/* date = April 9th 2026 7:52 pm */

#ifndef EDITOR_RENDERER_H
#define EDITOR_RENDERER_H
//~ Types

typedef struct font_atlas font_atlas;
struct font_atlas
{
    s32 Width;
    s32 Height;
    u8 *Data;
    
    f32 HeightPx;
    f32 FontScale;
    font *Font;
    
    rune FirstCodepoint;
    s32 CodepointsCount;
    
    rune IconsFirstCodepoint;
    s32 IconsCodepointsCount;
    
    f32 PixelScaleWidth;
    f32 PixelScaleHeight;
    
    stbtt_packedchar *PackedChars;
    stbtt_aligned_quad *AlignedQuads;
};

NO_STRUCT_PADDING_BEGIN
typedef struct rect_instance rect_instance;
struct rect_instance
{
    v4 Dest;
    v4 TexSrc;
    
    // TODO(luca): Metaprogram
    v4 Color0;
    v4 Color1;
    v4 Color2;
    v4 Color3;
    v4 CornerRadii;
    
    f32 Border;
    f32 Softness;
    
    f32 HasTexture;
};
NO_STRUCT_PADDING_END

//~ Globals
global_variable rect_instance *GlobalRectsInstances = 0;
global_variable u64 GlobalRectsCount = 0;

#define MaxRectsCount KB(64)

//~ API
internal void RenderBuildAtlas(arena *Arena, font_atlas *Atlas, font *TextFont, font *IconsFont, f32 HeightPx);
internal rect_instance *DrawRect(v4 Dest, v4 Color, 
                                 f32 CornerRadius, f32 BorderThickness, f32 Softness);
internal rect_instance *DrawRectChar(font_atlas *Atlas, v2 Pos, rune Codepoint, v4 Color);
internal void RenderInit(gl_render_state *Render);
internal void RenderCleanup(gl_render_state *Render);
internal void RenderBeginFrame(arena *Arena, s32 Width, s32 Height);
internal void RenderClear(void);
internal void RenderDrawAllRectangles(gl_render_state *Render, v2 BufferDim, font_atlas *Atlas);

#endif //EDITOR_RENDERER_H