1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
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5 | #include <string.h> |
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6 | #include <setjmp.h> |
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7 | |
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8 | #include <magic.h> |
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9 | |
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10 | #include <jpeglib.h> |
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11 | #include <glib.h> |
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12 | #include <gtk/gtk.h> |
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13 | #include <gdk-pixbuf/gdk-pixbuf.h> |
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14 | |
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15 | #include <gperl.h> |
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16 | #include <gtk2perl.h> |
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17 | |
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18 | #define IW 80 /* MUST match Schnauer.pm! */ |
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19 | #define IH 60 /* MUST match Schnauer.pm! */ |
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20 | |
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21 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
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22 | |
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23 | #define LINELENGTH 240 |
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24 | |
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25 | #define ELLIPSIS "\xe2\x80\xa6" |
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26 | |
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27 | struct jpg_err_mgr |
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28 | { |
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29 | struct jpeg_error_mgr err; |
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30 | jmp_buf setjmp_buffer; |
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31 | }; |
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32 | |
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33 | static void |
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34 | cv_error_exit (j_common_ptr cinfo) |
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35 | { |
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36 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
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37 | } |
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38 | |
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39 | static void |
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40 | cv_error_output (j_common_ptr cinfo) |
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41 | { |
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42 | return; |
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43 | } |
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44 | |
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45 | static void |
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46 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
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47 | unsigned int *h, unsigned int *s, unsigned int *v) |
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48 | { |
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49 | unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; |
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50 | unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; |
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51 | unsigned int delta = mx - mn; |
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52 | |
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53 | *v = mx; |
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54 | |
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55 | *s = mx ? delta * 255 / mx : 0; |
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56 | |
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57 | if (delta == 0) |
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58 | *h = 0; |
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59 | else |
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60 | { |
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61 | if (r == mx) |
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62 | *h = ((int)g - (int)b) * 255 / (int)(delta * 3); |
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63 | else if (g == mx) |
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64 | *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; |
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65 | else if (b == mx) |
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66 | *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; |
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67 | |
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68 | *h &= 255; |
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69 | } |
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70 | } |
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71 | |
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72 | static guint32 a85_val; |
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73 | static guint a85_cnt; |
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74 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
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75 | |
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76 | static void |
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77 | a85_init (void) |
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78 | { |
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79 | a85_cnt = 4; |
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80 | a85_ptr = a85_buf; |
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81 | } |
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82 | |
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83 | static void |
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84 | a85_push (PerlIO *fp, guchar c) |
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85 | { |
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86 | a85_val = a85_val << 8 | c; |
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87 | |
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88 | if (!--a85_cnt) |
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89 | { |
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90 | a85_cnt = 4; |
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91 | if (a85_val) |
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92 | { |
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93 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
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94 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
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95 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
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96 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
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97 | a85_ptr[0] = (a85_val ) + 33; |
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98 | |
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99 | a85_ptr += 5; |
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100 | } |
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101 | else |
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102 | *a85_ptr++ = 'z'; |
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103 | |
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104 | if (a85_ptr >= a85_buf + sizeof (a85_buf) - 7) |
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105 | { |
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106 | *a85_ptr++ = '\n'; |
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107 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
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108 | a85_ptr = a85_buf; |
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109 | } |
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110 | } |
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111 | |
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112 | } |
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113 | |
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114 | static void |
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115 | a85_finish (PerlIO *fp) |
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116 | { |
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117 | while (a85_cnt != 4) |
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118 | a85_push (fp, 0); |
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119 | |
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120 | *a85_ptr++ = '~'; // probably buggy end-marker |
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121 | *a85_ptr++ = '>'; // probably buggy end-marker |
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122 | *a85_ptr++ = '\n'; |
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123 | |
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124 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
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125 | } |
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126 | |
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127 | ///////////////////////////////////////////////////////////////////////////// |
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128 | |
5 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow |
129 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
6 | |
130 | |
7 | PROTOTYPES: ENABLE |
131 | PROTOTYPES: ENABLE |
8 | |
132 | |
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133 | # missing function in perl. really :) |
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134 | int |
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135 | common_prefix_length (a, b) |
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136 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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137 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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138 | CODE: |
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139 | RETVAL = 0; |
9 | |
140 | |
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141 | while (*a == *b && *a) |
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142 | { |
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143 | RETVAL += (*a & 0xc0) != 0x80; |
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144 | a++, b++; |
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145 | } |
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146 | |
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147 | OUTPUT: |
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148 | RETVAL |
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149 | |
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150 | const char * |
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151 | magic (const char *path) |
