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#ifndef MUPDF_PDF_RESOURCE_H
#define MUPDF_PDF_RESOURCE_H
/*
* PDF interface to store
*/
void pdf_store_item(fz_context *ctx, pdf_obj *key, void *val, size_t itemsize);
void *pdf_find_item(fz_context *ctx, fz_store_drop_fn *drop, pdf_obj *key);
void pdf_remove_item(fz_context *ctx, fz_store_drop_fn *drop, pdf_obj *key);
void pdf_empty_store(fz_context *ctx, pdf_document *doc);
/*
* Structures used for managing resource locations and avoiding multiple
* occurrences when resources are added to the document. The search for existing
* resources will be performed when we are first trying to add an item. Object
* refs are stored in a fz_hash_table structure using a hash of the md5 sum of
* the data, enabling rapid lookup.
*/
enum { PDF_SIMPLE_FONT_RESOURCE=1, PDF_CID_FONT_RESOURCE=2, PDF_CJK_FONT_RESOURCE=3 };
enum { PDF_SIMPLE_ENCODING_LATIN, PDF_SIMPLE_ENCODING_GREEK, PDF_SIMPLE_ENCODING_CYRILLIC };
pdf_obj *pdf_find_font_resource(fz_context *ctx, pdf_document *doc, int type, int encoding, fz_font *item, unsigned char md5[16]);
pdf_obj *pdf_insert_font_resource(fz_context *ctx, pdf_document *doc, unsigned char md5[16], pdf_obj *obj);
pdf_obj *pdf_find_image_resource(fz_context *ctx, pdf_document *doc, fz_image *item, unsigned char md5[16]);
pdf_obj *pdf_insert_image_resource(fz_context *ctx, pdf_document *doc, unsigned char md5[16], pdf_obj *obj);
void pdf_drop_resource_tables(fz_context *ctx, pdf_document *doc);
/*
* Functions, Colorspaces, Shadings and Images
*/
typedef struct pdf_function_s pdf_function;
void pdf_eval_function(fz_context *ctx, pdf_function *func, const float *in, int inlen, float *out, int outlen);
pdf_function *pdf_keep_function(fz_context *ctx, pdf_function *func);
void pdf_drop_function(fz_context *ctx, pdf_function *func);
size_t pdf_function_size(fz_context *ctx, pdf_function *func);
pdf_function *pdf_load_function(fz_context *ctx, pdf_obj *ref, int in, int out);
fz_colorspace *pdf_document_output_intent(fz_context *ctx, pdf_document *doc);
fz_colorspace *pdf_load_colorspace(fz_context *ctx, pdf_obj *obj);
int pdf_is_tint_colorspace(fz_context *ctx, fz_colorspace *cs);
fz_shade *pdf_load_shading(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
fz_image *pdf_load_inline_image(fz_context *ctx, pdf_document *doc, pdf_obj *rdb, pdf_obj *dict, fz_stream *file);
int pdf_is_jpx_image(fz_context *ctx, pdf_obj *dict);
fz_image *pdf_load_image(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
pdf_obj *pdf_add_image(fz_context *ctx, pdf_document *doc, fz_image *image, int mask);
/*
* Pattern
*/
typedef struct pdf_pattern_s pdf_pattern;
struct pdf_pattern_s
{
fz_storable storable;
int ismask;
float xstep;
float ystep;
fz_matrix matrix;
fz_rect bbox;
pdf_document *document;
pdf_obj *resources;
pdf_obj *contents;
int id; /* unique ID for caching rendered tiles */
};
pdf_pattern *pdf_load_pattern(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
pdf_pattern *pdf_keep_pattern(fz_context *ctx, pdf_pattern *pat);
void pdf_drop_pattern(fz_context *ctx, pdf_pattern *pat);
/*
* XObject
*/
pdf_obj *pdf_new_xobject(fz_context *ctx, pdf_document *doc, fz_rect bbox, fz_matrix matrix, pdf_obj *res, fz_buffer *buffer);
void pdf_update_xobject(fz_context *ctx, pdf_document *doc, pdf_obj *xobj, fz_rect bbox, fz_matrix mat, pdf_obj *res, fz_buffer *buffer);
pdf_obj *pdf_xobject_resources(fz_context *ctx, pdf_obj *xobj);
fz_rect pdf_xobject_bbox(fz_context *ctx, pdf_obj *xobj);
fz_matrix pdf_xobject_matrix(fz_context *ctx, pdf_obj *xobj);
int pdf_xobject_isolated(fz_context *ctx, pdf_obj *xobj);
int pdf_xobject_knockout(fz_context *ctx, pdf_obj *xobj);
int pdf_xobject_transparency(fz_context *ctx, pdf_obj *xobj);
fz_colorspace *pdf_xobject_colorspace(fz_context *ctx, pdf_obj *xobj);
#endif
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