/* * X11DRV OEM bitmap objects * * Copyright 1994, 1995 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include <stdarg.h> #include <stdlib.h> #include <string.h> #include "windef.h" #include "winbase.h" #include "x11drv.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(palette); /* Palette indexed mode: * logical palette -> mapping -> pixel * * * Windows needs contiguous color space ( from 0 to n ) but * it is possible only with the private colormap. Otherwise we * have to map DC palette indices to real pixel values. With * private colormaps it boils down to the identity mapping. The * other special case is when we have a fixed color visual with * the screendepth > 8 - we abandon palette mappings altogether * because pixel values can be calculated without X server * assistance. */ #define NB_RESERVED_COLORS 20 /* number of fixed colors in system palette */ #define PC_SYS_USED 0x80 /* palentry is used (both system and logical) */ #define PC_SYS_RESERVED 0x40 /* system palentry is not to be mapped to */ static PALETTEENTRY *COLOR_sysPal; /* current system palette */ static int COLOR_gapStart = 256; static int COLOR_gapEnd = -1; static int COLOR_gapFilled = 0; UINT16 X11DRV_PALETTE_PaletteFlags = 0; /* initialize to zero to handle abortive X11DRV_PALETTE_VIRTUAL visuals */ ColorShifts X11DRV_PALETTE_default_shifts = { {0,0,0,}, {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0} }; static int X11DRV_PALETTE_Graymax = 0; static int palette_size; /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */ static int X11DRV_PALETTE_firstFree = 0; static unsigned char X11DRV_PALETTE_freeList[256]; static XContext palette_context; /* X context to associate a color mapping to a palette */ static CRITICAL_SECTION palette_cs; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &palette_cs, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": palette_cs") } }; static CRITICAL_SECTION palette_cs = { &critsect_debug, -1, 0, 0, 0, 0 }; /**********************************************************************/ /* Map an EGA index (0..15) to a pixel value in the system color space. */ int X11DRV_PALETTE_mapEGAPixel[16]; /**********************************************************************/ #define NB_COLORCUBE_START_INDEX 63 #define NB_PALETTE_EMPTY_VALUE -1 /* Maps entry in the system palette to X pixel value */ int *X11DRV_PALETTE_PaletteToXPixel = NULL; /* Maps pixel to the entry in the system palette */ int *X11DRV_PALETTE_XPixelToPalette = NULL; /**********************************************************************/ static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template ); static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template ); static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template ); static void X11DRV_PALETTE_FormatSystemPalette(void); static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c); static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col); /*********************************************************************** * palette_get_mapping */ static int *palette_get_mapping( HPALETTE hpal ) { int *mapping; if (XFindContext( gdi_display, (XID)hpal, palette_context, (char **)&mapping )) mapping = NULL; return mapping; } /*********************************************************************** * palette_set_mapping */ static void palette_set_mapping( HPALETTE hpal, int *mapping ) { XSaveContext( gdi_display, (XID)hpal, palette_context, (char *)mapping ); } /*********************************************************************** * COLOR_Init * * Initialize color management. */ int X11DRV_PALETTE_Init(void) { int *mapping; PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS]; TRACE("initializing palette manager...\n"); palette_context = XUniqueContext(); palette_size = default_visual.colormap_size; switch(default_visual.class) { case DirectColor: X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL; case GrayScale: case PseudoColor: if (private_color_map) { XSetWindowAttributes win_attr; XFreeColormap( gdi_display, default_colormap ); default_colormap = XCreateColormap( gdi_display, root_window, default_visual.visual, AllocAll ); if (default_colormap) { X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_PRIVATE; if( root_window != DefaultRootWindow(gdi_display) ) { win_attr.colormap = default_colormap; XChangeWindowAttributes( gdi_display, root_window, CWColormap, &win_attr ); } } } break; case StaticGray: X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED; X11DRV_PALETTE_Graymax = (1 << default_visual.depth)-1; break; case TrueColor: X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL; case