Mercurial > molko
diff src/core/debug.c @ 79:8f95462ac5f8
core: create a debugging API, closes #2469 @2h
author | David Demelier <markand@malikania.fr> |
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date | Sun, 02 Feb 2020 15:48:36 +0100 |
parents | |
children | ed72843a7194 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/core/debug.c Sun Feb 02 15:48:36 2020 +0100 @@ -0,0 +1,71 @@ +/* + * debug.c -- debugging interfaces + * + * Copyright (c) 2020 David Demelier <markand@malikania.fr> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <assert.h> +#include <stdio.h> + +#include "debug.h" +#include "font.h" +#include "texture.h" + +#define PADDING_X 5 +#define PADDING_Y 5 + +struct debug_options debug_options = { + .default_color = 0x0000ffff, + .default_style = FONT_STYLE_ANTIALIASED +}; + +void +debug_printf(struct debug_report *report, const char *fmt, ...) +{ + assert(report); + assert(fmt); + + va_list ap; + + va_start(ap, fmt); + debug_vprintf(report, fmt, ap); + va_end(ap); +} + +void +debug_vprintf(struct debug_report *report, const char *fmt, va_list ap) +{ + assert(report); + assert(fmt); + + char line[DEBUG_LINE_MAX]; + struct texture *tex; + struct font *font; + unsigned int gapy; + + vsnprintf(line, sizeof (line), fmt, ap); + font = report->font ? report->font : debug_options.default_font; + tex = font_render_ex(font, line, report->color, report->style); + + if (!tex) + return; + + gapy = (PADDING_Y * (report->count)) + + (font_height(font) * (report->count)); + report->count++; + + texture_draw(tex, PADDING_X, gapy); + texture_close(tex); +}