… | |
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7 | #include <math.h> |
7 | #include <math.h> |
8 | |
8 | |
9 | #include <magic.h> |
9 | #include <magic.h> |
10 | |
10 | |
11 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
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12 | #include <jerror.h> |
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13 | |
12 | #include <glib.h> |
14 | #include <glib.h> |
13 | #include <gtk/gtk.h> |
15 | #include <gtk/gtk.h> |
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16 | #include <gdk/gdkx.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
17 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | |
18 | |
16 | #include <gperl.h> |
19 | #include <gperl.h> |
17 | #include <gtk2perl.h> |
20 | #include <gtk2perl.h> |
18 | |
21 | |
19 | #include <assert.h> |
22 | #include <assert.h> |
20 | |
23 | |
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24 | #if WEBP |
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25 | #include <webp/demux.h> |
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26 | #include <webp/decode.h> |
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27 | #endif |
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28 | |
21 | #include "perlmulticore.h" |
29 | #include "perlmulticore.h" |
22 | |
30 | |
23 | #define IW 80 /* MUST match Schnauzer.pm! */ |
31 | #define IW 80 /* MUST match Schnauzer.pm! */ |
24 | #define IH 60 /* MUST match Schnauzer.pm! */ |
32 | #define IH 60 /* MUST match Schnauzer.pm! */ |
25 | |
33 | |
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… | |
28 | #define LINELENGTH 240 |
36 | #define LINELENGTH 240 |
29 | |
37 | |
30 | #define ELLIPSIS "\xe2\x80\xa6" |
38 | #define ELLIPSIS "\xe2\x80\xa6" |
31 | |
39 | |
32 | typedef char *octet_string; |
40 | typedef char *octet_string; |
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41 | |
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42 | static magic_t magic_cookie[2]; /* !mime, mime */ |
33 | |
43 | |
34 | struct jpg_err_mgr |
44 | struct jpg_err_mgr |
35 | { |
45 | { |
36 | struct jpeg_error_mgr err; |
46 | struct jpeg_error_mgr err; |
37 | jmp_buf setjmp_buffer; |
47 | jmp_buf setjmp_buffer; |
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… | |
191 | |
201 | |
192 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
202 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
193 | } |
203 | } |
194 | |
204 | |
195 | ///////////////////////////////////////////////////////////////////////////// |
205 | ///////////////////////////////////////////////////////////////////////////// |
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206 | // memory source for libjpeg |
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207 | |
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208 | static void cv_ms_init (j_decompress_ptr cinfo) |
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209 | { |
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210 | } |
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211 | |
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212 | static void cv_ms_term (j_decompress_ptr cinfo) |
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213 | { |
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214 | } |
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215 | |
|
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216 | static boolean cv_ms_fill (j_decompress_ptr cinfo) |
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217 | { |
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218 | // unexpected EOF, warn and generate fake EOI marker |
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219 | |
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220 | WARNMS (cinfo, JWRN_JPEG_EOF); |
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221 | |
|
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222 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
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223 | |
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224 | static const JOCTET eoi[] = { 0xFF, JPEG_EOI }; |
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225 | |
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226 | src->next_input_byte = eoi; |
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227 | src->bytes_in_buffer = sizeof (eoi); |
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228 | |
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229 | return TRUE; |
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230 | } |
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231 | |
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232 | static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) |
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233 | { |
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234 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
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235 | |
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236 | src->next_input_byte += num_bytes; |
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237 | src->bytes_in_buffer -= num_bytes; |
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238 | } |
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239 | |
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240 | static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) |
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241 | { |
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242 | struct jpeg_source_mgr *src; |
