| /* |
| * GDI brush objects |
| * |
| * Copyright 1993, 1994 Alexandre Julliard |
| */ |
| |
| #include <stdlib.h> |
| #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 LOGBRUSH16 * 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(*brush) ); |
| return hbrush; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateHatchBrush (GDI.58) |
| */ |
| HBRUSH CreateHatchBrush( INT style, COLORREF color ) |
| { |
| LOGBRUSH16 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 ) |
| { |
| LOGBRUSH16 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 = (INT16)CreateBitmapIndirect16( &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 ) |
| { |
| LOGBRUSH16 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 *) GlobalLock16( hbitmap ))) return 0; |
| |
| if (info->bmiHeader.biCompression) |
| size = info->bmiHeader.biSizeImage; |
| else |
| size = (info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) / 32 |
| * 8 * info->bmiHeader.biHeight; |
| size += DIB_BitmapInfoSize( info, coloruse ); |
| |
| if (!(logbrush.lbHatch = (INT)GlobalAlloc16( GMEM_MOVEABLE, size ))) |
| { |
| GlobalUnlock16( hbitmap ); |
| return 0; |
| } |
| newInfo = (BITMAPINFO *) GlobalLock16( (HANDLE)logbrush.lbHatch ); |
| memcpy( newInfo, info, size ); |
| GlobalUnlock16( (HANDLE)logbrush.lbHatch ); |
| GlobalUnlock16( hbitmap ); |
| return CreateBrushIndirect( &logbrush ); |
| } |
| |
| |
| /*********************************************************************** |
| * CreateSolidBrush (GDI.66) |
| */ |
| HBRUSH CreateSolidBrush( COLORREF color ) |
| { |
| LOGBRUSH16 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: |
| GlobalFree16( (HANDLE)brush->logbrush.lbHatch ); |
| break; |
| } |
| return GDI_FreeObject( hbrush ); |
| } |
| |
| |
| /*********************************************************************** |
| * BRUSH_GetObject |
| */ |
| int BRUSH_GetObject( BRUSHOBJ * brush, int count, LPSTR buffer ) |
| { |
| if (count > sizeof(brush->logbrush)) count = sizeof(brush->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( 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", |
| dc->hSelf,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 *) GlobalLock16( (HANDLE)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 ); |
| DeleteObject( hBitmap ); |
| GlobalUnlock16( (HANDLE)brush->logbrush.lbHatch ); |
| } |
| |
| break; |
| } |
| |
| return prevHandle; |
| } |