,0,0,}, {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0} };
64 static int X11DRV_PALETTE_Graymax = 0;
65
66 static int palette_size;
67
68 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
69 static int X11DRV_PALETTE_firstFree = 0;
70 static unsigned char X11DRV_PALETTE_freeList[256];
71
72 static XContext palette_context; /* X context to associate a color mapping to a palette */
73
74 static CRITICAL_SECTION palette_cs;
75 static CRITICAL_SECTION_DEBUG critsect_debug =
76 {
77 0, 0, &palette_cs,
78 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
79 0, 0, { (DWORD_PTR)(__FILE__ ": palette_cs") }
80 };
81 static CRITICAL_SECTION palette_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
82
83 /**********************************************************************/
84
85 /* Map an EGA index (0..15) to a pixel value in the system color space. */
86
87 int X11DRV_PALETTE_mapEGAPixel[16];
88
89 /**********************************************************************/
90
91 #define NB_COLORCUBE_START_INDEX 63
92 #define NB_PALETTE_EMPTY_VALUE -1
93
94 /* Maps entry in the system palette to X pixel value */
95 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
96
97 /* Maps pixel to the entry in the system palette */
98 int *X11DRV_PALETTE_XPixelToPalette = NULL;
99
100 /**********************************************************************/
101
102 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
103 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
104 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
105 static void X11DRV_PALETTE_FormatSystemPalette(void);
106 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
107 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
108
109
110 /***********************************************************************
111 * palette_get_mapping
112 */
113 static int *palette_get_mapping( HPALETTE hpal )
114 {
115 int *mapping;
116
117 wine_tsx11_lock();
118 if (XFindContext( gdi_display, (XID)hpal, palette_context, (char **)&mapping )) mapping = NULL;
119 wine_tsx11_unlock();
120 return mapping;
121 }
122
123
124 /***********************************************************************
125 * palette_set_mapping
126 */
127 static void palette_set_mapping( HPALETTE hpal, int *mapping )
128 {
129 wine_tsx11_lock();
130 XSaveContext( gdi_display, (XID)hpal, palette_context, (char *)mapping );
131 wine_tsx11_unlock();
132 }
133
134
135 /***********************************************************************
136 * COLOR_Init
137 *
138 * Initialize color management.
139 */
140 int X11DRV_PALETTE_Init(void)
141 {
142 int mask, white, black;
143 int monoPlane;
144 int *mapping;
145 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
146
147 TRACE("initializing palette manager...\n");
148
149 wine_tsx11_lock();
150 palette_context = XUniqueContext();
151 wine_tsx11_unlock();
152 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
153 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
154 monoPlane = 1;
155 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
156 monoPlane++;
157 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
158 palette_size = visual->map_entries;
159
160 switch(visual->class)
161 {
162 case DirectColor:
163 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
164 case GrayScale:
165 case PseudoColor:
166 wine_tsx11_lock();
167 if (private_color_map)
168 {
169 XSetWindowAttributes win_attr;
170
171 X11DRV_PALETTE_PaletteXColormap = XCreateColormap( gdi_display, root_window,
172 visual, AllocAll );
173 if (X11DRV_PALETTE_PaletteXColormap)
174 {
175 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
176
177 monoPlane = 1;
178 for( white = palette_size - 1; !(white & 1); white >>= 1 )
179 monoPlane++;
180
181 if( root_window != DefaultRootWindow(gdi_display) )
182 {
183 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
184 XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
185 }
186 }
187 } else {
188 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
189 visual, AllocNone);
190 }
191 wine_tsx11_unlock();
192 break;
193
194 case StaticGray:
195 wine_tsx11_lock();
196 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
197 visual, AllocNone);
198 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
199 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
200 wine_tsx11_unlock();
201 break;
202
203 case TrueColor:
204 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
205 case StaticColor: {
206 int *depths,nrofdepths;
207 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
208 * depths 1 and 4
209 */
210 wine_tsx11_lock();
211 depths = XListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
212 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
213 monoPlane = 1;
214 for( white = palette_size - 1; !(white & 1); white >>= 1 )
215 monoPlane++;
216 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
217 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
218 visual, AllocNone);
219 }
220 else
221 {
222 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
223 visual, AllocNone);
224 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
225 X11DRV_PALETTE_ComputeColorShifts(&X11DRV_PALETTE_default_shifts, visual->red_mask, visual->green_mask, visual->blue_mask);
226 }
227 XFree(depths);
228 wine_tsx11_unlock();
229 break;
230 }
