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Sweden-Number/graphics/x11drv/brush.c

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/*
* X11DRV brush objects
*
* Copyright 1993, 1994 Alexandre Julliard
*/
#include "config.h"
#include "ts_xlib.h"
#include <stdlib.h>
#include "brush.h"
#include "bitmap.h"
#include "color.h"
#include "x11drv.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(gdi);
static const char HatchBrushes[NB_HATCH_STYLES + 1][8] =
{
{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HS_FDIAGONAL */
{ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HS_BDIAGONAL */
{ 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HS_CROSS */
{ 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HS_DIAGCROSS */
{ 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb } /* Hack for DKGRAY */
};
/* Levels of each primary for dithering */
#define PRIMARY_LEVELS 3
#define TOTAL_LEVELS (PRIMARY_LEVELS*PRIMARY_LEVELS*PRIMARY_LEVELS)
/* Dithering matrix size */
#define MATRIX_SIZE 8
#define MATRIX_SIZE_2 (MATRIX_SIZE*MATRIX_SIZE)
/* Total number of possible levels for a dithered primary color */
#define DITHER_LEVELS (MATRIX_SIZE_2 * (PRIMARY_LEVELS-1) + 1)
/* Dithering matrix */
static const int dither_matrix[MATRIX_SIZE_2] =
{
0, 32, 8, 40, 2, 34, 10, 42,
48, 16, 56, 24, 50, 18, 58, 26,
12, 44, 4, 36, 14, 46, 6, 38,
60, 28, 52, 20, 62, 30, 54, 22,
3, 35, 11, 43, 1, 33, 9, 41,
51, 19, 59, 27, 49, 17, 57, 25,
15, 47, 7, 39, 13, 45, 5, 37,
63, 31, 55, 23, 61, 29, 53, 21
};
/* Mapping between (R,G,B) triples and EGA colors */
static const int EGAmapping[TOTAL_LEVELS] =
{
0, /* 000000 -> 000000 */
4, /* 00007f -> 000080 */
12, /* 0000ff -> 0000ff */
2, /* 007f00 -> 008000 */
6, /* 007f7f -> 008080 */
6, /* 007fff -> 008080 */
10, /* 00ff00 -> 00ff00 */
6, /* 00ff7f -> 008080 */
14, /* 00ffff -> 00ffff */
1, /* 7f0000 -> 800000 */
5, /* 7f007f -> 800080 */
5, /* 7f00ff -> 800080 */
3, /* 7f7f00 -> 808000 */
8, /* 7f7f7f -> 808080 */
7, /* 7f7fff -> c0c0c0 */
3, /* 7fff00 -> 808000 */
7, /* 7fff7f -> c0c0c0 */
7, /* 7fffff -> c0c0c0 */
9, /* ff0000 -> ff0000 */
5, /* ff007f -> 800080 */
13, /* ff00ff -> ff00ff */
3, /* ff7f00 -> 808000 */
7, /* ff7f7f -> c0c0c0 */
7, /* ff7fff -> c0c0c0 */
11, /* ffff00 -> ffff00 */
7, /* ffff7f -> c0c0c0 */
15 /* ffffff -> ffffff */
};
#define PIXEL_VALUE(r,g,b) \
X11DRV_PALETTE_mapEGAPixel[EGAmapping[((r)*PRIMARY_LEVELS+(g))*PRIMARY_LEVELS+(b)]]
/* X image for building dithered pixmap */
static XImage *ditherImage = NULL;
/***********************************************************************
* BRUSH_Init
*
* Create the X image used for dithering.
