2 * X11DRV OEM bitmap objects
4 * Copyright 1994, 1995 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(palette);
34 /* Palette indexed mode:
35 * logical palette -> mapping -> pixel
38 * Windows needs contiguous color space ( from 0 to n ) but
39 * it is possible only with the private colormap. Otherwise we
40 * have to map DC palette indices to real pixel values. With
41 * private colormaps it boils down to the identity mapping. The
42 * other special case is when we have a fixed color visual with
43 * the screendepth > 8 - we abandon palette mappings altogether
44 * because pixel values can be calculated without X server
47 * Windows palette manager is described in the
48 * http://premium.microsoft.com/msdn/library/techart/f30/f34/f40/d4d/sa942.htm
51 static PALETTEENTRY *COLOR_sysPal; /* current system palette */
53 static int COLOR_gapStart = 256;
54 static int COLOR_gapEnd = -1;
55 static int COLOR_gapFilled = 0;
56 static int COLOR_max = 256;
58 Colormap X11DRV_PALETTE_PaletteXColormap = 0;
59 UINT16 X11DRV_PALETTE_PaletteFlags = 0;
67 /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */
68 static ColorShifts X11DRV_PALETTE_PRed = {0,0,0};
69 static ColorShifts X11DRV_PALETTE_LRed = {0,0,0};
70 static ColorShifts X11DRV_PALETTE_PGreen = {0,0,0};
71 static ColorShifts X11DRV_PALETTE_LGreen = {0,0,0};
72 static ColorShifts X11DRV_PALETTE_PBlue = {0,0,0};
73 static ColorShifts X11DRV_PALETTE_LBlue = {0,0,0};
74 static int X11DRV_PALETTE_Graymax = 0;
76 static int palette_size;
78 /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */
79 static int X11DRV_PALETTE_firstFree = 0;
80 static unsigned char X11DRV_PALETTE_freeList[256];
82 /**********************************************************************/
84 /* Map an EGA index (0..15) to a pixel value in the system color space. */
86 int X11DRV_PALETTE_mapEGAPixel[16];
88 /**********************************************************************/
90 #define NB_COLORCUBE_START_INDEX 63
91 #define NB_PALETTE_EMPTY_VALUE -1
93 /* Maps entry in the system palette to X pixel value */
94 int *X11DRV_PALETTE_PaletteToXPixel = NULL;
96 /* Maps pixel to the entry in the system palette */
97 int *X11DRV_PALETTE_XPixelToPalette = NULL;
99 /**********************************************************************/
101 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template );
102 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template );
103 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical);
104 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template );
105 static void X11DRV_PALETTE_FormatSystemPalette(void);
106 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c);
107 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col);
110 /***********************************************************************
113 * Initialize color management.
115 int X11DRV_PALETTE_Init(void)
117 int mask, white, black;
119 PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
121 TRACE("initializing palette manager...\n");
123 white = WhitePixel( gdi_display, DefaultScreen(gdi_display) );
124 black = BlackPixel( gdi_display, DefaultScreen(gdi_display) );
126 for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 )
128 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
129 palette_size = visual->map_entries;
131 switch(visual->class)
134 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
139 BOOL private_color_map = FALSE;
140 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
143 DWORD type, count = sizeof(buffer);
144 if(!RegQueryValueExA(hkey, "PrivateColorMap", 0, &type, buffer, &count))
147 private_color_map = (ch == 'y' || ch == 'Y' || ch == 't' || ch == 'T' || ch == '1');
153 if (private_color_map)
155 XSetWindowAttributes win_attr;
157 X11DRV_PALETTE_PaletteXColormap = XCreateColormap( gdi_display, root_window,
159 if (X11DRV_PALETTE_PaletteXColormap)
161 X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET);
164 for( white = palette_size - 1; !(white & 1); white >>= 1 )
167 if( root_window != DefaultRootWindow(gdi_display) )
169 win_attr.colormap = X11DRV_PALETTE_PaletteXColormap;
170 XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr );
174 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
183 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
185 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
186 X11DRV_PALETTE_Graymax = (1 << screen_depth)-1;
191 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL;
