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// SPDX-License-Identifier: Unlicense OR MIT
//go:build !novulkan
// +build !novulkan
package app
import (
"unsafe"
"gioui.org/gpu"
"gioui.org/internal/vk"
)
type wlVkContext struct {
win *window
inst vk.Instance
surf vk.Surface
ctx *vkContext
}
func init() {
newAndroidVulkanContext = func(w *window) (context, error) {
inst, err := vk.CreateInstance("VK_KHR_surface", "VK_KHR_android_surface")
if err != nil {
return nil, err
}
window, _, _ := w.nativeWindow()
surf, err := vk.CreateAndroidSurface(inst, unsafe.Pointer(window))
if err != nil {
vk.DestroyInstance(inst)
return nil, err
}
ctx, err := newVulkanContext(inst, surf)
if err != nil {
vk.DestroySurface(inst, surf)
vk.DestroyInstance(inst)
return nil, err
}
c := &wlVkContext{
win: w,
inst: inst,
surf: surf,
ctx: ctx,
}
return c, nil
}
}
func (c *wlVkContext) RenderTarget() (gpu.RenderTarget, error) {
return c.ctx.RenderTarget()
}
func (c *wlVkContext) API() gpu.API {
return c.ctx.api()
}
func (c *wlVkContext) Release() {
c.ctx.release()
if c.surf != 0 {
vk.DestroySurface(c.inst, c.surf)
}
vk.DestroyInstance(c.inst)
*c = wlVkContext{}
}
func (c *wlVkContext) Present() error {
return c.ctx.present()
}
func (c *wlVkContext) Lock() error {
return nil
}
func (c *wlVkContext) Unlock() {}
func (c *wlVkContext) Refresh() error {
win, w, h := c.win.nativeWindow()
if c.surf != 0 {
c.ctx.destroySwapchain()
vk.DestroySurface(c.inst, c.surf)
c.surf = 0
}
surf, err := vk.CreateAndroidSurface(c.inst, unsafe.Pointer(win))
if err != nil {
return err
}
c.surf = surf
return c.ctx.refresh(c.surf, w, h)
}
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