Merge 1dd96726c4 into b131264c77

Closes #2987

audio/audio.go

@@ -14,15 +14,14 @@
 
 // Package audio provides audio players.
 //
-// The stream format must be 16-bit little endian and 2 channels. The format is as follows:
+// The stream format must be 16-bit little endian or 32-bit float little endian, and 2 channels. The format is as follows:
 //
 //	[data]      = [sample 1] [sample 2] [sample 3] ...
 //	[sample *]  = [channel 1] ...
 //	[channel *] = [byte 1] [byte 2] ...
 //
-// An audio context (audio.Context object) has a sample rate you can specify and all streams you want to play must have the same
-// sample rate. However, decoders in e.g. audio/mp3 package adjust sample rate automatically,
-// and you don't have to care about it as long as you use those decoders.
+// An audio context (audio.Context object) has a sample rate you can specify
+// and all streams you want to play must have the same sample rate.
 //
 // An audio context can generate 'players' (audio.Player objects),
 // and you can play sound by calling Play function of players.

colorm.go

@@ -20,7 +20,7 @@ import (
 	"github.com/hajimehoshi/ebiten/v2/internal/affine"
 )
 
-// ColorMDim is a dimension of a ColorM.
+// ColorMDim is the dimension of a ColorM.
 //
 // Deprecated: as of v2.5. Use the colorm package instead.
 const ColorMDim = affine.ColorMDim

colorm/colorm.go

@@ -24,7 +24,7 @@ import (
 	"github.com/hajimehoshi/ebiten/v2/internal/builtinshader"
 )
 
-// Dim is a dimension of a ColorM.
+// Dim is the dimension of a ColorM.
 const Dim = affine.ColorMDim
 
 // ColorM represents a matrix to transform coloring when rendering an image.

examples/highdpi/main.go

@@ -15,9 +15,11 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	_ "image/jpeg"
 	"log"
+	"runtime"
 
 	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
@@ -93,7 +95,16 @@ func (g *Game) Draw(screen *ebiten.Image) {
 	op.Filter = ebiten.FilterLinear
 	screen.DrawImage(g.highDPIImage, op)
 
-	ebitenutil.DebugPrint(screen, fmt.Sprintf("(Init) Device Scale Ratio: %0.2f", scale))
+	msg := fmt.Sprintf("Device Scale Ratio: %0.2f", scale)
+	if runtime.GOOS == "js" {
+		if !*flagDisable {
+			msg += "\nHiDPI rendering is enabled. You can disable HiDPI by -disable flag."
+		} else {
+			msg += "\nHiDPI rendering is disabled."
+		}
+	}
+	// TODO: The texts might be too small. Improve legibility.
+	ebitenutil.DebugPrint(screen, msg)
 }
 
 func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
@@ -103,10 +114,16 @@ func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
 	return int(float64(outsideWidth) * s), int(float64(outsideHeight) * s)
 }
 
+var flagDisable = flag.Bool("disable", false, "disables HiDPI rendering (only on browsers)")
+
 func main() {
+	flag.Parse()
+
 	ebiten.SetWindowSize(640, 480)
 	ebiten.SetWindowTitle("High DPI (Ebitengine Demo)")
-	if err := ebiten.RunGame(NewGame()); err != nil {
+	op := &ebiten.RunGameOptions{}
+	op.DisableHiDPI = *flagDisable
+	if err := ebiten.RunGameWithOptions(NewGame(), op); err != nil {
 		log.Fatal(err)
 	}
 }

examples/shaderprecomp/defaultshader.go

@@ -1,33 +0,0 @@
-// Copyright 2020 The Ebiten Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build ignore
-
-//kage:unit pixels
-
-package main
-
-var Time float
-var Cursor vec2
-
-func Fragment(dstPos vec4, srcPos vec2, color vec4) vec4 {
-	pos := (dstPos.xy - imageDstOrigin()) / imageDstSize()
-	pos += Cursor / imageDstSize() / 4
-	clr := 0.0
-	clr += sin(pos.x*cos(Time/15)*80) + cos(pos.y*cos(Time/15)*10)
-	clr += sin(pos.y*sin(Time/10)*40) + cos(pos.x*sin(Time/25)*40)
-	clr += sin(pos.x*sin(Time/5)*10) + sin(pos.y*sin(Time/35)*80)
-	clr *= sin(Time/10) * 0.5
-	return vec4(clr, clr*0.5, sin(clr+Time/3)*0.75, 1)
-}

examples/shaderprecomp/fxc/dummy.fxc

@@ -1 +0,0 @@
-This is a dummy .fxc file to trick Go's embed package.

