4 * Copyright 1993, 1994 Alexandre Julliard
16 #include "debugtools.h"
19 DEFAULT_DEBUG_CHANNEL(gdi
);
21 static const char HatchBrushes
[NB_HATCH_STYLES
+ 1][8] =
23 { 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
24 { 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
25 { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
26 { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
27 { 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
28 { 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HS_DIAGCROSS */
29 { 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb } /* Hack for DKGRAY */
32 /* Levels of each primary for dithering */
33 #define PRIMARY_LEVELS 3
34 #define TOTAL_LEVELS (PRIMARY_LEVELS*PRIMARY_LEVELS*PRIMARY_LEVELS)
36 /* Dithering matrix size */
38 #define MATRIX_SIZE_2 (MATRIX_SIZE*MATRIX_SIZE)
40 /* Total number of possible levels for a dithered primary color */
41 #define DITHER_LEVELS (MATRIX_SIZE_2 * (PRIMARY_LEVELS-1) + 1)
43 /* Dithering matrix */
44 static const int dither_matrix
[MATRIX_SIZE_2
] =
46 0, 32, 8, 40, 2, 34, 10, 42,
47 48, 16, 56, 24, 50, 18, 58, 26,
48 12, 44, 4, 36, 14, 46, 6, 38,
49 60, 28, 52, 20, 62, 30, 54, 22,
50 3, 35, 11, 43, 1, 33, 9, 41,
51 51, 19, 59, 27, 49, 17, 57, 25,
52 15, 47, 7, 39, 13, 45, 5, 37,
53 63, 31, 55, 23, 61, 29, 53, 21
56 /* Mapping between (R,G,B) triples and EGA colors */
57 static const int EGAmapping
[TOTAL_LEVELS
] =
59 0, /* 000000 -> 000000 */
60 4, /* 00007f -> 000080 */
61 12, /* 0000ff -> 0000ff */
62 2, /* 007f00 -> 008000 */
63 6, /* 007f7f -> 008080 */
64 6, /* 007fff -> 008080 */
65 10, /* 00ff00 -> 00ff00 */
66 6, /* 00ff7f -> 008080 */
67 14, /* 00ffff -> 00ffff */
68 1, /* 7f0000 -> 800000 */
69 5, /* 7f007f -> 800080 */
70 5, /* 7f00ff -> 800080 */
71 3, /* 7f7f00 -> 808000 */
72 8, /* 7f7f7f -> 808080 */
73 7, /* 7f7fff -> c0c0c0 */
74 3, /* 7fff00 -> 808000 */
75 7, /* 7fff7f -> c0c0c0 */
76 7, /* 7fffff -> c0c0c0 */
77 9, /* ff0000 -> ff0000 */
78 5, /* ff007f -> 800080 */
79 13, /* ff00ff -> ff00ff */
80 3, /* ff7f00 -> 808000 */
81 7, /* ff7f7f -> c0c0c0 */
82 7, /* ff7fff -> c0c0c0 */
83 11, /* ffff00 -> ffff00 */
84 7, /* ffff7f -> c0c0c0 */
85 15 /* ffffff -> ffffff */
88 #define PIXEL_VALUE(r,g,b) \
89 X11DRV_PALETTE_mapEGAPixel[EGAmapping[((r)*PRIMARY_LEVELS+(g))*PRIMARY_LEVELS+(b)]]
91 /* X image for building dithered pixmap */
92 static XImage
*ditherImage
= NULL
;
95 /***********************************************************************
98 * Create the X image used for dithering.
100 BOOL
X11DRV_BRUSH_Init(void)
102 XCREATEIMAGE( ditherImage
, MATRIX_SIZE
, MATRIX_SIZE
, X11DRV_GetDepth() );
103 return (ditherImage
!= NULL
);
107 /***********************************************************************
110 static Pixmap
BRUSH_DitherColor( DC
*dc
, COLORREF color
)
112 static COLORREF prevColor
= 0xffffffff;
116 EnterCriticalSection( &X11DRV_CritSection
);
117 if (color
!= prevColor
)
119 int r
= GetRValue( color
) * DITHER_LEVELS
;
120 int g
= GetGValue( color
) * DITHER_LEVELS
;
121 int b
= GetBValue( color
) * DITHER_LEVELS
;
122 const int *pmatrix
= dither_matrix
;
124 for (y
= 0; y
< MATRIX_SIZE
; y
++)
126 for (x
= 0; x
< MATRIX_SIZE
; x
++)
128 int d
= *pmatrix
++ * 256;
129 int dr
= ((r
+ d
) / MATRIX_SIZE_2
) / 256;
130 int dg
= ((g
+ d
) / MATRIX_SIZE_2
) / 256;
131 int db
= ((b
+ d
) / MATRIX_SIZE_2
) / 256;
132 XPutPixel( ditherImage
, x
, y
, PIXEL_VALUE(dr
,dg
,db
) );
138 pixmap
= XCreatePixmap( display
, X11DRV_GetXRootWindow(),