StaticColor: X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED; X11DRV_PALETTE_ComputeColorShifts(&X11DRV_PALETTE_default_shifts, default_visual.red_mask, default_visual.green_mask, default_visual.blue_mask); break; } if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) { palette_size = 0; } else { GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template ); if ((mapping = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int) * NB_RESERVED_COLORS ))) palette_set_mapping( GetStockObject(DEFAULT_PALETTE), mapping ); if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE) X11DRV_PALETTE_BuildPrivateMap( sys_pal_template ); else X11DRV_PALETTE_BuildSharedMap( sys_pal_template ); /* Build free list */ if( X11DRV_PALETTE_firstFree != -1 ) X11DRV_PALETTE_FormatSystemPalette(); X11DRV_PALETTE_FillDefaultColors( sys_pal_template ); palette_size = default_visual.colormap_size; } return palette_size; } /*********************************************************************** * X11DRV_PALETTE_ComputeChannelShift * * Calculate conversion parameters for a given color mask */ static void X11DRV_PALETTE_ComputeChannelShift(unsigned long maskbits, ChannelShift *physical, ChannelShift *to_logical) { int i; if (maskbits==0) { physical->shift=0; physical->scale=0; physical->max=0; to_logical->shift=0; to_logical->scale=0; to_logical->max=0; return; } for(i=0;!(maskbits&1);i++) maskbits >>= 1; physical->shift = i; physical->max = maskbits; for(i=0;maskbits!=0;i++) maskbits >>= 1; physical->scale = i; if (physical->scale>8) { /* On FreeBSD, VNC's default 32bpp mode is bgrabb (ffc00000,3ff800,7ff)! * So we adjust the shifts to also normalize the color fields to * the Win32 standard of 8 bits per color. */ to_logical->shift=physical->shift+(physical->scale-8); to_logical->scale=8; to_logical->max=0xff; } else { to_logical->shift=physical->shift; to_logical->scale=physical->scale; to_logical->max=physical->max; } } /*********************************************************************** * X11DRV_PALETTE_ComputeColorShifts * * Calculate conversion parameters for a given color */ void X11DRV_PALETTE_ComputeColorShifts(ColorShifts *shifts, unsigned long redMask, unsigned long greenMask, unsigned long blueMask) { X11DRV_PALETTE_ComputeChannelShift(redMask, &shifts->physicalRed, &shifts->logicalRed); X11DRV_PALETTE_ComputeChannelShift(greenMask, &shifts->physicalGreen, &shifts->logicalGreen); X11DRV_PALETTE_ComputeChannelShift(blueMask, &shifts->physicalBlue, &shifts->logicalBlue); } /*********************************************************************** * X11DRV_PALETTE_BuildPrivateMap * * Allocate colorcells and initialize mapping tables. */ static BOOL X11DRV_PALETTE_BuildPrivateMap( const PALETTEENTRY *sys_pal_template ) { /* Private colormap - identity mapping */ XColor color; int i; if((COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*palette_size)) == NULL) { WARN("Unable to allocate the system palette\n"); return FALSE; } TRACE("Building private map - %i palette entries\n", palette_size); /* Allocate system palette colors */ for( i=0; i < palette_size; i++ ) { if( i < NB_RESERVED_COLORS/2 ) { color.red = sys_pal_template[i].peRed * 65535 / 255; color.green = sys_pal_template[i].peGreen * 65535 / 255; color.blue = sys_pal_template[i].peBlue * 65535 / 255; COLOR_sysPal[i] = sys_pal_template[i]; COLOR_sysPal[i].peFlags |= PC_SYS_USED; } else if( i >= palette_size - NB_RESERVED_COLORS/2 ) { int j = NB_RESERVED_COLORS + i - palette_size; color.red = sys_pal_template[j].peRed * 65535 / 255; color.green = sys_pal_template[j].peGreen * 65535 / 255; color.blue = sys_pal_template[j].peBlue * 65535 / 255; COLOR_sysPal[i] = sys_pal_template[j]; COLOR_sysPal[i].peFlags |= PC_SYS_USED; } color.flags = DoRed | DoGreen | DoBlue; color.pixel = i; XStoreColor(gdi_display, default_colormap, &color); /* Set EGA mapping if color is from the first or last eight */ if (i < 8) X11DRV_PALETTE_mapEGAPixel[i] = color.pixel; else if (i >= palette_size - 8 ) X11DRV_PALETTE_mapEGAPixel[i - (palette_size - 16)] = color.pixel; } X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL; COLOR_gapStart = 256; COLOR_gapEnd = -1; X11DRV_PALETTE_firstFree = (palette_size > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1; return FALSE; } /*********************************************************************** * X11DRV_PALETTE_BuildSharedMap * * Allocate colorcells and initialize mapping tables. */ static BOOL X11DRV_PALETTE_BuildSharedMap( const PALETTEENTRY *sys_pal_template ) { XColor color; unsigned long sysPixel[NB_RESERVED_COLORS]; unsigned long* pixDynMapping = NULL; unsigned long plane_masks[1]; int i, j, warn = 0; int diff, r, g, b, bp = 0, wp = 1; int step = 1; unsigned int max = 256; Colormap defaultCM; XColor defaultColors[256]; /* Copy the first bunch of colors out of the default colormap to prevent * colormap flashing as much as possible. We're likely to get the most * important Window Manager colors, etc in the first 128 colors */ defaultCM = DefaultColormap( gdi_display, DefaultScreen(gdi_display) ); if (copy_default_colors > 256) copy_default_colors = 256; for (i = 0; i < copy_default_colors; i++) defaultColors[i].pixel = (long) i; XQueryColors(gdi_display, defaultCM, &defaultColors[0], copy_default_colors); for (i = 0; i < copy_default_colors; i++) XAllocColor( gdi_display, default_colormap, &defaultColors[i] ); if (alloc_system_colors > 256) alloc_system_colors = 256; else if (alloc_system_colors < 20) alloc_system_colors = 20; TRACE("%d colors configured.\n", alloc_system_colors); TRACE("Building shared map - %i palette entries\n", palette_size); /* Be nice and allocate system colors as read-only */ for( i = 0; i < NB_RESERVED_COLORS; i++ ) { color.red = sys_pal_template[i].peRed * 65535 / 255; color.green = sys_pal_template[i].peGreen * 65535 / 255; color.blue = sys_pal_template[i].peBlue * 65535 / 255; color.flags = DoRed | DoGreen | DoBlue; if (!XAllocColor( gdi_display, default_colormap, &color )) { XColor best, c; if( !warn++ ) { WARN("Not enough colors for the full system palette.\n"); bp = BlackPixel(gdi_display, DefaultScreen(gdi_display)); wp = WhitePixel(gdi_display, DefaultScreen(gdi_display)); max = 0xffffffff >> (32 - default_visual.depth); if( max > 256 ) { step = max/256; max = 256; } } /* reinit color (XAllocColor() may change it) * and map to the best shared colorcell */ color.red = sys_pal_template[i].peRed * 65535 / 255; color.green = sys_pal_template[i].peGreen * 65535 / 255; color.blue = sys_pal_template[i].peBlue * 65535 / 255; best.pixel = best.red = best.green = best.blue = 0; for( c.pixel = 0, diff = 0x7fffffff; c.pixel < max; c.pixel += step ) { XQueryColor(gdi_display, default_colormap, &c); r = (c.red - color.red)>>8; g = (c.green - color.green)>>8; b = (c.blue - color.blue)>>8; r = r*r + g*g + b*b; if( r < diff ) { best = c; diff = r; } } if( XAllocColor(gdi_display, default_colormap, &best) ) color.pixel = best.pixel; else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp; } sysPixel[i] = color.pixel; TRACE("syscolor(%x) -> pixel %i\n", *(const COLORREF*)(sys_pal_template+i), (int)color.pixel); /* Set EGA mapping if color in the first or last eight */ if (i < 8) X11DRV_PALETTE_mapEGAPixel[i] = color.pixel; else if (i >= NB_RESERVED_COLORS - 8 ) X11DRV_PALETTE_mapEGAPixel[i - (NB_RESERVED_COLORS-16)] = color.pixel; } /* now allocate changeable set */ if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) ) { int c_min = 0, c_max = palette_size, c_val; TRACE("Dynamic colormap...\n"); /* let's become the first client that actually follows * X guidelines and does binary search... */ if((pixDynMapping = HeapAlloc(GetProcessHeap(), 0, sizeof(long)*palette_size)) == NULL) { WARN("Out of memory while building system palette.\n"); return FALSE; } /* comment this out if you want to debug palette init */ XGrabServer(gdi_display); while( c_max - c_min > 0 ) { c_val = (c_max + c_min)/2 + (c_max + c_min)%2; if( !XAllocColorCells(gdi_display, default_colormap, False, plane_masks, 0, pixDynMapping, c_val) ) c_max = c_val - 1; else { XFreeColors(gdi_display, default_colormap, pixDynMapping, c_val, 0); c_min = c_val; } } if( c_min > alloc_system_colors - NB_RESERVED_COLORS) c_min = alloc_system_colors - NB_RESERVED_COLORS; c_min = (c_min/2) + (c_min/2); /* need even set for split palette */ if( c_min > 0 ) if( !XAllocColorCells(gdi_display, default_colormap, False, plane_masks, 0, pixDynMapping, c_min) ) { WARN("Inexplicable failure during colorcell allocation.\n"); c_min = 0; } palette_size = c_min + NB_RESERVED_COLORS; XUngrabServer(gdi_display); TRACE("adjusted size %i colorcells\n", palette_size); } else if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) { /* virtual colorspace - ToPhysical takes care of * color translations but we have to allocate full palette * to maintain compatibility */ palette_size = 256; TRACE("Virtual colorspace - screendepth %i\n", default_visual.depth); } else palette_size = NB_RESERVED_COLORS; /* system palette only - however we can alloc a bunch * of colors and map to them */ TRACE("Shared system palette uses %i colors.