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2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include <string.h> |
5 | #include <string.h> |
6 | #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> |
7 | |
10 | |
8 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
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12 | #include <glib.h> |
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13 | #include <gtk/gtk.h> |
9 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
10 | |
15 | |
11 | #include <gperl.h> |
16 | #include <gperl.h> |
12 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
13 | |
18 | |
14 | #define IW 80 /* MUST match Schnauer.pm! */ |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
15 | #define IH 60 /* MUST match Schnauer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
16 | |
21 | |
17 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
18 | |
23 | |
19 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
20 | |
25 | |
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124 | |
129 | |
125 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
130 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
126 | |
131 | |
127 | PROTOTYPES: ENABLE |
132 | PROTOTYPES: ENABLE |
128 | |
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 | |
129 | GdkPixbuf_noinc * |
206 | GdkPixbuf_noinc * |
130 | transpose (GdkPixbuf *pb) |
207 | dealpha_expose (GdkPixbuf *pb) |
131 | CODE: |
208 | CODE: |
132 | { |
209 | { |
133 | int w = gdk_pixbuf_get_width (pb); |
210 | int w = gdk_pixbuf_get_width (pb); |
134 | int h = gdk_pixbuf_get_height (pb); |
211 | int h = gdk_pixbuf_get_height (pb); |
135 | int bpp = gdk_pixbuf_get_n_channels (pb); |
212 | int bpp = gdk_pixbuf_get_n_channels (pb); |
136 | int x, y, i; |
213 | int x, y, i; |
137 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
214 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
138 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
215 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
139 | |
216 | |
140 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
217 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
141 | |
218 | |
142 | dst = gdk_pixbuf_get_pixels (RETVAL); |
219 | dst = gdk_pixbuf_get_pixels (RETVAL); |
143 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
220 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
144 | |
221 | |
145 | for (y = 0; y < h; y++) |
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146 | for (x = 0; x < w; x++) |
222 | for (x = 0; x < w; x++) |
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223 | for (y = 0; y < h; y++) |
147 | for (i = 0; i < bpp; i++) |
224 | for (i = 0; i < 3; i++) |
148 | 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]; |
149 | } |
226 | } |
150 | OUTPUT: |
227 | OUTPUT: |
151 | RETVAL |
228 | RETVAL |
152 | |
229 | |
153 | GdkPixbuf_noinc * |
230 | GdkPixbuf_noinc * |
154 | flop (GdkPixbuf *pb) |
231 | rotate (GdkPixbuf *pb, int angle) |
155 | CODE: |
232 | CODE: |
156 | { |
233 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
157 | int w = gdk_pixbuf_get_width (pb); |
234 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
158 | int h = gdk_pixbuf_get_height (pb); |
235 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
159 | int bpp = gdk_pixbuf_get_n_channels (pb); |
236 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
160 | int x, y, i; |
237 | : angle); |
161 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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162 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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163 | |
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164 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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165 | |
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166 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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167 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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168 | |
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169 | for (y = 0; y < h; y++) |
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170 | for (x = 0; x < w; x++) |
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171 | for (i = 0; i < bpp; i++) |
