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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_SF_HWCOMPOSER_H
#define ANDROID_SF_HWCOMPOSER_H
#include "HWC2.h"
#include <stdint.h>
#include <sys/types.h>
#include <ui/Fence.h>
#include <ui/GraphicTypes.h>
#include <utils/BitSet.h>
#include <utils/Condition.h>
#include <utils/Mutex.h>
#include <utils/StrongPointer.h>
#include <utils/Thread.h>
#include <utils/Timers.h>
#include <utils/Vector.h>
#include <memory>
#include <optional>
#include <set>
#include <vector>
#include "DisplayIdentification.h"
extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
const struct timespec *request,
struct timespec *remain);
struct framebuffer_device_t;
namespace HWC2 {
class Device;
class Display;
}
namespace android {
// ---------------------------------------------------------------------------
class DisplayDevice;
class Fence;
class FloatRect;
class GraphicBuffer;
class NativeHandle;
class Region;
class String8;
class TestableSurfaceFlinger;
struct CompositionInfo;
namespace Hwc2 {
class Composer;
} // namespace Hwc2
class HWComposer
{
public:
explicit HWComposer(std::unique_ptr<android::Hwc2::Composer> composer);
~HWComposer();
void registerCallback(HWC2::ComposerCallback* callback,
int32_t sequenceId);
bool getDisplayIdentificationData(hwc2_display_t hwcDisplayId, uint8_t* outPort,
DisplayIdentificationData* outData) const;
bool hasCapability(HWC2::Capability capability) const;
// Attempts to allocate a virtual display. If the virtual display is created
// on the HWC device, outId will contain its HWC ID.
status_t allocateVirtualDisplay(uint32_t width, uint32_t height,
ui::PixelFormat* format, int32_t* outId);
// Attempts to create a new layer on this display
HWC2::Layer* createLayer(int32_t displayId);
// Destroy a previously created layer
void destroyLayer(int32_t displayId, HWC2::Layer* layer);
// Asks the HAL what it can do
status_t prepare(DisplayDevice& display,
std::vector<CompositionInfo>& compositionData);
status_t setClientTarget(int32_t displayId, uint32_t slot,
const sp<Fence>& acquireFence,
const sp<GraphicBuffer>& target, ui::Dataspace dataspace);
// Present layers to the display and read releaseFences.
status_t presentAndGetReleaseFences(int32_t displayId);
// set power mode
status_t setPowerMode(int32_t displayId, int mode);
// set active config
status_t setActiveConfig(int32_t displayId, size_t configId);
// Sets a color transform to be applied to the result of composition
status_t setColorTransform(int32_t displayId, const mat4& transform);
// reset state when an external, non-virtual display is disconnected
void disconnectDisplay(int32_t displayId);
// does this display have layers handled by HWC
bool hasDeviceComposition(int32_t displayId) const;
// does this display have pending request to flip client target
bool hasFlipClientTargetRequest(int32_t displayId) const;
// does this display have layers handled by GLES
bool hasClientComposition(int32_t displayId) const;
// get the present fence received from the last call to present.
sp<Fence> getPresentFence(int32_t displayId) const;
// Get last release fence for the given layer
sp<Fence> getLayerReleaseFence(int32_t displayId,
HWC2::Layer* layer) const;
// Set the output buffer and acquire fence for a virtual display.
// Returns INVALID_OPERATION if displayId is not a virtual display.
status_t setOutputBuffer(int32_t displayId, const sp<Fence>& acquireFence,
const sp<GraphicBuffer>& buf);
// After SurfaceFlinger has retrieved the release fences for all the frames,
// it can call this to clear the shared pointers in the release fence map
void clearReleaseFences(int32_t displayId);
// Fetches the HDR capabilities of the given display
status_t getHdrCapabilities(int32_t displayId, HdrCapabilities* outCapabilities);
int32_t getSupportedPerFrameMetadata(int32_t displayId) const;
// Returns the available RenderIntent of the given display.
