diff options
| author | Sebastian Rasmussen <sebras@gmail.com> | 2016-09-05 09:59:19 +0800 |
|---|---|---|
| committer | Sebastian Rasmussen <sebras@gmail.com> | 2016-09-06 21:52:16 +0800 |
| commit | 2d3eca6dec6b8fc7a169b3fc357904069df6b6c4 (patch) | |
| tree | d89569e37bcb58cc4138678775a736592a6734df /source/pdf | |
| parent | c648955c79231d750dc43a0514f3612b41e35294 (diff) | |
| download | mupdf-2d3eca6dec6b8fc7a169b3fc357904069df6b6c4.tar.xz | |
Luminosity transparency group must have colorspace when used as softmask.
Previously no fallbacks happened if the colorspace was not set, now gray
is assumed. The reason this is safe is that the softmasks backdrop color
entry is always filled with one component value (possibly being 0) matching
the gray component of the colorspace.
Diffstat (limited to 'source/pdf')
| -rw-r--r-- | source/pdf/pdf-op-run.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/source/pdf/pdf-op-run.c b/source/pdf/pdf-op-run.c index aad0aebf..a3dca30c 100644 --- a/source/pdf/pdf-op-run.c +++ b/source/pdf/pdf-op-run.c @@ -138,6 +138,10 @@ begin_softmask(fz_context *ctx, pdf_run_processor *pr, softmask_save *save) gstate->ctm = gstate->softmask_ctm; mask_colorspace = pdf_xobject_colorspace(ctx, softmask); + + if (gstate->luminosity && !mask_colorspace) + mask_colorspace = fz_device_gray(ctx); + fz_try(ctx) { fz_begin_mask(ctx, pr->dev, &mask_bbox, gstate->luminosity, mask_colorspace, gstate->softmask_bc); |