139 MATRIX_SIZE
, MATRIX_SIZE
, X11DRV_GetDepth() );
140 XPutImage( display
, pixmap
, BITMAP_colorGC
, ditherImage
, 0, 0,
141 0, 0, MATRIX_SIZE
, MATRIX_SIZE
);
142 LeaveCriticalSection( &X11DRV_CritSection
);
147 /***********************************************************************
148 * BRUSH_SelectSolidBrush
150 static void BRUSH_SelectSolidBrush( DC
*dc
, COLORREF color
)
152 X11DRV_PDEVICE
*physDev
= (X11DRV_PDEVICE
*)dc
->physDev
;
154 if ((dc
->bitsPerPixel
> 1) && (X11DRV_GetDepth() <= 8) && !COLOR_IsSolid( color
))
157 physDev
->brush
.pixmap
= BRUSH_DitherColor( dc
, color
);
158 physDev
->brush
.fillStyle
= FillTiled
;
159 physDev
->brush
.pixel
= 0;
164 physDev
->brush
.pixel
= X11DRV_PALETTE_ToPhysical( dc
, color
);
165 physDev
->brush
.fillStyle
= FillSolid
;
170 /***********************************************************************
171 * BRUSH_SelectPatternBrush
173 static BOOL
BRUSH_SelectPatternBrush( DC
* dc
, HBITMAP hbitmap
)
176 X11DRV_PDEVICE
*physDev
= (X11DRV_PDEVICE
*)dc
->physDev
;
177 BITMAPOBJ
* bmp
= (BITMAPOBJ
*) GDI_GetObjPtr( hbitmap
, BITMAP_MAGIC
);
178 if (!bmp
) return FALSE
;
181 if(!X11DRV_CreateBitmap(hbitmap
))
184 if(bmp
->funcs
!= dc
->funcs
) {
185 WARN("Trying to select non-X11 DDB into an X11 dc\n");
189 if ((dc
->bitsPerPixel
== 1) && (bmp
->bitmap
.bmBitsPixel
!= 1))
191 /* Special case: a color pattern on a monochrome DC */
192 physDev
->brush
.pixmap
= TSXCreatePixmap( display
, X11DRV_GetXRootWindow(), 8, 8, 1);
193 /* FIXME: should probably convert to monochrome instead */
194 TSXCopyPlane( display
, (Pixmap
)bmp
->physBitmap
, physDev
->brush
.pixmap
,
195 BITMAP_monoGC
, 0, 0, 8, 8, 0, 0, 1 );
199 physDev
->brush
.pixmap
= TSXCreatePixmap( display
, X11DRV_GetXRootWindow(),
200 8, 8, bmp
->bitmap
.bmBitsPixel
);
201 TSXCopyArea( display
, (Pixmap
)bmp
->physBitmap
, physDev
->brush
.pixmap
,
202 BITMAP_GC(bmp
), 0, 0, 8, 8, 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
);
224 /***********************************************************************
227 HBRUSH
X11DRV_BRUSH_SelectObject( DC
* dc
, HBRUSH hbrush
, BRUSHOBJ
* brush
)
230 BITMAPINFO
* bmpInfo
;
231 HBRUSH16 prevHandle
= dc
->hBrush
;
232 X11DRV_PDEVICE
*physDev
= (X11DRV_PDEVICE
*)dc
->physDev
;
234 TRACE("hdc=%04x hbrush=%04x\n",
239 if (physDev
->brush
.pixmap
)
241 TSXFreePixmap( display
, physDev
->brush
.pixmap
);
242 physDev
->brush
.pixmap
= 0;
244 physDev
->brush
.style
= brush
->logbrush
.lbStyle
;
246 switch(brush
->logbrush
.lbStyle
)
253 TRACE("BS_SOLID\n" );
254 BRUSH_SelectSolidBrush( dc
, brush
->logbrush
.lbColor
);
258 TRACE("BS_HATCHED\n" );
259 physDev
->brush
.pixel
= X11DRV_PALETTE_ToPhysical( dc
, brush
->logbrush
.lbColor
);
260 physDev
->brush
.pixmap
= TSXCreateBitmapFromData( display
, X11DRV_GetXRootWindow(),
261 HatchBrushes
[brush
->logbrush
.lbHatch
], 8, 8 );
262 physDev
->brush
.fillStyle
= FillStippled
;
266 TRACE("BS_PATTERN\n");
267 BRUSH_SelectPatternBrush( dc
, (HBRUSH16
)brush
->logbrush
.lbHatch
);
271 TRACE("BS_DIBPATTERN\n");
272 if ((bmpInfo
= (BITMAPINFO
*) GlobalLock16( (HGLOBAL16
)brush
->logbrush
.lbHatch
)))
274 int size
= DIB_BitmapInfoSize( bmpInfo
, brush
->logbrush
.lbColor
);
275 hBitmap
= CreateDIBitmap( dc
->hSelf
, &bmpInfo
->bmiHeader
,
276 CBM_INIT
, ((char *)bmpInfo
) + size
,
278 (WORD
)brush
->logbrush
.lbColor
);
279 BRUSH_SelectPatternBrush( dc
, hBitmap
);
280 DeleteObject16( hBitmap
);
281 GlobalUnlock16( (HGLOBAL16
)brush
->logbrush
.lbHatch
);