231 }
232
233 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
234
235 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
236
237 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
238 {
239 palette_size = 0;
240 }
241 else
242 {
243 if ((mapping = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * NB_RESERVED_COLORS )))
244 palette_set_mapping( GetStockObject(DEFAULT_PALETTE), mapping );
245
246 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
247 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
248 else
249 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
250
251 /* Build free list */
252
253 if( X11DRV_PALETTE_firstFree != -1 )
254 X11DRV_PALETTE_FormatSystemPalette();
255
256 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
257 palette_size = visual->map_entries;
258 }
259
260 return palette_size;
261 }
262
263 /***********************************************************************
264 * X11DRV_PALETTE_Cleanup
265 *
266 * Free external colors we grabbed in the FillDefaultPalette()
267 */
268 void X11DRV_PALETTE_Cleanup(void)
269 {
270 if( COLOR_gapFilled )
271 {
272 wine_tsx11_lock();
273 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
274 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
275 COLOR_gapFilled, 0);
276 wine_tsx11_unlock();
277 }
278 DeleteCriticalSection(&palette_cs);
279 }
280
281 /***********************************************************************
282 * X11DRV_PALETTE_ComputeChannelShift
283 *
284 * Calculate conversion parameters for a given color mask
285 */
286 static void X11DRV_PALETTE_ComputeChannelShift(unsigned long maskbits, ChannelShift *physical, ChannelShift *to_logical)
287 {
288 int i;
289
290 if (maskbits==0)
291 {
292 physical->shift=0;
293 physical->scale=0;
294 physical->max=0;
295 to_logical->shift=0;
296 to_logical->scale=0;
297 to_logical->max=0;
298 return;
299 }
300
301 for(i=0;!(maskbits&1);i++)
302 maskbits >>= 1;
303
304 physical->shift = i;
305 physical->max = maskbits;
306
307 for(i=0;maskbits!=0;i++)
308 maskbits >>= 1;
309 physical->scale = i;
310
311 if (physical->scale>8)
312 {
313 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
314 * So we adjust the shifts to also normalize the color fields to
315 * the Win32 standard of 8 bits per color.
316 */
317 to_logical->shift=physical->shift+(physical->scale-8);
318 to_logical->scale=8;
319 to_logical->max=0xff;
320 } else {
321 to_logical->shift=physical->shift;
322 to_logical->scale=physical->scale;
323 to_logical->max=physical->max;
324 }
325 }
326
327 /***********************************************************************
328 * X11DRV_PALETTE_ComputeColorShifts
329 *
330 * Calculate conversion parameters for a given color
331 */
332 void X11DRV_PALETTE_ComputeColorShifts(ColorShifts *shifts, unsigned long redMask, unsigned long greenMask, unsigned long blueMask)
333 {
334 X11DRV_PALETTE_ComputeChannelShift(redMask, &shifts->physicalRed, &shifts->logicalRed);
335 X11DRV_PALETTE_ComputeChannelShift(greenMask, &shifts->physicalGreen, &shifts->logicalGreen);
336 X11DRV_PALETTE_ComputeChannelShift(blueMask, &shifts->physicalBlue, &shifts->logicalBlue);
337 }
338
339 /***********************************************************************
340 * X11DRV_PALETTE_BuildPrivateMap
341 *
342 * Allocate colorcells and initialize mapping tables.
343 */
344 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
345 {
346 /* Private colormap - identity mapping */
347
348 XColor color;
349 int i;
350
351 if((COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
352 WARN("Unable to allocate the system palette\n");
353 return FALSE;
354 }
355
356 TRACE("Building private map - %i palette entries\n", palette_size);
357
358 /* Allocate system palette colors */
359
360 wine_tsx11_lock();
361 for( i=0; i < palette_size; i++ )
362 {
363 if( i < NB_RESERVED_COLORS/2 )
364 {
365 color.red = sys_pal_template[i].peRed * 65535 / 255;
366 color.green = sys_pal_template[i].peGreen * 65535 / 255;
367 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
368 COLOR_sysPal[i] = sys_pal_template[i];
369 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
370 }
371 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
372 {
373 int j = NB_RESERVED_COLORS + i - palette_size;
374 color.red = sys_pal_template[j].peRed * 65535 / 255;
375 color.green = sys_pal_template[j].peGreen * 65535 / 255;
376 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
377 COLOR_sysPal[i] = sys_pal_template[j];
378 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
379 }
380
381 color.flags = DoRed | DoGreen | DoBlue;
382 color.pixel = i;
383 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
384
385 /* Set EGA mapping if color is from the first or last eight */
386
387 if (i < 8)
388 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
389 else if (i >= palette_size - 8 )
390 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
391 }
392 wine_tsx11_unlock();
393
394 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
395
396 COLOR_gapStart = 256; COLOR_gapEnd = -1;
397
398 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
399
400 return FALSE;
401 }
402
403 /***********************************************************************
404 * X11DRV_PALETTE_BuildSharedMap
405 *
406 * Allocate colorcells and initialize mapping tables.
