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67 lines
2.4 KiB
67 lines
2.4 KiB
/*
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* Copyright (c) 2013 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef HWC_VIRTUAL_DISPLAY_H
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#define HWC_VIRTUAL_DISPLAY_H
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#include <linux/fb.h>
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struct hwc_context_t;
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namespace qhwc {
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class VirtualDisplay
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{
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public:
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VirtualDisplay(hwc_context_t* ctx);
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~VirtualDisplay();
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int configure();
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void getAttributes(int& width, int& height);
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int teardown();
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bool isConnected() {
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return mHwcContext->dpyAttr[HWC_DISPLAY_VIRTUAL].connected;
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}
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private:
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bool openFrameBuffer();
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bool closeFrameBuffer();
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void setAttributes();
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void initResolution(uint32_t &extW, uint32_t &extH);
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void setToPrimary(uint32_t maxArea, uint32_t priW, uint32_t priH,
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uint32_t &extW, uint32_t &extH);
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void setDownScaleMode(uint32_t maxArea);
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int mFd;
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hwc_context_t *mHwcContext;
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fb_var_screeninfo mVInfo;
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};
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}; //qhwc
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// ---------------------------------------------------------------------------
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#endif //HWC_VIRTUAL_DISPLAY_H
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