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11 <h1>examples/PIPS/antiword/src/dib2eps.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> |
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12 <a name="l00002"></a>00002 <span class="comment"> * dib2eps.c</span> |
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13 <a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2000-2003 A.J. van Os; Released under GPL</span> |
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14 <a name="l00004"></a>00004 <span class="comment"> *</span> |
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15 <a name="l00005"></a>00005 <span class="comment"> * Description:</span> |
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16 <a name="l00006"></a>00006 <span class="comment"> * Functions to translate dib pictures into eps</span> |
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17 <a name="l00007"></a>00007 <span class="comment"> *</span> |
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18 <a name="l00008"></a>00008 <span class="comment"> *================================================================</span> |
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19 <a name="l00009"></a>00009 <span class="comment"> * This part of the software is based on:</span> |
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20 <a name="l00010"></a>00010 <span class="comment"> * The Windows Bitmap Decoder Class part of paintlib</span> |
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21 <a name="l00011"></a>00011 <span class="comment"> * Paintlib is copyright (c) 1996-2000 Ulrich von Zadow</span> |
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22 <a name="l00012"></a>00012 <span class="comment"> *================================================================</span> |
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23 <a name="l00013"></a>00013 <span class="comment"> * The credit should go to him, but all the bugs are mine.</span> |
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24 <a name="l00014"></a>00014 <span class="comment"> */</span> |
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25 <a name="l00015"></a>00015 |
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26 <a name="l00016"></a>00016 <span class="preprocessor">#include <stdio.h></span> |
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27 <a name="l00017"></a>00017 <span class="preprocessor">#include "antiword.h"</span> |
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28 <a name="l00018"></a>00018 |
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29 <a name="l00019"></a>00019 |
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30 <a name="l00020"></a>00020 <span class="comment">/*</span> |
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31 <a name="l00021"></a>00021 <span class="comment"> * vDecode1bpp - decode an uncompressed 1 bit per pixel image</span> |
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32 <a name="l00022"></a>00022 <span class="comment"> */</span> |
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33 <a name="l00023"></a>00023 <span class="keyword">static</span> <span class="keywordtype">void</span> |
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34 <a name="l00024"></a>00024 vDecode1bpp(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
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35 <a name="l00025"></a>00025 { |
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36 <a name="l00026"></a>00026 <span class="keywordtype">size_t</span> tPadding; |
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37 <a name="l00027"></a>00027 <span class="keywordtype">int</span> iX, iY, iN, iByte, iTmp, iEighthWidth, iUse; |
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38 <a name="l00028"></a>00028 |
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39 <a name="l00029"></a>00029 DBG_MSG(<span class="stringliteral">"vDecode1bpp"</span>); |
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40 <a name="l00030"></a>00030 |
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41 <a name="l00031"></a>00031 fail(pOutFile == NULL); |
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42 <a name="l00032"></a>00032 fail(pImg == NULL); |
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43 <a name="l00033"></a>00033 fail(pImg->iColorsUsed < 1 || pImg->iColorsUsed > 2); |
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44 <a name="l00034"></a>00034 |
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45 <a name="l00035"></a>00035 DBG_DEC(pImg->iWidth); |
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46 <a name="l00036"></a>00036 DBG_DEC(pImg->iHeight); |
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47 <a name="l00037"></a>00037 |
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48 <a name="l00038"></a>00038 iEighthWidth = (pImg->iWidth + 7) / 8; |
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49 <a name="l00039"></a>00039 tPadding = (size_t)(ROUND4(iEighthWidth) - iEighthWidth); |
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50 <a name="l00040"></a>00040 |
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51 <a name="l00041"></a>00041 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight; iY++) { |
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52 <a name="l00042"></a>00042 <span class="keywordflow">for</span> (iX = 0; iX < iEighthWidth; iX++) { |
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53 <a name="l00043"></a>00043 iByte = iNextByte(pInFile); |
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54 <a name="l00044"></a>00044 <span class="keywordflow">if</span> (iByte == EOF) { |
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55 <a name="l00045"></a>00045 vASCII85EncodeByte(pOutFile, EOF); |