examples/shaderprecomp/fxc/gen.go

@@ -1,132 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build ignore
-
-// This is a program to generate precompiled HLSL blobs (FXC files).
-//
-// See https://learn.microsoft.com/en-us/windows/win32/direct3dtools/fxc.
-package main
-
-import (
-	"bufio"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-
-	"github.com/hajimehoshi/ebiten/v2/shaderprecomp"
-)
-
-func main() {
-	if err := run(); err != nil {
-		panic(err)
-	}
-}
-
-func run() error {
-	if _, err := exec.LookPath("fxc.exe"); err != nil {
-		if errors.Is(err, exec.ErrNotFound) {
-			fmt.Fprintln(os.Stderr, "fxc.exe not found. Please install Windows SDK.")
-			fmt.Fprintln(os.Stderr, "See https://learn.microsoft.com/en-us/windows/win32/direct3dtools/fxc for more details.")
-			fmt.Fprintln(os.Stderr, "HINT: On PowerShell, you can add a path to the PATH environment variable temporarily like:")
-			fmt.Fprintln(os.Stderr)
-			fmt.Fprintln(os.Stderr, `    & (Get-Process -Id $PID).Path { $env:PATH="C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64;"+$env:PATH; go generate .\examples\shaderprecomp\fxc\ }`)
-			fmt.Fprintln(os.Stderr)
-			os.Exit(1)
-		}
-		return err
-	}
-
-	tmpdir, err := os.MkdirTemp("", "")
-	if err != nil {
-		return err
-	}
-	defer os.RemoveAll(tmpdir)
-
-	srcs := shaderprecomp.AppendBuildinShaderSources(nil)
-
-	defaultSrcBytes, err := os.ReadFile(filepath.Join("..", "defaultshader.go"))
-	if err != nil {
-		return err
-	}
-	srcs = append(srcs, shaderprecomp.NewShaderSource(defaultSrcBytes))
-
-	for i, src := range srcs {
-		// Avoid using errgroup.Group.
-		// Compiling sources in parallel causes a mixed error message on the console.
-		if err := compile(src, i, tmpdir); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func generateHSLSFiles(source *shaderprecomp.ShaderSource, index int, tmpdir string) (vs, ps string, err error) {
-	vsHLSLFilePath := filepath.Join(tmpdir, fmt.Sprintf("%d_vs.hlsl", index))
-	vsf, err := os.Create(vsHLSLFilePath)
-	if err != nil {
-		return "", "", err
-	}
-	defer vsf.Close()
-
-	psHLSLFilePath := filepath.Join(tmpdir, fmt.Sprintf("%d_ps.hlsl", index))
-	psf, err := os.Create(psHLSLFilePath)
-	if err != nil {
-		return "", "", err
-	}
-	defer psf.Close()
-
-	vsfw := bufio.NewWriter(vsf)
-	psfw := bufio.NewWriter(psf)
-	if err := shaderprecomp.CompileToHLSL(vsfw, psfw, source); err != nil {
-		return "", "", err
-	}
-	if err := vsfw.Flush(); err != nil {
-		return "", "", err
-	}
-	if err := psfw.Flush(); err != nil {
-		return "", "", err
-	}
-
-	return vsHLSLFilePath, psHLSLFilePath, nil
-}
-
-func compile(source *shaderprecomp.ShaderSource, index int, tmpdir string) error {
-	// Generate HLSL files. Make sure this process doesn't have any handlers of the files.
-	// Without closing the files, fxc.exe cannot access the files.
-	vsHLSLFilePath, psHLSLFilePath, err := generateHSLSFiles(source, index, tmpdir)
-	if err != nil {
-		return err
-	}
-
-	vsFXCFilePath := fmt.Sprintf("%d_vs.fxc", index)
-	cmd := exec.Command("fxc.exe", "/nologo", "/O3", "/T", shaderprecomp.HLSLVertexShaderProfile, "/E", shaderprecomp.HLSLVertexShaderEntryPoint, "/Fo", vsFXCFilePath, vsHLSLFilePath)
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-
-	psFXCFilePath := fmt.Sprintf("%d_ps.fxc", index)
-	cmd = exec.Command("fxc.exe", "/nologo", "/O3", "/T", shaderprecomp.HLSLPixelShaderProfile, "/E", shaderprecomp.HLSLPixelShaderEntryPoint, "/Fo", psFXCFilePath, psHLSLFilePath)
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-
-	return nil
-}

examples/shaderprecomp/fxc/generate.go

@@ -1,19 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build windows
-
-//go:generate go run gen.go
-
-package fxc

examples/shaderprecomp/main.go

@@ -1,74 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import (
-	_ "embed"
-	"log"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
-)
-
-//go:embed defaultshader.go
-var defaultShaderSourceBytes []byte
-
-type Game struct {
-	defaultShader *ebiten.Shader
-	counter       int
-}
-
-func (g *Game) Update() error {
-	g.counter++
-
-	if g.defaultShader == nil {
-		s, err := ebiten.NewShader(defaultShaderSourceBytes)
-		if err != nil {
-			return err
-		}
-		g.defaultShader = s
-	}
-	return nil
-}
-
-func (g *Game) Draw(screen *ebiten.Image) {
-	cx, cy := ebiten.CursorPosition()
-	w, h := screen.Bounds().Dx(), screen.Bounds().Dy()
-	op := &ebiten.DrawRectShaderOptions{}
-	op.Uniforms = map[string]interface{}{
-		"Time":   float32(g.counter) / float32(ebiten.TPS()),
-		"Cursor": []float32{float32(cx), float32(cy)},
-	}
-	screen.DrawRectShader(w, h, g.defaultShader, op)
-
-	msg := `This is a test for shader precompilation.
-Precompilation works only on macOS so far.
-Note that this example still works even without shader precompilation.`
-	ebitenutil.DebugPrint(screen, msg)
-}
-
-func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
-	return outsideWidth, outsideHeight
-}
-
-func main() {
-	if err := registerPrecompiledShaders(); err != nil {
-		log.Fatal(err)
-	}
-	ebiten.SetWindowTitle("Ebitengine Example (Shader Precompilation)")
-	if err := ebiten.RunGame(&Game{}); err != nil {
-		log.Fatal(err)
-	}
-}

examples/shaderprecomp/metallib/dummy.metallib

@@ -1 +0,0 @@
-This is a dummy .metallib file to trick Go's embed package.

