source: mainline/uspace/lib/gfxfont/private/tpf_file.h

/*
 * Copyright (c) 2022 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup libgfxfont
 * @{
 */
/**
 * @file TPF file definitions
 *
 */

#ifndef _GFX_PRIVATE_TPF_FILE_H
#define _GFX_PRIVATE_TPF_FILE_H

#include <stdint.h>

enum {
        /** Typeface RIFF format ID */
        FORM_TPFC = 0x43465054,

        /** Font list type */
        LTYPE_font = 0x746e6f66,

        /** Font properties chunk ID */
        CKID_fprp = 0x70727066,
        /** Font metrics chunk ID */
        CKID_fmtr = 0x72746d66,
        /** Font bitmap chunk ID */
        CKID_fbmp = 0x706d6266,

        /** Glyph list type */
        LTYPE_glph = 0x68706c67,

        /** Glyph metrics chunk ID */
        CKID_gmtr = 0x72746d67,
        /** Glyph patterns chunk ID */
        CKID_gpat = 0x74617067,
        /** Glyph rectangle/origin chunk ID */
        CKID_gror = 0x726f7267
};

/** TPF font properties */
typedef struct {
        uint16_t size;
        uint16_t flags;
} tpf_font_props_t;

/** TPF font metrics */
typedef struct {
        uint16_t ascent;
        uint16_t descent;
        uint16_t leading;
        int16_t underline_y0;
        int16_t underline_y1;
} tpf_font_metrics_t;

/** TPF glyph metrics */
typedef struct {
        uint16_t advance;
} tpf_glyph_metrics_t;

/** TPF glyph rectangle/origin */
typedef struct {
        /** Rectangle p0.x */
        uint32_t p0x;
        /** Rectangle p0.y */
        uint32_t p0y;
        /** Rectangle p1.x */
        uint32_t p1x;
        /** Rectangle p1.y */
        uint32_t p1y;
        /** Origin X */
        uint32_t orig_x;
        /** Origin Y */
        uint32_t orig_y;
} tpf_glyph_ror_t;

/** TPF font bitmap header */
typedef struct {
        /** Width in pixels */
        uint32_t width;
        /** Height in pixels */
        uint32_t height;
        /** Format (0) */
        uint16_t fmt;
        /** Depth (bits/pixel) */
        uint16_t depth;
} tpf_font_bmp_hdr_t;

#endif

/** @}
 */