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56 <a name="l00046"></a>00046 <span class="keywordflow">return</span>; |
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57 <a name="l00047"></a>00047 } |
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58 <a name="l00048"></a>00048 <span class="keywordflow">if</span> (iX == iEighthWidth - 1 && pImg->iWidth % 8 != 0) { |
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59 <a name="l00049"></a>00049 iUse = pImg->iWidth % 8; |
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60 <a name="l00050"></a>00050 } <span class="keywordflow">else</span> { |
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61 <a name="l00051"></a>00051 iUse = 8; |
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62 <a name="l00052"></a>00052 } |
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63 <a name="l00053"></a>00053 <span class="keywordflow">for</span> (iN = 0; iN < iUse; iN++) { |
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64 <a name="l00054"></a>00054 <span class="keywordflow">switch</span> (iN) { |
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65 <a name="l00055"></a>00055 <span class="keywordflow">case</span> 0: iTmp = (iByte & 0x80) / 128; <span class="keywordflow">break</span>; |
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66 <a name="l00056"></a>00056 <span class="keywordflow">case</span> 1: iTmp = (iByte & 0x40) / 64; <span class="keywordflow">break</span>; |
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67 <a name="l00057"></a>00057 <span class="keywordflow">case</span> 2: iTmp = (iByte & 0x20) / 32; <span class="keywordflow">break</span>; |
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68 <a name="l00058"></a>00058 <span class="keywordflow">case</span> 3: iTmp = (iByte & 0x10) / 16; <span class="keywordflow">break</span>; |
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69 <a name="l00059"></a>00059 <span class="keywordflow">case</span> 4: iTmp = (iByte & 0x08) / 8; <span class="keywordflow">break</span>; |
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70 <a name="l00060"></a>00060 <span class="keywordflow">case</span> 5: iTmp = (iByte & 0x04) / 4; <span class="keywordflow">break</span>; |
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71 <a name="l00061"></a>00061 <span class="keywordflow">case</span> 6: iTmp = (iByte & 0x02) / 2; <span class="keywordflow">break</span>; |
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72 <a name="l00062"></a>00062 <span class="keywordflow">case</span> 7: iTmp = (iByte & 0x01); <span class="keywordflow">break</span>; |
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73 <a name="l00063"></a>00063 <span class="keywordflow">default</span>: iTmp = 0; <span class="keywordflow">break</span>; |
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74 <a name="l00064"></a>00064 } |
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75 <a name="l00065"></a>00065 vASCII85EncodeByte(pOutFile, iTmp); |
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76 <a name="l00066"></a>00066 } |
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77 <a name="l00067"></a>00067 } |
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78 <a name="l00068"></a>00068 (void)tSkipBytes(pInFile, tPadding); |
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79 <a name="l00069"></a>00069 } |
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80 <a name="l00070"></a>00070 vASCII85EncodeByte(pOutFile, EOF); |
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81 <a name="l00071"></a>00071 } <span class="comment">/* end of vDecode1bpp */</span> |
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82 <a name="l00072"></a>00072 |
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83 <a name="l00073"></a>00073 <span class="comment">/*</span> |
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84 <a name="l00074"></a>00074 <span class="comment"> * vDecode4bpp - decode an uncompressed 4 bits per pixel image</span> |
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85 <a name="l00075"></a>00075 <span class="comment"> */</span> |
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86 <a name="l00076"></a>00076 <span class="keyword">static</span> <span class="keywordtype">void</span> |
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87 <a name="l00077"></a>00077 vDecode4bpp(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
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88 <a name="l00078"></a>00078 { |
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89 <a name="l00079"></a>00079 <span class="keywordtype">size_t</span> tPadding; |
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90 <a name="l00080"></a>00080 <span class="keywordtype">int</span> iX, iY, iN, iByte, iTmp, iHalfWidth, iUse; |
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91 <a name="l00081"></a>00081 |
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92 <a name="l00082"></a>00082 DBG_MSG(<span class="stringliteral">"vDecode4bpp"</span>); |
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93 <a name="l00083"></a>00083 |
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94 <a name="l00084"></a>00084 fail(pInFile == NULL); |
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95 <a name="l00085"></a>00085 fail(pOutFile == NULL); |
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96 <a name="l00086"></a>00086 fail(pImg == NULL); |
|
97 <a name="l00087"></a>00087 fail(pImg->iColorsUsed < 1 || pImg->iColorsUsed > 16); |
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98 <a name="l00088"></a>00088 |
|
99 <a name="l00089"></a>00089 DBG_DEC(pImg->iWidth); |
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100 <a name="l00090"></a>00090 DBG_DEC(pImg->iHeight); |
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101 <a name="l00091"></a>00091 |
