X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=libs%2Fdrawtext%2Fdrawtext_impl.h;fp=libs%2Fdrawtext%2Fdrawtext_impl.h;h=a10787358736d19ddeecf11beb91cb0e83c0dc9a;hb=d5f45e3128c537f272615cf76242e1dfebccdee7;hp=0000000000000000000000000000000000000000;hpb=dd7ce87b0ad2b8a1b4758bcc9354e993b71c8599;p=raydungeon

diff --git a/libs/drawtext/drawtext_impl.h b/libs/drawtext/drawtext_impl.h
new file mode 100644
index 0000000..a107873
--- /dev/null
+++ b/libs/drawtext/drawtext_impl.h
@@ -0,0 +1,92 @@
+/*
+libdrawtext - a simple library for fast text rendering in OpenGL
+Copyright (C) 2011-2016  John Tsiombikas <nuclear@member.fsf.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef DRAWTEXT_IMPL_H_
+#define DRAWTEXT_IMPL_H_
+
+#include "drawtext.h"
+
+struct glyph {
+	int code;
+	float x, y, width, height;
+	/* normalized coords [0, 1] */
+	float nx, ny, nwidth, nheight;
+	float orig_x, orig_y;
+	float advance;
+	struct glyph *next;
+};
+
+struct dtx_glyphmap {
+	int ptsize;
+
+	int xsz, ysz;
+	unsigned int xsz_shift;
+	unsigned char *pixels;
+	unsigned int tex;
+	int tex_valid;
+	void *udata;
+
+	int cstart, cend;	/* character range */
+	int crange;
+
+	float line_advance;
+	float baseline;
+
+	struct glyph *glyphs;
+	struct dtx_glyphmap *next;
+};
+
+struct dtx_font {
+	/* freetype FT_Face */
+	void *face;
+
+	/* list of glyphmaps */
+	struct dtx_glyphmap *gmaps;
+
+	/* last returned glyphmap (cache) */
+	struct dtx_glyphmap *last_gmap;
+};
+
+#ifdef DTX_DEFINE_COMMON
+#define DTX_COMMON
+#else
+#define DTX_COMMON extern
+#endif
+
+DTX_COMMON struct dtx_font *dtx_font;
+DTX_COMMON int dtx_font_sz;
+DTX_COMMON int dtx_buf_mode;	/* DTX_NBF is 0 */
+DTX_COMMON float dtx_cur_color[4];
+DTX_COMMON int dtx_cur_color_int[4];
+DTX_COMMON float dtx_cur_offset[2];
+
+#define fperror(str) \
+	fprintf(stderr, "%s: %s\n", (str), strerror(errno))
+
+/* returns zero if it should NOT be printed and modifies xpos/ypos */
+/* implemented in font.c */
+struct dtx_glyphmap *dtx_proc_char(int code, float *xpos, float *ypos);
+
+DTX_COMMON const char *(*dtx_drawchar)(const char*, float*, float*, int*);
+DTX_COMMON void (*dtx_drawflush)(void);
+
+int dtx_gl_setopt(enum dtx_option opt, int val);
+int dtx_gl_getopt(enum dtx_option opt, int *ret);
+int dtx_rast_setopt(enum dtx_option opt, int val);
+int dtx_rast_getopt(enum dtx_option opt, int *ret);
+
+#endif	/* DRAWTEXT_IMPL_H_ */