all: update dependencies

gameforui.go

@@ -46,7 +46,7 @@ func newGameForUI(game Game, transparent bool) *gameForUI {
 		transparent: transparent,
 	}
 
-	s, err := NewShader(builtinshader.ScreenShaderSource)
+	s, err := newShader(builtinshader.ScreenShaderSource, "screen")
 	if err != nil {
 		panic(fmt.Sprintf("ebiten: compiling the screen shader failed: %v", err))
 	}

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/ebitengine/purego v0.8.0-alpha.5
 	github.com/gen2brain/mpeg v0.3.2-0.20240412154320-a2ac4fc8a46f
 	github.com/go-text/typesetting v0.1.1
-	github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.4.0.20240905090502-03ded50a2328
+	github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.5
 	github.com/hajimehoshi/go-mp3 v0.3.4
 	github.com/jakecoffman/cp v1.2.1
 	github.com/jezek/xgb v1.1.1
@@ -17,7 +17,7 @@ require (
 	github.com/kisielk/errcheck v1.7.0
 	golang.org/x/image v0.19.0
 	golang.org/x/sync v0.8.0
-	golang.org/x/sys v0.24.0
+	golang.org/x/sys v0.25.0
 	golang.org/x/text v0.17.0
 	golang.org/x/tools v0.24.0
 )

go.sum

@@ -13,8 +13,8 @@ github.com/go-text/typesetting v0.1.1/go.mod h1:d22AnmeKq/on0HNv73UFriMKc4Ez6EqZ
 github.com/go-text/typesetting-utils v0.0.0-20231211103740-d9332ae51f04 h1:zBx+p/W2aQYtNuyZNcTfinWvXBQwYtDfme051PR/lAY=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.4.0.20240905090502-03ded50a2328 h1:AYqx/yoXuPMmNJMXEblljVeqFDQnKFu5QOjHZMhGfMY=
+github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.5 h1:gtIcN2INlD2qlfUiECuvbI0moNIoANgIY7MwgW4cFGE=
-github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.4.0.20240905090502-03ded50a2328/go.mod h1:/GmYyEKgzzM7dzJBsL7aS5iR83Dr666E5bhQLVVPYsw=
+github.com/hajimehoshi/bitmapfont/v3 v3.2.0-alpha.5/go.mod h1:/GmYyEKgzzM7dzJBsL7aS5iR83Dr666E5bhQLVVPYsw=
 github.com/hajimehoshi/go-mp3 v0.3.4 h1:NUP7pBYH8OguP4diaTZ9wJbUbk3tC0KlfzsEpWmYj68=
 github.com/hajimehoshi/go-mp3 v0.3.4/go.mod h1:fRtZraRFcWb0pu7ok0LqyFhCUrPeMsGRSVop0eemFmo=
 github.com/hajimehoshi/oto/v2 v2.3.1/go.mod h1:seWLbgHH7AyUMYKfKYT9pg7PhUu9/SisyJvNTT+ASQo=
@@ -74,8 +74,8 @@ golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
+golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
-golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

internal/atlas/image.go

@@ -156,6 +156,7 @@ const (
 	// A screen image is also unmanaged.
 	ImageTypeScreen
 
+	// ImageTypeVolatile is a volatile image that is cleared every frame.
 	ImageTypeVolatile
 
 	// ImageTypeUnmanaged is an unmanaged image that is not on an atlas.

internal/atlas/shader.go

@@ -24,12 +24,14 @@ import (
 type Shader struct {
 	ir     *shaderir.Program
 	shader *restorable.Shader
+	name   string
 }
 
-func NewShader(ir *shaderir.Program) *Shader {
+func NewShader(ir *shaderir.Program, name string) *Shader {
 	// A shader is initialized lazily, and the lock is not needed.
 	return &Shader{
 		ir:   ir,
+		name: name,
 	}
 }
 
@@ -45,7 +47,7 @@ func (s *Shader) ensureShader() *restorable.Shader {
 	if s.shader != nil {
 		return s.shader
 	}
-	s.shader = restorable.NewShader(s.ir)
+	s.shader = restorable.NewShader(s.ir, s.name)
 	runtime.SetFinalizer(s, (*Shader).finalize)
 	return s.shader
 }

internal/atlas/shader_test.go

@@ -36,12 +36,12 @@ func TestShaderFillTwice(t *testing.T) {
 	is := graphics.QuadIndices()
 	dr := image.Rect(0, 0, w, h)
 	g := ui.Get().GraphicsDriverForTesting()
-	s0 := atlas.NewShader(etesting.ShaderProgramFill(0xff, 0xff, 0xff, 0xff))
+	s0 := atlas.NewShader(etesting.ShaderProgramFill(0xff, 0xff, 0xff, 0xff), "")
 	dst.DrawTriangles([graphics.ShaderSrcImageCount]*atlas.Image{}, vs, is, graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s0, nil, graphicsdriver.FillRuleFillAll)
 
