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 = (PALETTEENTRY*)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 *(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 = (unsigned long*)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 = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256);
580 if(COLOR_sysPal == NULL) {
581 ERR("Can not allocate system palette!\n");
585 /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */
587 if (screen_depth <= 8)
589 X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) );
590 if(X11DRV_PALETTE_XPixelToPalette == NULL) {
591 ERR("Out of memory: XPixelToPalette!\n");
594 for( i = 0; i < 256; i++ )
595 X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE;
598 /* for hicolor visuals PaletteToPixel mapping is used to skip
599 * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical().
602 X11DRV_PALETTE_PaletteToXPixel = (int*)HeapAlloc(GetProcessHeap(),0,sizeof(int)*256);
603 if(X11DRV_PALETTE_PaletteToXPixel == NULL) {
604 ERR("Out of memory: PaletteToXPixel!\n");
608 for( i = j = 0; i < 256; i++ )
610 if( i >= COLOR_gapStart && i <= COLOR_gapEnd )
612 X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE;
613 COLOR_sysPal[i].peFlags = 0; /* mark as unused */
617 if( i < NB_RESERVED_COLORS/2 )
619 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i];
620 COLOR_sysPal[i] = sys_pal_template[i];
621 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
623 else if( i >= 256 - NB_RESERVED_COLORS/2 )
625 X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256];
626 COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256];
627 COLOR_sysPal[i].peFlags |= PC_SYS_USED;
629 else if( pixDynMapping )
630 X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++];
632 X11DRV_PALETTE_PaletteToXPixel[i] = i;
634 TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]);
636 if( X11DRV_PALETTE_XPixelToPalette )
637 X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i;
640 if( pixDynMapping ) HeapFree(GetProcessHeap(), 0, pixDynMapping);
645 /***********************************************************************
646 * Colormap Initialization
648 static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template )
650 /* initialize unused entries to what Windows uses as a color
651 * cube - based on Greg Kreider's code.
655 int red, no_r, inc_r;
656 int green, no_g, inc_g;
657 int blue, no_b, inc_b;
659 if (palette_size <= NB_RESERVED_COLORS)
661 while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++;
662 no_r = no_g = no_b = --i;
663 if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++;
664 if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++;
665 inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r;
666 inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g;
667 inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b;
671 idx = X11DRV_PALETTE_firstFree;
674 for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b )
675 for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g )
676 for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r )
680 if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue;
682 COLOR_sysPal[idx].peRed = red;
683 COLOR_sysPal[idx].peGreen = green;
684 COLOR_sysPal[idx].peBlue = blue;
688 if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
690 if (X11DRV_PALETTE_PRed.max != 255) no_r = (red * X11DRV_PALETTE_PRed.max) / 255;
691 if (X11DRV_PALETTE_PGreen.max != 255) no_g = (green * X11DRV_PALETTE_PGreen.max) / 255;
692 if (X11DRV_PALETTE_PBlue.max != 255) no_b = (blue * X11DRV_PALETTE_PBlue.max) / 255;
694 X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_PRed.shift) | (no_g << X11DRV_PALETTE_PGreen.shift) | (no_b << X11DRV_PALETTE_PBlue.shift);
696 else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) )
699 color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx;
700 color.red = COLOR_sysPal[idx].peRed << 8;
701 color.green = COLOR_sysPal[idx].peGreen << 8;
702 color.blue = COLOR_sysPal[idx].peBlue << 8;
703 color.flags = DoRed | DoGreen | DoBlue;
704 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
706 idx = X11DRV_PALETTE_freeList[idx];
709 /* try to fill some entries in the "gap" with
710 * what's already in the colormap - they will be
711 * mappable to but not changeable. */
713 if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette )
718 max = COLOR_max - (256 - (COLOR_gapEnd - COLOR_gapStart));
719 for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ )
720 if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE )
724 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc);
725 r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8;
727 if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) &&
728 XAllocColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &xc) )
730 X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx;
731 X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel;
732 *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b);
733 COLOR_sysPal[idx++].peFlags |= PC_SYS_USED;
734 if( --max <= 0 ) break;
737 COLOR_gapFilled = idx - COLOR_gapStart;
743 /***********************************************************************
744 * X11DRV_IsSolidColor
746 * Check whether 'color' can be represented with a solid color.