407 */
408 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
409 {
410 XColor color;
411 unsigned long sysPixel[NB_RESERVED_COLORS];
412 unsigned long* pixDynMapping = NULL;
413 unsigned long plane_masks[1];
414 int i, j, warn = 0;
415 int diff, r, g, b, bp = 0, wp = 1;
416 int step = 1;
417 unsigned int max = 256;
418 Colormap defaultCM;
419 XColor defaultColors[256];
420
421 /* Copy the first bunch of colors out of the default colormap to prevent
422 * colormap flashing as much as possible. We're likely to get the most
423 * important Window Manager colors, etc in the first 128 colors */
424 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
425
426 if (copy_default_colors > 256) copy_default_colors = 256;
427 for (i = 0; i < copy_default_colors; i++)
428 defaultColors[i].pixel = (long) i;
429 wine_tsx11_lock();
430 XQueryColors(gdi_display, defaultCM, &defaultColors[0], copy_default_colors);
431 for (i = 0; i < copy_default_colors; i++)
432 XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
433
434 if (alloc_system_colors > 256) alloc_system_colors = 256;
435 else if (alloc_system_colors < 20) alloc_system_colors = 20;
436 TRACE("%d colors configured.\n", alloc_system_colors);
437
438 TRACE("Building shared map - %i palette entries\n", palette_size);
439
440 /* Be nice and allocate system colors as read-only */
441
442 for( i = 0; i < NB_RESERVED_COLORS; i++ )
443 {
444 color.red = sys_pal_template[i].peRed * 65535 / 255;
445 color.green = sys_pal_template[i].peGreen * 65535 / 255;
446 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
447 color.flags = DoRed | DoGreen | DoBlue;
448
449 if (!XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
450 {
451 XColor best, c;
452
453 if( !warn++ )
454 {
455 WARN("Not enough colors for the full system palette.\n");
456
457 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
458 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
459
460 max = (0xffffffff)>>(32 - screen_depth);
461 if( max > 256 )
462 {
463 step = max/256;
464 max = 256;
465 }
466 }
467
468 /* reinit color (XAllocColor() may change it)
469 * and map to the best shared colorcell */
470
471 color.red = sys_pal_template[i].peRed * 65535 / 255;
472 color.green = sys_pal_template[i].peGreen * 65535 / 255;
473 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
474
475 best.pixel = best.red = best.green = best.blue = 0;
476 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
477 {
478 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
479 r = (c.red - color.red)>>8;
480 g = (c.green - color.green)>>8;
481 b = (c.blue - color.blue)>>8;
482 r = r*r + g*g + b*b;
483 if( r < diff ) { best = c; diff = r; }
484 }
485
486 if( XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
487 color.pixel = best.pixel;
488 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
489 }
490
491 sysPixel[i] = color.pixel;
492
493 TRACE("syscolor(%x) -> pixel %i\n", *(const COLORREF*)(sys_pal_template+i),
494 (int)color.pixel);
495
496 /* Set EGA mapping if color in the first or last eight */
497
498 if (i < 8)
499 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
500 else if (i >= NB_RESERVED_COLORS - 8 )
501 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
502 }
503 wine_tsx11_unlock();
504
505 /* now allocate changeable set */
506
507 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
508 {
509 int c_min = 0, c_max = palette_size, c_val;
510
511 TRACE("Dynamic colormap...\n");
512
513 /* let's become the first client that actually follows
514 * X guidelines and does binary search...
515 */
516
517 if((pixDynMapping = HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
518 WARN("Out of memory while building system palette.\n");
519 return FALSE;
520 }
521
522 wine_tsx11_lock();
523 /* comment this out if you want to debug palette init */
524 XGrabServer(gdi_display);
525
526 while( c_max - c_min > 0 )
527 {
528 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
529
530 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
531 plane_masks, 0, pixDynMapping, c_val) )
532 c_max = c_val - 1;
533 else
534 {
535 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
536 c_min = c_val;
537 }
538 }
539
540 if( c_min > alloc_system_colors - NB_RESERVED_COLORS)
541 c_min = alloc_system_colors - NB_RESERVED_COLORS;
542
543 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
544
545 if( c_min > 0 )
546 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
547 plane_masks, 0, pixDynMapping, c_min) )
548 {
549 WARN("Inexplicable failure during colorcell allocation.\n");
550 c_min = 0;
551 }
552
553 palette_size = c_min + NB_RESERVED_COLORS;
554
555 XUngrabServer(gdi_display);
556 wine_tsx11_unlock();
557
558 TRACE("adjusted size %i colorcells\n", palette_size);
559 }
560 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
561 {
562 /* virtual colorspace - ToPhysical takes care of
563 * color translations but we have to allocate full palette
564 * to maintain compatibility
565 */
566 palette_size = 256;
567 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
