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9 | #include <magic.h> |
9 | #include <magic.h> |
10 | |
10 | |
11 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
12 | #include <glib.h> |
12 | #include <glib.h> |
13 | #include <gtk/gtk.h> |
13 | #include <gtk/gtk.h> |
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|
14 | #include <gdk/gdkx.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | |
16 | |
16 | #include <gperl.h> |
17 | #include <gperl.h> |
17 | #include <gtk2perl.h> |
18 | #include <gtk2perl.h> |
18 | |
19 | |
19 | #include <assert.h> |
20 | #include <assert.h> |
20 | |
21 | |
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|
22 | #if WEBP |
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23 | #include <webp/decode.h> |
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|
24 | #endif |
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|
25 | |
21 | #include "perlmulticore.h" |
26 | #include "perlmulticore.h" |
22 | |
27 | |
23 | #define IW 80 /* MUST match Schnauzer.pm! */ |
28 | #define IW 80 /* MUST match Schnauzer.pm! */ |
24 | #define IH 60 /* MUST match Schnauzer.pm! */ |
29 | #define IH 60 /* MUST match Schnauzer.pm! */ |
25 | |
30 | |
… | |
… | |
28 | #define LINELENGTH 240 |
33 | #define LINELENGTH 240 |
29 | |
34 | |
30 | #define ELLIPSIS "\xe2\x80\xa6" |
35 | #define ELLIPSIS "\xe2\x80\xa6" |
31 | |
36 | |
32 | typedef char *octet_string; |
37 | typedef char *octet_string; |
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38 | |
|
|
39 | static magic_t magic_cookie[2]; /* !mime, mime */ |
33 | |
40 | |
34 | struct jpg_err_mgr |
41 | struct jpg_err_mgr |
35 | { |
42 | { |
36 | struct jpeg_error_mgr err; |
43 | struct jpeg_error_mgr err; |
37 | jmp_buf setjmp_buffer; |
44 | jmp_buf setjmp_buffer; |
38 | }; |
45 | }; |
39 | |
46 | |
40 | static void |
47 | static void |
41 | cv_error_exit (j_common_ptr cinfo) |
48 | cv_error_exit (j_common_ptr cinfo) |
42 | { |
49 | { |
|
|
50 | cinfo->err->output_message (cinfo); |
43 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
51 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
44 | } |
52 | } |
45 | |
53 | |
46 | static void |
54 | static void |
47 | cv_error_output (j_common_ptr cinfo) |
55 | cv_error_output (j_common_ptr cinfo) |
48 | { |
56 | { |
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57 | char msg[JMSG_LENGTH_MAX]; |
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58 | |
|
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59 | cinfo->err->format_message (cinfo, msg); |
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60 | |
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61 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
49 | return; |
62 | return; |
50 | } |
63 | } |
51 | |
64 | |
52 | static void |
65 | static void |
53 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
66 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
150 | if (!--a85_cnt) |
163 | if (!--a85_cnt) |
151 | { |
164 | { |
152 | a85_cnt = 4; |
165 | a85_cnt = 4; |
153 | if (a85_val) |
166 | if (a85_val) |
154 | { |
167 | { |
155 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
168 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
156 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
169 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
157 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
170 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
158 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
159 | a85_ptr[0] = (a85_val ) + 33; |
172 | a85_ptr[0] = (a85_val ) + 33; |
160 | |
173 | |
161 | a85_ptr += 5; |
174 | a85_ptr += 5; |
162 | } |
175 | } |
… | |
… | |
208 | |
221 | |
209 | OUTPUT: |
222 | OUTPUT: |
210 | RETVAL |
223 | RETVAL |
211 | |
224 | |
212 | const char * |
225 | const char * |
213 | magic (octet_string path) |
226 | magic (SV *path_or_data) |
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227 | ALIAS: |
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228 | magic = 0 |
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229 | magic_mime = 1 |
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230 | magic_buffer = 2 |
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231 | magic_buffer_mime = 3 |
214 | CODE: |
232 | CODE: |
215 | { |
233 | { |
216 | static magic_t cookie; |
234 | STRLEN len; |
217 | |
235 | char *data = SvPVbyte (path_or_data, len); |
218 | if (!cookie) |
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219 | { |
|
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220 | cookie = magic_open (MAGIC_SYMLINK); |
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221 | |
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222 | if (cookie) |
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223 | magic_load (cookie, 0); |
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224 | else |
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225 | XSRETURN_UNDEF; |
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226 | } |
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227 | |
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228 | RETVAL = magic_file (cookie, path); |
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229 | } |
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230 | OUTPUT: |
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231 | RETVAL |
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232 | |
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233 | const char * |
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234 | magic_mime (octet_string path) |
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235 | CODE: |
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236 | { |
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237 | static magic_t cookie; |
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238 | |
