mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-27 12:18:55 +01:00
4818768965
`ShaderSourceID` was confusing as there was no guarantee the same ID is used for the same source if Ebitengine versions are different. `ShaderSource` should be kept as the built-in shader contents should not be exposed. Updates #2861 Closes #2999
124 lines
3.8 KiB
Go
124 lines
3.8 KiB
Go
// 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 (
|
|
"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()
|
|
|
|
if err := shaderprecomp.CompileToHLSL(vsf, psf, source); 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
|
|
}
|