forked from joejulian/gio
Elias Naur
8999747ad2
This change implements a Vulkan port for the two renderers, old and compute. Run with GIORENDERER=forcecompute to test the compute renderer. To shake out bugs faster, it is also made the default on systems that support it. To disable Vulkan and force the use of OpenGL, use the `novulkan` tag: $ go run -tags novulkan gioui.org/example/kitchen Don't forget to file an issue describing the issue that prompted the use of the tag. Signed-off-by: Elias Naur <mail@eliasnaur.com>
75 lines
1.3 KiB
Go
75 lines
1.3 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
|
|
|
|
//go:build (linux || freebsd) && !novulkan
|
|
// +build linux freebsd
|
|
// +build !novulkan
|
|
|
|
package headless
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"gioui.org/gpu"
|
|
"gioui.org/internal/vk"
|
|
)
|
|
|
|
type vkContext struct {
|
|
physDev vk.PhysicalDevice
|
|
inst vk.Instance
|
|
dev vk.Device
|
|
queueFam int
|
|
}
|
|
|
|
func init() {
|
|
newContextPrimary = newVulkanContext
|
|
}
|
|
|
|
func newVulkanContext() (context, error) {
|
|
inst, err := vk.CreateInstance()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
physDev, qFam, err := vk.ChoosePhysicalDevice(inst, 0)
|
|
if err != nil {
|
|
vk.DestroyInstance(inst)
|
|
return nil, err
|
|
}
|
|
dev, err := vk.CreateDeviceAndQueue(physDev, qFam)
|
|
if err != nil {
|
|
vk.DestroyInstance(inst)
|
|
return nil, err
|
|
}
|
|
ctx := &vkContext{
|
|
physDev: physDev,
|
|
inst: inst,
|
|
dev: dev,
|
|
queueFam: qFam,
|
|
}
|
|
return ctx, nil
|
|
}
|
|
|
|
func (c *vkContext) API() gpu.API {
|
|
return gpu.Vulkan{
|
|
PhysDevice: unsafe.Pointer(c.physDev),
|
|
Device: unsafe.Pointer(c.dev),
|
|
Format: int(vk.FORMAT_R8G8B8A8_SRGB),
|
|
QueueFamily: c.queueFam,
|
|
QueueIndex: 0,
|
|
}
|
|
}
|
|
|
|
func (c *vkContext) MakeCurrent() error {
|
|
return nil
|
|
}
|
|
|
|
func (c *vkContext) ReleaseCurrent() {
|
|
}
|
|
|
|
func (c *vkContext) Release() {
|
|
vk.DeviceWaitIdle(c.dev)
|
|
|
|
vk.DestroyDevice(c.dev)
|
|
vk.DestroyInstance(c.inst)
|
|
*c = vkContext{}
|
|
}
|