| 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> |
| 5 | #include <gdk-pixbuf/gdk-pixbuf.h> |
13 | #include <gdk-pixbuf/gdk-pixbuf.h> |
| 6 | |
14 | |
| 7 | #include <gperl.h> |
15 | #include <gperl.h> |
| 8 | #include <gtk2perl.h> |
16 | #include <gtk2perl.h> |
| 9 | |
17 | |
| 10 | #define IW 80 |
18 | #define IW 80 /* MUST match Schnauer.pm! */ |
|
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19 | #define IH 60 /* MUST match Schnauer.pm! */ |
| 11 | |
20 | |
| 12 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
21 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
| 13 | |
22 | |
| 14 | #define LINELENGTH 240 |
23 | #define LINELENGTH 240 |
| 15 | |
24 | |
| 16 | #define ELLIPSIS "\xe2\x80\xa6" |
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 | } |
| 17 | |
71 | |
| 18 | static guint32 a85_val; |
72 | static guint32 a85_val; |
| 19 | static guint a85_cnt; |
73 | static guint a85_cnt; |
| 20 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
74 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
| 21 | |
75 | |
| … | |
… | |
| 68 | *a85_ptr++ = '\n'; |
122 | *a85_ptr++ = '\n'; |
| 69 | |
123 | |
| 70 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
124 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
| 71 | } |
125 | } |
| 72 | |
126 | |
| 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 | ///////////////////////////////////////////////////////////////////////////// |
127 | ///////////////////////////////////////////////////////////////////////////// |
| 101 | |
128 | |
| 102 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
129 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
| 103 | |
130 | |
| 104 | PROTOTYPES: ENABLE |
131 | PROTOTYPES: ENABLE |
| 105 | |
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; |
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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 | |
| 106 | GdkPixbuf_noinc * |
184 | GdkPixbuf_noinc * |
| 107 | transpose (GdkPixbuf *pb) |
185 | dealpha_expose (GdkPixbuf *pb) |
| 108 | CODE: |
186 | CODE: |
| 109 | { |
187 | { |
| 110 | int w = gdk_pixbuf_get_width (pb); |
188 | int w = gdk_pixbuf_get_width (pb); |
| 111 | int h = gdk_pixbuf_get_height (pb); |
189 | int h = gdk_pixbuf_get_height (pb); |
| 112 | int bpp = gdk_pixbuf_get_n_channels (pb); |
190 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 113 | int x, y, i; |
191 | int x, y, i; |
| 114 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
192 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
| 115 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
193 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
| 116 | |
194 | |
| 117 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
195 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 118 | |
196 | |
| 119 | dst = gdk_pixbuf_get_pixels (RETVAL); |
197 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 120 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
198 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 121 | |
199 | |
| 122 | for (y = 0; y < h; y++) |
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| 123 | for (x = 0; x < w; x++) |
200 | for (x = 0; x < w; x++) |
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201 | for (y = 0; y < h; y++) |
| 124 | for (i = 0; i < bpp; i++) |
202 | for (i = 0; i < 3; i++) |
| 125 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
203 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
| 126 | } |
204 | } |
| 127 | OUTPUT: |
205 | OUTPUT: |
| 128 | RETVAL |
206 | RETVAL |
| 129 | |
207 | |
| 130 | GdkPixbuf_noinc * |
208 | GdkPixbuf_noinc * |
| 131 | flop (GdkPixbuf *pb) |
209 | rotate (GdkPixbuf *pb, int angle) |
| 132 | CODE: |
210 | CODE: |
| 133 | { |
211 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
| 134 | int w = gdk_pixbuf_get_width (pb); |
212 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
| 135 | int h = gdk_pixbuf_get_height (pb); |
213 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
| 136 | int bpp = gdk_pixbuf_get_n_channels (pb); |
214 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
| 137 | int x, y, i; |
215 | : angle); |
| 138 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
216 | OUTPUT: |
