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