/* * X11DRV OEM bitmap objects * * Copyright 1994, 1995 Alexandre Julliard * */ #include "config.h" #ifndef X_DISPLAY_MISSING #include "ts_xlib.h" #include #include #include "color.h" #include "debugtools.h" #include "gdi.h" #include "monitor.h" #include "options.h" #include "palette.h" #include "windef.h" #include "xmalloc.h" #include "x11drv.h" 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. * * Windows palette manager is described in the * http://premium.microsoft.com/msdn/library/techart/f30/f34/f40/d4d/sa942.htm */ extern PALETTEENTRY *COLOR_sysPal; extern int COLOR_gapStart; extern int COLOR_gapEnd; extern int COLOR_gapFilled; extern int COLOR_max; extern const PALETTEENTRY COLOR_sysPalTemplate[NB_RESERVED_COLORS]; Colormap X11DRV_PALETTE_PaletteXColormap = 0; UINT16 X11DRV_PALETTE_PaletteFlags = 0; static int X11DRV_PALETTE_Redshift = 0; /* to handle abortive X11DRV_PALETTE_VIRTUAL visuals */ static int X11DRV_PALETTE_Redmax = 0; static int X11DRV_PALETTE_Greenshift = 0; static int X11DRV_PALETTE_Greenmax = 0; static int X11DRV_PALETTE_Blueshift = 0; static int X11DRV_PALETTE_Bluemax = 0; static int X11DRV_PALETTE_Graymax = 0; /* First free dynamic color cell, 0 = full palette, -1 = fixed palette */ static int X11DRV_PALETTE_firstFree = 0; static unsigned char X11DRV_PALETTE_freeList[256]; /**********************************************************************/ /* 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 /* 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(void); static BOOL X11DRV_PALETTE_BuildSharedMap(void); static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, int *shift, int *max); static void X11DRV_PALETTE_FillDefaultColors(void); static void X11DRV_PALETTE_FormatSystemPalette(void); static BOOL X11DRV_PALETTE_CheckSysColor(COLORREF c); static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col); /*********************************************************************** * COLOR_Init * * Initialize color management. */ BOOL X11DRV_PALETTE_Init(void) { int mask, white, black; int monoPlane; Visual *visual = DefaultVisual( display, DefaultScreen(display) ); TRACE("initializing palette manager...\n"); white = WhitePixelOfScreen( X11DRV_GetXScreen() ); black = BlackPixelOfScreen( X11DRV_GetXScreen() ); monoPlane = 1; for( mask = 1; !((white & mask)^(black & mask)); mask <<= 1 ) monoPlane++; X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0; X11DRV_DevCaps.sizePalette = visual->map_entries; switch(visual->class) { case DirectColor: X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL; case GrayScale: case PseudoColor: if (Options.usePrivateMap) { XSetWindowAttributes win_attr; X11DRV_PALETTE_PaletteXColormap = TSXCreateColormap( display, X11DRV_GetXRootWindow(), visual, AllocAll ); if (X11DRV_PALETTE_PaletteXColormap) { X11DRV_PALETTE_PaletteFlags |= (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_WHITESET); monoPlane = 1; for( white = X11DRV_DevCaps.sizePalette - 1; !(white & 1); white >>= 1 ) monoPlane++; if( X11DRV_GetXRootWindow() != DefaultRootWindow(display) ) { win_attr.colormap = X11DRV_PALETTE_PaletteXColormap; TSXChangeWindowAttributes( display, X11DRV_GetXRootWindow(), CWColormap, &win_attr ); } break; } } X11DRV_PALETTE_PaletteXColormap = DefaultColormapOfScreen( X11DRV_GetXScreen() ); break; case StaticGray: X11DRV_PALETTE_PaletteXColormap = DefaultColormapOfScreen( X11DRV_GetXScreen() ); X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED; X11DRV_PALETTE_Graymax = (1<>= 1 ) monoPlane++; X11DRV_PALETTE_PaletteFlags = (white & mask) ? X11DRV_PALETTE_WHITESET : 0; X11DRV_PALETTE_PaletteXColormap = DefaultColormapOfScreen( X11DRV_GetXScreen() ); TSXFree(depths); break; } TSXFree(depths); X11DRV_PALETTE_PaletteXColormap = DefaultColormapOfScreen( X11DRV_GetXScreen() ); X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_FIXED; X11DRV_PALETTE_ComputeShifts(visual->red_mask, &X11DRV_PALETTE_Redshift, &X11DRV_PALETTE_Redmax); X11DRV_PALETTE_ComputeShifts(visual->green_mask, &X11DRV_PALETTE_Greenshift, &X11DRV_PALETTE_Greenmax); X11DRV_PALETTE_ComputeShifts(visual->blue_mask, &X11DRV_PALETTE_Blueshift, &X11DRV_PALETTE_Bluemax); break; } } TRACE(" visual class %i (%i)\n", visual->class, monoPlane); memset(X11DRV_PALETTE_freeList, 0, 256*sizeof(unsigned char)); if (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_PRIVATE) X11DRV_PALETTE_BuildPrivateMap(); else X11DRV_PALETTE_BuildSharedMap(); /* Build free list */ if( X11DRV_PALETTE_firstFree != -1 ) X11DRV_PALETTE_FormatSystemPalette(); X11DRV_PALETTE_FillDefaultColors(); if( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) X11DRV_DevCaps.sizePalette = 0; else { X11DRV_DevCaps.rasterCaps |= RC_PALETTE; X11DRV_DevCaps.sizePalette = visual->map_entries; } return TRUE; } /*********************************************************************** * X11DRV_PALETTE_Cleanup * * Free external colors we grabbed in the FillDefaultPalette() */ void X11DRV_PALETTE_Cleanup(void) { if( COLOR_gapFilled ) TSXFreeColors(display, X11DRV_PALETTE_PaletteXColormap, (unsigned long*)(X11DRV_PALETTE_PaletteToXPixel + COLOR_gapStart), COLOR_gapFilled, 0); } /*********************************************************************** * X11DRV_PALETTE_ComputeShifts * * Calculate conversion parameters for direct mapped visuals */ static void X11DRV_PALETTE_ComputeShifts(unsigned long maskbits, int *shift, int *max) { int i; if (maskbits==0) { *shift=0; *max=0; return; } for(i=0;!(maskbits&1);i++) maskbits >>= 1; *shift = i; *max = maskbits; } /*********************************************************************** * X11DRV_PALETTE_BuildPrivateMap * * Allocate colorcells and initialize mapping tables. */ static BOOL X11DRV_PALETTE_BuildPrivateMap(void) { /* Private colormap - identity mapping */ XColor color; int i; COLOR_sysPal = (PALETTEENTRY*)xmalloc(sizeof(PALETTEENTRY)*X11DRV_DevCaps.sizePalette); TRACE("Building private map - %i palette entries\n", X11DRV_DevCaps.sizePalette); /* Allocate system palette colors */ for( i=0; i < X11DRV_DevCaps.sizePalette; i++ ) { if( i < NB_RESERVED_COLORS/2 ) { color.red = COLOR_sysPalTemplate[i].peRed * 65535 / 255; color.green = COLOR_sysPalTemplate[i].peGreen * 65535 / 255; color.blue = COLOR_sysPalTemplate[i].peBlue * 65535 / 255; COLOR_sysPal[i] = COLOR_sysPalTemplate[i]; } else if( i >= X11DRV_DevCaps.sizePalette - NB_RESERVED_COLORS/2 ) { int j = NB_RESERVED_COLORS + i - X11DRV_DevCaps.sizePalette; color.red = COLOR_sysPalTemplate[j].peRed * 65535 / 255; color.green = COLOR_sysPalTemplate[j].peGreen * 65535 / 255; color.blue = COLOR_sysPalTemplate[j].peBlue * 65535 / 255; COLOR_sysPal[i] = COLOR_sysPalTemplate[j]; } color.flags = DoRed | DoGreen | DoBlue; color.pixel = i; TSXStoreColor(display, X11DRV_PALETTE_PaletteXColormap, &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 >= X11DRV_DevCaps.sizePalette - 8 ) X11DRV_PALETTE_mapEGAPixel[i - (X11DRV_DevCaps.sizePalette - 16)] = color.pixel; } X11DRV_PALETTE_XPixelToPalette = X11DRV_PALETTE_PaletteToXPixel = NULL; COLOR_gapStart = 256; COLOR_gapEnd = -1; X11DRV_PALETTE_firstFree = (X11DRV_DevCaps.sizePalette > NB_RESERVED_COLORS)?NB_RESERVED_COLORS/2 : -1; return FALSE; } /*********************************************************************** * X11DRV_PALETTE_BuildSharedMap * * Allocate colorcells and initialize mapping tables. */ static BOOL X11DRV_PALETTE_BuildSharedMap(void) { 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, max = 256, bp = 0, wp = 1; int step = 1; /* read "AllocSystemColors" from wine.conf */ COLOR_max = PROFILE_GetWineIniInt( "options", "AllocSystemColors", 256); if (COLOR_max > 256) COLOR_max = 256; else if (COLOR_max < 20) COLOR_max = 20; TRACE("%d colors configured.