 	// Vertices must be recreated (#1755)
 	vs = quadVertices(w, h, 0, 0, 1)
-	s1 := atlas.NewShader(etesting.ShaderProgramFill(0x80, 0x80, 0x80, 0xff))
+	s1 := atlas.NewShader(etesting.ShaderProgramFill(0x80, 0x80, 0x80, 0xff), "")
 	dst.DrawTriangles([graphics.ShaderSrcImageCount]*atlas.Image{}, vs, is, graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s1, nil, graphicsdriver.FillRuleFillAll)
 
 	pix := make([]byte, 4*w*h)
@@ -89,7 +89,7 @@ func TestImageDrawTwice(t *testing.T) {
 }
 
 func TestGCShader(t *testing.T) {
-	s := atlas.NewShader(etesting.ShaderProgramFill(0xff, 0xff, 0xff, 0xff))
+	s := atlas.NewShader(etesting.ShaderProgramFill(0xff, 0xff, 0xff, 0xff), "")
 
 	// Use the shader to initialize it.
 	const w, h = 1, 1

internal/graphicscommand/command.go

@@ -93,6 +93,8 @@ func (c *drawTrianglesCommand) String() string {
 	dst := fmt.Sprintf("%d", c.dst.id)
 	if c.dst.screen {
 		dst += " (screen)"
+	} else if c.dst.attribute != "" {
+		dst += " (" + c.dst.attribute + ")"
 	}
 
 	var srcstrs [graphics.ShaderSrcImageCount]string
@@ -104,10 +106,17 @@ func (c *drawTrianglesCommand) String() string {
 		srcstrs[i] = fmt.Sprintf("%d", src.id)
 		if src.screen {
 			srcstrs[i] += " (screen)"
+		} else if src.attribute != "" {
+			srcstrs[i] += " (" + src.attribute + ")"
 		}
 	}
 
-	return fmt.Sprintf("draw-triangles: dst: %s <- src: [%s], num of dst regions: %d, num of indices: %d, blend: %s, fill rule: %s, shader id: %d", dst, strings.Join(srcstrs[:], ", "), len(c.dstRegions), c.numIndices(), blend, c.fillRule, c.shader.id)
+	shader := fmt.Sprintf("%d", c.shader.id)
+	if c.shader.name != "" {
+		shader += " (" + c.shader.name + ")"
+	}
+
+	return fmt.Sprintf("draw-triangles: dst: %s <- src: [%s], num of dst regions: %d, num of indices: %d, blend: %s, fill rule: %s, shader: %s", dst, strings.Join(srcstrs[:], ", "), len(c.dstRegions), c.numIndices(), blend, c.fillRule, shader)
 }
 
 // Exec executes the drawTrianglesCommand.
@@ -334,10 +343,15 @@ type newImageCommand struct {
 	width     int
 	height    int
 	screen    bool
+	attribute string
 }
 
 func (c *newImageCommand) String() string {
-	return fmt.Sprintf("new-image: result: %d, width: %d, height: %d, screen: %t", c.result.id, c.width, c.height, c.screen)
+	str := fmt.Sprintf("new-image: result: %d, width: %d, height: %d, screen: %t", c.result.id, c.width, c.height, c.screen)
+	if c.attribute != "" {
+		str += ", attribute: " + c.attribute
+	}
+	return str
 }
 
 // Exec executes a newImageCommand.

