Function UI_init_context

include/ui/ui_core.cpp:601–640

* @param UI_Context *ctx : pointer to a UI_Context struct allocated by the user in memory. * **/

 * @param UI_Context *ctx : pointer to a UI_Context struct allocated by the user in memory.
 * **/
UI_Context * UI_init_context() {
    UI_Context *ctx = (UI_Context *)malloc(sizeof(UI_Context));
    UI_assert(ctx != nullptr);
    memset(ctx, 0, sizeof(*ctx));
    // TODO(Wassim): We REALLY need an arena allocator, all this binary tree is run by pointers
    // this is just a placeholder hack that should be changed later!
	ctx->buffers[0].init_reserve(GB(4), 5000);
	ctx->buffers[1].init_reserve(GB(4), 5000);
    ctx->parents.init_reserve(GB(4), 1000);
	ctx->data_chunks.init_reserve(GB(4), 1000);
	ctx->blocks_hit_test.init_reserve(GB(4), 10000);
    ctx->hashes.init_reserve(GB(4), 5000);

    ctx->vertices.init_null();
    ctx->fonts.init_null();         	ctx->fonts.reserve(100);

    for (int i = 0; i < UI_MAX_TEXTURES; i++)
        ctx->textures[i] = 0;
    
    FT_Init_FreeType(&ctx->ft_lib);
    FT_Library_SetLcdFilter(ctx->ft_lib, FT_LCD_FILTER_LIGHT);

	ctx->strings.init_reserve(GB(4), 1024 * 128);

	ctx->buffer_index = 0;
    ctx->frame_id = 0;
    ctx->backend = UI_Render_Backend_Type::None;
    ctx->viewport = v2(0,0);
    ctx->backend_context = nullptr;
    ctx->vertices.init_null();
	ctx->debug.last_block_count = 0;
	ctx->debug.allocated_bytes = 0;
	ctx->debug.last_vertex_count = 0;
	ctx->string_storage_size = 0;
	ctx->string_storage_capacity = 5000;
	ctx->string_storage = (char*)malloc(ctx->string_storage_capacity);

    ctx->initialized = true;
    return ctx;
}

//void UI_push_ID_(UI_Context *ctx, char* label) {
//	UI_assert(ctx != nullptr);