diff options
| -rw-r--r-- | pdf/ghostpdf.c | 1 | ||||
| -rw-r--r-- | pdf/ghostpdf.h | 1 | ||||
| -rw-r--r-- | pdf/pdf_gstate.c | 20 |
3 files changed, 22 insertions, 0 deletions
diff --git a/pdf/ghostpdf.c b/pdf/ghostpdf.c index bef6f7c33..e71d39649 100644 --- a/pdf/ghostpdf.c +++ b/pdf/ghostpdf.c @@ -378,6 +378,7 @@ const char *pdf_warning_strings[] = { "failed to read a valid number, assuming 0", "A DeviceN space used the /All ink name.", "Couldn't retrieve MediaBox for page, using current media size", + "CA or ca value not in range 0.0 to 1.0, clamped to range.", "" /* Last warning shuld not be used */ }; diff --git a/pdf/ghostpdf.h b/pdf/ghostpdf.h index 11aa6ab60..833ebaf5d 100644 --- a/pdf/ghostpdf.h +++ b/pdf/ghostpdf.h @@ -128,6 +128,7 @@ typedef enum pdf_warning_e { W_PDF_INVALID_REAL, W_PDF_DEVICEN_USES_ALL, W_PDF_BAD_MEDIABOX, + W_PDF_CA_OUTOFRANGE, W_PDF_MAX_WARNING /* Must be last entry, add new warnings immediately before this and update pdf_warning_strings in ghostpdf.c */ } pdf_warning; diff --git a/pdf/pdf_gstate.c b/pdf/pdf_gstate.c index 7544aa484..1ea6abc11 100644 --- a/pdf/pdf_gstate.c +++ b/pdf/pdf_gstate.c @@ -2199,6 +2199,16 @@ static int GS_CA(pdf_context *ctx, pdf_dict *GS, pdf_dict *stream_dict, pdf_dict if (code < 0) return code; + if (d1 > 1.0) { + pdfi_set_warning(ctx, 0, NULL, W_PDF_CA_OUTOFRANGE, "GS_CA", NULL); + d1 = 1.0; + } + + if (d1 < 0.0) { + pdfi_set_warning(ctx, 0, NULL, W_PDF_CA_OUTOFRANGE, "GS_CA", NULL); + d1 = 0.0; + } + code = gs_setstrokeconstantalpha(ctx->pgs, d1); return code; } @@ -2212,6 +2222,16 @@ static int GS_ca(pdf_context *ctx, pdf_dict *GS, pdf_dict *stream_dict, pdf_dict if (code < 0) return code; + if (d1 > 1.0) { + pdfi_set_warning(ctx, 0, NULL, W_PDF_CA_OUTOFRANGE, "GS_ca", NULL); + d1 = 1.0; + } + + if (d1 < 0.0) { + pdfi_set_warning(ctx, 0, NULL, W_PDF_CA_OUTOFRANGE, "GS_ca", NULL); + d1 = 0.0; + } + code = gs_setfillconstantalpha(ctx->pgs, d1); return code; } |