\n", COLOR_max); TRACE("Building shared map - %i palette entries\n", X11DRV_DevCaps.sizePalette); /* Be nice and allocate system colors as read-only */ for( i = 0; i < NB_RESERVED_COLORS; i++ ) { color.red = COLOR_sysPalTemplate[i].peRed * 65535 / 255; color.green = COLOR_sysPalTemplate[i].peGreen * 65535 / 255; color.blue = COLOR_sysPalTemplate[i].peBlue * 65535 / 255; color.flags = DoRed | DoGreen | DoBlue; if (!TSXAllocColor( display, X11DRV_PALETTE_PaletteXColormap, &color )) { XColor best, c; if( !warn++ ) { WARN("Not enough colors for the full system palette.\n"); bp = BlackPixel(display, DefaultScreen(display)); wp = WhitePixel(display, DefaultScreen(display)); max = (0xffffffff)>>(32 - MONITOR_GetDepth(&MONITOR_PrimaryMonitor)); if( max > 256 ) { step = max/256; max = 256; } } /* reinit color (XAllocColor() may change it) * and map to the best shared colorcell */ color.red = COLOR_sysPalTemplate[i].peRed * 65535 / 255; color.green = COLOR_sysPalTemplate[i].peGreen * 65535 / 255; color.blue = COLOR_sysPalTemplate[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 ) { TSXQueryColor(display, X11DRV_PALETTE_PaletteXColormap, &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( TSXAllocColor(display, X11DRV_PALETTE_PaletteXColormap, &best) ) color.pixel = best.pixel; else color.pixel = (i < NB_RESERVED_COLORS/2)? bp : wp; } sysPixel[i] = color.pixel; TRACE("syscolor(%lx) -> pixel %i\n", *(COLORREF*)(COLOR_sysPalTemplate+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 = X11DRV_DevCaps.sizePalette, c_val; TRACE("Dynamic colormap... \n"); /* comment this out if you want to debug palette init */ TSXGrabServer(display); /* let's become the first client that actually follows * X guidelines and does binary search... */ pixDynMapping = (unsigned long*)xmalloc(sizeof(long)*X11DRV_DevCaps.sizePalette); while( c_max - c_min > 0 ) { c_val = (c_max + c_min)/2 + (c_max + c_min)%2; if( !TSXAllocColorCells(display, X11DRV_PALETTE_PaletteXColormap, False, plane_masks, 0, pixDynMapping, c_val) ) c_max = c_val - 1; else { TSXFreeColors(display, X11DRV_PALETTE_PaletteXColormap, pixDynMapping, c_val, 0); c_min = c_val; } } if( c_min > COLOR_max - NB_RESERVED_COLORS) c_min = COLOR_max - NB_RESERVED_COLORS; c_min = (c_min/2) + (c_min/2); /* need even set for split palette */ if( c_min > 0 ) if( !TSXAllocColorCells(display, X11DRV_PALETTE_PaletteXColormap, False, plane_masks, 0, pixDynMapping, c_min) ) { WARN("Inexplicable failure during colorcell allocation.\n"); c_min = 0; } X11DRV_DevCaps.sizePalette = c_min + NB_RESERVED_COLORS; TSXUngrabServer(display); TRACE("adjusted size %i colorcells\n", X11DRV_DevCaps.sizePalette); } 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 */ X11DRV_DevCaps.sizePalette = 256; TRACE("Virtual colorspace - screendepth %i\n", MONITOR_GetDepth(&MONITOR_PrimaryMonitor)); } else X11DRV_DevCaps.sizePalette = 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", X11DRV_DevCaps.sizePalette); /* 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( X11DRV_DevCaps.sizePalette >= 256 ) { COLOR_gapStart = 256; COLOR_gapEnd = -1; } else { COLOR_gapStart = X11DRV_DevCaps.sizePalette/2; COLOR_gapEnd = 255 - X11DRV_DevCaps.sizePalette/2; } X11DRV_PALETTE_firstFree = ( X11DRV_DevCaps.sizePalette > NB_RESERVED_COLORS && (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL || !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED)) ) ? NB_RESERVED_COLORS/2 : -1; COLOR_sysPal = (PALETTEENTRY*)xmalloc(sizeof(PALETTEENTRY)*256); /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */ if( MONITOR_GetDepth(&MONITOR_PrimaryMonitor) <= 8 ) { X11DRV_PALETTE_XPixelToPalette = (int*)xmalloc(sizeof(int)*256); memset( X11DRV_PALETTE_XPixelToPalette, 0, 256*sizeof(int) ); } /* for hicolor visuals PaletteToPixel mapping is used to skip * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical(). */ X11DRV_PALETTE_PaletteToXPixel = (int*)xmalloc(sizeof(int)*256); for( i = j = 0; i < 256; i++ ) { if( i >= COLOR_gapStart && i <= COLOR_gapEnd ) { X11DRV_PALETTE_PaletteToXPixel[i] = 0; COLOR_sysPal[i].peFlags = 0; /* mark as unused */ continue; } if( i < NB_RESERVED_COLORS/2 ) { X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[i]; COLOR_sysPal[i] = COLOR_sysPalTemplate[i]; } else if( i >= 256 - NB_RESERVED_COLORS/2 ) { X11DRV_PALETTE_PaletteToXPixel[i] = sysPixel[(i + NB_RESERVED_COLORS) - 256]; COLOR_sysPal[i] = COLOR_sysPalTemplate[(i + NB_RESERVED_COLORS) - 256]; } 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; } if( pixDynMapping ) free(pixDynMapping); return TRUE; } /*********************************************************************** * Colormap Initialization */ static void X11DRV_PALETTE_FillDefaultColors(void) { /* 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 (X11DRV_DevCaps.sizePalette <= NB_RESERVED_COLORS) return; while (i*i*i < (X11DRV_DevCaps.sizePalette - NB_RESERVED_COLORS)) i++; no_r = no_g = no_b = --i; if ((no_r * (no_g+1) * no_b) < (X11DRV_DevCaps.sizePalette - NB_RESERVED_COLORS)) no_g++; if ((no_r * no_g * (no_b+1)) < (X11DRV_DevCaps.sizePalette - 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 ) { if (X11DRV_PALETTE_Redmax != 255) no_r = (red * X11DRV_PALETTE_Redmax) / 255; if (X11DRV_PALETTE_Greenmax != 255) no_g = (green * X11DRV_PALETTE_Greenmax) / 255; if (X11DRV_PALETTE_Bluemax != 255) no_b = (blue * X11DRV_PALETTE_Bluemax) / 255; X11DRV_PALETTE_PaletteToXPixel[idx] = (no_r << X11DRV_PALETTE_Redshift) | (no_g << X11DRV_PALETTE_Greenshift) | (no_b << X11DRV_PALETTE_Blueshift); } 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; TSXStoreColor(display, X11DRV_PALETTE_PaletteXColormap, &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 = COLOR_max - (256 - (COLOR_gapEnd - COLOR_gapStart)); for ( i = 0, idx = COLOR_gapStart; i < 256 && idx <= COLOR_gapEnd; i++ ) if( X11DRV_PALETTE_XPixelToPalette[i] == 0 ) { xc.pixel = i; TSXQueryColor(display, X11DRV_PALETTE_PaletteXColormap, &xc); r = xc.red>>8; g = xc.green>>8; b = xc.blue>>8; if( xc.pixel < 256 && X11DRV_PALETTE_CheckSysColor(RGB(r, g, b)) && TSXAllocColor(display, X11DRV_PALETTE_PaletteXColormap, &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_PALETTE_ToLogical * * Return RGB color for given X pixel. */ COLORREF X11DRV_PALETTE_ToLogical(int pixel) { XColor color; #if 0 /* truecolor visual */ if (MONITOR_GetDepth(&MONITOR_PrimaryMonitor) >= 24) return pixel; #endif /* check for hicolor visuals first */ if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED && !X11DRV_PALETTE_Graymax ) { color.red = (pixel >> X11DRV_PALETTE_Redshift) & X11DRV_PALETTE_Redmax; color.green = (pixel >> X11DRV_PALETTE_Greenshift) & X11DRV_PALETTE_Greenmax; color.blue = (pixel >> X11DRV_PALETTE_Blueshift) & X11DRV_PALETTE_Bluemax; return RGB((color.red * 255)/X11DRV_PALETTE_Redmax, (color.green * 255)/X11DRV_PALETTE_Greenmax, (color.blue * 255)/X11DRV_PALETTE_Bluemax); } /* check if we can bypass X */ if ((MONITOR_GetDepth(&MONITOR_PrimaryMonitor) <= 8) && (pixel < 256) && !