dlls/winedib.drv/dibdrv.h

   1 /*
   2  * DIB driver private definitions
   3  *
   4  * Copyright 2007 Jesse Allen
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_DIBDRV_H
  22 #define __WINE_DIBDRV_H
  23
  24 #include "wingdi.h"
  25
  26 typedef enum _DIBFORMAT
  27 {
  28     DIBFMT_UNKNOWN          =   0,
  29     DIBFMT_DIB1             =   1,
  30     DIBFMT_DIB4             =   2,
  31     /*DIBFMT_DIB4RLE          =   3,*/
  32     DIBFMT_DIB8             =   4,
  33     /*DIBFMT_DIB8RLE          =   5,*/
  34     DIBFMT_DIB16            =   6,
  35     DIBFMT_DIB24            =   7,
  36     DIBFMT_DIB32            =   8,
  37     DIBFMT_X1B5G5R5         =   9,
  38     DIBFMT_X8B8G8R8         =  10
  39 } DIBFORMAT;
  40
  41 /* DIB driver's generic bitmap structure */
  42 typedef struct _DIBDRVBITMAP
  43 {
  44     DIBFORMAT format;
  45     void *bits;
  46     INT width;
  47     INT height;
  48     INT widthbytes;
  49     INT size;
  50     BOOL top_down;
  51     RGBQUAD *color_table;
  52     UINT nb_colors;
  53     DWORD bitfields[3];
  54
  55     /* calculated numbers for bitfields */
  56     INT bf_pos[3];   /* starting position of the field */
  57     INT bf_size[3];  /* size of the field */
  58     INT bf_shift[3]; /* shifting required within a COLORREF's BYTE */
  59
  60     /* current drawing address */
  61     void *addr;
  62     INT shift;
  63
  64     /* ready encoded colors for drawing */
  65     BYTE color8;
  66     WORD color16;
  67     RGBTRIPLE color24;
  68     DWORD color32;
  69 } DIBDRVBITMAP;
  70
  71 /* DIB conversions functions */
  72 typedef struct _DIBCONVERT
  73 {
  74     void (*ConvertToDIB1)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  75     void (*ConvertToDIB4)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  76     void (*ConvertToDIB8)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  77     void (*ConvertToDIB16)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  78     void (*ConvertToDIB24)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  79     void (*ConvertToDIB32)(DIBDRVBITMAP*,DIBDRVBITMAP*,int);
  80 } DIBCONVERT;
  81
  82 /* DIB manipulation functions */
  83 typedef struct _DIBFUNCS
  84 {
  85     void (*AdvancePosition)(DIBDRVBITMAP*,int);
  86     void (*Copy)(DIBDRVBITMAP*,DIBDRVBITMAP*,int,const DIBCONVERT*);
  87     void (*MoveXY)(DIBDRVBITMAP*,INT,INT);
  88     void (*ReadColor)(DIBDRVBITMAP*,BYTE*,BYTE*,BYTE*);
  89     void (*SelectColor)(DIBDRVBITMAP*,COLORREF);
  90     void (*SetPixel)(DIBDRVBITMAP*,COLORREF);
  91     void (*WriteColor)(DIBDRVBITMAP*,int);
  92 } DIBFUNCS;
  93
  94 /* DIB driver physical device */
  95 typedef struct _DIBDRVPHYSDEV
  96 {
  97     HDC hdc;
  98     HBITMAP hbitmap;
  99     DIBDRVBITMAP *bmp;
 100     const DIBFUNCS *funcs;
 101     const DIBCONVERT *convs;
 102 } DIBDRVPHYSDEV;
 103
 104 /* bitmap handling functions */
 105 extern DIBFORMAT BITMAP_GetFormat( WORD depth, DWORD compression );
 106 extern const DIBFUNCS *BITMAP_GetDIBFuncs( DIBFORMAT format );
 107 extern const DIBCONVERT *BITMAP_GetDIBConversions( DIBFORMAT format );
 108 extern DIBDRVBITMAP *BITMAP_CreateFromBmi( const BITMAPINFO *bmi, void *bits );
 109 extern DIBDRVBITMAP *BITMAP_CreateFromHBitmap( HBITMAP hbitmap, RGBQUAD *ct, UINT nb_colors );
 110
 111 /* DIB function tables for each format */
 112 extern const DIBFUNCS DIB1_funcs, DIB4_funcs, DIB8_funcs, DIB16_funcs, DIB24_funcs, DIB32_funcs;
 113 extern const DIBCONVERT DIB1_convs, DIB4_convs, DIB8_convs, DIB16_convs, DIB24_convs, DIB32_convs;
 114
 115 #endif /* __WINE_DIBDRV_H */