| 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 | #include <math.h> |
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8 | |
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9 | #include <magic.h> |
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10 | |
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11 | #include <jpeglib.h> |
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12 | #include <glib.h> |
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13 | #include <gtk/gtk.h> |
| 5 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
| 6 | |
15 | |
| 7 | #include <gperl.h> |
16 | #include <gperl.h> |
| 8 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
| 9 | |
18 | |
| 10 | #define IW 80 |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
|
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20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
| 11 | |
21 | |
| 12 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
| 13 | |
23 | |
| 14 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
| 15 | |
25 | |
| 16 | #define ELLIPSIS "\xe2\x80\xa6" |
26 | #define ELLIPSIS "\xe2\x80\xa6" |
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27 | |
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28 | struct jpg_err_mgr |
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29 | { |
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30 | struct jpeg_error_mgr err; |
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31 | jmp_buf setjmp_buffer; |
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32 | }; |
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33 | |
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34 | static void |
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35 | cv_error_exit (j_common_ptr cinfo) |
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36 | { |
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37 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
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38 | } |
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39 | |
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40 | static void |
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41 | cv_error_output (j_common_ptr cinfo) |
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42 | { |
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43 | return; |
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44 | } |
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45 | |
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46 | static void |
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47 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
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48 | unsigned int *h, unsigned int *s, unsigned int *v) |
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49 | { |
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50 | unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; |
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51 | unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; |
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52 | unsigned int delta = mx - mn; |
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53 | |
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54 | *v = mx; |
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55 | |
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56 | *s = mx ? delta * 255 / mx : 0; |
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57 | |
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58 | if (delta == 0) |
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59 | *h = 0; |
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60 | else |
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61 | { |
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62 | if (r == mx) |
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63 | *h = ((int)g - (int)b) * 255 / (int)(delta * 3); |
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64 | else if (g == mx) |
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65 | *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; |
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66 | else if (b == mx) |
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67 | *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; |
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68 | |
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69 | *h &= 255; |
|
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70 | } |
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71 | } |
| 17 | |
72 | |
| 18 | static guint32 a85_val; |
73 | static guint32 a85_val; |
| 19 | static guint a85_cnt; |
74 | static guint a85_cnt; |
| 20 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
75 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
| 21 | |
76 | |
| … | |
… | |
| 68 | *a85_ptr++ = '\n'; |
123 | *a85_ptr++ = '\n'; |
| 69 | |
124 | |
| 70 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
125 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
| 71 | } |
126 | } |
| 72 | |
127 | |
| 73 | static void |
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| 74 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
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| 75 | unsigned int *h, unsigned int *s, unsigned int *v) |
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| 76 | { |
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| 77 | unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; |
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| 78 | unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; |
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| 79 | unsigned int delta = mx - mn; |
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| 80 | |
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| 81 | *v = mx; |
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| 82 | |
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| 83 | *s = mx ? delta * 255 / mx : 0; |
