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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_HDR_METADATA_HELPER_WIN_H_
#define UI_GL_HDR_METADATA_HELPER_WIN_H_
#include <d3d11_1.h>
#include <dxgi1_6.h>
#include <wrl/client.h>
#include <optional>
#include <unordered_map>
#include "ui/gfx/hdr_metadata.h"
#include "ui/gl/gl_export.h"
#include "ui/gl/gpu_switching_observer.h"
namespace gl {
class GL_EXPORT HDRMetadataHelperWin : ui::GpuSwitchingObserver {
public:
explicit HDRMetadataHelperWin(
Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device);
HDRMetadataHelperWin(const HDRMetadataHelperWin&) = delete;
HDRMetadataHelperWin& operator=(const HDRMetadataHelperWin&) = delete;
~HDRMetadataHelperWin() override;
// Return the metadata of the brightest monitor, if available. Must call
// UpdateDisplayMetadata first.
std::optional<DXGI_HDR_METADATA_HDR10> GetDisplayMetadata();
// Return the metadata of a given window's monitor, if available. Must call
// UpdateDisplayMetadata first.
std::optional<DXGI_HDR_METADATA_HDR10> GetDisplayMetadata(HWND window);
// Query the display metadata from all monitors. In the event of monitor
// hot plugging, the metadata should be updated again.
void UpdateDisplayMetadata();
// Convert |hdr_metadata| to DXGI's metadata format.
static DXGI_HDR_METADATA_HDR10 HDRMetadataToDXGI(
const gfx::HDRMetadata& hdr_metadata);
// Convert |desc1| to DXGI's metadata format.
static DXGI_HDR_METADATA_HDR10 OutputDESC1ToDXGI(
const DXGI_OUTPUT_DESC1& desc1);
// Implements GpuSwitchingObserver
void OnDisplayAdded() override;
void OnDisplayRemoved() override;
private:
Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device_;
HMONITOR brightest_monitor_ = nullptr;
std::unordered_map<HMONITOR, DXGI_HDR_METADATA_HDR10> hdr_metadatas_;
};
} // namespace gl
#endif // UI_GL_HDR_METADATA_HELPER_WIN_H_
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