75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
|
#include "mupdf/fitz.h"
|
||
|
|
#include "mupdf/pdf.h"
|
||
|
|
|
||
|
|
pdf_pattern *
|
||
|
|
pdf_keep_pattern(fz_context *ctx, pdf_pattern *pat)
|
||
|
|
{
|
||
|
|
return fz_keep_storable(ctx, &pat->storable);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pdf_drop_pattern(fz_context *ctx, pdf_pattern *pat)
|
||
|
|
{
|
||
|
|
fz_drop_storable(ctx, &pat->storable);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pdf_drop_pattern_imp(fz_context *ctx, fz_storable *pat_)
|
||
|
|
{
|
||
|
|
pdf_pattern *pat = (pdf_pattern *)pat_;
|
||
|
|
pdf_drop_obj(ctx, pat->resources);
|
||
|
|
pdf_drop_obj(ctx, pat->contents);
|
||
|
|
fz_free(ctx, pat);
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned int
|
||
|
|
pdf_pattern_size(pdf_pattern *pat)
|
||
|
|
{
|
||
|
|
if (pat == NULL)
|
||
|
|
return 0;
|
||
|
|
return sizeof(*pat);
|
||
|
|
}
|
||
|
|
|
||
|
|
pdf_pattern *
|
||
|
|
pdf_load_pattern(fz_context *ctx, pdf_document *doc, pdf_obj *dict)
|
||
|
|
{
|
||
|
|
pdf_pattern *pat;
|
||
|
|
|
||
|
|
if ((pat = pdf_find_item(ctx, pdf_drop_pattern_imp, dict)) != NULL)
|
||
|
|
{
|
||
|
|
return pat;
|
||
|
|
}
|
||
|
|
|
||
|
|
pat = fz_malloc_struct(ctx, pdf_pattern);
|
||
|
|
FZ_INIT_STORABLE(pat, 1, pdf_drop_pattern_imp);
|
||
|
|
pat->document = doc;
|
||
|
|
pat->resources = NULL;
|
||
|
|
pat->contents = NULL;
|
||
|
|
pat->id = pdf_to_num(ctx, dict);
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
/* Store pattern now, to avoid possible recursion if objects refer back to this one */
|
||
|
|
pdf_store_item(ctx, dict, pat, pdf_pattern_size(pat));
|
||
|
|
|
||
|
|
pat->ismask = pdf_dict_get_int(ctx, dict, PDF_NAME(PaintType)) == 2;
|
||
|
|
pat->xstep = pdf_dict_get_real(ctx, dict, PDF_NAME(XStep));
|
||
|
|
pat->ystep = pdf_dict_get_real(ctx, dict, PDF_NAME(YStep));
|
||
|
|
pat->bbox = pdf_dict_get_rect(ctx, dict, PDF_NAME(BBox));
|
||
|
|
pat->matrix = pdf_dict_get_matrix(ctx, dict, PDF_NAME(Matrix));
|
||
|
|
|
||
|
|
pat->resources = pdf_dict_get(ctx, dict, PDF_NAME(Resources));
|
||
|
|
if (pat->resources)
|
||
|
|
pdf_keep_obj(ctx, pat->resources);
|
||
|
|
|
||
|
|
pat->contents = pdf_keep_obj(ctx, dict);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
pdf_remove_item(ctx, pdf_drop_pattern_imp, dict);
|
||
|
|
pdf_drop_pattern(ctx, pat);
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
return pat;
|
||
|
|
}
|