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> |
5 | #include <setjmp.h> |
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> |
6 | |
10 | |
7 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
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12 | #include <glib.h> |
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13 | #include <gtk/gtk.h> |
8 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
9 | |
15 | |
10 | #include <gperl.h> |
16 | #include <gperl.h> |
11 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
12 | |
18 | |
13 | #define IW 80 /* MUST match Schnauer.pm! */ |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
14 | #define IH 60 /* MUST match Schnauer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
15 | |
21 | |
16 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
17 | |
23 | |
18 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
19 | |
25 | |
… | |
… | |
123 | |
129 | |
124 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
130 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
125 | |
131 | |
126 | PROTOTYPES: ENABLE |
132 | PROTOTYPES: ENABLE |
127 | |
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 | |
128 | GdkPixbuf_noinc * |
206 | GdkPixbuf_noinc * |
129 | transpose (GdkPixbuf *pb) |
207 | dealpha_expose (GdkPixbuf *pb) |
130 | CODE: |
208 | CODE: |
131 | { |
209 | { |
132 | int w = gdk_pixbuf_get_width (pb); |
210 | int w = gdk_pixbuf_get_width (pb); |
133 | int h = gdk_pixbuf_get_height (pb); |
211 | int h = gdk_pixbuf_get_height (pb); |
134 | int bpp = gdk_pixbuf_get_n_channels (pb); |
212 | int bpp = gdk_pixbuf_get_n_channels (pb); |
135 | int x, y, i; |
213 | int x, y, i; |
136 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
214 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
137 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
215 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
138 | |
216 | |
139 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
217 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
140 | |
218 | |
141 | dst = gdk_pixbuf_get_pixels (RETVAL); |
219 | dst = gdk_pixbuf_get_pixels (RETVAL); |
142 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
220 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
143 | |
221 | |
144 | for (y = 0; y < h; y++) |
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145 | for (x = 0; x < w; x++) |
222 | for (x = 0; x < w; x++) |
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223 | for (y = 0; y < h; y++) |
146 | for (i = 0; i < bpp; i++) |
224 | for (i = 0; i < 3; i++) |
147 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
225 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
148 | } |
226 | } |
149 | OUTPUT: |
227 | OUTPUT: |
150 | RETVAL |
228 | RETVAL |
151 | |
229 | |
152 | GdkPixbuf_noinc * |
230 | GdkPixbuf_noinc * |
153 | flop (GdkPixbuf *pb) |
231 | rotate (GdkPixbuf *pb, int angle) |
154 | CODE: |
232 | CODE: |
155 | { |
233 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
156 | int w = gdk_pixbuf_get_width (pb); |
234 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
157 | int h = gdk_pixbuf_get_height (pb); |
235 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
158 | int bpp = gdk_pixbuf_get_n_channels (pb); |
236 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
159 | int x, y, i; |
237 | : angle); |
160 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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161 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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162 | |
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163 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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164 | |
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165 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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166 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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167 | |
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168 | for (y = 0; y < h; y++) |
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169 | for (x = 0; x < w; x++) |
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170 | for (i = 0; i < bpp; i++) |
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171 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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172 | } |
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173 | OUTPUT: |
238 | OUTPUT: |
174 | RETVAL |
239 | RETVAL |
175 | |
240 | |
176 | GdkPixbuf_noinc * |
241 | GdkPixbuf_noinc * |
177 | load_jpeg (char *path, int thumbnail=0) |
242 | load_jpeg (SV *path, int thumbnail=0) |
178 | CODE: |
243 | CODE: |
179 | { |
244 | { |
180 | struct jpeg_decompress_struct cinfo; |
245 | struct jpeg_decompress_struct cinfo; |
181 | struct jpg_err_mgr jerr; |
246 | struct jpg_err_mgr jerr; |
182 | guchar *data; |
247 | guchar *data; |
183 | int rs; |
248 | int rs; |
184 | FILE *fp; |
249 | FILE *fp; |
185 | volatile GdkPixbuf *pb = 0; |
