90e1eda3a3
Refactoring is necessary to attain flexibility in setting mdp overlay params at runtime, while using composition bypass. This change includes new APIs for setting crop rectangle, display params and commiting mdp params, namely setCrop(), setDisplayParams() and commit(), respectively. Change-Id: Id57035602baabd954fd6b484be4f63fef632d74b
139 lines
3.7 KiB
C++
139 lines
3.7 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef INCLUDE_OVERLAY_LIB_UI
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#define INCLUDE_OVERLAY_LIB_UI
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#include <errno.h>
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#include "overlayLib.h"
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namespace overlay {
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enum channel_state_t { UP, CLOSED, PENDING_CLOSE };
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enum status_t {
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NO_ERROR,
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INVALID_OPERATION = -ENOSYS,
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BAD_VALUE = -EINVAL,
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NO_INIT = -ENODEV,
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ALREADY_EXISTS = -EEXIST
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};
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/*
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* Display class provides following services
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* Open FB
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* FB information (Width, Height and Bpp)
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*/
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class Display {
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int mFD;
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int mFBWidth;
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int mFBHeight;
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int mFBBpp;
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Display(const Display& objDisplay);
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Display& operator=(const Display& objDisplay);
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public:
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explicit Display() : mFD(NO_INIT) { };
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~Display() { close(mFD); };
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int getFD() const { return mFD; };
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int getFBWidth() const { return mFBWidth; };
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int getFBHeight() const { return mFBHeight; };
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int getFBBpp() const { return mFBBpp; };
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status_t openDisplay(int fbnum);
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void closeDisplay();
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};
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/*
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* Rotator class, manages rotation of the buffers
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* It communicates with Rotator driver, provides following services
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* Start rotator session
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* Rotate buffer
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*/
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class Rotator {
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int mFD;
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int mSessionID;
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int mPmemFD;
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void* mPmemAddr;
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int mRotOffset[max_num_buffers];
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int mCurrentItem;
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int mNumBuffers;
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int mSize;
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android::sp<gralloc::IAllocController> mAlloc;
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int mBufferType;
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Rotator(const Rotator& objROtator);
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Rotator& operator=(const Rotator& objRotator);
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public:
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explicit Rotator();
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~Rotator();
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status_t startRotSession(msm_rotator_img_info& rotInfo, int size,
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int numBuffers = max_num_buffers);
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status_t closeRotSession();
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status_t rotateBuffer(msm_rotator_data_info& rotData);
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};
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/*
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* Overlay class for Comp. Bypass
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* We merge control and data channel classes.
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*/
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class OverlayUI {
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channel_state_t mChannelState;
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overlay_buffer_info mSource;
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int mZorder;
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int mOrientation;
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int mFBNum;
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bool mWaitForVsync;
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bool mIsFg;
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int mSessionID;
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Display mobjDisplay;
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Rotator mobjRotator;
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mdp_overlay mOvInfo;
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msm_rotator_img_info mRotInfo;
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OverlayUI(const OverlayUI& objOverlay);
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OverlayUI& operator=(const OverlayUI& objOverlay);
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status_t startOVSession();
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status_t closeOVSession();
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void setupOvRotInfo();
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public:
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enum fbnum_t { FB0, FB1 };
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OverlayUI();
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~OverlayUI();
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void setSource(const overlay_buffer_info& info, int orientation);
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void setPosition(int x, int y, int w, int h);
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void setCrop(int x, int y, int w, int h);
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void setDisplayParams(int fbNum, bool waitForVsync, bool isFg, int zorder,
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bool isVGPipe);
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status_t commit();
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status_t closeChannel();
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channel_state_t isChannelUP() const { return mChannelState; };
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int getFBWidth() const { return mobjDisplay.getFBWidth(); };
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int getFBHeight() const { return mobjDisplay.getFBHeight(); };
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status_t queueBuffer(buffer_handle_t buffer);
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};
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};
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#endif
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