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Dither solid colours on monochrome bitmaps.

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Richard Cohen 2005-04-20 12:52:46 +00:00 committed by Alexandre Julliard
parent 8f983be0b5
commit 062c18dd24
2 changed files with 44 additions and 14 deletions
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6
dlls/gdi/gdiobj.c
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@ -50,13 +50,9 @@ static const LOGBRUSH WhiteBrush = { BS_SOLID, RGB(255,255,255), 0 };
static const LOGBRUSH BlackBrush = { BS_SOLID, RGB(0,0,0), 0 };
static const LOGBRUSH NullBrush = { BS_NULL, 0, 0 };
/* FIXME: these should perhaps be BS_HATCHED, at least for 1 bitperpixel */
static const LOGBRUSH LtGrayBrush = { BS_SOLID, RGB(192,192,192), 0 };
static const LOGBRUSH GrayBrush = { BS_SOLID, RGB(128,128,128), 0 };
/* This is BS_HATCHED, for 1 bitperpixel. This makes the spray work in pbrush */
/* See HatchBrushes in x11drv for the HS_DIAGCROSS+1 hack */
static const LOGBRUSH DkGrayBrush = { BS_HATCHED, RGB(0,0,0), (HS_DIAGCROSS+1) };
static const LOGBRUSH DkGrayBrush = { BS_SOLID, RGB(64,64,64), 0 };
static const LOGPEN WhitePen = { PS_SOLID, { 0, 0 }, RGB(255,255,255) };
static const LOGPEN BlackPen = { PS_SOLID, { 0, 0 }, RGB(0,0,0) };

52
dlls/x11drv/brush.c
View File

@ -28,9 +28,7 @@
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
#define NB_HATCH_STYLES (HS_DIAGCROSS+1)
static const char HatchBrushes[NB_HATCH_STYLES + 1][8] =
static const char HatchBrushes[][8] =
{
{ 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HS_HORIZONTAL */
{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HS_VERTICAL */
@ -38,7 +36,6 @@ static const char HatchBrushes[NB_HATCH_STYLES + 1][8] =
{ 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 */
@ -100,15 +97,16 @@ static const int EGAmapping[TOTAL_LEVELS] =
#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;
static const COLORREF BLACK = RGB(0, 0, 0);
static const COLORREF WHITE = RGB(0xff, 0xff, 0xff);
/***********************************************************************
* BRUSH_DitherColor
*/
static Pixmap BRUSH_DitherColor( COLORREF color )
{
/* X image for building dithered pixmap */
static XImage *ditherImage = NULL;
static COLORREF prevColor = 0xffffffff;
unsigned int x, y;
Pixmap pixmap;
@ -116,7 +114,11 @@ static Pixmap BRUSH_DitherColor( COLORREF color )
if (!ditherImage)
{
ditherImage = X11DRV_DIB_CreateXImage( MATRIX_SIZE, MATRIX_SIZE, screen_depth );
if (!ditherImage) return 0;
if (!ditherImage)
{
ERR("Could not create dither image\n");
return 0;
}
}
wine_tsx11_lock();
@ -143,12 +145,38 @@ static Pixmap BRUSH_DitherColor( COLORREF color )
pixmap = XCreatePixmap( gdi_display, root_window, MATRIX_SIZE, MATRIX_SIZE, screen_depth );
XPutImage( gdi_display, pixmap, BITMAP_colorGC, ditherImage, 0, 0,
0, 0, MATRIX_SIZE, MATRIX_SIZE );
0, 0, MATRIX_SIZE, MATRIX_SIZE );
wine_tsx11_unlock();
return pixmap;
}
/***********************************************************************
* BRUSH_DitherMono
*/
static Pixmap BRUSH_DitherMono( COLORREF color )
{
/* This makes the spray work in Win 3.11 pbrush.exe */
/* FIXME. Extend this basic selection of dither patterns */
static const char gray_dither[][2] = {{ 0x1, 0x0 }, /* DKGRAY */
{ 0x2, 0x1 }, /* GRAY */
{ 0x1, 0x3 }, /* LTGRAY */
};
int gray = (30 * GetRValue(color) + 59 * GetGValue(color) + 11 * GetBValue(color)) / 100;
int idx = gray * (sizeof gray_dither/sizeof gray_dither[0] + 1)/256 - 1;
Pixmap pixmap;
TRACE("color=%06lx -> gray=%x\n", color, gray);
wine_tsx11_lock();
pixmap = XCreateBitmapFromData( gdi_display, root_window,
gray_dither[idx],
2, 2 );
wine_tsx11_unlock();
return pixmap;
}
/***********************************************************************
* BRUSH_SelectSolidBrush
*/
@ -161,6 +189,12 @@ static void BRUSH_SelectSolidBrush( X11DRV_PDEVICE *physDev, COLORREF color )
physDev->brush.fillStyle = FillTiled;
physDev->brush.pixel = 0;
}
else if (physDev->depth == 1 && color != WHITE && color != BLACK)
{
physDev->brush.pixel = 0;
physDev->brush.pixmap = BRUSH_DitherMono( color );
physDev->brush.fillStyle = FillTiled;
}
else
{
/* Solid brush */