2 * Copyright (C) 2010 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include "HWComposer_hwc1.h"
21 #ifndef ANDROID_SF_HWCOMPOSER_H
22 #define ANDROID_SF_HWCOMPOSER_H
27 #include <sys/types.h>
31 #include <utils/BitSet.h>
32 #include <utils/Condition.h>
33 #include <utils/Mutex.h>
34 #include <utils/StrongPointer.h>
35 #include <utils/Thread.h>
36 #include <utils/Timers.h>
37 #include <utils/Vector.h>
43 extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
44 const struct timespec *request,
45 struct timespec *remain);
47 struct framebuffer_device_t;
55 // ---------------------------------------------------------------------------
71 friend class HWComposer;
72 virtual void onVSyncReceived(int32_t disp, nsecs_t timestamp) = 0;
73 virtual void onHotplugReceived(int32_t disp, bool connected) = 0;
75 virtual ~EventHandler() {}
78 HWComposer(const sp<SurfaceFlinger>& flinger);
82 void setEventHandler(EventHandler* handler);
84 bool hasCapability(HWC2::Capability capability) const;
86 // Attempts to allocate a virtual display. If the virtual display is created
87 // on the HWC device, outId will contain its HWC ID.
88 status_t allocateVirtualDisplay(uint32_t width, uint32_t height,
89 android_pixel_format_t* format, int32_t* outId);
91 // Attempts to create a new layer on this display
92 std::shared_ptr<HWC2::Layer> createLayer(int32_t displayId);
94 // Asks the HAL what it can do
95 status_t prepare(DisplayDevice& displayDevice);
97 status_t setClientTarget(int32_t displayId, const sp<Fence>& acquireFence,
98 const sp<GraphicBuffer>& target, android_dataspace_t dataspace);
100 // Finalize the layers and present them
101 status_t commit(int32_t displayId);
104 status_t setPowerMode(int32_t displayId, int mode);
107 status_t setActiveConfig(int32_t displayId, size_t configId);
109 // Sets a color transform to be applied to the result of composition
110 status_t setColorTransform(int32_t displayId, const mat4& transform);
112 // reset state when an external, non-virtual display is disconnected
113 void disconnectDisplay(int32_t displayId);
115 // does this display have layers handled by HWC
116 bool hasDeviceComposition(int32_t displayId) const;
118 // does this display have layers handled by GLES
119 bool hasClientComposition(int32_t displayId) const;
121 // get the retire fence for the previous frame (i.e., corresponding to the
122 // last call to presentDisplay
123 sp<Fence> getRetireFence(int32_t displayId) const;
125 // Get last release fence for the given layer
126 sp<Fence> getLayerReleaseFence(int32_t displayId,
127 const std::shared_ptr<HWC2::Layer>& layer) const;
129 // Set the output buffer and acquire fence for a virtual display.
130 // Returns INVALID_OPERATION if displayId is not a virtual display.
131 status_t setOutputBuffer(int32_t displayId, const sp<Fence>& acquireFence,
132 const sp<GraphicBuffer>& buf);
134 // After SurfaceFlinger has retrieved the release fences for all the frames,
135 // it can call this to clear the shared pointers in the release fence map
136 void clearReleaseFences(int32_t displayId);
138 // Returns the HDR capabilities of the given display
139 std::unique_ptr<HdrCapabilities> getHdrCapabilities(int32_t displayId);
141 // Events handling ---------------------------------------------------------
143 void setVsyncEnabled(int32_t disp, HWC2::Vsync enabled);
145 // Query display parameters. Pass in a display index (e.g.
146 // HWC_DISPLAY_PRIMARY).
147 nsecs_t getRefreshTimestamp(int32_t disp) const;
148 bool isConnected(int32_t disp) const;
150 // Non-const because it can update configMap inside of mDisplayData
151 std::vector<std::shared_ptr<const HWC2::Display::Config>>
152 getConfigs(int32_t displayId) const;
154 std::shared_ptr<const HWC2::Display::Config>
155 getActiveConfig(int32_t displayId) const;
157 std::vector<android_color_mode_t> getColorModes(int32_t displayId) const;
159 status_t setActiveColorMode(int32_t displayId, android_color_mode_t mode);
161 // for debugging ----------------------------------------------------------
162 void dump(String8& out) const;
165 static const int32_t VIRTUAL_DISPLAY_ID_BASE = 2;
167 void loadHwcModule();
169 bool isValidDisplay(int32_t displayId) const;
170 static void validateChange(HWC2::Composition from, HWC2::Composition to);
174 void invalidate(const std::shared_ptr<HWC2::Display>& display);
175 void vsync(const std::shared_ptr<HWC2::Display>& display,
177 void hotplug(const std::shared_ptr<HWC2::Display>& display,
178 HWC2::Connection connected);
185 bool hasClientComposition;
186 bool hasDeviceComposition;
187 std::shared_ptr<HWC2::Display> hwcDisplay;
188 HWC2::DisplayRequest displayRequests;
189 sp<Fence> lastRetireFence; // signals when the last set op retires
190 std::unordered_map<std::shared_ptr<HWC2::Layer>, sp<Fence>>
192 buffer_handle_t outbufHandle;
193 sp<Fence> outbufAcquireFence;
194 mutable std::unordered_map<int32_t,
195 std::shared_ptr<const HWC2::Display::Config>> configMap;
197 // protected by mVsyncLock
198 HWC2::Vsync vsyncEnabled;
201 sp<SurfaceFlinger> mFlinger;
202 std::unique_ptr<HWC2On1Adapter> mAdapter;
203 std::unique_ptr<HWC2::Device> mHwcDevice;
204 std::vector<DisplayData> mDisplayData;
205 std::set<size_t> mFreeDisplaySlots;
206 std::unordered_map<hwc2_display_t, int32_t> mHwcDisplaySlots;
207 // protect mDisplayData from races between prepare and dump
208 mutable Mutex mDisplayLock;
210 cb_context* mCBContext;
211 EventHandler* mEventHandler;
212 size_t mVSyncCounts[HWC_NUM_PHYSICAL_DISPLAY_TYPES];
213 uint32_t mRemainingHwcVirtualDisplays;
215 // protected by mLock
217 mutable std::unordered_map<int32_t, nsecs_t> mLastHwVSync;
220 mutable Mutex mVsyncLock;
223 // ---------------------------------------------------------------------------
224 }; // namespace android
226 #endif // ANDROID_SF_HWCOMPOSER_H
228 #endif // #ifdef USE_HWC2