\n", palette_size); /* set gap to account for pixel shortage. It has to be right in the center * of the system palette because otherwise raster ops get screwed. */ if( palette_size >= 256 ) { COLOR_gapStart = 256; COLOR_gapEnd = -1; } else { COLOR_gapStart = palette_size/2; COLOR_gapEnd = 255 - palette_size/2; } X11DRV_PALETTE_firstFree = ( palette_size > NB_RESERVED_COLORS && (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) ) ? NB_RESERVED_COLORS/2 : -1; COLOR_sysPal = HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256); if(COLOR_sysPal == NULL) { ERR("Unable to allocate the system palette!\n"); HeapFree(GetProcessHeap(), 0, pixDynMapping); return FALSE; } /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */ if (default_visual.depth <= 8) { X11DRV_PALETTE_XPixelToPalette = HeapAlloc( GetProcessHeap(), 0, 256 * sizeof(int) ); if(X11DRV_PALETTE_XPixelToPalette == NULL) { ERR("Out of memory: XPixelToPalette!\n"); HeapFree(GetProcessHeap(), 0, pixDynMapping); return FALSE; } for( i = 0; i < 256; i++ ) X11DRV_PALETTE_XPixelToPalette[i] = NB_PALETTE_EMPTY_VALUE; } /* for hicolor visuals PaletteToPixel mapping is used to skip * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical(). */ X11DRV_PALETTE_PaletteToXPixel = HeapAlloc(GetProcessHeap(),0,sizeof(int)*256); if(X11DRV_PALETTE_PaletteToXPixel == NULL) { ERR("Out of memory: PaletteToXPixel!\n"); HeapFree(GetProcessHeap(), 0, pixDynMapping); return FALSE; } for( i = j = 0; i < 256; i++ ) { if( i >= COLOR_gapStart && i <= COLOR_gapEnd ) { X11DRV_PALETTE_PaletteToXPixel[i] = NB_PALETTE_EMPTY_VALUE; COLOR_sysPal[i].peFlags = 0; /* mark as unused */ continue; } if( i < NB_RESERVED_COLORS/2 ) { X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i]; COLOR_sysPal[i] = sys_pal_template[i]; COLOR_sysPal[i].peFlags |= PC_SYS_USED; } else if( i >= 256 - NB_RESERVED_COLORS/2 ) { X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256]; COLOR_sysPal[i] = sys_pal_template[(i + NB_RESERVED_COLORS) - 256]; COLOR_sysPal[i].peFlags |= PC_SYS_USED; } else if( pixDynMapping ) X11DRV_PALETTE_PaletteToXPixel[i] = pixDynMapping[j++]; else X11DRV_PALETTE_PaletteToXPixel[i] = i; TRACE("index %i -> pixel %i\n", i, X11DRV_PALETTE_PaletteToXPixel[i]); if( X11DRV_PALETTE_XPixelToPalette ) X11DRV_PALETTE_XPixelToPalette[X11DRV_PALETTE_PaletteToXPixel[i]] = i; } HeapFree(GetProcessHeap(), 0, pixDynMapping); return TRUE; } /*********************************************************************** * Colormap Initialization */ static void X11DRV_PALETTE_FillDefaultColors( const PALETTEENTRY *sys_pal_template ) { /* initialize unused entries to what Windows uses as a color * cube - based on Greg Kreider's code. */ int i = 0, idx = 0; int red, no_r, inc_r; int green, no_g, inc_g; int blue, no_b, inc_b; if (palette_size <= NB_RESERVED_COLORS) return; while (i*i*i < (palette_size - NB_RESERVED_COLORS)) i++; no_r = no_g = no_b = --i; if ((no_r * (no_g+1) * no_b) < (palette_size - NB_RESERVED_COLORS)) no_g++; if ((no_r * no_g * (no_b+1)) < (palette_size - NB_RESERVED_COLORS)) no_b++; inc_r = (255 - NB_COLORCUBE_START_INDEX)/no_r; inc_g = (255 - NB_COLORCUBE_START_INDEX)/no_g; inc_b = (255 - NB_COLORCUBE_START_INDEX)/no_b; idx = X11DRV_PALETTE_firstFree; if( idx != -1 ) for (blue = NB_COLORCUBE_START_INDEX; blue < 256 && idx; blue += inc_b ) for (green = NB_COLORCUBE_START_INDEX; green < 256 && idx; green += inc_g ) for (red = NB_COLORCUBE_START_INDEX; red < 256 && idx; red += inc_r ) { /* weird but true */ if( red == NB_COLORCUBE_START_INDEX && green == red && blue == green ) continue; COLOR_sysPal[idx].peRed = red; COLOR_sysPal[idx].peGreen = green; COLOR_sysPal[idx].peBlue = blue; /* set X color */ if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) { ColorShifts *shifts = &X11DRV_PALETTE_default_shifts; if (shifts->physicalRed.max != 255) no_r = (red * shifts->physicalRed.max) / 255; if (shifts->physicalGreen.max != 255) no_g = (green * shifts->physicalGreen.max) / 255; if (shifts->physicalBlue.max != 255) no_b = (blue * shifts->physicalBlue.max) / 255; X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << shifts->physicalRed.shift) | (no_g << shifts->physicalGreen.shift) | (no_b << shifts->physicalBlue.shift); } else if( !