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172 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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173 | } |
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174 | OUTPUT: |
238 | OUTPUT: |
175 | RETVAL |
239 | RETVAL |
176 | |
240 | |
177 | GdkPixbuf_noinc * |
241 | GdkPixbuf_noinc * |
178 | load_jpeg (char *path, int thumbnail=0) |
242 | load_jpeg (SV *path, int thumbnail=0) |
179 | CODE: |
243 | CODE: |
180 | { |
244 | { |
181 | struct jpeg_decompress_struct cinfo; |
245 | struct jpeg_decompress_struct cinfo; |
182 | struct jpg_err_mgr jerr; |
246 | struct jpg_err_mgr jerr; |
183 | guchar *data; |
247 | guchar *data; |
184 | int rs; |
248 | int rs; |
185 | FILE *fp; |
249 | FILE *fp; |
186 | volatile GdkPixbuf *pb = 0; |
250 | volatile GdkPixbuf *pb = 0; |
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251 | |
187 | RETVAL = 0; |
252 | RETVAL = 0; |
188 | |
253 | |
189 | if (!(fp = fopen (path, "rb"))) |
254 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
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255 | |
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256 | if (!fp) |
190 | XSRETURN_UNDEF; |
257 | XSRETURN_UNDEF; |
191 | |
258 | |
192 | cinfo.err = jpeg_std_error (&jerr.err); |
259 | cinfo.err = jpeg_std_error (&jerr.err); |
193 | |
260 | |
194 | jerr.err.error_exit = cv_error_exit; |
261 | jerr.err.error_exit = cv_error_exit; |
… | |
… | |
225 | { |
292 | { |
226 | cinfo.dct_method = JDCT_FASTEST; |
293 | cinfo.dct_method = JDCT_FASTEST; |
227 | cinfo.do_fancy_upsampling = FALSE; |
294 | cinfo.do_fancy_upsampling = FALSE; |
228 | |
295 | |
229 | while (cinfo.scale_denom < 8 |
296 | while (cinfo.scale_denom < 8 |
230 | && (cinfo.output_width >> 1) >= IW |
297 | && cinfo.output_width >= IW*4 |
231 | && (cinfo.output_height >> 1) >= IH) |
298 | && cinfo.output_height >= IH*4) |
232 | { |
299 | { |
233 | cinfo.scale_denom <<= 1; |
300 | cinfo.scale_denom <<= 1; |
234 | jpeg_calc_output_dimensions (&cinfo); |
301 | jpeg_calc_output_dimensions (&cinfo); |
235 | } |
302 | } |
236 | } |
303 | } |
… | |
… | |
265 | jpeg_destroy_decompress (&cinfo); |
332 | jpeg_destroy_decompress (&cinfo); |
266 | } |
333 | } |
267 | OUTPUT: |
334 | OUTPUT: |
268 | RETVAL |
335 | RETVAL |
269 | |
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 (w && h) |
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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 | |
270 | ############################################################################# |
381 | ############################################################################# |
271 | |
382 | |
272 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
383 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
273 | |
384 | |
274 | SV * |
385 | SV * |
275 | foldcase (SV *pathsv) |
386 | foldcase (SV *pathsv) |
276 | PROTOTYPE: $ |
387 | PROTOTYPE: $ |
277 | CODE: |
388 | CODE: |
278 | { |
389 | { |
279 | STRLEN plen; |
390 | STRLEN plen; |
280 | U8 *path = SvPVutf8 (pathsv, plen); |
391 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
281 | U8 *pend = path + plen; |
392 | U8 *pend = path + plen; |
282 | U8 dst [plen * 6 * 3], *dstp = dst; |
393 | U8 dst [plen * 6 * 3], *dstp = dst; |
283 | |
394 | |
284 | while (path < pend) |
395 | while (path < pend) |
285 | { |
396 | { |
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397 | U8 ch = *path; |
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398 | |
286 | if (*path >= '0' && *path <= '9') |
399 | if (ch >= 'a' && ch <= 'z') |
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400 | *dstp++ = *path++; |
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401 | else if (ch >= '0' && ch <= '9') |
287 | { |
402 | { |
288 | STRLEN el, nl = 0; |
403 | STRLEN el, nl = 0; |
289 | while (*path >= '0' && *path <= '9') |
404 | while (*path >= '0' && *path <= '9' && path < pend) |
290 | path++, nl++; |
405 | path++, nl++; |
291 | |
406 | |
292 | for (el = nl; el < 6; el++) |
407 | for (el = nl; el < 6; el++) |
293 | *dstp++ = '0'; |
408 | *dstp++ = '0'; |
294 | |
409 | |
… | |
… | |
302 | dstp += cl; |
417 | dstp += cl; |
303 | path += is_utf8_char (path); |
418 | path += is_utf8_char (path); |
304 | } |
419 | } |
305 | } |
420 | } |
306 | |
421 | |
307 | RETVAL = newSVpvn (dst, dstp - dst); |
422 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
308 | } |
423 | } |
309 | OUTPUT: |
424 | OUTPUT: |
310 | RETVAL |
425 | RETVAL |
311 | |
426 | |
312 | GdkPixbuf_noinc * |
