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annotate src/chgcolor.c @ 425:09a66063b25d

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Fix issue of missed function for unittest. If we make for unittest, it will be failed for missed functions. Since we change name of functions to avoid type conflict, ld can not find the functions with original names. So, we make dummy functions to resolve it. We had better decouple them to avoid this problem.
author Thinker K.F. Li <thinker@branda.to>
date Tue, 28 Jul 2009 15:11:42 +0800
parents 530bb7728546
children 586e50f82c1f
rev   line source
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "mb_animate.h"
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4 #include "mb_paint.h"
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5
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6 static float comp_mb_timeval_ratio(const mb_timeval_t *a,
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7 const mb_timeval_t *b) {
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8 float ratio;
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9
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10 ratio = (float)MB_TIMEVAL_SEC(a) * 1000000.0 + (float)MB_TIMEVAL_USEC(a);
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11 ratio /= (float)MB_TIMEVAL_SEC(b) * 1000000.0 + (float)MB_TIMEVAL_USEC(b);
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12 return ratio;
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13 }
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14
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15 typedef struct _mb_chgcolor mb_chgcolor_t;
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16
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17 struct _mb_chgcolor {
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18 mb_action_t action;
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19
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20 co_comp_t r, g, b, a;
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21 paint_t *paint;
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22
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23 mb_timeval_t start_time;
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24 const mb_timeval_t *playing_time;
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25 co_comp_t s_r, s_g, s_b, s_a; /*!< saved RGBA values. */
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26 };
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27
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28 static void mb_chgcolor_start(mb_action_t *act,
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29 const mb_timeval_t *now,
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30 const mb_timeval_t *playing_time,
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31 redraw_man_t *rdman) {
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32 mb_chgcolor_t *chg = (mb_chgcolor_t *)act;
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33
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34 MB_TIMEVAL_CP(&chg->start_time, now);
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35 chg->playing_time = playing_time; /* playing_time is in word,
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36 * it live time is as long as
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37 * actions. */
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38 paint_color_get(chg->paint,
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39 &chg->s_r, &chg->s_g,
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40 &chg->s_b, &chg->s_a);
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41 }
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42
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43 static void mb_chgcolor_step(mb_action_t *act,
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44 const mb_timeval_t *now,
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45 redraw_man_t *rdman) {
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46 mb_chgcolor_t *chg = (mb_chgcolor_t *)act;
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47 mb_timeval_t diff;
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48 co_comp_t r, g, b, a;
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49 float ratio, comp;
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50
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51 MB_TIMEVAL_CP(&diff, now);
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52 MB_TIMEVAL_DIFF(&diff, &chg->start_time);
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53 ratio = comp_mb_timeval_ratio(&diff, chg->playing_time);
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54 comp = 1 - ratio;
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55
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56 r = chg->s_r * comp + ratio * chg->r;
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57 g = chg->s_g * comp + ratio * chg->g;
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58 b = chg->s_b * comp + ratio * chg->b;
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59 a = chg->s_a * comp + ratio * chg->a;
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60 paint_color_set(chg->paint, r, g, b, a);
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61
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62 rdman_paint_changed(rdman, chg->paint);
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63 }
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64
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65 static void mb_chgcolor_stop(mb_action_t *act,
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66 const mb_timeval_t *now,
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67 redraw_man_t *rdman) {
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68 mb_chgcolor_t *chg = (mb_chgcolor_t *)act;
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69
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70 paint_color_set(chg->paint, chg->r, chg->g, chg->b, chg->a);
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71
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72 rdman_paint_changed(rdman, chg->paint);
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73 }
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74
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75 static void mb_chgcolor_free(mb_action_t *act) {
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76 free(act);
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77 }
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78
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79 mb_action_t *mb_chgcolor_new(co_comp_t r, co_comp_t g,
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80 co_comp_t b, co_comp_t a,
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81 paint_t *paint, mb_word_t *word) {
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82 mb_chgcolor_t *chg;
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83
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84 chg = (mb_chgcolor_t *)malloc(sizeof(mb_chgcolor_t));
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85 if(chg == NULL)
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86 return NULL;
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87
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88 chg->r = r;
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89 chg->g = g;
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90 chg->b = b;
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91 chg->a = a;
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92
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93 chg->paint = paint;
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94
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95 chg->action.start = mb_chgcolor_start;
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96 chg->action.step = mb_chgcolor_step;
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97 chg->action.stop = mb_chgcolor_stop;
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98 chg->action.free = mb_chgcolor_free;
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99
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100 mb_word_add_action(word, (mb_action_t *)chg);
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101
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102 return (mb_action_t *)chg;
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103 }
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104
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105