workbench/devs/diskimage/png_image/include/class.h

   1 /* Copyright 2007-2012 Fredrik Wikstrom. All rights reserved.
   2 **
   3 ** Redistribution and use in source and binary forms, with or without
   4 ** modification, are permitted provided that the following conditions
   5 ** are met:
   6 **
   7 ** 1. Redistributions of source code must retain the above copyright
   8 **    notice, this list of conditions and the following disclaimer.
   9 **
  10 ** 2. Redistributions in binary form must reproduce the above copyright
  11 **    notice, this list of conditions and the following disclaimer in the
  12 **    documentation and/or other materials provided with the distribution.
  13 **
  14 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  15 ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17 ** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  18 ** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  19 ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  20 ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  21 ** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  22 ** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  23 ** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  24 ** POSSIBILITY OF SUCH DAMAGE.
  25 */
  26
  27 #ifndef CLASS_H
  28 #define CLASS_H
  29
  30 #ifndef EXEC_EXEC_H
  31 #include <exec/exec.h>
  32 #endif
  33 #ifndef DOS_DOS_H
  34 #include <dos/dos.h>
  35 #endif
  36 #ifndef INTUITION_CLASSES_H
  37 #include <intuition/classes.h>
  38 #endif
  39 #ifndef INTUITION_IMAGECLASS_H
  40 #include <intuition/imageclass.h>
  41 #endif
  42 #ifndef IMAGES_BITMAP_H
  43 #include <images/bitmap.h>
  44 #endif
  45 #ifndef TYPES_H
  46 #include <types.h>
  47 #endif
  48 #ifndef SDI_COMPILER_H
  49 #include <SDI_compiler.h>
  50 #endif
  51
  52 struct ClassBase {
  53         struct Library libNode;
  54         UWORD pad;
  55         Class *class;
  56         BPTR seglist;
  57 };
  58
  59 #define PNG_Screen             BITMAP_Screen
  60 #define PNG_SourceFile         BITMAP_SourceFile
  61 #define PNG_SelectSourceFile   BITMAP_SelectSourceFile
  62 #define PNG_DisabledSourceFile (BITMAP_Dummy + 19)
  63
  64 enum {
  65         IMG_NORMAL = 0,
  66         IMG_SELECTED,
  67         IMG_DISABLED
  68 };
  69
  70 struct ClassData {
  71         struct Screen *screen;
  72         WORD width, height;
  73         UBYTE *image[3];
  74         ULONG pen_map[8];
  75         struct BitMap *bm[3];
  76         PLANEPTR mask[3];
  77         BOOL rtg;
  78         BOOL truecolor;
  79 };
  80
  81 #define HAS_IMAGE(d,x) ((d)->truecolor ? (IPTR)(d)->image[x] : \
  82         (IPTR)((d)->bm[x] && (d)->mask[x]))
  83
  84 struct HookData {
  85         LONG x, y, w, h;
  86         UBYTE *image;
  87 };
  88
  89 struct BackFillMessage {
  90         struct Layer     *Layer;
  91         struct Rectangle  Bounds;
  92         LONG              OffsetX;
  93         LONG              OffsetY;
  94 };
  95
  96 /* class.c */
  97 IPTR ClassDispatch (REG(a0, Class *cl), REG(a2, Object *o), REG(a1, Msg msg));
  98
  99 /* loadpng.c */
 100 BOOL LoadPNG (struct ClassData *data, const char *filename, LONG index);
 101
 102 /* remap.c */
 103 void PenMap_ReleasePens (ULONG *pen_map, struct Screen *screen);
 104 BOOL RemapRGBAImage (struct Screen *screen, BOOL rtg, UBYTE *rgba, WORD w, WORD h,
 105         ULONG *pen_map, struct BitMap **bm_p, PLANEPTR *mask_p);
 106
 107 /* writergbapixels_p96.c */
 108 BOOL IsSupportedRGBFormat_P96 (ULONG rgbformat);
 109 IPTR WriteRGBAPixels_P96 (REG(a0, struct Hook *hook), REG(a2, struct RastPort *rp),
 110         REG(a1, struct BackFillMessage *msg));
 111
 112 /* writergbapixels_cgx.c */
 113 BOOL IsSupportedRGBFormat_CGX (ULONG rgbformat);
 114 IPTR WriteRGBAPixels_CGX (REG(a0, struct Hook *hook), REG(a2, struct RastPort *rp),
 115         REG(a1, struct BackFillMessage *msg));
 116
 117 #endif