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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> |
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21 | |
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22 | #if WEBP |
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23 | #include <webp/decode.h> |
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24 | #endif |
20 | |
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! */ |
… | |
… | |
38 | }; |
43 | }; |
39 | |
44 | |
40 | static void |
45 | static void |
41 | cv_error_exit (j_common_ptr cinfo) |
46 | cv_error_exit (j_common_ptr cinfo) |
42 | { |
47 | { |
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48 | cinfo->err->output_message (cinfo); |
43 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
49 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
44 | } |
50 | } |
45 | |
51 | |
46 | static void |
52 | static void |
47 | cv_error_output (j_common_ptr cinfo) |
53 | cv_error_output (j_common_ptr cinfo) |
48 | { |
54 | { |
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55 | char msg[JMSG_LENGTH_MAX]; |
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56 | |
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57 | cinfo->err->format_message (cinfo, msg); |
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58 | |
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59 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
49 | return; |
60 | return; |
50 | } |
61 | } |
51 | |
62 | |
52 | static void |
63 | static void |
53 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
64 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
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150 | if (!--a85_cnt) |
161 | if (!--a85_cnt) |
151 | { |
162 | { |
152 | a85_cnt = 4; |
163 | a85_cnt = 4; |
153 | if (a85_val) |
164 | if (a85_val) |
154 | { |
165 | { |
155 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
166 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
156 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
167 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
157 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
168 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
158 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
169 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
159 | a85_ptr[0] = (a85_val ) + 33; |
170 | a85_ptr[0] = (a85_val ) + 33; |
160 | |
171 | |
161 | a85_ptr += 5; |
172 | a85_ptr += 5; |
162 | } |
173 | } |
… | |
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311 | perlinterp_acquire (); |
322 | perlinterp_acquire (); |
312 | OUTPUT: |
323 | OUTPUT: |
313 | RETVAL |
324 | RETVAL |
314 | |
325 | |
315 | GdkPixbuf_noinc * |
326 | GdkPixbuf_noinc * |
316 | load_jpeg (SV *path, int thumbnail=0) |
327 | load_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
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328 | CODE: |
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329 | { |
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330 | #if WEBP |
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331 | STRLEN data_size; |
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332 | guchar *data = SvPVbyte (image_data, data_size); |
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333 | int alpha; |
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334 | WebPDecoderConfig config; |
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335 | |
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336 | perlinterp_release (); |
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337 | |
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338 | RETVAL = 0; |
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339 | |
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340 | if (!WebPInitDecoderConfig (&config)) |
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341 | goto err; |
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342 | |
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343 | config.options.use_threads = 1; |
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344 | |
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345 | if (thumbnail) |
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346 | { |
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347 | config.options.bypass_filtering = 1; |
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348 | config.options.no_fancy_upsampling = 1; |
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349 | |
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350 | config.options.use_scaling = 1; |
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351 | config.options.scaled_width = iw; |
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352 | config.options.scaled_height = ih; |
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353 | } |
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354 | else |
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355 | { |
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356 | iw = config.input.width; |
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357 | ih = config.input.height; |
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358 | } |
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359 | |
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360 | if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) |
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361 | goto err; |
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362 | |
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363 | alpha = config.input.has_alpha; |
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364 | |
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365 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); |
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366 | if (!RETVAL) |
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367 | goto err; |
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368 | |
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369 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
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370 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
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371 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
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372 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
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373 | config.output.is_external_memory = 1; |
