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cc65/asminc/tgi-vectorfont.inc
2022-04-17 16:04:58 +02:00

71 lines
3.8 KiB
PHP

;*****************************************************************************/
;* */
;* tgi-vectorfont.inc */
;* */
;* TGI vector font definitions */
;* */
;* */
;* */
;* (C) 2009, Ullrich von Bassewitz */
;* Roemerstrasse 52 */
;* D-70794 Filderstadt */
;* EMail: uz@cc65.org */
;* */
;* */
;* This software is provided 'as-is', without any expressed or implied */
;* warranty. In no event will the authors be held liable for any damages */
;* arising from the use of this software. */
;* */
;* Permission is granted to anyone to use this software for any purpose, */
;* including commercial applications, and to alter it and redistribute it */
;* freely, subject to the following restrictions: */
;* */
;* 1. The origin of this software must not be misrepresented; you must not */
;* claim that you wrote the original software. If you use this software */
;* in a product, an acknowledgment in the product documentation would be */
;* appreciated but is not required. */
;* 2. Altered source versions must be plainly marked as such, and must not */
;* be misrepresented as being the original software. */
;* 3. This notice may not be removed or altered from any source */
;* distribution. */
;* */
;*****************************************************************************/
;------------------------------------------------------------------------------
; Vectorfont constants
TGI_VF_VERSION = $00 ; File version number
TGI_VF_FIRSTCHAR = $20 ; First char in file
TGI_VF_LASTCHAR = $7E ; Last char in file
TGI_VF_CCOUNT = (TGI_VF_LASTCHAR - TGI_VF_FIRSTCHAR + 1)
;------------------------------------------------------------------------------
; TCH file header and font data structures
; TCH file header
.struct TGI_VF_HDR
MAGIC .byte 3 ; "TCH"
VERSION .byte 1 ; Version number
SIZE .word 1 ; Font data size
.endstruct
; Font data loaded directly from file
.struct TGI_VECTORFONT
TOP .byte ; Height of char
BOTTOM .byte ; Descender
HEIGHT .byte ; Maximum char height
WIDTHS .byte ::TGI_VF_CCOUNT ; Char widths
CHARS .word ::TGI_VF_CCOUNT ; Pointer to character defs
OPS .byte ; Actually dynamic
.endstruct
;------------------------------------------------------------------------------
; C callable functions
.global _tgi_vectorchar