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[wine/multimedia.git] / dlls / winex11.drv / brush.c
blob23fcce5495a5fa585a3c7c54d979d0dce5f1e920
1 /*
2 * X11DRV brush objects
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "config.h"
23 #include <stdlib.h>
25 #include "wine/winbase16.h"
26 #include "x11drv.h"
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
31 static const char HatchBrushes[][8] =
33 { 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
34 { 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
35 { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
36 { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
37 { 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
38 { 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HS_DIAGCROSS */
41 /* Levels of each primary for dithering */
42 #define PRIMARY_LEVELS 3
43 #define TOTAL_LEVELS (PRIMARY_LEVELS*PRIMARY_LEVELS*PRIMARY_LEVELS)
45 /* Dithering matrix size */
46 #define MATRIX_SIZE 8
47 #define MATRIX_SIZE_2 (MATRIX_SIZE*MATRIX_SIZE)
49 /* Total number of possible levels for a dithered primary color */
50 #define DITHER_LEVELS (MATRIX_SIZE_2 * (PRIMARY_LEVELS-1) + 1)
52 /* Dithering matrix */
53 static const int dither_matrix[MATRIX_SIZE_2] =
55 0, 32, 8, 40, 2, 34, 10, 42,
56 48, 16, 56, 24, 50, 18, 58, 26,
57 12, 44, 4, 36, 14, 46, 6, 38,
58 60, 28, 52, 20, 62, 30, 54, 22,
59 3, 35, 11, 43, 1, 33, 9, 41,
60 51, 19, 59, 27, 49, 17, 57, 25,
61 15, 47, 7, 39, 13, 45, 5, 37,
62 63, 31, 55, 23, 61, 29, 53, 21
65 /* Mapping between (R,G,B) triples and EGA colors */
66 static const int EGAmapping[TOTAL_LEVELS] =
68 0, /* 000000 -> 000000 */
69 4, /* 00007f -> 000080 */
70 12, /* 0000ff -> 0000ff */
71 2, /* 007f00 -> 008000 */
72 6, /* 007f7f -> 008080 */
73 6, /* 007fff -> 008080 */
74 10, /* 00ff00 -> 00ff00 */
75 6, /* 00ff7f -> 008080 */
76 14, /* 00ffff -> 00ffff */
77 1, /* 7f0000 -> 800000 */
78 5, /* 7f007f -> 800080 */
79 5, /* 7f00ff -> 800080 */
80 3, /* 7f7f00 -> 808000 */
81 8, /* 7f7f7f -> 808080 */
82 7, /* 7f7fff -> c0c0c0 */
83 3, /* 7fff00 -> 808000 */
84 7, /* 7fff7f -> c0c0c0 */
85 7, /* 7fffff -> c0c0c0 */
86 9, /* ff0000 -> ff0000 */
87 5, /* ff007f -> 800080 */
88 13, /* ff00ff -> ff00ff */
89 3, /* ff7f00 -> 808000 */
90 7, /* ff7f7f -> c0c0c0 */
91 7, /* ff7fff -> c0c0c0 */
92 11, /* ffff00 -> ffff00 */
93 7, /* ffff7f -> c0c0c0 */
94 15 /* ffffff -> ffffff */
97 #define PIXEL_VALUE(r,g,b) \
98 X11DRV_PALETTE_mapEGAPixel[EGAmapping[((r)*PRIMARY_LEVELS+(g))*PRIMARY_LEVELS+(b)]]
100 static const COLORREF BLACK = RGB(0, 0, 0);
101 static const COLORREF WHITE = RGB(0xff, 0xff, 0xff);
103 /***********************************************************************
104 * BRUSH_DitherColor
106 static Pixmap BRUSH_DitherColor( COLORREF color, int depth)
108 /* X image for building dithered pixmap */
109 static XImage *ditherImage = NULL;
110 static COLORREF prevColor = 0xffffffff;
111 unsigned int x, y;
112 Pixmap pixmap;
113 GC gc;
115 wine_tsx11_lock();
116 if (!ditherImage)
118 ditherImage = XCreateImage( gdi_display, visual, depth, ZPixmap, 0,
119 NULL, MATRIX_SIZE, MATRIX_SIZE, 32, 0 );
120 if (!ditherImage)
122 wine_tsx11_unlock();
123 ERR("Could not create dither image\n");
124 return 0;
126 ditherImage->data = HeapAlloc( GetProcessHeap(), 0,
127 ditherImage->height * ditherImage->bytes_per_line );
130 if (color != prevColor)
132 int r = GetRValue( color ) * DITHER_LEVELS;
133 int g = GetGValue( color ) * DITHER_LEVELS;
134 int b = GetBValue( color ) * DITHER_LEVELS;
135 const int *pmatrix = dither_matrix;
137 for (y = 0; y < MATRIX_SIZE; y++)
139 for (x = 0; x < MATRIX_SIZE; x++)
141 int d = *pmatrix++ * 256;
142 int dr = ((r + d) / MATRIX_SIZE_2) / 256;
143 int dg = ((g + d) / MATRIX_SIZE_2) / 256;
144 int db = ((b + d) / MATRIX_SIZE_2) / 256;
145 XPutPixel( ditherImage, x, y, PIXEL_VALUE(dr,dg,db) );
148 prevColor = color;
151 pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, depth );
152 gc = XCreateGC( gdi_display, pixmap, 0, NULL );
153 XPutImage( gdi_display, pixmap, gc, ditherImage, 0, 0, 0, 0, MATRIX_SIZE, MATRIX_SIZE );
154 XFreeGC( gdi_display, gc );
155 wine_tsx11_unlock();
157 return pixmap;
161 /***********************************************************************
162 * BRUSH_DitherMono
164 static Pixmap BRUSH_DitherMono( COLORREF color )
166 /* This makes the spray work in Win 3.11 pbrush.exe */