568 }
569 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
570 * of colors and map to them */
571
572 TRACE("Shared system palette uses %i colors.\n", palette_size);
573
574 /* set gap to account for pixel shortage. It has to be right in the center
575 * of the system palette because otherwise raster ops get screwed. */
576
577 if( palette_size >= 256 )
578 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
579 else
580 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
581
582 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
583 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
584 ? NB_RESERVED_COLORS/2 : -1;
585
586 COLOR_sysPal = HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
587 if(COLOR_sysPal == NULL) {
588 ERR("Unable to allocate the system palette!\n");
589 HeapFree(GetProcessHeap(), 0, pixDynMapping);
590 return FALSE;
591 }
592
593 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
594
595 if (screen_depth <= 8)
596 {
597 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
598 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
599 ERR("Out of memory: XPixelToPalette!\n");
600 HeapFree(GetProcessHeap(), 0, pixDynMapping);
601 return FALSE;
602 }
603 for( i = 0; i < 256; i++ )
604 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
605 }
606
607 /* for hicolor visuals PaletteToPixel mapping is used to skip
608 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
609 */
610
611 X11DRV_PALETTE_PaletteToXPixel = HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
612 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
613 ERR("Out of memory: PaletteToXPixel!\n");
614 HeapFree(GetProcessHeap(), 0, pixDynMapping);
615 return FALSE;
616 }
617
618 for( i = j = 0; i < 256; i++ )
619 {
620 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
621 {
622 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
623 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
624 continue;
625 }
626
627 if( i < NB_RESERVED_COLORS/2 )
628 {
629 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
630 COLOR_sysPal[i] = sys_pal_template[i];
631 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
632 }
633 else if( i >= 256 - NB_RESERVED_COLORS/2 )
634 {
635 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
636 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
637 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
638 }
639 else if( pixDynMapping )
640 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
641 else
642 X11DRV_PALETTE_PaletteToXPixel[i] = i;
643
644 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
645
646 if( X11DRV_PALETTE_XPixelToPalette )
647 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
648 }
649
650 HeapFree(GetProcessHeap(), 0, pixDynMapping);
651
652 return TRUE;
653 }
654
655 /***********************************************************************
656 * Colormap Initialization
657 */
658 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
659 {
660 /* initialize unused entries to what Windows uses as a color
661 * cube - based on Greg Kreider's code.
662 */
663
664 int i = 0, idx = 0;
665 int red, no_r, inc_r;
666 int green, no_g, inc_g;
667 int blue, no_b, inc_b;
668
669 if (palette_size <= NB_RESERVED_COLORS)
670 return;
671 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
672 no_r = no_g = no_b = --i;
673 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
674 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
675 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
676 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
677 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
678
679 wine_tsx11_lock();
680
681 idx = X11DRV_PALETTE_firstFree;
682
683 if( idx != -1 )
684 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
685 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
686 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
687 {
688 /* weird but true */
689
690 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
691
692 COLOR_sysPal[idx].peRed = red;
693 COLOR_sysPal[idx].peGreen = green;
694 COLOR_sysPal[idx].peBlue = blue;
695
696 /* set X color */
697
698 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
699 {
700 ColorShifts *shifts = &X11DRV_PALETTE_default_shifts;
701 if (shifts->physicalRed.max != 255) no_r = (red * shifts->physicalRed.max) / 255;
702 if (shifts->physicalGreen.max != 255) no_g = (green * shifts->physicalGreen.max) / 255;
703 if (shifts->physicalBlue.max != 255) no_b = (blue * shifts->physicalBlue.max) / 255;
704
705 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << shifts->physicalRed.shift) | (no_g << shifts->physicalGreen.shift) | (no_b << shifts->physicalBlue.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(X11DRV_PDEVICE *physDev, 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 ColorShifts *shifts = &X11DRV_PALETTE_default_shifts;
807
808 if(physDev->color_shifts)
809 shifts = physDev->color_shifts;
810
811 color.red = (pixel >> shifts->logicalRed.shift) & shifts->logicalRed.max;
