gvusershape.c File Reference

#include "config.h"
#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <util/gv_fopen.h>
#include <common/types.h>
#include <common/usershape.h>
#include <common/utils.h>
#include <gvc/gvplugin_loadimage.h>
#include <gvc/gvplugin.h>
#include <gvc/gvcint.h>
#include <gvc/gvcproc.h>
#include <util/agxbuf.h>
#include <util/alloc.h>
#include <util/gv_ctype.h>
#include <util/strview.h>

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Data Structures
struct	knowntype_t
struct	match_t
struct	stream_t

Macros
#define	HDRLEN   20
#define	PNG_MAGIC   "\x89PNG\x0D\x0A\x1A\x0A"
#define	PS_MAGIC   "%!PS-Adobe-"
#define	BMP_MAGIC   "BM"
#define	GIF_MAGIC   "GIF8"
#define	JPEG_MAGIC   "\xFF\xD8\xFF"
#define	PDF_MAGIC   "%PDF-"
#define	EPS_MAGIC   "\xC5\xD0\xD3\xC6"
#define	XML_MAGIC   "<?xml"
#define	SVG_MAGIC   "<svg"
#define	RIFF_MAGIC   "RIFF"
#define	WEBP_MAGIC   "WEBP"
#define	ICO_MAGIC   "\x00\x00\x01\x00"
#define	KEY   "/MediaBox"
#define	strc(x)   (*(x->s)?*(x->s):nxtc(x))
#define	stradv(x)   (x->s++)
#define	MAX_USERSHAPE_FILES_OPEN   50

Functions
shape_desc *	find_user_shape (const char *)
static imagetype_t	imagetype (usershape_t *us)
static bool	get_int_lsb_first (FILE *f, size_t sz, int *val)
static bool	get_int_msb_first (FILE *f, size_t sz, int *val)
static double	svg_units_convert (double n, char *u)
static int	find_attribute (const char *s, match_t *result)
static void	svg_size (usershape_t *us)
static void	png_size (usershape_t *us)
static void	ico_size (usershape_t *us)
static void	webp_size (usershape_t *us)
static void	gif_size (usershape_t *us)
static void	bmp_size (usershape_t *us)
static void	jpeg_size (usershape_t *us)
static void	ps_size (usershape_t *us)
static char	nxtc (stream_t *str)
static void	skipWS (stream_t *str)
static int	scanNum (char *tok, double *dp)
static void	getNum (stream_t *str, char *buf)
static int	boxof (stream_t *str, boxf *bp)
static int	bboxPDF (FILE *fp, boxf *bp)
static void	pdf_size (usershape_t *us)
static void	usershape_close (void *p)
usershape_t *	gvusershape_find (const char *name)
bool	gvusershape_file_access (usershape_t *us)
void	gvusershape_file_release (usershape_t *us)
static void	freeUsershape (usershape_t *us)
static usershape_t *	gvusershape_open (const char *name)
point	gvusershape_size_dpi (usershape_t *us, pointf dpi)
point	gvusershape_size (graph_t *g, char *name)

Variables
char *	Gvimagepath
char *	HTTPServerEnVar
static Dict_t *	ImageDict
static knowntype_t	knowntypes []
static Dtdisc_t	ImageDictDisc

Macro Definition Documentation

BMP_MAGIC

#define BMP_MAGIC   "BM"

Definition at line 59 of file gvusershape.c.

EPS_MAGIC

#define EPS_MAGIC   "\xC5\xD0\xD3\xC6"

Definition at line 63 of file gvusershape.c.

GIF_MAGIC

#define GIF_MAGIC   "GIF8"

Definition at line 60 of file gvusershape.c.

HDRLEN

#define HDRLEN   20

Definition at line 55 of file gvusershape.c.

ICO_MAGIC

#define ICO_MAGIC   "\x00\x00\x01\x00"

Definition at line 68 of file gvusershape.c.

JPEG_MAGIC

#define JPEG_MAGIC   "\xFF\xD8\xFF"

Definition at line 61 of file gvusershape.c.

KEY

#define KEY   "/MediaBox"

Definition at line 486 of file gvusershape.c.

MAX_USERSHAPE_FILES_OPEN

#define MAX_USERSHAPE_FILES_OPEN   50

Definition at line 623 of file gvusershape.c.

PDF_MAGIC

#define PDF_MAGIC   "%PDF-"

Definition at line 62 of file gvusershape.c.

PNG_MAGIC

#define PNG_MAGIC   "\x89PNG\x0D\x0A\x1A\x0A"

Definition at line 57 of file gvusershape.c.

PS_MAGIC

#define PS_MAGIC   "%!PS-Adobe-"

Definition at line 58 of file gvusershape.c.

RIFF_MAGIC

#define RIFF_MAGIC   "RIFF"

Definition at line 66 of file gvusershape.c.

stradv

#define stradv

(

x

)

(x->s++)

Definition at line 504 of file gvusershape.c.

strc

#define strc

(

x

)

(*(x->s)?*(x->s):nxtc(x))

Definition at line 503 of file gvusershape.c.