193 int *depths,nrofdepths;
194 /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have
198 depths = XListDepths(gdi_display,DefaultScreen(gdi_display),&nrofdepths);
199 if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) {
201 for( white = palette_size - 1; !(white & 1); white >>= 1 )
203 X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0;
204 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
209 X11DRV_PALETTE_PaletteXColormap = XCreateColormap(gdi_display, root_window,
211 X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED;
212 X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_PRed, &X11DRV_PALETTE_LRed);
213 X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_PGreen, &X11DRV_PALETTE_LGreen);
214 X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_PBlue, &X11DRV_PALETTE_LBlue);
222 TRACE(" visual class %i (%i)\n", visual->class, monoPlane);
224 GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
226 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
232 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE)
233 X11DRV_PALETTE_BuildPrivateMap( sys_pal_template );
235 X11DRV_PALETTE_BuildSharedMap( sys_pal_template );
237 /* Build free list */
239 if( X11DRV_PALETTE_firstFree != -1 )
240 X11DRV_PALETTE_FormatSystemPalette();
242 X11DRV_PALETTE_FillDefaultColors( sys_pal_template );
243 palette_size = visual->map_entries;
249 /***********************************************************************
250 * X11DRV_PALETTE_Cleanup
252 * Free external colors we grabbed in the FillDefaultPalette()
254 void X11DRV_PALETTE_Cleanup(void)
256 if( COLOR_gapFilled )
259 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap,
260 (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart),
266 /***********************************************************************
267 * X11DRV_PALETTE_ComputeShifts
269 * Calculate conversion parameters for direct mapped visuals
271 static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, ColorShifts *physical, ColorShifts *to_logical)
286 for(i=0;!(maskbits&1);i++)
290 physical->max = maskbits;
292 for(i=0;maskbits!=0;i++)
296 if (physical->scale>8)
298 /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)!
299 * So we adjust the shifts to also normalize the color fields to
300 * the Win32 standard of 8 bits per color.
302 to_logical->shift=physical->shift+(physical->scale-8);
304 to_logical->max=0xff;
306 to_logical->shift=physical->shift;
307 to_logical->scale=physical->scale;
308 to_logical->max=physical->max;
312 /***********************************************************************
313 * X11DRV_PALETTE_BuildPrivateMap
315 * Allocate colorcells and initialize mapping tables.
317 static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template )
319 /* Private colormap - identity mapping */
324 if((COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) {
325 WARN("Can not allocate system palette\n");
329 TRACE("Building private map - %i palette entries\n", palette_size);
331 /* Allocate system palette colors */
334 for( i=0; i < palette_size; i++ )
336 if( i < NB_RESERVED_COLORS/2 )
338 color.red = sys_pal_template[i].peRed * 65535 / 255;
339 color.green = sys_pal_template[i].peGreen * 65535 / 255;
340 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
341 COLOR_sysPal[i] = sys_pal_template[i];
342 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
344 else if( i >= palette_size - NB_RESERVED_COLORS/2 )
346 int j = NB_RESERVED_COLORS + i - palette_size;
347 color.red = sys_pal_template[j].peRed * 65535 / 255;
348 color.green = sys_pal_template[j].peGreen * 65535 / 255;
349 color.blue = sys_pal_template[j].peBlue * 65535 / 255;
350 COLOR_sysPal[i] = sys_pal_template[j];
351 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
354 color.flags = DoRed | DoGreen | DoBlue;
356 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
358 /* Set EGA mapping if color is from the first or last eight */
361 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
362 else if (i >= palette_size - 8 )
363 X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel;
367 X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL;
369 COLOR_gapStart = 256; COLOR_gapEnd = -1;
371 X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1;
376 /***********************************************************************
377 * X11DRV_PALETTE_BuildSharedMap
379 * Allocate colorcells and initialize mapping tables.