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| 84 | |
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| 85 | if (delta == 0) |
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| 86 | *h = 0; |
|
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| 87 | else |
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| 88 | { |
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| 89 | if (r == mx) |
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| 90 | *h = ((int)g - (int)b) * 255 / (int)(delta * 3); |
|
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| 91 | else if (g == mx) |
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| 92 | *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; |
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| 93 | else if (b == mx) |
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| 94 | *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; |
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| 95 | |
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| 96 | *h &= 255; |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | ///////////////////////////////////////////////////////////////////////////// |
128 | ///////////////////////////////////////////////////////////////////////////// |
| 101 | |
129 | |
| 102 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
130 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
| 103 | |
131 | |
| 104 | PROTOTYPES: ENABLE |
132 | PROTOTYPES: ENABLE |
| 105 | |
133 | |
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134 | # missing function in perl. really :) |
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135 | int |
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136 | common_prefix_length (a, b) |
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137 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
|
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138 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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139 | CODE: |
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140 | RETVAL = 0; |
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141 | |
|
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142 | while (*a == *b && *a) |
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143 | { |
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144 | RETVAL += (*a & 0xc0) != 0x80; |
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145 | a++, b++; |
|
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146 | } |
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147 | |
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148 | OUTPUT: |
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149 | RETVAL |
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150 | |
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151 | const char * |
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152 | magic (const char *path) |
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153 | CODE: |
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154 | { |
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155 | static magic_t cookie; |
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156 | |
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157 | if (!cookie) |
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158 | { |
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159 | cookie = magic_open (MAGIC_NONE); |
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160 | |
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161 | if (cookie) |
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162 | magic_load (cookie, 0); |
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163 | else |
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164 | XSRETURN_UNDEF; |
|
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165 | } |
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166 | |
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167 | RETVAL = magic_file (cookie, path); |
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168 | } |
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169 | OUTPUT: |
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170 | RETVAL |
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171 | |
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172 | const char * |
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173 | magic_mime (const char *path) |
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174 | CODE: |
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175 | { |
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176 | static magic_t cookie; |
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177 | |
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178 | if (!cookie) |
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179 | { |
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180 | cookie = magic_open (MAGIC_MIME); |
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181 | |
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182 | if (cookie) |
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183 | magic_load (cookie, 0); |
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184 | else |
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185 | XSRETURN_UNDEF; |
|
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186 | } |
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187 | |
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188 | RETVAL = magic_file (cookie, path); |
|
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189 | } |
|
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190 | OUTPUT: |
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191 | RETVAL |
|
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192 | |
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193 | # missing in Gtk2 perl module |
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194 | |
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195 | gboolean |