examples/shaderprecomp/metallib/gen.go

@@ -1,95 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build ignore
-
-// This is a program to generate precompiled Metal libraries.
-//
-// See https://developer.apple.com/documentation/metal/shader_libraries/building_a_shader_library_by_precompiling_source_files.
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-
-	"github.com/hajimehoshi/ebiten/v2/shaderprecomp"
-)
-
-func main() {
-	if err := run(); err != nil {
-		panic(err)
-	}
-}
-
-func run() error {
-	tmpdir, err := os.MkdirTemp("", "")
-	if err != nil {
-		return err
-	}
-	defer os.RemoveAll(tmpdir)
-
-	srcs := shaderprecomp.AppendBuildinShaderSources(nil)
-
-	defaultSrcBytes, err := os.ReadFile(filepath.Join("..", "defaultshader.go"))
-	if err != nil {
-		return err
-	}
-	srcs = append(srcs, shaderprecomp.NewShaderSource(defaultSrcBytes))
-
-	for i, src := range srcs {
-		// Avoid using errgroup.Group.
-		// Compiling sources in parallel causes a mixed error message on the console.
-		if err := compile(src, i, tmpdir); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func compile(source *shaderprecomp.ShaderSource, index int, tmpdir string) error {
-	metalFilePath := filepath.Join(tmpdir, fmt.Sprintf("%d.metal", index))
-
-	f, err := os.Create(metalFilePath)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	w := bufio.NewWriter(f)
-	if err := shaderprecomp.CompileToMSL(w, source); err != nil {
-		return err
-	}
-	if err := w.Flush(); err != nil {
-		return err
-	}
-
-	irFilePath := filepath.Join(tmpdir, fmt.Sprintf("%d.ir", index))
-	cmd := exec.Command("xcrun", "-sdk", "macosx", "metal", "-o", irFilePath, "-c", metalFilePath)
-	cmd.Stderr = os.Stderr
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-
-	metallibFilePath := fmt.Sprintf("%d.metallib", index)
-	cmd = exec.Command("xcrun", "-sdk", "macosx", "metallib", "-o", metallibFilePath, irFilePath)
-	cmd.Stderr = os.Stderr
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-
-	return nil
-}

examples/shaderprecomp/register_darwin.go

@@ -1,48 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import (
-	"embed"
-	"errors"
-	"fmt"
-	"io/fs"
-	"os"
-
-	"github.com/hajimehoshi/ebiten/v2/shaderprecomp"
-)
-
-//go:embed metallib/*.metallib
-var metallibs embed.FS
-
-func registerPrecompiledShaders() error {
-	srcs := shaderprecomp.AppendBuildinShaderSources(nil)
-	srcs = append(srcs, shaderprecomp.NewShaderSource(defaultShaderSourceBytes))
-
-	for i, src := range srcs {
-		name := fmt.Sprintf("%d.metallib", i)
-		lib, err := metallibs.ReadFile("metallib/" + name)
-		if err != nil {
-			if errors.Is(err, fs.ErrNotExist) {
-				fmt.Fprintf(os.Stderr, "precompiled Metal library %s was not found. Run 'go generate' for 'metallib' directory to generate them.\n", name)
-				continue
-			}
-			return err
-		}
-		shaderprecomp.RegisterMetalLibrary(src, lib)
-	}
-
-	return nil
-}

examples/shaderprecomp/register_others.go

@@ -1,27 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build !darwin && !windows
-
-package main
-
-import (
-	"fmt"
-	"os"
-)
-
-func registerPrecompiledShaders() error {
-	fmt.Fprintf(os.Stderr, "precompiled shaders are not available in this environment.\n")
-	return nil
-}

examples/shaderprecomp/register_windows.go

@@ -1,61 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import (
-	"embed"
-	"errors"
-	"fmt"
-	"io/fs"
-	"os"
-
-	"github.com/hajimehoshi/ebiten/v2/shaderprecomp"
-)
-
-// https://developer.microsoft.com/en-us/windows/downloads/windows-sdk/
-
-//go:embed fxc/*.fxc
-var fxcs embed.FS
-
-func registerPrecompiledShaders() error {
-	srcs := shaderprecomp.AppendBuildinShaderSources(nil)
-	srcs = append(srcs, shaderprecomp.NewShaderSource(defaultShaderSourceBytes))
-
-	for i, src := range srcs {
-		vsname := fmt.Sprintf("%d_vs.fxc", i)
-		vs, err := fxcs.ReadFile("fxc/" + vsname)
-		if err != nil {
-			if errors.Is(err, fs.ErrNotExist) {
-				fmt.Fprintf(os.Stderr, "precompiled HLSL library %s was not found. Run 'go generate' for 'fxc' directory to generate them.\n", vsname)
-				continue
-			}
-			return err
-		}
-
-		psname := fmt.Sprintf("%d_ps.fxc", i)
-		ps, err := fxcs.ReadFile("fxc/" + psname)
-		if err != nil {
-			if errors.Is(err, fs.ErrNotExist) {
-				fmt.Fprintf(os.Stderr, "precompiled HLSL library %s was not found. Run 'go generate' for 'fxc' directory to generate them.\n", psname)
-				continue
-			}
-			return err
-		}
-
-		shaderprecomp.RegisterFXCs(src, vs, ps)
-	}
-
-	return nil
-}

internal/ui/ui.go

@@ -175,6 +175,7 @@ type RunOptions struct {
 	ScreenTransparent bool
 	SkipTaskbar       bool
 	SingleThread      bool
+	DisableHiDPI      bool
 	X11ClassName      string
 	X11InstanceName   string
 }

internal/ui/ui_js.go

@@ -96,6 +96,7 @@ type userInterfaceImpl struct {
 	cursorShape         CursorShape
 	onceUpdateCalled    bool
 	lastCaptureExitTime time.Time
+	hiDPIEnabled        bool
 
 	context                   *context
 	inputState                InputState
@@ -465,6 +466,7 @@ func (u *UserInterface) init() error {
 		runnableOnUnfocused: true,
 		savedCursorX:        math.NaN(),
 		savedCursorY:        math.NaN(),
+		hiDPIEnabled:        true,
 	}
 
 	// document is undefined on node.js
@@ -762,6 +764,8 @@ func (u *UserInterface) shouldFocusFirst(options *RunOptions) bool {
 func (u *UserInterface) initOnMainThread(options *RunOptions) error {
 	u.setRunning(true)
 