SVG_MAGIC

#define SVG_MAGIC   "<svg"

Definition at line 65 of file gvusershape.c.

WEBP_MAGIC

#define WEBP_MAGIC   "WEBP"

Definition at line 67 of file gvusershape.c.

XML_MAGIC

#define XML_MAGIC   "<?xml"

Definition at line 64 of file gvusershape.c.

Function Documentation

bboxPDF()

static int bboxPDF ( FILE *  fp, boxf *  bp  )

static

Definition at line 563 of file gvusershape.c.

References boxof(), KEY, and str.

Referenced by pdf_size().

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bmp_size()

static void bmp_size ( usershape_t *  us )

static

Definition at line 365 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_lsb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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boxof()

static int boxof ( stream_t *  str, boxf *  bp  )

static

Definition at line 544 of file gvusershape.c.

References getNum(), boxf::LL, scanNum(), skipWS(), str, stradv, strc, tok(), boxf::UR, pointf_s::x, and pointf_s::y.

Referenced by bboxPDF().

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find_attribute()

static int find_attribute ( const char *  s, match_t *  result  )

static

Definition at line 195 of file gvusershape.c.

References strview_t::data, match_t::key, strview_t::size, and match_t::value.

Referenced by svg_size().

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find_user_shape()

shape_desc * find_user_shape ( const char *  name )

extern

Definition at line 3962 of file shapes.c.

Referenced by gvusershape_open(), and user_shape().

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freeUsershape()

static void freeUsershape ( usershape_t *  us )

static

Definition at line 664 of file gvusershape.c.

References agstrfree(), free(), and usershape_s::name.

Referenced by gvusershape_open().

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get_int_lsb_first()

static bool get_int_lsb_first ( FILE *  f, size_t  sz, int *  val  )

static

Definition at line 139 of file gvusershape.c.

Referenced by bmp_size(), gif_size(), and webp_size().

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get_int_msb_first()

static bool get_int_msb_first ( FILE *  f, size_t  sz, int *  val  )

static

Definition at line 156 of file gvusershape.c.

Referenced by ico_size(), jpeg_size(), and png_size().

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getNum()

static void getNum ( stream_t *  str, char *  buf  )

static

Definition at line 528 of file gvusershape.c.

References gv_isdigit(), len(), skipWS(), str, stradv, and strc.

Referenced by boxof().

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gif_size()

static void gif_size ( usershape_t *  us )

static

Definition at line 353 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_lsb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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gvusershape_file_release()

void gvusershape_file_release

(

usershape_t *

us

)

Definition at line 654 of file gvusershape.c.

References usershape_s::f, usershape_s::nocache, and NULL.

Referenced by cairo_loadimage(), core_loadimage_ps(), gd_loadimage(), gdiplus_loadimage(), gvloadimage_rsvg_load(), gvusershape_open(), lasi_loadimage_ps(), and quartz_loadimage().

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gvusershape_find()

usershape_t * gvusershape_find

(

const char *

name

)

Definition at line 609 of file gvusershape.c.

References dtmatch, ImageDict, and NULL.

Referenced by gvrender_usershape(), and gvusershape_open().

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gvusershape_open()

static usershape_t * gvusershape_open ( const char *  name )

static

Definition at line 670 of file gvusershape.c.

References agstrdup(), agwarningf(), bmp_size(), usershape_s::data, dtinsert, dtopen(), Dttree, usershape_s::f, find_user_shape(), freeUsershape(), FT_BMP, FT_EPS, FT_GIF, FT_ICO, FT_JPEG, FT_NULL, FT_PDF, FT_PNG, FT_PS, FT_SVG, FT_WEBP, gif_size(), gv_alloc(), gvusershape_file_access(), gvusershape_file_release(), gvusershape_find(), ico_size(), ImageDict, ImageDictDisc, imagetype(), jpeg_size(), usershape_s::name, NULL, pdf_size(), png_size(), ps_size(), svg_size(), and webp_size().

Referenced by gvusershape_size().

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gvusershape_size()

point gvusershape_size	(	graph_t *	g,
		char *	name
	)

Definition at line 762 of file gvusershape.c.

References dtclose(), GD_drawing, Gvimagepath, gvusershape_open(), gvusershape_size_dpi(), HTTPServerEnVar, ImageDict, NULL, point::x, pointf_s::x, point::y, and pointf_s::y.

Referenced by poly_init(), and size_html_img().

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gvusershape_size_dpi()

point gvusershape_size_dpi	(	usershape_t *	us,
		pointf	dpi
	)

Definition at line 741 of file gvusershape.c.

References usershape_s::dpi, usershape_s::h, POINTS_PER_INCH, usershape_s::w, point::x, pointf_s::x, point::y, and pointf_s::y.

Referenced by gvrender_usershape(), and gvusershape_size().

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ico_size()

static void ico_size ( usershape_t *  us )

static

Definition at line 319 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_msb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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imagetype()

static imagetype_t imagetype ( usershape_t *  us )

static

Definition at line 83 of file gvusershape.c.