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196 | gdk_net_wm_supports (GdkAtom property) |
|
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197 | CODE: |
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198 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
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199 | RETVAL = gdk_net_wm_supports (property); |
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200 | #else |
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201 | RETVAL = 0; |
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202 | #endif |
|
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203 | OUTPUT: |
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204 | RETVAL |
|
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205 | |
| 106 | GdkPixbuf_noinc * |
206 | GdkPixbuf_noinc * |
| 107 | transpose (GdkPixbuf *pb) |
207 | dealpha_expose (GdkPixbuf *pb) |
| 108 | CODE: |
208 | CODE: |
| 109 | { |
209 | { |
| 110 | int w = gdk_pixbuf_get_width (pb); |
210 | int w = gdk_pixbuf_get_width (pb); |
| 111 | int h = gdk_pixbuf_get_height (pb); |
211 | int h = gdk_pixbuf_get_height (pb); |
| 112 | int bpp = gdk_pixbuf_get_n_channels (pb); |
212 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 113 | int x, y, i; |
213 | int x, y, i; |
| 114 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
214 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
| 115 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
215 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
| 116 | |
216 | |
| 117 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
217 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 118 | |
218 | |
| 119 | dst = gdk_pixbuf_get_pixels (RETVAL); |
219 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 120 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
220 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 121 | |
221 | |
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222 | for (x = 0; x < w; x++) |
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223 | for (y = 0; y < h; y++) |
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224 | for (i = 0; i < 3; i++) |
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225 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
|
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226 | } |
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227 | OUTPUT: |
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228 | RETVAL |
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229 | |
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230 | GdkPixbuf_noinc * |
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231 | rotate (GdkPixbuf *pb, int angle) |
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232 | CODE: |
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233 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
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234 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
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235 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
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236 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
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237 | : angle); |
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238 | OUTPUT: |
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239 | RETVAL |
|
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240 | |
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241 | GdkPixbuf_noinc * |
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242 | load_jpeg (SV *path, int thumbnail=0) |
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243 | CODE: |
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244 | { |
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245 | struct jpeg_decompress_struct cinfo; |
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246 | struct jpg_err_mgr jerr; |
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247 | guchar *data; |
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248 | int rs; |
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249 | FILE *fp; |
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250 | volatile GdkPixbuf *pb = 0; |
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251 | |
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252 | RETVAL = 0; |
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253 | |
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254 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
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255 | |
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256 | if (!fp) |
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257 | XSRETURN_UNDEF; |
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258 | |
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259 | cinfo.err = jpeg_std_error (&jerr.err); |
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260 | |
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261 | jerr.err.error_exit = cv_error_exit; |
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262 | jerr.err.output_message = cv_error_output; |
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263 | |
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264 | if ((rs = setjmp (jerr.setjmp_buffer))) |
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265 | { |
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266 | fclose (fp); |
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267 | jpeg_destroy_decompress (&cinfo); |
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268 | |
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269 | if (pb) |
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270 | g_object_unref ((gpointer)pb); |
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271 | |
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272 | XSRETURN_UNDEF; |
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273 | } |
