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This is part of a larger effort to expose the difference between GrDirectContext, which runs on the GPU thread and can directly perform operations like uploading textures, and GrRecordingContext, which can only queue up work to be delivered to the GrDirectContext later.
40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/shell/platform/darwin/ios/ios_context_software.h"
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namespace flutter {
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IOSContextSoftware::IOSContextSoftware() = default;
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// |IOSContext|
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IOSContextSoftware::~IOSContextSoftware() = default;
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// |IOSContext|
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sk_sp<GrDirectContext> IOSContextSoftware::CreateResourceContext() {
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return nullptr;
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}
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// |IOSContext|
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std::unique_ptr<GLContextResult> IOSContextSoftware::MakeCurrent() {
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// This only makes sense for context that need to be bound to a specific thread.
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return std::make_unique<GLContextDefaultResult>(false);
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}
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// |IOSContext|
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std::unique_ptr<Texture> IOSContextSoftware::CreateExternalTexture(
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int64_t texture_id,
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fml::scoped_nsobject<NSObject<FlutterTexture>> texture) {
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// Don't use FML for logging as it will contain engine specific details. This is a user facing
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// message.
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NSLog(@"Flutter: Attempted to composite external texture sources using the software backend. "
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@"This backend is only used on simulators. This feature is only available on actual "
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@"devices where OpenGL or Metal is used for rendering.");
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// Not supported in this backend.
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return nullptr;
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}
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} // namespace flutter
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