1 /*
2 * Copyright (C) 2013 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 #define ATRACE_TAG ATRACE_TAG_RS
18
19 #include "rsContext.h"
20 #include "rsAllocation.h"
21 #include "rsAdapter.h"
22 #include "rs_hal.h"
23
24 #include <cutils/compiler.h>
25 #include <utils/Log.h>
26 #include "rsGrallocConsumer.h"
27 #include <gui/BufferItem.h>
28 #include <ui/GraphicBuffer.h>
29
30
31 namespace android {
32 namespace renderscript {
33
GrallocConsumer(Allocation * a,const sp<IGraphicBufferConsumer> & bq,int flags)34 GrallocConsumer::GrallocConsumer(Allocation *a, const sp<IGraphicBufferConsumer>& bq, int flags) :
35 ConsumerBase(bq, true)
36 {
37 mAlloc = a;
38 if (flags == 0) {
39 flags = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_RENDERSCRIPT;
40 } else {
41 flags |= GRALLOC_USAGE_RENDERSCRIPT;
42 }
43 mConsumer->setConsumerUsageBits(flags);
44 mConsumer->setMaxAcquiredBufferCount(2);
45
46 uint32_t y = a->mHal.drvState.lod[0].dimY;
47 if (y < 1) y = 1;
48 mConsumer->setDefaultBufferSize(a->mHal.drvState.lod[0].dimX, y);
49
50 if (a->mHal.state.yuv) {
51 bq->setDefaultBufferFormat(a->mHal.state.yuv);
52 }
53 //mBufferQueue->setConsumerName(name);
54 }
55
~GrallocConsumer()56 GrallocConsumer::~GrallocConsumer() {
57 // ConsumerBase destructor does all the work.
58 }
59
60
61
lockNextBuffer()62 status_t GrallocConsumer::lockNextBuffer() {
63 Mutex::Autolock _l(mMutex);
64 status_t err;
65
66 if (mAcquiredBuffer.mSlot != BufferQueue::INVALID_BUFFER_SLOT) {
67 err = releaseAcquiredBufferLocked();
68 if (err) {
69 return err;
70 }
71 }
72
73 BufferItem b;
74
75 err = acquireBufferLocked(&b, 0);
76 if (err != OK) {
77 if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
78 return BAD_VALUE;
79 } else {
80 ALOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
81 return err;
82 }
83 }
84
85 int buf = b.mBuf;
86
87 if (b.mFence.get()) {
88 err = b.mFence->waitForever("GrallocConsumer::lockNextBuffer");
89 if (err != OK) {
90 ALOGE("Failed to wait for fence of acquired buffer: %s (%d)",
91 strerror(-err), err);
92 return err;
93 }
94 }
95
96 void *bufferPointer = nullptr;
97 android_ycbcr ycbcr = android_ycbcr();
98
99 if (mSlots[buf].mGraphicBuffer->getPixelFormat() ==
100 HAL_PIXEL_FORMAT_YCbCr_420_888) {
101 err = mSlots[buf].mGraphicBuffer->lockYCbCr(
102 GraphicBuffer::USAGE_SW_READ_OFTEN,
103 b.mCrop,
104 &ycbcr);
105
106 if (err != OK) {
107 ALOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)",
108 strerror(-err), err);
109 return err;
110 }
111 bufferPointer = ycbcr.y;
112 } else {
113 err = mSlots[buf].mGraphicBuffer->lock(
114 GraphicBuffer::USAGE_SW_READ_OFTEN,
115 b.mCrop,
116 &bufferPointer);
117
118 if (err != OK) {
119 ALOGE("Unable to lock buffer for CPU reading: %s (%d)",
120 strerror(-err), err);
121 return err;
122 }
123 }
124
125 size_t lockedIdx = 0;
126 assert(mAcquiredBuffer.mSlot == BufferQueue::INVALID_BUFFER_SLOT);
127
128 mAcquiredBuffer.mSlot = buf;
129 mAcquiredBuffer.mBufferPointer = bufferPointer;
130 mAcquiredBuffer.mGraphicBuffer = mSlots[buf].mGraphicBuffer;
131
132 mAlloc->mHal.drvState.lod[0].mallocPtr = reinterpret_cast<uint8_t*>(bufferPointer);
133 mAlloc->mHal.drvState.lod[0].stride = mSlots[buf].mGraphicBuffer->getStride() *
134 mAlloc->mHal.state.type->getElementSizeBytes();
135 mAlloc->mHal.state.nativeBuffer = mAcquiredBuffer.mGraphicBuffer->getNativeBuffer();
136 mAlloc->mHal.state.timestamp = b.mTimestamp;
137
138 assert(mAlloc->mHal.drvState.lod[0].dimX ==
139 mSlots[buf].mGraphicBuffer->getWidth());
140 assert(mAlloc->mHal.drvState.lod[0].dimY ==
141 mSlots[buf].mGraphicBuffer->getHeight());
142
143 //mAlloc->format = mSlots[buf].mGraphicBuffer->getPixelFormat();
144
145 //mAlloc->crop = b.mCrop;
146 //mAlloc->transform = b.mTransform;
147 //mAlloc->scalingMode = b.mScalingMode;
148 //mAlloc->frameNumber = b.mFrameNumber;
149
150 if (mAlloc->mHal.state.yuv == HAL_PIXEL_FORMAT_YCbCr_420_888) {
151 mAlloc->mHal.drvState.lod[1].mallocPtr = ycbcr.cb;
152 mAlloc->mHal.drvState.lod[2].mallocPtr = ycbcr.cr;
153
154 mAlloc->mHal.drvState.lod[0].stride = ycbcr.ystride;
155 mAlloc->mHal.drvState.lod[1].stride = ycbcr.cstride;
156 mAlloc->mHal.drvState.lod[2].stride = ycbcr.cstride;
157
158 mAlloc->mHal.drvState.yuv.shift = 1;
159 mAlloc->mHal.drvState.yuv.step = ycbcr.chroma_step;
160 }
161
162 return OK;
163 }
164
unlockBuffer()165 status_t GrallocConsumer::unlockBuffer() {
166 Mutex::Autolock _l(mMutex);
167 return releaseAcquiredBufferLocked();
168 }
169
releaseAcquiredBufferLocked()170 status_t GrallocConsumer::releaseAcquiredBufferLocked() {
171 status_t err;
172
173 err = mAcquiredBuffer.mGraphicBuffer->unlock();
174 if (err != OK) {
175 ALOGE("%s: Unable to unlock graphic buffer", __FUNCTION__);
176 return err;
177 }
178 int buf = mAcquiredBuffer.mSlot;
179
180 // release the buffer if it hasn't already been freed by the BufferQueue.
181 // This can happen, for example, when the producer of this buffer
182 // disconnected after this buffer was acquired.
183 if (CC_LIKELY(mAcquiredBuffer.mGraphicBuffer ==
184 mSlots[buf].mGraphicBuffer)) {
185 releaseBufferLocked(
186 buf, mAcquiredBuffer.mGraphicBuffer,
187 EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
188 }
189
190 mAcquiredBuffer.mSlot = BufferQueue::INVALID_BUFFER_SLOT;
191 mAcquiredBuffer.mBufferPointer = nullptr;
192 mAcquiredBuffer.mGraphicBuffer.clear();
193 return OK;
194 }
195
196 } // namespace renderscript
197 } // namespace android
198
199