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152 | CODE: |
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153 | { |
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154 | static magic_t cookie; |
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155 | |
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156 | if (!cookie) |
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157 | { |
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158 | cookie = magic_open (MAGIC_MIME); |
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159 | |
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160 | if (cookie) |
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161 | magic_load (cookie, 0); |
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162 | else |
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163 | XSRETURN_UNDEF; |
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164 | } |
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165 | |
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166 | RETVAL = magic_file (cookie, path); |
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167 | } |
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168 | OUTPUT: |
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169 | RETVAL |
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170 | |
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171 | # missing in Gtk2 perl module |
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172 | |
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173 | gboolean |
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174 | gdk_net_wm_supports (GdkAtom property) |
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175 | CODE: |
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176 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
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177 | RETVAL = gdk_net_wm_supports (property); |
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178 | #else |
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179 | RETVAL = 0; |
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180 | #endif |
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181 | OUTPUT: |
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182 | RETVAL |
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183 | |
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184 | GdkPixbuf_noinc * |
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185 | dealpha_expose (GdkPixbuf *pb) |
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186 | CODE: |
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187 | { |
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188 | int w = gdk_pixbuf_get_width (pb); |
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189 | int h = gdk_pixbuf_get_height (pb); |
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190 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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191 | int x, y, i; |
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192 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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193 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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194 | |
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195 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
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196 | |
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197 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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198 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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199 | |
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200 | for (x = 0; x < w; x++) |
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201 | for (y = 0; y < h; y++) |
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202 | for (i = 0; i < 3; i++) |
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203 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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204 | } |
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205 | OUTPUT: |
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206 | RETVAL |
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207 | |
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208 | GdkPixbuf_noinc * |
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209 | rotate (GdkPixbuf *pb, int angle) |
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210 | CODE: |
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211 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
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212 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
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213 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
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214 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
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215 | : angle); |
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216 | OUTPUT: |
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217 | RETVAL |
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218 | |
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219 | GdkPixbuf_noinc * |
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220 | load_jpeg (SV *path, int thumbnail=0) |
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221 | CODE: |
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222 | { |
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223 | struct jpeg_decompress_struct cinfo; |
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224 | struct jpg_err_mgr jerr; |
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225 | guchar *data; |
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226 | int rs; |
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227 | FILE *fp; |
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228 | volatile GdkPixbuf *pb = 0; |
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229 | |
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230 | RETVAL = 0; |
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231 | |
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232 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
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233 | |
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234 | if (!fp) |
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235 | XSRETURN_UNDEF; |
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236 | |
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237 | cinfo.err = jpeg_std_error (&jerr.err); |
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238 | |
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239 | jerr.err.error_exit = cv_error_exit; |
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240 | jerr.err.output_message = cv_error_output; |
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241 | |
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242 | if ((rs = setjmp (jerr.setjmp_buffer))) |
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243 | { |
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244 | fclose (fp); |
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245 | jpeg_destroy_decompress (&cinfo); |
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246 | |
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247 | if (pb) |
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248 | g_object_unref ((gpointer)pb); |
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249 | |
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250 | XSRETURN_UNDEF; |
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251 | } |
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252 | |
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253 | jpeg_create_decompress (&cinfo); |
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254 | |
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255 | jpeg_stdio_src (&cinfo, fp); |
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256 | jpeg_read_header (&cinfo, TRUE); |
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257 | |
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258 | cinfo.dct_method = JDCT_DEFAULT; |
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259 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
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260 | cinfo.do_block_smoothing = FALSE; |
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261 | cinfo.out_color_space = JCS_RGB; |
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262 | cinfo.quantize_colors = FALSE; |
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263 | |
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264 | cinfo.scale_num = 1; |
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265 | cinfo.scale_denom = 1; |
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266 | |
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267 | jpeg_calc_output_dimensions (&cinfo); |
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268 | |
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269 | if (thumbnail) |
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270 | { |
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271 | cinfo.dct_method = JDCT_FASTEST; |
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272 | cinfo.do_fancy_upsampling = FALSE; |
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273 | |
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274 | while (cinfo.scale_denom < 8 |
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275 | && cinfo.output_width >= IW*4 |
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276 | && cinfo.output_height >= IH*4) |
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277 | { |
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278 | cinfo.scale_denom <<= 1; |
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279 | jpeg_calc_output_dimensions (&cinfo); |
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280 | } |
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281 | } |
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282 | |
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283 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
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284 | if (!RETVAL) |
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285 | longjmp (jerr.setjmp_buffer, 2); |
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286 | |
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287 | data = gdk_pixbuf_get_pixels (RETVAL); |
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288 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
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289 | |
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290 | if (cinfo.output_components != 3) |
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291 | longjmp (jerr.setjmp_buffer, 3); |
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292 | |
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293 | jpeg_start_decompress (&cinfo); |