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274 | |
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275 | jpeg_create_decompress (&cinfo); |
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276 | |
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277 | jpeg_stdio_src (&cinfo, fp); |
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278 | jpeg_read_header (&cinfo, TRUE); |
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279 | |
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280 | cinfo.dct_method = JDCT_DEFAULT; |
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281 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
|
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282 | cinfo.do_block_smoothing = FALSE; |
|
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283 | cinfo.out_color_space = JCS_RGB; |
|
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284 | cinfo.quantize_colors = FALSE; |
|
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285 | |
|
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286 | cinfo.scale_num = 1; |
|
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287 | cinfo.scale_denom = 1; |
|
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288 | |
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289 | jpeg_calc_output_dimensions (&cinfo); |
|
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290 | |
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291 | if (thumbnail) |
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292 | { |
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293 | cinfo.dct_method = JDCT_FASTEST; |
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294 | cinfo.do_fancy_upsampling = FALSE; |
|
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295 | |
|
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296 | while (cinfo.scale_denom < 8 |
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297 | && cinfo.output_width >= IW*4 |
|
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298 | && cinfo.output_height >= IH*4) |
|
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299 | { |
|
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300 | cinfo.scale_denom <<= 1; |
|
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301 | jpeg_calc_output_dimensions (&cinfo); |
|
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302 | } |
|
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303 | } |
|
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304 | |
|
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305 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
|
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306 | if (!RETVAL) |
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307 | longjmp (jerr.setjmp_buffer, 2); |
|
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308 | |
|
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309 | data = gdk_pixbuf_get_pixels (RETVAL); |
|
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310 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
|
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311 | |
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312 | if (cinfo.output_components != 3) |
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313 | longjmp (jerr.setjmp_buffer, 3); |
|
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314 | |
|
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315 | jpeg_start_decompress (&cinfo); |
|
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316 | |
|
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317 | while (cinfo.output_scanline < cinfo.output_height) |
|
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318 | { |
|
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319 | int remaining = cinfo.output_height - cinfo.output_scanline; |
|
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320 | JSAMPROW rp[4]; |
|
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321 | |
|
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322 | rp [0] = data + cinfo.output_scanline * rs; |
|
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323 | rp [1] = (guchar *)rp [0] + rs; |
|
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324 | rp [2] = (guchar *)rp [1] + rs; |
|
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325 | rp [3] = (guchar *)rp [2] + rs; |
|
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326 | |
|
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327 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
|
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328 | } |
|
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329 | |
|
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330 | jpeg_finish_decompress (&cinfo); |
|
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331 | fclose (fp); |
|
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332 | jpeg_destroy_decompress (&cinfo); |
|
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333 | } |
|
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334 | OUTPUT: |
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335 | RETVAL |
|
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336 | |
|
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337 | void |
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338 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
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339 | PPCODE: |
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340 | { |
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341 | int w = gdk_pixbuf_get_width (a); |
|
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342 | int h = gdk_pixbuf_get_height (a); |
|
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343 | int sa = gdk_pixbuf_get_rowstride (a); |
|
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344 | int sb = gdk_pixbuf_get_rowstride (b); |
|
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345 | |
|
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346 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