381 static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template )
384 unsigned long sysPixel[NB_RESERVED_COLORS];
385 unsigned long* pixDynMapping = NULL;
386 unsigned long plane_masks[1];
388 int diff, r, g, b, bp = 0, wp = 1;
390 int defaultCM_max_copy;
391 unsigned int max = 256;
393 XColor defaultColors[256];
396 defaultCM_max_copy = 128;
399 if(!RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\x11drv", &hkey))
404 count = sizeof(buffer);
405 if(!RegQueryValueExA(hkey, "CopyDefaultColors", 0, &type, buffer, &count))
406 defaultCM_max_copy = atoi(buffer);
408 count = sizeof(buffer);
409 if(!RegQueryValueExA(hkey, "AllocSystemColors", 0, &type, buffer, &count))
410 COLOR_max = atoi(buffer);
415 /* Copy the first bunch of colors out of the default colormap to prevent
416 * colormap flashing as much as possible. We're likely to get the most
417 * important Window Manager colors, etc in the first 128 colors */
418 defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) );
420 for (i = 0; i < defaultCM_max_copy; i++)
421 defaultColors[i].pixel = (long) i;
423 XQueryColors(gdi_display, defaultCM, &defaultColors[0], defaultCM_max_copy);
424 for (i = 0; i < defaultCM_max_copy; i++)
425 XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &defaultColors[i] );
427 if (COLOR_max > 256) COLOR_max = 256;
428 else if (COLOR_max < 20) COLOR_max = 20;
429 TRACE("%d colors configured.\n", COLOR_max);
431 TRACE("Building shared map - %i palette entries\n", palette_size);
433 /* Be nice and allocate system colors as read-only */
435 for( i = 0; i < NB_RESERVED_COLORS; i++ )
437 color.red = sys_pal_template[i].peRed * 65535 / 255;
438 color.green = sys_pal_template[i].peGreen * 65535 / 255;
439 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
440 color.flags = DoRed | DoGreen | DoBlue;
442 if (!XAllocColor( gdi_display, X11DRV_PALETTE_PaletteXColormap, &color ))
448 WARN("Not enough colors for the full system palette.\n");
450 bp = BlackPixel(gdi_display, DefaultScreen(gdi_display));
451 wp = WhitePixel(gdi_display, DefaultScreen(gdi_display));
453 max = (0xffffffff)>>(32 - screen_depth);
461 /* reinit color (XAllocColor() may change it)
462 * and map to the best shared colorcell */
464 color.red = sys_pal_template[i].peRed * 65535 / 255;
465 color.green = sys_pal_template[i].peGreen * 65535 / 255;
466 color.blue = sys_pal_template[i].peBlue * 65535 / 255;
468 best.pixel = best.red = best.green = best.blue = 0;
469 for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step )
471 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &c);
472 r = (c.red - color.red)>>8;
473 g = (c.green - color.green)>>8;
474 b = (c.blue - color.blue)>>8;
476 if( r < diff ) { best = c; diff = r; }
479 if( XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &best) )
480 color.pixel = best.pixel;
481 else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp;
484 sysPixel[i] = color.pixel;
486 TRACE("syscolor(%lx) -> pixel %i\n",
487 *(const COLORREF*)(sys_pal_template+i), (int)color.pixel);
489 /* Set EGA mapping if color in the first or last eight */
492 X11DRV_PALETTE_mapEGAPixel[i] = color.pixel;
493 else if (i >= NB_RESERVED_COLORS - 8 )
494 X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel;
498 /* now allocate changeable set */
500 if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
502 int c_min = 0, c_max = palette_size, c_val;
504 TRACE("Dynamic colormap... \n");
506 /* let's become the first client that actually follows
507 * X guidelines and does binary search...