427 | GdkPixbuf_noinc * |
313 | 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: @ |
314 | CODE: |
430 | CODE: |
315 | { |
431 | { |
316 | int x, y; |
432 | int x, y; |
317 | guchar *dst, *d; |
433 | guchar *dst, *d; |
318 | int dstr; |
434 | int dstr; |
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435 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
319 | |
436 | |
320 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
437 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
321 | dst = gdk_pixbuf_get_pixels (RETVAL); |
438 | dst = gdk_pixbuf_get_pixels (RETVAL); |
322 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
439 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
323 | |
440 | |
… | |
… | |
332 | } |
449 | } |
333 | } |
450 | } |
334 | OUTPUT: |
451 | OUTPUT: |
335 | RETVAL |
452 | RETVAL |
336 | |
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 | |
337 | SV * |
502 | SV * |
338 | pb_to_p7 (GdkPixbuf *pb) |
503 | pb_to_hv84 (GdkPixbuf *pb) |
339 | CODE: |
504 | CODE: |
340 | { |
505 | { |
341 | int w = gdk_pixbuf_get_width (pb); |
506 | int w = gdk_pixbuf_get_width (pb); |
342 | int h = gdk_pixbuf_get_height (pb); |
507 | int h = gdk_pixbuf_get_height (pb); |
343 | int x, y; |
508 | int x, y; |
344 | guchar *dst; |
509 | guchar *dst; |
345 | int bpp = gdk_pixbuf_get_n_channels (pb); |
510 | int bpp = gdk_pixbuf_get_n_channels (pb); |
346 | guchar *src = gdk_pixbuf_get_pixels (pb); |
511 | guchar *src = gdk_pixbuf_get_pixels (pb); |
347 | int sstr = gdk_pixbuf_get_rowstride (pb); |
512 | int sstr = gdk_pixbuf_get_rowstride (pb); |
348 | int Er[IW], Eg[IW], Eb[IW]; |
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349 | int seed = 77; |
|
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350 | |
513 | |
351 | RETVAL = newSV (w * h); |
514 | RETVAL = newSV (6 * 8 * 12 / 8); |
352 | SvPOK_only (RETVAL); |
515 | SvPOK_only (RETVAL); |
353 | SvCUR_set (RETVAL, w * h); |
516 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
354 | |
517 | |
355 | dst = SvPVX (RETVAL); |
518 | dst = (guchar *)SvPVX (RETVAL); |
356 | |
|
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357 | memset (Er, 0, sizeof (int) * IW); |
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358 | memset (Eg, 0, sizeof (int) * IW); |
|
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359 | memset (Eb, 0, sizeof (int) * IW); |
|
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360 | |
519 | |
361 | /* some primitive error distribution + random dithering */ |
520 | /* some primitive error distribution + random dithering */ |
362 | |
521 | |
363 | for (y = 0; y < h; y++) |
522 | for (y = 0; y < h; y++) |
364 | { |
523 | { |
365 | int er = 0, eg = 0, eb = 0; |
524 | guchar *p = src + y * sstr; |
366 | |
525 | |
367 | for (x = 0; x < w; x++) |
526 | for (x = 0; x < w; x += 2) |
368 | { |
527 | { |
369 | int r, g, b; |
528 | unsigned int r, g, b, h, s, v, H, V1, V2; |
370 | guchar *p = src + x * bpp + y * sstr; |
|
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371 | |
529 | |
372 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
530 | if (bpp == 3) |
373 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
531 | r = *p++, g = *p++, b = *p++; |
374 | 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 (); |
375 | |
536 | |
376 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
537 | rgb_to_hsv (r, g, b, &h, &s, &v); |
377 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
378 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
379 | |
538 | |
380 | er += p[0] - (r * 255 + 4) / 7; |
539 | H = (h * 15 / 255) << 4; |
381 | eg += p[1] - (g * 255 + 4) / 7; |
540 | V1 = v; |
382 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
383 | |
541 | |
384 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
542 | if (bpp == 3) |
385 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
543 | r = *p++, g = *p++, b = *p++; |
386 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
544 | else if (bpp == 1) |
|
|
545 | r = g = b = *p++; |
|
|
546 | else |
|
|
547 | abort (); |
387 | |
548 | |
388 | *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; |
389 | } |
557 | } |
390 | } |
558 | } |
391 | } |
559 | } |
392 | OUTPUT: |
560 | OUTPUT: |
393 | RETVAL |
561 | RETVAL |
394 | |
562 | |
395 | 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 * |
396 | make_histogram (SV *ar) |
591 | make_histograms (SV *ar) |
397 | CODE: |
