MetalBinding: query the MTLDevice instead of creating it.
With adapters the Metal backend will be in charge of creating the
MTLDevice so we remove this responsibility from the bindings.
BUG=dawn:29
Change-Id: Id7b9e5f6249963e2b87a91242a18119ba8d11c13
Reviewed-on: https://dawn-review.googlesource.com/c/3661
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/dawn_native/metal/DeviceMTL.h b/src/dawn_native/metal/DeviceMTL.h
index fa96d4e..434ffa8 100644
--- a/src/dawn_native/metal/DeviceMTL.h
+++ b/src/dawn_native/metal/DeviceMTL.h
@@ -34,7 +34,7 @@
class Device : public DeviceBase {
public:
- Device(id<MTLDevice> mtlDevice);
+ Device();
~Device();
CommandBufferBase* CreateCommandBuffer(CommandBufferBuilder* builder) override;
diff --git a/src/dawn_native/metal/DeviceMTL.mm b/src/dawn_native/metal/DeviceMTL.mm
index 1e54f5f..1c139b1 100644
--- a/src/dawn_native/metal/DeviceMTL.mm
+++ b/src/dawn_native/metal/DeviceMTL.mm
@@ -122,8 +122,13 @@
}
} // anonymous namespace
- dawnDevice CreateDevice(id<MTLDevice> metalDevice) {
- return reinterpret_cast<dawnDevice>(new Device(metalDevice));
+ dawnDevice CreateDevice() {
+ return reinterpret_cast<dawnDevice>(new Device());
+ }
+
+ id<MTLDevice> GetMetalDevice(dawnDevice cDevice) {
+ Device* device = reinterpret_cast<Device*>(cDevice);
+ return device->GetMTLDevice();
}
BackendConnection* Connect(InstanceBase* instance) {
@@ -132,8 +137,8 @@
// Device
- Device::Device(id<MTLDevice> mtlDevice)
- : mMtlDevice(mtlDevice),
+ Device::Device()
+ : mMtlDevice(MTLCreateSystemDefaultDevice()),
mMapTracker(new MapRequestTracker(this)),
mResourceUploader(new ResourceUploader(this)) {
[mMtlDevice retain];
diff --git a/src/include/dawn_native/MetalBackend.h b/src/include/dawn_native/MetalBackend.h
index 0808957..aad945a 100644
--- a/src/include/dawn_native/MetalBackend.h
+++ b/src/include/dawn_native/MetalBackend.h
@@ -23,7 +23,8 @@
#import <QuartzCore/CAMetalLayer.h>
namespace dawn_native { namespace metal {
- DAWN_NATIVE_EXPORT dawnDevice CreateDevice(id<MTLDevice> metalDevice);
+ DAWN_NATIVE_EXPORT dawnDevice CreateDevice();
+ DAWN_NATIVE_EXPORT id<MTLDevice> GetMetalDevice(dawnDevice device);
}} // namespace dawn_native::metal
#endif // DAWNNATIVE_METALBACKEND_H_
diff --git a/src/utils/MetalBinding.mm b/src/utils/MetalBinding.mm
index 0b41c14..55558ed 100644
--- a/src/utils/MetalBinding.mm
+++ b/src/utils/MetalBinding.mm
@@ -111,9 +111,11 @@
void SetupGLFWWindowHints() override {
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
}
+
dawnDevice CreateDevice() override {
- mMetalDevice = MTLCreateSystemDefaultDevice();
- return dawn_native::metal::CreateDevice(mMetalDevice);
+ dawnDevice device = dawn_native::metal::CreateDevice();
+ mMetalDevice = dawn_native::metal::GetMetalDevice(device);
+ return device;
}
uint64_t GetSwapChainImplementation() override {