748 BOOL X11DRV_IsSolidColor( COLORREF color )
751 const PALETTEENTRY *pEntry = COLOR_sysPal;
753 if (color & 0xff000000) return TRUE; /* indexed color */
755 if (!color || (color == 0xffffff)) return TRUE; /* black or white */
757 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return TRUE; /* no palette */
759 for (i = 0; i < palette_size ; i++, pEntry++)
761 if( i < COLOR_gapStart || i > COLOR_gapEnd )
762 if ((GetRValue(color) == pEntry->peRed) &&
763 (GetGValue(color) == pEntry->peGreen) &&
764 (GetBValue(color) == pEntry->peBlue)) return TRUE;
770 /***********************************************************************
771 * X11DRV_PALETTE_ToLogical
773 * Return RGB color for given X pixel.
775 COLORREF X11DRV_PALETTE_ToLogical(int pixel)
780 /* truecolor visual */
782 if (screen_depth >= 24) return pixel;
785 /* check for hicolor visuals first */
787 if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax )
789 color.red = (pixel >> X11DRV_PALETTE_LRed.shift) & X11DRV_PALETTE_LRed.max;
790 if (X11DRV_PALETTE_LRed.scale<8)
791 color.red= color.red << (8-X11DRV_PALETTE_LRed.scale) |
792 color.red >> (2*X11DRV_PALETTE_LRed.scale-8);
793 color.green = (pixel >> X11DRV_PALETTE_LGreen.shift) & X11DRV_PALETTE_LGreen.max;
794 if (X11DRV_PALETTE_LGreen.scale<8)
795 color.green=color.green << (8-X11DRV_PALETTE_LGreen.scale) |
796 color.green >> (2*X11DRV_PALETTE_LGreen.scale-8);
797 color.blue = (pixel >> X11DRV_PALETTE_LBlue.shift) & X11DRV_PALETTE_LBlue.max;
798 if (X11DRV_PALETTE_LBlue.scale<8)
799 color.blue= color.blue << (8-X11DRV_PALETTE_LBlue.scale) |
800 color.blue >> (2*X11DRV_PALETTE_LBlue.scale-8);
801 return RGB(color.red,color.green,color.blue);
804 /* check if we can bypass X */
806 if ((screen_depth <= 8) && (pixel < 256) &&
807 !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) {
808 return ( *(COLORREF*)(COLOR_sysPal +
809 ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff;
814 XQueryColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
816 return RGB(color.red >> 8, color.green >> 8, color.blue >> 8);
820 /***********************************************************************
821 * X11DRV_SysPaletteLookupPixel
823 static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved )
825 int i, best = 0, diff = 0x7fffffff;
828 for( i = 0; i < palette_size && diff ; i++ )
830 if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) ||
831 (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) )
834 r = COLOR_sysPal[i].peRed - GetRValue(col);
835 g = COLOR_sysPal[i].peGreen - GetGValue(col);
836 b = COLOR_sysPal[i].peBlue - GetBValue(col);
840 if( r < diff ) { best = i; diff = r; }
846 /***********************************************************************
847 * X11DRV_PALETTE_ToPhysical
849 * Return the physical color closest to 'color'.