510 if((pixDynMapping = HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) {
511 WARN("Out of memory while building system palette.\n");
516 /* comment this out if you want to debug palette init */
517 XGrabServer(gdi_display);
519 while( c_max - c_min > 0 )
521 c_val = (c_max + c_min)/2 + (c_max + c_min)%2;
523 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
524 plane_masks, 0, pixDynMapping, c_val) )
528 XFreeColors(gdi_display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0);
533 if( c_min > COLOR_max - NB_RESERVED_COLORS)
534 c_min = COLOR_max - NB_RESERVED_COLORS;
536 c_min = (c_min/2) + (c_min/2); /* need even set for split palette */
539 if( !XAllocColorCells(gdi_display, X11DRV_PALETTE_PaletteXColormap, False,
540 plane_masks, 0, pixDynMapping, c_min) )
542 WARN("Inexplicable failure during colorcell allocation.\n");
546 palette_size = c_min + NB_RESERVED_COLORS;
548 XUngrabServer(gdi_display);
551 TRACE("adjusted size %i colorcells\n", palette_size);
553 else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
555 /* virtual colorspace - ToPhysical takes care of
556 * color translations but we have to allocate full palette
557 * to maintain compatibility
560 TRACE("Virtual colorspace - screendepth %i\n", screen_depth);
562 else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch
563 * of colors and map to them */
565 TRACE("Shared system palette uses %i colors.\n", palette_size);
567 /* set gap to account for pixel shortage. It has to be right in the center
568 * of the system palette because otherwise raster ops get screwed. */
570 if( palette_size >= 256 )
571 { COLOR_gapStart = 256; COLOR_gapEnd = -1; }
573 { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; }
575 X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS &&
576 (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) )
577 ? NB_RESERVED_COLORS/2 : -1;
579 COLOR_sysPal = HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
580 if(COLOR_sysPal == NULL) {
581 ERR("Can not allocate system palette!\n");
582 HeapFree(GetProcessHeap(), 0, pixDynMapping);
586 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
588 if (screen_depth <= 8)
590 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
591 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
592 ERR("Out of memory: XPixelToPalette!\n");
593 HeapFree(GetProcessHeap(), 0, pixDynMapping);
596 for( i = 0; i < 256; i++ )
597 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
600 /* for hicolor visuals PaletteToPixel mapping is used to skip
601 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
604 X11DRV_PALETTE_PaletteToXPixel = HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
605 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
606 ERR("Out of memory: PaletteToXPixel!\n");
607 HeapFree(GetProcessHeap(), 0, pixDynMapping);
611 for( i = j = 0; i < 256; i++ )
613 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
615 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
616 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
620 if( i < NB_RESERVED_COLORS/2 )
622 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
623 COLOR_sysPal[i] = sys_pal_template[i];
624 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
626 else if( i >= 256 - NB_RESERVED_COLORS/2 )
628 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
629 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
630 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
632 else if( pixDynMapping )
633 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
635 X11DRV_PALETTE_PaletteToXPixel[i] = i;
637 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
639 if( X11DRV_PALETTE_XPixelToPalette )
640 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
643 HeapFree(GetProcessHeap(), 0, pixDynMapping);
648 /***********************************************************************
649 * Colormap Initialization
651 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
653 /* initialize unused entries to what Windows uses as a color
654 * cube - based on Greg Kreider's code.
658 int red, no_r, inc_r;
659 int green, no_g, inc_g;
660 int blue, no_b, inc_b;
662 if (palette_size <= NB_RESERVED_COLORS)
664 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
665 no_r = no_g = no_b = --i;
666 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
667 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
668 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
669 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
670 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
674 idx = X11DRV_PALETTE_firstFree;
677 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
678 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
679 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
683 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
685 COLOR_sysPal[idx].peRed = red;
686 COLOR_sysPal[idx].peGreen = green;
687 COLOR_sysPal[idx].peBlue = blue;
691 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
693 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
694 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
695 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
697 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
699 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
702 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
703 color.red = COLOR_sysPal[idx].peRed << 8;
704 color.green = COLOR_sysPal[idx].peGreen << 8;
705 color.blue = COLOR_sysPal[idx].peBlue << 8;
706 color.flags = DoRed | DoGreen | DoBlue;
707 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
709 idx = X11DRV_PALETTE_freeList[idx];
712 /* try to fill some entries in the "gap" with
713 * what's already in the colormap - they will be
714 * mappable to but not changeable. */
716 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
721 max = COLOR_max - (256 - (COLOR_gapEnd - COLOR_gapStart));
722 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
723 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
727 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
728 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
730 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
731 XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
733 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
734 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
735 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
736 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
737 if( --max <= 0 ) break;
740 COLOR_gapFilled = idx - COLOR_gapStart;
746 /***********************************************************************
747 * X11DRV_IsSolidColor
749 * Check whether 'color' can be represented with a solid color.