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102 <a name="l00092"></a>00092 iHalfWidth = (pImg->iWidth + 1) / 2; |
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103 <a name="l00093"></a>00093 tPadding = (size_t)(ROUND4(iHalfWidth) - iHalfWidth); |
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104 <a name="l00094"></a>00094 |
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105 <a name="l00095"></a>00095 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight; iY++) { |
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106 <a name="l00096"></a>00096 <span class="keywordflow">for</span> (iX = 0; iX < iHalfWidth; iX++) { |
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107 <a name="l00097"></a>00097 iByte = iNextByte(pInFile); |
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108 <a name="l00098"></a>00098 <span class="keywordflow">if</span> (iByte == EOF) { |
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109 <a name="l00099"></a>00099 vASCII85EncodeByte(pOutFile, EOF); |
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110 <a name="l00100"></a>00100 <span class="keywordflow">return</span>; |
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111 <a name="l00101"></a>00101 } |
|
112 <a name="l00102"></a>00102 <span class="keywordflow">if</span> (iX == iHalfWidth - 1 && odd(pImg->iWidth)) { |
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113 <a name="l00103"></a>00103 iUse = 1; |
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114 <a name="l00104"></a>00104 } <span class="keywordflow">else</span> { |
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115 <a name="l00105"></a>00105 iUse = 2; |
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116 <a name="l00106"></a>00106 } |
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117 <a name="l00107"></a>00107 <span class="keywordflow">for</span> (iN = 0; iN < iUse; iN++) { |
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118 <a name="l00108"></a>00108 <span class="keywordflow">if</span> (odd(iN)) { |
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119 <a name="l00109"></a>00109 iTmp = iByte & 0x0f; |
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120 <a name="l00110"></a>00110 } <span class="keywordflow">else</span> { |
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121 <a name="l00111"></a>00111 iTmp = (iByte & 0xf0) / 16; |
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122 <a name="l00112"></a>00112 } |
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123 <a name="l00113"></a>00113 vASCII85EncodeByte(pOutFile, iTmp); |
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124 <a name="l00114"></a>00114 } |
|
125 <a name="l00115"></a>00115 } |
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126 <a name="l00116"></a>00116 (void)tSkipBytes(pInFile, tPadding); |
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127 <a name="l00117"></a>00117 } |
|
128 <a name="l00118"></a>00118 vASCII85EncodeByte(pOutFile, EOF); |
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129 <a name="l00119"></a>00119 } <span class="comment">/* end of vDecode4bpp */</span> |
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130 <a name="l00120"></a>00120 |
|
131 <a name="l00121"></a>00121 <span class="comment">/*</span> |
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132 <a name="l00122"></a>00122 <span class="comment"> * vDecode8bpp - decode an uncompressed 8 bits per pixel image</span> |
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133 <a name="l00123"></a>00123 <span class="comment"> */</span> |
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134 <a name="l00124"></a>00124 <span class="keyword">static</span> <span class="keywordtype">void</span> |
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135 <a name="l00125"></a>00125 vDecode8bpp(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
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136 <a name="l00126"></a>00126 { |
|
137 <a name="l00127"></a>00127 <span class="keywordtype">size_t</span> tPadding; |
|
138 <a name="l00128"></a>00128 <span class="keywordtype">int</span> iX, iY, iByte; |
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139 <a name="l00129"></a>00129 |
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140 <a name="l00130"></a>00130 DBG_MSG(<span class="stringliteral">"vDecode8bpp"</span>); |
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141 <a name="l00131"></a>00131 |
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142 <a name="l00132"></a>00132 fail(pInFile == NULL); |
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143 <a name="l00133"></a>00133 fail(pOutFile == NULL); |
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144 <a name="l00134"></a>00134 fail(pImg == NULL); |
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145 <a name="l00135"></a>00135 fail(pImg->iColorsUsed < 1 || pImg->iColorsUsed > 256); |
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146 <a name="l00136"></a>00136 |
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147 <a name="l00137"></a>00137 DBG_DEC(pImg->iWidth); |
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148 <a name="l00138"></a>00138 DBG_DEC(pImg->iHeight); |
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149 <a name="l00139"></a>00139 |
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150 <a name="l00140"></a>00140 tPadding = (size_t)(ROUND4(pImg->iWidth) - pImg->iWidth); |
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151 <a name="l00141"></a>00141 |
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152 <a name="l00142"></a>00142 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight; iY++) { |
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153 <a name="l00143"></a>00143 <span class="keywordflow">for</span> (iX = 0; iX < pImg->iWidth; iX++) { |