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243 | |
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244 | if (!cinfo->src) |
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245 | cinfo->src = (struct jpeg_source_mgr *) |
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246 | (*cinfo->mem->alloc_small) ( |
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247 | (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr) |
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248 | ); |
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249 | |
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250 | src = (struct jpeg_source_mgr *)cinfo->src; |
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251 | src->init_source = cv_ms_init; |
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252 | src->fill_input_buffer = cv_ms_fill; |
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253 | src->skip_input_data = cv_ms_skip; |
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254 | src->resync_to_restart = jpeg_resync_to_restart; |
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255 | src->term_source = cv_ms_term; |
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256 | src->next_input_byte = (JOCTET *)buf; |
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257 | src->bytes_in_buffer = buflen; |
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258 | } |
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259 | |
|
|
260 | ///////////////////////////////////////////////////////////////////////////// |
196 | |
261 | |
197 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
262 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
198 | |
263 | |
199 | PROTOTYPES: ENABLE |
264 | PROTOTYPES: ENABLE |
200 | |
265 | |
|
|
266 | # calculate the common prefix length of two strings |
201 | # missing function in perl. really :) |
267 | # missing function in perl. really :) |
202 | int |
268 | int |
203 | common_prefix_length (a, b) |
269 | common_prefix_length (a, b) |
204 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
270 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
205 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
271 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
… | |
… | |
214 | |
280 | |
215 | OUTPUT: |
281 | OUTPUT: |
216 | RETVAL |
282 | RETVAL |
217 | |
283 | |
218 | const char * |
284 | const char * |
219 | magic (octet_string path) |
285 | magic (SV *path_or_data) |
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286 | ALIAS: |
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287 | magic = 0 |
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288 | magic_mime = 1 |
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289 | magic_buffer = 2 |
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290 | magic_buffer_mime = 3 |
220 | CODE: |
291 | CODE: |
221 | { |
292 | { |
222 | static magic_t cookie; |
293 | STRLEN len; |
|
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294 | char *data = SvPVbyte (path_or_data, len); |
223 | |
295 | |
224 | if (!cookie) |
296 | if (!magic_cookie[0]) |
225 | { |
297 | { |
226 | cookie = magic_open (MAGIC_SYMLINK); |
298 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
227 | |
299 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
228 | if (cookie) |
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229 | magic_load (cookie, 0); |
300 | magic_load (magic_cookie[0], 0); |
230 | else |
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231 | XSRETURN_UNDEF; |
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232 | } |
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233 | |
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234 | RETVAL = magic_file (cookie, path); |
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235 | } |
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236 | OUTPUT: |
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237 | RETVAL |
|
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238 | |
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239 | const char * |
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240 | magic_mime (octet_string path) |
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241 | CODE: |
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242 | { |
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243 | static magic_t cookie; |
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244 | |
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245 | if (!cookie) |
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246 | { |
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247 | cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK); |
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248 | |
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249 | if (cookie) |
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250 | magic_load (cookie, 0); |
301 | magic_load (magic_cookie[1], 0); |
251 | else |
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252 | XSRETURN_UNDEF; |
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253 | } |
302 | } |
254 | |
303 | |
255 | perlinterp_release (); |
304 | perlinterp_release (); |
256 | RETVAL = magic_file (cookie, path); |
305 | |
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306 | RETVAL = ix & 2 |
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307 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
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308 | : magic_file (magic_cookie[ix & 1], data); |
