HWComposer.cpp revision fb4d5d5726c172adbe62341d99a2148685a98379
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdint.h> 18#include <stdio.h> 19#include <stdlib.h> 20#include <string.h> 21#include <sys/types.h> 22 23#include <utils/Errors.h> 24#include <utils/String8.h> 25#include <utils/Vector.h> 26 27#include <hardware/hardware.h> 28 29#include <cutils/log.h> 30 31#include <EGL/egl.h> 32 33#include "LayerBase.h" 34#include "HWComposer.h" 35#include "SurfaceFlinger.h" 36 37namespace android { 38// --------------------------------------------------------------------------- 39 40HWComposer::HWComposer(const sp<SurfaceFlinger>& flinger) 41 : mFlinger(flinger), 42 mModule(0), mHwc(0), mList(0), mCapacity(0), 43 mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE) 44{ 45 int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule); 46 LOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID); 47 if (err == 0) { 48 err = hwc_open(mModule, &mHwc); 49 LOGE_IF(err, "%s device failed to initialize (%s)", 50 HWC_HARDWARE_COMPOSER, strerror(-err)); 51 if (err == 0) { 52 if (mHwc->registerProcs) { 53 mCBContext.hwc = this; 54 mCBContext.procs.invalidate = &hook_invalidate; 55 mHwc->registerProcs(mHwc, &mCBContext.procs); 56 } 57 } 58 } 59} 60 61HWComposer::~HWComposer() { 62 free(mList); 63 if (mHwc) { 64 hwc_close(mHwc); 65 } 66} 67 68status_t HWComposer::initCheck() const { 69 return mHwc ? NO_ERROR : NO_INIT; 70} 71 72void HWComposer::hook_invalidate(struct hwc_procs* procs) { 73 reinterpret_cast<cb_context *>(procs)->hwc->invalidate(); 74} 75 76void HWComposer::invalidate() { 77 mFlinger->signalEvent(); 78} 79 80void HWComposer::setFrameBuffer(EGLDisplay dpy, EGLSurface sur) { 81 mDpy = (hwc_display_t)dpy; 82 mSur = (hwc_surface_t)sur; 83} 84 85status_t HWComposer::createWorkList(size_t numLayers) { 86 if (mHwc) { 87 if (!mList || mCapacity < numLayers) { 88 free(mList); 89 size_t size = sizeof(hwc_layer_list) + numLayers*sizeof(hwc_layer_t); 90 mList = (hwc_layer_list_t*)malloc(size); 91 mCapacity = numLayers; 92 } 93 mList->flags = HWC_GEOMETRY_CHANGED; 94 mList->numHwLayers = numLayers; 95 } 96 return NO_ERROR; 97} 98 99status_t HWComposer::prepare() const { 100 int err = mHwc->prepare(mHwc, mList); 101 return (status_t)err; 102} 103 104status_t HWComposer::commit() const { 105 int err = mHwc->set(mHwc, mDpy, mSur, mList); 106 if (mList) { 107 mList->flags &= ~HWC_GEOMETRY_CHANGED; 108 } 109 return (status_t)err; 110} 111 112status_t HWComposer::release() const { 113 if (mHwc) { 114 int err = mHwc->set(mHwc, NULL, NULL, NULL); 115 return (status_t)err; 116 } 117 return NO_ERROR; 118} 119 120status_t HWComposer::disable() { 121 if (mHwc) { 122 free(mList); 123 mList = NULL; 124 int err = mHwc->prepare(mHwc, NULL); 125 return (status_t)err; 126 } 127 return NO_ERROR; 128} 129 130size_t HWComposer::getNumLayers() const { 131 return mList ? mList->numHwLayers : 0; 132} 133 134hwc_layer_t* HWComposer::getLayers() const { 135 return mList ? mList->hwLayers : 0; 136} 137 138void HWComposer::dump(String8& result, char* buffer, size_t SIZE, 139 const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const { 140 if (mHwc && mList) { 141 result.append("Hardware Composer state:\n"); 142 143 snprintf(buffer, SIZE, " numHwLayers=%u, flags=%08x\n", 144 mList->numHwLayers, mList->flags); 145 result.append(buffer); 146 result.append( 147 " type | hints | flags | tr | blend | format | source rectangle | crop rectangle name \n" 148 "-----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 149 // " ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 150 for (size_t i=0 ; i<mList->numHwLayers ; i++) { 151 const hwc_layer_t& l(mList->hwLayers[i]); 152 const sp<LayerBase> layer(visibleLayersSortedByZ[i]); 153 int32_t format = -1; 154 if (layer->getLayer() != NULL) { 155 const sp<GraphicBuffer>& buffer(layer->getLayer()->getActiveBuffer()); 156 if (buffer != NULL) { 157 format = buffer->getPixelFormat(); 158 } 159 } 160 snprintf(buffer, SIZE, 161 " %8s | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 162 l.compositionType ? "OVERLAY" : "FB", 163 l.hints, l.flags, l.transform, l.blending, format, 164 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 165 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 166 layer->getName().string()); 167 result.append(buffer); 168 } 169 } 170 if (mHwc && mHwc->common.version >= 1 && mHwc->dump) { 171 mHwc->dump(mHwc, buffer, SIZE); 172 result.append(buffer); 173 } 174} 175 176// --------------------------------------------------------------------------- 177}; // namespace android 178