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154 <a name="l00144"></a>00144 iByte = iNextByte(pInFile); |
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155 <a name="l00145"></a>00145 <span class="keywordflow">if</span> (iByte == EOF) { |
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156 <a name="l00146"></a>00146 vASCII85EncodeByte(pOutFile, EOF); |
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157 <a name="l00147"></a>00147 <span class="keywordflow">return</span>; |
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158 <a name="l00148"></a>00148 } |
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159 <a name="l00149"></a>00149 vASCII85EncodeByte(pOutFile, iByte); |
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160 <a name="l00150"></a>00150 } |
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161 <a name="l00151"></a>00151 (void)tSkipBytes(pInFile, tPadding); |
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162 <a name="l00152"></a>00152 } |
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163 <a name="l00153"></a>00153 vASCII85EncodeByte(pOutFile, EOF); |
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164 <a name="l00154"></a>00154 } <span class="comment">/* end of vDecode8bpp */</span> |
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165 <a name="l00155"></a>00155 |
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166 <a name="l00156"></a>00156 <span class="comment">/*</span> |
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167 <a name="l00157"></a>00157 <span class="comment"> * vDecode24bpp - decode an uncompressed 24 bits per pixel image</span> |
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168 <a name="l00158"></a>00158 <span class="comment"> */</span> |
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169 <a name="l00159"></a>00159 <span class="keyword">static</span> <span class="keywordtype">void</span> |
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170 <a name="l00160"></a>00160 vDecode24bpp(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
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171 <a name="l00161"></a>00161 { |
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172 <a name="l00162"></a>00162 <span class="keywordtype">size_t</span> tPadding; |
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173 <a name="l00163"></a>00163 <span class="keywordtype">int</span> iX, iY, iBlue, iGreen, iRed, iTripleWidth; |
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174 <a name="l00164"></a>00164 |
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175 <a name="l00165"></a>00165 DBG_MSG(<span class="stringliteral">"vDecode24bpp"</span>); |
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176 <a name="l00166"></a>00166 |
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177 <a name="l00167"></a>00167 fail(pInFile == NULL); |
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178 <a name="l00168"></a>00168 fail(pOutFile == NULL); |
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179 <a name="l00169"></a>00169 fail(pImg == NULL); |
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180 <a name="l00170"></a>00170 fail(!pImg->bColorImage); |
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181 <a name="l00171"></a>00171 |
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182 <a name="l00172"></a>00172 DBG_DEC(pImg->iWidth); |
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183 <a name="l00173"></a>00173 DBG_DEC(pImg->iHeight); |
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184 <a name="l00174"></a>00174 |
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185 <a name="l00175"></a>00175 iTripleWidth = pImg->iWidth * 3; |
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186 <a name="l00176"></a>00176 tPadding = (size_t)(ROUND4(iTripleWidth) - iTripleWidth); |
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187 <a name="l00177"></a>00177 |
|
188 <a name="l00178"></a>00178 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight; iY++) { |
|
189 <a name="l00179"></a>00179 <span class="keywordflow">for</span> (iX = 0; iX < pImg->iWidth; iX++) { |
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190 <a name="l00180"></a>00180 <span class="comment">/* Change from BGR order to RGB order */</span> |
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191 <a name="l00181"></a>00181 iBlue = iNextByte(pInFile); |
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192 <a name="l00182"></a>00182 <span class="keywordflow">if</span> (iBlue == EOF) { |
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193 <a name="l00183"></a>00183 vASCII85EncodeByte(pOutFile, EOF); |
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194 <a name="l00184"></a>00184 <span class="keywordflow">return</span>; |
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195 <a name="l00185"></a>00185 } |
|
196 <a name="l00186"></a>00186 iGreen = iNextByte(pInFile); |
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197 <a name="l00187"></a>00187 <span class="keywordflow">if</span> (iGreen == EOF) { |
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198 <a name="l00188"></a>00188 vASCII85EncodeByte(pOutFile, EOF); |
|
199 <a name="l00189"></a>00189 <span class="keywordflow">return</span>; |
|
200 <a name="l00190"></a>00190 } |
|
201 <a name="l00191"></a>00191 iRed = iNextByte(pInFile); |
|
202 <a name="l00192"></a>00192 <span class="keywordflow">if</span> (iRed == EOF) { |
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203 <a name="l00193"></a>00193 vASCII85EncodeByte(pOutFile, EOF); |
|
204 <a name="l00194"></a>00194 <span class="keywordflow">return</span>; |
|
205 <a name="l00195"></a>00195 } |
|
206 <a name="l00196"></a>00196 vASCII85EncodeByte(pOutFile, iRed); |
|
207 <a name="l00197"></a>00197 vASCII85EncodeByte(pOutFile, iGreen); |
|
