blob: 51ed40f39a7e804b24a5aa9db2e7f3572b196cb7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
// 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.
#ifndef UI_OZONE_PLATFORM_DRM_GPU_CRTC_CONTROLLER_H_
#define UI_OZONE_PLATFORM_DRM_GPU_CRTC_CONTROLLER_H_
#include <stddef.h>
#include <stdint.h>
#include <xf86drmMode.h>
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "ui/ozone/ozone_export.h"
#include "ui/ozone/platform/drm/common/scoped_drm_types.h"
#include "ui/ozone/platform/drm/gpu/hardware_display_plane_manager.h"
#include "ui/ozone/platform/drm/gpu/overlay_plane.h"
namespace ui {
class DrmDevice;
class PageFlipRequest;
// Wrapper around a CRTC.
//
// One CRTC can be paired up with one or more connectors. The simplest
// configuration represents one CRTC driving one monitor, while pairing up a
// CRTC with multiple connectors results in hardware mirroring.
class OZONE_EXPORT CrtcController
: public base::SupportsWeakPtr<CrtcController> {
public:
CrtcController(const scoped_refptr<DrmDevice>& drm,
uint32_t crtc,
uint32_t connector);
~CrtcController();
drmModeModeInfo mode() const { return mode_; }
uint32_t crtc() const { return crtc_; }
uint32_t connector() const { return connector_; }
const scoped_refptr<DrmDevice>& drm() const { return drm_; }
bool is_disabled() const { return is_disabled_; }
uint64_t time_of_last_flip() const { return time_of_last_flip_; }
// Perform the initial modesetting operation using |plane| as the buffer for
// the primary plane. The CRTC configuration is specified by |mode|.
bool Modeset(const OverlayPlane& plane, drmModeModeInfo mode);
// Disables the controller.
bool Disable();
// Schedule a page flip event and present the overlays in |planes|.
bool SchedulePageFlip(HardwareDisplayPlaneList* plane_list,
const OverlayPlaneList& planes,
bool test_only,
scoped_refptr<PageFlipRequest> page_flip_request);
// Called if the page flip for this CRTC fails after being scheduled.
void PageFlipFailed();
// Called when the page flip event occurred. The event is provided by the
// kernel when a VBlank event finished. This allows the controller to
// update internal state and propagate the update to the surface.
// The tuple (seconds, useconds) represents the event timestamp. |seconds|
// represents the number of seconds while |useconds| represents the
// microseconds (< 1 second) in the timestamp.
void OnPageFlipEvent(unsigned int frame,
unsigned int seconds,
unsigned int useconds);
bool SetCursor(const scoped_refptr<ScanoutBuffer>& buffer);
bool MoveCursor(const gfx::Point& location);
private:
bool ResetCursor();
void SignalPageFlipRequest();
scoped_refptr<DrmDevice> drm_;
HardwareDisplayPlaneManager* overlay_plane_manager_; // Not owned.
// Buffers need to be declared first so that they are destroyed last. Needed
// since the controllers may reference the buffers.
OverlayPlaneList current_planes_;
OverlayPlaneList pending_planes_;
scoped_refptr<ScanoutBuffer> cursor_buffer_;
scoped_refptr<PageFlipRequest> page_flip_request_;
uint32_t crtc_;
// TODO(dnicoara) Add support for hardware mirroring (multiple connectors).
uint32_t connector_;
drmModeModeInfo mode_;
// Keeps track of the CRTC state. If a surface has been bound, then the value
// is set to false. Otherwise it is true.
bool is_disabled_;
// The time of the last page flip event as reported by the kernel callback.
uint64_t time_of_last_flip_;
DISALLOW_COPY_AND_ASSIGN(CrtcController);
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_CRTC_CONTROLLER_H_
|