| 139 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
217 | RETVAL |
| 140 | |
218 | |
| 141 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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; |
| 142 | |
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 | |
| 143 | dst = gdk_pixbuf_get_pixels (RETVAL); |
287 | data = gdk_pixbuf_get_pixels (RETVAL); |
| 144 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
288 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
| 145 | |
289 | |
| 146 | for (y = 0; y < h; y++) |
290 | if (cinfo.output_components != 3) |
| 147 | for (x = 0; x < w; x++) |
291 | longjmp (jerr.setjmp_buffer, 3); |
| 148 | for (i = 0; i < bpp; i++) |
292 | |
| 149 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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); |
| 150 | } |
311 | } |
| 151 | OUTPUT: |
312 | OUTPUT: |
| 152 | RETVAL |
313 | RETVAL |
| 153 | |
314 | |
| 154 | ############################################################################# |
315 | ############################################################################# |
| 155 | |
316 | |
| 156 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
| 157 | |
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 |
|
|
360 | |
| 158 | GdkPixbuf_noinc * |
361 | GdkPixbuf_noinc * |
| 159 | p7_to_pb (int w, int h, guchar *src) |
362 | p7_to_pb (int w, int h, SV *src_sv) |
|
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363 | PROTOTYPE: @ |
| 160 | CODE: |
364 | CODE: |
| 161 | { |
365 | { |
| 162 | int x, y; |
366 | int x, y; |
| 163 | guchar *dst, *d; |
367 | guchar *dst, *d; |
| 164 | int dstr; |
368 | int dstr; |
|
|
369 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
| 165 | |
370 | |
| 166 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
371 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 167 | dst = gdk_pixbuf_get_pixels (RETVAL); |
372 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 168 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
373 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 169 | |
374 | |
| … | |
… | |
| 178 | } |
383 | } |
| 179 | } |
384 | } |
| 180 | OUTPUT: |
385 | OUTPUT: |
| 181 | RETVAL |
386 | RETVAL |
| 182 | |
387 | |
|
|
388 | ############################################################################# |
|
|
389 | |
|
|
390 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
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391 | |
|
|
392 | void |
|
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393 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
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394 | CODE: |
|
|
395 | { |
|
|
396 | int w = gdk_pixbuf_get_width (pb); |
|
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397 | int h = gdk_pixbuf_get_height (pb); |
|
|
398 | int x, y, i; |
|
|
399 | guchar *dst; |
|
|
400 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
401 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
402 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
403 | |
|
|
404 | a85_init (); |
|
|
405 | |
|
|
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++) |
|
|
409 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
410 | |
|
|
411 | a85_finish (fp); |
|
|
412 | } |
|
|
413 | |
|
|
414 | void |
|
|
415 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
416 | CODE: |
|
|
417 | { |
|
|
418 | int w = gdk_pixbuf_get_width (pb); |
|
|
419 | int h = gdk_pixbuf_get_height (pb); |
|
|
420 | int x, y, i; |
|
|
421 | guchar *dst; |
|
|
422 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
423 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
424 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
425 | |
|
|
426 | for (y = 0; y < h; y++) |
|
|
427 | for (x = 0; x < w; x++) |
|
|
428 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
429 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
430 | } |
|
|
431 | |
|
|
432 | ############################################################################# |
|
|
433 | |
|
|
434 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
435 | |
| 183 | SV * |
436 | SV * |
| 184 | pb_to_p7 (GdkPixbuf *pb) |
437 | pb_to_hv84 (GdkPixbuf *pb) |
| 185 | CODE: |
438 | CODE: |
| 186 | { |
439 | { |
| 187 | int w = gdk_pixbuf_get_width (pb); |
