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>
74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package headless
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import (
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"errors"
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"unsafe"
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"gioui.org/gpu"
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_ "gioui.org/internal/cocoainit"
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)
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/*
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#cgo CFLAGS: -Werror -Wno-deprecated-declarations -fmodules -fobjc-arc -x objective-c
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#cgo LDFLAGS: -framework CoreGraphics
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@import Metal;
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static CFTypeRef createDevice(void) {
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@autoreleasepool {
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id dev = MTLCreateSystemDefaultDevice();
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return CFBridgingRetain(dev);
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}
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}
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static CFTypeRef newCommandQueue(CFTypeRef devRef) {
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@autoreleasepool {
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id<MTLDevice> dev = (__bridge id<MTLDevice>)devRef;
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return CFBridgingRetain([dev newCommandQueue]);
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}
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}
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*/
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import "C"
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type mtlContext struct {
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dev C.CFTypeRef
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queue C.CFTypeRef
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}
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func init() {
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newContextPrimary = func() (context, error) {
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dev := C.createDevice()
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if dev == 0 {
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return nil, errors.New("headless: failed to create Metal device")
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}
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queue := C.newCommandQueue(dev)
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if queue == 0 {
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C.CFRelease(dev)
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return nil, errors.New("headless: failed to create MTLQueue")
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}
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return &mtlContext{dev: dev, queue: queue}, nil
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}
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}
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func (c *mtlContext) API() gpu.API {
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return gpu.Metal{
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Device: unsafe.Pointer(c.dev),
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Queue: unsafe.Pointer(c.queue),
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PixelFormat: int(C.MTLPixelFormatRGBA8Unorm_sRGB),
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}
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}
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func (c *mtlContext) MakeCurrent() error {
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return nil
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}
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func (c *mtlContext) ReleaseCurrent() {}
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func (d *mtlContext) Release() {
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C.CFRelease(d.dev)
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C.CFRelease(d.queue)
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*d = mtlContext{}
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}
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