Revert "Delete HWC1"
This reverts commit 90f923493fa053655a203c34ea491086aeb07602.
Change-Id: If9da49e3bc85f8ff21ac1bd22a6bab97e9aa3103
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.h b/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.h
new file mode 100644
index 0000000..170e382
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/HWComposer_hwc1.h
@@ -0,0 +1,398 @@
+/*
+ * 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_HWC1_H
+#define ANDROID_SF_HWCOMPOSER_HWC1_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <hardware/hwcomposer_defs.h>
+
+#include <system/graphics.h>
+
+#include <ui/Fence.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>
+
+extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
+ const struct timespec *request,
+ struct timespec *remain);
+
+struct hwc_composer_device_1;
+struct hwc_display_contents_1;
+struct hwc_layer_1;
+struct hwc_procs;
+struct framebuffer_device_t;
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+class Fence;
+class FloatRect;
+class GraphicBuffer;
+class NativeHandle;
+class Region;
+class String8;
+class SurfaceFlinger;
+
+class HWComposer
+{
+public:
+ class EventHandler {
+ friend class HWComposer;
+ virtual void onVSyncReceived(int disp, nsecs_t timestamp) = 0;
+ virtual void onHotplugReceived(int disp, bool connected) = 0;
+ protected:
+ virtual ~EventHandler() {}
+ };
+
+ enum {
+ NUM_BUILTIN_DISPLAYS = HWC_NUM_PHYSICAL_DISPLAY_TYPES,
+ MAX_HWC_DISPLAYS = HWC_NUM_DISPLAY_TYPES,
+ VIRTUAL_DISPLAY_ID_BASE = HWC_DISPLAY_VIRTUAL,
+ };
+
+ HWComposer(
+ const sp<SurfaceFlinger>& flinger,
+ EventHandler& handler);
+
+ ~HWComposer();
+
+ status_t initCheck() const;
+
+ // Returns a display ID starting at VIRTUAL_DISPLAY_ID_BASE, this ID is to
+ // be used with createWorkList (and all other methods requiring an ID
+ // below).
+ // IDs below NUM_BUILTIN_DISPLAYS are pre-defined and therefore are
+ // always valid.
+ // Returns -1 if an ID cannot be allocated
+ int32_t allocateDisplayId();
+
+ // Recycles the given virtual display ID and frees the associated worklist.
+ // IDs below NUM_BUILTIN_DISPLAYS are not recycled.
+ status_t freeDisplayId(int32_t id);
+
+
+ // Asks the HAL what it can do
+ status_t prepare();
+
+ // commits the list
+ status_t commit();
+
+ // set power mode
+ status_t setPowerMode(int disp, int mode);
+
+ // set active config
+ status_t setActiveConfig(int disp, int mode);
+
+ // reset state when an external, non-virtual display is disconnected
+ void disconnectDisplay(int disp);
+
+ // create a work list for numLayers layer. sets HWC_GEOMETRY_CHANGED.
+ status_t createWorkList(int32_t id, size_t numLayers);
+
+ bool supportsFramebufferTarget() const;
+
+ // does this display have layers handled by HWC
+ bool hasHwcComposition(int32_t id) const;
+
+ // does this display have layers handled by GLES
+ bool hasGlesComposition(int32_t id) const;
+
+ // get the releaseFence file descriptor for a display's framebuffer layer.
+ // the release fence is only valid after commit()
+ sp<Fence> getAndResetReleaseFence(int32_t id);
+
+ // needed forward declarations
+ class LayerListIterator;
+
+ // return the visual id to be used to find a suitable EGLConfig for
+ // *ALL* displays.
+ int getVisualID() const;
+
+ // Forwarding to FB HAL for pre-HWC-1.1 code (see FramebufferSurface).
+ int fbPost(int32_t id, const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf);
+ int fbCompositionComplete();
+ void fbDump(String8& result);
+
+ // Set the output buffer and acquire fence for a virtual display.
+ // Returns INVALID_OPERATION if id is not a virtual display.
+ status_t setOutputBuffer(int32_t id, const sp<Fence>& acquireFence,
+ const sp<GraphicBuffer>& buf);
+
+ // Get the retire fence for the last committed frame. This fence will
+ // signal when the h/w composer is completely finished with the frame.
+ // For physical displays, it is no longer being displayed. For virtual
+ // displays, writes to the output buffer are complete.
+ sp<Fence> getLastRetireFence(int32_t id) const;
+
+ status_t setCursorPositionAsync(int32_t id, const Rect &pos);
+
+ /*
+ * Interface to hardware composer's layers functionality.