internal/graphicscommand/image.go

@@ -37,6 +37,9 @@ type Image struct {
 	internalHeight int
 	screen         bool
 
+	// attribute is used only for logs.
+	attribute string
+
 	// id is an identifier for the image. This is used only when dumping the information.
 	//
 	// This is duplicated with graphicsdriver.Image's ID, but this id is still necessary because this image might not
@@ -57,18 +60,20 @@ func genNextImageID() int {
 // NewImage returns a new image.
 //
 // Note that the image is not initialized yet.
-func NewImage(width, height int, screenFramebuffer bool) *Image {
+func NewImage(width, height int, screenFramebuffer bool, attribute string) *Image {
 	i := &Image{
 		width:     width,
 		height:    height,
 		screen:    screenFramebuffer,
 		id:        genNextImageID(),
+		attribute: attribute,
 	}
 	c := &newImageCommand{
 		result:    i,
 		width:     width,
 		height:    height,
 		screen:    screenFramebuffer,
+		attribute: attribute,
 	}
 	theCommandQueueManager.enqueueCommand(c)
 	return i

internal/graphicscommand/image_test.go

@@ -35,7 +35,7 @@ func init() {
 	if err != nil {
 		panic(fmt.Sprintf("graphicscommand: compiling the nearest shader failed: %v", err))
 	}
-	nearestFilterShader = graphicscommand.NewShader(ir)
+	nearestFilterShader = graphicscommand.NewShader(ir, "")
 }
 
 func TestMain(m *testing.M) {
@@ -50,8 +50,8 @@ func quadVertices(w, h float32) []float32 {
 
 func TestClear(t *testing.T) {
 	const w, h = 1024, 1024
-	src := graphicscommand.NewImage(w/2, h/2, false)
+	src := graphicscommand.NewImage(w/2, h/2, false, "")
-	dst := graphicscommand.NewImage(w, h, false)
+	dst := graphicscommand.NewImage(w, h, false, "")
 
 	vs := quadVertices(w/2, h/2)
 	is := graphics.QuadIndices()
@@ -81,9 +81,9 @@ func TestClear(t *testing.T) {
 
 func TestWritePixelsPartAfterDrawTriangles(t *testing.T) {
 	const w, h = 32, 32
-	clr := graphicscommand.NewImage(w, h, false)
+	clr := graphicscommand.NewImage(w, h, false, "")
-	src := graphicscommand.NewImage(w/2, h/2, false)
+	src := graphicscommand.NewImage(w/2, h/2, false, "")
-	dst := graphicscommand.NewImage(w, h, false)
+	dst := graphicscommand.NewImage(w, h, false, "")
 	vs := quadVertices(w/2, h/2)
 	is := graphics.QuadIndices()
 	dr := image.Rect(0, 0, w, h)
@@ -101,15 +101,15 @@ func TestWritePixelsPartAfterDrawTriangles(t *testing.T) {
 
 func TestShader(t *testing.T) {
 	const w, h = 16, 16
-	clr := graphicscommand.NewImage(w, h, false)
+	clr := graphicscommand.NewImage(w, h, false, "")
-	dst := graphicscommand.NewImage(w, h, false)
+	dst := graphicscommand.NewImage(w, h, false, "")
 	vs := quadVertices(w, h)
 	is := graphics.QuadIndices()
 	dr := image.Rect(0, 0, w, h)
 	dst.DrawTriangles([graphics.ShaderSrcImageCount]*graphicscommand.Image{clr}, vs, is, graphicsdriver.BlendClear, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, nearestFilterShader, nil, graphicsdriver.FillRuleFillAll)
 
 	g := ui.Get().GraphicsDriverForTesting()
-	s := graphicscommand.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff))
+	s := graphicscommand.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff), "")
 	dst.DrawTriangles([graphics.ShaderSrcImageCount]*graphicscommand.Image{}, vs, is, graphicsdriver.BlendSourceOver, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s, nil, graphicsdriver.FillRuleFillAll)
 
 	pix := make([]byte, 4*w*h)
@@ -136,7 +136,7 @@ func TestShader(t *testing.T) {
 // Issue #3036
 func TestSuccessiveWritePixels(t *testing.T) {
 	const w, h = 32, 32
-	dst := graphicscommand.NewImage(w, h, false)
+	dst := graphicscommand.NewImage(w, h, false, "")
 
 	dst.WritePixels(graphics.NewManagedBytes(4, func(bs []byte) {
 		for i := range bs {

internal/graphicscommand/shader.go

@@ -31,12 +31,16 @@ type Shader struct {
 	shader graphicsdriver.Shader
 	ir     *shaderir.Program
 	id     int
+
+	// name is used only for logging.
+	name string
 }
 
