/* * GDI brush objects * * Copyright 1993, 1994 Alexandre Julliard */ #include #include "brush.h" #include "bitmap.h" #include "metafile.h" #include "color.h" #include "stddebug.h" #include "debug.h" #include "xmalloc.h" #define NB_HATCH_STYLES 6 static const char HatchBrushes[NB_HATCH_STYLES][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 */ }; /* 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) \ COLOR_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 BRUSH_Init(void) { XCREATEIMAGE( ditherImage, MATRIX_SIZE, MATRIX_SIZE, screenDepth ); return (ditherImage != NULL); } /*********************************************************************** * BRUSH_DitherColor */ Pixmap BRUSH_DitherColor( DC *dc, COLORREF color ) { static COLORREF prevColor = 0xffffffff; unsigned int x, y; Pixmap pixmap; 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, rootWindow, MATRIX_SIZE, MATRIX_SIZE, screenDepth ); XPutImage( display, pixmap, BITMAP_colorGC, ditherImage, 0, 0, 0, 0, MATRIX_SIZE, MATRIX_SIZE ); return pixmap; } /*********************************************************************** * CreateBrushIndirect (GDI.50) */ HBRUSH CreateBrushIndirect( const LOGBRUSH * brush ) { BRUSHOBJ * brushPtr; HBRUSH hbrush = GDI_AllocObject( sizeof(BRUSHOBJ), BRUSH_MAGIC ); if (!hbrush) return 0; brushPtr = (BRUSHOBJ *) GDI_HEAP_LIN_ADDR( hbrush ); memcpy( &brushPtr->logbrush, brush, sizeof(LOGBRUSH) ); return hbrush; } /*********************************************************************** * CreateHatchBrush (GDI.58) */ HBRUSH CreateHatchBrush( INT style, COLORREF color ) { LOGBRUSH logbrush = { BS_HATCHED, color, style }; dprintf_gdi(stddeb, "CreateHatchBrush: %d %06lx\n", style, color ); if ((style < 0) || (style >= NB_HATCH_STYLES)) return 0; return CreateBrushIndirect( &logbrush ); } /*********************************************************************** * CreatePatternBrush (GDI.60) */ HBRUSH CreatePatternBrush( HBITMAP hbitmap ) { LOGBRUSH logbrush = { BS_PATTERN, 0, 0 }; BITMAPOBJ *bmp, *newbmp; dprintf_gdi(stddeb, "CreatePatternBrush: %04x\n", hbitmap ); /* Make a copy of the bitmap */ if (!(bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) return 0; logbrush.lbHatch = (INT)CreateBitmapIndirect( &bmp->bitmap ); newbmp = (BITMAPOBJ *) GDI_GetObjPtr( (HANDLE)logbrush.lbHatch, BITMAP_MAGIC ); if (!newbmp) return 0; XCopyArea( display, bmp->pixmap, newbmp->pixmap, BITMAP_GC(bmp), 0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight, 0, 0 ); return CreateBrushIndirect( &logbrush ); } /*********************************************************************** * CreateDIBPatternBrush (GDI.445) */ HBRUSH CreateDIBPatternBrush( HGLOBAL hbitmap, UINT coloruse ) { LOGBRUSH logbrush = { BS_DIBPATTERN, coloruse, 0 }; BITMAPINFO *info, *newInfo; int size; dprintf_gdi(stddeb, "CreateDIBPatternBrush: %04x\n", hbitmap ); /* Make a copy of the bitmap */ if (!(info = (BITMAPINFO *) GlobalLock( hbitmap ))) return 0; size = info->bmiHeader.biSizeImage; if (!size) size = (info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) / 32 * 8 * info->bmiHeader.biHeight; size += DIB_BitmapInfoSize( info, coloruse ); if (!(logbrush.lbHatch = (INT)GlobalAlloc( GMEM_MOVEABLE, size ))) { GlobalUnlock( hbitmap ); return 0; } newInfo = (BITMAPINFO *) GlobalLock( (HANDLE)logbrush.lbHatch ); memcpy( newInfo, info, size ); GlobalUnlock( (HANDLE)logbrush.lbHatch ); GlobalUnlock( hbitmap ); return CreateBrushIndirect( &logbrush ); } /*********************************************************************** * CreateSolidBrush (GDI.66) */ HBRUSH CreateSolidBrush( COLORREF color ) { LOGBRUSH logbrush = { BS_SOLID, color, 0 }; dprintf_gdi(stddeb, "CreateSolidBrush: %06lx\n", color ); return CreateBrushIndirect( &logbrush ); } /*********************************************************************** * SetBrushOrg (GDI.148) */ DWORD SetBrushOrg( HDC hdc, short x, short y ) { DWORD retval; DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); if (!dc) return FALSE; retval = dc->w.brushOrgX | (dc->w.brushOrgY << 