+ * This abstracts the HAL interface to layers which can evolve in
+ * incompatible ways from one release to another.
+ * The idea is that we could extend this interface as we add
+ * features to h/w composer.
+ */
+ class HWCLayerInterface {
+ protected:
+ virtual ~HWCLayerInterface() { }
+ public:
+ virtual int32_t getCompositionType() const = 0;
+ virtual uint32_t getHints() const = 0;
+ virtual sp<Fence> getAndResetReleaseFence() = 0;
+ virtual void setDefaultState() = 0;
+ virtual void setSkip(bool skip) = 0;
+ virtual void setIsCursorLayerHint(bool isCursor = true) = 0;
+ virtual void setBlending(uint32_t blending) = 0;
+ virtual void setTransform(uint32_t transform) = 0;
+ virtual void setFrame(const Rect& frame) = 0;
+ virtual void setCrop(const FloatRect& crop) = 0;
+ virtual void setVisibleRegionScreen(const Region& reg) = 0;
+ virtual void setSurfaceDamage(const Region& reg) = 0;
+ virtual void setSidebandStream(const sp<NativeHandle>& stream) = 0;
+ virtual void setBuffer(const sp<GraphicBuffer>& buffer) = 0;
+ virtual void setAcquireFenceFd(int fenceFd) = 0;
+ virtual void setPlaneAlpha(uint8_t alpha) = 0;
+ virtual void onDisplayed() = 0;
+ };
+
+ /*
+ * Interface used to implement an iterator to a list
+ * of HWCLayer.
+ */
+ class HWCLayer : public HWCLayerInterface {
+ friend class LayerListIterator;
+ // select the layer at the given index
+ virtual status_t setLayer(size_t index) = 0;
+ virtual HWCLayer* dup() = 0;
+ static HWCLayer* copy(HWCLayer *rhs) {
+ return rhs ? rhs->dup() : NULL;
+ }
+ protected:
+ virtual ~HWCLayer() { }
+ };
+
+ /*
+ * Iterator through a HWCLayer list.
+ * This behaves more or less like a forward iterator.
+ */
+ class LayerListIterator {
+ friend class HWComposer;
+ HWCLayer* const mLayerList;
+ size_t mIndex;
+
+ LayerListIterator() : mLayerList(NULL), mIndex(0) { }
+
+ LayerListIterator(HWCLayer* layer, size_t index)
+ : mLayerList(layer), mIndex(index) { }
+
+ // we don't allow assignment, because we don't need it for now
+ LayerListIterator& operator = (const LayerListIterator& rhs);
+
+ public:
+ // copy operators
+ LayerListIterator(const LayerListIterator& rhs)
+ : mLayerList(HWCLayer::copy(rhs.mLayerList)), mIndex(rhs.mIndex) {
+ }
+
+ ~LayerListIterator() { delete mLayerList; }
+
+ // pre-increment
+ LayerListIterator& operator++() {
+ mLayerList->setLayer(++mIndex);
+ return *this;
+ }
+
+ // dereference
+ HWCLayerInterface& operator * () { return *mLayerList; }
+ HWCLayerInterface* operator -> () { return mLayerList; }
+
+ // comparison
+ bool operator == (const LayerListIterator& rhs) const {
+ return mIndex == rhs.mIndex;
+ }
+ bool operator != (const LayerListIterator& rhs) const {
+ return !operator==(rhs);
+ }
+ };
+
+ // Returns an iterator to the beginning of the layer list
+ LayerListIterator begin(int32_t id);
+
+ // Returns an iterator to the end of the layer list
+ LayerListIterator end(int32_t id);
+
+
+ // Events handling ---------------------------------------------------------
+
+ enum {
+ EVENT_VSYNC = HWC_EVENT_VSYNC
+ };
+
+ void eventControl(int disp, int event, int enabled);
+
+ struct DisplayConfig {
+ uint32_t width;
+ uint32_t height;
+ float xdpi;
+ float ydpi;
+ nsecs_t refresh;
+ android_color_mode_t colorMode;
+ bool operator==(const DisplayConfig& rhs) const {
+ return width == rhs.width &&
+ height == rhs.height &&
+ xdpi == rhs.xdpi &&
+ ydpi == rhs.ydpi &&
+ refresh == rhs.refresh &&
+ colorMode == rhs.colorMode;
+ }
+ };
+
+ // Query display parameters. Pass in a display index (e.g.
+ // HWC_DISPLAY_PRIMARY).