208 <a name="l00198"></a>00198 vASCII85EncodeByte(pOutFile, iBlue); |
|
209 <a name="l00199"></a>00199 } |
|
210 <a name="l00200"></a>00200 (void)tSkipBytes(pInFile, tPadding); |
|
211 <a name="l00201"></a>00201 } |
|
212 <a name="l00202"></a>00202 vASCII85EncodeByte(pOutFile, EOF); |
|
213 <a name="l00203"></a>00203 } <span class="comment">/* end of vDecode24bpp */</span> |
|
214 <a name="l00204"></a>00204 |
|
215 <a name="l00205"></a>00205 <span class="comment">/*</span> |
|
216 <a name="l00206"></a>00206 <span class="comment"> * vDecodeRle4 - decode a RLE compressed 4 bits per pixel image</span> |
|
217 <a name="l00207"></a>00207 <span class="comment"> */</span> |
|
218 <a name="l00208"></a>00208 <span class="keyword">static</span> <span class="keywordtype">void</span> |
|
219 <a name="l00209"></a>00209 vDecodeRle4(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
|
220 <a name="l00210"></a>00210 { |
|
221 <a name="l00211"></a>00211 <span class="keywordtype">int</span> iX, iY, iByte, iTmp, iRunLength, iRun; |
|
222 <a name="l00212"></a>00212 BOOL bEOF, bEOL; |
|
223 <a name="l00213"></a>00213 |
|
224 <a name="l00214"></a>00214 DBG_MSG(<span class="stringliteral">"vDecodeRle4"</span>); |
|
225 <a name="l00215"></a>00215 |
|
226 <a name="l00216"></a>00216 fail(pInFile == NULL); |
|
227 <a name="l00217"></a>00217 fail(pOutFile == NULL); |
|
228 <a name="l00218"></a>00218 fail(pImg == NULL); |
|
229 <a name="l00219"></a>00219 fail(pImg->iColorsUsed < 1 || pImg->iColorsUsed > 16); |
|
230 <a name="l00220"></a>00220 |
|
231 <a name="l00221"></a>00221 DBG_DEC(pImg->iWidth); |
|
232 <a name="l00222"></a>00222 DBG_DEC(pImg->iHeight); |
|
233 <a name="l00223"></a>00223 |
|
234 <a name="l00224"></a>00224 bEOF = FALSE; |
|
235 <a name="l00225"></a>00225 |
|
236 <a name="l00226"></a>00226 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight && !bEOF; iY++) { |
|
237 <a name="l00227"></a>00227 bEOL = FALSE; |
|
238 <a name="l00228"></a>00228 iX = 0; |
|
239 <a name="l00229"></a>00229 <span class="keywordflow">while</span> (!bEOL) { |
|
240 <a name="l00230"></a>00230 iRunLength = iNextByte(pInFile); |
|
241 <a name="l00231"></a>00231 <span class="keywordflow">if</span> (iRunLength == EOF) { |
|
242 <a name="l00232"></a>00232 vASCII85EncodeByte(pOutFile, EOF); |
|
243 <a name="l00233"></a>00233 <span class="keywordflow">return</span>; |
|
244 <a name="l00234"></a>00234 } |
|
245 <a name="l00235"></a>00235 <span class="keywordflow">if</span> (iRunLength != 0) { |
|
246 <a name="l00236"></a>00236 <span class="comment">/*</span> |
|
247 <a name="l00237"></a>00237 <span class="comment"> * Encoded packet:</span> |
|
248 <a name="l00238"></a>00238 <span class="comment"> * RunLength pixels, all the "same" value</span> |
|
249 <a name="l00239"></a>00239 <span class="comment"> */</span> |
|
250 <a name="l00240"></a>00240 iByte = iNextByte(pInFile); |
|
251 <a name="l00241"></a>00241 <span class="keywordflow">if</span> (iByte == EOF) { |
|
252 <a name="l00242"></a>00242 vASCII85EncodeByte(pOutFile, EOF); |
|
253 <a name="l00243"></a>00243 <span class="keywordflow">return</span>; |
|
254 <a name="l00244"></a>00244 } |
|
255 <a name="l00245"></a>00245 <span class="keywordflow">for</span> (iRun = 0; iRun < iRunLength; iRun++) { |
|
256 <a name="l00246"></a>00246 <span class="keywordflow">if</span> (odd(iRun)) { |
|
257 <a name="l00247"></a>00247 iTmp = iByte & 0x0f; |
|
258 <a name="l00248"></a>00248 } <span class="keywordflow">else</span> { |
|
259 <a name="l00249"></a>00249 iTmp = (iByte & 0xf0) / 16; |
|
260 <a name="l00250"></a>00250 } |
|
261 <a name="l00251"></a>00251 <span class="keywordflow">if</span> (iX < pImg->iWidth) { |
|
262 <a name="l00252"></a>00252 vASCII85EncodeByte(pOutFile, iTmp); |
|
263 <a name="l00253"></a>00253 } |
|
264 <a name="l00254"></a>00254 iX++; |
|
265 <a name="l00255"></a>00255 } |
|
266 <a name="l00256"></a>00256 <span class="keywordflow">continue</span>; |
|
267 <a name="l00257"></a>00257 } |
|
268 <a name="l00258"></a>00258 <span class="comment">/* Literal or escape */</span> |
|
269 <a name="l00259"></a>00259 iRunLength = iNextByte(pInFile); |
|
270 <a name="l00260"></a>00260 <span class="keywordflow">if</span> (iRunLength == EOF) { |
|
271 <a name="l00261"></a>00261 vASCII85EncodeByte(pOutFile, EOF); |
|
272 <a name="l00262"></a>00262 <span class="keywordflow">return</span>; |
|
273 <a name="l00263"></a>00263 } |
|
274 <a name="l00264"></a>00264 <span class="keywordflow">if</span> (iRunLength == 0) { <span class="comment">/* End of line escape */</span> |
|
275 <a name="l00265"></a>00265 bEOL = TRUE; |
|
276 <a name="l00266"></a>00266 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iRunLength == 1) { <span class="comment">/* End of file escape */</span> |
|
277 <a name="l00267"></a>00267 bEOF = TRUE; |
|
278 <a name="l00268"></a>00268 bEOL = TRUE; |
|
279 <a name="l00269"></a>00269 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iRunLength == 2) { <span class="comment">/* Delta escape */</span> |
|
280 <a name="l00270"></a>00270 DBG_MSG(<span class="stringliteral">"RLE4: encountered delta escape"</span>); |
|
281 <a name="l00271"></a>00271 bEOF = TRUE; |
|
282 <a name="l00272"></a>00272 bEOL = TRUE; |
|
283 <a name="l00273"></a>00273 } <span class="keywordflow">else</span> { <span class="comment">/* Literal packet */</span> |
|
284 <a name="l00274"></a>00274 iByte = 0; |
|
285 <a name="l00275"></a>00275 <span class="keywordflow">for</span> (iRun = 0; iRun < iRunLength; iRun++) { |
|
286 <a name="l00276"></a>00276 <span class="keywordflow">if</span> (odd(iRun)) { |
|
287 <a name="l00277"></a>00277 iTmp = iByte & 0x0f; |
|
288 <a name="l00278"></a>00278 } <span class="keywordflow">else</span> { |
|
289 <a name="l00279"></a>00279 iByte = iNextByte(pInFile); |
|
290 <a name="l00280"></a>00280 <span class="keywordflow">if</span> (iByte == EOF) { |
|