751 BOOL X11DRV_IsSolidColor( COLORREF color )
754 const PALETTEENTRY *pEntry = COLOR_sysPal;
756 if (color & 0xff000000) return TRUE; /* indexed color */
758 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
760 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return TRUE; /* no palette */
762 for (i = 0; i < palette_size ; i++, pEntry++)
764 if( i < COLOR_gapStart || i > COLOR_gapEnd )
765 if ((GetRValue(color) == pEntry->peRed) &&
766 (GetGValue(color) == pEntry->peGreen) &&
767 (GetBValue(color) == pEntry->peBlue)) return TRUE;
773 /***********************************************************************
774 * X11DRV_PALETTE_ToLogical
776 * Return RGB color for given X pixel.
778 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
783 /* truecolor visual */
785 if (screen_depth >= 24) return pixel;
788 /* check for hicolor visuals first */
790 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
792 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
793 if (X11DRV_PALETTE_LRed.scale<8)
794 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
795 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
796 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
797 if (X11DRV_PALETTE_LGreen.scale<8)
798 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
799 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
800 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
801 if (X11DRV_PALETTE_LBlue.scale<8)
802 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
803 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
804 return RGB(color.red,color.green,color.blue);
807 /* check if we can bypass X */
809 if ((screen_depth <= 8) && (pixel < 256) &&
810 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
811 return ( *(COLORREF*)(COLOR_sysPal +
812 ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff;
817 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
819 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
823 /***********************************************************************
824 * X11DRV_SysPaletteLookupPixel
826 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
828 int i, best = 0, diff = 0x7fffffff;
831 for( i = 0; i < palette_size && diff ; i++ )
833 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
834 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
837 r = COLOR_sysPal[i].peRed - GetRValue(col);
838 g = COLOR_sysPal[i].peGreen - GetGValue(col);
839 b = COLOR_sysPal[i].peBlue - GetBValue(col);
843 if( r < diff ) { best = i; diff = r; }
849 /***********************************************************************
850 * X11DRV_PALETTE_ToPhysical
852 * Return the physical color closest to 'color'.
854 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
857 HPALETTE hPal = physDev ? GetCurrentObject(physDev->hdc, OBJ_PAL ) : GetStockObject(DEFAULT_PALETTE);
858 unsigned char spec_type = color >> 24;
859 PALETTEOBJ* palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
861 /* palPtr can be NULL when DC is being destroyed */
862 if( !palPtr ) return 0;
864 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
866 /* there is no colormap limitation; we are going to have to compute
867 * the pixel value from the visual information stored earlier
870 unsigned long red, green, blue;
875 case 1: /* PALETTEINDEX */
877 if( (idx = color & 0xffff) >= palPtr->logpalette.palNumEntries)
879 WARN("RGB(%lx) : idx %d is out of bounds, assuming black\n", color, idx);
880 GDI_ReleaseObj( hPal );
884 if( palPtr->mapping )
886 int ret = palPtr->mapping[idx];
887 GDI_ReleaseObj( hPal );
890 color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx);
895 /* fall through to RGB */
898 if (physDev && (physDev->depth == 1) )
900 GDI_ReleaseObj( hPal );
901 return (((color >> 16) & 0xff) +
902 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
907 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
909 if (X11DRV_PALETTE_Graymax)
911 /* grayscale only; return scaled value */
912 GDI_ReleaseObj( hPal );
913 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
917 /* scale each individually and construct the TrueColor pixel value */
918 if (X11DRV_PALETTE_PRed.scale < 8)
919 red = red >> (8-X11DRV_PALETTE_PRed.scale);
920 else if (X11DRV_PALETTE_PRed.scale > 8)
921 red = red << (X11DRV_PALETTE_PRed.scale-8) |
922 red >> (16-X11DRV_PALETTE_PRed.scale);
923 if (X11DRV_PALETTE_PGreen.scale < 8)
924 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
925 else if (X11DRV_PALETTE_PGreen.scale > 8)
926 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
927 green >> (16-X11DRV_PALETTE_PGreen.scale);
928 if (X11DRV_PALETTE_PBlue.scale < 8)
929 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
930 else if (X11DRV_PALETTE_PBlue.scale > 8)
