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// Copyright (c) 2012 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 UI_GFX_SWAP_RESULT_H_
#define UI_GFX_SWAP_RESULT_H_
#include <memory>
#include "base/time/time.h"
#include "ui/gfx/gfx_export.h"
namespace gfx {
struct CALayerParams;
class GpuFence;
enum class SwapResult {
SWAP_ACK,
SWAP_FAILED,
SWAP_NAK_RECREATE_BUFFERS,
SWAP_RESULT_LAST = SWAP_NAK_RECREATE_BUFFERS,
};
struct SwapTimings {
// When the GPU service first started processing the SwapBuffers request.
base::TimeTicks swap_start;
// On most platforms, this is when the GPU service finished processing the
// SwapBuffers request. On ChromeOS, this corresponds to the present time.
// TODO(brianderson): Differentiate the concepts without introducing
// dicontinuities in associated UMA data.
base::TimeTicks swap_end;
// When Display Compositor thread scheduled work to GPU Thread. For GLRenderer
// it's when InProcessCommandBuffer::Flush() happens, for SkiaRenderer it's
// PostTask time for FinishPaintRenderPass or SwapBuffers whichever comes
// first.
base::TimeTicks viz_scheduled_draw;
// When GPU thread started draw submitted by Display Compositor thread. For
// GLRenderer it's InProcessCommandBuffer::FlushOnGpuThread, for SkiaRenderer
// it's FinishPaintRenderPass/SwapBuffers.
base::TimeTicks gpu_started_draw;
bool is_null() const { return swap_start.is_null() && swap_end.is_null(); }
};
// Sent by ImageTransportSurfaces to their clients in response to a SwapBuffers.
struct SwapResponse {
// The swap's sequence id which helps clients determine which SwapBuffers
// this corresponds to. We may receive responses out of order on platforms
// that allow multiple swaps pending if a failed swap returns immediately
// while a successful swap is still outstanding.
uint64_t swap_id;
// Indicates whether the swap succeeded or not.
// TODO(https://crbug.com/894929): It may be more reasonable to add
// a full SwapCompletionResult as a member.
SwapResult result;
// Timing information about the given swap.
SwapTimings timings;
};
// Sent by GLImages to their GLImage::SwapCompletionCallbacks.
struct GFX_EXPORT SwapCompletionResult {
explicit SwapCompletionResult(gfx::SwapResult swap_result);
SwapCompletionResult(gfx::SwapResult swap_result,
std::unique_ptr<gfx::GpuFence> gpu_fence);
SwapCompletionResult(gfx::SwapResult swap_result,
std::unique_ptr<gfx::CALayerParams> ca_layer_params);
SwapCompletionResult(SwapCompletionResult&& other);
~SwapCompletionResult();
SwapCompletionResult(const SwapCompletionResult& other) = delete;
SwapCompletionResult& operator=(const SwapCompletionResult other) = delete;
gfx::SwapResult swap_result = SwapResult::SWAP_FAILED;
std::unique_ptr<GpuFence> gpu_fence;
std::unique_ptr<CALayerParams> ca_layer_params;
};
} // namespace gfx
#endif // UI_GFX_SWAP_RESULT_H_
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