1 files changed, 52 insertions, 0 deletions
diff --git a/src/render/gl_2d_font.h b/src/render/gl_2d_font.h
new file mode 100644
index 0000000..71154c0
--- /dev/null
+++ b/src/render/gl_2d_font.h
@@ -0,0 +1,52 @@
+#pragma once
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#include "gl.h"
+#include "../util/thread.h"
+
+extern THREAD_MUTEX font_mutex;
+
+typedef struct {
+  F32 offset_x;
+  F32 offset_y;
+  U32 width;
+  U32 height;
+  F32 advance_x;
+  F32 advance_y;
+  U32 bearing;
+} FONT_GLYPH;
+
+const I32 GL_FONT_MAX_GLYPHS = 256;
+typedef struct GL_FONT {
+  FT_Face face;
+  I32  size;
+
+  U32* bitmap;
+  U32 bitmap_width;
+  U32 bitmap_height;
+  U32 char_width;
+  U32 char_height;
+
+  GL_TEX2D* atlas;
+  const char* name;
+
+  FONT_GLYPH glyphs[GL_FONT_MAX_GLYPHS];
+} *PGL_FONT;
+
+GL_FONT* gl_font_create( GL_DATA* gl, const char* path, I32 size );
+void gl_font_destroy( GL_DATA* gl, GL_FONT* font );
+
+void gl_font_draw( GL_FONT* font, GL_SHADER_PROGRAM* shader, VEC2 pos, const char* text, CLR color, F32 scale = 1.0f );
+void gl_font_textured(
+  GL_FONT* font,
+  GL_SHADER_PROGRAM* shader,
+  VEC2 pos,
+  const char* text,
+  GL_TEX2D* tex,
+  CLR color = (CLR){1.f, 1.f, 1.f, 1.f},
+  F32 scale = 1.0f
+);
+
+VEC2 gl_font_dim( GL_FONT* font, const char* text, F32 scale = 1.0f );
+void gl_font_fit_into_box( GL_FONT* font, const char* source, char* out, F32 box_width, F32 box_height, F32 scale );