-func NewShader(ir *shaderir.Program) *Shader {
+func NewShader(ir *shaderir.Program, name string) *Shader {
 	s := &Shader{
 		ir:   ir,
 		id:   genNextShaderID(),
+		name: name,
 	}
 	c := &newShaderCommand{
 		result: s,

internal/restorable/image.go

@@ -156,8 +156,13 @@ func NewImage(width, height int, imageType ImageType) *Image {
 		panic("restorable: graphics driver must be ready at NewImage but not")
 	}
 
+	var attribute string
+	switch imageType {
+	case ImageTypeVolatile:
+		attribute = "volatile"
+	}
 	i := &Image{
-		image:     graphicscommand.NewImage(width, height, imageType == ImageTypeScreen),
+		image:     graphicscommand.NewImage(width, height, imageType == ImageTypeScreen, attribute),
 		width:     width,
 		height:    height,
 		imageType: imageType,
@@ -566,7 +571,7 @@ func (i *Image) restore(graphicsDriver graphicsdriver.Graphics) error {
 	case ImageTypeScreen:
 		// The screen image should also be recreated because framebuffer might
 		// be changed.
-		i.image = graphicscommand.NewImage(w, h, true)
+		i.image = graphicscommand.NewImage(w, h, true, "")
 		i.basePixels.Dispose()
 		i.basePixels = Pixels{}
 		i.clearDrawTrianglesHistory()
@@ -574,7 +579,7 @@ func (i *Image) restore(graphicsDriver graphicsdriver.Graphics) error {
 		i.staleRegions = i.staleRegions[:0]
 		return nil
 	case ImageTypeVolatile:
-		i.image = graphicscommand.NewImage(w, h, false)
+		i.image = graphicscommand.NewImage(w, h, false, "volatile")
 		iw, ih := i.image.InternalSize()
 		clearImage(i.image, image.Rect(0, 0, iw, ih))
 		return nil
@@ -584,7 +589,7 @@ func (i *Image) restore(graphicsDriver graphicsdriver.Graphics) error {
 		panic("restorable: pixels must not be stale when restoring")
 	}
 
-	gimg := graphicscommand.NewImage(w, h, false)
+	gimg := graphicscommand.NewImage(w, h, false, "")
 	// Clear the image explicitly.
 	iw, ih := gimg.InternalSize()
 	clearImage(gimg, image.Rect(0, 0, iw, ih))

internal/restorable/shader.go

@@ -28,12 +28,14 @@ import (
 type Shader struct {
 	shader *graphicscommand.Shader
 	ir     *shaderir.Program
+	name   string
 }
 
-func NewShader(ir *shaderir.Program) *Shader {
+func NewShader(ir *shaderir.Program, name string) *Shader {
 	s := &Shader{
-		shader: graphicscommand.NewShader(ir),
+		shader: graphicscommand.NewShader(ir, name),
 		ir:     ir,
+		name:   name,
 	}
 	theImages.addShader(s)
 	return s
@@ -47,7 +49,7 @@ func (s *Shader) Dispose() {
 }
 
 func (s *Shader) restore() {
-	s.shader = graphicscommand.NewShader(s.ir)
+	s.shader = graphicscommand.NewShader(s.ir, s.name)
 }
 
 func (s *Shader) Unit() shaderir.Unit {
@@ -90,7 +92,7 @@ func init() {
 	if err := wg.Wait(); err != nil {
 		panic(err)
 	}
-	NearestFilterShader = NewShader(nearestIR)
+	NearestFilterShader = NewShader(nearestIR, "nearest")
-	LinearFilterShader = NewShader(linearIR)
+	LinearFilterShader = NewShader(linearIR, "linear")
-	clearShader = NewShader(clearIR)
+	clearShader = NewShader(clearIR, "clear")
 }

internal/restorable/shader_test.go

@@ -53,7 +53,7 @@ func TestShader(t *testing.T) {
 	img := restorable.NewImage(1, 1, restorable.ImageTypeRegular)
 	defer img.Dispose()
 
-	s := restorable.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff))
+	s := restorable.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff), "")
 	dr := image.Rect(0, 0, 1, 1)
 	img.DrawTriangles([graphics.ShaderSrcImageCount]*restorable.Image{}, quadVertices(1, 1, 0, 0), graphics.QuadIndices(), graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s, nil, graphicsdriver.FillRuleFillAll)
 
@@ -82,7 +82,7 @@ func TestShaderChain(t *testing.T) {
 
 	imgs[0].WritePixels(bytesToManagedBytes([]byte{0xff, 0, 0, 0xff}), image.Rect(0, 0, 1, 1))
 
