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90 lines
3.0 KiB
90 lines
3.0 KiB
/* |
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* Copyright (C) 2010 The Android Open Source Project |
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* Copyright (C) 2012-2013, The Linux Foundation. All rights reserved. |
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* |
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* Not a Contribution, Apache license notifications and license are retained |
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* for attribution purposes only. |
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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 HWC_COPYBIT_H |
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#define HWC_COPYBIT_H |
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#include "hwc_utils.h" |
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#define NUM_RENDER_BUFFERS 2 |
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namespace qhwc { |
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class CopyBit { |
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public: |
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CopyBit(); |
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~CopyBit(); |
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// API to get copybit engine(non static) |
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struct copybit_device_t *getCopyBitDevice(); |
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//Sets up members and prepares copybit if conditions are met |
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bool prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list, |
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int dpy); |
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//Draws layer if the layer is set for copybit in prepare |
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bool draw(hwc_context_t *ctx, hwc_display_contents_1_t *list, |
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int dpy, int* fd); |
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// resets the values |
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void reset(); |
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private_handle_t * getCurrentRenderBuffer(); |
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void setReleaseFd(int fd); |
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private: |
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// holds the copybit device |
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struct copybit_device_t *mEngine; |
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// Helper functions for copybit composition |
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int drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer, |
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private_handle_t *renderBuffer, int dpy); |
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bool canUseCopybitForYUV (hwc_context_t *ctx); |
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bool canUseCopybitForRGB (hwc_context_t *ctx, |
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hwc_display_contents_1_t *list, int dpy); |
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bool validateParams (hwc_context_t *ctx, |
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const hwc_display_contents_1_t *list); |
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//Flags if this feature is on. |
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bool mIsModeOn; |
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// flag that indicates whether CopyBit composition is enabled for this cycle |
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bool mCopyBitDraw; |
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unsigned int getRGBRenderingArea |
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(const hwc_display_contents_1_t *list); |
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void getLayerResolution(const hwc_layer_1_t* layer, |
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unsigned int &width, unsigned int& height); |
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int allocRenderBuffers(int w, int h, int f); |
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void freeRenderBuffers(); |
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int clear (private_handle_t* hnd, hwc_rect_t& rect); |
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private_handle_t* mRenderBuffer[NUM_RENDER_BUFFERS]; |
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// Index of the current intermediate render buffer |
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int mCurRenderBufferIndex; |
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//These are the the release FDs of the T-2 and T-1 round |
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//We wait on the T-2 fence |
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int mRelFd[2]; |
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//Dynamic composition threshold for deciding copybit usage. |
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double mDynThreshold; |
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}; |
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}; //namespace qhwc |
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#endif //HWC_COPYBIT_H
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