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