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) ) { XColor color; color.pixel = (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[idx] : idx; color.red = COLOR_sysPal[idx].peRed << 8; color.green = COLOR_sysPal[idx].peGreen << 8; color.blue = COLOR_sysPal[idx].peBlue << 8; color.flags = DoRed | DoGreen | DoBlue; XStoreColor(gdi_display, default_colormap, &color); } idx = X11DRV_PALETTE_freeList[idx]; } /* try to fill some entries in the "gap" with * what's already in the colormap - they will be * mappable to but not changeable. */ if( COLOR_gapStart < COLOR_gapEnd && X11DRV_PALETTE_XPixelToPalette ) { XColor xc; int r, g, b, max; max = alloc_system_colors - (256 - (COLOR_gapEnd - COLOR_gapStart)); for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ ) if( X11DRV_PALETTE_XPixelToPalette[i] == NB_PALETTE_EMPTY_VALUE ) { xc.pixel = i; XQueryColor(gdi_display, default_colormap, &xc); r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8; if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor( sys_pal_template, RGB(r, g, b)) && XAllocColor(gdi_display, default_colormap, &xc) ) { X11DRV_PALETTE_XPixelToPalette[xc.pixel] = idx; X11DRV_PALETTE_PaletteToXPixel[idx] = xc.pixel; *(COLORREF*)(COLOR_sysPal + idx) = RGB(r, g, b); COLOR_sysPal[idx++].peFlags |= PC_SYS_USED; if( --max <= 0 ) break; } } COLOR_gapFilled = idx - COLOR_gapStart; } } /*********************************************************************** * X11DRV_IsSolidColor * * Check whether 'color' can be represented with a solid color. */ BOOL X11DRV_IsSolidColor( COLORREF color ) { int i; const PALETTEENTRY *pEntry = COLOR_sysPal; if (color & 0xff000000) return TRUE; /* indexed color */ if (!color || (color == 0xffffff)) return TRUE; /* black or white */ if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return TRUE; /* no palette */ EnterCriticalSection( &palette_cs ); for (i = 0; i < palette_size ; i++, pEntry++) { if( i < COLOR_gapStart || i > COLOR_gapEnd ) if ((GetRValue(color) == pEntry->peRed) && (GetGValue(color) == pEntry->peGreen) && (GetBValue(color) == pEntry->peBlue)) { LeaveCriticalSection( &palette_cs ); return TRUE; } } LeaveCriticalSection( &palette_cs ); return FALSE; } /*********************************************************************** * X11DRV_PALETTE_ToLogical * * Return RGB color for given X pixel. */ COLORREF X11DRV_PALETTE_ToLogical(X11DRV_PDEVICE *physDev, int pixel) { XColor color; /* check for hicolor visuals first */ if ( (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) && !X11DRV_PALETTE_Graymax ) { ColorShifts *shifts = &X11DRV_PALETTE_default_shifts; if(physDev->color_shifts) shifts = physDev->color_shifts; color.red = (pixel >> shifts->logicalRed.shift) & shifts->logicalRed.max; if (shifts->logicalRed.scale<8) color.red= color.red << (8-shifts->logicalRed.scale) | color.red >> (2*shifts->logicalRed.scale-8); color.green = (pixel >> shifts->logicalGreen.shift) & shifts->logicalGreen.max; if (shifts->logicalGreen.scale<8) color.green=color.green << (8-shifts->logicalGreen.scale) | color.green >> (2*shifts->logicalGreen.scale-8); color.blue = (pixel >> shifts->logicalBlue.shift) & shifts->logicalBlue.max; if (shifts->logicalBlue.scale<8) color.blue= color.blue << (8-shifts->logicalBlue.scale) | color.blue >> (2*shifts->logicalBlue.scale-8); return RGB(color.red,color.green,color.blue); } /* check if we can bypass X */ if ((default_visual.depth <= 8) && (pixel < 256) && !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) { COLORREF ret; EnterCriticalSection( &palette_cs ); ret = *(COLORREF *)(COLOR_sysPal + (X11DRV_PALETTE_XPixelToPalette ? X11DRV_PALETTE_XPixelToPalette[pixel]: pixel)) & 0x00ffffff; LeaveCriticalSection( &palette_cs ); return ret; } color.pixel = pixel; XQueryColor(gdi_display, default_colormap, &color); return RGB(color.red >> 8, color.green >> 8, color.blue >> 8); } /*********************************************************************** * X11DRV_SysPaletteLookupPixel */ static int X11DRV_SysPaletteLookupPixel( COLORREF col, BOOL skipReserved ) { int i, best = 0, diff = 0x7fffffff; int r,g,b; for( i = 0; i < palette_size && diff ; i++ ) { if( !(COLOR_sysPal[i].peFlags & PC_SYS_USED) || (skipReserved && COLOR_sysPal[i].peFlags & PC_SYS_RESERVED) ) continue; r = COLOR_sysPal[i].peRed - GetRValue(col); g = COLOR_sysPal[i].peGreen - GetGValue(col); b = COLOR_sysPal[i].peBlue - GetBValue(col); r = r*r + g*g + b*b; if( r < diff ) { best = i; diff = r; } } return best; } static inline BOOL colour_is_brighter(RGBQUAD c1, RGBQUAD c2) { return (c1.rgbRed * c1.rgbRed + c1.rgbGreen * c1.rgbGreen + c1.rgbBlue * c1.rgbBlue) > (c2.rgbRed * c2.rgbRed + c2.rgbGreen * c2.rgbGreen + c2.rgbBlue * c2.rgbBlue); } /*********************************************************************** * X11DRV_PALETTE_GetColor * * Resolve PALETTEINDEX/PALETTERGB/DIBINDEX COLORREFs to an RGB COLORREF. */ COLORREF X11DRV_PALETTE_GetColor( X11DRV_PDEVICE *physDev, COLORREF color ) { HPALETTE hPal = GetCurrentObject(physDev->dev.hdc, OBJ_PAL ); PALETTEENTRY entry; if (color & (1 << 24)) /* PALETTEINDEX */ { unsigned int idx = LOWORD(color); if (!GetPaletteEntries( hPal, idx, 