diff options
Diffstat (limited to 'source/pdf')
| -rw-r--r-- | source/pdf/pdf-colorspace.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/source/pdf/pdf-colorspace.c b/source/pdf/pdf-colorspace.c index e515b30a..de138f90 100644 --- a/source/pdf/pdf-colorspace.c +++ b/source/pdf/pdf-colorspace.c @@ -6,17 +6,42 @@ static fz_colorspace * load_icc_based(pdf_document *doc, pdf_obj *dict) { int n; + pdf_obj *obj; + fz_context *ctx = doc->ctx; n = pdf_to_int(pdf_dict_gets(dict, "N")); + obj = pdf_dict_gets(dict, "Alternate"); + + if (obj) + { + fz_colorspace *cs_alt = NULL; + + fz_try(ctx) + { + cs_alt = pdf_load_colorspace(doc, obj); + if (cs_alt->n != n) + { + fz_drop_colorspace(ctx, cs_alt); + fz_throw(ctx, FZ_ERROR_GENERIC, "ICCBased /Alternate colorspace must have %d components", n); + } + } + fz_catch(ctx) + { + cs_alt = NULL; + } + + if (cs_alt) + return cs_alt; + } switch (n) { - case 1: return fz_device_gray(doc->ctx); - case 3: return fz_device_rgb(doc->ctx); - case 4: return fz_device_cmyk(doc->ctx); + case 1: return fz_device_gray(ctx); + case 3: return fz_device_rgb(ctx); + case 4: return fz_device_cmyk(ctx); } - fz_throw(doc->ctx, FZ_ERROR_GENERIC, "syntaxerror: ICCBased must have 1, 3 or 4 components"); + fz_throw(ctx, FZ_ERROR_GENERIC, "syntaxerror: ICCBased must have 1, 3 or 4 components"); return NULL; /* Stupid MSVC */ } @@ -155,6 +180,7 @@ load_indexed(pdf_document *doc, pdf_obj *array) unsigned char *lookup = NULL; fz_var(base); + fz_var(lookup); fz_try(ctx) { |