*/
BOOL X11DRV_BRUSH_Init(void)
{
XCREATEIMAGE( ditherImage, MATRIX_SIZE, MATRIX_SIZE, X11DRV_GetDepth() );
return (ditherImage != NULL);
}
/***********************************************************************
* BRUSH_DitherColor
*/
static Pixmap BRUSH_DitherColor( DC *dc, COLORREF color )
{
static COLORREF prevColor = 0xffffffff;
unsigned int x, y;
Pixmap pixmap;
EnterCriticalSection( &X11DRV_CritSection );
if (color != prevColor)
{
int r = GetRValue( color ) * DITHER_LEVELS;
int g = GetGValue( color ) * DITHER_LEVELS;
int b = GetBValue( color ) * DITHER_LEVELS;
const int *pmatrix = dither_matrix;
for (y = 0; y < MATRIX_SIZE; y++)
{
for (x = 0; x < MATRIX_SIZE; x++)
{
int d = *pmatrix++ * 256;
int dr = ((r + d) / MATRIX_SIZE_2) / 256;
int dg = ((g + d) / MATRIX_SIZE_2) / 256;
int db = ((b + d) / MATRIX_SIZE_2) / 256;
XPutPixel( ditherImage, x, y, PIXEL_VALUE(dr,dg,db) );
}
}
prevColor = color;
}
pixmap = XCreatePixmap( display, X11DRV_GetXRootWindow(),
MATRIX_SIZE, MATRIX_SIZE, X11DRV_GetDepth() );
XPutImage( display, pixmap, BITMAP_colorGC, ditherImage, 0, 0,
0, 0, MATRIX_SIZE, MATRIX_SIZE );
LeaveCriticalSection( &X11DRV_CritSection );
return pixmap;
}
/***********************************************************************
* BRUSH_SelectSolidBrush
*/
static void BRUSH_SelectSolidBrush( DC *dc, COLORREF color )
{
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
if ((dc->bitsPerPixel > 1) && (X11DRV_GetDepth() <= 8) && !COLOR_IsSolid( color ))
{
/* Dithered brush */
physDev->brush.pixmap = BRUSH_DitherColor( dc, color );
physDev->brush.fillStyle = FillTiled;
physDev->brush.pixel = 0;
}
else
{
/* Solid brush */
physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( dc, color );
physDev->brush.fillStyle = FillSolid;
}
}
/***********************************************************************
* BRUSH_SelectPatternBrush
*/
static BOOL BRUSH_SelectPatternBrush( DC * dc, HBITMAP hbitmap )
{
BOOL ret = FALSE;
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
if (!bmp) return FALSE;
if(!bmp->physBitmap)
if(!X11DRV_CreateBitmap(hbitmap))
goto done;
if(bmp->funcs != dc->funcs) {
WARN("Trying to select non-X11 DDB into an X11 dc\n");
goto done;
}
if ((dc->bitsPerPixel == 1) && (bmp->bitmap.bmBitsPixel != 1))
{
/* Special case: a color pattern on a monochrome DC */
physDev->brush.pixmap = TSXCreatePixmap( display, X11DRV_GetXRootWindow(), 8, 8, 1);
/* FIXME: should probably convert to monochrome instead */
TSXCopyPlane( display, (Pixmap)bmp->physBitmap, physDev->brush.pixmap,
BITMAP_monoGC, 0, 0, 8, 8, 0, 0, 1 );
}
else
{
physDev->brush.pixmap = TSXCreatePixmap( display, X11DRV_GetXRootWindow(),
8, 8, bmp->bitmap.bmBitsPixel );
TSXCopyArea( display, (Pixmap)bmp->physBitmap, physDev->brush.pixmap,
BITMAP_GC(bmp), 0, 0, 8, 8, 0, 0 );
}
if (bmp->bitmap.bmBitsPixel > 1)
{
physDev->brush.fillStyle = FillTiled;
physDev->brush.pixel = 0; /* Ignored */
}
else
{
physDev->brush.fillStyle = FillOpaqueStippled;
physDev->brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */
}
ret = TRUE;
done:
GDI_ReleaseObj( hbitmap );
return ret;
}
/***********************************************************************
* BRUSH_SelectObject
*/
HBRUSH X11DRV_BRUSH_SelectObject( DC * dc, HBRUSH hbrush, BRUSHOBJ * brush )
{
HBITMAP16 hBitmap;
BITMAPINFO * bmpInfo;
HBRUSH16 prevHandle = dc->hBrush;
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
TRACE("hdc=%04x hbrush=%04x\n",
dc->hSelf,hbrush);
dc->hBrush = hbrush;
if (physDev->brush.pixmap)
{
TSXFreePixmap( display, physDev->brush.pixmap );
physDev->brush.pixmap = 0;
}
physDev->brush.style = brush->logbrush.lbStyle;
switch(brush->logbrush.lbStyle)
{
case BS_NULL:
TRACE("BS_NULL\n" );
break;
case BS_SOLID:
TRACE("BS_SOLID\n" );
BRUSH_SelectSolidBrush( dc, brush->logbrush.lbColor );
break;
case BS_HATCHED:
TRACE("BS_HATCHED\n" );
physDev->brush.pixel = X11DRV_PALETTE_ToPhysical( dc, brush->logbrush.lbColor );
physDev->brush.pixmap = TSXCreateBitmapFromData( display, X11DRV_GetXRootWindow(),
HatchBrushes[brush->logbrush.lbHatch], 8, 8 );
physDev->brush.fillStyle = FillStippled;
break;
case BS_PATTERN:
TRACE("BS_PATTERN\n");
BRUSH_SelectPatternBrush( dc, (HBRUSH16)brush->logbrush.lbHatch );
break;
case BS_DIBPATTERN:
TRACE("BS_DIBPATTERN\n");
if ((bmpInfo = (BITMAPINFO *) GlobalLock16( (HGLOBAL16)brush->logbrush.lbHatch )))
{
int size = DIB_BitmapInfoSize( bmpInfo, brush->logbrush.lbColor );
hBitmap = CreateDIBitmap( dc->hSelf, &bmpInfo->bmiHeader,
CBM_INIT, ((char *)bmpInfo) + size,
bmpInfo,
(WORD)brush->logbrush.lbColor );
BRUSH_SelectPatternBrush( dc, hBitmap );
DeleteObject16( hBitmap );
GlobalUnlock16( (HGLOBAL16)brush->logbrush.lbHatch );
}
break;
}
return prevHandle;
}
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