ebiten/graphics/opengl/device.go
2013-11-29 22:45:18 +09:00

44 lines
946 B
Go

package opengl
import (
"github.com/hajimehoshi/go-ebiten/graphics"
"github.com/hajimehoshi/go-ebiten/graphics/matrix"
)
type Device struct {
context *Context
screenScale int
}
func NewDevice(screenWidth, screenHeight, screenScale int) *Device {
context := newContext(screenWidth, screenHeight, screenScale)
return &Device{
context: context,
screenScale: screenScale,
}
}
func (device *Device) Update(draw func(graphics.Canvas)) {
context := device.context
context.Init()
context.ResetOffscreen()
context.Clear()
draw(context)
context.flush()
context.setMainFramebufferOffscreen()
context.Clear()
scale := float64(device.screenScale)
geometryMatrix := matrix.IdentityGeometry()
geometryMatrix.Scale(scale, scale)
context.DrawRenderTarget(context.screenId,
geometryMatrix, matrix.IdentityColor())
context.flush()
}
func (device *Device) TextureFactory() graphics.TextureFactory {
return device.context
}