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284 lines
8.5 KiB
C
284 lines
8.5 KiB
C
/*
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* X11DRV brush objects
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*
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* Copyright 1993, 1994 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "ts_xlib.h"
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#include <stdlib.h>
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#include "bitmap.h"
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#include "x11drv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(gdi);
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#define NB_HATCH_STYLES (HS_DIAGCROSS+1)
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static const char HatchBrushes[NB_HATCH_STYLES + 1][8] =
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{
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{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
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{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
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{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
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{ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
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{ 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
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{ 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HS_DIAGCROSS */
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{ 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb } /* Hack for DKGRAY */
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};
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/* Levels of each primary for dithering */
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#define PRIMARY_LEVELS 3
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#define TOTAL_LEVELS (PRIMARY_LEVELS*PRIMARY_LEVELS*PRIMARY_LEVELS)
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/* Dithering matrix size */
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#define MATRIX_SIZE 8
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#define MATRIX_SIZE_2 (MATRIX_SIZE*MATRIX_SIZE)
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/* Total number of possible levels for a dithered primary color */
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#define DITHER_LEVELS (MATRIX_SIZE_2 * (PRIMARY_LEVELS-1) + 1)
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/* Dithering matrix */
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static const int dither_matrix[MATRIX_SIZE_2] =
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{
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0, 32, 8, 40, 2, 34, 10, 42,
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48, 16, 56, 24, 50, 18, 58, 26,
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12, 44, 4, 36, 14, 46, 6, 38,
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60, 28, 52, 20, 62, 30, 54, 22,
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3, 35, 11, 43, 1, 33, 9, 41,
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51, 19, 59, 27, 49, 17, 57, 25,
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15, 47, 7, 39, 13, 45, 5, 37,
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63, 31, 55, 23, 61, 29, 53, 21
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};
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/* Mapping between (R,G,B) triples and EGA colors */
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static const int EGAmapping[TOTAL_LEVELS] =
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{
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0, /* 000000 -> 000000 */
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4, /* 00007f -> 000080 */
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12, /* 0000ff -> 0000ff */
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2, /* 007f00 -> 008000 */
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6, /* 007f7f -> 008080 */
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6, /* 007fff -> 008080 */
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10, /* 00ff00 -> 00ff00 */
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6, /* 00ff7f -> 008080 */
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14, /* 00ffff -> 00ffff */
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1, /* 7f0000 -> 800000 */
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5, /* 7f007f -> 800080 */
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5, /* 7f00ff -> 800080 */
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3, /* 7f7f00 -> 808000 */
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8, /* 7f7f7f -> 808080 */
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7, /* 7f7fff -> c0c0c0 */
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3, /* 7fff00 -> 808000 */
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7, /* 7fff7f -> c0c0c0 */
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7, /* 7fffff -> c0c0c0 */
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9, /* ff0000 -> ff0000 */
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5, /* ff007f -> 800080 */
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13, /* ff00ff -> ff00ff */
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3, /* ff7f00 -> 808000 */
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7, /* ff7f7f -> c0c0c0 */
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7, /* ff7fff -> c0c0c0 */
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11, /* ffff00 -> ffff00 */
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7, /* ffff7f -> c0c0c0 */
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15 /* ffffff -> ffffff */
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};
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#define PIXEL_VALUE(r,g,b) \
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X11DRV_PALETTE_mapEGAPixel[EGAmapping[((r)*PRIMARY_LEVELS+(g))*PRIMARY_LEVELS+(b)]]
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/* X image for building dithered pixmap */
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static XImage *ditherImage = NULL;
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/***********************************************************************
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* BRUSH_DitherColor
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*/
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static Pixmap BRUSH_DitherColor( DC *dc, COLORREF color )
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{
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static COLORREF prevColor = 0xffffffff;
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unsigned int x, y;
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Pixmap pixmap;
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if (!ditherImage)
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{
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ditherImage = X11DRV_DIB_CreateXImage( MATRIX_SIZE, MATRIX_SIZE, screen_depth );
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if (!ditherImage) return 0;
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}
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wine_tsx11_lock();
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if (color != prevColor)
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{
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int r = GetRValue( color ) * DITHER_LEVELS;
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int g = GetGValue( color ) * DITHER_LEVELS;
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int b = GetBValue( color ) * DITHER_LEVELS;
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const int *pmatrix = dither_matrix;
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for (y = 0; y < MATRIX_SIZE; y++)
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{
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for (x = 0; x < MATRIX_SIZE; x++)
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{
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int d = *pmatrix++ * 256;
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int dr = ((r + d) / MATRIX_SIZE_2) / 256;
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int dg = ((g + d) / MATRIX_SIZE_2) / 256;
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int db = ((b + d) / MATRIX_SIZE_2) / 256;
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XPutPixel( ditherImage, x, y, PIXEL_VALUE(dr,dg,db) );
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}
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}
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prevColor = color;
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}
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pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, screen_depth );
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XPutImage( gdi_display, pixmap, BITMAP_colorGC, ditherImage, 0, 0,
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0, 0, MATRIX_SIZE, MATRIX_SIZE );
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wine_tsx11_unlock();
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return pixmap;