+	u.hiDPIEnabled = !options.DisableHiDPI
+
 	if u.shouldFocusFirst(options) {
 		canvas.Call("focus")
 	}
@@ -815,6 +819,10 @@ func (m *Monitor) Name() string {
 }
 
 func (m *Monitor) DeviceScaleFactor() float64 {
+	if !theUI.hiDPIEnabled {
+		return 1
+	}
+
 	if m.deviceScaleFactor != 0 {
 		return m.deviceScaleFactor
 	}

playstation5/doc_playstaton5.go

@@ -12,8 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//go:build darwin
+//go:build playstation5
 
-//go:generate go run gen.go
+// Package playstation5 provides utilities for PlayStation 5.
+package playstation5
 
-package metallib
+// The actual implementation will be provided by another repository using the -overlay option.

run.go

@@ -274,6 +274,15 @@ type RunGameOptions struct {
 	// The default (zero) value is false, which means that the single thread mode is disabled.
 	SingleThread bool
 
+	// DisableHiDPI indicates whether the rendering for HiDPI is disabled or not.
+	// If HiDPI is disabled, the device scale factor is always 1 i.e. Monitor's DeviceScaleFactor always returns 1.
+	// This is useful to get a better performance on HiDPI displays, in the expense of rendering quality.
+	//
+	// DisableHiDPI is available only on browsers.
+	//
+	// The default (zero) value is false, which means that HiDPI is enabled.
+	DisableHiDPI bool
+
 	// X11DisplayName is a class name in the ICCCM WM_CLASS window property.
 	X11ClassName string
 
@@ -703,6 +712,7 @@ func toUIRunOptions(options *RunGameOptions) *ui.RunOptions {
 		ScreenTransparent: options.ScreenTransparent,
 		SkipTaskbar:       options.SkipTaskbar,
 		SingleThread:      options.SingleThread,
+		DisableHiDPI:      options.DisableHiDPI,
 		X11ClassName:      options.X11ClassName,
 		X11InstanceName:   options.X11InstanceName,
 	}

shaderprecomp/shaderprecomp.go

@@ -1,43 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package shaderprecomp
-
-import (
-	"github.com/hajimehoshi/ebiten/v2/internal/builtinshader"
-)
-
-// AppendBuildinShaderSources appends all the built-in shader sources to the given slice.
-//
-// Do not modify the content of the shader source.
-//
-// AppendBuildinShaderSources is concurrent-safe.
-func AppendBuildinShaderSources(sources []*ShaderSource) []*ShaderSource {
-	for _, s := range builtinshader.AppendShaderSources(nil) {
-		sources = append(sources, NewShaderSource(s))
-	}
-	return sources
-}
-
-// ShaderSource is an object encapsulating a shader source code.
-type ShaderSource struct {
-	source []byte
-}
-
-// NewShaderSource creates a new ShaderSource object from the given source code.
-func NewShaderSource(source []byte) *ShaderSource {
-	return &ShaderSource{
-		source: source,
-	}
-}

shaderprecomp/shaderprecomp_darwin.go

@@ -1,48 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build !playstation5
-
-package shaderprecomp
-
-import (
-	"io"
-
-	"github.com/hajimehoshi/ebiten/v2/internal/graphics"
-	"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal"
-	"github.com/hajimehoshi/ebiten/v2/internal/shaderir/msl"
-)
-
-// CompileToMSL compiles the shader source to Metal Shader Language, and writes the result to w.
-//
-// CompileToMSL is concurrent-safe.
-func CompileToMSL(w io.Writer, source *ShaderSource) error {
-	ir, err := graphics.CompileShader(source.source)
-	if err != nil {
-		return err
-	}
-	if _, err = w.Write([]byte(msl.Compile(ir))); err != nil {
-		return err
-	}
-	return nil
-}
-
-// RegisterMetalLibrary registers a precompiled Metal library for a shader source.
-// library must be the content of a .metallib file.
-// For more details, see https://developer.apple.com/documentation/metal/shader_libraries/building_a_shader_library_by_precompiling_source_files.
-//
-// RegisterMetalLibrary is concurrent-safe.
-func RegisterMetalLibrary(source *ShaderSource, library []byte) {
-	metal.RegisterPrecompiledLibrary(source.source, library)
-}

shaderprecomp/shaderprecomp_windows.go

@@ -1,66 +0,0 @@
-// Copyright 2024 The Ebitengine Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build !playstation5
-
-package shaderprecomp
-
-import (
-	"io"
-
-	"github.com/hajimehoshi/ebiten/v2/internal/graphics"
-	"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/directx"
-	"github.com/hajimehoshi/ebiten/v2/internal/shaderir/hlsl"
-)
-
-const (
-	// HLSLVertexShaderProfile is the target profile for vertex shaders.
-	HLSLVertexShaderProfile = directx.VertexShaderProfile
-
-	// HLSLPixelShaderProfile is the target profile for pixel shaders.
-	HLSLPixelShaderProfile = directx.PixelShaderProfile
-
-	// HLSLVertexShaderEntryPoint is the entry point name for vertex shaders.
-	HLSLVertexShaderEntryPoint = directx.VertexShaderEntryPoint
-
-	// HLSLPixelShaderEntryPoint is the entry point name for pixel shaders.
-	HLSLPixelShaderEntryPoint = directx.PixelShaderEntryPoint
-)
-
-// CompileToHLSL compiles the shader source to High-Level Shader Language to writers.
-//
-// CompileToHLSL is concurrent-safe.
-func CompileToHLSL(vertexWriter, pixelWriter io.Writer, source *ShaderSource) error {
-	ir, err := graphics.CompileShader(source.source)
-	if err != nil {
-		return err
-	}
-	vs, ps := hlsl.Compile(ir)
-	if _, err = vertexWriter.Write([]byte(vs)); err != nil {
-		return err
-	}
-	if _, err = pixelWriter.Write([]byte(ps)); err != nil {
-		return err
-	}
-	return nil
-}
-
-// RegisterFXCs registers a precompiled HLSL (FXC) for a shader source.
-// vertexFXC and pixelFXC must be the content of .fxc files generated by `fxc` command.
-// For more details, see https://learn.microsoft.com/en-us/windows/win32/direct3dtools/dx-graphics-tools-fxc-using.
-//
-// RegisterFXCs is concurrent-safe.
-func RegisterFXCs(source *ShaderSource, vertexFXC, pixelFXC []byte) {
-	directx.RegisterPrecompiledFXCs(source.source, vertexFXC, pixelFXC)
-}