812 if (shifts->logicalRed.scale<8)
813 color.red= color.red << (8-shifts->logicalRed.scale) |
814 color.red >> (2*shifts->logicalRed.scale-8);
815 color.green = (pixel >> shifts->logicalGreen.shift) & shifts->logicalGreen.max;
816 if (shifts->logicalGreen.scale<8)
817 color.green=color.green << (8-shifts->logicalGreen.scale) |
818 color.green >> (2*shifts->logicalGreen.scale-8);
819 color.blue = (pixel >> shifts->logicalBlue.shift) & shifts->logicalBlue.max;
820 if (shifts->logicalBlue.scale<8)
821 color.blue= color.blue << (8-shifts->logicalBlue.scale) |
822 color.blue >> (2*shifts->logicalBlue.scale-8);
823 return RGB(color.red,color.green,color.blue);
824 }
825
826 /* check if we can bypass X */
827
828 if ((screen_depth <= 8) && (pixel < 256) &&
829 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
830 COLORREF ret;
831 EnterCriticalSection( &palette_cs );
832 ret = *(COLORREF *)(COLOR_sysPal + (X11DRV_PALETTE_XPixelToPalette ? X11DRV_PALETTE_XPixelToPalette[pixel]: pixel)) & 0x00ffffff;
833 LeaveCriticalSection( &palette_cs );
834 return ret;
835 }
836
837 wine_tsx11_lock();
838 color.pixel = pixel;
839 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
840 wine_tsx11_unlock();
841 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
842 }
843
844
845 /***********************************************************************
846 * X11DRV_SysPaletteLookupPixel
847 */
848 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
849 {
850 int i, best = 0, diff = 0x7fffffff;
851 int r,g,b;
852
853 for( i = 0; i < palette_size && diff ; i++ )
854 {
855 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
856 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
857 continue;
858
859 r = COLOR_sysPal[i].peRed - GetRValue(col);
860 g = COLOR_sysPal[i].peGreen - GetGValue(col);
861 b = COLOR_sysPal[i].peBlue - GetBValue(col);
862
863 r = r*r + g*g + b*b;
864
865 if( r < diff ) { best = i; diff = r; }
866 }
867 return best;
868 }
869
870
871 static inline BOOL colour_is_brighter(RGBQUAD c1, RGBQUAD c2)
872 {
873 return (c1.rgbRed * c1.rgbRed + c1.rgbGreen * c1.rgbGreen + c1.rgbBlue * c1.rgbBlue) >
874 (c2.rgbRed * c2.rgbRed + c2.rgbGreen * c2.rgbGreen + c2.rgbBlue * c2.rgbBlue);
875 }
876
877 /***********************************************************************
878 * X11DRV_PALETTE_GetColor
879 *
880 * Resolve PALETTEINDEX/PALETTERGB/DIBINDEX COLORREFs to an RGB COLORREF.
881 */
882 COLORREF X11DRV_PALETTE_GetColor( X11DRV_PDEVICE *physDev, COLORREF color )
883 {
884 HPALETTE hPal = GetCurrentObject(physDev->dev.hdc, OBJ_PAL );
885 PALETTEENTRY entry;
886
887 if (color & (1 << 24)) /* PALETTEINDEX */
888 {
889 unsigned int idx = LOWORD(color);
890 if (!GetPaletteEntries( hPal, idx, 1, &entry )) return 0;
891 return RGB( entry.peRed, entry.peGreen, entry.peBlue );
892 }
893
894 if (color >> 24 == 2) /* PALETTERGB */
895 {
896 unsigned int idx = GetNearestPaletteIndex( hPal, color & 0xffffff );
897 if (!GetPaletteEntries( hPal, idx, 1, &entry )) return 0;
898 return RGB( entry.peRed, entry.peGreen, entry.peBlue );
899 }
900
901 if (color >> 16 == 0x10ff) /* DIBINDEX */
902 return 0;
903
904 return color & 0xffffff;
905 }
906
907 /***********************************************************************
908 * X11DRV_PALETTE_ToPhysical
909 *
910 * Return the physical color closest to 'color'.
911 */
912 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
913 {
914 WORD index = 0;
915 HPALETTE hPal = GetCurrentObject(physDev->dev.hdc, OBJ_PAL );
916 int *mapping = palette_get_mapping( hPal );
917 PALETTEENTRY entry;
918 ColorShifts *shifts = &X11DRV_PALETTE_default_shifts;
919
920 if(physDev->color_shifts)
921 shifts = physDev->color_shifts;
922
923 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
924 {
925 /* there is no colormap limitation; we are going to have to compute
926 * the pixel value from the visual information stored earlier
927 */
928 unsigned long red, green, blue;
929
930 if (color & (1 << 24)) /* PALETTEINDEX */
931 {
932 unsigned int idx = LOWORD( color );
933
934 if (!GetPaletteEntries( hPal, idx, 1, &entry ))
935 {
936 WARN("PALETTEINDEX(%x) : idx %d is out of bounds, assuming black\n", color, idx);
937 return 0;
938 }
939 if (mapping) return mapping[idx];
940 red = entry.peRed;
941 green = entry.peGreen;
942 blue = entry.peBlue;
943 }
944 else if (color >> 16 == 0x10ff) /* DIBINDEX */
945 {
946 return 0;
947 }
948 else /* RGB */
949 {
950 if (physDev->depth == 1)
951 return (((color >> 16) & 0xff) +
952 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
953 red = GetRValue( color );
954 green = GetGValue( color );
955 blue = GetBValue( color );
956 }
957
958 if (X11DRV_PALETTE_Graymax)
959 {
960 /* grayscale only; return scaled value */
961 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
962 }
963 else
964 {
965 /* scale each individually and construct the TrueColor pixel value */
966 if (shifts->physicalRed.scale < 8)
967 red = red >> (8-shifts->physicalRed.scale);
968 else if (shifts->physicalRed.scale > 8)
