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annotate utils/frmconv/frm.h @ 151:afcd83f7fac8

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Backwards compatibility module fife_compat. Import and you'll get the old interface. This is just a start to make small API changes smoother.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 11 Oct 2008 12:25:53 +0000
parents 90005975cdbb
children
rev   line source
46
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
0
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22 #ifndef FRM_H_
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23 #define FRM_H_
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24
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25 // Some constant offset in the frm file for easier readability of the later code
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26 // The documentation use both "direction" and "orientation". I stick to "orientation"
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27 #define FRM_OFFSET_VERSION_NR 0x00
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28 #define FRM_OFFSET_FRAMESPERORIENT 0x08
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29 #define FRM_OFFSET_SHIFTX_ORIENT0 0x0A
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30 #define FRM_OFFSET_SHIFTX_ORIENT1 0x0C
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31 #define FRM_OFFSET_SHIFTX_ORIENT2 0x0E
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32 #define FRM_OFFSET_SHIFTX_ORIENT3 0x10
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33 #define FRM_OFFSET_SHIFTX_ORIENT4 0x12
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34 #define FRM_OFFSET_SHIFTX_ORIENT5 0x14
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35 #define FRM_OFFSET_SHIFTY_ORIENT0 0x16
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36 #define FRM_OFFSET_SHIFTY_ORIENT1 0x18
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37 #define FRM_OFFSET_SHIFTY_ORIENT2 0x1A
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38 #define FRM_OFFSET_SHIFTY_ORIENT3 0x1C
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39 #define FRM_OFFSET_SHIFTY_ORIENT4 0x1E
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40 #define FRM_OFFSET_SHIFTY_ORIENT5 0x20
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41 #define FRM_OFFSET_FIRSTFRAME_ORIENT0 0x22
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42 #define FRM_OFFSET_FIRSTFRAME_ORIENT1 0x26
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43 #define FRM_OFFSET_FIRSTFRAME_ORIENT2 0x2A
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44 #define FRM_OFFSET_FIRSTFRAME_ORIENT3 0x2E
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45 #define FRM_OFFSET_FIRSTFRAME_ORIENT4 0x32
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46 #define FRM_OFFSET_FIRSTFRAME_ORIENT5 0x36
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47 #define FRM_OFFSET_FRAMEAREASIZE 0x3A
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48 #define FRM_OFFSET_FRAMEDATA 0x3E
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49
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50 // These are relative offset
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51 // Example: The absolute offset of the height of frame 0 is therefore:
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52 // 0x40 == FRM_OFFSET_FRAMEDATA + FRMFRAME_OFFSET_HEIGHT
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53 #define FRMFRAME_OFFSET_WIDTH 0x00
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54 #define FRMFRAME_OFFSET_HEIGHT 0x02
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55 #define FRMFRAME_OFFSET_SIZE 0x04
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56 #define FRMFRAME_OFFSET_XOFF 0x08
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57 #define FRMFRAME_OFFSET_YOFF 0x0A
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58 #define FRMFRAME_OFFSET_DATA 0x0C
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59
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60 typedef struct {
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61 uint8_t red;
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62 uint8_t green;
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63 uint8_t blue;
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64 } frm_color;
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65
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66
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67 typedef struct _frm_frame {
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68 uint16_t width; // self-explanatory
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69 uint16_t height; //
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70 uint32_t framesize; // Should be equal to width*height
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71 uint8_t orient; // The orientation of the frame.
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72 unsigned char **rowptr; // the actual image data. The byte value is in index in a palette (pal.h)
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73
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74 struct _frm_frame *next_frame; // Pointer to the next frame. NULL ends the list :)
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75 } frm_frame;
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76
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77 typedef struct {
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78 uint16_t frameperorient; // FramesPerOrientation at offset 0x8 (size: two bytes) in the frm file
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79 uint32_t frameareasize; // Frameareasize at offset 0x3A (size: four bytes) in the frm file
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80 // I haven't checked, if this value is always correct. If it is, we should
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81 // use the information for the memory allocation.
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82
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83 uint32_t nrofframes; // The number of frames in this animation
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84
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85 frm_color *palette; // A pointer to the palette. Normally the one from pal.h
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86
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87 frm_frame *frames; // A single linked list of frm_frame. Each frm_frame describes one frame
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88 // There should be nrofframes many.
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89 } frm_anim;
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90
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91
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92
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93 frm_anim *loadFRMAnim(FILE *frmfile);
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94 void freefrmanim(frm_anim *anim);
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95
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96 #endif /*FRM_H_*/