1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * Copyright (C) 2012, The Linux Foundation. All rights reserved. 4 * 5 * Not a Contribution, Apache license notifications and license are 6 * retained for attribution purposes only. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 #ifndef HWC_FBUPDATE_H 21 #define HWC_FBUPDATE_H 22 #include "hwc_utils.h" 23 #include "overlay.h" 24 25 #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) 26 #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) 27 28 namespace overlay { 29 class Rotator; 30 } 31 32 namespace qhwc { 33 namespace ovutils = overlay::utils; 34 35 //Framebuffer update Interface 36 class IFBUpdate { 37 public: 38 explicit IFBUpdate(hwc_context_t *ctx, const int& dpy); 39 virtual ~IFBUpdate() {}; 40 // Sets up members and prepares overlay if conditions are met 41 virtual bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 42 hwc_rect_t fbUpdatingRect, int fbZorder) = 0; 43 virtual bool prepareAndValidate(hwc_context_t *ctx, 44 hwc_display_contents_1 *list, int fbZorder); 45 // Draws layer 46 virtual bool draw(hwc_context_t *ctx, private_handle_t *hnd) = 0; 47 //Reset values 48 virtual void reset(); 49 //Factory method that returns a low-res or high-res version 50 static IFBUpdate *getObject(hwc_context_t *ctx, const int& dpy); 51 52 protected: 53 const int mDpy; // display to update 54 bool mModeOn; // if prepare happened 55 overlay::Rotator *mRot; 56 int mAlignedFBWidth; 57 int mAlignedFBHeight; 58 int mTileEnabled; 59 }; 60 61 //Non-Split panel handler. 62 class FBUpdateNonSplit : public IFBUpdate { 63 public: 64 explicit FBUpdateNonSplit(hwc_context_t *ctx, const int& dpy); 65 virtual ~FBUpdateNonSplit() {}; 66 bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 67 hwc_rect_t fbUpdatingRect, int fbZorder); 68 bool draw(hwc_context_t *ctx, private_handle_t *hnd); 69 void reset(); 70 private: 71 bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list, 72 hwc_rect_t fbUpdatingRect, int fbZorder); 73 bool preRotateExtDisplay(hwc_context_t *ctx, 74 hwc_layer_1_t *layer, 75 ovutils::Whf &info, 76 hwc_rect_t& sourceCrop, 77 ovutils::eMdpFlags& mdpFlags, 78 int& rotFlags); 79 ovutils::eDest mDest; //pipe to draw on 80 }; 81 82 //Split panel handler. 83 class FBUpdateSplit : public IFBUpdate { 84 public: 85 explicit FBUpdateSplit(hwc_context_t *ctx, const int& dpy); 86 virtual ~FBUpdateSplit() {}; 87 bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 88 hwc_rect_t fbUpdatingRect, int fbZorder); 89 bool draw(hwc_context_t *ctx, private_handle_t *hnd); 90 void reset(); 91 92 protected: 93 virtual bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list, 94 hwc_rect_t fbUpdatingRect, int fbZorder); 95 ovutils::eDest mDestLeft; //left pipe to draw on 96 ovutils::eDest mDestRight; //right pipe to draw on 97 }; 98 99 //Source Split Handler 100 class FBSrcSplit : public FBUpdateSplit { 101 public: 102 explicit FBSrcSplit(hwc_context_t *ctx, const int& dpy); 103 virtual ~FBSrcSplit() {}; 104 private: 105 bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list, 106 hwc_rect_t fbUpdatingRect, int fbZorder); 107 }; 108 109 }; //namespace qhwc 110 111 #endif //HWC_FBUPDATE_H 112
