diff --git a/graphicscontext.go b/graphicscontext.go
index 70730b362..e53f39344 100644
--- a/graphicscontext.go
+++ b/graphicscontext.go
@@ -17,7 +17,6 @@ package ebiten
 import (
 	"math"
 
-	"github.com/hajimehoshi/ebiten/internal/graphics"
 	"github.com/hajimehoshi/ebiten/internal/restorable"
 	"github.com/hajimehoshi/ebiten/internal/ui"
 )
@@ -76,7 +75,7 @@ func (c *graphicsContext) SetSize(screenWidth, screenHeight int, screenScale flo
 
 func (c *graphicsContext) initializeIfNeeded() error {
 	if !c.initialized {
-		if err := graphics.Reset(); err != nil {
+		if err := restorable.Reset(); err != nil {
 			return err
 		}
 		c.initialized = true
@@ -100,7 +99,7 @@ func drawWithFittingScale(dst *Image, src *Image) {
 func (c *graphicsContext) drawToDefaultRenderTarget() error {
 	_ = c.screen.Clear()
 	drawWithFittingScale(c.screen, c.offscreen2)
-	if err := graphics.FlushCommands(); err != nil {
+	if err := restorable.FlushCommands(); err != nil {
 		return err
 	}
 	return nil
@@ -141,7 +140,7 @@ func (c *graphicsContext) restoreIfNeeded() error {
 	if !r {
 		return nil
 	}
-	if err := graphics.Reset(); err != nil {
+	if err := restorable.Reset(); err != nil {
 		return err
 	}
 	if err := restorable.Restore(); err != nil {
diff --git a/graphicscontext_notjs.go b/graphicscontext_notjs.go
index 4032cdf0e..cac18f781 100644
--- a/graphicscontext_notjs.go
+++ b/graphicscontext_notjs.go
@@ -17,12 +17,12 @@
 package ebiten
 
 import (
-	"github.com/hajimehoshi/ebiten/internal/graphics"
+	"github.com/hajimehoshi/ebiten/internal/restorable"
 )
 
 func (c *graphicsContext) needsRestoring() (bool, error) {
 	// FlushCommands is required because c.offscreen.impl might not have an actual texture.
-	if err := graphics.FlushCommands(); err != nil {
+	if err := restorable.FlushCommands(); err != nil {
 		return false, err
 	}
 	return c.offscreen.restorable.IsInvalidated(), nil
diff --git a/image.go b/image.go
index faffe5d9e..730a565e4 100644
--- a/image.go
+++ b/image.go
@@ -20,7 +20,6 @@ import (
 	"image/color"
 	"runtime"
 
-	"github.com/hajimehoshi/ebiten/internal/graphics"
 	"github.com/hajimehoshi/ebiten/internal/math"
 	"github.com/hajimehoshi/ebiten/internal/opengl"
 	"github.com/hajimehoshi/ebiten/internal/restorable"
@@ -284,7 +283,7 @@ func newImageWithScreenFramebuffer(width, height int, offsetX, offsetY float64)
 	return i
 }
 
-const MaxImageSize = graphics.MaxImageSize
+const MaxImageSize = restorable.MaxImageSize
 
 func checkSize(width, height int) {
 	if width <= 0 {
diff --git a/internal/restorable/image.go b/internal/restorable/image.go
index f95865c10..2b37aff7b 100644
--- a/internal/restorable/image.go
+++ b/internal/restorable/image.go
@@ -26,6 +26,12 @@ import (
 	"github.com/hajimehoshi/ebiten/internal/opengl"
 )
 
+const MaxImageSize = graphics.MaxImageSize
+
+func QuadVertexSizeInBytes() int {
+	return graphics.QuadVertexSizeInBytes()
+}
+
 type drawImageHistoryItem struct {
 	image    *Image
 	vertices []float32
diff --git a/internal/restorable/images.go b/internal/restorable/images.go
index 51dadd0b1..2d13fe813 100644
--- a/internal/restorable/images.go
+++ b/internal/restorable/images.go
@@ -15,6 +15,7 @@
 package restorable
 
 import (
+	"github.com/hajimehoshi/ebiten/internal/graphics"
 	"github.com/hajimehoshi/ebiten/internal/sync"
 )
 
@@ -164,3 +165,11 @@ func (i *images) clearVolatileImages() {
 		img.clearIfVolatile()
 	}
 }
+
+func Reset() error {
+	return graphics.Reset()
+}
+
+func FlushCommands() error {
+	return graphics.FlushCommands()
+}
diff --git a/vertices.go b/vertices.go
index 3f195c75d..ec9ba066a 100644
--- a/vertices.go
+++ b/vertices.go
@@ -16,7 +16,7 @@ package ebiten
 
 import (
 	"github.com/hajimehoshi/ebiten/internal/affine"
-	"github.com/hajimehoshi/ebiten/internal/graphics"
+	"github.com/hajimehoshi/ebiten/internal/restorable"
 )
 
 // texelAdjustment represents a number to be used to adjust texel.
@@ -26,7 +26,7 @@ import (
 const texelAdjustment = 256
 
 var (
-	quadFloat32Num     = graphics.QuadVertexSizeInBytes() / 4
+	quadFloat32Num     = restorable.QuadVertexSizeInBytes() / 4
 	theVerticesBackend = &verticesBackend{}
 )