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annotate buffers.pde @ 193:7a9dc175ece5

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Use dst = src.slice(0) instead of Processing arrayCopy(src, dst) for cloning arrays. Should be faster, but if not, this can be reverted later.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 23 Aug 2018 18:01:16 +0300
parents 72ae62f2036b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
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1 // undo / spare
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2
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3 final int UNDOSTEPS = 20; // max # of undo steps
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4
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5 byte[] g_sparepage = new byte[88000];
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6 byte[] g_swappage = new byte[88000];
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7 byte[][] g_undob = new byte[UNDOSTEPS + 1][88000];
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8 byte[][] g_undobs = new byte[UNDOSTEPS + 1][88000];
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9 int[] g_uindex = new int[8];
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10 int[] g_ubottom = new int[8];
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11 int[] g_utop = new int[8];
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12
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13
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14 void ustats()
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15 {
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16 //a debug thingie in case the step undo does not work
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17 //println("UINDEX:"+g_uindex[g_spare]);
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18 //println("UTOP:"+g_utop[g_spare]);
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19 //println("UBOTTOM:"+g_ubottom[g_spare]);
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20 }
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21
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22
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23 void store_undo()
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24 {
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25 if (g_spare)
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26 g_undobs[g_uindex[g_spare]] = g_map.slice(0);
131
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27 else
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28 g_undob[g_uindex[g_spare]] = g_map.slice(0);
131
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29
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30 g_uindex[g_spare]++;
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31 if (g_uindex[g_spare] > UNDOSTEPS)
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32 g_uindex[g_spare] = 0;
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33
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34 if (g_uindex[g_spare] == g_ubottom[g_spare])
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35 {
131
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36 g_ubottom[g_spare]++;
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37 if (g_ubottom[g_spare] > UNDOSTEPS)
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38 g_ubottom[g_spare] = 0;
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39 }
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40 g_utop[g_spare] = g_uindex[g_spare];
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41
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42 refreshpalette();
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43 ustats();
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44 }
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45
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46
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47 void restore_undo()
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48 {
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49 if (g_uindex[g_spare] == g_ubottom[g_spare])
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50 return;
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51
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52 if (g_spare)
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53 g_undobs[g_uindex[g_spare]] = g_map.slice(0);
131
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54 else
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55 g_undob[g_uindex[g_spare]] = g_map.slice(0);
131
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56
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57 g_uindex[g_spare]--;
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58 if (g_uindex[g_spare] < 0)
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59 g_uindex[g_spare] = UNDOSTEPS;
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60
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61 if (g_spare)
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62 g_map = g_undobs[g_uindex[g_spare]].slice(0);
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63 else
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64 g_map = g_undob[g_uindex[g_spare]].slice(0);
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65
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66 refreshpalette();
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67 ustats();
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68 }
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69
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70
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71 void redo_undo()
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72 {
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73 if (g_uindex[g_spare] == g_utop[g_spare])
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74 return;
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75
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76 g_uindex[g_spare]++;
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77 if (g_uindex[g_spare] > UNDOSTEPS)
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78 g_uindex[g_spare] = 0;
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79
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80 if (g_spare)
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81 g_map = g_undobs[g_uindex[g_spare]].slice(0);
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82 else
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83 g_map = g_undob[g_uindex[g_spare]].slice(0);
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84
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85 refreshpalette();
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86 ustats();
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87 }
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88
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89
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90 void spare() //dpaint style spare page
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91 {
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92 g_swappage = g_sparepage.slice(0);
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93 g_sparepage = g_map.slice(0);
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94 g_map = g_swappage.slice(0);
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95
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96 mpSetTitle(g_spare ? sfilename : filename);
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97
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98 g_spare = 1 - g_spare;
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99 g_realfront = byte(g_farge);
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100 g_realback = byte(g_backg);
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101 refreshpalette();
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102 }
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103
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104
135
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105 void switcher(int mode)
131
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106 {
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107 // this achieves varieties of whole screen copying
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108 // needed for brush copy and pre-drawing the shapes when a
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109 // tool is active etc.
135
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110 switch (mode)
132
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111 {
131
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112 case 0:
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113 g_rmap = g_map.slice(0);
131
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114 break;
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115 case 1:
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116 g_map = g_rmap.slice(0);
132
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117 for (int i = 0; i < 1024; i++)
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118 {
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119 if (g_remdo[i] == 1)
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120 {
131
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121 g_remdo[i] = 0;
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122 g_redo[i] = 0;
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123 }
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
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parents:
diff changeset
124 }
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
125 break;
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
126 case 2:
193
7a9dc175ece5 Use dst = src.slice(0) instead of Processing arrayCopy(src, dst) for cloning arrays. Should be faster, but if not, this can be reverted later.
Matti Hamalainen <ccr@tnsp.org>
parents: 135
diff changeset
127 g_brush = g_map.slice(0);
131
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
128 break;
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
129 case 3:
193
7a9dc175ece5 Use dst = src.slice(0) instead of Processing arrayCopy(src, dst) for cloning arrays. Should be faster, but if not, this can be reverted later.
Matti Hamalainen <ccr@tnsp.org>
parents: 135
diff changeset
130 g_sparepage = g_map.slice(0);
131
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
131 break;
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
132 case 4:
193
7a9dc175ece5 Use dst = src.slice(0) instead of Processing arrayCopy(src, dst) for cloning arrays. Should be faster, but if not, this can be reverted later.
Matti Hamalainen <ccr@tnsp.org>
parents: 135
diff changeset
133 g_mapm = g_sparepage.slice(0);
131
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
134 break;
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
135 }
9d17f991f102 Move undo and spare page management into buffers.pde as in Multipaint 2018.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
136 }