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374 | |
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375 | if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) |
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376 | { |
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377 | g_object_unref (RETVAL); |
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378 | RETVAL = 0; |
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379 | goto err; |
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380 | } |
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381 | |
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382 | err: |
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383 | perlinterp_acquire (); |
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384 | #else |
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385 | croak ("load_webp: webp not enabled at compile time"); |
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386 | #endif |
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387 | } |
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388 | OUTPUT: |
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389 | RETVAL |
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390 | |
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391 | GdkPixbuf_noinc * |
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392 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
317 | CODE: |
393 | CODE: |
318 | { |
394 | { |
319 | struct jpeg_decompress_struct cinfo; |
395 | struct jpeg_decompress_struct cinfo; |
320 | struct jpg_err_mgr jerr; |
396 | struct jpg_err_mgr jerr; |
321 | guchar *data; |
397 | guchar *data; |
… | |
… | |
369 | { |
445 | { |
370 | cinfo.dct_method = JDCT_FASTEST; |
446 | cinfo.dct_method = JDCT_FASTEST; |
371 | cinfo.do_fancy_upsampling = FALSE; |
447 | cinfo.do_fancy_upsampling = FALSE; |
372 | |
448 | |
373 | while (cinfo.scale_denom < 8 |
449 | while (cinfo.scale_denom < 8 |
374 | && cinfo.output_width >= IW*4 |
450 | && cinfo.output_width >= iw*4 |
375 | && cinfo.output_height >= IH*4) |
451 | && cinfo.output_height >= ih*4) |
376 | { |
452 | { |
377 | cinfo.scale_denom <<= 1; |
453 | cinfo.scale_denom <<= 1; |
378 | jpeg_calc_output_dimensions (&cinfo); |
454 | jpeg_calc_output_dimensions (&cinfo); |
379 | } |
455 | } |
380 | } |
456 | } |
381 | |
457 | |
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458 | if (cinfo.output_components != 3) |
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459 | longjmp (jerr.setjmp_buffer, 3); |
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460 | |
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461 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
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462 | { |
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463 | cinfo.out_color_space = JCS_CMYK; |
|
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464 | cinfo.output_components = 4; |
|
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465 | } |
|
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466 | |
382 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
467 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
383 | if (!RETVAL) |
468 | if (!RETVAL) |
384 | longjmp (jerr.setjmp_buffer, 2); |
469 | longjmp (jerr.setjmp_buffer, 2); |
385 | |
470 | |
386 | data = gdk_pixbuf_get_pixels (RETVAL); |
471 | data = gdk_pixbuf_get_pixels (RETVAL); |
387 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
472 | 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 | |
473 | |
392 | jpeg_start_decompress (&cinfo); |
474 | jpeg_start_decompress (&cinfo); |
393 | |
475 | |
394 | while (cinfo.output_scanline < cinfo.output_height) |
476 | while (cinfo.output_scanline < cinfo.output_height) |
395 | { |
477 | { |
… | |
… | |
400 | rp [1] = (guchar *)rp [0] + rs; |
482 | rp [1] = (guchar *)rp [0] + rs; |
401 | rp [2] = (guchar *)rp [1] + rs; |
483 | rp [2] = (guchar *)rp [1] + rs; |
402 | rp [3] = (guchar *)rp [2] + rs; |
484 | rp [3] = (guchar *)rp [2] + rs; |
403 | |
485 | |
404 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
486 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
|
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487 | } |
|
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488 | |
|
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489 | if (cinfo.out_color_space == JCS_CMYK) |
|
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490 | { |
|
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491 | guchar *end = data + cinfo.output_height * rs; |
|
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492 | |
|
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493 | while (data < end) |
|
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494 | { |
|
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495 | U32 c = data [0]; |
|
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496 | U32 m = data [1]; |
|
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497 | U32 y = data [2]; |
|
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498 | U32 k = data [3]; |
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499 | |
|
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500 | if (0) |
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501 | if (cinfo.Adobe_transform == 2) |
|
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502 | { |
|
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503 | c ^= 0xff; |
|
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504 | m ^= 0xff; |
|
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505 | y ^= 0xff; |
|
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506 | k ^= 0xff; |
|
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507 | } |
|
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508 | |
|
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509 | data [0] = (c * k + 0x80) / 0xff; |
|
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510 | data [1] = (m * k + 0x80) / 0xff; |
|
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511 | data [2] = (y * k + 0x80) / 0xff; |
|
|
512 | data [3] = 0xff; |
|
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513 | |
|
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514 | data += 4; |
|
|
515 | } |
405 | } |
516 | } |
406 | |
517 | |
407 | jpeg_finish_decompress (&cinfo); |
518 | jpeg_finish_decompress (&cinfo); |
408 | fclose (fp); |
519 | fclose (fp); |
409 | jpeg_destroy_decompress (&cinfo); |
520 | jpeg_destroy_decompress (&cinfo); |