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347 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
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348 | |
|
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349 | int x, y; |
|
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350 | |
|
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351 | assert (w == gdk_pixbuf_get_width (b)); |
|
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352 | assert (h == gdk_pixbuf_get_height (b)); |
|
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353 | |
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354 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
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355 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
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356 | |
|
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357 | double diff = 0.; |
|
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358 | int peak = 0; |
|
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359 | |
| 122 | for (y = 0; y < h; y++) |
360 | for (y = 0; y < h; y++) |
|
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361 | { |
|
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362 | guchar *pa_ = pa + y * sa; |
|
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363 | guchar *pb_ = pb + y * sb; |
|
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364 | |
| 123 | for (x = 0; x < w; x++) |
365 | for (x = 0; x < w; x ++) |
|
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366 | { |
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367 | int d; |
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368 | |
|
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369 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
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370 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
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371 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
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372 | } |
|
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373 | } |
|
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374 | |
|
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375 | EXTEND (SP, 2); |
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376 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
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377 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
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378 | } |
|
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379 | |
|
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380 | ############################################################################# |
|
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381 | |
|
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382 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
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383 | |
|
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384 | SV * |
|
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385 | foldcase (SV *pathsv) |
|
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386 | PROTOTYPE: $ |
|
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387 | CODE: |
|
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388 | { |
|
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389 | STRLEN plen; |
|
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390 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
|
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391 | U8 *pend = path + plen; |
|
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392 | U8 dst [plen * 6 * 3], *dstp = dst; |
|
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393 | |
|
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394 | while (path < pend) |
|
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395 | { |
|
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396 | U8 ch = *path; |
|
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397 | |
|
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398 | if (ch >= 'a' && ch <= 'z') |
|
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399 | *dstp++ = *path++; |
|
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400 | else if (ch >= '0' && ch <= '9') |
|
|
401 | { |
|
|
402 | STRLEN el, nl = 0; |
|
|
403 | while (*path >= '0' && *path <= '9' && path < pend) |
|
|
404 | path++, nl++; |
|
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405 | |
| 124 | for (i = 0; i < bpp; i++) |
406 | for (el = nl; el < 6; el++) |
| 125 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
407 | *dstp++ = '0'; |
|
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408 | |
|
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409 | memcpy (dstp, path - nl, nl); |
|
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410 | dstp += nl; |
|
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411 | } |
|
|
412 | else |
|
|
413 | { |
|
|
414 | STRLEN cl; |
|
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415 | to_utf8_fold (path, dstp, &cl); |
|
|
416 | dstp += cl; |
|
|
417 | path += is_utf8_char (path); |
|
|
418 | } |
|
|
419 | } |
|
|
420 | |
|
|
421 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
| 126 | } |
422 | } |
| 127 | OUTPUT: |
423 | OUTPUT: |
| 128 | RETVAL |
424 | RETVAL |
| 129 | |
425 | |
| 130 | GdkPixbuf_noinc * |
426 | GdkPixbuf_noinc * |
| 131 | flop (GdkPixbuf *pb) |
|
|
| 132 | CODE: |
|
|
| 133 | { |
|
|
| 134 | int w = gdk_pixbuf_get_width (pb); |
|
|
| 135 | int h = gdk_pixbuf_get_height (pb); |
|
|
| 136 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
| 137 | int x, y, i; |
|
|
| 138 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
|
|
| 139 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
|
|
| 140 | |
|
|
| 141 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
|
|
| 142 | |
|
|
| 143 | dst = gdk_pixbuf_get_pixels (RETVAL); |
|
|