16); dc->w.brushOrgX = x; dc->w.brushOrgY = y; return retval; } /*********************************************************************** * GetSysColorBrush (USER.281) */ HBRUSH GetSysColorBrush(WORD x) { return GetStockObject(GRAY_BRUSH); } /*********************************************************************** * BRUSH_DeleteObject */ BOOL BRUSH_DeleteObject( HBRUSH hbrush, BRUSHOBJ * brush ) { switch(brush->logbrush.lbStyle) { case BS_PATTERN: DeleteObject( (HANDLE)brush->logbrush.lbHatch ); break; case BS_DIBPATTERN: GlobalFree( (HANDLE)brush->logbrush.lbHatch ); break; } return GDI_FreeObject( hbrush ); } /*********************************************************************** * BRUSH_GetObject */ int BRUSH_GetObject( BRUSHOBJ * brush, int count, LPSTR buffer ) { if (count > sizeof(LOGBRUSH)) count = sizeof(LOGBRUSH); memcpy( buffer, &brush->logbrush, count ); return count; } /*********************************************************************** * BRUSH_SelectSolidBrush */ static void BRUSH_SelectSolidBrush( DC *dc, COLORREF color ) { if ((dc->w.bitsPerPixel > 1) && (screenDepth <= 8) && !COLOR_IsSolid( color )) { /* Dithered brush */ dc->u.x.brush.pixmap = BRUSH_DitherColor( dc, color ); dc->u.x.brush.fillStyle = FillTiled; dc->u.x.brush.pixel = 0; } else { /* Solid brush */ dc->u.x.brush.pixel = COLOR_ToPhysical( dc, color ); dc->u.x.brush.fillStyle = FillSolid; } } /*********************************************************************** * BRUSH_SelectPatternBrush */ static BOOL BRUSH_SelectPatternBrush( DC * dc, HBITMAP hbitmap ) { BITMAPOBJ * bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ); if (!bmp) return FALSE; dc->u.x.brush.pixmap = XCreatePixmap( display, rootWindow, 8, 8, bmp->bitmap.bmBitsPixel ); XCopyArea( display, bmp->pixmap, dc->u.x.brush.pixmap, BITMAP_GC(bmp), 0, 0, 8, 8, 0, 0 ); if (bmp->bitmap.bmBitsPixel > 1) { dc->u.x.brush.fillStyle = FillTiled; dc->u.x.brush.pixel = 0; /* Ignored */ } else { dc->u.x.brush.fillStyle = FillOpaqueStippled; dc->u.x.brush.pixel = -1; /* Special case (see DC_SetupGCForBrush) */ } return TRUE; } /*********************************************************************** * BRUSH_SelectObject */ HBRUSH BRUSH_SelectObject( HDC hdc, DC * dc, HBRUSH hbrush, BRUSHOBJ * brush ) { HBITMAP hBitmap; BITMAPINFO * bmpInfo; HBRUSH prevHandle = dc->w.hBrush; dprintf_gdi(stddeb, "Brush_SelectObject: hdc=%04x hbrush=%04x\n", hdc,hbrush); if (dc->header.wMagic == METAFILE_DC_MAGIC) { switch (brush->logbrush.lbStyle) { case BS_SOLID: case BS_HATCHED: case BS_HOLLOW: if (!MF_CreateBrushIndirect(dc, hbrush, &(brush->logbrush))) return (HBRUSH)0; break; case BS_PATTERN: case BS_DIBPATTERN: if (!MF_CreatePatternBrush(dc, hbrush, &(brush->logbrush))) return (HBRUSH)0; break; } return (HBRUSH)1; } dc->w.hBrush = hbrush; if (dc->u.x.brush.pixmap) { XFreePixmap( display, dc->u.x.brush.pixmap ); dc->u.x.brush.pixmap = 0; } dc->u.x.brush.style = brush->logbrush.lbStyle; switch(brush->logbrush.lbStyle) { case BS_NULL: dprintf_gdi( stddeb,"BS_NULL\n" ); break; case BS_SOLID: dprintf_gdi( stddeb,"BS_SOLID\n" ); BRUSH_SelectSolidBrush( dc, brush->logbrush.lbColor ); break; case BS_HATCHED: dprintf_gdi( stddeb, "BS_HATCHED\n" ); dc->u.x.brush.pixel = COLOR_ToPhysical( dc, brush->logbrush.lbColor ); dc->u.x.brush.pixmap = XCreateBitmapFromData( display, rootWindow, HatchBrushes[brush->logbrush.lbHatch], 8, 8 ); dc->u.x.brush.fillStyle = FillStippled; break; case BS_PATTERN: dprintf_gdi( stddeb, "BS_PATTERN\n"); BRUSH_SelectPatternBrush( dc, (HBRUSH)brush->logbrush.lbHatch ); break; case BS_DIBPATTERN: dprintf_gdi( stddeb, "BS_DIBPATTERN\n"); if ((bmpInfo = (BITMAPINFO *) GlobalLock( (HANDLE)brush->logbrush.lbHatch ))) { int size = DIB_BitmapInfoSize( bmpInfo, brush->logbrush.lbColor ); hBitmap = CreateDIBitmap( hdc, &bmpInfo->bmiHeader, CBM_INIT, ((char *)bmpInfo) + size, bmpInfo, (WORD) brush->logbrush.lbColor ); BRUSH_SelectPatternBrush( dc, hBitmap ); DeleteObject( hBitmap ); GlobalUnlock( (HANDLE)brush->logbrush.lbHatch ); } break; } return prevHandle; }