| /* |
| * X11DRV OEM bitmap objects |
| * |
| * Copyright 1994, 1995 Alexandre Julliard |
| * |
| */ |
| |
| #include "config.h" |
| |
| #include "ts_xlib.h" |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "color.h" |
| #include "debugtools.h" |
| #include "gdi.h" |
| #include "options.h" |
| #include "palette.h" |
| #include "windef.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 = X11DRV_GetVisual(); |
| |
| 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 (PROFILE_GetWineIniBool( "x11drv", "PrivateColorMap", 0 )) |
| { |
| 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 << X11DRV_GetDepth())-1; |
| break; |
| |
| case TrueColor: |
| X11DRV_PALETTE_PaletteFlags |= X11DRV_PALETTE_VIRTUAL; |
| case StaticColor: { |
| int *depths,nrofdepths; |
| /* FIXME: hack to detect XFree32 XF_VGA16 ... We just have |
| * depths 1 and 4 |
| */ |
| depths=TSXListDepths(display,DefaultScreen(display),&nrofdepths); |
| if ((nrofdepths==2) && ((depths[0]==4) || depths[1]==4)) { |
| monoPlane = 1; |
| for( white = X11DRV_DevCaps.sizePalette - 1; !(white & 1); white >>= 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; |
| |
| if((COLOR_sysPal = (PALETTEENTRY*)HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY)*X11DRV_DevCaps.sizePalette)) == NULL) { |
| WARN("Can not allocate system palette\n"); |
| return FALSE; |
| } |
| |
| 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( "x11drv", "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 - X11DRV_GetDepth()); |
| 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... |
| */ |
| |
| if((pixDynMapping = (unsigned long*)HeapAlloc(GetProcessHeap(), 0, sizeof(long)*X11DRV_DevCaps.sizePalette)) == NULL) { |
| WARN("Out of memory while building system palette.\n"); |
| return FALSE; |
| } |
| 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", X11DRV_GetDepth()); |
| } |
| 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*)HeapAlloc(GetProcessHeap(),0,sizeof(PALETTEENTRY)*256); |
| if(COLOR_sysPal == NULL) { |
| ERR("Can not allocate system palette!\n"); |
| return FALSE; |
| } |
| |
| /* setup system palette entry <-> pixel mappings and fill in 20 fixed entries */ |
| |
| if (X11DRV_GetDepth() <= 8) |
| { |
| X11DRV_PALETTE_XPixelToPalette = (int*)calloc(256, sizeof(int)); |
| if(X11DRV_PALETTE_XPixelToPalette == NULL) { |
| ERR("Out of memory: XPixelToPalette!\n"); |
| return FALSE; |
| } |
| } |
| |
| /* for hicolor visuals PaletteToPixel mapping is used to skip |
| * RGB->pixel calculation in X11DRV_PALETTE_ToPhysical(). |
| */ |
| |
| X11DRV_PALETTE_PaletteToXPixel = (int*)HeapAlloc(GetProcessHeap(),0,sizeof(int)*256); |
| if(X11DRV_PALETTE_PaletteToXPixel == NULL) { |
| ERR("Out of memory: PaletteToXPixel!\n"); |
| return FALSE; |
| } |
| |
| 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 ) HeapFree(GetProcessHeap(), 0, 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 (X11DRV_GetDepth() >= 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(MulDiv(color.red, 255, X11DRV_PALETTE_Redmax), |
| MulDiv(color.green, 255, X11DRV_PALETTE_Greenmax), |
| MulDiv(color.blue, 255, X11DRV_PALETTE_Bluemax)); |
| } |
| |
| /* check if we can bypass X */ |
| |
| if ((X11DRV_GetDepth() <= 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_ReleaseObj( hPal ); |
| return 0; |
| } |
| |
| if( palPtr->mapping ) |
| { |
| int ret = palPtr->mapping[idx]; |
| GDI_ReleaseObj( hPal ); |
| return ret; |
| } |
| color = *(COLORREF*)(palPtr->logpalette.palPalEntry + idx); |
| break; |
| |
| default: |
| color &= 0xffffff; |
| /* fall through to RGB */ |
| |
| case 0: /* RGB */ |
| if( dc && (dc->w.bitsPerPixel == 1) ) |
| { |
| GDI_ReleaseObj( 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_ReleaseObj( 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 = MulDiv(red, X11DRV_PALETTE_Redmax, 255); |
| if (X11DRV_PALETTE_Greenmax != 255) |
| green = MulDiv(green, X11DRV_PALETTE_Greenmax, 255); |
| if (X11DRV_PALETTE_Bluemax != 255) |
| blue = MulDiv(blue, X11DRV_PALETTE_Bluemax, 255); |
| |
| GDI_ReleaseObj( 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_ReleaseObj( 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_ReleaseObj( 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; |
| int* mapping; |
| |
| /* reset dynamic system palette entries */ |
| |
| if( !mapOnly && X11DRV_PALETTE_firstFree != -1) |
| X11DRV_PALETTE_FormatSystemPalette(); |
| |
| /* initialize palette mapping table */ |
| |
| mapping = HeapReAlloc( GetProcessHeap(), 0, palPtr->mapping, |
| sizeof(int)*palPtr->logpalette.palNumEntries); |
| if(mapping == NULL) { |
| ERR("Can not allocate new mapping -- memory exausted!"); |
| return 0; |
| } |
| palPtr->mapping = mapping; |
| |
| 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; |
| } |
| |