931 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
932 blue >> (16-X11DRV_PALETTE_PBlue.scale);
934 GDI_ReleaseObj( hPal );
935 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
941 if( !palPtr->mapping )
942 WARN("Palette %p is not realized\n", hPal);
944 switch(spec_type) /* we have to peruse DC and system palette */
948 /* fall through to RGB */
951 if (physDev && (physDev->depth == 1) )
953 GDI_ReleaseObj( hPal );
954 return (((color >> 16) & 0xff) +
955 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
958 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
959 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
961 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
964 case 1: /* PALETTEINDEX */
965 index = color & 0xffff;
967 if( index >= palPtr->logpalette.palNumEntries )
968 WARN("RGB(%lx) : index %i is out of bounds\n", color, index);
969 else if( palPtr->mapping ) index = palPtr->mapping[index];
971 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
974 case 2: /* PALETTERGB */
975 index = GetNearestPaletteIndex( hPal, color );
976 if (palPtr->mapping) index = palPtr->mapping[index];
977 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
983 GDI_ReleaseObj( hPal );
987 /***********************************************************************
988 * X11DRV_PALETTE_LookupSystemXPixel
990 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
992 int i, best = 0, diff = 0x7fffffff;
993 int size = palette_size;
996 for( i = 0; i < size && diff ; i++ )
998 if( i == NB_RESERVED_COLORS/2 )
1000 int newi = size - NB_RESERVED_COLORS/2;
1004 r = COLOR_sysPal[i].peRed - GetRValue(col);
1005 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1006 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1008 r = r*r + g*g + b*b;
1010 if( r < diff ) { best = i; diff = r; }
1013 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1016 /***********************************************************************
1017 * X11DRV_PALETTE_FormatSystemPalette
1019 static void X11DRV_PALETTE_FormatSystemPalette(void)
1021 /* Build free list so we'd have an easy way to find
1022 * out if there are any available colorcells.
1025 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1027 COLOR_sysPal[j].peFlags = 0;
1028 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1029 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1031 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1032 X11DRV_PALETTE_freeList[j] = i; /* next */
1035 X11DRV_PALETTE_freeList[j] = 0;
1038 /***********************************************************************
1039 * X11DRV_PALETTE_CheckSysColor
1041 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1044 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1045 if( c == (*(const COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1051 /***********************************************************************
1052 * X11DRV_LookupSysPaletteExact
1054 static int X11DRV_LookupSysPaletteExact( COLORREF col )
1057 BYTE r = GetRValue(col), g = GetGValue(col), b = GetBValue(col);
1058 for( i = 0; i < palette_size; i++ )
1060 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1061 if( COLOR_sysPal[i].peRed == r &&
1062 COLOR_sysPal[i].peGreen == g &&
1063 COLOR_sysPal[i].peBlue == b )
1070 /***********************************************************************
1071 * X11DRV_PALETTE_SetMapping
1073 * Set the color-mapping table for selected palette.
1074 * Return number of entries which mapping has changed.
1076 static UINT X11DRV_PALETTE_SetMapping( PALETTEOBJ* palPtr, UINT uStart, UINT uNum, BOOL mapOnly )
1079 int prevMapping = (palPtr->mapping) ? 1 : 0;
1084 /* reset dynamic system palette entries */
1086 if( !mapOnly && X11DRV_PALETTE_firstFree != -1)
1087 X11DRV_PALETTE_FormatSystemPalette();
1089 /* initialize palette mapping table */
1090 if (palPtr->mapping)
1091 mapping = HeapReAlloc( GetProcessHeap(), 0, palPtr->mapping,
1092 sizeof(int)*palPtr->logpalette.palNumEntries);
1094 mapping = HeapAlloc( GetProcessHeap(), 0,
1095 sizeof(int)*palPtr->logpalette.palNumEntries);
1097 if(mapping == NULL) {
1098 ERR("Can not allocate new mapping -- memory exausted!\n");
1101 palPtr->mapping = mapping;
1103 if (uStart >= palPtr->logpalette.palNumEntries) return 0;
1105 if (uStart + uNum > palPtr->logpalette.palNumEntries)
1106 uNum = palPtr->logpalette.palNumEntries - uStart;
1108 for( uNum += uStart; uStart < uNum; uStart++ )
1113 /* Even though the docs say that only one flag is to be set,
1114 * they are a bitmask. At least one app sets more than one at
1116 if ( palPtr->logpalette.palPalEntry[uStart].peFlags & PC_EXPLICIT ) {
1117 /* palette entries are indices into system palette */
1118 index = *(WORD*)(palPtr->logpalette.palPalEntry + uStart);
