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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/public/common/messaging/accelerated_static_bitmap_image_mojom_traits.h"
#include "components/viz/common/resources/shared_image_format_utils.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "ui/gfx/color_space.h"
namespace {
using Callback = base::OnceCallback<void(const gpu::SyncToken&)>;
// Implements mojom::ImageReleaseCallback.
// The passed in callback will be destroyed once the mojo pipe
// is destroyed or the callback is invoked via the Release interface
// call.
// It is required that desruction of the passed callback is enough to
// release the image. E.g. if the reference is bound to it.
class ReleaseCallbackImpl : public blink::mojom::ImageReleaseCallback {
public:
explicit ReleaseCallbackImpl(Callback callback)
: callback_(std::move(callback)) {}
void Release(const gpu::SyncToken& sync_token) override {
std::move(callback_).Run(sync_token);
}
private:
Callback callback_;
};
void Release(
mojo::PendingRemote<blink::mojom::ImageReleaseCallback> pending_remote,
const gpu::SyncToken& sync_token) {
mojo::Remote<blink::mojom::ImageReleaseCallback> remote(
std::move(pending_remote));
remote->Release(sync_token);
}
} // namespace
namespace mojo {
// static
mojo::PendingRemote<blink::mojom::ImageReleaseCallback> StructTraits<
blink::mojom::AcceleratedStaticBitmapImage::DataView,
blink::AcceleratedImageInfo>::release_callback(blink::AcceleratedImageInfo&
input) {
mojo::PendingRemote<blink::mojom::ImageReleaseCallback> callback;
MakeSelfOwnedReceiver(
std::make_unique<ReleaseCallbackImpl>(std::move(input.release_callback)),
callback.InitWithNewPipeAndPassReceiver());
return callback;
}
bool StructTraits<blink::mojom::AcceleratedStaticBitmapImage::DataView,
blink::AcceleratedImageInfo>::
Read(blink::mojom::AcceleratedStaticBitmapImage::DataView data,
blink::AcceleratedImageInfo* out) {
SkImageInfo image_info;
if (!data.ReadSharedImage(&out->shared_image) ||
!data.ReadSyncToken(&out->sync_token) ||
!data.ReadImageInfo(&image_info)) {
return false;
}
out->size = gfx::Size(image_info.width(), image_info.height());
out->format =
viz::SkColorTypeToSinglePlaneSharedImageFormat(image_info.colorType());
out->alpha_type = image_info.alphaType();
out->color_space = image_info.refColorSpace()
? gfx::ColorSpace(*image_info.refColorSpace())
: gfx::ColorSpace::CreateSRGB();
auto callback = data.TakeReleaseCallback<
mojo::PendingRemote<blink::mojom::ImageReleaseCallback>>();
if (!callback) {
return false;
}
out->release_callback = base::BindOnce(&Release, std::move(callback));
return true;
}
} // namespace mojo
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