4 * Copyright 1993, 1994 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
31 #define NB_HATCH_STYLES (HS_DIAGCROSS+1)
33 static const char HatchBrushes[NB_HATCH_STYLES + 1][8] =
35 { 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
36 { 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
37 { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
38 { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
39 { 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
40 { 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HS_DIAGCROSS */
41 { 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb } /* Hack for DKGRAY */
44 /* Levels of each primary for dithering */
45 #define PRIMARY_LEVELS 3
46 #define TOTAL_LEVELS (PRIMARY_LEVELS*PRIMARY_LEVELS*PRIMARY_LEVELS)
48 /* Dithering matrix size */
50 #define MATRIX_SIZE_2 (MATRIX_SIZE*MATRIX_SIZE)
52 /* Total number of possible levels for a dithered primary color */
53 #define DITHER_LEVELS (MATRIX_SIZE_2 * (PRIMARY_LEVELS-1) + 1)
55 /* Dithering matrix */
56 static const int dither_matrix[MATRIX_SIZE_2] =
58 0, 32, 8, 40, 2, 34, 10, 42,
59 48, 16, 56, 24, 50, 18, 58, 26,
60 12, 44, 4, 36, 14, 46, 6, 38,
61 60, 28, 52, 20, 62, 30, 54, 22,
62 3, 35, 11, 43, 1, 33, 9, 41,
63 51, 19, 59, 27, 49, 17, 57, 25,
64 15, 47, 7, 39, 13, 45, 5, 37,
65 63, 31, 55, 23, 61, 29, 53, 21
68 /* Mapping between (R,G,B) triples and EGA colors */
69 static const int EGAmapping[TOTAL_LEVELS] =
71 0, /* 000000 -> 000000 */
72 4, /* 00007f -> 000080 */
73 12, /* 0000ff -> 0000ff */
74 2, /* 007f00 -> 008000 */
75 6, /* 007f7f -> 008080 */
76 6, /* 007fff -> 008080 */
77 10, /* 00ff00 -> 00ff00 */
78 6, /* 00ff7f -> 008080 */
79 14, /* 00ffff -> 00ffff */
80 1, /* 7f0000 -> 800000 */
81 5, /* 7f007f -> 800080 */
82 5, /* 7f00ff -> 800080 */
83 3, /* 7f7f00 -> 808000 */
84 8, /* 7f7f7f -> 808080 */
85 7, /* 7f7fff -> c0c0c0 */
86 3, /* 7fff00 -> 808000 */
87 7, /* 7fff7f -> c0c0c0 */
88 7, /* 7fffff -> c0c0c0 */
89 9, /* ff0000 -> ff0000 */
90 5, /* ff007f -> 800080 */
91 13, /* ff00ff -> ff00ff */
92 3, /* ff7f00 -> 808000 */
93 7, /* ff7f7f -> c0c0c0 */
94 7, /* ff7fff -> c0c0c0 */
95 11, /* ffff00 -> ffff00 */
96 7, /* ffff7f -> c0c0c0 */
97 15 /* ffffff -> ffffff */
100 #define PIXEL_VALUE(r,g,b) \
101 X11DRV_PALETTE_mapEGAPixel[EGAmapping[((r)*PRIMARY_LEVELS+(g))*PRIMARY_LEVELS+(b)]]
103 /* X image for building dithered pixmap */
104 static XImage *ditherImage = NULL;
107 /***********************************************************************
110 static Pixmap BRUSH_DitherColor( COLORREF color )
112 static COLORREF prevColor = 0xffffffff;
118 ditherImage = X11DRV_DIB_CreateXImage( MATRIX_SIZE, MATRIX_SIZE, screen_depth );
119 if (!ditherImage) return 0;
123 if (color != prevColor)
125 int r = GetRValue( color ) * DITHER_LEVELS;
126 int g = GetGValue( color ) * DITHER_LEVELS;
127 int b = GetBValue( color ) * DITHER_LEVELS;
128 const int *pmatrix = dither_matrix;
130 for (y = 0; y < MATRIX_SIZE; y++)
132 for (x = 0; x < MATRIX_SIZE; x++)
134 int d = *pmatrix++ * 256;
135 int dr = ((r + d) / MATRIX_SIZE_2) / 256;
136 int dg = ((g + d) / MATRIX_SIZE_2) / 256;
137 int db = ((b + d) / MATRIX_SIZE_2) / 256;
138 XPutPixel( ditherImage, x, y, PIXEL_VALUE(dr,dg,db) );
144 pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, screen_depth );
145 XPutImage( gdi_display, pixmap, BITMAP_colorGC, ditherImage, 0, 0,
146 0, 0, MATRIX_SIZE, MATRIX_SIZE );
152 /***********************************************************************
153 * BRUSH_SelectSolidBrush
155 static void BRUSH_SelectSolidBrush( X11DRV_PDEVICE *physDev, COLORREF color )
