mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-21 22:02:23 +02:00
104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
// Copyright 2024 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build ignore
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// This is a program to generate precompiled Metal libraries.
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//
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// See https://developer.apple.com/documentation/metal/shader_libraries/building_a_shader_library_by_precompiling_source_files.
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package main
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import (
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"os"
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"os/exec"
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"path/filepath"
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"golang.org/x/sync/errgroup"
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"github.com/hajimehoshi/ebiten/v2/shaderprecomp"
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)
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func main() {
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if err := run(); err != nil {
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panic(err)
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}
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}
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func run() error {
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tmpdir, err := os.MkdirTemp("", "")
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if err != nil {
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return err
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}
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defer os.RemoveAll(tmpdir)
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srcs := shaderprecomp.AppendBuildinShaderSources(nil)
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defaultSrcBytes, err := os.ReadFile(filepath.Join("..", "defaultshader.go"))
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if err != nil {
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return err
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}
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defaultSrc, err := shaderprecomp.NewShaderSource(defaultSrcBytes)
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if err != nil {
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return err
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}
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srcs = append(srcs, defaultSrc)
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var wg errgroup.Group
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for _, src := range srcs {
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source := src
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wg.Go(func() error {
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return compile(source, tmpdir)
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})
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}
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if err := wg.Wait(); err != nil {
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return err
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}
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return nil
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}
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func compile(source *shaderprecomp.ShaderSource, tmpdir string) error {
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id := source.ID().String()
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metalFilePath := filepath.Join(tmpdir, id+".metal")
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f, err := os.Create(metalFilePath)
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if err != nil {
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return err
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}
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defer f.Close()
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if err := shaderprecomp.CompileToMSL(f, source); err != nil {
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return err
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}
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if err := f.Sync(); err != nil {
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return err
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}
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irFilePath := filepath.Join(tmpdir, id+".ir")
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cmd := exec.Command("xcrun", "-sdk", "macosx", "metal", "-o", irFilePath, "-c", metalFilePath)
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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return err
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}
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metallibFilePath := id + ".metallib"
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cmd = exec.Command("xcrun", "-sdk", "macosx", "metallib", "-o", metallibFilePath, irFilePath)
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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return err
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}
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return nil
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}
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