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author | Robin Watts <robin.watts@artifex.com> | 2013-04-11 14:24:02 +0100 |
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committer | Robin Watts <robin.watts@artifex.com> | 2013-04-11 19:00:39 +0100 |
commit | 12c1466667b47ab3bafe794e0f40b619662b0ac5 (patch) | |
tree | 7eac1fbcdd4754c5f225728112074aa8b8d09350 /fitz/image_jpeg.c | |
parent | 53b5ede268394d651df1f12da490884bf870006a (diff) | |
download | mupdf-12c1466667b47ab3bafe794e0f40b619662b0ac5.tar.xz |
Remove fz_load_jpeg as now unused.
Diffstat (limited to 'fitz/image_jpeg.c')
-rw-r--r-- | fitz/image_jpeg.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/fitz/image_jpeg.c b/fitz/image_jpeg.c index 432ba86d..c6ff2033 100644 --- a/fitz/image_jpeg.c +++ b/fitz/image_jpeg.c @@ -43,109 +43,6 @@ static void skip_input_data(j_decompress_ptr cinfo, long num_bytes) } } -fz_pixmap * -fz_load_jpeg(fz_context *ctx, unsigned char *rbuf, int rlen) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr err; - struct jpeg_source_mgr src; - unsigned char *row[1], *sp, *dp; - fz_colorspace *colorspace; - unsigned int x; - int k; - fz_pixmap *image = NULL; - - fz_var(image); - fz_var(row); - - row[0] = NULL; - - fz_try(ctx) - { - cinfo.client_data = ctx; - cinfo.err = jpeg_std_error(&err); - err.error_exit = error_exit; - - jpeg_create_decompress(&cinfo); - - cinfo.src = &src; - src.init_source = init_source; - src.fill_input_buffer = fill_input_buffer; - src.skip_input_data = skip_input_data; - src.resync_to_restart = jpeg_resync_to_restart; - src.term_source = term_source; - src.next_input_byte = rbuf; - src.bytes_in_buffer = rlen; - - jpeg_read_header(&cinfo, 1); - - jpeg_start_decompress(&cinfo); - - if (cinfo.output_components == 1) - colorspace = fz_device_gray; - else if (cinfo.output_components == 3) - colorspace = fz_device_rgb; - else if (cinfo.output_components == 4) - colorspace = fz_device_cmyk; - else - fz_throw(ctx, "bad number of components in jpeg: %d", cinfo.output_components); - - image = fz_new_pixmap(ctx, colorspace, cinfo.output_width, cinfo.output_height); - - if (cinfo.density_unit == 1) - { - image->xres = cinfo.X_density; - image->yres = cinfo.Y_density; - } - else if (cinfo.density_unit == 2) - { - image->xres = cinfo.X_density * 254 / 100; - image->yres = cinfo.Y_density * 254 / 100; - } - - if (image->xres <= 0) image->xres = 72; - if (image->yres <= 0) image->yres = 72; - - fz_clear_pixmap(ctx, image); - - row[0] = fz_malloc(ctx, cinfo.output_components * cinfo.output_width); - dp = image->samples; - while (cinfo.output_scanline < cinfo.output_height) - { - jpeg_read_scanlines(&cinfo, row, 1); - sp = row[0]; - for (x = 0; x < cinfo.output_width; x++) - { - for (k = 0; k < cinfo.output_components; k++) - *dp++ = *sp++; - *dp++ = 255; - } - } - } - fz_always(ctx) - { - fz_free(ctx, row[0]); - row[0] = NULL; - fz_try(ctx) - { - /* Annoyingly, jpeg_finish_decompress can throw */ - jpeg_finish_decompress(&cinfo); - } - fz_catch(ctx) - { - /* Ignore any errors here */ - } - jpeg_destroy_decompress(&cinfo); - } - fz_catch(ctx) - { - fz_drop_pixmap(ctx, image); - fz_rethrow(ctx); - } - - return image; -} - void fz_load_jpeg_info(fz_context *ctx, unsigned char *rbuf, int rlen, int *xp, int *yp, int *xresp, int *yresp, fz_colorspace **cspacep) { |