851 int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color )
854 HPALETTE hPal = physDev ? GetCurrentObject(physDev->hdc, OBJ_PAL ) : GetStockObject(DEFAULT_PALETTE);
855 unsigned char spec_type = color >> 24;
856 PALETTEOBJ* palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
858 /* palPtr can be NULL when DC is being destroyed */
859 if( !palPtr ) return 0;
861 if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED )
863 /* there is no colormap limitation; we are going to have to compute
864 * the pixel value from the visual information stored earlier
867 unsigned long red, green, blue;
872 case 1: /* PALETTEINDEX */
874 if( (idx = color & 0xffff) >= palPtr->logpalette.palNumEntries)
876 WARN("RGB(%lx) : idx %d is out of bounds, assuming black\n", color, idx);
877 GDI_ReleaseObj( hPal );
881 if( palPtr->mapping )
883 int ret = palPtr->mapping[idx];
884 GDI_ReleaseObj( hPal );
887 color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx);
892 /* fall through to RGB */
895 if (physDev && (physDev->depth == 1) )
897 GDI_ReleaseObj( hPal );
898 return (((color >> 16) & 0xff) +
899 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
904 red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color);
906 if (X11DRV_PALETTE_Graymax)
908 /* grayscale only; return scaled value */
909 GDI_ReleaseObj( hPal );
910 return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500;
914 /* scale each individually and construct the TrueColor pixel value */
915 if (X11DRV_PALETTE_PRed.scale < 8)
916 red = red >> (8-X11DRV_PALETTE_PRed.scale);
917 else if (X11DRV_PALETTE_PRed.scale > 8)
918 red = red << (X11DRV_PALETTE_PRed.scale-8) |
919 red >> (16-X11DRV_PALETTE_PRed.scale);
920 if (X11DRV_PALETTE_PGreen.scale < 8)
921 green = green >> (8-X11DRV_PALETTE_PGreen.scale);
922 else if (X11DRV_PALETTE_PGreen.scale > 8)
923 green = green << (X11DRV_PALETTE_PGreen.scale-8) |
924 green >> (16-X11DRV_PALETTE_PGreen.scale);
925 if (X11DRV_PALETTE_PBlue.scale < 8)
926 blue = blue >> (8-X11DRV_PALETTE_PBlue.scale);
927 else if (X11DRV_PALETTE_PBlue.scale > 8)
928 blue = blue << (X11DRV_PALETTE_PBlue.scale-8) |
929 blue >> (16-X11DRV_PALETTE_PBlue.scale);
931 GDI_ReleaseObj( hPal );
932 return (red << X11DRV_PALETTE_PRed.shift) | (green << X11DRV_PALETTE_PGreen.shift) | (blue << X11DRV_PALETTE_PBlue.shift);
938 if( !palPtr->mapping )
939 WARN("Palette %p is not realized\n", hPal);
941 switch(spec_type) /* we have to peruse DC and system palette */
945 /* fall through to RGB */
948 if (physDev && (physDev->depth == 1) )
950 GDI_ReleaseObj( hPal );
951 return (((color >> 16) & 0xff) +
952 ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0;
955 index = X11DRV_SysPaletteLookupPixel( color, FALSE);
956 if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index];
958 /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index);
961 case 1: /* PALETTEINDEX */
962 index = color & 0xffff;
964 if( index >= palPtr->logpalette.palNumEntries )
965 WARN("RGB(%lx) : index %i is out of bounds\n", color, index);
966 else if( palPtr->mapping ) index = palPtr->mapping[index];
968 /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index);
971 case 2: /* PALETTERGB */
972 index = GetNearestPaletteIndex( hPal, color );
973 if (palPtr->mapping) index = palPtr->mapping[index];
974 /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index);
980 GDI_ReleaseObj( hPal );
984 /***********************************************************************
985 * X11DRV_PALETTE_LookupSystemXPixel
987 static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col)
989 int i, best = 0, diff = 0x7fffffff;
990 int size = palette_size;
993 for( i = 0; i < size && diff ; i++ )
995 if( i == NB_RESERVED_COLORS/2 )
997 int newi = size - NB_RESERVED_COLORS/2;
1001 r = COLOR_sysPal[i].peRed - GetRValue(col);
1002 g = COLOR_sysPal[i].peGreen - GetGValue(col);
1003 b = COLOR_sysPal[i].peBlue - GetBValue(col);
1005 r = r*r + g*g + b*b;
1007 if( r < diff ) { best = i; diff = r; }
1010 return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best;
1013 /***********************************************************************
1014 * X11DRV_PALETTE_FormatSystemPalette
1016 static void X11DRV_PALETTE_FormatSystemPalette(void)
1018 /* Build free list so we'd have an easy way to find
1019 * out if there are any available colorcells.