291 <a name="l00281"></a>00281 vASCII85EncodeByte(pOutFile, EOF); |
|
292 <a name="l00282"></a>00282 <span class="keywordflow">return</span>; |
|
293 <a name="l00283"></a>00283 } |
|
294 <a name="l00284"></a>00284 iTmp = (iByte & 0xf0) / 16; |
|
295 <a name="l00285"></a>00285 } |
|
296 <a name="l00286"></a>00286 <span class="keywordflow">if</span> (iX < pImg->iWidth) { |
|
297 <a name="l00287"></a>00287 vASCII85EncodeByte(pOutFile, iTmp); |
|
298 <a name="l00288"></a>00288 } |
|
299 <a name="l00289"></a>00289 iX++; |
|
300 <a name="l00290"></a>00290 } |
|
301 <a name="l00291"></a>00291 <span class="comment">/* Padding if the number of bytes is odd */</span> |
|
302 <a name="l00292"></a>00292 <span class="keywordflow">if</span> (odd((iRunLength + 1) / 2)) { |
|
303 <a name="l00293"></a>00293 (void)tSkipBytes(pInFile, 1); |
|
304 <a name="l00294"></a>00294 } |
|
305 <a name="l00295"></a>00295 } |
|
306 <a name="l00296"></a>00296 } |
|
307 <a name="l00297"></a>00297 DBG_DEC_C(iX != pImg->iWidth, iX); |
|
308 <a name="l00298"></a>00298 } |
|
309 <a name="l00299"></a>00299 vASCII85EncodeByte(pOutFile, EOF); |
|
310 <a name="l00300"></a>00300 } <span class="comment">/* end of vDecodeRle4 */</span> |
|
311 <a name="l00301"></a>00301 |
|
312 <a name="l00302"></a>00302 <span class="comment">/*</span> |
|
313 <a name="l00303"></a>00303 <span class="comment"> * vDecodeRle8 - decode a RLE compressed 8 bits per pixel image</span> |
|
314 <a name="l00304"></a>00304 <span class="comment"> */</span> |
|
315 <a name="l00305"></a>00305 <span class="keyword">static</span> <span class="keywordtype">void</span> |
|
316 <a name="l00306"></a>00306 vDecodeRle8(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
|
317 <a name="l00307"></a>00307 { |
|
318 <a name="l00308"></a>00308 <span class="keywordtype">int</span> iX, iY, iByte, iRunLength, iRun; |
|
319 <a name="l00309"></a>00309 BOOL bEOF, bEOL; |
|
320 <a name="l00310"></a>00310 |
|
321 <a name="l00311"></a>00311 DBG_MSG(<span class="stringliteral">"vDecodeRle8"</span>); |
|
322 <a name="l00312"></a>00312 |
|
323 <a name="l00313"></a>00313 fail(pInFile == NULL); |
|
324 <a name="l00314"></a>00314 fail(pOutFile == NULL); |
|
325 <a name="l00315"></a>00315 fail(pImg == NULL); |
|
326 <a name="l00316"></a>00316 fail(pImg->iColorsUsed < 1 || pImg->iColorsUsed > 256); |
|
327 <a name="l00317"></a>00317 |
|
328 <a name="l00318"></a>00318 DBG_DEC(pImg->iWidth); |
|
329 <a name="l00319"></a>00319 DBG_DEC(pImg->iHeight); |
|
330 <a name="l00320"></a>00320 |
|
331 <a name="l00321"></a>00321 bEOF = FALSE; |
|
332 <a name="l00322"></a>00322 |
|
333 <a name="l00323"></a>00323 <span class="keywordflow">for</span> (iY = 0; iY < pImg->iHeight && !bEOF; iY++) { |
|
334 <a name="l00324"></a>00324 bEOL = FALSE; |
|
335 <a name="l00325"></a>00325 iX = 0; |
|
336 <a name="l00326"></a>00326 <span class="keywordflow">while</span> (!bEOL) { |
|
337 <a name="l00327"></a>00327 iRunLength = iNextByte(pInFile); |
|
338 <a name="l00328"></a>00328 <span class="keywordflow">if</span> (iRunLength == EOF) { |
|
339 <a name="l00329"></a>00329 vASCII85EncodeByte(pOutFile, EOF); |
|
340 <a name="l00330"></a>00330 <span class="keywordflow">return</span>; |
|
341 <a name="l00331"></a>00331 } |
|
342 <a name="l00332"></a>00332 <span class="keywordflow">if</span> (iRunLength != 0) { |
|
343 <a name="l00333"></a>00333 <span class="comment">/*</span> |
|
344 <a name="l00334"></a>00334 <span class="comment"> * Encoded packet:</span> |
|
345 <a name="l00335"></a>00335 <span class="comment"> * RunLength pixels, all the same value</span> |
|
346 <a name="l00336"></a>00336 <span class="comment"> */</span> |
|
347 <a name="l00337"></a>00337 iByte = iNextByte(pInFile); |
|
348 <a name="l00338"></a>00338 <span class="keywordflow">if</span> (iByte == EOF) { |
|
349 <a name="l00339"></a>00339 vASCII85EncodeByte(pOutFile, EOF); |
|
350 <a name="l00340"></a>00340 <span class="keywordflow">return</span>; |
|
351 <a name="l00341"></a>00341 } |
|
352 <a name="l00342"></a>00342 <span class="keywordflow">for</span> (iRun = 0; iRun < iRunLength; iRun++) { |
|
353 <a name="l00343"></a>00343 <span class="keywordflow">if</span> (iX < pImg->iWidth) { |
|
354 <a name="l00344"></a>00344 vASCII85EncodeByte(pOutFile, iByte); |
|
355 <a name="l00345"></a>00345 } |
|
356 <a name="l00346"></a>00346 iX++; |
|
357 <a name="l00347"></a>00347 } |
|
358 <a name="l00348"></a>00348 <span class="keywordflow">continue</span>; |
|
359 <a name="l00349"></a>00349 } |
|
360 <a name="l00350"></a>00350 <span class="comment">/* Literal or escape */</span> |
|
361 <a name="l00351"></a>00351 iRunLength = iNextByte(pInFile); |
|
362 <a name="l00352"></a>00352 <span class="keywordflow">if</span> (iRunLength == EOF) { |
|
363 <a name="l00353"></a>00353 vASCII85EncodeByte(pOutFile, EOF); |
|
364 <a name="l00354"></a>00354 <span class="keywordflow">return</span>; |
|
365 <a name="l00355"></a>00355 } |
|
366 <a name="l00356"></a>00356 <span class="keywordflow">if</span> (iRunLength == 0) { <span class="comment">/* End of line escape */</span> |
|
367 <a name="l00357"></a>00357 bEOL = TRUE; |
|
368 <a name="l00358"></a>00358 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iRunLength == 1) { <span class="comment">/* End of file escape */</span> |
|
369 <a name="l00359"></a>00359 bEOF = TRUE; |
|
370 <a name="l00360"></a>00360 bEOL = TRUE; |
|
371 <a name="l00361"></a>00361 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iRunLength == 2) { <span class="comment">/* Delta escape */</span> |
|
372 <a name="l00362"></a>00362 DBG_MSG(<span class="stringliteral">"RLE8: encountered delta escape"</span>); |
|
373 <a name="l00363"></a>00363 bEOF = TRUE; |
|
374 <a name="l00364"></a>00364 bEOL = TRUE; |
|
375 <a name="l00365"></a>00365 } <span class="keywordflow">else</span> { <span class="comment">/* Literal packet */</span> |
|