(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_VIRTUAL | X11DRV_PALETTE_FIXED)) ) return ( *(COLORREF*)(COLOR_sysPal + ((X11DRV_PALETTE_XPixelToPalette)?X11DRV_PALETTE_XPixelToPalette[pixel]:pixel)) ) & 0x00ffffff; color.pixel = pixel; TSXQueryColor(display, X11DRV_PALETTE_PaletteXColormap, &color); return RGB(color.red >> 8, color.green >> 8, color.blue >> 8); } /*********************************************************************** * X11DRV_PALETTE_ToPhysical * * Return the physical color closest to 'color'. */ int X11DRV_PALETTE_ToPhysical( DC *dc, COLORREF color ) { WORD index = 0; HPALETTE16 hPal = (dc)? dc->w.hPalette: STOCK_DEFAULT_PALETTE; unsigned char spec_type = color >> 24; PALETTEOBJ* palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC ); /* palPtr can be NULL when DC is being destroyed */ if( !palPtr ) return 0; 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; unsigned idx = 0; switch(spec_type) { case 1: /* PALETTEINDEX */ if( (idx = color & 0xffff) >= palPtr->logpalette.palNumEntries) { WARN("RGB(%lx) : idx %d is out of bounds, assuming black\n", color, idx); GDI_HEAP_UNLOCK( hPal ); return 0; } if( palPtr->mapping ) { GDI_HEAP_UNLOCK( hPal ); return palPtr->mapping[idx]; } color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx); break; default: color &= 0xffffff; /* fall through to RGB */ case 0: /* RGB */ if( dc && (dc->w.bitsPerPixel == 1) ) { GDI_HEAP_UNLOCK( hPal ); 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 */ GDI_HEAP_UNLOCK( hPal ); return ( (red * 30 + green * 69 + blue * 11) * X11DRV_PALETTE_Graymax) / 25500; } else { /* scale each individually and construct the TrueColor pixel value */ if (X11DRV_PALETTE_Redmax != 255) red = (red * X11DRV_PALETTE_Redmax) / 255; if (X11DRV_PALETTE_Greenmax != 255) green = (green * X11DRV_PALETTE_Greenmax) / 255; if (X11DRV_PALETTE_Bluemax != 255) blue = (blue * X11DRV_PALETTE_Bluemax) / 255; GDI_HEAP_UNLOCK( hPal ); return (red << X11DRV_PALETTE_Redshift) | (green << X11DRV_PALETTE_Greenshift) | (blue << X11DRV_PALETTE_Blueshift); } } else { if( !palPtr->mapping ) WARN("Palette %04x is not realized\n", dc->w.hPalette); switch(spec_type) /* we have to peruse DC and system palette */ { default: color &= 0xffffff; /* fall through to RGB */ case 0: /* RGB */ if( dc && (dc->w.bitsPerPixel == 1) ) { GDI_HEAP_UNLOCK( hPal ); return (((color >> 16) & 0xff) + ((color >> 8) & 0xff) + (color & 0xff) > 255*3/2) ? 1 : 0; } index = COLOR_PaletteLookupPixel( COLOR_sysPal, 256, X11DRV_PALETTE_PaletteToXPixel, color, FALSE); /* TRACE(palette,"RGB(%lx) -> pixel %i\n", color, index); */ break; case 1: /* PALETTEINDEX */ index = color & 0xffff; if( index >= palPtr->logpalette.palNumEntries ) WARN("RGB(%lx) : index %i is out of bounds\n", color, index); else if( palPtr->mapping ) index = palPtr->mapping[index]; /* TRACE(palette,"PALETTEINDEX(%04x) -> pixel %i\n", (WORD)color, index); */ break; case 2: /* PALETTERGB */ index = COLOR_PaletteLookupPixel( palPtr->logpalette.palPalEntry, palPtr->logpalette.palNumEntries, palPtr->mapping, color, FALSE); /* TRACE(palette,"PALETTERGB(%lx) -> pixel %i\n", color, index); */ break; } } GDI_HEAP_UNLOCK( hPal ); return index; } /*********************************************************************** * X11DRV_PALETTE_LookupSystemXPixel */ static int X11DRV_PALETTE_LookupSystemXPixel(COLORREF col) { int i, best = 0, diff = 0x7fffffff; int size = X11DRV_DevCaps.sizePalette; 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(COLORREF c) { int i; for( i = 0; i < NB_RESERVED_COLORS; i++ ) if( c == (*(COLORREF*)(COLOR_sysPalTemplate + i) & 0x00ffffff) ) return 0; return 1; } /*********************************************************************** * X11DRV_PALETTE_SetMapping * * Set the color-mapping table for selected palette. * Return number of entries which mapping has changed. */ int X11DRV_PALETTE_SetMapping( PALETTEOBJ* palPtr, UINT uStart, UINT uNum, BOOL mapOnly ) { char flag; int prevMapping = (palPtr->mapping) ? 