std::vector<ui::RenderIntent> getRenderIntents(int32_t displayId, ui::ColorMode colorMode) const;
mat4 getDataspaceSaturationMatrix(int32_t displayId, ui::Dataspace dataspace);
// Events handling ---------------------------------------------------------
// Returns true if successful, false otherwise. The
// DisplayDevice::DisplayType of the display is returned as an output param.
bool onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp, int32_t* outDisplay);
std::optional<DisplayId> onHotplug(hwc2_display_t hwcDisplayId, int32_t displayType,
HWC2::Connection connection);
void setVsyncEnabled(int32_t displayId, HWC2::Vsync enabled);
// Query display parameters. Pass in a display index (e.g.
// HWC_DISPLAY_PRIMARY).
nsecs_t getRefreshTimestamp(int32_t displayId) const;
bool isConnected(int32_t displayId) const;
// Non-const because it can update configMap inside of mDisplayData
std::vector<std::shared_ptr<const HWC2::Display::Config>>
getConfigs(int32_t displayId) const;
std::shared_ptr<const HWC2::Display::Config>
getActiveConfig(int32_t displayId) const;
int getActiveConfigIndex(int32_t displayId) const;
std::vector<ui::ColorMode> getColorModes(int32_t displayId) const;
status_t setActiveColorMode(int32_t displayId, ui::ColorMode mode,
ui::RenderIntent renderIntent);
bool isUsingVrComposer() const;
// for debugging ----------------------------------------------------------
void dump(String8& out) const;
android::Hwc2::Composer* getComposer() const { return mHwcDevice->getComposer(); }
std::optional<hwc2_display_t> getHwcDisplayId(int32_t displayId) const;
private:
// For unit tests
friend TestableSurfaceFlinger;
bool isValidDisplay(int32_t displayId) const;
static void validateChange(HWC2::Composition from, HWC2::Composition to);
struct cb_context;
struct DisplayData {
bool isVirtual = false;
bool hasClientComposition = false;
bool hasDeviceComposition = false;
HWC2::Display* hwcDisplay = nullptr;
HWC2::DisplayRequest displayRequests;
sp<Fence> lastPresentFence = Fence::NO_FENCE; // signals when the last set op retires
std::unordered_map<HWC2::Layer*, sp<Fence>> releaseFences;
buffer_handle_t outbufHandle = nullptr;
sp<Fence> outbufAcquireFence = Fence::NO_FENCE;
mutable std::unordered_map<int32_t,
std::shared_ptr<const HWC2::Display::Config>> configMap;
// protected by mVsyncLock
HWC2::Vsync vsyncEnabled = HWC2::Vsync::Disable;
bool validateWasSkipped;
HWC2::Error presentError;
};
std::vector<DisplayData> mDisplayData{HWC_NUM_PHYSICAL_DISPLAY_TYPES};
// This must be destroyed before mDisplayData, because destructor may call back into HWComposer
// and look up DisplayData.
std::unique_ptr<HWC2::Device> mHwcDevice;
std::set<size_t> mFreeDisplaySlots;
std::unordered_map<hwc2_display_t, int32_t> mHwcDisplaySlots;
// protect mDisplayData from races between prepare and dump
mutable Mutex mDisplayLock;
cb_context* mCBContext = nullptr;
size_t mVSyncCounts[HWC_NUM_PHYSICAL_DISPLAY_TYPES]{0, 0};
uint32_t mRemainingHwcVirtualDisplays{mHwcDevice->getMaxVirtualDisplayCount()};
// protected by mLock
mutable Mutex mLock;
mutable std::unordered_map<int32_t, nsecs_t> mLastHwVSync{
{{HWC_DISPLAY_PRIMARY, 0}, {HWC_DISPLAY_EXTERNAL, 0}}};
// thread-safe
mutable Mutex mVsyncLock;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_SF_HWCOMPOSER_H
|
