Create atlas for font rendering

1 files changed, 16 insertions, 0 deletions

diff --git a/state.h b/state.h
index 465e9b6..1929cad 100644
--- a/state.h
+++ b/state.h
@@ -16,6 +16,20 @@
 
 #include "./glad/glad.h"
 
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+
+typedef struct {
+	float advance_x, advance_y;
+	uint32_t bitmap_width, bitmap_height;
+	uint32_t texture_offset;
+} metrics_t;
+
+typedef struct {
+	uint32_t width, height;
+	GLuint texture;
+	metrics_t metrics[128];
+} atlas_t;
+
 typedef struct {
 	// wayland
     struct wl_display* display;
@@ -53,6 +67,8 @@ typedef struct {
 	FT_Library ft_library;
 	FT_Face ft_face;
 
+	atlas_t atlas;
+
     bool running;
 
 } client_state;