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294 | |
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295 | while (cinfo.output_scanline < cinfo.output_height) |
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296 | { |
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297 | int remaining = cinfo.output_height - cinfo.output_scanline; |
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298 | JSAMPROW rp[4]; |
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299 | |
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300 | rp [0] = data + cinfo.output_scanline * rs; |
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301 | rp [1] = (guchar *)rp [0] + rs; |
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302 | rp [2] = (guchar *)rp [1] + rs; |
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303 | rp [3] = (guchar *)rp [2] + rs; |
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304 | |
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305 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
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306 | } |
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307 | |
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308 | jpeg_finish_decompress (&cinfo); |
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309 | fclose (fp); |
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310 | jpeg_destroy_decompress (&cinfo); |
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311 | } |
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312 | OUTPUT: |
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313 | RETVAL |
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314 | |
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315 | ############################################################################# |
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316 | |
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317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
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318 | |
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319 | SV * |
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320 | foldcase (SV *pathsv) |
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321 | PROTOTYPE: $ |
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322 | CODE: |
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323 | { |
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324 | STRLEN plen; |
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325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
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326 | U8 *pend = path + plen; |
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327 | U8 dst [plen * 6 * 3], *dstp = dst; |
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328 | |
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329 | while (path < pend) |
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330 | { |
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331 | U8 ch = *path; |
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332 | |
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333 | if (ch >= 'a' && ch <= 'z') |
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334 | *dstp++ = *path++; |
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335 | else if (ch >= '0' && ch <= '9') |
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336 | { |
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337 | STRLEN el, nl = 0; |
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338 | while (*path >= '0' && *path <= '9' && path < pend) |
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339 | path++, nl++; |
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340 | |
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341 | for (el = nl; el < 6; el++) |
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342 | *dstp++ = '0'; |
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343 | |
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344 | memcpy (dstp, path - nl, nl); |
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345 | dstp += nl; |
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346 | } |
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347 | else |
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348 | { |
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349 | STRLEN cl; |
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350 | to_utf8_fold (path, dstp, &cl); |
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351 | dstp += cl; |
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352 | path += is_utf8_char (path); |
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353 | } |
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354 | } |
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355 | |
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356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
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357 | } |
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358 | OUTPUT: |
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359 | RETVAL |
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360 | |
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361 | GdkPixbuf_noinc * |
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362 | p7_to_pb (int w, int h, SV *src_sv) |
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363 | PROTOTYPE: @ |
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364 | CODE: |
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365 | { |
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366 | int x, y; |
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367 | guchar *dst, *d; |
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368 | int dstr; |
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369 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
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370 | |
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371 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
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372 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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373 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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374 | |
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375 | for (y = 0; y < h; y++) |
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376 | for (d = dst + y * dstr, x = 0; x < w; x++) |
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377 | { |
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378 | *d++ = (((*src >> 5) & 7) * 255 + 4) / 7; |
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379 | *d++ = (((*src >> 2) & 7) * 255 + 4) / 7; |
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380 | *d++ = (((*src >> 0) & 3) * 255 + 2) / 3; |
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381 | |
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382 | src++; |
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383 | } |
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384 | } |
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385 | OUTPUT: |
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386 | RETVAL |
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387 | |
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388 | ############################################################################# |
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389 | |
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390 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
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391 | |
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392 | void |
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393 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
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394 | CODE: |
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395 | { |
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396 | int w = gdk_pixbuf_get_width (pb); |
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397 | int h = gdk_pixbuf_get_height (pb); |
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398 | int x, y, i; |
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399 | guchar *dst; |
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400 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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401 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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402 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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403 | |
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404 | a85_init (); |
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405 | |
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406 | for (y = 0; y < h; y++) |
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407 | for (x = 0; x < w; x++) |
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408 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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409 | a85_push (fp, src [x * bpp + y * sstr + i]); |
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410 | |
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411 | a85_finish (fp); |
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412 | } |
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413 | |
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414 | void |
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415 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
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416 | CODE: |
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417 | { |
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418 | int w = gdk_pixbuf_get_width (pb); |
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419 | int h = gdk_pixbuf_get_height (pb); |
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420 | int x, y, i; |
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421 | guchar *dst; |
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422 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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423 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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424 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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425 | |
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426 | for (y = 0; y < h; y++) |
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427 | for (x = 0; x < w; x++) |
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428 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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429 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
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430 | } |
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431 | |
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432 | ############################################################################# |
