package opengl

import (
	"github.com/hajimehoshi/go-ebiten/graphics"
	"github.com/hajimehoshi/go-ebiten/graphics/opengl/texture"
	"image"
)

type Device struct {
	ids    *ids
}

func NewDevice(screenWidth, screenHeight, screenScale int) *Device {
	device := &Device{
		ids: newIds(),
	}
	return device
}

func (d *Device) CreateCanvas(screenWidth, screenHeight, screenScale int) *Canvas {
	return newCanvas(d.ids, screenWidth, screenHeight, screenScale)
}

func (d *Device) Update(canvas *Canvas, draw func(graphics.Canvas)) {
	canvas.update(draw)
}

func (d *Device) CreateRenderTarget(width, height int) (graphics.RenderTargetId, error) {
	renderTargetId, err := d.ids.CreateRenderTarget(width, height, texture.FilterLinear)
	if err != nil {
		return 0, err
	}
	return renderTargetId, nil
}

func (d *Device) CreateTexture(img image.Image) (graphics.TextureId, error) {
	return d.ids.CreateTextureFromImage(img)
}