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239 | if (!cookie) |
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240 | { |
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241 | cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK); |
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242 | |
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243 | if (cookie) |
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244 | magic_load (cookie, 0); |
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245 | else |
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246 | XSRETURN_UNDEF; |
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247 | } |
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248 | |
236 | |
249 | perlinterp_release (); |
237 | perlinterp_release (); |
250 | RETVAL = magic_file (cookie, path); |
238 | |
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239 | if (!magic_cookie[0]) |
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240 | { |
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241 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
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242 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME); |
|
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243 | } |
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244 | |
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245 | RETVAL = ix & 2 |
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246 | ? magic_buffer (magic_cookie[ix], data, len) |
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247 | : magic_file (magic_cookie[ix], data); |
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248 | |
251 | perlinterp_acquire (); |
249 | perlinterp_acquire (); |
252 | } |
250 | } |
253 | OUTPUT: |
251 | OUTPUT: |
254 | RETVAL |
252 | RETVAL |
255 | |
253 | |
… | |
… | |
311 | perlinterp_acquire (); |
309 | perlinterp_acquire (); |
312 | OUTPUT: |
310 | OUTPUT: |
313 | RETVAL |
311 | RETVAL |
314 | |
312 | |
315 | GdkPixbuf_noinc * |
313 | GdkPixbuf_noinc * |
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314 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
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315 | CODE: |
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316 | { |
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317 | #if WEBP |
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318 | guchar *data; |
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319 | STRLEN data_size; |
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320 | int alpha; |
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321 | WebPDecoderConfig config; |
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322 | int inw, inh; |
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323 | |
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324 | data = SvPVbyte (image_data, data_size); |
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325 | |
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326 | perlinterp_release (); |
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327 | |
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328 | RETVAL = 0; |
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329 | |
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330 | if (!WebPInitDecoderConfig (&config)) |
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331 | goto err; |
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332 | |
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333 | config.options.use_threads = 1; |
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334 | |
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335 | if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) |
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336 | goto err; |
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337 | |
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338 | inw = config.input.width; |
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339 | inh = config.input.height; |
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340 | |
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341 | if (thumbnail) |
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342 | { |
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343 | if (inw * ih > inh * iw) |
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344 | ih = (iw * inh + inw - 1) / inw; |
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345 | else |
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346 | iw = (ih * inw + inh - 1) / inh; |
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347 | |
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348 | config.options.bypass_filtering = 1; |
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349 | config.options.no_fancy_upsampling = 1; |
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350 | |
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351 | config.options.use_scaling = 1; |
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352 | config.options.scaled_width = iw; |
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353 | config.options.scaled_height = ih; |
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354 | } |
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355 | else |
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356 | { |
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357 | iw = inw; |
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358 | ih = inh; |
|
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359 | } |
|
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360 | |
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361 | alpha = config.input.has_alpha; |
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362 | |
