114 lines
4.1 KiB
C++
114 lines
4.1 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, Code Aurora Forum. 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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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <gralloc_priv.h>
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#include <gr.h>
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#include <dlfcn.h>
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#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
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#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
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namespace qhwc {
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//Feature for using Copybit to display RGB layers.
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typedef EGLClientBuffer (*functype_eglGetRenderBufferANDROID) (
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EGLDisplay dpy,
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EGLSurface draw);
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typedef EGLSurface (*functype_eglGetCurrentSurface)(EGLint readdraw);
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class CopyBit {
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public:
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//Sets up members and prepares copybit if conditions are met
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static bool prepare(hwc_context_t *ctx, hwc_layer_list_t *list);
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//Draws layer if the layer is set for copybit in prepare
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static bool draw(hwc_context_t *ctx, hwc_layer_list_t *list, EGLDisplay dpy,
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EGLSurface sur);
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//Receives data from hwc
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static void setStats(int yuvCount, int yuvLayerIndex, bool isYuvLayerSkip);
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static void updateEglHandles(void*);
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static int drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_t *layer,
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EGLDisplay dpy, EGLSurface surface,
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functype_eglGetRenderBufferANDROID& LINK_eglGetRenderBufferANDROID,
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functype_eglGetCurrentSurface LINK_eglGetCurrentSurface);
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static bool canUseCopybitForYUV (hwc_context_t *ctx);
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static bool canUseCopybitForRGB (hwc_context_t *ctx,
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hwc_layer_list_t *list);
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static bool validateParams (hwc_context_t *ctx,
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const hwc_layer_list_t *list);
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static void closeEglLib();
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static void openEglLibAndGethandle();
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private:
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//Marks layer flags if this feature is used
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static void markFlags(hwc_layer_t *layer);
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//returns yuv count
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static int getYuvCount();
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//Number of yuv layers in this drawing round
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static int sYuvCount;
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//Index of YUV layer, relevant only if count is 1
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static int sYuvLayerIndex;
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//Flags if a yuv layer is animating or below something that is animating
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static bool sIsLayerSkip;
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//Flags if this feature is on.
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static bool sIsModeOn;
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//handle for adreno lib
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static void* egl_lib;
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static functype_eglGetRenderBufferANDROID LINK_eglGetRenderBufferANDROID;
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static functype_eglGetCurrentSurface LINK_eglGetCurrentSurface;
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static unsigned int getRGBRenderingArea (const hwc_layer_list_t *list);
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static void getLayerResolution(const hwc_layer_t* layer,
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unsigned int &width, unsigned int& height);
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};
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class CopybitEngine {
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public:
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~CopybitEngine();
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// API to get copybit engine(non static)
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struct copybit_device_t *getEngine();
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// API to get singleton
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static CopybitEngine* getInstance();
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private:
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CopybitEngine();
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struct copybit_device_t *sEngine;
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static CopybitEngine* sInstance; // singleton
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};
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inline void CopyBit::setStats(int yuvCount, int yuvLayerIndex,
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bool isYuvLayerSkip) {
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sYuvCount = yuvCount;
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sYuvLayerIndex = yuvLayerIndex;
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sIsLayerSkip = isYuvLayerSkip;
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}
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inline int CopyBit::getYuvCount() { return sYuvCount; }
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}; //namespace qhwc
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#endif //HWC_COPYBIT_H
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