250 | volatile GdkPixbuf *pb = 0; |
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251 | |
186 | RETVAL = 0; |
252 | RETVAL = 0; |
187 | |
253 | |
188 | if (!(fp = fopen (path, "rb"))) |
254 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
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255 | |
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256 | if (!fp) |
189 | XSRETURN_UNDEF; |
257 | XSRETURN_UNDEF; |
190 | |
258 | |
191 | cinfo.err = jpeg_std_error (&jerr.err); |
259 | cinfo.err = jpeg_std_error (&jerr.err); |
192 | |
260 | |
193 | jerr.err.error_exit = cv_error_exit; |
261 | jerr.err.error_exit = cv_error_exit; |
… | |
… | |
224 | { |
292 | { |
225 | cinfo.dct_method = JDCT_FASTEST; |
293 | cinfo.dct_method = JDCT_FASTEST; |
226 | cinfo.do_fancy_upsampling = FALSE; |
294 | cinfo.do_fancy_upsampling = FALSE; |
227 | |
295 | |
228 | while (cinfo.scale_denom < 8 |
296 | while (cinfo.scale_denom < 8 |
229 | && (cinfo.output_width >> 1) >= IW |
297 | && cinfo.output_width >= IW*4 |
230 | && (cinfo.output_height >> 1) >= IH) |
298 | && cinfo.output_height >= IH*4) |
231 | { |
299 | { |
232 | cinfo.scale_denom <<= 1; |
300 | cinfo.scale_denom <<= 1; |
233 | jpeg_calc_output_dimensions (&cinfo); |
301 | jpeg_calc_output_dimensions (&cinfo); |
234 | } |
302 | } |
235 | } |
303 | } |
… | |
… | |
264 | jpeg_destroy_decompress (&cinfo); |
332 | jpeg_destroy_decompress (&cinfo); |
265 | } |
333 | } |
266 | OUTPUT: |
334 | OUTPUT: |
267 | RETVAL |
335 | RETVAL |
268 | |
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 | |
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360 | if (x && y) |
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361 | for (y = 0; y < h; y++) |
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362 | { |
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363 | guchar *pa_ = pa + y * sa; |
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364 | guchar *pb_ = pb + y * sb; |
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365 | |
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366 | for (x = 0; x < w; x++) |
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367 | { |
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368 | int d; |
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369 | |
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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 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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373 | } |
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374 | } |
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375 | |
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376 | EXTEND (SP, 2); |
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377 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
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378 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
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379 | } |
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380 | |
269 | ############################################################################# |
381 | ############################################################################# |
270 | |
382 | |
271 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
383 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
272 | |
384 | |
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385 | SV * |
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386 | foldcase (SV *pathsv) |
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387 | PROTOTYPE: $ |
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388 | CODE: |
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389 | { |
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390 | STRLEN plen; |
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391 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
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392 | U8 *pend = path + plen; |
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393 | U8 dst [plen * 6 * 3], *dstp = dst; |
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394 | |
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395 | while (path < pend) |
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396 | { |
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397 | U8 ch = *path; |
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398 | |
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399 | if (ch >= 'a' && ch <= 'z') |
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400 | *dstp++ = *path++; |
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401 | else if (ch >= '0' && ch <= '9') |
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402 | { |
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403 | STRLEN el, nl = 0; |
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404 | while (*path >= '0' && *path <= '9' && path < pend) |
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405 | path++, nl++; |