References usershape_s::f, FT_NULL, FT_RIFF, FT_SVG, FT_WEBP, FT_XML, HDRLEN, knowntypes, NULL, usershape_s::stringtype, knowntype_t::stringtype, SVG_MAGIC, usershape_s::type, knowntype_t::type, and WEBP_MAGIC.

Referenced by gvusershape_open().

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jpeg_size()

static void jpeg_size ( usershape_t *  us )

static

Definition at line 379 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_msb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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nxtc()

static char nxtc ( stream_t *  str )

static

Definition at line 494 of file gvusershape.c.

References stream_t::s, and str.

pdf_size()

static void pdf_size ( usershape_t *  us )

static

Definition at line 579 of file gvusershape.c.

References bboxPDF(), usershape_s::dpi, usershape_s::f, usershape_s::h, boxf::LL, boxf::UR, usershape_s::w, pointf_s::x, usershape_s::x, pointf_s::y, and usershape_s::y.

Referenced by gvusershape_open().

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png_size()

static void png_size ( usershape_t *  us )

static

Definition at line 307 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_msb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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ps_size()

static void ps_size ( usershape_t *  us )

static

Definition at line 453 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, usershape_s::h, usershape_s::w, usershape_s::x, and usershape_s::y.

Referenced by gvusershape_open().

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scanNum()

static int scanNum ( char *  tok, double *  dp  )

static

Definition at line 517 of file gvusershape.c.

References tok().

Referenced by boxof().

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skipWS()

static void skipWS ( stream_t *  str )

static

Definition at line 507 of file gvusershape.c.

References gv_isspace(), str, stradv, and strc.

Referenced by boxof(), and getNum().

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svg_size()

static void svg_size ( usershape_t *  us )

static

Definition at line 229 of file gvusershape.c.

References agxbfree(), agxbputc(), agxbuse(), strview_t::data, usershape_s::dpi, usershape_s::f, find_attribute(), free(), usershape_s::h, match(), strview_str(), strview_str_eq(), svg_units_convert(), match_t::value, and usershape_s::w.

Referenced by gvusershape_open().

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svg_units_convert()

static double svg_units_convert ( double  n, char *  u  )

static

Definition at line 174 of file gvusershape.c.

References POINTS_PER_CM, POINTS_PER_INCH, and POINTS_PER_MM.

Referenced by svg_size().

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usershape_close()

static void usershape_close ( void *  p )

static

Definition at line 593 of file gvusershape.c.

References usershape_s::data, usershape_s::datafree, usershape_s::f, and free().

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webp_size()

static void webp_size ( usershape_t *  us )

static

Definition at line 331 of file gvusershape.c.

References usershape_s::dpi, usershape_s::f, get_int_lsb_first(), usershape_s::h, and usershape_s::w.

Referenced by gvusershape_open().

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Variable Documentation

Gvimagepath

char* Gvimagepath

extern

Definition at line 48 of file globals.h.

Referenced by graph_init(), gvusershape_size(), and safefile().

HTTPServerEnVar

char* HTTPServerEnVar

extern

Definition at line 52 of file globals.h.

Referenced by dotneato_args_initialize(), graph_init(), gvusershape_size(), and safefile().

ImageDict

Dict_t* ImageDict

static

Definition at line 46 of file gvusershape.c.

Referenced by gvusershape_find(), gvusershape_open(), and gvusershape_size().

ImageDictDisc

Dtdisc_t ImageDictDisc

static

Initial value:

= {
    .key = offsetof(usershape_t, name),
    .size = -1,
    .freef = usershape_close,
}

Definition at line 603 of file gvusershape.c.

Referenced by gvusershape_open().

knowntypes

knowntype_t knowntypes[]

static

Initial value:

= {
    { PNG_MAGIC,  sizeof(PNG_MAGIC)-1,   FT_PNG,  "png",  },
    { PS_MAGIC,   sizeof(PS_MAGIC)-1,    FT_PS,   "ps",   },
    { BMP_MAGIC,  sizeof(BMP_MAGIC)-1,   FT_BMP,  "bmp",  },
    { GIF_MAGIC,  sizeof(GIF_MAGIC)-1,   FT_GIF,  "gif",  },
    { JPEG_MAGIC, sizeof(JPEG_MAGIC)-1,  FT_JPEG, "jpeg", },
    { PDF_MAGIC,  sizeof(PDF_MAGIC)-1,   FT_PDF,  "pdf",  },
    { EPS_MAGIC,  sizeof(EPS_MAGIC)-1,   FT_EPS,  "eps",  },
    { XML_MAGIC,  sizeof(XML_MAGIC)-1,   FT_XML,  "xml",  },
    { RIFF_MAGIC, sizeof(RIFF_MAGIC)-1,  FT_RIFF, "riff", },
    { ICO_MAGIC,  sizeof(ICO_MAGIC)-1,   FT_ICO,  "ico",  },
}

Definition at line 70 of file gvusershape.c.

Referenced by imagetype().