969 red = red << (shifts->physicalRed.scale-8) |
970 red >> (16-shifts->physicalRed.scale);
971 if (shifts->physicalGreen.scale < 8)
972 green = green >> (8-shifts->physicalGreen.scale);
973 else if (shifts->physicalGreen.scale > 8)
974 green = green << (shifts->physicalGreen.scale-8) |
975 green >> (16-shifts->physicalGreen.scale);
976 if (shifts->physicalBlue.scale < 8)
977 blue = blue >> (8-shifts->physicalBlue.scale);
978 else if (shifts->physicalBlue.scale > 8)
979 blue = blue << (shifts->physicalBlue.scale-8) |
980 blue >> (16-shifts->physicalBlue.scale);
981
982 return (red << shifts->physicalRed.shift) | (green << shifts->physicalGreen.shift) | (blue << shifts->physicalBlue.shift);
983 }
984 }
985 else
986 {
987 if (!mapping)
988 WARN("Palette %p is not realized\n", hPal);
989
990 if (color & (1 << 24)) /* PALETTEINDEX */
991 {
992 index = LOWORD( color );
993 if (!GetPaletteEntries( hPal, index, 1, &entry ))
994 WARN("PALETTEINDEX(%x) : index %i is out of bounds\n", color, index);
995 else if (mapping) index = mapping[index];
996 }
997 else if (color >> 24 == 2) /* PALETTERGB */
998 {
999 index = GetNearestPaletteIndex( hPal, color );
1000 if (mapping) index = mapping[index];
1001 }
1002 else if (color >> 16 == 0x10ff) /* DIBINDEX */
1003 {
1004 return 0;
1005 }
1006 else /* RGB */
1007 {
1008 if (physDev->depth == 1)
1009 return (((color >> 16) & 0xff) +
1010 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
1011
1012 EnterCriticalSection( &palette_cs );
1013 index = X11DRV_SysPaletteLookupPixel( color & 0xffffff, FALSE);
1014 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
1015 LeaveCriticalSection( &palette_cs );
1016 }
1017 }
1018 return index;
1019 }
1020
1021 /***********************************************************************
1022 * X11DRV_PALETTE_LookupPixel
1023 */
1024 int X11DRV_PALETTE_LookupPixel(ColorShifts *shifts, COLORREF color )
1025 {
1026 unsigned char spec_type = color >> 24;
1027
1028 /* Only accept RGB which has spec_type = 0 */
1029 if(spec_type)
1030 return 0;
1031
1032 color &= 0xffffff;
1033
1034 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
1035 {
1036 unsigned long red, green, blue;
1037 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
1038
1039 if (X11DRV_PALETTE_Graymax)
1040 {
1041 /* grayscale only; return scaled value */
1042 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
1043 }
1044 else
1045 {
1046 /* No shifts are set in case of 1-bit */
1047 if(!shifts) shifts = &X11DRV_PALETTE_default_shifts;
1048
1049 /* scale each individually and construct the TrueColor pixel value */
1050 if (shifts->physicalRed.scale < 8)
1051 red = red >> (8-shifts->physicalRed.scale);
1052 else if (shifts->physicalRed.scale > 8)
1053 red = red << (shifts->physicalRed.scale-8) |
1054 red >> (16-shifts->physicalRed.scale);
1055 if (shifts->physicalGreen.scale < 8)
1056 green = green >> (8-shifts->physicalGreen.scale);
1057 else if (shifts->physicalGreen.scale > 8)
1058 green = green << (shifts->physicalGreen.scale-8) |
1059 green >> (16-shifts->physicalGreen.scale);
1060 if (shifts->physicalBlue.scale < 8)
1061 blue = blue >> (8-shifts->physicalBlue.scale);
1062 else if (shifts->physicalBlue.scale > 8)
1063 blue = blue << (shifts->physicalBlue.scale-8) |
1064 blue >> (16-shifts->physicalBlue.scale);
1065
1066 return (red << shifts->physicalRed.shift) | (green << shifts->physicalGreen.shift) | (blue << shifts->physicalBlue.shift);
1067 }
1068 }
1069 else
1070 {
1071 WORD index;
1072 HPALETTE hPal = GetStockObject(DEFAULT_PALETTE);
1073 int *mapping = palette_get_mapping( hPal );
1074
1075 if (!mapping)
1076 WARN("Palette %p is not realized\n", hPal);
1077
1078 EnterCriticalSection( &palette_cs );
1079 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
1080 if (X11DRV_PALETTE_PaletteToXPixel)
1081 index = X11DRV_PALETTE_PaletteToXPixel[index];
1082 LeaveCriticalSection( &palette_cs );
1083 return index;
1084 }
1085 }
1086
1087
1088 /***********************************************************************
1089 * X11DRV_PALETTE_LookupSystemXPixel
1090 */
1091 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
1092 {
1093 int i, best = 0, diff = 0x7fffffff;
1094 int size = palette_size;
1095 int r,g,b;
1096
1097 for( i = 0; i < size && diff ; i++ )
1098 {
1099 if( i == NB_RESERVED_COLORS/2 )
1100 {
1101 int newi = size - NB_RESERVED_COLORS/2;
1102 if (newi>i) i=newi;
1103 }
1104
1105 r = COLOR_sysPal[i].peRed - GetRValue(col);
1106 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1107 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1108
1109 r = r*r + g*g + b*b;
1110
1111 if( r < diff ) { best = i; diff = r; }
1112 }
1113
1114 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1115 }
1116
1117 /***********************************************************************
1118 * X11DRV_PALETTE_FormatSystemPalette
1119 */
1120 static void X11DRV_PALETTE_FormatSystemPalette(void)
1121 {
1122 /* Build free list so we'd have an easy way to find
1123 * out if there are any available colorcells.