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309 | |
257 | perlinterp_acquire (); |
310 | perlinterp_acquire (); |
258 | } |
311 | } |
259 | OUTPUT: |
312 | OUTPUT: |
260 | RETVAL |
313 | RETVAL |
261 | |
314 | |
… | |
… | |
316 | : angle); |
369 | : angle); |
317 | perlinterp_acquire (); |
370 | perlinterp_acquire (); |
318 | OUTPUT: |
371 | OUTPUT: |
319 | RETVAL |
372 | RETVAL |
320 | |
373 | |
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374 | const char * |
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375 | filetype (SV *image_data) |
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376 | CODE: |
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377 | { |
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378 | STRLEN data_len; |
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379 | U8 *data = SvPVbyte (image_data, data_len); |
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380 | |
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381 | if (data_len >= 20 |
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382 | && data[0] == 0xff |
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383 | && data[1] == 0xd8 |
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384 | && data[2] == 0xff) |
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385 | RETVAL = "jpg"; |
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386 | else if (data_len >= 12 |
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387 | && data[ 0] == (U8)'R' |
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388 | && data[ 1] == (U8)'I' |
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389 | && data[ 2] == (U8)'F' |
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390 | && data[ 3] == (U8)'F' |
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391 | && data[ 8] == (U8)'W' |
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392 | && data[ 9] == (U8)'E' |
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393 | && data[10] == (U8)'B' |
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394 | && data[11] == (U8)'P') |
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395 | RETVAL = "webp"; |
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396 | else if (data_len >= 16 |
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397 | && data[ 0] == 0x89 |
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398 | && data[ 1] == (U8)'P' |
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399 | && data[ 2] == (U8)'N' |
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400 | && data[ 3] == (U8)'G' |
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401 | && data[ 4] == 0x0d |
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402 | && data[ 5] == 0x0a |
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403 | && data[ 6] == 0x1a |
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404 | && data[ 7] == 0x0a) |
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405 | RETVAL = "png"; |
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406 | else |
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407 | RETVAL = "other"; |
|
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408 | } |
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409 | OUTPUT: |
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410 | RETVAL |
|
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411 | |
321 | GdkPixbuf_noinc * |
412 | GdkPixbuf_noinc * |
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413 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
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414 | CODE: |
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415 | { |
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416 | #if WEBP |
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417 | STRLEN data_size; |
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418 | int alpha; |
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419 | WebPData data; |
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420 | WebPDemuxer *demux; |
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421 | WebPIterator iter; |
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422 | WebPDecoderConfig config; |
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423 | int inw, inh; |
|
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424 | |
|
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425 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
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426 | data.size = data_size; |
|
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427 | |
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428 | perlinterp_release (); |
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429 | |
|
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430 | RETVAL = 0; |
|
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431 | |
|
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432 | if (!(demux = WebPDemux (&data))) |
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433 | goto err_demux; |
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434 | |
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435 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
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436 | goto err_iter; |
|
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437 | |
|
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438 | if (!WebPInitDecoderConfig (&config)) |
|
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439 | goto err_iter; |