1022 int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2;
1024 COLOR_sysPal[j].peFlags = 0;
1025 for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ )
1026 if( i < COLOR_gapStart || i > COLOR_gapEnd )
1028 COLOR_sysPal[i].peFlags = 0; /* unused tag */
1029 X11DRV_PALETTE_freeList[j] = i; /* next */
1032 X11DRV_PALETTE_freeList[j] = 0;
1035 /***********************************************************************
1036 * X11DRV_PALETTE_CheckSysColor
1038 static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c)
1041 for( i = 0; i < NB_RESERVED_COLORS; i++ )
1042 if( c == (*(COLORREF*)(sys_pal_template + i) & 0x00ffffff) )
1048 /***********************************************************************
1049 * X11DRV_LookupSysPaletteExact
1051 static int X11DRV_LookupSysPaletteExact( COLORREF col )
1054 BYTE r = GetRValue(col), g = GetGValue(col), b = GetBValue(col);
1055 for( i = 0; i < palette_size; i++ )
1057 if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */
1058 if( COLOR_sysPal[i].peRed == r &&
1059 COLOR_sysPal[i].peGreen == g &&
1060 COLOR_sysPal[i].peBlue == b )
1067 /***********************************************************************
1068 * X11DRV_PALETTE_SetMapping
1070 * Set the color-mapping table for selected palette.
1071 * Return number of entries which mapping has changed.
1073 static UINT X11DRV_PALETTE_SetMapping( PALETTEOBJ* palPtr, UINT uStart, UINT uNum, BOOL mapOnly )
1076 int prevMapping = (palPtr->mapping) ? 1 : 0;
1081 /* reset dynamic system palette entries */
1083 if( !mapOnly && X11DRV_PALETTE_firstFree != -1)
1084 X11DRV_PALETTE_FormatSystemPalette();
1086 /* initialize palette mapping table */
1087 if (palPtr->mapping)
1088 mapping = HeapReAlloc( GetProcessHeap(), 0, palPtr->mapping,
1089 sizeof(int)*palPtr->logpalette.palNumEntries);
1091 mapping = HeapAlloc( GetProcessHeap(), 0,
1092 sizeof(int)*palPtr->logpalette.palNumEntries);
1094 if(mapping == NULL) {
1095 ERR("Can not allocate new mapping -- memory exausted!\n");
1098 palPtr->mapping = mapping;
1100 if (uStart >= palPtr->logpalette.palNumEntries) return 0;
1102 if (uStart + uNum > palPtr->logpalette.palNumEntries)
1103 uNum = palPtr->logpalette.palNumEntries - uStart;
1105 for( uNum += uStart; uStart < uNum; uStart++ )
1110 /* Even though the docs say that only one flag is to be set,
1111 * they are a bitmask. At least one app sets more than one at
1113 if ( palPtr->logpalette.palPalEntry[uStart].peFlags & PC_EXPLICIT ) {
1114 /* palette entries are indices into system palette */
1115 index = *(WORD*)(palPtr->logpalette.palPalEntry + uStart);
1116 if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) )
1118 WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index);
1121 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1123 if ( palPtr->logpalette.palPalEntry[uStart].peFlags & PC_RESERVED ) {
1124 /* forbid future mappings to this entry */
1125 flag |= PC_SYS_RESERVED;
1128 if (! (palPtr->logpalette.palPalEntry[uStart].peFlags & PC_NOCOLLAPSE) ) {
1129 /* try to collapse identical colors */
1130 index = X11DRV_LookupSysPaletteExact(*(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1135 if( X11DRV_PALETTE_firstFree > 0 )
1138 index = X11DRV_PALETTE_firstFree; /* ought to be available */
1139 X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index];
1141 color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index;
1142 color.red = palPtr->logpalette.palPalEntry[uStart].peRed << 8;
1143 color.green = palPtr->logpalette.palPalEntry[uStart].peGreen << 8;
1144 color.blue = palPtr->logpalette.palPalEntry[uStart].peBlue << 8;
1145 color.flags = DoRed | DoGreen | DoBlue;
1147 XStoreColor(gdi_display, X11DRV_PALETTE_PaletteXColormap, &color);
1148 wine_tsx11_unlock();
1150 COLOR_sysPal[index] = palPtr->logpalette.palPalEntry[uStart];