1, &entry )) return 0; return RGB( entry.peRed, entry.peGreen, entry.peBlue ); } if (color >> 24 == 2) /* PALETTERGB */ { unsigned int idx = GetNearestPaletteIndex( hPal, color & 0xffffff ); if (!GetPaletteEntries( hPal, idx, 1, &entry )) return 0; return RGB( entry.peRed, entry.peGreen, entry.peBlue ); } if (color >> 16 == 0x10ff) /* DIBINDEX */ return 0; return color & 0xffffff; } /*********************************************************************** * X11DRV_PALETTE_ToPhysical * * Return the physical color closest to 'color'. */ int X11DRV_PALETTE_ToPhysical( X11DRV_PDEVICE *physDev, COLORREF color ) { WORD index = 0; HPALETTE hPal = GetCurrentObject(physDev->dev.hdc, OBJ_PAL ); int *mapping = palette_get_mapping( hPal ); PALETTEENTRY entry; ColorShifts *shifts = &X11DRV_PALETTE_default_shifts; if(physDev->color_shifts) shifts = physDev->color_shifts; if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED ) { /* there is no colormap limitation; we are going to have to compute * the pixel value from the visual information stored earlier */ unsigned long red, green, blue; if (color & (1 << 24)) /* PALETTEINDEX */ { unsigned int idx = LOWORD( color ); if (!GetPaletteEntries( hPal, idx, 1, &entry )) { WARN("PALETTEINDEX(%x) : idx %d is out of bounds, assuming black\n", color, idx); return 0; } if (mapping) return mapping[idx]; red = entry.peRed; green = entry.peGreen; blue = entry.peBlue; } else if (color >> 16 == 0x10ff) /* DIBINDEX */ { return 0; } else /* RGB */ { if (physDev->depth == 1) return (((color >> 16) & 0xff) + ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0; red = GetRValue( color ); green = GetGValue( color ); blue = GetBValue( color ); } if (X11DRV_PALETTE_Graymax) { /* grayscale only; return scaled value */ return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500; } else { /* scale each individually and construct the TrueColor pixel value */ if (shifts->physicalRed.scale < 8) red = red >> (8-shifts->physicalRed.scale); else if (shifts->physicalRed.scale > 8) red = red << (shifts->physicalRed.scale-8) | red >> (16-shifts->physicalRed.scale); if (shifts->physicalGreen.scale < 8) green = green >> (8-shifts->physicalGreen.scale); else if (shifts->physicalGreen.scale > 8) green = green << (shifts->physicalGreen.scale-8) | green >> (16-shifts->physicalGreen.scale); if (shifts->physicalBlue.scale < 8) blue = blue >> (8-shifts->physicalBlue.scale); else if (shifts->physicalBlue.scale > 8) blue = blue << (shifts->physicalBlue.scale-8) | blue >> (16-shifts->physicalBlue.scale); return (red << shifts->physicalRed.shift) | (green << shifts->physicalGreen.shift) | (blue << shifts->physicalBlue.shift); } } else { if (!mapping) WARN("Palette %p is not realized\n", hPal); if (color & (1 << 24)) /* PALETTEINDEX */ { index = LOWORD( color ); if (!GetPaletteEntries( hPal, index, 1, &entry )) WARN("PALETTEINDEX(%x) : index %i is out of bounds\n", color, index); else if (mapping) index = mapping[index]; } else if (color >> 24 == 2) /* PALETTERGB */ { index = GetNearestPaletteIndex( hPal, color ); if (mapping) index = mapping[index]; } else if (color >> 16 == 0x10ff) /* DIBINDEX */ { return 0; } else /* RGB */ { if (physDev->depth == 1) return (((color >> 16) & 0xff) + ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0; EnterCriticalSection( &palette_cs ); index = X11DRV_SysPaletteLookupPixel( color & 0xffffff, FALSE); if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index]; LeaveCriticalSection( &palette_cs ); } } return index; } /*********************************************************************** * X11DRV_PALETTE_LookupPixel */ static int X11DRV_PALETTE_LookupPixel(ColorShifts *shifts, COLORREF color ) { unsigned char spec_type = color >> 24; /* Only accept RGB which has spec_type = 0 */ if(spec_type) return 0; color &= 0xffffff; if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED ) { unsigned long red, green, blue; red = GetRValue(color); green = GetGValue(color); blue = GetBValue(color); if (X11DRV_PALETTE_Graymax) { /* grayscale only; return scaled value */ return ( (red * 30 + green * 59 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500; } else { /* No shifts are set in case of 1-bit */ if(!shifts) shifts = &X11DRV_PALETTE_default_shifts; /* scale each individually and construct the TrueColor pixel value */ if (shifts->physicalRed.scale < 8) red = red >> (8-shifts->physicalRed.scale); else if (shifts->physicalRed.scale > 8) red = red << (shifts->physicalRed.scale-8) | red >> (16-shifts->physicalRed.scale); if (shifts->physicalGreen.scale < 8) green = green >> (8-shifts->physicalGreen.scale); else