diff options
Diffstat (limited to 'source/pdf/pdf-page.c')
| -rw-r--r-- | source/pdf/pdf-page.c | 114 |
1 files changed, 72 insertions, 42 deletions
diff --git a/source/pdf/pdf-page.c b/source/pdf/pdf-page.c index 90f77f1e..5d426455 100644 --- a/source/pdf/pdf-page.c +++ b/source/pdf/pdf-page.c @@ -867,12 +867,66 @@ pdf_new_page(fz_context *ctx, pdf_document *doc) return page; } +static void +pdf_load_default_colorspaces_imp(fz_context *ctx, fz_default_colorspaces *default_cs, pdf_obj *obj) +{ + pdf_obj *cs_obj; + + /* The spec says to ignore any colors we can't understand */ + fz_try(ctx) + { + cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultGray); + if (cs_obj) + { + fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); + fz_set_default_gray(ctx, default_cs, cs); + fz_drop_colorspace(ctx, cs); + } + } + fz_catch(ctx) + { + if (fz_caught(ctx) != FZ_ERROR_TRYLATER) + fz_warn(ctx, "Error while reading DefaultGray: %s", fz_caught_message(ctx)); + } + + fz_try(ctx) + { + cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultRGB); + if (cs_obj) + { + fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); + fz_set_default_rgb(ctx, default_cs, cs); + fz_drop_colorspace(ctx, cs); + } + } + fz_catch(ctx) + { + if (fz_caught(ctx) != FZ_ERROR_TRYLATER) + fz_warn(ctx, "Error while reading DefaultRGB: %s", fz_caught_message(ctx)); + } + + fz_try(ctx) + { + cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultCMYK); + if (cs_obj) + { + fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); + fz_set_default_cmyk(ctx, default_cs, cs); + fz_drop_colorspace(ctx, cs); + } + } + fz_catch(ctx) + { + if (fz_caught(ctx) != FZ_ERROR_TRYLATER) + fz_warn(ctx, "Error while reading DefaultCMYK: %s", fz_caught_message(ctx)); + } +} + fz_default_colorspaces * pdf_load_default_colorspaces(fz_context *ctx, pdf_document *doc, pdf_page *page) { pdf_obj *res; pdf_obj *obj; - pdf_obj *cs_obj; fz_default_colorspaces *default_cs; fz_colorspace *oi; @@ -885,47 +939,7 @@ pdf_load_default_colorspaces(fz_context *ctx, pdf_document *doc, pdf_page *page) res = pdf_page_resources(ctx, page); obj = pdf_dict_get(ctx, res, PDF_NAME_ColorSpace); if (obj) - { - /* The spec says to ignore any colors we can't understand */ - fz_try(ctx) - { - cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultGray); - if (cs_obj) - { - fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); - fz_set_default_gray(ctx, default_cs, cs); - fz_drop_colorspace(ctx, cs); - } - } - fz_catch(ctx) - {} - - fz_try(ctx) - { - cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultRGB); - if (cs_obj) - { - fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); - fz_set_default_rgb(ctx, default_cs, cs); - fz_drop_colorspace(ctx, cs); - } - } - fz_catch(ctx) - {} - - fz_try(ctx) - { - cs_obj = pdf_dict_get(ctx, obj, PDF_NAME_DefaultCMYK); - if (cs_obj) - { - fz_colorspace *cs = pdf_load_colorspace(ctx, cs_obj); - fz_set_default_cmyk(ctx, default_cs, cs); - fz_drop_colorspace(ctx, cs); - } - } - fz_catch(ctx) - {} - } + pdf_load_default_colorspaces_imp(ctx, default_cs, obj); oi = pdf_document_output_intent(ctx, doc); if (oi) @@ -934,6 +948,22 @@ pdf_load_default_colorspaces(fz_context *ctx, pdf_document *doc, pdf_page *page) return default_cs; } +fz_default_colorspaces * +pdf_update_default_colorspaces(fz_context *ctx, fz_default_colorspaces *old_cs, pdf_obj *res) +{ + pdf_obj *obj; + fz_default_colorspaces *new_cs; + + obj = pdf_dict_get(ctx, res, PDF_NAME_ColorSpace); + if (!obj) + return fz_keep_default_colorspaces(ctx, old_cs); + + new_cs = fz_clone_default_colorspaces(ctx, old_cs); + pdf_load_default_colorspaces_imp(ctx, new_cs, obj); + + return new_cs; +} + pdf_page * pdf_load_page(fz_context *ctx, pdf_document *doc, int number) { |