| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * Copyright (C) 2012-2013, The Linux Foundation. All rights reserved. |
| * |
| * Not a Contribution, Apache license notifications and license are retained |
| * for attribution purposes only. |
| * |
| * 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 HWC_COPYBIT_H |
| #define HWC_COPYBIT_H |
| #include "hwc_utils.h" |
| |
| #define NUM_RENDER_BUFFERS 3 |
| |
| namespace qhwc { |
| |
| class CopyBit { |
| public: |
| CopyBit(); |
| ~CopyBit(); |
| // API to get copybit engine(non static) |
| struct copybit_device_t *getCopyBitDevice(); |
| //Sets up members and prepares copybit if conditions are met |
| bool prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list, |
| int dpy); |
| //Draws layer if the layer is set for copybit in prepare |
| bool draw(hwc_context_t *ctx, hwc_display_contents_1_t *list, |
| int dpy, int* fd); |
| // resets the values |
| void reset(); |
| |
| private_handle_t * getCurrentRenderBuffer(); |
| |
| void setReleaseFd(int fd); |
| |
| private: |
| // holds the copybit device |
| struct copybit_device_t *mEngine; |
| // Helper functions for copybit composition |
| int drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer, |
| private_handle_t *renderBuffer, int dpy, bool isFG); |
| bool canUseCopybitForYUV (hwc_context_t *ctx); |
| bool canUseCopybitForRGB (hwc_context_t *ctx, |
| hwc_display_contents_1_t *list, int dpy); |
| bool validateParams (hwc_context_t *ctx, |
| const hwc_display_contents_1_t *list); |
| //Flags if this feature is on. |
| bool mIsModeOn; |
| // flag that indicates whether CopyBit composition is enabled for this cycle |
| bool mCopyBitDraw; |
| |
| unsigned int getRGBRenderingArea |
| (const hwc_display_contents_1_t *list); |
| |
| void getLayerResolution(const hwc_layer_1_t* layer, |
| unsigned int &width, unsigned int& height); |
| |
| int allocRenderBuffers(int w, int h, int f); |
| |
| void freeRenderBuffers(); |
| |
| int clear (private_handle_t* hnd, hwc_rect_t& rect); |
| |
| private_handle_t* mRenderBuffer[NUM_RENDER_BUFFERS]; |
| |
| // Index of the current intermediate render buffer |
| int mCurRenderBufferIndex; |
| |
| //These are the the release FDs of the T-2 and T-1 round |
| //We wait on the T-2 fence |
| int mRelFd[2]; |
| |
| //Dynamic composition threshold for deciding copybit usage. |
| double mDynThreshold; |
| }; |
| |
| }; //namespace qhwc |
| |
| #endif //HWC_COPYBIT_H |