if (shifts->physicalGreen.scale > 8) green = green << (shifts->physicalGreen.scale-8) | green >> (16-shifts->physicalGreen.scale); if (shifts->physicalBlue.scale < 8) blue = blue >> (8-shifts->physicalBlue.scale); else if (shifts->physicalBlue.scale > 8) blue = blue << (shifts->physicalBlue.scale-8) | blue >> (16-shifts->physicalBlue.scale); return (red << shifts->physicalRed.shift) | (green << shifts->physicalGreen.shift) | (blue << shifts->physicalBlue.shift); } } else { WORD index; HPALETTE hPal = GetStockObject(DEFAULT_PALETTE); int *mapping = palette_get_mapping( hPal ); if (!mapping) WARN("Palette %p is not realized\n", hPal); EnterCriticalSection( &palette_cs ); index = X11DRV_SysPaletteLookupPixel( color, FALSE); if (X11DRV_PALETTE_PaletteToXPixel) index = X11DRV_PALETTE_PaletteToXPixel[index]; LeaveCriticalSection( &palette_cs ); return index; } } /*********************************************************************** * X11DRV_PALETTE_LookupSystemXPixel */ static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col) { int i, best = 0, diff = 0x7fffffff; int size = palette_size; int r,g,b; for( i = 0; i < size && diff ; i++ ) { if( i == NB_RESERVED_COLORS/2 ) { int newi = size - NB_RESERVED_COLORS/2; if (newi>i) i=newi; } r = COLOR_sysPal[i].peRed - GetRValue(col); g = COLOR_sysPal[i].peGreen - GetGValue(col); b = COLOR_sysPal[i].peBlue - GetBValue(col); r = r*r + g*g + b*b; if( r < diff ) { best = i; diff = r; } } return (X11DRV_PALETTE_PaletteToXPixel)? X11DRV_PALETTE_PaletteToXPixel[best] : best; } /*********************************************************************** * X11DRV_PALETTE_FormatSystemPalette */ static void X11DRV_PALETTE_FormatSystemPalette(void) { /* Build free list so we'd have an easy way to find * out if there are any available colorcells. */ int i, j = X11DRV_PALETTE_firstFree = NB_RESERVED_COLORS/2; COLOR_sysPal[j].peFlags = 0; for( i = NB_RESERVED_COLORS/2 + 1 ; i < 256 - NB_RESERVED_COLORS/2 ; i++ ) if( i < COLOR_gapStart || i > COLOR_gapEnd ) { COLOR_sysPal[i].peFlags = 0; /* unused tag */ X11DRV_PALETTE_freeList[j] = i; /* next */ j = i; } X11DRV_PALETTE_freeList[j] = 0; } /*********************************************************************** * X11DRV_PALETTE_CheckSysColor */ static BOOL X11DRV_PALETTE_CheckSysColor( const PALETTEENTRY *sys_pal_template, COLORREF c) { int i; for( i = 0; i < NB_RESERVED_COLORS; i++ ) if( c == (*(const COLORREF*)(sys_pal_template + i) & 0x00ffffff) ) return 0; return 1; } /*********************************************************************** * X11DRV_LookupSysPaletteExact */ static int X11DRV_LookupSysPaletteExact( BYTE r, BYTE g, BYTE b ) { int i; for( i = 0; i < palette_size; i++ ) { if( COLOR_sysPal[i].peFlags & PC_SYS_USED ) /* skips gap */ if( COLOR_sysPal[i].peRed == r && COLOR_sysPal[i].peGreen == g && COLOR_sysPal[i].peBlue == b ) return i; } return -1; } /*********************************************************************** * RealizePalette (X11DRV.@) */ UINT X11DRV_RealizePalette( PHYSDEV dev, HPALETTE hpal, BOOL primary ) { X11DRV_PDEVICE *physDev = get_x11drv_dev( dev ); char flag; int index; UINT i, iRemapped = 0; int *prev_mapping, *mapping; PALETTEENTRY entries[256]; WORD num_entries; if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) return 0; if (!GetObjectW( hpal, sizeof(num_entries), &num_entries )) return 0; /* initialize palette mapping table */ prev_mapping = palette_get_mapping( hpal ); if (prev_mapping) mapping = HeapReAlloc( GetProcessHeap(), 0, prev_mapping, sizeof(int)*num_entries); else mapping = HeapAlloc( GetProcessHeap(), 0, sizeof(int)*num_entries); if(mapping == NULL) { ERR("Unable to allocate new mapping -- memory exhausted!\n"); return 0; } palette_set_mapping( hpal, mapping ); if (num_entries > 256) { FIXME( "more than 256 entries not supported\n" ); num_entries = 256; } if (!(num_entries = GetPaletteEntries( hpal, 0, num_entries, entries ))) return 0; /* reset dynamic system palette entries */ EnterCriticalSection( &palette_cs ); if( primary && X11DRV_PALETTE_firstFree != -1) X11DRV_PALETTE_FormatSystemPalette(); for (i = 0; i < num_entries; i++) { index = -1; flag = PC_SYS_USED; /* Even though the docs say that only one flag is to be set, * they are a bitmask. At least one app sets more than one at * the same time. */ if ( entries[i].peFlags & PC_EXPLICIT ) { /* palette entries are indices into system palette */ index = *(WORD*)&entries[i]; if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) ) { WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index); index = 0; } if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index]; } else { if ( entries[i].peFlags & PC_RESERVED ) { /* forbid future mappings to this entry */ flag |= PC_SYS_RESERVED; } if (! (entries[i].peFlags & PC_NOCOLLAPSE) ) { /* try to collapse identical colors */ index = X11DRV_LookupSysPaletteExact( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ); } if( index < 0 ) { if( X11DRV_PALETTE_firstFree > 0 ) { XColor color; index = X11DRV_PALETTE_firstFree; /* ought to be available */ X11DRV_PALETTE_firstFree = X11DRV_PALETTE_freeList[index]; color.pixel = (X11DRV_PALETTE_PaletteToXPixel) ? X11DRV_PALETTE_PaletteToXPixel[index] : index; color.red = entries[i].peRed << 8; color.green = entries[i].peGreen << 8; color.blue = entries[i].peBlue << 8; color.flags = DoRed | DoGreen | DoBlue; XStoreColor(gdi_display, default_colormap, &color); COLOR_sysPal[index] = entries[i]; COLOR_sysPal[index].peFlags = flag; X11DRV_PALETTE_freeList[index] = 0; if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index]; } else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) { index = X11DRV_PALETTE_LookupPixel( physDev->color_shifts, RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue )); } /* we have to map to existing entry in the system palette */ index = X11DRV_SysPaletteLookupPixel( RGB( entries[i].peRed, entries[i].peGreen, entries[i].peBlue ), TRUE ); } if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index]; } if( !prev_mapping || mapping[i] != index ) iRemapped++; mapping[i] = index; TRACE("entry %i (%x) -> pixel %i\n", i, *(COLORREF*)&entries[i], index); } LeaveCriticalSection( &palette_cs ); return iRemapped; } /*********************************************************************** * UnrealizePalette (X11DRV.@) */ BOOL X11DRV_UnrealizePalette( HPALETTE hpal ) { int *mapping = palette_get_mapping( hpal ); if (mapping) { XDeleteContext( gdi_display, (XID)hpal, palette_context ); HeapFree( GetProcessHeap(), 0, mapping ); } return TRUE; } /*********************************************************************** * GetSystemPaletteEntries (X11DRV.@) */ UINT X11DRV_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, LPPALETTEENTRY entries ) { UINT i; if (!entries) return palette_size; if (start >= palette_size) return 0; if (start + count >= palette_size) count = palette_size - start; EnterCriticalSection( &palette_cs ); for (i = 0; i < count; i++) { entries[i].peRed = COLOR_sysPal[start + i].peRed; entries[i].peGreen = COLOR_sysPal[start + i].peGreen; entries[i].peBlue = COLOR_sysPal[start + i].peBlue; entries[i].peFlags = 0; TRACE("\tidx(%02x) -> RGB(%08x)\n", start + i, *(COLORREF*)(entries + i) ); } LeaveCriticalSection( &palette_cs ); return count; } /*********************************************************************** * GetNearestColor (X11DRV.@) */ COLORREF X11DRV_GetNearestColor( PHYSDEV dev, COLORREF color ) { unsigned char spec_type = color >> 24; COLORREF nearest; if (!palette_size) return color; if (spec_type == 1 || spec_type == 2) { /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */ UINT index; PALETTEENTRY entry; HPALETTE hpal = GetCurrentObject( dev->hdc, OBJ_PAL ); if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE ); if (spec_type == 2) /* PALETTERGB */ index = GetNearestPaletteIndex( hpal, color ); else /* PALETTEINDEX */ index = LOWORD(color); if (!GetPaletteEntries( hpal, index, 1, &entry )) { WARN("RGB(%x) : idx %d is out of bounds, assuming NULL\n", color, index ); if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID; } color = RGB( entry.peRed, entry.peGreen, entry.peBlue ); } color &= 0x00ffffff; EnterCriticalSection( &palette_cs ); nearest = (0x00ffffff & *(COLORREF*)(COLOR_sysPal + X11DRV_SysPaletteLookupPixel(color, FALSE))); LeaveCriticalSection( &palette_cs ); TRACE("(%06x): returning %06x\n", color, nearest ); return nearest; } /*********************************************************************** * RealizeDefaultPalette (X11DRV.@) */ UINT X11DRV_RealizeDefaultPalette( PHYSDEV dev ) { UINT ret = 0; if (palette_size && GetObjectType(dev->hdc) != OBJ_MEMDC) { /* lookup is needed to account for SetSystemPaletteUse() stuff */ int i, index, *mapping = palette_get_mapping( GetStockObject(DEFAULT_PALETTE) ); PALETTEENTRY entries[NB_RESERVED_COLORS]; GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, entries ); EnterCriticalSection( &palette_cs ); for( i = 0; i < NB_RESERVED_COLORS; i++ ) { index = X11DRV_PALETTE_LookupSystemXPixel( RGB(entries[i].peRed, entries[i].peGreen, entries[i].peBlue) ); /* mapping is allocated in COLOR_InitPalette() */ if( index != mapping[i] ) { mapping[i]=index; ret++; } } LeaveCriticalSection( &palette_cs ); } return ret; }