text/v2/atlas.go

@@ -0,0 +1,297 @@
+// Copyright 2024 The Ebitengine Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package text
+
+import (
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/internal/packing"
+)
+
+type glyphAtlas struct {
+	page  *packing.Page
+	image *ebiten.Image
+}
+
+type glyphImage struct {
+	atlas *glyphAtlas
+	node  *packing.Node
+	img   *ebiten.Image
+}
+
+func (i *glyphImage) Image() *ebiten.Image {
+	return i.img
+}
+
+func newGlyphAtlas() *glyphAtlas {
+	return &glyphAtlas{
+		// Note: 128x128 is arbitrary, maybe a better value can be inferred
+		// from the font size or something
+		page:  packing.NewPage(128, 128, 1024), // TODO: not 1024
+		image: ebiten.NewImage(128, 128),
+	}
+}
+
+func (g *glyphAtlas) NewImage(w, h int) *glyphImage {
+	n := g.page.Alloc(w, h)
+	pw, ph := g.page.Size()
+	if pw > g.image.Bounds().Dx() || ph > g.image.Bounds().Dy() {
+		newImage := ebiten.NewImage(pw, ph)
+		newImage.DrawImage(g.image, nil)
+		g.image = newImage
+	}
+
+	return &glyphImage{
+		atlas: g,
+		node:  n,
+		img:   g.image.SubImage(n.Region()).(*ebiten.Image),
+	}
+}
+
+func (g *glyphAtlas) Free(img *glyphImage) {
+	g.page.Free(img.node)
+}
+
+type drawRange struct {
+	atlas *glyphAtlas
+	end   int
+}
+
+// drawList stores triangle versions of DrawImage calls when
+// all images are sub-images of an atlas.
+// Temporary vertices and indices can be re-used after calling
+// Flush, so it is more efficient to keep a reference to a drawList
+// instead of creating a new one every frame.
+type drawList struct {
+	ranges []drawRange
+	vx     []ebiten.Vertex
+	ix     []uint16
+}
+
+// drawCommand is the equivalent of the regular DrawImageOptions
+// but only including options that will not break batching.
+// Filter, Address, Blend and AntiAlias are determined at Flush()
+type drawCommand struct {
+	Image *glyphImage
+
+	ColorScale ebiten.ColorScale
+	GeoM       ebiten.GeoM
+}
+
+var rectIndices = [6]uint16{0, 1, 2, 1, 2, 3}
+
+type point struct {
+	X, Y float32
+}
+
+func pt(x, y float64) point {
+	return point{
+		X: float32(x),
+		Y: float32(y),
+	}
+}
+
+type rectOpts struct {
+	Dsts         [4]point
+	SrcX0, SrcY0 float32
+	SrcX1, SrcY1 float32
+	R, G, B, A   float32
+}
+
+// adjustDestinationPixel is the original ebitengine implementation found here:
+// https://github.com/hajimehoshi/ebiten/blob/v2.8.0-alpha.1/internal/graphics/vertex.go#L102-L126
+func adjustDestinationPixel(x float32) float32 {
+	// Avoid the center of the pixel, which is problematic (#929, #1171).
+	// Instead, align the vertices with about 1/3 pixels.
+	//
+	// The intention here is roughly this code:
+	//
+	//     float32(math.Floor((float64(x)+1.0/6.0)*3) / 3)
+	//
+	// The actual implementation is more optimized than the above implementation.
+	ix := float32(int(x))
+	if x < 0 && x != ix {
+		ix -= 1
+	}
+	frac := x - ix
+	switch {
+	case frac < 3.0/16.0:
+		return ix
+	case frac < 8.0/16.0:
+		return ix + 5.0/16.0
+	case frac < 13.0/16.0:
+		return ix + 11.0/16.0
+	default:
+		return ix + 16.0/16.0
+	}
+}
+
+func appendRectVerticesIndices(vertices []ebiten.Vertex, indices []uint16, index int, opts *rectOpts) ([]ebiten.Vertex, []uint16) {
+	sx0, sy0, sx1, sy1 := opts.SrcX0, opts.SrcY0, opts.SrcX1, opts.SrcY1
+	r, g, b, a := opts.R, opts.G, opts.B, opts.A
+	vertices = append(vertices,
+		ebiten.Vertex{
+			DstX:   adjustDestinationPixel(opts.Dsts[0].X),
+			DstY:   adjustDestinationPixel(opts.Dsts[0].Y),
+			SrcX:   sx0,
+			SrcY:   sy0,
+			ColorR: r,
+			ColorG: g,
+			ColorB: b,
+			ColorA: a,
+		},
+		ebiten.Vertex{
+			DstX:   adjustDestinationPixel(opts.Dsts[1].X),