| 144 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
| 145 | |
|
|
| 146 | for (y = 0; y < h; y++) |
|
|
| 147 | for (x = 0; x < w; x++) |
|
|
| 148 | for (i = 0; i < bpp; i++) |
|
|
| 149 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
|
|
| 150 | } |
|
|
| 151 | OUTPUT: |
|
|
| 152 | RETVAL |
|
|
| 153 | |
|
|
| 154 | ############################################################################# |
|
|
| 155 | |
|
|
| 156 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
| 157 | |
|
|
| 158 | GdkPixbuf_noinc * |
|
|
| 159 | p7_to_pb (int w, int h, guchar *src) |
427 | p7_to_pb (int w, int h, SV *src_sv) |
|
|
428 | PROTOTYPE: @ |
| 160 | CODE: |
429 | CODE: |
| 161 | { |
430 | { |
| 162 | int x, y; |
431 | int x, y; |
| 163 | guchar *dst, *d; |
432 | guchar *dst, *d; |
| 164 | int dstr; |
433 | int dstr; |
|
|
434 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
| 165 | |
435 | |
| 166 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
436 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 167 | dst = gdk_pixbuf_get_pixels (RETVAL); |
437 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 168 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
438 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 169 | |
439 | |
| … | |
… | |
| 178 | } |
448 | } |
| 179 | } |
449 | } |
| 180 | OUTPUT: |
450 | OUTPUT: |
| 181 | RETVAL |
451 | RETVAL |
| 182 | |
452 | |
|
|
453 | ############################################################################# |
|
|
454 | |
|
|
455 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
456 | |
|
|
457 | void |
|
|
458 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
459 | CODE: |
|
|
460 | { |
|
|
461 | int w = gdk_pixbuf_get_width (pb); |
|
|
462 | int h = gdk_pixbuf_get_height (pb); |
|
|
463 | int x, y, i; |
|
|
464 | guchar *dst; |
|
|
465 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
466 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
467 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
468 | |
|
|
469 | a85_init (); |
|
|
470 | |
|
|
471 | for (y = 0; y < h; y++) |
|
|
472 | for (x = 0; x < w; x++) |
|
|
473 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
474 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
475 | |
|
|
476 | a85_finish (fp); |
|
|
477 | } |
|
|
478 | |
|
|
479 | void |
|
|
480 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
481 | CODE: |
|
|
482 | { |
|
|
483 | int w = gdk_pixbuf_get_width (pb); |
|
|
484 | int h = gdk_pixbuf_get_height (pb); |
|
|
485 | int x, y, i; |
|
|
486 | guchar *dst; |
|
|
487 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
488 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
489 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
490 | |
|
|
491 | for (y = 0; y < h; y++) |
|
|
492 | for (x = 0; x < w; x++) |
|
|
493 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
494 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
495 | } |
|
|
496 | |
|
|
497 | ############################################################################# |
|
|
498 | |
|
|
499 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
500 | |
| 183 | SV * |
501 | SV * |
| 184 | pb_to_p7 (GdkPixbuf *pb) |
502 | pb_to_hv84 (GdkPixbuf *pb) |
| 185 | CODE: |
503 | CODE: |
| 186 | { |
504 | { |
| 187 | int w = gdk_pixbuf_get_width (pb); |
505 | int w = gdk_pixbuf_get_width (pb); |
| 188 | int h = gdk_pixbuf_get_height (pb); |
506 | int h = gdk_pixbuf_get_height (pb); |
| 189 | int x, y; |
507 | int x, y; |
| 190 | guchar *dst; |
508 | guchar *dst; |
| 191 | int bpp = gdk_pixbuf_get_n_channels (pb); |
509 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 192 | guchar *src = gdk_pixbuf_get_pixels (pb); |
510 | guchar *src = gdk_pixbuf_get_pixels (pb); |
| 193 | int sstr = gdk_pixbuf_get_rowstride (pb); |
511 | int sstr = gdk_pixbuf_get_rowstride (pb); |
| 194 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
| 195 | int seed = 77; |
|
|
| 196 | |
512 | |
| 197 | RETVAL = newSV (w * h); |
513 | RETVAL = newSV (6 * 8 * 12 / 8); |
| 198 | SvPOK_only (RETVAL); |
514 | SvPOK_only (RETVAL); |
| 199 | SvCUR_set (RETVAL, w * h); |
515 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
| 200 | |
516 | |
| 201 | dst = SvPVX (RETVAL); |
517 | dst = (guchar *)SvPVX (RETVAL); |
| 202 | |
|
|
| 203 | memset (Er, 0, sizeof (int) * IW); |
|
|
| 204 | memset (Eg, 0, sizeof (int) * IW); |
|
|
| 205 | memset (Eb, 0, sizeof (int) * IW); |
|
|
| 206 | |
518 | |
| 207 | /* some primitive error distribution + random dithering */ |
519 | /* some primitive error distribution + random dithering */ |
| 208 | |
520 | |
| 209 | for (y = 0; y < h; y++) |
521 | for (y = 0; y < h; y++) |
| 210 | { |
522 | { |
| 211 | int er = 0, eg = 0, eb = 0; |
523 | guchar *p = src + y * sstr; |
| 212 | |
524 | |
| 213 | for (x = 0; x < w; x++) |
525 | for (x = 0; x < w; x += 2) |
| 214 | { |
526 | { |
| 215 | int r, g, b; |
527 | unsigned int r, g, b, h, s, v, H, V1, V2; |
| 216 | guchar *p = src + x * bpp + y * sstr; |
|
|
| 217 | |
528 | |
| 218 | r = ((p[0] + er + Er[x]) * 7 + 128) / 255; |
529 | if (bpp == 3) |
| 219 | g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255; |
530 | r = *p++, g = *p++, b = *p++; |
| 220 | b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255; |
531 | else if (bpp == 1) |
|
|
532 | r = g = b = *p++; |
|
|
533 | else |
|
|
534 | abort (); |
| 221 | |
535 | |
| 222 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
536 | rgb_to_hsv (r, g, b, &h, &s, &v); |
| 223 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
| 224 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
| 225 | |
537 | |
| 226 | er += p[0] - (r * 255 + 4) / 7; |
538 | H = (h * 15 / 255) << 4; |
| 227 | eg += p[1] - (g * 255 + 4) / 7; |
539 | V1 = v; |
| 228 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
| 229 | |
540 | |
| 230 | Er[x] = er / 2; er -= er / 2 + RAND % 5 - 2; |
541 | if (bpp == 3) |
| 231 | Eg[x] = eg / 2; eg -= eg / 2 + RAND % 5 - 2; |
542 | r = *p++, g = *p++, b = *p++; |
| 232 | Eb[x] = eb / 2; eb -= eb / 2 + RAND % 5 - 2; |
543 | else if (bpp == 1) |