157 if ((physDev->depth > 1) && (screen_depth <= 8) && !X11DRV_IsSolidColor( color ))
160 physDev->brush.pixmap = BRUSH_DitherColor( color );
161 physDev->brush.fillStyle = FillTiled;
162 physDev->brush.pixel = 0;
167 physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, color );
168 physDev->brush.fillStyle = FillSolid;
173 /***********************************************************************
174 * BRUSH_SelectPatternBrush
176 static BOOL BRUSH_SelectPatternBrush( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
180 BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
181 if (!bmp) return FALSE;
183 if (!(pixmap = X11DRV_get_pixmap( hbitmap ))) goto done;
186 if ((physDev->depth == 1) && (bmp->bitmap.bmBitsPixel != 1))
188 /* Special case: a color pattern on a monochrome DC */
189 physDev->brush.pixmap = XCreatePixmap( gdi_display, root_window,
190 bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 1);
191 /* FIXME: should probably convert to monochrome instead */
192 XCopyPlane( gdi_display, pixmap, physDev->brush.pixmap,
193 BITMAP_monoGC, 0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 0, 0, 1 );
197 physDev->brush.pixmap = XCreatePixmap( gdi_display, root_window,
198 bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
199 bmp->bitmap.bmBitsPixel );
200 XCopyArea( gdi_display, pixmap, physDev->brush.pixmap,
201 BITMAP_GC(bmp), 0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 0, 0 );
205 if (bmp->bitmap.bmBitsPixel > 1)
207 physDev->brush.fillStyle = FillTiled;
208 physDev->brush.pixel = 0; /* Ignored */
212 physDev->brush.fillStyle = FillOpaqueStippled;
213 physDev->brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */
217 GDI_ReleaseObj( hbitmap );
222 /***********************************************************************
223 * SelectBrush (X11DRV.@)
225 HBRUSH X11DRV_SelectBrush( X11DRV_PDEVICE *physDev, HBRUSH hbrush )
229 BITMAPINFO * bmpInfo;
231 if (!GetObjectA( hbrush, sizeof(logbrush), &logbrush )) return 0;
233 TRACE("hdc=%p hbrush=%p\n", physDev->hdc,hbrush);
235 if (physDev->brush.pixmap)
238 XFreePixmap( gdi_display, physDev->brush.pixmap );
240 physDev->brush.pixmap = 0;
242 physDev->brush.style = logbrush.lbStyle;
243 if (hbrush == GetStockObject( DC_BRUSH ))
244 logbrush.lbColor = GetDCBrushColor( physDev->hdc );
246 switch(logbrush.lbStyle)
253 TRACE("BS_SOLID\n" );
254 BRUSH_SelectSolidBrush( physDev, logbrush.lbColor );
258 TRACE("BS_HATCHED\n" );
259 physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, logbrush.lbColor );
261 physDev->brush.pixmap = XCreateBitmapFromData( gdi_display, root_window,
262 HatchBrushes[logbrush.lbHatch], 8, 8 );
264 physDev->brush.fillStyle = FillStippled;
268 TRACE("BS_PATTERN\n");
269 if (!BRUSH_SelectPatternBrush( physDev, (HBITMAP)logbrush.lbHatch )) return 0;
273 TRACE("BS_DIBPATTERN\n");
274 if ((bmpInfo = (BITMAPINFO *) GlobalLock16( (HGLOBAL16)logbrush.lbHatch )))
276 int size = X11DRV_DIB_BitmapInfoSize( bmpInfo, logbrush.lbColor );
277 hBitmap = CreateDIBitmap( physDev->hdc, &bmpInfo->bmiHeader,
278 CBM_INIT, ((char *)bmpInfo) + size,
280 (WORD)logbrush.lbColor );
281 BRUSH_SelectPatternBrush( physDev, hBitmap );
282 DeleteObject( hBitmap );
283 GlobalUnlock16( (HGLOBAL16)logbrush.lbHatch );
292 /***********************************************************************
293 * SetDCBrushColor (X11DRV.@)
295 COLORREF X11DRV_SetDCBrushColor( X11DRV_PDEVICE *physDev, COLORREF crColor )
297 if (GetCurrentObject(physDev->hdc, OBJ_BRUSH) == GetStockObject( DC_BRUSH ))
298 BRUSH_SelectSolidBrush( physDev, crColor );