+			DstY:   adjustDestinationPixel(opts.Dsts[1].Y),
+			SrcX:   sx1,
+			SrcY:   sy0,
+			ColorR: r,
+			ColorG: g,
+			ColorB: b,
+			ColorA: a,
+		},
+		ebiten.Vertex{
+			DstX:   adjustDestinationPixel(opts.Dsts[2].X),
+			DstY:   adjustDestinationPixel(opts.Dsts[2].Y),
+			SrcX:   sx0,
+			SrcY:   sy1,
+			ColorR: r,
+			ColorG: g,
+			ColorB: b,
+			ColorA: a,
+		},
+		ebiten.Vertex{
+			DstX:   adjustDestinationPixel(opts.Dsts[3].X),
+			DstY:   adjustDestinationPixel(opts.Dsts[3].Y),
+			SrcX:   sx1,
+			SrcY:   sy1,
+			ColorR: r,
+			ColorG: g,
+			ColorB: b,
+			ColorA: a,
+		},
+	)
+
+	indiceCursor := uint16(index * 4)
+	indices = append(indices,
+		rectIndices[0]+indiceCursor,
+		rectIndices[1]+indiceCursor,
+		rectIndices[2]+indiceCursor,
+		rectIndices[3]+indiceCursor,
+		rectIndices[4]+indiceCursor,
+		rectIndices[5]+indiceCursor,
+	)
+
+	return vertices, indices
+}
+
+// Add adds DrawImage commands to the DrawList, images from multiple
+// atlases can be added but they will break the previous batch bound to
+// a different atlas, requiring an additional draw call internally.
+// So, it is better to have the maximum of consecutive DrawCommand images
+// sharing the same atlas.
+func (dl *drawList) Add(commands ...*drawCommand) {
+	if len(commands) == 0 {
+		return
+	}
+
+	var batch *drawRange
+
+	if len(dl.ranges) > 0 {
+		batch = &dl.ranges[len(dl.ranges)-1]
+	} else {
+		dl.ranges = append(dl.ranges, drawRange{
+			atlas: commands[0].Image.atlas,
+		})
+		batch = &dl.ranges[0]
+	}
+	// Add vertices and indices
+	opts := &rectOpts{}
+	for _, cmd := range commands {
+		if cmd.Image.atlas != batch.atlas {
+			dl.ranges = append(dl.ranges, drawRange{
+				atlas: cmd.Image.atlas,
+			})
+			batch = &dl.ranges[len(dl.ranges)-1]
+		}
+
+		// Dst attributes
+		bounds := cmd.Image.node.Region()
+		opts.Dsts[0] = pt(cmd.GeoM.Apply(0, 0))
+		opts.Dsts[1] = pt(cmd.GeoM.Apply(
+			float64(bounds.Dx()), 0,
+		))
+		opts.Dsts[2] = pt(cmd.GeoM.Apply(
+			0, float64(bounds.Dy()),
+		))
+		opts.Dsts[3] = pt(cmd.GeoM.Apply(
+			float64(bounds.Dx()), float64(bounds.Dy()),
+		))
+
+		// Color and source attributes
+		opts.R = cmd.ColorScale.R()
+		opts.G = cmd.ColorScale.G()
+		opts.B = cmd.ColorScale.B()
+		opts.A = cmd.ColorScale.A()
+		opts.SrcX0 = float32(bounds.Min.X)
+		opts.SrcY0 = float32(bounds.Min.Y)
+		opts.SrcX1 = float32(bounds.Max.X)
+		opts.SrcY1 = float32(bounds.Max.Y)
+
+		dl.vx, dl.ix = appendRectVerticesIndices(
+			dl.vx, dl.ix, batch.end, opts,
+		)
+
+		batch.end++
+	}
+}
+
+// DrawOptions are additional options that will be applied to
+// all draw commands from the draw list when calling Flush().
+type drawOptions struct {
+	ColorScaleMode ebiten.ColorScaleMode
+	Blend          ebiten.Blend
+	Filter         ebiten.Filter
+	Address        ebiten.Address
+	AntiAlias      bool
+}
+
+// Flush executes all the draw commands as the smallest possible
+// amount of draw calls, and then clears the list for next uses.
+func (dl *drawList) Flush(dst *ebiten.Image, opts *drawOptions) {
+	var topts *ebiten.DrawTrianglesOptions
+	if opts != nil {
+		topts = &ebiten.DrawTrianglesOptions{
+			ColorScaleMode: opts.ColorScaleMode,
+			Blend:          opts.Blend,
+			Filter:         opts.Filter,
+			Address:        opts.Address,
+			AntiAlias:      opts.AntiAlias,
+		}
+	}
+	index := 0
+	for _, r := range dl.ranges {
+		dst.DrawTriangles(
+			dl.vx[index*4:(index+r.end)*4],
+			dl.ix[index*6:(index+r.end)*6],
+			r.atlas.image,
+			topts,
+		)
+		index += r.end
+	}
+	// Clear buffers
+	dl.ranges = dl.ranges[:0]
+	dl.vx = dl.vx[:0]
+	dl.ix = dl.ix[:0]
+}