|
|
544 | r = g = b = *p++; |
|
|
545 | else |
|
|
546 | abort (); |
| 233 | |
547 | |
| 234 | *dst++ = r << 5 | g << 2 | b; |
548 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
549 | |
|
|
550 | H |= h * 15 / 255; |
|
|
551 | V2 = v; |
|
|
552 | |
|
|
553 | *dst++ = H; |
|
|
554 | *dst++ = V1; |
|
|
555 | *dst++ = V2; |
| 235 | } |
556 | } |
| 236 | } |
557 | } |
| 237 | } |
558 | } |
| 238 | OUTPUT: |
559 | OUTPUT: |
| 239 | RETVAL |
560 | RETVAL |
| 240 | |
561 | |
| 241 | SV * |
562 | SV * |
|
|
563 | hv84_to_av (unsigned char *hv84) |
|
|
564 | CODE: |
|
|
565 | { |
|
|
566 | int i = 72 / 3; |
|
|
567 | AV *av = newAV (); |
|
|
568 | |
|
|
569 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
570 | while (i--) |
|
|
571 | { |
|
|
572 | int h = *hv84++; |
|
|
573 | int v1 = *hv84++; |
|
|
574 | int v2 = *hv84++; |
|
|
575 | |
|
|
576 | av_push (av, newSViv (v1)); |
|
|
577 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
578 | av_push (av, newSViv (v2)); |
|
|
579 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
580 | } |
|
|
581 | } |
|
|
582 | OUTPUT: |
|
|
583 | RETVAL |
|
|
584 | |
|
|
585 | ############################################################################# |
|
|
586 | |
|
|
587 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
|
|
588 | |
|
|
589 | SV * |
| 242 | make_histogram (SV *ar) |
590 | make_histograms (SV *ar) |
| 243 | CODE: |
591 | CODE: |
| 244 | { |
592 | { |
| 245 | int i; |
593 | int i; |
| 246 | AV *av, *result; |
594 | AV *av, *result; |
| 247 | |
595 | |
| … | |
… | |
| 291 | } |
639 | } |
| 292 | OUTPUT: |
640 | OUTPUT: |
| 293 | RETVAL |
641 | RETVAL |
| 294 | |
642 | |
| 295 | |
643 | |
| 296 | |
|
|
| 297 | ############################################################################# |
|
|
| 298 | |
|
|
| 299 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
| 300 | |
|
|
| 301 | void |
|
|
| 302 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
| 303 | CODE: |
|
|
| 304 | { |
|
|
| 305 | int w = gdk_pixbuf_get_width (pb); |
|
|
| 306 | int h = gdk_pixbuf_get_height (pb); |
|
|
| 307 | int x, y, i; |
|
|
| 308 | guchar *dst; |
|
|
| 309 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
| 310 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
| 311 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
| 312 | |
|
|
| 313 | a85_init (); |
|
|
| 314 | |
|
|
| 315 | for (y = 0; y < h; y++) |
|
|
| 316 | for (x = 0; x < w; x++) |
|
|
| 317 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
| 318 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
| 319 | |
|
|
| 320 | a85_finish (fp); |
|
|
| 321 | } |
|
|
| 322 | |
|
|
| 323 | void |
|
|
| 324 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
| 325 | CODE: |
|
|
| 326 | { |
|
|
| 327 | int w = gdk_pixbuf_get_width (pb); |
|
|
| 328 | int h = gdk_pixbuf_get_height (pb); |
|
|
| 329 | int x, y, i; |
|
|
| 330 | guchar *dst; |
|
|
| 331 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
| 332 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
| 333 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
| 334 | |
|
|
| 335 | for (y = 0; y < h; y++) |
|
|
| 336 | for (x = 0; x < w; x++) |
|
|
| 337 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
| 338 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
| 339 | } |
|
|
| 340 | |
|
|
| 341 | ############################################################################# |
|
|
| 342 | |
|
|
| 343 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
| 344 | |
|
|
| 345 | SV * |
|
|
| 346 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
| 347 | CODE: |
|
|
| 348 | { |
|
|
| 349 | int w = gdk_pixbuf_get_width (pb); |
|
|
| 350 | int h = gdk_pixbuf_get_height (pb); |
|
|
| 351 | int x, y; |
|
|
| 352 | guchar *dst; |
|
|
| 353 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
| 354 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
| 355 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
| 356 | |
|
|
| 357 | RETVAL = newSV (6 * 8 * 12 / 8); |
|
|
| 358 | SvPOK_only (RETVAL); |
|
|
| 359 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
|
|
| 360 | |
|
|
| 361 | dst = SvPVX (RETVAL); |
|
|
| 362 | |
|
|
| 363 | /* some primitive error distribution + random dithering */ |
|
|
| 364 | |
|
|
| 365 | for (y = 0; y < h; y++) |
|
|
| 366 | { |
|
|
| 367 | guchar *p = src + y * sstr; |
|
|
| 368 | |
|
|
| 369 | for (x = 0; x < w; x += 2) |
|
|
| 370 | { |
|
|
| 371 | unsigned int r, g, b, h, s, v, H, V1, V2; |
|
|
| 372 | |
|
|
| 373 | if (bpp == 3) |
|
|
| 374 | r = *p++, g = *p++, b = *p++; |
|
|
| 375 | else if (bpp == 1) |
|
|
| 376 | r = g = b = *p++; |
|
|
| 377 | else |
|
|
| 378 | abort (); |
|
|
| 379 | |
|
|
| 380 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
| 381 | |
|
|
| 382 | H = (h * 15 / 255) << 4; |
|
|
| 383 | V1 = v; |
|
|
| 384 | |
|
|
| 385 | if (bpp == 3) |
|
|
| 386 | r = *p++, g = *p++, b = *p++; |
|
|
| 387 | else if (bpp == 1) |
|
|
| 388 | r = g = b = *p++; |
|
|
| 389 | else |
|
|
| 390 | abort (); |
|
|
| 391 | |
|
|
| 392 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
| 393 | |
|
|
| 394 | H |= h * 15 / 255; |
|
|
| 395 | V2 = v; |
|
|
| 396 | |
|
|
| 397 | *dst++ = H; |
|
|
| 398 | *dst++ = V1; |
|
|
| 399 | *dst++ = V2; |
|
|
| 400 | } |
|
|
| 401 | } |
|
|
| 402 | } |
|
|
| 403 | OUTPUT: |
|
|
| 404 | RETVAL |
|
|
| 405 | |
|
|
| 406 | SV * |
|
|
| 407 | hv84_to_av (unsigned char *hv84) |
|
|
| 408 | CODE: |
|
|
| 409 | { |
|
|
| 410 | int i = 72 / 3; |
|
|
| 411 | AV *av = newAV (); |
|
|
| 412 | |
|
|
| 413 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
| 414 | while (i--) |
|
|
| 415 | { |
|
|
| 416 | int h = *hv84++; |
|
|
| 417 | int v1 = *hv84++; |
|
|
| 418 | int v2 = *hv84++; |
|
|
| 419 | |
|
|
| 420 | av_push (av, newSViv (v1)); |
|
|
| 421 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
| 422 | av_push (av, newSViv (v2)); |
|
|
| 423 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
| 424 | } |
|
|
| 425 | } |
|
|
| 426 | OUTPUT: |
|
|
| 427 | RETVAL |
|
|
| 428 | |
|
|
| 429 | |
|
|
| 430 | |
|
|
