diff options
Diffstat (limited to 'pdf/pdf_image.c')
| -rw-r--r-- | pdf/pdf_image.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/pdf/pdf_image.c b/pdf/pdf_image.c index b62e8d703..9c56e4bdd 100644 --- a/pdf/pdf_image.c +++ b/pdf/pdf_image.c @@ -1039,19 +1039,36 @@ static int pdfi_image_setup_trans(pdf_context *ctx, pdfi_trans_state_t *state) { int code; + gs_rect bbox; + /* We need to create a bbox in order to pass it to the transparency setup, + * which (potentially, at least, uses it to set up a transparency group. + * Setting up a 1x1 path, and establishing it's BBox will work, because + * the image scaling is already in place. We don't want to disturb the + * graphics state, so do this inside a gsave/grestore pair. + */ code = pdfi_gsave(ctx); if (code < 0) return code; + + code = gs_newpath(ctx->pgs); + if (code < 0) + goto exit; code = gs_moveto(ctx->pgs, 1.0, 1.0); if (code < 0) goto exit; code = gs_lineto(ctx->pgs, 0., 0.); if (code < 0) goto exit; - code = pdfi_trans_setup(ctx, state, TRANSPARENCY_Caller_Image); - exit: + + code = pdfi_get_current_bbox(ctx, &bbox, false); + if (code < 0) + goto exit; + pdfi_grestore(ctx); + + code = pdfi_trans_setup(ctx, state, &bbox, TRANSPARENCY_Caller_Image); + exit: return code; } |