text/v2/glyph.go

@@ -18,7 +18,6 @@ import (
 	"math"
 	"sync"
 
-	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/internal/hook"
 )
 
@@ -38,17 +37,18 @@ func init() {
 }
 
 type glyphImageCacheEntry struct {
-	image *ebiten.Image
+	image *glyphImage
 	atime int64
 }
 
 type glyphImageCache[Key comparable] struct {
+	atlas *glyphAtlas
 	cache map[Key]*glyphImageCacheEntry
 	atime int64
 	m     sync.Mutex
 }
 
-func (g *glyphImageCache[Key]) getOrCreate(face Face, key Key, create func() *ebiten.Image) *ebiten.Image {
+func (g *glyphImageCache[Key]) getOrCreate(face Face, key Key, create func(a *glyphAtlas) *glyphImage) *glyphImage {
 	g.m.Lock()
 	defer g.m.Unlock()
 
@@ -61,10 +61,11 @@ func (g *glyphImageCache[Key]) getOrCreate(face Face, key Key, create func() *eb
 	}
 
 	if g.cache == nil {
+		g.atlas = newGlyphAtlas()
 		g.cache = map[Key]*glyphImageCacheEntry{}
 	}
 
-	img := create()
+	img := create(g.atlas)
 	e = &glyphImageCacheEntry{
 		image: img,
 	}
@@ -91,6 +92,7 @@ func (g *glyphImageCache[Key]) getOrCreate(face Face, key Key, create func() *eb
 					continue
 				}
 				delete(g.cache, key)
+				g.atlas.Free(e.image)
 			}
 		}
 	}

text/v2/gotext.go

@@ -310,11 +310,16 @@ func (g *GoTextFace) appendGlyphsForLine(glyphs []Glyph, line string, indexOffse
 		}))
 		// Append a glyph even if img is nil.
 		// This is necessary to return index information for control characters.
+		var ebitenImage *ebiten.Image
+		if img != nil {
+			ebitenImage = img.Image()
+		}
 		glyphs = append(glyphs, Glyph{
+			img:               img,
 			StartIndexInBytes: indexOffset + glyph.startIndex,
 			EndIndexInBytes:   indexOffset + glyph.endIndex,
 			GID:               uint32(glyph.shapingGlyph.GlyphID),
-			Image:             img,
+			Image:             ebitenImage,
 			X:                 float64(imgX),
 			Y:                 float64(imgY),
 		})
@@ -327,7 +332,7 @@ func (g *GoTextFace) appendGlyphsForLine(glyphs []Glyph, line string, indexOffse
 	return glyphs
 }
 
-func (g *GoTextFace) glyphImage(glyph glyph, origin fixed.Point26_6) (*ebiten.Image, int, int) {
+func (g *GoTextFace) glyphImage(glyph glyph, origin fixed.Point26_6) (*glyphImage, int, int) {
 	if g.direction().isHorizontal() {
 		origin.X = adjustGranularity(origin.X, g)
 		origin.Y &^= ((1 << 6) - 1)
@@ -347,8 +352,8 @@ func (g *GoTextFace) glyphImage(glyph glyph, origin fixed.Point26_6) (*ebiten.Im
 		yoffset:    subpixelOffset.Y,
 		variations: g.ensureVariationsString(),
 	}
-	img := g.Source.getOrCreateGlyphImage(g, key, func() *ebiten.Image {
-		return segmentsToImage(glyph.scaledSegments, subpixelOffset, b)
+	img := g.Source.getOrCreateGlyphImage(g, key, func(a *glyphAtlas) *glyphImage {
+		return segmentsToImage(a, glyph.scaledSegments, subpixelOffset, b)
 	})
 
 	imgX := (origin.X + b.Min.X).Floor()

text/v2/gotextfacesource.go

@@ -26,8 +26,6 @@ import (
 	"github.com/go-text/typesetting/opentype/loader"
 	"github.com/go-text/typesetting/shaping"
 	"golang.org/x/image/math/fixed"
-
-	"github.com/hajimehoshi/ebiten/v2"
 )
 
 type goTextOutputCacheKey struct {
@@ -282,7 +280,7 @@ func (g *GoTextFaceSource) scale(size float64) float64 {
 	return size / float64(g.f.Upem())
 }
 
-func (g *GoTextFaceSource) getOrCreateGlyphImage(goTextFace *GoTextFace, key goTextGlyphImageCacheKey, create func() *ebiten.Image) *ebiten.Image {
+func (g *GoTextFaceSource) getOrCreateGlyphImage(goTextFace *GoTextFace, key goTextGlyphImageCacheKey, create func(a *glyphAtlas) *glyphImage) *glyphImage {
 	if g.glyphImageCache == nil {
 		g.glyphImageCache = map[float64]*glyphImageCache[goTextGlyphImageCacheKey]{}
 	}

text/v2/gotextseg.go

@@ -19,11 +19,11 @@ import (
 	"image/draw"
 	"math"
 
-	"github.com/go-text/typesetting/opentype/api"
-	"golang.org/x/image/math/fixed"
 	gvector "golang.org/x/image/vector"
 
-	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/go-text/typesetting/opentype/api"
+	"golang.org/x/image/math/fixed"
+
 	"github.com/hajimehoshi/ebiten/v2/vector"
 )
 
@@ -75,7 +75,7 @@ func segmentsToBounds(segs []api.Segment) fixed.Rectangle26_6 {
 	}
 }
 
-func segmentsToImage(segs []api.Segment, subpixelOffset fixed.Point26_6, glyphBounds fixed.Rectangle26_6) *ebiten.Image {
+func segmentsToImage(a *glyphAtlas, segs []api.Segment, subpixelOffset fixed.Point26_6, glyphBounds fixed.Rectangle26_6) *glyphImage {
 	if len(segs) == 0 {
 		return nil
 	}
@@ -122,7 +122,10 @@ func segmentsToImage(segs []api.Segment, subpixelOffset fixed.Point26_6, glyphBo
 
 	dst := image.NewRGBA(image.Rect(0, 0, w, h))
 	rast.Draw(dst, dst.Bounds(), image.Opaque, image.Point{})
-	return ebiten.NewImageFromImage(dst)
+	img := a.NewImage(w, h)
+	img.Image().WritePixels(dst.Pix)
+
+	return img
 }
 
 func appendVectorPathFromSegments(path *vector.Path, segs []api.Segment, x, y float32) {

text/v2/gox.go

@@ -21,7 +21,6 @@ import (
 	"golang.org/x/image/font"
 	"golang.org/x/image/math/fixed"
 
-	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/vector"
 )
 
@@ -119,9 +118,10 @@ func (s *GoXFace) appendGlyphsForLine(glyphs []Glyph, line string, indexOffset i
 		// Append a glyph even if img is nil.
 		// This is necessary to return index information for control characters.
 		glyphs = append(glyphs, Glyph{
+			img:               img,
 			StartIndexInBytes: indexOffset + i,
 			EndIndexInBytes:   indexOffset + i + size,
-			Image:             img,
+			Image:             img.Image(),
 			X:                 float64(imgX),
 			Y:                 float64(imgY),
 		})
@@ -132,7 +132,7 @@ func (s *GoXFace) appendGlyphsForLine(glyphs []Glyph, line string, indexOffset i
 	return glyphs
 }
 