376 <a name="l00366"></a>00366 <span class="keywordflow">for</span> (iRun = 0; iRun < iRunLength; iRun++) { |
|
377 <a name="l00367"></a>00367 iByte = iNextByte(pInFile); |
|
378 <a name="l00368"></a>00368 <span class="keywordflow">if</span> (iByte == EOF) { |
|
379 <a name="l00369"></a>00369 vASCII85EncodeByte(pOutFile, EOF); |
|
380 <a name="l00370"></a>00370 <span class="keywordflow">return</span>; |
|
381 <a name="l00371"></a>00371 } |
|
382 <a name="l00372"></a>00372 <span class="keywordflow">if</span> (iX < pImg->iWidth) { |
|
383 <a name="l00373"></a>00373 vASCII85EncodeByte(pOutFile, iByte); |
|
384 <a name="l00374"></a>00374 } |
|
385 <a name="l00375"></a>00375 iX++; |
|
386 <a name="l00376"></a>00376 } |
|
387 <a name="l00377"></a>00377 <span class="comment">/* Padding if the number of bytes is odd */</span> |
|
388 <a name="l00378"></a>00378 <span class="keywordflow">if</span> (odd(iRunLength)) { |
|
389 <a name="l00379"></a>00379 (void)tSkipBytes(pInFile, 1); |
|
390 <a name="l00380"></a>00380 } |
|
391 <a name="l00381"></a>00381 } |
|
392 <a name="l00382"></a>00382 } |
|
393 <a name="l00383"></a>00383 DBG_DEC_C(iX != pImg->iWidth, iX); |
|
394 <a name="l00384"></a>00384 } |
|
395 <a name="l00385"></a>00385 vASCII85EncodeByte(pOutFile, EOF); |
|
396 <a name="l00386"></a>00386 } <span class="comment">/* end of vDecodeRle8 */</span> |
|
397 <a name="l00387"></a>00387 |
|
398 <a name="l00388"></a>00388 <span class="comment">/*</span> |
|
399 <a name="l00389"></a>00389 <span class="comment"> * vDecodeDIB - decode a dib picture</span> |
|
400 <a name="l00390"></a>00390 <span class="comment"> */</span> |
|
401 <a name="l00391"></a>00391 <span class="keyword">static</span> <span class="keywordtype">void</span> |
|
402 <a name="l00392"></a>00392 vDecodeDIB(FILE *pInFile, FILE *pOutFile, <span class="keyword">const</span> imagedata_type *pImg) |
|
403 <a name="l00393"></a>00393 { |
|
404 <a name="l00394"></a>00394 <span class="keywordtype">size_t</span> tHeaderSize; |
|
405 <a name="l00395"></a>00395 |
|
406 <a name="l00396"></a>00396 fail(pInFile == NULL); |
|
407 <a name="l00397"></a>00397 fail(pOutFile == NULL); |
|
408 <a name="l00398"></a>00398 fail(pImg == NULL); |
|
409 <a name="l00399"></a>00399 |
|
410 <a name="l00400"></a>00400 <span class="comment">/* Skip the bitmap info header */</span> |
|
411 <a name="l00401"></a>00401 tHeaderSize = (size_t)ulNextLong(pInFile); |
|
412 <a name="l00402"></a>00402 (void)tSkipBytes(pInFile, tHeaderSize - 4); |
|
413 <a name="l00403"></a>00403 <span class="comment">/* Skip the colortable */</span> |
|
414 <a name="l00404"></a>00404 <span class="keywordflow">if</span> (pImg->uiBitsPerComponent <= 8) { |
|
415 <a name="l00405"></a>00405 (void)tSkipBytes(pInFile, |
|
416 <a name="l00406"></a>00406 (<span class="keywordtype">size_t</span>)(pImg->iColorsUsed * |
|
417 <a name="l00407"></a>00407 ((tHeaderSize > 12) ? 4 : 3))); |
|
418 <a name="l00408"></a>00408 } |
|
419 <a name="l00409"></a>00409 |
|
420 <a name="l00410"></a>00410 <span class="keywordflow">switch</span> (pImg->uiBitsPerComponent) { |
|
421 <a name="l00411"></a>00411 <span class="keywordflow">case</span> 1: |
|
422 <a name="l00412"></a>00412 fail(pImg->eCompression != compression_none); |
|
423 <a name="l00413"></a>00413 vDecode1bpp(pInFile, pOutFile, pImg); |
|
424 <a name="l00414"></a>00414 <span class="keywordflow">break</span>; |
|
425 <a name="l00415"></a>00415 <span class="keywordflow">case</span> 4: |
|
426 <a name="l00416"></a>00416 fail(pImg->eCompression != compression_none && |
|
427 <a name="l00417"></a>00417 pImg->eCompression != compression_rle4); |
|
428 <a name="l00418"></a>00418 <span class="keywordflow">if</span> (pImg->eCompression == compression_rle4) { |
|
429 <a name="l00419"></a>00419 vDecodeRle4(pInFile, pOutFile, pImg); |
|
430 <a name="l00420"></a>00420 } <span class="keywordflow">else</span> { |
|
431 <a name="l00421"></a>00421 vDecode4bpp(pInFile, pOutFile, pImg); |
|
432 <a name="l00422"></a>00422 } |
|
433 <a name="l00423"></a>00423 <span class="keywordflow">break</span>; |
|
434 <a name="l00424"></a>00424 <span class="keywordflow">case</span> 8: |
|
435 <a name="l00425"></a>00425 fail(pImg->eCompression != compression_none && |
|
436 <a name="l00426"></a>00426 pImg->eCompression != compression_rle8); |
|
437 <a name="l00427"></a>00427 <span class="keywordflow">if</span> (pImg->eCompression == compression_rle8) { |
|
438 <a name="l00428"></a>00428 vDecodeRle8(pInFile, pOutFile, pImg); |
|
439 <a name="l00429"></a>00429 } <span class="keywordflow">else</span> { |
|
440 <a name="l00430"></a>00430 vDecode8bpp(pInFile, pOutFile, pImg); |
|
441 <a name="l00431"></a>00431 } |
|
442 <a name="l00432"></a>00432 <span class="keywordflow">break</span>; |
|
443 <a name="l00433"></a>00433 <span class="keywordflow">case</span> 24: |
|
444 <a name="l00434"></a>00434 fail(pImg->eCompression != compression_none); |
|
445 <a name="l00435"></a>00435 vDecode24bpp(pInFile, pOutFile, pImg); |
|
446 <a name="l00436"></a>00436 <span class="keywordflow">break</span>; |
|
447 <a name="l00437"></a>00437 <span class="keywordflow">default</span>: |
|
448 <a name="l00438"></a>00438 DBG_DEC(pImg->uiBitsPerComponent); |
|
449 <a name="l00439"></a>00439 <span class="keywordflow">break</span>; |
|
450 <a name="l00440"></a>00440 } |
|
451 <a name="l00441"></a>00441 } <span class="comment">/* end of vDecodeDIB */</span> |
|
452 <a name="l00442"></a>00442 |
|
453 <a name="l00443"></a>00443 <span class="preprocessor">#if defined(DEBUG)</span> |
|
454 <a name="l00444"></a>00444 <span class="preprocessor"></span><span class="comment">/*</span> |
|
455 <a name="l00445"></a>00445 <span class="comment"> * vCopy2File</span> |
|
456 <a name="l00446"></a>00446 <span class="comment"> */</span> |
|
457 <a name="l00447"></a>00447 <span class="keyword">static</span> <span class="keywordtype">void</span> |
|