1119 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1121 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1124 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1126 if ( palPtr->logpalette.palPalEntry[uStart].peFlags & PC_RESERVED ) {
1127 /* forbid future mappings to this entry */
1128 flag |= PC_SYS_RESERVED;
1131 if (! (palPtr->logpalette.palPalEntry[uStart].peFlags & PC_NOCOLLAPSE) ) {
1132 /* try to collapse identical colors */
1133 index = X11DRV_LookupSysPaletteExact(*(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1138 if( X11DRV_PALETTE_firstFree > 0 )
1141 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1142 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1144 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1145 color.red = palPtr->logpalette.palPalEntry[uStart].peRed << 8;
1146 color.green = palPtr->logpalette.palPalEntry[uStart].peGreen << 8;
1147 color.blue = palPtr->logpalette.palPalEntry[uStart].peBlue << 8;
1148 color.flags = DoRed | DoGreen | DoBlue;
1150 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1151 wine_tsx11_unlock();
1153 COLOR_sysPal[index] = palPtr->logpalette.palPalEntry[uStart];
1154 COLOR_sysPal[index].peFlags = flag;
1155 X11DRV_PALETTE_freeList[index] = 0;
1157 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1159 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1161 index = X11DRV_PALETTE_ToPhysical( NULL, 0x00ffffff &
1162 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1165 /* we have to map to existing entry in the system palette */
1167 index = X11DRV_SysPaletteLookupPixel( *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), TRUE);
1169 palPtr->logpalette.palPalEntry[uStart].peFlags |= PC_SYS_USED;
1171 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1174 if( !prevMapping || palPtr->mapping[uStart] != index ) iRemapped++;
1175 palPtr->mapping[uStart] = index;
1177 TRACE("entry %i (%lx) -> pixel %i\n", uStart,
1178 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), index);
1184 /***********************************************************************
1185 * GetSystemPaletteEntries (X11DRV.@)
1187 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1188 LPPALETTEENTRY entries )
1192 if (!entries) return palette_size;
1193 if (start >= palette_size) return 0;
1194 if (start + count >= palette_size) count = palette_size - start;
1196 for (i = 0; i < count; i++)
1198 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1199 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1200 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1201 entries[i].peFlags = 0;
1202 TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
1208 /***********************************************************************
1209 * GetNearestColor (X11DRV.@)
1211 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1213 unsigned char spec_type = color >> 24;
1216 if (!palette_size) return color;
1218 if (spec_type == 1 || spec_type == 2)
1220 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1224 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1226 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1228 if (spec_type == 2) /* PALETTERGB */
1229 index = GetNearestPaletteIndex( hpal, color );
1230 else /* PALETTEINDEX */
1231 index = LOWORD(color);
1233 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1235 WARN("RGB(%lx) : idx %d is out of bounds, assuming NULL\n", color, index );
1236 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1238 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1240 color &= 0x00ffffff;
1241 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1243 TRACE("(%06lx): returning %06lx\n", color, nearest );
1248 /***********************************************************************
1249 * RealizePalette (X11DRV.@)
1251 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1256 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1258 if (!(palPtr = GDI_GetObjPtr( hpal, PALETTE_MAGIC ))) return 0;
1259 ret = X11DRV_PALETTE_SetMapping( palPtr, 0, palPtr->logpalette.palNumEntries, !primary );
1260 GDI_ReleaseObj( hpal );
1265 /***********************************************************************
1266 * RealizeDefaultPalette (X11DRV.@)
1268 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1272 if (palette_size && GetObjectType(physDev->hdc) != OBJ_MEMDC)
1274 PALETTEOBJ* palPtr = GDI_GetObjPtr( GetStockObject(DEFAULT_PALETTE), PALETTE_MAGIC );
1277 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1280 for( i = 0; i < 20; i++ )
1282 index = X11DRV_PALETTE_LookupSystemXPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
1283 /* mapping is allocated in COLOR_InitPalette() */
1284 if( index != palPtr->mapping[i] )
1286 palPtr->mapping[i]=index;
1290 GDI_ReleaseObj( GetStockObject(DEFAULT_PALETTE) );