-	s := restorable.NewShader(etesting.ShaderProgramImages(1))
+	s := restorable.NewShader(etesting.ShaderProgramImages(1), "")
 	for i := 0; i < num-1; i++ {
 		dr := image.Rect(0, 0, 1, 1)
 		imgs[i+1].DrawTriangles([graphics.ShaderSrcImageCount]*restorable.Image{imgs[i]}, quadVertices(1, 1, 0, 0), graphics.QuadIndices(), graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s, nil, graphicsdriver.FillRuleFillAll)
@@ -115,7 +115,7 @@ func TestShaderMultipleSources(t *testing.T) {
 
 	dst := restorable.NewImage(1, 1, restorable.ImageTypeRegular)
 
-	s := restorable.NewShader(etesting.ShaderProgramImages(3))
+	s := restorable.NewShader(etesting.ShaderProgramImages(3), "")
 	dr := image.Rect(0, 0, 1, 1)
 	dst.DrawTriangles(srcs, quadVertices(1, 1, 0, 0), graphics.QuadIndices(), graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s, nil, graphicsdriver.FillRuleFillAll)
 
@@ -147,7 +147,7 @@ func TestShaderMultipleSourcesOnOneTexture(t *testing.T) {
 
 	dst := restorable.NewImage(1, 1, restorable.ImageTypeRegular)
 
-	s := restorable.NewShader(etesting.ShaderProgramImages(3))
+	s := restorable.NewShader(etesting.ShaderProgramImages(3), "")
 	dr := image.Rect(0, 0, 1, 1)
 	srcRegions := [graphics.ShaderSrcImageCount]image.Rectangle{
 		image.Rect(0, 0, 1, 1),
@@ -177,7 +177,7 @@ func TestShaderDispose(t *testing.T) {
 	img := restorable.NewImage(1, 1, restorable.ImageTypeRegular)
 	defer img.Dispose()
 
-	s := restorable.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff))
+	s := restorable.NewShader(etesting.ShaderProgramFill(0xff, 0, 0, 0xff), "")
 	dr := image.Rect(0, 0, 1, 1)
 	img.DrawTriangles([graphics.ShaderSrcImageCount]*restorable.Image{}, quadVertices(1, 1, 0, 0), graphics.QuadIndices(), graphicsdriver.BlendCopy, dr, [graphics.ShaderSrcImageCount]image.Rectangle{}, s, nil, graphicsdriver.FillRuleFillAll)
 

internal/ui/shader.go

@@ -32,9 +32,9 @@ type Shader struct {
 	uniformUint32Count int
 }
 
-func NewShader(ir *shaderir.Program) *Shader {
+func NewShader(ir *shaderir.Program, name string) *Shader {
 	return &Shader{
-		shader:       atlas.NewShader(ir),
+		shader:       atlas.NewShader(ir, name),
 		uniformNames: ir.UniformNames[graphics.PreservedUniformVariablesCount:],
 		uniformTypes: ir.Uniforms[graphics.PreservedUniformVariablesCount:],
 	}

shader.go

@@ -38,12 +38,16 @@ type Shader struct {
 //
 // For the details about the shader, see https://ebitengine.org/en/documents/shader.html.
 func NewShader(src []byte) (*Shader, error) {
+	return newShader(src, "")
+}
+
+func newShader(src []byte, name string) (*Shader, error) {
 	ir, err := graphics.CompileShader(src)
 	if err != nil {
 		return nil, err
 	}
 	return &Shader{
-		shader: ui.NewShader(ir),
+		shader: ui.NewShader(ir, name),
 		unit:   ir.Unit,
 	}, nil
 }
@@ -108,7 +112,23 @@ func builtinShader(filter builtinshader.Filter, address builtinshader.Address, u
 		}
 	} else {
 		src := builtinshader.ShaderSource(filter, address, useColorM)
-		s, err := NewShader(src)
+		var name string
+		switch filter {
+		case builtinshader.FilterNearest:
+			name = "nearest"
+		case builtinshader.FilterLinear:
+			name = "linear"
+		}
+		switch address {
+		case builtinshader.AddressClampToZero:
+			name += "-clamptozero"
+		case builtinshader.AddressRepeat:
+			name += "-repeat"
+		}
+		if useColorM {
+			name += "-colorm"
+		}
+		s, err := newShader(src, name)
 		if err != nil {
 			panic(fmt.Sprintf("ebiten: NewShader for a built-in shader failed: %v", err))
 		}