|
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440 | |
|
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441 | config.options.use_threads = 1; |
|
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442 | |
|
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443 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
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444 | goto err_iter; |
|
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445 | |
|
|
446 | inw = config.input.width; |
|
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447 | inh = config.input.height; |
|
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448 | |
|
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449 | if (thumbnail) |
|
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450 | { |
|
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451 | if (inw * ih > inh * iw) |
|
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452 | ih = (iw * inh + inw - 1) / inw; |
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453 | else |
|
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454 | iw = (ih * inw + inh - 1) / inh; |
|
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455 | |
|
|
456 | config.options.bypass_filtering = 1; |
|
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457 | config.options.no_fancy_upsampling = 1; |
|
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458 | |
|
|
459 | config.options.use_scaling = 1; |
|
|
460 | config.options.scaled_width = iw; |
|
|
461 | config.options.scaled_height = ih; |
|
|
462 | } |
|
|
463 | else |
|
|
464 | { |
|
|
465 | iw = inw; |
|
|
466 | ih = inh; |
|
|
467 | } |
|
|
468 | |
|
|
469 | alpha = !!config.input.has_alpha; |
|
|
470 | |
|
|
471 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
472 | if (!RETVAL) |
|
|
473 | goto err_iter; |
|
|
474 | |
|
|
475 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
476 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
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477 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
478 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
479 | config.output.is_external_memory = 1; |
|
|
480 | |
|
|
481 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
|
|
482 | { |
|
|
483 | g_object_unref (RETVAL); |
|
|
484 | RETVAL = 0; |
|
|
485 | goto err_iter; |
|
|
486 | } |
|
|
487 | |
|
|
488 | err_iter: |
|
|
489 | WebPDemuxReleaseIterator (&iter); |
|
|
490 | err_demux: |
|
|
491 | WebPDemuxDelete (demux); |
|
|
492 | |
|
|
493 | perlinterp_acquire (); |
|
|
494 | #else |
|
|
495 | croak ("load_webp: webp not enabled at compile time"); |
|
|
496 | #endif |
|
|
497 | } |
|
|
498 | OUTPUT: |
|
|
499 | RETVAL |
|
|
500 | |
|
|
501 | GdkPixbuf_noinc * |
322 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
502 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
323 | CODE: |
503 | CODE: |
324 | { |
504 | { |
325 | struct jpeg_decompress_struct cinfo; |
505 | struct jpeg_decompress_struct cinfo; |
326 | struct jpg_err_mgr jerr; |
506 | struct jpg_err_mgr jerr; |
327 | guchar *data; |
|
|
328 | int rs; |
507 | int rs; |
329 | FILE *fp; |
|
|
330 | volatile GdkPixbuf *pb = 0; |
508 | volatile GdkPixbuf *pb = 0; |
|
|
509 | STRLEN data_len; |
|
|
510 | guchar *data = SvPVbyte (image_data, data_len); |
331 | |
511 | |
332 | RETVAL = 0; |
512 | RETVAL = 0; |
333 | |
|
|
334 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
|
|
335 | |
|
|
336 | if (!fp) |
|
|
337 | XSRETURN_UNDEF; |
|
|
338 | |
513 | |
339 | perlinterp_release (); |
514 | perlinterp_release (); |
340 | |
515 | |
341 | cinfo.err = jpeg_std_error (&jerr.err); |
516 | cinfo.err = jpeg_std_error (&jerr.err); |
342 | |
517 | |
343 | jerr.err.error_exit = cv_error_exit; |
518 | jerr.err.error_exit = cv_error_exit; |
344 | jerr.err.output_message = cv_error_output; |
519 | jerr.err.output_message = cv_error_output; |
345 | |
520 | |
346 | if ((rs = setjmp (jerr.setjmp_buffer))) |
521 | if ((rs = setjmp (jerr.setjmp_buffer))) |
347 | { |
522 | { |
348 | fclose (fp); |
|
|
349 | jpeg_destroy_decompress (&cinfo); |
523 | jpeg_destroy_decompress (&cinfo); |
350 | |
524 | |
351 | if (pb) |
525 | if (pb) |
352 | g_object_unref ((gpointer)pb); |
526 | g_object_unref ((gpointer)pb); |
353 | |
527 | |
354 | perlinterp_acquire (); |
528 | perlinterp_acquire (); |
355 | XSRETURN_UNDEF; |
529 | XSRETURN_UNDEF; |
356 | } |
530 | } |
357 | |
531 | |
|
|
532 | if (!data_len) |
|
|
533 | longjmp (jerr.setjmp_buffer, 4); |
|
|
534 | |
358 | jpeg_create_decompress (&cinfo); |
535 | jpeg_create_decompress (&cinfo); |
|
|
536 | cv_jpeg_mem_src (&cinfo, data, data_len); |
359 | |
537 | |
360 | jpeg_stdio_src (&cinfo, fp); |
|
|
361 | jpeg_read_header (&cinfo, TRUE); |
538 | jpeg_read_header (&cinfo, TRUE); |
362 | |
539 | |
363 | cinfo.dct_method = JDCT_DEFAULT; |
540 | cinfo.dct_method = JDCT_DEFAULT; |
364 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
541 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
365 | cinfo.do_block_smoothing = FALSE; |
542 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
444 | data += 4; |
621 | data += 4; |
445 | } |
622 | } |
446 | } |
623 | } |
447 | |
624 | |
448 | jpeg_finish_decompress (&cinfo); |
625 | jpeg_finish_decompress (&cinfo); |
449 | fclose (fp); |
|
|
450 | jpeg_destroy_decompress (&cinfo); |
626 | jpeg_destroy_decompress (&cinfo); |
451 | perlinterp_acquire (); |
627 | perlinterp_acquire (); |
452 | } |
628 | } |
453 | OUTPUT: |
629 | OUTPUT: |
454 | RETVAL |
630 | RETVAL |