440 | int w = gdk_pixbuf_get_width (pb); |
| 188 | int h = gdk_pixbuf_get_height (pb); |
441 | int h = gdk_pixbuf_get_height (pb); |
| 189 | int x, y; |
442 | int x, y; |
| 190 | guchar *dst; |
443 | guchar *dst; |
| 191 | int bpp = gdk_pixbuf_get_n_channels (pb); |
444 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 192 | guchar *src = gdk_pixbuf_get_pixels (pb); |
445 | guchar *src = gdk_pixbuf_get_pixels (pb); |
| 193 | int sstr = gdk_pixbuf_get_rowstride (pb); |
446 | int sstr = gdk_pixbuf_get_rowstride (pb); |
| 194 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
| 195 | int seed = 77; |
|
|
| 196 | |
447 | |
| 197 | RETVAL = newSV (w * h); |
448 | RETVAL = newSV (6 * 8 * 12 / 8); |
| 198 | SvPOK_only (RETVAL); |
449 | SvPOK_only (RETVAL); |
| 199 | SvCUR_set (RETVAL, w * h); |
450 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
| 200 | |
451 | |
| 201 | dst = SvPVX (RETVAL); |
452 | 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 | |
453 | |
| 207 | /* some primitive error distribution + random dithering */ |
454 | /* some primitive error distribution + random dithering */ |
| 208 | |
455 | |
| 209 | for (y = 0; y < h; y++) |
456 | for (y = 0; y < h; y++) |
| 210 | { |
457 | { |
| 211 | int er = 0, eg = 0, eb = 0; |
458 | guchar *p = src + y * sstr; |
| 212 | |
459 | |
| 213 | for (x = 0; x < w; x++) |
460 | for (x = 0; x < w; x += 2) |
| 214 | { |
461 | { |
| 215 | int r, g, b; |
462 | unsigned int r, g, b, h, s, v, H, V1, V2; |
| 216 | guchar *p = src + x * bpp + y * sstr; |
|
|
| 217 | |
463 | |
| 218 | r = ((p[0] + er + Er[x]) * 7 + 128) / 255; |
464 | if (bpp == 3) |
| 219 | g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255; |
465 | r = *p++, g = *p++, b = *p++; |
| 220 | b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255; |
466 | else if (bpp == 1) |
|
|
467 | r = g = b = *p++; |
|
|
468 | else |
|
|
469 | abort (); |
| 221 | |
470 | |
| 222 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
471 | 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 | |
472 | |
| 226 | er += p[0] - (r * 255 + 4) / 7; |
473 | H = (h * 15 / 255) << 4; |
| 227 | eg += p[1] - (g * 255 + 4) / 7; |
474 | V1 = v; |
| 228 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
| 229 | |
475 | |
| 230 | Er[x] = er / 2; er -= er / 2 + RAND % 5 - 2; |
476 | if (bpp == 3) |
| 231 | Eg[x] = eg / 2; eg -= eg / 2 + RAND % 5 - 2; |
477 | r = *p++, g = *p++, b = *p++; |
| 232 | Eb[x] = eb / 2; eb -= eb / 2 + RAND % 5 - 2; |
478 | else if (bpp == 1) |
|
|
479 | r = g = b = *p++; |
|
|
480 | else |
|
|
481 | abort (); |
| 233 | |
482 | |
| 234 | *dst++ = r << 5 | g << 2 | b; |
483 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
484 | |
|
|
485 | H |= h * 15 / 255; |
|
|
486 | V2 = v; |
|
|
487 | |
|
|
488 | *dst++ = H; |
|
|
489 | *dst++ = V1; |
|
|
490 | *dst++ = V2; |
| 235 | } |
491 | } |
| 236 | } |
492 | } |
| 237 | } |
493 | } |
| 238 | OUTPUT: |
494 | OUTPUT: |
| 239 | RETVAL |
495 | RETVAL |
| 240 | |
496 | |
| 241 | SV * |
497 | SV * |
|
|
498 | hv84_to_av (unsigned char *hv84) |
|
|
499 | CODE: |
|
|
500 | { |
|
|
501 | int i = 72 / 3; |
|
|
502 | AV *av = newAV (); |
|
|
503 | |
|
|
504 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
505 | while (i--) |
|
|
506 | { |
|
|
507 | int h = *hv84++; |
|
|
508 | int v1 = *hv84++; |
|
|
509 | int v2 = *hv84++; |
|
|
510 | |
|
|
511 | av_push (av, newSViv (v1)); |
|
|
512 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
513 | av_push (av, newSViv (v2)); |
|
|
514 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
515 | } |
|
|
516 | } |
|
|
517 | OUTPUT: |
|
|
518 | RETVAL |
|
|
519 | |
|
|
520 | ############################################################################# |
|
|
521 | |
|
|
522 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
|
|
523 | |
|
|
524 | SV * |
| 242 | make_histogram (SV *ar) |
525 | make_histograms (SV *ar) |
| 243 | CODE: |
526 | CODE: |
| 244 | { |
527 | { |
| 245 | int i; |
528 | int i; |
| 246 | AV *av, *result; |
529 | AV *av, *result; |
| 247 | |
530 | |
| … | |
… | |
| 291 | } |
574 | } |
| 292 | OUTPUT: |
575 | OUTPUT: |
| 293 | RETVAL |
576 | RETVAL |
| 294 | |
577 | |
| 295 | |
578 | |
| 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 | |
|
|
