2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 #include <sys/types.h>
23 #include <utils/Errors.h>
24 #include <utils/String8.h>
25 #include <utils/Vector.h>
27 #include <hardware/hardware.h>
29 #include <cutils/log.h>
33 #include "LayerBase.h"
34 #include "HWComposer.h"
35 #include "SurfaceFlinger.h"
38 // ---------------------------------------------------------------------------
40 HWComposer::HWComposer(const sp<SurfaceFlinger>& flinger)
42 mModule(0), mHwc(0), mList(0), mCapacity(0),
43 mNumOVLayers(0), mNumFBLayers(0),
44 mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE)
46 int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
47 LOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
49 err = hwc_open(mModule, &mHwc);
50 LOGE_IF(err, "%s device failed to initialize (%s)",
51 HWC_HARDWARE_COMPOSER, strerror(-err));
53 if (mHwc->registerProcs) {
54 mCBContext.hwc = this;
55 mCBContext.procs.invalidate = &hook_invalidate;
56 mHwc->registerProcs(mHwc, &mCBContext.procs);
62 HWComposer::~HWComposer() {
69 status_t HWComposer::initCheck() const {
70 return mHwc ? NO_ERROR : NO_INIT;
73 void HWComposer::hook_invalidate(struct hwc_procs* procs) {
74 reinterpret_cast<cb_context *>(procs)->hwc->invalidate();
77 void HWComposer::invalidate() {
78 mFlinger->repaintEverything();
81 void HWComposer::setFrameBuffer(EGLDisplay dpy, EGLSurface sur) {
82 mDpy = (hwc_display_t)dpy;
83 mSur = (hwc_surface_t)sur;
86 status_t HWComposer::createWorkList(size_t numLayers) {
88 if (!mList || mCapacity < numLayers) {
90 size_t size = sizeof(hwc_layer_list) + numLayers*sizeof(hwc_layer_t);
91 mList = (hwc_layer_list_t*)malloc(size);
92 mCapacity = numLayers;
94 mList->flags = HWC_GEOMETRY_CHANGED;
95 mList->numHwLayers = numLayers;
100 status_t HWComposer::prepare() const {
101 int err = mHwc->prepare(mHwc, mList);
102 if (err == NO_ERROR) {
103 size_t numOVLayers = 0;
104 size_t numFBLayers = 0;
105 size_t count = mList->numHwLayers;
106 for (size_t i=0 ; i<count ; i++) {
107 hwc_layer& l(mList->hwLayers[i]);
108 if (l.flags & HWC_SKIP_LAYER) {
109 l.compositionType = HWC_FRAMEBUFFER;
111 switch (l.compositionType) {
115 case HWC_FRAMEBUFFER:
120 mNumOVLayers = numOVLayers;
121 mNumFBLayers = numFBLayers;
123 return (status_t)err;
126 size_t HWComposer::getLayerCount(int type) const {
130 case HWC_FRAMEBUFFER:
136 status_t HWComposer::commit() const {
137 int err = mHwc->set(mHwc, mDpy, mSur, mList);
139 mList->flags &= ~HWC_GEOMETRY_CHANGED;
141 return (status_t)err;
144 status_t HWComposer::release() const {
146 int err = mHwc->set(mHwc, NULL, NULL, NULL);
147 return (status_t)err;
152 status_t HWComposer::disable() {
156 int err = mHwc->prepare(mHwc, NULL);
157 return (status_t)err;
162 size_t HWComposer::getNumLayers() const {
163 return mList ? mList->numHwLayers : 0;
166 hwc_layer_t* HWComposer::getLayers() const {
167 return mList ? mList->hwLayers : 0;
170 void HWComposer::dump(String8& result, char* buffer, size_t SIZE,
171 const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const {
173 result.append("Hardware Composer state:\n");
175 snprintf(buffer, SIZE, " numHwLayers=%u, flags=%08x\n",
176 mList->numHwLayers, mList->flags);
177 result.append(buffer);
179 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n"
180 "----------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n");
181 // " ________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____]
182 for (size_t i=0 ; i<mList->numHwLayers ; i++) {
183 const hwc_layer_t& l(mList->hwLayers[i]);
184 const sp<LayerBase> layer(visibleLayersSortedByZ[i]);
186 if (layer->getLayer() != NULL) {
187 const sp<GraphicBuffer>& buffer(layer->getLayer()->getActiveBuffer());
188 if (buffer != NULL) {
189 format = buffer->getPixelFormat();
192 snprintf(buffer, SIZE,
193 " %8s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n",
194 l.compositionType ? "OVERLAY" : "FB",
195 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format,
196 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom,
197 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
198 layer->getName().string());
199 result.append(buffer);
202 if (mHwc && mHwc->common.version >= 1 && mHwc->dump) {
203 mHwc->dump(mHwc, buffer, SIZE);
204 result.append(buffer);
208 // ---------------------------------------------------------------------------
209 }; // namespace android