167 /* FIXME. Extend this basic selection of dither patterns */
168 static const char gray_dither[][2] = {{ 0x1, 0x0 }, /* DKGRAY */
169 { 0x2, 0x1 }, /* GRAY */
170 { 0x1, 0x3 }, /* LTGRAY */
172 int gray = (30 * GetRValue(color) + 59 * GetGValue(color) + 11 * GetBValue(color)) / 100;
173 int idx = gray * (sizeof gray_dither/sizeof gray_dither[0] + 1)/256 - 1;
174 Pixmap pixmap;
176 TRACE("color=%06x -> gray=%x\n", color, gray);
178 wine_tsx11_lock();
179 pixmap = XCreateBitmapFromData( gdi_display, root_window,
180 gray_dither[idx],
181 2, 2 );
182 wine_tsx11_unlock();
183 return pixmap;
186 /***********************************************************************
187 * BRUSH_SelectSolidBrush
189 static void BRUSH_SelectSolidBrush( X11DRV_PDEVICE *physDev, COLORREF color )
191 COLORREF colorRGB = X11DRV_PALETTE_GetColor( physDev, color );
192 if ((physDev->depth > 1) && (screen_depth <= 8) && !X11DRV_IsSolidColor( color ))
194 /* Dithered brush */
195 physDev->brush.pixmap = BRUSH_DitherColor( colorRGB, physDev->depth );
196 physDev->brush.fillStyle = FillTiled;
197 physDev->brush.pixel = 0;
199 else if (physDev->depth == 1 && colorRGB != WHITE && colorRGB != BLACK)
201 physDev->brush.pixel = 0;
202 physDev->brush.pixmap = BRUSH_DitherMono( colorRGB );
203 physDev->brush.fillStyle = FillTiled;
205 else
207 /* Solid brush */
208 physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, color );
209 physDev->brush.fillStyle = FillSolid;
214 static BOOL select_pattern_brush( X11DRV_PDEVICE *physdev, const struct brush_pattern *pattern )
216 XVisualInfo vis;
217 Pixmap pixmap;
218 const BITMAPINFO *info = pattern->info;
220 memset( &vis, 0, sizeof(vis) );
221 vis.visual = visual;
222 vis.visualid = visual->visualid;
224 if (physdev->depth > 1 && info->bmiHeader.biBitCount > 1)
226 vis.depth = screen_depth;
227 vis.red_mask = visual->red_mask;
228 vis.green_mask = visual->green_mask;
229 vis.blue_mask = visual->blue_mask;
231 else vis.depth = 1;
233 pixmap = create_pixmap_from_image( physdev->dev.hdc, &vis, info, &pattern->bits, pattern->usage );
234 if (!pixmap) return FALSE;
236 wine_tsx11_lock();
237 if (physdev->brush.pixmap) XFreePixmap( gdi_display, physdev->brush.pixmap );
238 physdev->brush.pixmap = pixmap;
240 if (vis.depth == 1)
242 physdev->brush.fillStyle = FillOpaqueStippled;
243 physdev->brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */
245 else
247 physdev->brush.fillStyle = FillTiled;
248 physdev->brush.pixel = 0; /* Ignored */
250 wine_tsx11_unlock();
251 return TRUE;
254 /***********************************************************************
255 * SelectBrush (X11DRV.@)
257 HBRUSH X11DRV_SelectBrush( PHYSDEV dev, HBRUSH hbrush, const struct brush_pattern *pattern )
259 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
260 LOGBRUSH logbrush;
262 if (pattern) /* pattern brush */
264 if (!select_pattern_brush( physDev, pattern )) return 0;
265 TRACE("BS_PATTERN\n");
266 physDev->brush.style = BS_PATTERN;
267 return hbrush;
270 if (!GetObjectA( hbrush, sizeof(logbrush), &logbrush )) return 0;
272 TRACE("hdc=%p hbrush=%p\n", dev->hdc, hbrush);
274 if (physDev->brush.pixmap)
276 wine_tsx11_lock();
277 XFreePixmap( gdi_display, physDev->brush.pixmap );
278 wine_tsx11_unlock();
279 physDev->brush.pixmap = 0;
281 physDev->brush.style = logbrush.lbStyle;
282 if (hbrush == GetStockObject( DC_BRUSH ))
283 logbrush.lbColor = GetDCBrushColor( dev->hdc );
285 switch(logbrush.lbStyle)
287 case BS_NULL:
288 TRACE("BS_NULL\n" );
289 break;
291 case BS_SOLID:
292 TRACE("BS_SOLID\n" );
293 BRUSH_SelectSolidBrush( physDev, logbrush.lbColor );
294 break;
296 case BS_HATCHED:
297 TRACE("BS_HATCHED\n" );
298 physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, logbrush.lbColor );
299 wine_tsx11_lock();
300 physDev->brush.pixmap = XCreateBitmapFromData( gdi_display, root_window,
301 HatchBrushes[logbrush.lbHatch], 8, 8 );
302 wine_tsx11_unlock();
303 physDev->brush.fillStyle = FillStippled;
304 break;
306 return hbrush;
310 /***********************************************************************
311 * SetDCBrushColor (X11DRV.@)
313 COLORREF X11DRV_SetDCBrushColor( PHYSDEV dev, COLORREF crColor )
315 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
317 if (GetCurrentObject(dev->hdc, OBJ_BRUSH) == GetStockObject( DC_BRUSH ))
318 BRUSH_SelectSolidBrush( physDev, crColor );
320 return crColor;