+ nsecs_t getRefreshTimestamp(int disp) const;
+ sp<Fence> getDisplayFence(int disp) const;
+ uint32_t getFormat(int disp) const;
+ bool isConnected(int disp) const;
+
+ // These return the values for the current config of a given display index.
+ // To get the values for all configs, use getConfigs below.
+ uint32_t getWidth(int disp) const;
+ uint32_t getHeight(int disp) const;
+ float getDpiX(int disp) const;
+ float getDpiY(int disp) const;
+ nsecs_t getRefreshPeriod(int disp) const;
+ android_color_mode_t getColorMode(int disp) const;
+
+ const Vector<DisplayConfig>& getConfigs(int disp) const;
+ size_t getCurrentConfig(int disp) const;
+
+ status_t setVirtualDisplayProperties(int32_t id, uint32_t w, uint32_t h,
+ uint32_t format);
+
+ // this class is only used to fake the VSync event on systems that don't
+ // have it.
+ class VSyncThread : public Thread {
+ HWComposer& mHwc;
+ mutable Mutex mLock;
+ Condition mCondition;
+ bool mEnabled;
+ mutable nsecs_t mNextFakeVSync;
+ nsecs_t mRefreshPeriod;
+ virtual void onFirstRef();
+ virtual bool threadLoop();
+ public:
+ VSyncThread(HWComposer& hwc);
+ void setEnabled(bool enabled);
+ };
+
+ friend class VSyncThread;
+
+ // for debugging ----------------------------------------------------------
+ void dump(String8& out) const;
+
+private:
+ void loadHwcModule();
+ int loadFbHalModule();
+
+ LayerListIterator getLayerIterator(int32_t id, size_t index);
+
+ struct cb_context;
+
+ static void hook_invalidate(const struct hwc_procs* procs);
+ static void hook_vsync(const struct hwc_procs* procs, int disp,
+ int64_t timestamp);
+ static void hook_hotplug(const struct hwc_procs* procs, int disp,
+ int connected);
+
+ inline void invalidate();
+ inline void vsync(int disp, int64_t timestamp);
+ inline void hotplug(int disp, int connected);
+
+ status_t queryDisplayProperties(int disp);
+
+ status_t setFramebufferTarget(int32_t id,
+ const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf);
+
+ struct DisplayData {
+ DisplayData();
+ ~DisplayData();
+ Vector<DisplayConfig> configs;
+ size_t currentConfig;
+ uint32_t format; // pixel format from FB hal, for pre-hwc-1.1
+ bool connected;
+ bool hasFbComp;
+ bool hasOvComp;
+ size_t capacity;
+ hwc_display_contents_1* list;
+ hwc_layer_1* framebufferTarget;
+ buffer_handle_t fbTargetHandle;
+ sp<Fence> lastRetireFence; // signals when the last set op retires
+ sp<Fence> lastDisplayFence; // signals when the last set op takes
+ // effect on screen
+ buffer_handle_t outbufHandle;
+ sp<Fence> outbufAcquireFence;
+
+ // protected by mEventControlLock
+ int32_t events;
+
+ // We need to hold "copies" of these for memory management purposes. The
+ // actual hwc_layer_1_t holds pointers to the memory within. Vector<>
+ // internally doesn't copy the memory unless one of the copies is
+ // modified.
+ Vector<Region> visibleRegions;
+ Vector<Region> surfaceDamageRegions;
+ };
+
+ sp<SurfaceFlinger> mFlinger;
+ framebuffer_device_t* mFbDev;
+ struct hwc_composer_device_1* mHwc;
+ // invariant: mLists[0] != NULL iff mHwc != NULL
+ // mLists[i>0] can be NULL. that display is to be ignored
+ struct hwc_display_contents_1* mLists[MAX_HWC_DISPLAYS];
+ DisplayData mDisplayData[MAX_HWC_DISPLAYS];
+ // protect mDisplayData from races between prepare and dump
+ mutable Mutex mDisplayLock;
+ size_t mNumDisplays;
+
+ cb_context* mCBContext;
+ EventHandler& mEventHandler;
+ size_t mVSyncCounts[HWC_NUM_PHYSICAL_DISPLAY_TYPES];
+ sp<VSyncThread> mVSyncThread;
+ bool mDebugForceFakeVSync;
+ BitSet32 mAllocatedDisplayIDs;
+
+ // protected by mLock
+ mutable Mutex mLock;
+ mutable nsecs_t mLastHwVSync[HWC_NUM_PHYSICAL_DISPLAY_TYPES];
+
+ // thread-safe
+ mutable Mutex mEventControlLock;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_SF_HWCOMPOSER_H