ilaandClaude Opus 4.8
f58728cddd
go mod vendor pins onnxruntime_go v1.12.1, Gio and the rest into v2/vendor so go run/build work without hitting proxy.golang.org (blocked/slow in China). Verified: CGO_ENABLED=1 go build -mod=vendor ./internal/spike and GOOS=windows go build -mod=vendor ./internal/ui both pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package app
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import (
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"errors"
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"syscall/js"
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"gioui.org/gpu"
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"gioui.org/internal/gl"
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)
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type glContext struct {
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ctx js.Value
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cnv js.Value
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w *window
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}
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func newContext(w *window) (*glContext, error) {
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args := map[string]interface{}{
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// Enable low latency rendering.
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// See https://developers.google.com/web/updates/2019/05/desynchronized.
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"desynchronized": true,
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"preserveDrawingBuffer": true,
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}
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ctx := w.cnv.Call("getContext", "webgl2", args)
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if ctx.IsNull() {
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ctx = w.cnv.Call("getContext", "webgl", args)
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}
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if ctx.IsNull() {
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return nil, errors.New("app: webgl is not supported")
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}
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c := &glContext{
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ctx: ctx,
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cnv: w.cnv,
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w: w,
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}
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return c, nil
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}
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func (c *glContext) RenderTarget() (gpu.RenderTarget, error) {
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if c.w.contextStatus != contextStatusOkay {
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return nil, gpu.ErrDeviceLost
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}
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return gpu.OpenGLRenderTarget{}, nil
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}
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func (c *glContext) API() gpu.API {
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return gpu.OpenGL{Context: gl.Context(c.ctx)}
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}
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func (c *glContext) Release() {
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}
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func (c *glContext) Present() error {
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return nil
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}
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func (c *glContext) Lock() error {
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return nil
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}
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func (c *glContext) Unlock() {}
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func (c *glContext) Refresh() error {
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switch c.w.contextStatus {
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case contextStatusLost:
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return errOutOfDate
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case contextStatusRestored:
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c.w.contextStatus = contextStatusOkay
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return gpu.ErrDeviceLost
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default:
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return nil
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}
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}
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func (w *window) NewContext() (context, error) {
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return newContext(w)
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}
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