SurfaceTexture.cpp revision c5f94d8a4779050125145396ca83fbc862c7ed6b
168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis/* 268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * Copyright (C) 2010 The Android Open Source Project 368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * 468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * Licensed under the Apache License, Version 2.0 (the "License"); 568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * you may not use this file except in compliance with the License. 668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * You may obtain a copy of the License at 768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * 868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * http://www.apache.org/licenses/LICENSE-2.0 968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * 1068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * Unless required by applicable law or agreed to in writing, software 1168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * distributed under the License is distributed on an "AS IS" BASIS, 1268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * See the License for the specific language governing permissions and 1468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis * limitations under the License. 1568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis */ 1668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 1768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#define LOG_TAG "SurfaceTexture" 187dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis//#define LOG_NDEBUG 0 1968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 2068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#define GL_GLEXT_PROTOTYPES 2168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#define EGL_EGLEXT_PROTOTYPES 2268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 2368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <EGL/egl.h> 2468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <EGL/eglext.h> 2568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <GLES2/gl2.h> 2668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <GLES2/gl2ext.h> 2768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 2868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <gui/SurfaceTexture.h> 2968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 3068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <surfaceflinger/ISurfaceComposer.h> 3168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <surfaceflinger/SurfaceComposerClient.h> 32f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis#include <surfaceflinger/IGraphicBufferAlloc.h> 3368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 3468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis#include <utils/Log.h> 3568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 3668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisnamespace android { 3768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 38b598fb90727be45e926a11abefc319819a733540Jamie Gennis// Transform matrices 39b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxIdentity[16] = { 40b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 0, 0, 0, 41b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 1, 0, 0, 42b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 43b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 0, 1, 44b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 45b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxFlipH[16] = { 46b598fb90727be45e926a11abefc319819a733540Jamie Gennis -1, 0, 0, 0, 47b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 1, 0, 0, 48b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 49b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 0, 0, 1, 50b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 51b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxFlipV[16] = { 52b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 0, 0, 0, 53b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, -1, 0, 0, 54b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 55b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 1, 0, 1, 56b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 57b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxRot90[16] = { 58b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 1, 0, 0, 59b598fb90727be45e926a11abefc319819a733540Jamie Gennis -1, 0, 0, 0, 60b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 61b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 0, 0, 1, 62b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 63b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxRot180[16] = { 64b598fb90727be45e926a11abefc319819a733540Jamie Gennis -1, 0, 0, 0, 65b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, -1, 0, 0, 66b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 67b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 1, 0, 1, 68b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 69b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic float mtxRot270[16] = { 70b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, -1, 0, 0, 71b598fb90727be45e926a11abefc319819a733540Jamie Gennis 1, 0, 0, 0, 72b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 73b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 1, 0, 1, 74b598fb90727be45e926a11abefc319819a733540Jamie Gennis}; 75b598fb90727be45e926a11abefc319819a733540Jamie Gennis 76b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic void mtxMul(float out[16], const float a[16], const float b[16]); 77b598fb90727be45e926a11abefc319819a733540Jamie Gennis 7868e4a7ac849b681b1fb769857fc04f64262480c4Jamie GennisSurfaceTexture::SurfaceTexture(GLuint tex) : 79c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mBufferCount(MIN_BUFFER_SLOTS), 80c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mCurrentTexture(INVALID_BUFFER_SLOT), 81c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mCurrentTransform(0), 82c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mCurrentTimestamp(0), 83c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mLastQueued(INVALID_BUFFER_SLOT), 84c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mLastQueuedTransform(0), 85c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mLastQueuedTimestamp(0), 86c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mNextTransform(0), 87c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mTexName(tex) { 887dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::SurfaceTexture"); 89fd804f31a36c31661859b53bbee1bb408462ddcaJamie Gennis for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { 90fd804f31a36c31661859b53bbee1bb408462ddcaJamie Gennis mSlots[i].mEglImage = EGL_NO_IMAGE_KHR; 91fd804f31a36c31661859b53bbee1bb408462ddcaJamie Gennis mSlots[i].mEglDisplay = EGL_NO_DISPLAY; 92fd804f31a36c31661859b53bbee1bb408462ddcaJamie Gennis mSlots[i].mOwnedByClient = false; 93fd804f31a36c31661859b53bbee1bb408462ddcaJamie Gennis } 94f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis sp<ISurfaceComposer> composer(ComposerService::getComposerService()); 95f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mGraphicBufferAlloc = composer->createGraphicBufferAlloc(); 9668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 9768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 9868e4a7ac849b681b1fb769857fc04f64262480c4Jamie GennisSurfaceTexture::~SurfaceTexture() { 997dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::~SurfaceTexture"); 