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363 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); |
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364 | if (!RETVAL) |
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365 | goto err; |
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366 | |
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367 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
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368 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
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369 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
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370 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
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371 | config.output.is_external_memory = 1; |
|
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372 | |
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373 | if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) |
|
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374 | { |
|
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375 | g_object_unref (RETVAL); |
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376 | RETVAL = 0; |
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377 | goto err; |
|
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378 | } |
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379 | |
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380 | err: |
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381 | perlinterp_acquire (); |
|
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382 | #else |
|
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383 | croak ("load_webp: webp not enabled at compile time"); |
|
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384 | #endif |
|
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385 | } |
|
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386 | OUTPUT: |
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387 | RETVAL |
|
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388 | |
|
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389 | GdkPixbuf_noinc * |
316 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
390 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
317 | CODE: |
391 | CODE: |
318 | { |
392 | { |
319 | struct jpeg_decompress_struct cinfo; |
393 | struct jpeg_decompress_struct cinfo; |
320 | struct jpg_err_mgr jerr; |
394 | struct jpg_err_mgr jerr; |
… | |
… | |
377 | cinfo.scale_denom <<= 1; |
451 | cinfo.scale_denom <<= 1; |
378 | jpeg_calc_output_dimensions (&cinfo); |
452 | jpeg_calc_output_dimensions (&cinfo); |
379 | } |
453 | } |
380 | } |
454 | } |
381 | |
455 | |
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456 | if (cinfo.output_components != 3) |
|
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457 | longjmp (jerr.setjmp_buffer, 3); |
|
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458 | |
|
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459 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
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460 | { |
|
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461 | cinfo.out_color_space = JCS_CMYK; |
|
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462 | cinfo.output_components = 4; |
|
|
463 | } |
|
|
464 | |
382 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
465 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
383 | if (!RETVAL) |
466 | if (!RETVAL) |
384 | longjmp (jerr.setjmp_buffer, 2); |
467 | longjmp (jerr.setjmp_buffer, 2); |
385 | |
468 | |
386 | data = gdk_pixbuf_get_pixels (RETVAL); |
469 | data = gdk_pixbuf_get_pixels (RETVAL); |
387 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
470 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
388 | |
|
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389 | if (cinfo.output_components != 3) |
|
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390 | longjmp (jerr.setjmp_buffer, 3); |
|
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391 | |
471 | |
392 | jpeg_start_decompress (&cinfo); |
472 | jpeg_start_decompress (&cinfo); |
393 | |
473 | |
394 | while (cinfo.output_scanline < cinfo.output_height) |
474 | while (cinfo.output_scanline < cinfo.output_height) |
395 | { |
475 | { |
… | |
… | |
400 | rp [1] = (guchar *)rp [0] + rs; |
480 | rp [1] = (guchar *)rp [0] + rs; |
401 | rp [2] = (guchar *)rp [1] + rs; |
481 | rp [2] = (guchar *)rp [1] + rs; |
402 | rp [3] = (guchar *)rp [2] + rs; |
482 | rp [3] = (guchar *)rp [2] + rs; |
403 | |
483 | |
404 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
484 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
|
|
485 | } |
|
|
486 | |
|
|
487 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
488 | { |
|
|
489 | guchar *end = data + cinfo.output_height * rs; |
|
|
490 | |
|
|
491 | while (data < end) |
|
|
492 | { |
|
|
493 | U32 c = data [0]; |
|
|
494 | U32 m = data [1]; |
|
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495 | U32 y = data [2]; |
|
|
496 | U32 k = data [3]; |
|
|
497 | |
|
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498 | if (0) |
|
|
499 | if (cinfo.Adobe_transform == 2) |
|
|
500 | { |
|
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501 | c ^= 0xff; |
|
|
502 | m ^= 0xff; |
|
|
503 | y ^= 0xff; |
|
|
504 | k ^= 0xff; |
|
|
505 | } |
|
|
506 | |
|
|
507 | data [0] = (c * k + 0x80) / 0xff; |
|
|
508 | data [1] = (m * k + 0x80) / 0xff; |
|
|
509 | data [2] = (y * k + 0x80) / 0xff; |
|
|
510 | data [3] = 0xff; |
|
|
511 | |
|
|
512 | data += 4; |
|
|
513 | } |
405 | } |
514 | } |
406 | |
515 | |
407 | jpeg_finish_decompress (&cinfo); |
516 | jpeg_finish_decompress (&cinfo); |
408 | fclose (fp); |
517 | fclose (fp); |
409 | jpeg_destroy_decompress (&cinfo); |
518 | jpeg_destroy_decompress (&cinfo); |