1 : 0; int index, iRemapped = 0; /* reset dynamic system palette entries */ if( !mapOnly && X11DRV_PALETTE_firstFree != -1) X11DRV_PALETTE_FormatSystemPalette(); /* initialize palette mapping table */ palPtr->mapping = (int*)xrealloc(palPtr->mapping, sizeof(int)* palPtr->logpalette.palNumEntries); for( uNum += uStart; uStart < uNum; uStart++ ) { index = -1; flag = PC_SYS_USED; switch( palPtr->logpalette.palPalEntry[uStart].peFlags & 0x07 ) { case PC_EXPLICIT: /* palette entries are indices into system palette */ index = *(WORD*)(palPtr->logpalette.palPalEntry + uStart); if( index > 255 || (index >= COLOR_gapStart && index <= COLOR_gapEnd) ) { WARN("PC_EXPLICIT: idx %d out of system palette, assuming black.\n", index); index = 0; } break; case PC_RESERVED: /* forbid future mappings to this entry */ flag |= PC_SYS_RESERVED; /* fall through */ default: /* try to collapse identical colors */ index = COLOR_PaletteLookupExactIndex(COLOR_sysPal, 256, *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart)); /* fall through */ case PC_NOCOLLAPSE: if( index < 0 ) { if( X11DRV_PALETTE_firstFree > 0 && !(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_FIXED) ) { 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 = palPtr->logpalette.palPalEntry[uStart].peRed << 8; color.green = palPtr->logpalette.palPalEntry[uStart].peGreen << 8; color.blue = palPtr->logpalette.palPalEntry[uStart].peBlue << 8; color.flags = DoRed | DoGreen | DoBlue; TSXStoreColor(display, X11DRV_PALETTE_PaletteXColormap, &color); COLOR_sysPal[index] = palPtr->logpalette.palPalEntry[uStart]; COLOR_sysPal[index].peFlags = flag; X11DRV_PALETTE_freeList[index] = 0; if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index]; break; } else if ( X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL ) { index = X11DRV_PALETTE_ToPhysical( NULL, 0x00ffffff & *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart)); break; } /* we have to map to existing entry in the system palette */ index = COLOR_PaletteLookupPixel(COLOR_sysPal, 256, NULL, *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), TRUE); } palPtr->logpalette.palPalEntry[uStart].peFlags |= PC_SYS_USED; if( X11DRV_PALETTE_PaletteToXPixel ) index = X11DRV_PALETTE_PaletteToXPixel[index]; break; } if( !prevMapping || palPtr->mapping[uStart] != index ) iRemapped++; palPtr->mapping[uStart] = index; TRACE("entry %i (%lx) -> pixel %i\n", uStart, *(COLORREF*)(palPtr->logpalette.palPalEntry + uStart), index); } return iRemapped; } /*********************************************************************** * X11DRV_PALETTE_UpdateMapping * * Update the color-mapping table for selected palette. * Return number of entries which mapping has changed. */ int X11DRV_PALETTE_UpdateMapping(PALETTEOBJ *palPtr) { int i, index, realized = 0; if (!X11DRV_DevCaps.sizePalette) return 0; for( i = 0; i < 20; i++ ) { index = X11DRV_PALETTE_LookupSystemXPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i)); /* mapping is allocated in COLOR_InitPalette() */ if( index != palPtr->mapping[i] ) { palPtr->mapping[i]=index; realized++; } } return realized; } /************************************************************************** * X11DRV_PALETTE_IsDark */ BOOL X11DRV_PALETTE_IsDark(int pixel) { COLORREF col = X11DRV_PALETTE_ToLogical(pixel); return (GetRValue(col) + GetGValue(col) + GetBValue(col)) <= 0x180; } #endif /* !defined(X_DISPLAY_MISSING) */