10068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis freeAllBuffers(); 10168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 10268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 10368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisstatus_t SurfaceTexture::setBufferCount(int bufferCount) { 1047dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::setBufferCount"); 10596dcc978430f0daf6d73fee96a01779ed537a0ceJamie Gennis 10696dcc978430f0daf6d73fee96a01779ed537a0ceJamie Gennis if (bufferCount < MIN_BUFFER_SLOTS) { 10796dcc978430f0daf6d73fee96a01779ed537a0ceJamie Gennis return BAD_VALUE; 10896dcc978430f0daf6d73fee96a01779ed537a0ceJamie Gennis } 10996dcc978430f0daf6d73fee96a01779ed537a0ceJamie Gennis 11068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 11168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis freeAllBuffers(); 11268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mBufferCount = bufferCount; 113d369dc42506ec003f1839bb9e27edada411324b5Jamie Gennis mCurrentTexture = INVALID_BUFFER_SLOT; 114d369dc42506ec003f1839bb9e27edada411324b5Jamie Gennis mLastQueued = INVALID_BUFFER_SLOT; 11568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 11668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 11768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 11868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennissp<GraphicBuffer> SurfaceTexture::requestBuffer(int buf, 11968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis uint32_t w, uint32_t h, uint32_t format, uint32_t usage) { 1207dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::requestBuffer"); 12168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 12268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (buf < 0 || mBufferCount <= buf) { 12368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("requestBuffer: slot index out of range [0, %d]: %d", 12468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mBufferCount, buf); 12568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return 0; 12668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 12768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis usage |= GraphicBuffer::USAGE_HW_TEXTURE; 128f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis sp<GraphicBuffer> graphicBuffer( 129f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mGraphicBufferAlloc->createGraphicBuffer(w, h, format, usage)); 13068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (graphicBuffer == 0) { 13168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("requestBuffer: SurfaceComposer::createGraphicBuffer failed"); 13268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } else { 13368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[buf].mGraphicBuffer = graphicBuffer; 13468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (mSlots[buf].mEglImage != EGL_NO_IMAGE_KHR) { 13568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis eglDestroyImageKHR(mSlots[buf].mEglDisplay, mSlots[buf].mEglImage); 13668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[buf].mEglImage = EGL_NO_IMAGE_KHR; 13768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[buf].mEglDisplay = EGL_NO_DISPLAY; 13868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 139f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mAllocdBuffers.add(graphicBuffer); 14068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 14168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return graphicBuffer; 14268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 14368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 14468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisstatus_t SurfaceTexture::dequeueBuffer(int *buf) { 1457dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::dequeueBuffer"); 14668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 14768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis int found = INVALID_BUFFER_SLOT; 14868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis for (int i = 0; i < mBufferCount; i++) { 149a7eacc148adec1ee26636a0c727ceefa9e012ba6Jamie Gennis if (!mSlots[i].mOwnedByClient && i != mCurrentTexture && i != mLastQueued) { 15068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[i].mOwnedByClient = true; 15168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis found = i; 15268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis break; 15368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 15468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 15568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (found == INVALID_BUFFER_SLOT) { 15668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return -EBUSY; 15768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 15868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis *buf = found; 15968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 16068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 16168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 162c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvalastatus_t SurfaceTexture::queueBuffer(int buf, int64_t timestamp) { 1637dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::queueBuffer"); 16468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 16568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (buf < 0 || mBufferCount <= buf) { 16668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("queueBuffer: slot index out of range [0, %d]: %d", 16768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mBufferCount, buf); 16868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return -EINVAL; 16968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } else if (!mSlots[buf].mOwnedByClient) { 17068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("queueBuffer: slot %d is not owned by the client", buf); 17168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return -EINVAL; 17268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } else if (mSlots[buf].mGraphicBuffer == 0) { 17368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("queueBuffer: slot %d was enqueued without requesting a buffer", 17468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis buf); 17568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return -EINVAL; 17668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 17768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[buf].mOwnedByClient = false; 17868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mLastQueued = buf; 179b598fb90727be45e926a11abefc319819a733540Jamie Gennis mLastQueuedCrop = mNextCrop; 180b598fb90727be45e926a11abefc319819a733540Jamie Gennis mLastQueuedTransform = mNextTransform; 181c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mLastQueuedTimestamp = timestamp; 182376590d668e22a918439877b55faf075427b13f3Jamie Gennis if (mFrameAvailableListener != 0) { 183376590d668e22a918439877b55faf075427b13f3Jamie Gennis mFrameAvailableListener->onFrameAvailable(); 184376590d668e22a918439877b55faf075427b13f3Jamie Gennis } 18568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 18668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 18768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 18868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisvoid SurfaceTexture::cancelBuffer(int buf) { 1897dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::cancelBuffer"); 19068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 19168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (buf < 0 || mBufferCount <= buf) { 19268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("cancelBuffer: slot index out of range [0, %d]: %d", mBufferCount, 19368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis buf); 19468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return; 19568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } else if (!mSlots[buf].mOwnedByClient) { 19668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("cancelBuffer: slot %d is not owned by the client", buf); 19768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return; 19868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 19968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[buf].mOwnedByClient = false; 20068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 20168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 202b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatus_t SurfaceTexture::setCrop(const Rect& crop) { 2037dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::setCrop"); 20468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 205b598fb90727be45e926a11abefc319819a733540Jamie Gennis mNextCrop = crop; 20668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 20768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 20868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 20968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisstatus_t SurfaceTexture::setTransform(uint32_t transform) { 2107dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::setTransform"); 21168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 212b598fb90727be45e926a11abefc319819a733540Jamie Gennis mNextTransform = transform; 21368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 21468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 21568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 21668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisstatus_t SurfaceTexture::updateTexImage() { 2177dc00d5eb27de41f93a7e232b3cd374c84eb77d1Jamie Gennis LOGV("SurfaceTexture::updateTexImage"); 21868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis Mutex::Autolock lock(mMutex); 21968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 22068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis // We always bind the texture even if we don't update its contents. 22168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTexName); 22268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 22368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis // Initially both mCurrentTexture and mLastQueued are INVALID_BUFFER_SLOT, 22468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis // so this check will fail until a buffer gets queued. 22568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (mCurrentTexture != mLastQueued) { 226b598fb90727be45e926a11abefc319819a733540Jamie Gennis // Update the GL texture object. 227f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis EGLImageKHR image = mSlots[mLastQueued].mEglImage; 22868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (image == EGL_NO_IMAGE_KHR) { 22968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGLDisplay dpy = eglGetCurrentDisplay(); 230f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis sp<GraphicBuffer> graphicBuffer = mSlots[mLastQueued].mGraphicBuffer; 23168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis image = createImage(dpy, graphicBuffer); 232f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mSlots[mLastQueued].mEglImage = image; 233f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mSlots[mLastQueued].mEglDisplay = dpy; 23468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 23579d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis 23679d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis GLint error; 23779d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis while ((error = glGetError()) != GL_NO_ERROR) { 23879d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis LOGE("GL error cleared before updating SurfaceTexture: %#04x", error); 23979d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis } 24068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)image); 24179d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis bool failed = false; 24279d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis while ((error = glGetError()) != GL_NO_ERROR) { 24368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("error binding external texture image %p (slot %d): %#04x", 244f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis image, mLastQueued, error); 24579d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis failed = true; 24679d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis } 24779d01fe8232c67a18aeb8784c2b8783358ec4e44Jamie Gennis if (failed) { 24868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return -EINVAL; 24968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 250f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis 251f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis // Update the SurfaceTexture state. 252f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mCurrentTexture = mLastQueued; 253f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mCurrentTextureBuf = mSlots[mCurrentTexture].mGraphicBuffer; 254f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mCurrentCrop = mLastQueuedCrop; 255f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mCurrentTransform = mLastQueuedTransform; 256c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala mCurrentTimestamp = mLastQueuedTimestamp; 25768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 25868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return OK; 25968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 26068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 261b598fb90727be45e926a11abefc319819a733540Jamie Gennisvoid SurfaceTexture::getTransformMatrix(float mtx[16]) { 262c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala LOGV("SurfaceTexture::getTransformMatrix"); 263b598fb90727be45e926a11abefc319819a733540Jamie Gennis Mutex::Autolock lock(mMutex); 264b598fb90727be45e926a11abefc319819a733540Jamie Gennis 2650fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float xform[16]; 2660fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis for (int i = 0; i < 16; i++) { 2670fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis xform[i] = mtxIdentity[i]; 2680fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 2690fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_H) { 2700fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float result[16]; 2710fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis mtxMul(result, xform, mtxFlipH); 2720fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis for (int i = 0; i < 16; i++) { 2730fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis xform[i] = result[i]; 2740fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 2750fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 2760fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_V) { 2770fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float result[16]; 2780fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis mtxMul(result, xform, mtxFlipV); 2790fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis for (int i = 0; i < 16; i++) { 2800fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis xform[i] = result[i]; 2810fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 2820fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 