-func (s *GoXFace) glyphImage(r rune, origin fixed.Point26_6) (*ebiten.Image, int, int, fixed.Int26_6) {
+func (s *GoXFace) glyphImage(r rune, origin fixed.Point26_6) (*glyphImage, int, int, fixed.Int26_6) {
 	// Assume that GoXFace's direction is always horizontal.
 	origin.X = adjustGranularity(origin.X, s)
 	origin.Y &^= ((1 << 6) - 1)
@@ -146,15 +146,15 @@ func (s *GoXFace) glyphImage(r rune, origin fixed.Point26_6) (*ebiten.Image, int
 		rune:    r,
 		xoffset: subpixelOffset.X,
 	}
-	img := s.glyphImageCache.getOrCreate(s, key, func() *ebiten.Image {
-		return s.glyphImageImpl(r, subpixelOffset, b)
+	img := s.glyphImageCache.getOrCreate(s, key, func(a *glyphAtlas) *glyphImage {
+		return s.glyphImageImpl(a, r, subpixelOffset, b)
 	})
 	imgX := (origin.X + b.Min.X).Floor()
 	imgY := (origin.Y + b.Min.Y).Floor()
 	return img, imgX, imgY, a
 }
 
-func (s *GoXFace) glyphImageImpl(r rune, subpixelOffset fixed.Point26_6, glyphBounds fixed.Rectangle26_6) *ebiten.Image {
+func (s *GoXFace) glyphImageImpl(a *glyphAtlas, r rune, subpixelOffset fixed.Point26_6, glyphBounds fixed.Rectangle26_6) *glyphImage {
 	w, h := (glyphBounds.Max.X - glyphBounds.Min.X).Ceil(), (glyphBounds.Max.Y - glyphBounds.Min.Y).Ceil()
 	if w == 0 || h == 0 {
 		return nil
@@ -178,7 +178,10 @@ func (s *GoXFace) glyphImageImpl(r rune, subpixelOffset fixed.Point26_6, glyphBo
 	}
 	d.DrawString(string(r))
 
-	return ebiten.NewImageFromImage(rgba)
+	img := a.NewImage(w, h)
+	img.Image().WritePixels(rgba.Pix)
+
+	return img
 }
 
 // direction implements Face.

text/v2/layout.go

@@ -111,15 +111,24 @@ func Draw(dst *ebiten.Image, text string, face Face, options *DrawOptions) {
 
 	geoM := drawOp.GeoM
 
+	dl := &drawList{}
+	dc := &drawCommand{}
 	for _, g := range AppendGlyphs(nil, text, face, &layoutOp) {
 		if g.Image == nil {
 			continue
 		}
-		drawOp.GeoM.Reset()
-		drawOp.GeoM.Translate(g.X, g.Y)
-		drawOp.GeoM.Concat(geoM)
-		dst.DrawImage(g.Image, &drawOp)
+		dc.GeoM.Reset()
+		dc.GeoM.Translate(g.X, g.Y)
+		dc.GeoM.Concat(geoM)
+		dc.ColorScale = drawOp.ColorScale
+		dc.Image = g.img
+		dl.Add(dc)
 	}
+	dl.Flush(dst, &drawOptions{
+		Blend:          drawOp.Blend,
+		Filter:         drawOp.Filter,
+		ColorScaleMode: ebiten.ColorScaleModePremultipliedAlpha,
+	})
 }
 
 // AppendGlyphs appends glyphs to the given slice and returns a slice.

text/v2/text.go

@@ -115,6 +115,11 @@ func adjustGranularity(x fixed.Int26_6, face Face) fixed.Int26_6 {
 
 // Glyph represents one glyph to render.
 type Glyph struct {
+	// Image is a rasterized glyph image.
+	// Image is a grayscale image i.e. RGBA values are the same.
+	// Image should be used as a render source and should not be modified.
+	img *glyphImage
+
 	// StartIndexInBytes is the start index in bytes for the given string at AppendGlyphs.
 	StartIndexInBytes int
 
@@ -126,7 +131,10 @@ type Glyph struct {
 
 	// Image is a rasterized glyph image.
 	// Image is a grayscale image i.e. RGBA values are the same.
-	// Image should be used as a render source and should not be modified.
+	//
+	// Image should be used as a render source and must not be modified.
+	//
+	// Image can be nil.
 	Image *ebiten.Image
 
 	// X is the X position to render this glyph.

text/v2/text_test.go

@@ -15,6 +15,7 @@
 package text_test
 
 import (
+	"bytes"
 	"image"
 	"image/color"
 	"regexp"
@@ -23,6 +24,7 @@ import (
 
 	"github.com/hajimehoshi/bitmapfont/v3"
 	"golang.org/x/image/font"
+	"golang.org/x/image/font/gofont/goregular"
 	"golang.org/x/image/math/fixed"
 
 	"github.com/hajimehoshi/ebiten/v2"
@@ -371,3 +373,23 @@ func TestDrawOptionsNotModified(t *testing.T) {
 		t.Errorf("got: %v, want: %v", got, want)
 	}
 }
+
+func BenchmarkDrawText(b *testing.B) {
+	var txt string
+	for i := 0; i < 32; i++ {
+		txt += "The quick brown fox jumps over the lazy dog.\n"
+	}
+	screen := ebiten.NewImage(16, 16)
+	source, err := text.NewGoTextFaceSource(bytes.NewReader(goregular.TTF))
+	if err != nil {
+		b.Fatal(err)
+	}
+	f := &text.GoTextFace{
+		Source: source,
+		Size:   10,
+	}
+	op := &text.DrawOptions{}
+	for i := 0; i < b.N; i++ {
+		text.Draw(screen, txt, f, op)
+	}
+}