1124 */
1125
1126 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1127
1128 COLOR_sysPal[j].peFlags = 0;
1129 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1130 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1131 {
1132 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1133 X11DRV_PALETTE_freeList[j] = i; /* next */
1134 j = i;
1135 }
1136 X11DRV_PALETTE_freeList[j] = 0;
1137 }
1138
1139 /***********************************************************************
1140 * X11DRV_PALETTE_CheckSysColor
1141 */
1142 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1143 {
1144 int i;
1145 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1146 if( c == (*(const COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1147 return 0;
1148 return 1;
1149 }
1150
1151
1152 /***********************************************************************
1153 * X11DRV_LookupSysPaletteExact
1154 */
1155 static int X11DRV_LookupSysPaletteExact( BYTE r, BYTE g, BYTE b )
1156 {
1157 int i;
1158 for( i = 0; i < palette_size; i++ )
1159 {
1160 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1161 if( COLOR_sysPal[i].peRed == r &&
1162 COLOR_sysPal[i].peGreen == g &&
1163 COLOR_sysPal[i].peBlue == b )
1164 return i;
1165 }
1166 return -1;
1167 }
1168
1169
1170 /***********************************************************************
1171 * RealizePalette (X11DRV.@)
1172 */
1173 UINT X11DRV_RealizePalette( PHYSDEV dev, HPALETTE hpal, BOOL primary )
1174 {
1175 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
1176 char flag;
1177 int index;
1178 UINT i, iRemapped = 0;
1179 int *prev_mapping, *mapping;
1180 PALETTEENTRY entries[256];
1181 WORD num_entries;
1182
1183 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1184
1185 if (!GetObjectW( hpal, sizeof(num_entries), &num_entries )) return 0;
1186
1187 /* initialize palette mapping table */
1188 prev_mapping = palette_get_mapping( hpal );
1189 if (prev_mapping)
1190 mapping = HeapReAlloc( GetProcessHeap(), 0, prev_mapping, sizeof(int)*num_entries);
1191 else
1192 mapping = HeapAlloc( GetProcessHeap(), 0, sizeof(int)*num_entries);
1193
1194 if(mapping == NULL) {
1195 ERR("Unable to allocate new mapping -- memory exhausted!\n");
1196 return 0;
1197 }
1198 palette_set_mapping( hpal, mapping );
1199
1200 if (num_entries > 256)
1201 {
1202 FIXME( "more than 256 entries not supported\n" );
1203 num_entries = 256;
1204 }
1205 if (!(num_entries = GetPaletteEntries( hpal, 0, num_entries, entries ))) return 0;
1206
1207 /* reset dynamic system palette entries */
1208
1209 EnterCriticalSection( &palette_cs );
1210 if( primary && X11DRV_PALETTE_firstFree != -1)
1211 X11DRV_PALETTE_FormatSystemPalette();
1212
1213 for (i = 0; i < num_entries; i++)
1214 {
1215 index = -1;
1216 flag = PC_SYS_USED;
1217
1218 /* Even though the docs say that only one flag is to be set,
1219 * they are a bitmask. At least one app sets more than one at
1220 * the same time. */
1221 if ( entries[i].peFlags & PC_EXPLICIT ) {
1222 /* palette entries are indices into system palette */
1223 index = *(WORD*)&entries[i];
1224 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1225 {
1226 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1227 index = 0;
1228 }
1229 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1230 } else {
1231 if ( entries[i].peFlags & PC_RESERVED ) {
1232 /* forbid future mappings to this entry */
1233 flag |= PC_SYS_RESERVED;
1234 }
1235
1236 if (! (entries[i].peFlags & PC_NOCOLLAPSE) ) {
1237 /* try to collapse identical colors */
1238 index = X11DRV_LookupSysPaletteExact( entries[i].peRed, entries[i].peGreen, entries[i].peBlue );
1239 }
1240
1241 if( index < 0 )
1242 {
1243 if( X11DRV_PALETTE_firstFree > 0 )
1244 {
1245 XColor color;
1246 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1247 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1248
1249 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1250 color.red = entries[i].peRed << 8;
1251 color.green = entries[i].peGreen << 8;
1252 color.blue = entries[i].peBlue << 8;
1253 color.flags = DoRed | DoGreen | DoBlue;
1254 wine_tsx11_lock();
1255 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1256 wine_tsx11_unlock();
1257
1258 COLOR_sysPal[index] = entries[i];
1259 COLOR_sysPal[index].peFlags = flag;
1260 X11DRV_PALETTE_freeList[index] = 0;
1261
1262 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1263 }