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406 | |
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407 | for (el = nl; el < 6; el++) |
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408 | *dstp++ = '0'; |
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409 | |
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410 | memcpy (dstp, path - nl, nl); |
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411 | dstp += nl; |
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412 | } |
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413 | else |
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414 | { |
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415 | STRLEN cl; |
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416 | to_utf8_fold (path, dstp, &cl); |
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417 | dstp += cl; |
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418 | path += is_utf8_char (path); |
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419 | } |
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420 | } |
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421 | |
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422 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
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423 | } |
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424 | OUTPUT: |
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425 | RETVAL |
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426 | |
273 | GdkPixbuf_noinc * |
427 | GdkPixbuf_noinc * |
274 | p7_to_pb (int w, int h, guchar *src) |
428 | p7_to_pb (int w, int h, SV *src_sv) |
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429 | PROTOTYPE: @ |
275 | CODE: |
430 | CODE: |
276 | { |
431 | { |
277 | int x, y; |
432 | int x, y; |
278 | guchar *dst, *d; |
433 | guchar *dst, *d; |
279 | int dstr; |
434 | int dstr; |
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435 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
280 | |
436 | |
281 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
437 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
282 | dst = gdk_pixbuf_get_pixels (RETVAL); |
438 | dst = gdk_pixbuf_get_pixels (RETVAL); |
283 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
439 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
284 | |
440 | |
… | |
… | |
293 | } |
449 | } |
294 | } |
450 | } |
295 | OUTPUT: |
451 | OUTPUT: |
296 | RETVAL |
452 | RETVAL |
297 | |
453 | |
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454 | ############################################################################# |
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455 | |
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456 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
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457 | |
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458 | void |
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459 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
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460 | CODE: |
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461 | { |
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462 | int w = gdk_pixbuf_get_width (pb); |
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463 | int h = gdk_pixbuf_get_height (pb); |
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464 | int x, y, i; |
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465 | guchar *dst; |
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466 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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467 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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468 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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469 | |
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470 | a85_init (); |
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471 | |
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472 | for (y = 0; y < h; y++) |
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473 | for (x = 0; x < w; x++) |
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474 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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475 | a85_push (fp, src [x * bpp + y * sstr + i]); |
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476 | |
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477 | a85_finish (fp); |
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478 | } |
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479 | |
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480 | void |
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481 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
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482 | CODE: |
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483 | { |
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484 | int w = gdk_pixbuf_get_width (pb); |