458 <a name="l00448"></a>00448 vCopy2File(FILE *pInFile, ULONG ulFileOffset, <span class="keywordtype">size_t</span> tPictureLen) |
|
459 <a name="l00449"></a>00449 { |
|
460 <a name="l00450"></a>00450 <span class="keyword">static</span> <span class="keywordtype">int</span> iPicCounter = 0; |
|
461 <a name="l00451"></a>00451 FILE *pOutFile; |
|
462 <a name="l00452"></a>00452 <span class="keywordtype">size_t</span> tIndex; |
|
463 <a name="l00453"></a>00453 <span class="keywordtype">int</span> iTmp; |
|
464 <a name="l00454"></a>00454 <span class="keywordtype">char</span> szFilename[30]; |
|
465 <a name="l00455"></a>00455 |
|
466 <a name="l00456"></a>00456 <span class="keywordflow">if</span> (!bSetDataOffset(pInFile, ulFileOffset)) { |
|
467 <a name="l00457"></a>00457 <span class="keywordflow">return</span>; |
|
468 <a name="l00458"></a>00458 } |
|
469 <a name="l00459"></a>00459 |
|
470 <a name="l00460"></a>00460 sprintf(szFilename, <span class="stringliteral">"/tmp/pic/pic%04d.bmp"</span>, ++iPicCounter); |
|
471 <a name="l00461"></a>00461 pOutFile = fopen(szFilename, <span class="stringliteral">"wb"</span>); |
|
472 <a name="l00462"></a>00462 <span class="keywordflow">if</span> (pOutFile == NULL) { |
|
473 <a name="l00463"></a>00463 <span class="keywordflow">return</span>; |
|
474 <a name="l00464"></a>00464 } |
|
475 <a name="l00465"></a>00465 <span class="comment">/* Turn a dib into a bmp by adding a fake 14 byte header */</span> |
|
476 <a name="l00466"></a>00466 (void)putc(<span class="charliteral">'B'</span>, pOutFile); |
|
477 <a name="l00467"></a>00467 (void)putc(<span class="charliteral">'M'</span>, pOutFile); |
|
478 <a name="l00468"></a>00468 <span class="keywordflow">for</span> (iTmp = 0; iTmp < 12; iTmp++) { |
|
479 <a name="l00469"></a>00469 <span class="keywordflow">if</span> (putc(0, pOutFile) == EOF) { |
|
480 <a name="l00470"></a>00470 <span class="keywordflow">break</span>; |
|
481 <a name="l00471"></a>00471 } |
|
482 <a name="l00472"></a>00472 } |
|
483 <a name="l00473"></a>00473 <span class="keywordflow">for</span> (tIndex = 0; tIndex < tPictureLen; tIndex++) { |
|
484 <a name="l00474"></a>00474 iTmp = iNextByte(pInFile); |
|
485 <a name="l00475"></a>00475 <span class="keywordflow">if</span> (putc(iTmp, pOutFile) == EOF) { |
|
486 <a name="l00476"></a>00476 <span class="keywordflow">break</span>; |
|
487 <a name="l00477"></a>00477 } |
|
488 <a name="l00478"></a>00478 } |
|
489 <a name="l00479"></a>00479 (void)fclose(pOutFile); |
|
490 <a name="l00480"></a>00480 } <span class="comment">/* end of vCopy2File */</span> |
|
491 <a name="l00481"></a>00481 <span class="preprocessor">#endif </span><span class="comment">/* DEBUG */</span> |
|
492 <a name="l00482"></a>00482 |
|
493 <a name="l00483"></a>00483 <span class="comment">/*</span> |
|
494 <a name="l00484"></a>00484 <span class="comment"> * bTranslateDIB - translate a DIB picture</span> |
|
495 <a name="l00485"></a>00485 <span class="comment"> *</span> |
|
496 <a name="l00486"></a>00486 <span class="comment"> * This function translates a picture from dib to eps</span> |
|
497 <a name="l00487"></a>00487 <span class="comment"> *</span> |
|
498 <a name="l00488"></a>00488 <span class="comment"> * return TRUE when sucessful, otherwise FALSE</span> |
|
499 <a name="l00489"></a>00489 <span class="comment"> */</span> |
|
500 <a name="l00490"></a>00490 BOOL |
|
501 <a name="l00491"></a>00491 bTranslateDIB(diagram_type *pDiag, FILE *pInFile, |
|
502 <a name="l00492"></a>00492 ULONG ulFileOffset, <span class="keyword">const</span> imagedata_type *pImg) |
|
503 <a name="l00493"></a>00493 { |
|
504 <a name="l00494"></a>00494 <span class="preprocessor">#if defined(DEBUG)</span> |
|
505 <a name="l00495"></a>00495 <span class="preprocessor"></span> fail(pImg->tPosition > pImg->tLength); |
|
506 <a name="l00496"></a>00496 vCopy2File(pInFile, ulFileOffset, pImg->tLength - pImg->tPosition); |
|
507 <a name="l00497"></a>00497 <span class="preprocessor">#endif </span><span class="comment">/* DEBUG */</span> |
|
508 <a name="l00498"></a>00498 |
|
509 <a name="l00499"></a>00499 <span class="comment">/* Seek to start position of DIB data */</span> |
|
510 <a name="l00500"></a>00500 <span class="keywordflow">if</span> (!bSetDataOffset(pInFile, ulFileOffset)) { |
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511 <a name="l00501"></a>00501 <span class="keywordflow">return</span> FALSE; |
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512 <a name="l00502"></a>00502 } |
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513 <a name="l00503"></a>00503 |
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514 <a name="l00504"></a>00504 vImagePrologue(pDiag, pImg); |
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515 <a name="l00505"></a>00505 vDecodeDIB(pInFile, pDiag->pOutFile, pImg); |
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516 <a name="l00506"></a>00506 vImageEpilogue(pDiag); |
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517 <a name="l00507"></a>00507 |
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518 <a name="l00508"></a>00508 <span class="keywordflow">return</span> TRUE; |
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519 <a name="l00509"></a>00509 } <span class="comment">/* end of bTranslateDIB */</span> |
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520 </pre></div></div> |
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521 <hr size="1"/><address style="text-align: right;"><small>Generated by |
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522 <a href="http://www.doxygen.org/index.html"> |
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523 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> |
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524 </body> |
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525 </html> |
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