mirror of
https://git.sr.ht/~eliasnaur/gio
synced 2026-07-01 15:45:38 +00:00
Elias Naur
2c7aba9e7c
The convert program is only used by the shaders from package gpu, and we're about to make the backend package imported by the program internal to package gpu. Move the converter below package gpu. Signed-off-by: Elias Naur <mail@eliasnaur.com>
47 lines
1003 B
Go
47 lines
1003 B
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package main
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os/exec"
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"path/filepath"
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)
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// GLSLValidator is OpenGL reference compiler.
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type GLSLValidator struct {
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Bin string
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WorkDir WorkDir
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}
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func NewGLSLValidator() *GLSLValidator { return &GLSLValidator{Bin: "glslangValidator"} }
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// ConvertCompute converts glsl compute shader to spirv.
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func (glsl *GLSLValidator) ConvertCompute(path string, input []byte) ([]byte, error) {
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base := glsl.WorkDir.Path(filepath.Base(path))
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pathout := base + ".out"
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cmd := exec.Command(glsl.Bin,
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"-G100", // OpenGL ES 3.1.
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"-w", // Suppress warnings.
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"-S", "comp",
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"-o", pathout,
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path,
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)
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cmd.Stdin = bytes.NewBuffer(input)
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out, err := cmd.Output()
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if err != nil {
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return nil, fmt.Errorf("%s\nfailed to run %v: %w", out, cmd.Args, err)
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}
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compiled, err := ioutil.ReadFile(pathout)
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if err != nil {
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return nil, fmt.Errorf("unable to read output %q: %w", pathout, err)
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}
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return compiled, nil
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}
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