592 | CODE: |
398 | { |
593 | { |
399 | int i; |
594 | int i; |
400 | AV *av, *result; |
595 | AV *av, *result; |
401 | |
596 | |
… | |
… | |
444 | RETVAL = newRV_noinc ((SV *)result); |
639 | RETVAL = newRV_noinc ((SV *)result); |
445 | } |
640 | } |
446 | OUTPUT: |
641 | OUTPUT: |
447 | RETVAL |
642 | RETVAL |
448 | |
643 | |
449 | ############################################################################# |
|
|
450 | |
644 | |
451 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
452 | |
|
|
453 | void |
|
|
454 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
455 | CODE: |
|
|
456 | { |
|
|
457 | int w = gdk_pixbuf_get_width (pb); |
|
|
458 | int h = gdk_pixbuf_get_height (pb); |
|
|
459 | int x, y, i; |
|
|
460 | guchar *dst; |
|
|
461 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
462 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
463 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
464 | |
|
|
465 | a85_init (); |
|
|
466 | |
|
|
467 | for (y = 0; y < h; y++) |
|
|
468 | for (x = 0; x < w; x++) |
|
|
469 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
470 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
471 | |
|
|
472 | a85_finish (fp); |
|
|
473 | } |
|
|
474 | |
|
|
475 | void |
|
|
476 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
477 | CODE: |
|
|
478 | { |
|
|
479 | int w = gdk_pixbuf_get_width (pb); |
|
|
480 | int h = gdk_pixbuf_get_height (pb); |
|
|
481 | int x, y, i; |
|
|
482 | guchar *dst; |
|
|
483 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
484 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
485 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
486 | |
|
|
487 | for (y = 0; y < h; y++) |
|
|
488 | for (x = 0; x < w; x++) |
|
|
489 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
490 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
491 | } |
|
|
492 | |
|
|
493 | ############################################################################# |
|
|
494 | |
|
|
495 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
496 | |
|
|
497 | SV * |
|
|
498 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
499 | CODE: |
|
|
500 | { |
|
|
501 | int w = gdk_pixbuf_get_width (pb); |
|
|
502 | int h = gdk_pixbuf_get_height (pb); |
|
|
503 | int x, y; |
|
|
504 | guchar *dst; |
|
|
505 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
506 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
507 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
508 | |
|
|
509 | RETVAL = newSV (6 * 8 * 12 / 8); |
|
|
510 | SvPOK_only (RETVAL); |
|
|
511 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
|
|
512 | |
|
|
513 | dst = SvPVX (RETVAL); |
|
|
514 | |
|
|
515 | /* some primitive error distribution + random dithering */ |
|
|
516 | |
|
|
517 | for (y = 0; y < h; y++) |
|
|
518 | { |
|
|
519 | guchar *p = src + y * sstr; |
|
|
520 | |
|
|
521 | for (x = 0; x < w; x += 2) |
|
|
522 | { |
|
|
523 | unsigned int r, g, b, h, s, v, H, V1, V2; |
|
|
524 | |
|
|
525 | if (bpp == 3) |
|
|
526 | r = *p++, g = *p++, b = *p++; |
|
|
527 | else if (bpp == 1) |
|
|
528 | r = g = b = *p++; |
|
|
529 | else |
|
|
530 | abort (); |
|
|
531 | |
|
|
532 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
533 | |
|
|
534 | H = (h * 15 / 255) << 4; |
|
|
535 | V1 = v; |
|
|
536 | |
|
|
537 | if (bpp == 3) |
|
|
538 | r = *p++, g = *p++, b = *p++; |
|
|
539 | else if (bpp == 1) |
|
|
540 | r = g = b = *p++; |
|
|
541 | else |
|
|
542 | abort (); |
|
|
543 | |
|
|
544 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
545 | |
|
|
546 | H |= h * 15 / 255; |
|
|
547 | V2 = v; |
|
|
548 | |
|
|
549 | *dst++ = H; |
|
|
550 | *dst++ = V1; |
|
|
551 | *dst++ = V2; |
|
|
552 | } |
|
|
553 | } |
|
|
554 | } |
|
|
555 | OUTPUT: |
|
|
556 | RETVAL |
|
|
557 | |
|
|
558 | SV * |
|
|
559 | hv84_to_av (unsigned char *hv84) |
|
|
560 | CODE: |
|
|
561 | { |
|
|
562 | int i = 72 / 3; |
|
|
563 | AV *av = newAV (); |
|
|
564 | |
|
|
565 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
566 | while (i--) |
|
|
567 | { |
|
|
568 | int h = *hv84++; |
|
|
569 | int v1 = *hv84++; |
|
|
570 | int v2 = *hv84++; |
|
|
571 | |
|
|
572 | av_push (av, newSViv (v1)); |
|
|
573 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
574 | av_push (av, newSViv (v2)); |
|
|
575 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
576 | } |
|
|
577 | } |
|
|
578 | OUTPUT: |
|
|
579 | RETVAL |
|
|
580 | |
|
|
581 | |
|
|
582 | |
|
|