1264 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1265 {
1266 index = X11DRV_PALETTE_LookupPixel( physDev->color_shifts, RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ));
1267 }
1268
1269 /* we have to map to existing entry in the system palette */
1270
1271 index = X11DRV_SysPaletteLookupPixel( RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ),
1272 TRUE );
1273 }
1274
1275 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1276 }
1277
1278 if( !prev_mapping || mapping[i] != index ) iRemapped++;
1279 mapping[i] = index;
1280
1281 TRACE("entry %i (%x) -> pixel %i\n", i, *(COLORREF*)&entries[i], index);
1282
1283 }
1284 LeaveCriticalSection( &palette_cs );
1285 return iRemapped;
1286 }
1287
1288
1289 /***********************************************************************
1290 * UnrealizePalette (X11DRV.@)
1291 */
1292 BOOL X11DRV_UnrealizePalette( HPALETTE hpal )
1293 {
1294 int *mapping = palette_get_mapping( hpal );
1295
1296 if (mapping)
1297 {
1298 wine_tsx11_lock();
1299 XDeleteContext( gdi_display, (XID)hpal, palette_context );
1300 wine_tsx11_unlock();
1301 HeapFree( GetProcessHeap(), 0, mapping );
1302 }
1303 return TRUE;
1304 }
1305
1306
1307 /***********************************************************************
1308 * GetSystemPaletteEntries (X11DRV.@)
1309 */
1310 UINT X11DRV_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, LPPALETTEENTRY entries )
1311 {
1312 UINT i;
1313
1314 if (!entries) return palette_size;
1315 if (start >= palette_size) return 0;
1316 if (start + count >= palette_size) count = palette_size - start;
1317
1318 EnterCriticalSection( &palette_cs );
1319 for (i = 0; i < count; i++)
1320 {
1321 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1322 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1323 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1324 entries[i].peFlags = 0;
1325 TRACE("\tidx(%02x) -> RGB(%08x)\n", start + i, *(COLORREF*)(entries + i) );
1326 }
1327 LeaveCriticalSection( &palette_cs );
1328 return count;
1329 }
1330
1331
1332 /***********************************************************************
1333 * GetNearestColor (X11DRV.@)
1334 */
1335 COLORREF X11DRV_GetNearestColor( PHYSDEV dev, COLORREF color )
1336 {
1337 unsigned char spec_type = color >> 24;
1338 COLORREF nearest;
1339
1340 if (!palette_size) return color;
1341
1342 if (spec_type == 1 || spec_type == 2)
1343 {
1344 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1345
1346 UINT index;
1347 PALETTEENTRY entry;
1348 HPALETTE hpal = GetCurrentObject( dev->hdc, OBJ_PAL );
1349
1350 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1351
1352 if (spec_type == 2) /* PALETTERGB */
1353 index = GetNearestPaletteIndex( hpal, color );
1354 else /* PALETTEINDEX */
1355 index = LOWORD(color);
1356
1357 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1358 {
1359 WARN("RGB(%x) : idx %d is out of bounds, assuming NULL\n", color, index );
1360 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1361 }
1362 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1363 }
1364 color &= 0x00ffffff;
1365 EnterCriticalSection( &palette_cs );
1366 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1367 LeaveCriticalSection( &palette_cs );
1368
1369 TRACE("(%06x): returning %06x\n", color, nearest );
1370 return nearest;
1371 }
1372
1373
1374 /***********************************************************************
1375 * RealizeDefaultPalette (X11DRV.@)
1376 */
1377 UINT X11DRV_RealizeDefaultPalette( PHYSDEV dev )
1378 {
1379 UINT ret = 0;
1380
1381 if (palette_size && GetObjectType(dev->hdc) != OBJ_MEMDC)
1382 {
1383 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1384 int i, index, *mapping = palette_get_mapping( GetStockObject(DEFAULT_PALETTE) );
1385 PALETTEENTRY entries[NB_RESERVED_COLORS];
1386
1387 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, entries );
1388 EnterCriticalSection( &palette_cs );
1389 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1390 {
1391 index = X11DRV_PALETTE_LookupSystemXPixel( RGB(entries[i].peRed,
1392 entries[i].peGreen,
1393 entries[i].peBlue) );
1394 /* mapping is allocated in COLOR_InitPalette() */
1395 if( index != mapping[i] )
1396 {
1397 mapping[i]=index;
1398 ret++;
1399 }
1400 }
1401 LeaveCriticalSection( &palette_cs );
1402 }
1403 return ret;
1404 }
Windows API implementation