updated headers

src/headers/SP_functions.h

@@ -0,0 +1,7 @@
+#ifndef SP_FUNCTIONS_H
+#define SP_FUNCTIONS_H
+
+SP_font* SP_load_font(char *filename);
+void SP_free_font(SP_font* font);
+
+#endif

src/headers/SP_structs.h

@@ -0,0 +1,58 @@
+#ifndef SP_STRUCTS_H
+#define SP_STRUCTS_H
+
+typedef struct {
+    uint16_t left, right;
+    int16_t value; // kerning value for the above pair. If it's more than 0, the cahracters will be moved apart. If it's less than 0, the characters will be moved closer
+} SP_kerning_pair;
+
+typedef struct {
+    int16_t ascender;
+    int16_t descender;
+    int16_t line_gap;
+    uint16_t advance_max_width;
+    int16_t min_left_side_bearing;
+    int16_t min_right_side_bearing;
+    int16_t x_max_extent;
+    int16_t carat_slope_rise;
+    int16_t carat_slope_run;
+    int16_t carat_offset;
+    int16_t metric_data_format;
+    uint16_t number_of_h_metrics;
+} SP_hhea_table;
+
+typedef struct {
+    uint16_t advance_width;
+    int16_t left_side_bearing;
+} SP_long_hor_metric;
+
+typedef struct {
+    int scale_x, scale01, scale10, scale_y;
+    int glyph_index;
+    int16_t arg1, arg2;
+} SP_component;
+
+typedef struct {
+    int *x_coords, *y_coords, *contour_end_indicies; 
+    int number_of_points, number_of_contours, number_of_components;
+    int advance_width;
+    uint8_t *flags;
+    int16_t x_min, y_min, x_max, y_max;
+    SP_component *components;
+    int is_composite;
+} SP_glyph;
+
+typedef struct {
+    int current_byte, number_of_glyphs, number_of_kerning_pairs, *glyph_offsets; 
+    uint16_t *unicode_to_glyph_indicies;
+    float units_per_em;
+    uint8_t *buffer;
+    SP_glyph *glyphs;
+    int16_t index_to_loca_format;
+    SP_long_hor_metric *h_metrics;
+    SP_hhea_table hhea_table;
+    int16_t *left_side_bearings;
+    SP_kerning_pair *kerning_pairs; 
+} SP_font;
+
+#endif