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// Copyright 2017 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.
#ifndef GPU_COMMAND_BUFFER_SERVICE_DECODER_CLIENT_H_
#define GPU_COMMAND_BUFFER_SERVICE_DECODER_CLIENT_H_
#include <stdint.h>
#include <string>
#include "gpu/gpu_export.h"
#include "url/gurl.h"
namespace gpu {
struct SyncToken;
class GPU_EXPORT DecoderClient {
public:
virtual ~DecoderClient() = default;
// Prints a message (error/warning) to the console.
virtual void OnConsoleMessage(int32_t id, const std::string& message) = 0;
// Cache a newly linked shader.
virtual void CacheShader(const std::string& key,
const std::string& shader) = 0;
// Called when the decoder releases a fence sync. Allows the client to
// reschedule waiting decoders.
virtual void OnFenceSyncRelease(uint64_t release) = 0;
// Called when the decoder needs to wait on a sync token. If the wait is valid
// (fence sync is not released yet), the client must unschedule the command
// buffer and return true. The client is responsible for rescheduling the
// command buffer when the fence is released. If the wait is a noop (fence is
// already released) or invalid, the client must leave the command buffer
// scheduled, and return false.
virtual bool OnWaitSyncToken(const gpu::SyncToken&) = 0;
// Called when the decoder needs to be descheduled while waiting for a fence
// completion. The client is responsible for descheduling the command buffer
// before returning, and then calling PerformPollingWork periodically to test
// for the fence completion and possibly reschedule.
virtual void OnDescheduleUntilFinished() = 0;
// Called from PerformPollingWork when the decoder needs to be rescheduled
// because the fence completed.
virtual void OnRescheduleAfterFinished() = 0;
// Called when SwapBuffers, PostSubBufferCHROMIUM,
// SwapBuffersWithBoundsCHROMIUM or CommitOverlayPlanesCHROMIUM is called.
virtual void OnSwapBuffers(uint64_t swap_id, uint32_t flags) = 0;
// Notifies the client that the shared GrContext may have been used by this
// decoder and its GPU memory should be cleaned up.
virtual void ScheduleGrContextCleanup() = 0;
virtual void SetActiveURL(GURL url) {}
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_DECODER_CLIENT_H_