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433 | |
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434 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
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435 | |
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436 | SV * |
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437 | pb_to_hv84 (GdkPixbuf *pb) |
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438 | CODE: |
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439 | { |
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440 | int w = gdk_pixbuf_get_width (pb); |
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441 | int h = gdk_pixbuf_get_height (pb); |
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442 | int x, y; |
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443 | guchar *dst; |
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444 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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445 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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446 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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447 | |
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448 | RETVAL = newSV (6 * 8 * 12 / 8); |
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449 | SvPOK_only (RETVAL); |
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450 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
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451 | |
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452 | dst = (guchar *)SvPVX (RETVAL); |
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453 | |
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454 | /* some primitive error distribution + random dithering */ |
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455 | |
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456 | for (y = 0; y < h; y++) |
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457 | { |
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458 | guchar *p = src + y * sstr; |
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459 | |
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460 | for (x = 0; x < w; x += 2) |
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461 | { |
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462 | unsigned int r, g, b, h, s, v, H, V1, V2; |
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463 | |
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464 | if (bpp == 3) |
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465 | r = *p++, g = *p++, b = *p++; |
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466 | else if (bpp == 1) |
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467 | r = g = b = *p++; |
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468 | else |
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469 | abort (); |
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470 | |
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471 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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472 | |
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473 | H = (h * 15 / 255) << 4; |
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474 | V1 = v; |
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475 | |
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476 | if (bpp == 3) |
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477 | r = *p++, g = *p++, b = *p++; |
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478 | else if (bpp == 1) |
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479 | r = g = b = *p++; |
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480 | else |
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481 | abort (); |
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482 | |
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483 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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484 | |
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485 | H |= h * 15 / 255; |
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486 | V2 = v; |
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487 | |
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488 | *dst++ = H; |
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489 | *dst++ = V1; |
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490 | *dst++ = V2; |
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491 | } |
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492 | } |
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493 | } |
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494 | OUTPUT: |
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495 | RETVAL |
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496 | |
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497 | SV * |
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498 | hv84_to_av (unsigned char *hv84) |
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499 | CODE: |
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500 | { |
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501 | int i = 72 / 3; |
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502 | AV *av = newAV (); |
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503 | |
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504 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
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505 | while (i--) |
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506 | { |
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507 | int h = *hv84++; |
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508 | int v1 = *hv84++; |
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509 | int v2 = *hv84++; |
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510 | |
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511 | av_push (av, newSViv (v1)); |
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512 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
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513 | av_push (av, newSViv (v2)); |
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514 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
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515 | } |
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516 | } |
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517 | OUTPUT: |
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518 | RETVAL |
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519 | |
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520 | ############################################################################# |
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521 | |
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522 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
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523 | |
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524 | SV * |
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525 | make_histograms (SV *ar) |
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526 | CODE: |
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527 | { |
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528 | int i; |
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529 | AV *av, *result; |
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530 | |
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531 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
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532 | croak ("Not an array ref as first argument to make_histogram"); |
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533 | |
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534 | av = (AV *) SvRV (ar); |
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535 | result = newAV (); |
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536 | |
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537 | for (i = 0; i <= av_len (av); ++i) |
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538 | { |
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539 | const int HISTSIZE = 64; |
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540 | |
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541 | int j; |
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542 | SV *sv = *av_fetch (av, i, 1); |
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543 | STRLEN len; |
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544 | char *buf = SvPVbyte (sv, len); |
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545 | |
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546 | int tmphist[HISTSIZE]; |
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547 | float *hist; |
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548 | |
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549 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
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550 | SvPOK_on (histsv); |
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551 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
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552 | hist = (float *)SvPVX (histsv); |
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553 | |
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554 | Zero (tmphist, sizeof (tmphist), char); |
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555 | |
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556 | for (j = len; j--; ) |
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557 | { |
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558 | unsigned int idx |
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559 | = ((*buf & 0xc0) >> 2) |
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560 | | ((*buf & 0x18) >> 1) |
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561 | | (*buf & 0x03); |
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562 | |
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563 | ++tmphist[idx]; |
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564 | ++buf; |
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565 | } |
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566 | |
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567 | for (j = 0; j < HISTSIZE; ++j) |
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568 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
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569 | |
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570 | av_push (result, histsv); |
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571 | } |
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572 | |
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573 | RETVAL = newRV_noinc ((SV *)result); |
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574 | } |
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575 | OUTPUT: |
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576 | RETVAL |
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577 | |
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578 | |