1151 COLOR_sysPal[index].peFlags = flag;
1152 X11DRV_PALETTE_freeList[index] = 0;
1154 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1157 else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL )
1159 index = X11DRV_PALETTE_ToPhysical( NULL, 0x00ffffff &
1160 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart));
1164 /* we have to map to existing entry in the system palette */
1166 index = X11DRV_SysPaletteLookupPixel( *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), TRUE);
1168 palPtr->logpalette.palPalEntry[uStart].peFlags |= PC_SYS_USED;
1170 if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index];
1173 if( !prevMapping || palPtr->mapping[uStart] != index ) iRemapped++;
1174 palPtr->mapping[uStart] = index;
1176 TRACE("entry %i (%lx) -> pixel %i\n", uStart,
1177 *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), index);
1183 /***********************************************************************
1184 * GetSystemPaletteEntries (X11DRV.@)
1186 UINT X11DRV_GetSystemPaletteEntries( X11DRV_PDEVICE *physDev, UINT start, UINT count,
1187 LPPALETTEENTRY entries )
1191 if (!entries) return palette_size;
1192 if (start >= palette_size) return 0;
1193 if (start + count >= palette_size) count = palette_size - start;
1195 for (i = 0; i < count; i++)
1197 entries[i].peRed = COLOR_sysPal[start + i].peRed;
1198 entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
1199 entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
1200 entries[i].peFlags = 0;
1201 TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
1207 /***********************************************************************
1208 * GetNearestColor (X11DRV.@)
1210 COLORREF X11DRV_GetNearestColor( X11DRV_PDEVICE *physDev, COLORREF color )
1212 unsigned char spec_type = color >> 24;
1215 if (!palette_size) return color;
1217 if (spec_type == 1 || spec_type == 2)
1219 /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */
1223 HPALETTE hpal = GetCurrentObject( physDev->hdc, OBJ_PAL );
1225 if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE );
1227 if (spec_type == 2) /* PALETTERGB */
1228 index = GetNearestPaletteIndex( hpal, color );
1229 else /* PALETTEINDEX */
1230 index = LOWORD(color);
1232 if (!GetPaletteEntries( hpal, index, 1, &entry ))
1234 WARN("RGB(%lx) : idx %d is out of bounds, assuming NULL\n", color, index );
1235 if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID;
1237 color = RGB( entry.peRed, entry.peGreen, entry.peBlue );
1239 color &= 0x00ffffff;
1240 nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE)));
1242 TRACE("(%06lx): returning %06lx\n", color, nearest );
1247 /***********************************************************************
1248 * RealizePalette (X11DRV.@)
1250 UINT X11DRV_RealizePalette( X11DRV_PDEVICE *physDev, HPALETTE hpal, BOOL primary )
1255 if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0;
1257 if (!(palPtr = GDI_GetObjPtr( hpal, PALETTE_MAGIC ))) return 0;
1258 ret = X11DRV_PALETTE_SetMapping( palPtr, 0, palPtr->logpalette.palNumEntries, !primary );
1259 GDI_ReleaseObj( hpal );
1264 /***********************************************************************
1265 * RealizeDefaultPalette (X11DRV.@)
1267 UINT X11DRV_RealizeDefaultPalette( X11DRV_PDEVICE *physDev )
1271 if (palette_size && GetObjectType(physDev->hdc) != OBJ_MEMDC)
1273 PALETTEOBJ* palPtr = GDI_GetObjPtr( GetStockObject(DEFAULT_PALETTE), PALETTE_MAGIC );
1276 /* lookup is needed to account for SetSystemPaletteUse() stuff */
1279 for( i = 0; i < 20; i++ )
1281 index = X11DRV_PALETTE_LookupSystemXPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
1282 /* mapping is allocated in COLOR_InitPalette() */
1283 if( index != palPtr->mapping[i] )
1285 palPtr->mapping[i]=index;
1289 GDI_ReleaseObj( GetStockObject(DEFAULT_PALETTE) );