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485 | int h = gdk_pixbuf_get_height (pb); |
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486 | int x, y, i; |
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487 | guchar *dst; |
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488 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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489 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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490 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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491 | |
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492 | for (y = 0; y < h; y++) |
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493 | for (x = 0; x < w; x++) |
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494 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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495 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
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496 | } |
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497 | |
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498 | ############################################################################# |
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499 | |
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500 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
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501 | |
298 | SV * |
502 | SV * |
299 | pb_to_p7 (GdkPixbuf *pb) |
503 | pb_to_hv84 (GdkPixbuf *pb) |
300 | CODE: |
504 | CODE: |
301 | { |
505 | { |
302 | int w = gdk_pixbuf_get_width (pb); |
506 | int w = gdk_pixbuf_get_width (pb); |
303 | int h = gdk_pixbuf_get_height (pb); |
507 | int h = gdk_pixbuf_get_height (pb); |
304 | int x, y; |
508 | int x, y; |
305 | guchar *dst; |
509 | guchar *dst; |
306 | int bpp = gdk_pixbuf_get_n_channels (pb); |
510 | int bpp = gdk_pixbuf_get_n_channels (pb); |
307 | guchar *src = gdk_pixbuf_get_pixels (pb); |
511 | guchar *src = gdk_pixbuf_get_pixels (pb); |
308 | int sstr = gdk_pixbuf_get_rowstride (pb); |
512 | int sstr = gdk_pixbuf_get_rowstride (pb); |
309 | int Er[IW], Eg[IW], Eb[IW]; |
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310 | int seed = 77; |
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311 | |
513 | |
312 | RETVAL = newSV (w * h); |
514 | RETVAL = newSV (6 * 8 * 12 / 8); |
313 | SvPOK_only (RETVAL); |
515 | SvPOK_only (RETVAL); |
314 | SvCUR_set (RETVAL, w * h); |
516 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
315 | |
517 | |
316 | dst = SvPVX (RETVAL); |
518 | dst = (guchar *)SvPVX (RETVAL); |
317 | |
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318 | memset (Er, 0, sizeof (int) * IW); |
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319 | memset (Eg, 0, sizeof (int) * IW); |
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320 | memset (Eb, 0, sizeof (int) * IW); |
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321 | |
519 | |
322 | /* some primitive error distribution + random dithering */ |
520 | /* some primitive error distribution + random dithering */ |
323 | |
521 | |
324 | for (y = 0; y < h; y++) |
522 | for (y = 0; y < h; y++) |
325 | { |
523 | { |
326 | int er = 0, eg = 0, eb = 0; |
524 | guchar *p = src + y * sstr; |
327 | |
525 | |
328 | for (x = 0; x < w; x++) |
526 | for (x = 0; x < w; x += 2) |
329 | { |
527 | { |
330 | int r, g, b; |
528 | unsigned int r, g, b, h, s, v, H, V1, V2; |
331 | guchar *p = src + x * bpp + y * sstr; |
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332 | |
529 | |
333 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
530 | if (bpp == 3) |
334 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
531 | r = *p++, g = *p++, b = *p++; |
335 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
532 | else if (bpp == 1) |
|
|
533 | r = g = b = *p++; |
|
|
534 | else |
|
|
535 | abort (); |
336 | |
536 | |
337 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
537 | rgb_to_hsv (r, g, b, &h, &s, &v); |
338 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
339 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
340 | |
538 | |
341 | er += p[0] - (r * 255 + 4) / 7; |
539 | H = (h * 15 / 255) << 4; |
342 | eg += p[1] - (g * 255 + 4) / 7; |
540 | V1 = v; |
343 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
344 | |
541 | |
345 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
542 | if (bpp == 3) |
346 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
543 | r = *p++, g = *p++, b = *p++; |
347 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
544 | else if (bpp == 1) |
|
|
545 | r = g = b = *p++; |
|
|
546 | else |
|
|
547 | abort (); |
348 | |
548 | |
349 | *dst++ = r << 5 | g << 2 | b; |
549 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
550 | |
|
|
551 | H |= h * 15 / 255; |
|
|
552 | V2 = v; |
|
|
553 | |
|
|
554 | *dst++ = H; |
|
|
555 | *dst++ = V1; |
|
|
556 | *dst++ = V2; |
350 | } |
557 | } |
351 | } |
558 | } |
352 | } |
559 | } |
353 | OUTPUT: |
