79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 11.03.2017
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*
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* Font system interface.
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*
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*/
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// TOP
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#if !defined(FCODER_FONT_INTERFACE_H)
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#define FCODER_FONT_INTERFACE_H
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typedef u32 Font_ID;
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struct Render_Font;
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struct Glyph_Page;
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#define Sys_Font_Get_Count_Sig(name_) u32 (name_)(void)
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typedef Sys_Font_Get_Count_Sig(Font_Get_Count_Function);
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#define Sys_Font_Get_IDs_By_Index_Sig(name_) b32 (name_)(Font_ID first_index, u32 index_count, u32 *id_out)
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typedef Sys_Font_Get_IDs_By_Index_Sig(Font_Get_IDs_By_Index_Function);
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#define Sys_Font_Get_Name_By_Index_Sig(name_) u32 (name_)(u32 font_index, char *str_out, u32 str_out_cap)
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typedef Sys_Font_Get_Name_By_Index_Sig(Font_Get_Name_By_Index_Function);
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#define Sys_Font_Get_Name_By_ID_Sig(name_) u32 (name_)(Font_ID font_id, char *str_out, u32 str_out_cap)
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typedef Sys_Font_Get_Name_By_ID_Sig(Font_Get_Name_By_ID_Function);
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#define Sys_Font_Get_Render_Data_By_ID_Sig(name_) Render_Font* (name_)(Font_ID font_id)
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typedef Sys_Font_Get_Render_Data_By_ID_Sig(Font_Get_Render_Data_By_ID_Function);
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#define Sys_Font_Load_Page_Sig(name_) void (name_)(Render_Font *font, Glyph_Page *page, u32 page_number)
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typedef Sys_Font_Load_Page_Sig(Font_Load_Page_Function);
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#define Sys_Font_Allocate_Sig(name_) void* (name_)(i32 size)
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typedef Sys_Font_Allocate_Sig(Font_Allocate_Function);
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#define Sys_Font_Free_Sig(name_) void (name_)(void *ptr)
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typedef Sys_Font_Free_Sig(Font_Free_Function);
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struct Font_Functions{
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Font_Get_Count_Function *get_count;
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Font_Get_IDs_By_Index_Function *get_ids_by_index;
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Font_Get_Name_By_Index_Function *get_name_by_index;
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Font_Get_Name_By_ID_Function *get_name_by_id;
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Font_Get_Render_Data_By_ID_Function *get_render_data_by_id;
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Font_Load_Page_Function *load_page;
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Font_Allocate_Function *allocate;
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Font_Free_Function *free;
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};
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internal u32 font_get_id_by_name(struct System_Functions *system, String name);
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internal f32 font_get_byte_advance(Render_Font *font);
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internal f32*font_get_byte_sub_advances(Render_Font *font);
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internal i32 font_get_height(Render_Font *font);
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internal i32 font_get_ascent(Render_Font *font);
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internal i32 font_get_descent(Render_Font *font);
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internal i32 font_get_line_skip(Render_Font *font);
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internal i32 font_get_advance(Render_Font *font);
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internal b32 font_can_render(struct System_Functions *system, Render_Font *font, u32 codepoint);
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internal f32 font_get_glyph_advance(struct System_Functions *system, Render_Font *font, u32 codepoint);
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struct Glyph_Data;
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internal Glyph_Data font_get_glyph(System_Functions *system, Render_Font *font, u32 codepoint);
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internal Glyph_Page *font_get_or_make_page(struct System_Functions *system, Render_Font *font, u32 page_number);
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#endif
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// BOTTOM
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