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}
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/***********************************************************************
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* BRUSH_SelectSolidBrush
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*/
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static void BRUSH_SelectSolidBrush( X11DRV_PDEVICE *physDev, COLORREF color )
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{
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DC *dc = physDev->dc;
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if ((dc->bitsPerPixel > 1) && (screen_depth <= 8) && !X11DRV_IsSolidColor( color ))
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{
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/* Dithered brush */
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physDev->brush.pixmap = BRUSH_DitherColor( dc, color );
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physDev->brush.fillStyle = FillTiled;
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physDev->brush.pixel = 0;
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}
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else
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{
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/* Solid brush */
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physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, color );
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physDev->brush.fillStyle = FillSolid;
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}
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}
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/***********************************************************************
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* BRUSH_SelectPatternBrush
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*/
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static BOOL BRUSH_SelectPatternBrush( X11DRV_PDEVICE *physDev, HBITMAP hbitmap )
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{
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BOOL ret = FALSE;
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DC *dc = physDev->dc;
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BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
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if (!bmp) return FALSE;
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if(!bmp->physBitmap) goto done;
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if ((dc->bitsPerPixel == 1) && (bmp->bitmap.bmBitsPixel != 1))
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{
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/* Special case: a color pattern on a monochrome DC */
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physDev->brush.pixmap = TSXCreatePixmap( gdi_display, root_window, 8, 8, 1);
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/* FIXME: should probably convert to monochrome instead */
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TSXCopyPlane( gdi_display, (Pixmap)bmp->physBitmap, physDev->brush.pixmap,
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BITMAP_monoGC, 0, 0, 8, 8, 0, 0, 1 );
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}
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else
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{
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physDev->brush.pixmap = TSXCreatePixmap( gdi_display, root_window,
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8, 8, bmp->bitmap.bmBitsPixel );
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TSXCopyArea( gdi_display, (Pixmap)bmp->physBitmap, physDev->brush.pixmap,
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BITMAP_GC(bmp), 0, 0, 8, 8, 0, 0 );
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}
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if (bmp->bitmap.bmBitsPixel > 1)
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{
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physDev->brush.fillStyle = FillTiled;
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physDev->brush.pixel = 0; /* Ignored */
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}
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else
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{
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physDev->brush.fillStyle = FillOpaqueStippled;
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physDev->brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */
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}
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ret = TRUE;
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done:
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GDI_ReleaseObj( hbitmap );
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return ret;
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}
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/***********************************************************************
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* SelectBrush (X11DRV.@)
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*/
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HBRUSH X11DRV_SelectBrush( X11DRV_PDEVICE *physDev, HBRUSH hbrush )
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{
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LOGBRUSH logbrush;
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HBITMAP16 hBitmap;
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BITMAPINFO * bmpInfo;
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if (!GetObjectA( hbrush, sizeof(logbrush), &logbrush )) return 0;
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TRACE("hdc=%04x hbrush=%04x\n", physDev->hdc,hbrush);
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if (physDev->brush.pixmap)
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{
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TSXFreePixmap( gdi_display, physDev->brush.pixmap );
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physDev->brush.pixmap = 0;
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}
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physDev->brush.style = logbrush.lbStyle;
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switch(logbrush.lbStyle)
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{
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case BS_NULL:
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TRACE("BS_NULL\n" );
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break;
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case BS_SOLID:
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TRACE("BS_SOLID\n" );
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BRUSH_SelectSolidBrush( physDev, logbrush.lbColor );
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break;
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case BS_HATCHED:
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TRACE("BS_HATCHED\n" );
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physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( physDev, logbrush.lbColor );
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physDev->brush.pixmap = TSXCreateBitmapFromData( gdi_display, root_window,
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HatchBrushes[logbrush.lbHatch], 8, 8 );
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physDev->brush.fillStyle = FillStippled;
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break;
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case BS_PATTERN:
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TRACE("BS_PATTERN\n");
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if (!BRUSH_SelectPatternBrush( physDev, (HBITMAP)logbrush.lbHatch )) return 0;
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break;
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case BS_DIBPATTERN:
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TRACE("BS_DIBPATTERN\n");
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if ((bmpInfo = (BITMAPINFO *) GlobalLock16( (HGLOBAL16)logbrush.lbHatch )))
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{
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int size = DIB_BitmapInfoSize( bmpInfo, logbrush.lbColor );
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hBitmap = CreateDIBitmap( physDev->hdc, &bmpInfo->bmiHeader,
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CBM_INIT, ((char *)bmpInfo) + size,
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bmpInfo,
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(WORD)logbrush.lbColor );
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BRUSH_SelectPatternBrush( physDev, hBitmap );
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DeleteObject( hBitmap );
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GlobalUnlock16( (HGLOBAL16)logbrush.lbHatch );
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}
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break;
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}
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return hbrush;
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}
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