SharpMuPDF/mupdf/source/fitz/glyph-imp.h

// Copyright (C) 2004-2025 Artifex Software, Inc.
//
// This file is part of MuPDF.
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#ifndef FITZ_GLYPH_IMP_H
#define FITZ_GLYPH_IMP_H


/*
	Glyphs represent a run length encoded set of pixels for a 2
	dimensional region of a plane.

	x, y: The minimum x and y coord of the region in pixels.

	w, h: The width and height of the region in pixels.

	samples: The sample data. The sample data is in a compressed
	format designed to give reasonable compression, and to be fast
	to plot from.

	The first sizeof(int) * h bytes of the table, when interpreted
	as ints gives the offset within the data block of that lines
	data. An offset of 0 indicates that that line is completely
	blank.

	The data for individual lines is a sequence of bytes:
	 00000000 = end of lines data
	 LLLLLL00 = extend the length given in the next run by the 6 L
		bits given here.
	 LLLLLL01 = A run of length L+1 transparent pixels.
	 LLLLLE10 = A run of length L+1 solid pixels. If E then this is
		the last run on this line.
	 LLLLLE11 = A run of length L+1 intermediate pixels followed by
		L+1 bytes of literal pixel data. If E then this is the
		last run on this line.
*/
struct fz_glyph
{
	fz_storable storable;
	int x, y, w, h;
	fz_pixmap *pixmap;
	size_t size;
	unsigned char data[FZ_FLEXIBLE_ARRAY];
};

/*
	Create a new glyph from a pixmap

	Returns a pointer to the new glyph. Throws exception on failure
	to allocate.
*/
fz_glyph *fz_new_glyph_from_pixmap(fz_context *ctx, fz_pixmap *pix);

/*
	Create a new glyph from 8bpp data

	x, y: X and Y position for the glyph

	w, h: Width and Height for the glyph

	sp: Source Pointer to data

	span: Increment from line to line of data

	Returns a pointer to the new glyph. Throws exception on failure
	to allocate.
*/
fz_glyph *fz_new_glyph_from_8bpp_data(fz_context *ctx, int x, int y, int w, int h, unsigned char *sp, int span);

/*
	Create a new glyph from 1bpp data

	x, y: X and Y position for the glyph

	w, h: Width and Height for the glyph

	sp: Source Pointer to data

	span: Increment from line to line of data

	Returns a pointer to the new glyph. Throws exception on failure
	to allocate.
*/
fz_glyph *fz_new_glyph_from_1bpp_data(fz_context *ctx, int x, int y, int w, int h, unsigned char *sp, int span);

fz_path *fz_outline_ft_glyph(fz_context *ctx, fz_font *font, int gid, fz_matrix trm);
fz_glyph *fz_render_ft_glyph(fz_context *ctx, fz_font *font, int cid, fz_matrix trm, int aa);
fz_pixmap *fz_render_ft_glyph_pixmap(fz_context *ctx, fz_font *font, int cid, fz_matrix trm, int aa);
fz_glyph *fz_render_t3_glyph(fz_context *ctx, fz_font *font, int cid, fz_matrix trm, fz_colorspace *model, const fz_irect *scissor, int aa);
fz_pixmap *fz_render_t3_glyph_pixmap(fz_context *ctx, fz_font *font, int cid, fz_matrix trm, fz_colorspace *model, const fz_irect *scissor, int aa);
fz_glyph *fz_render_ft_stroked_glyph(fz_context *ctx, fz_font *font, int gid, fz_matrix trm, fz_matrix ctm, const fz_stroke_state *state, int aa);
fz_glyph *fz_render_glyph(fz_context *ctx, fz_font*, int gid, fz_matrix *, fz_colorspace *model, const fz_irect *scissor, int alpha, int aa);
fz_glyph *fz_render_stroked_glyph(fz_context *ctx, fz_font*, int, fz_matrix *, fz_matrix, fz_colorspace *model, const fz_stroke_state *stroke, const fz_irect *scissor, int aa);

#endif