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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
module mojo;
import "components/view_manager/public/interfaces/gpu_capabilities.mojom";
import "ui/mojo/geometry/geometry.mojom";
struct CommandBufferState {
int32 num_entries;
int32 get_offset;
int32 put_offset;
int32 token;
int32 error; // TODO(piman): enum
int32 context_lost_reason; // TODO(piman): enum
uint32 generation;
};
interface CommandBufferSyncClient {
DidInitialize(bool success, GpuCapabilities capabilities);
DidMakeProgress(CommandBufferState state);
};
interface CommandBufferSyncPointClient {
DidInsertSyncPoint(uint32 sync_point);
};
interface CommandBufferLostContextObserver {
DidLoseContext(int32 context_lost_reason);
};
interface CommandBuffer {
// Initialize attempts to initialize the command buffer. Success or failure
// will be communicated via the CommandBufferSyncClient DidInitialize() call.
// If the context is lost after creation the LostContext method on the
// CommandBufferLostContextObserver's will be called then this pipe will be
// closed.
Initialize(CommandBufferSyncClient sync_client,
CommandBufferSyncPointClient sync_point_client,
CommandBufferLostContextObserver lost_observer,
handle<shared_buffer> shared_state);
SetGetBuffer(int32 buffer);
Flush(int32 put_offset);
MakeProgress(int32 last_get_offset);
RegisterTransferBuffer(
int32 id, handle<shared_buffer> transfer_buffer, uint32 size);
DestroyTransferBuffer(int32 id);
// InsertSyncPoint returns the sync point returned via DidInsertSyncPoint.
// If |retire| is true, the sync point is retired on insertion. Otherwise,
// explicitly call RetireSyncPoint to retire it.
InsertSyncPoint(bool retire);
RetireSyncPoint(uint32 sync_point);
Echo() => ();
CreateImage(int32 id,
handle memory_handle,
int32 type,
Size size,
int32 format,
int32 internal_format);
DestroyImage(int32 id);
};
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