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5fb759f6e7
Bug: dawn:810 Change-Id: I579e5c7cd610fc660b7480673a93cffdf725ef41 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93200 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Stephen White <senorblanco@chromium.org>
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn/native/opengl/BackendGL.h"
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#include <utility>
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#include "dawn/native/OpenGLBackend.h"
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#include "dawn/native/opengl/AdapterGL.h"
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namespace dawn::native::opengl {
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// Implementation of the OpenGL backend's BackendConnection
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Backend::Backend(InstanceBase* instance, wgpu::BackendType backendType)
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: BackendConnection(instance, backendType) {}
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std::vector<Ref<AdapterBase>> Backend::DiscoverDefaultAdapters() {
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// The OpenGL backend needs at least "getProcAddress" to discover an adapter.
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return {};
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}
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ResultOrError<std::vector<Ref<AdapterBase>>> Backend::DiscoverAdapters(
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const AdapterDiscoveryOptionsBase* optionsBase) {
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// TODO(cwallez@chromium.org): For now only create a single OpenGL adapter because don't
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// know how to handle MakeCurrent.
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DAWN_INVALID_IF(mCreatedAdapter, "The OpenGL backend can only create a single adapter.");
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ASSERT(static_cast<wgpu::BackendType>(optionsBase->backendType) == GetType());
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const AdapterDiscoveryOptions* options =
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static_cast<const AdapterDiscoveryOptions*>(optionsBase);
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DAWN_INVALID_IF(options->getProc == nullptr, "AdapterDiscoveryOptions::getProc must be set");
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Ref<Adapter> adapter = AcquireRef(
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new Adapter(GetInstance(), static_cast<wgpu::BackendType>(optionsBase->backendType)));
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DAWN_TRY(adapter->InitializeGLFunctions(options->getProc));
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DAWN_TRY(adapter->Initialize());
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mCreatedAdapter = true;
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std::vector<Ref<AdapterBase>> adapters{std::move(adapter)};
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return std::move(adapters);
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}
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BackendConnection* Connect(InstanceBase* instance, wgpu::BackendType backendType) {
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return new Backend(instance, backendType);
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}
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} // namespace dawn::native::opengl
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