--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libmlk-core/mlk/core/font.c	Sat Oct 15 20:23:14 2022 +0200
@@ -0,0 +1,128 @@
+/*
+ * font.c -- basic font management
+ *
+ * Copyright (c) 2020-2022 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 <string.h>
+
+#include <SDL_ttf.h>
+
+#include "color.h"
+#include "err.h"
+#include "error.h"
+#include "font.h"
+#include "texture_p.h"
+#include "util.h"
+
+int
+font_open(struct font *font, const char *path, unsigned int size)
+{
+	assert(font);
+	assert(path);
+
+	if (!(font->handle = TTF_OpenFont(path, size)))
+		return ERR_SDL;
+
+	return 0;
+}
+
+int
+font_openmem(struct font *font, const void *buffer, size_t buflen, unsigned int size)
+{
+	assert(font);
+	assert(buffer);
+
+	SDL_RWops *ops;
+
+	if (!(ops = SDL_RWFromConstMem(buffer, buflen)) ||
+	   (!(font->handle = TTF_OpenFontRW(ops, 1, size))))
+		return ERR_SDL;
+
+	return 0;
+}
+
+int
+font_ok(const struct font *font)
+{
+	return font && font->handle;
+}
+
+int
+font_render(struct font *font, struct texture *tex, const char *text, unsigned long color)
+{
+	assert(font_ok(font));
+	assert(text);
+
+	SDL_Color fg = {
+		.r = COLOR_R(color),
+		.g = COLOR_G(color),
+		.b = COLOR_B(color),
+		.a = COLOR_A(color)
+	};
+	SDL_Surface *surface;
+	SDL_Surface *(*func)(TTF_Font *, const char *, SDL_Color);
+
+	switch (font->style) {
+	case FONT_STYLE_ANTIALIASED:
+		func = TTF_RenderUTF8_Blended;
+		break;
+	default:
+		func = TTF_RenderUTF8_Solid;
+		break;
+	}
+
+	if (!(surface = func(font->handle, text, fg)))
+		return ERR_SDL;
+
+	return texture_from_surface(tex, surface);
+}
+
+unsigned int
+font_height(const struct font *font)
+{
+	assert(font_ok(font));
+
+	return TTF_FontHeight(font->handle);
+}
+
+int
+font_query(const struct font *font, const char *text, unsigned int *w, unsigned int *h)
+{
+	assert(font_ok(font));
+	assert(text);
+
+	if (w)
+		*w = 0;
+	if (h)
+		*h = 0;
+
+	if (TTF_SizeUTF8(font->handle, text, (int *)w, (int *)h) != 0)
+		return ERR_SDL;
+
+	return 0;
+}
+
+void
+font_finish(struct font *font)
+{
+	assert(font);
+
+	if (font->handle)
+		TTF_CloseFont(font->handle);
+
+	memset(font, 0, sizeof (*font));
+}