560 | OUTPUT: |
354 | RETVAL |
561 | RETVAL |
355 | |
562 | |
356 | SV * |
563 | SV * |
|
|
564 | hv84_to_av (unsigned char *hv84) |
|
|
565 | CODE: |
|
|
566 | { |
|
|
567 | int i = 72 / 3; |
|
|
568 | AV *av = newAV (); |
|
|
569 | |
|
|
570 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
571 | while (i--) |
|
|
572 | { |
|
|
573 | int h = *hv84++; |
|
|
574 | int v1 = *hv84++; |
|
|
575 | int v2 = *hv84++; |
|
|
576 | |
|
|
577 | av_push (av, newSViv (v1)); |
|
|
578 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
579 | av_push (av, newSViv (v2)); |
|
|
580 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
581 | } |
|
|
582 | } |
|
|
583 | OUTPUT: |
|
|
584 | RETVAL |
|
|
585 | |
|
|
586 | ############################################################################# |
|
|
587 | |
|
|
588 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
|
|
589 | |
|
|
590 | SV * |
357 | make_histogram (SV *ar) |
591 | make_histograms (SV *ar) |
358 | CODE: |
592 | CODE: |
359 | { |
593 | { |
360 | int i; |
594 | int i; |
361 | AV *av, *result; |
595 | AV *av, *result; |
362 | |
596 | |
… | |
… | |
405 | RETVAL = newRV_noinc ((SV *)result); |
639 | RETVAL = newRV_noinc ((SV *)result); |
406 | } |
640 | } |
407 | OUTPUT: |
641 | OUTPUT: |
408 | RETVAL |
642 | RETVAL |
409 | |
643 | |
410 | ############################################################################# |
|
|
411 | |
644 | |
412 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
413 | |
|
|
414 | void |
|
|
415 | dump_ascii85 (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 | a85_init (); |
|
|
427 | |
|
|
428 | for (y = 0; y < h; y++) |
|
|
429 | for (x = 0; x < w; x++) |
|
|
430 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
431 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
432 | |
|
|
433 | a85_finish (fp); |
|
|
434 | } |
|
|
435 | |
|
|
436 | void |
|
|
437 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
438 | CODE: |
|
|
439 | { |
|
|
440 | int w = gdk_pixbuf_get_width (pb); |
|
|
441 | int h = gdk_pixbuf_get_height (pb); |
|
|
442 | int x, y, i; |
|
|
443 | guchar *dst; |
|
|
444 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
445 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
446 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
447 | |
|
|
448 | for (y = 0; y < h; y++) |
|
|
449 | for (x = 0; x < w; x++) |
|
|
450 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
451 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
452 | } |
|
|
453 | |
|
|
454 | ############################################################################# |
|
|
455 | |
|
|
456 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
457 | |
|
|
458 | SV * |
|
|
459 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
460 | CODE: |
|
|
461 | { |
|
|
462 | int w = gdk_pixbuf_get_width (pb); |
|
|
463 | int h = gdk_pixbuf_get_height (pb); |
|
|
464 | int x, y; |
|
|
465 | guchar *dst; |
|
|
466 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
467 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
468 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
469 | |
|
|
470 | RETVAL = newSV (6 * 8 * 12 / 8); |
|
|
471 | SvPOK_only (RETVAL); |
|
|
472 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
|
|
473 | |
|
|
474 | dst = SvPVX (RETVAL); |
|
|
475 | |
|
|
476 | /* some primitive error distribution + random dithering */ |
|
|
477 | |
|
|
478 | for (y = 0; y < h; y++) |
|
|
479 | { |
|
|
480 | guchar *p = src + y * sstr; |
|
|
481 | |
|
|
482 | for (x = 0; x < w; x += 2) |
|
|
483 | { |
|
|
484 | unsigned int r, g, b, h, s, v, H, V1, V2; |
|
|
485 | |
|
|
486 | if (bpp == 3) |
|
|
487 | r = *p++, g = *p++, b = *p++; |
|
|
488 | else if (bpp == 1) |
|
|
489 | r = g = b = *p++; |
|
|
490 | else |
|
|
491 | abort (); |
|
|
492 | |
|
|
493 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
494 | |
|
|
495 | H = (h * 15 / 255) << 4; |
|
|
496 | V1 = v; |
|
|
497 | |
|
|
498 | if (bpp == 3) |
|
|
499 | r = *p++, g = *p++, b = *p++; |
|
|
500 | else if (bpp == 1) |
|
|
501 | r = g = b = *p++; |
|
|
502 | else |
|
|
503 | abort (); |
|
|
504 | |
|
|
505 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
506 | |
|
|
507 | H |= h * 15 / 255; |
|
|
508 | V2 = v; |
|
|
509 | |
|
|
510 | *dst++ = H; |
|
|
511 | *dst++ = V1; |
|
|
512 | *dst++ = V2; |
|
|
513 | } |
|
|
514 | } |
|
|
515 | } |
|
|
516 | OUTPUT: |
|
|
517 | RETVAL |
|
|
518 | |
|
|
519 | SV * |
|
|
520 | hv84_to_av (unsigned char *hv84) |
|
|
521 | CODE: |
|
|
522 | { |
|
|
523 | int i = 72 / 3; |
|
|
524 | AV *av = newAV (); |
|
|
525 | |
|
|
526 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
527 | while (i--) |
|
|
528 | { |
|
|
529 | int h = *hv84++; |
|
|
530 | int v1 = *hv84++; |
|
|
531 | int v2 = *hv84++; |
|
|
532 | |
|
|
533 | av_push (av, newSViv (v1)); |
|
|
534 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
535 | av_push (av, newSViv (v2)); |
|
|
536 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
537 | } |
|
|
538 | } |
|
|
539 | OUTPUT: |
|
|
540 | RETVAL |
|
|
541 | |
|
|
542 | |
|
|
543 | |
|
|