2830fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) { 2840fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float result[16]; 2850fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis mtxMul(result, xform, mtxRot90); 2860fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis for (int i = 0; i < 16; i++) { 2870fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis xform[i] = result[i]; 2880fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 289b598fb90727be45e926a11abefc319819a733540Jamie Gennis } 290b598fb90727be45e926a11abefc319819a733540Jamie Gennis 291b598fb90727be45e926a11abefc319819a733540Jamie Gennis sp<GraphicBuffer>& buf(mSlots[mCurrentTexture].mGraphicBuffer); 2920fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float tx, ty, sx, sy; 2930fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis if (!mCurrentCrop.isEmpty()) { 294f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // In order to prevent bilinear sampling at the of the crop rectangle we 295f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // may need to shrink it by 2 texels in each direction. Normally this 296f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // would just need to take 1/2 a texel off each end, but because the 297f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // chroma channels will likely be subsampled we need to chop off a whole 298f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // texel. This will cause artifacts if someone does nearest sampling 299f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // with 1:1 pixel:texel ratio, but it's impossible to simultaneously 300f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // accomodate the bilinear and nearest sampling uses. 301f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // 302f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // If nearest sampling turns out to be a desirable usage of these 303f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // textures then we could add the ability to switch a SurfaceTexture to 304f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // nearest-mode. Preferably, however, the image producers (video 305f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // decoder, camera, etc.) would simply not use a crop rectangle (or at 306f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // least not tell the framework about it) so that the GPU can do the 307f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis // correct edge behavior. 308f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis int xshrink = 0, yshrink = 0; 309f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis if (mCurrentCrop.left > 0) { 310f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis tx = float(mCurrentCrop.left + 1) / float(buf->getWidth()); 311f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis xshrink++; 312f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } else { 313f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis tx = 0.0f; 314f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } 315f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis if (mCurrentCrop.right < buf->getWidth()) { 316f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis xshrink++; 317f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } 318f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis if (mCurrentCrop.bottom < buf->getHeight()) { 319f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis ty = (float(buf->getHeight() - mCurrentCrop.bottom) + 1.0f) / 320f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis float(buf->getHeight()); 321f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis yshrink++; 322f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } else { 323f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis ty = 0.0f; 324f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } 325f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis if (mCurrentCrop.top > 0) { 326f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis yshrink++; 327f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis } 328f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis sx = float(mCurrentCrop.width() - xshrink) / float(buf->getWidth()); 329f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis sy = float(mCurrentCrop.height() - yshrink) / float(buf->getHeight()); 3300fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } else { 3310fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis tx = 0.0f; 3320fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis ty = 0.0f; 3330fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis sx = 1.0f; 3340fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis sy = 1.0f; 3350fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis } 336b598fb90727be45e926a11abefc319819a733540Jamie Gennis float crop[16] = { 3370fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis sx, 0, 0, 0, 3380fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis 0, sy, 0, 0, 339b598fb90727be45e926a11abefc319819a733540Jamie Gennis 0, 0, 1, 0, 340f3cedb602197a6255e3a7b005cc368577d75bf3aJamie Gennis tx, ty, 0, 1, 341b598fb90727be45e926a11abefc319819a733540Jamie Gennis }; 342b598fb90727be45e926a11abefc319819a733540Jamie Gennis 3430fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis float mtxBeforeFlipV[16]; 3440fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis mtxMul(mtxBeforeFlipV, crop, xform); 3450fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis 3460fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis // SurfaceFlinger expects the top of its window textures to be at a Y 3470fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis // coordinate of 0, so SurfaceTexture must behave the same way. We don't 3480fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis // want to expose this to applications, however, so we must add an 3490fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis // additional vertical flip to the transform after all the other transforms. 3500fb736c0937d9d65001e0176d90e1011226594bfJamie Gennis mtxMul(mtx, mtxFlipV, mtxBeforeFlipV); 351b598fb90727be45e926a11abefc319819a733540Jamie Gennis} 352b598fb90727be45e926a11abefc319819a733540Jamie Gennis 353c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvalansecs_t SurfaceTexture::getTimestamp() { 354c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala LOGV("SurfaceTexture::getTimestamp"); 355c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala Mutex::Autolock lock(mMutex); 356c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala return mCurrentTimestamp; 357c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala} 358c5f94d8a4779050125145396ca83fbc862c7ed6bEino-Ville Talvala 359376590d668e22a918439877b55faf075427b13f3Jamie Gennisvoid SurfaceTexture::setFrameAvailableListener( 360376590d668e22a918439877b55faf075427b13f3Jamie Gennis const sp<FrameAvailableListener>& l) { 361376590d668e22a918439877b55faf075427b13f3Jamie Gennis LOGV("SurfaceTexture::setFrameAvailableListener"); 362376590d668e22a918439877b55faf075427b13f3Jamie Gennis Mutex::Autolock lock(mMutex); 363376590d668e22a918439877b55faf075427b13f3Jamie Gennis mFrameAvailableListener = l; 364376590d668e22a918439877b55faf075427b13f3Jamie Gennis} 365376590d668e22a918439877b55faf075427b13f3Jamie Gennis 36683bac216a7ba8493a7916e40b2555e73c3a5cc1aJamie Gennissp<IBinder> SurfaceTexture::getAllocator() { 36783bac216a7ba8493a7916e40b2555e73c3a5cc1aJamie Gennis LOGV("SurfaceTexture::getAllocator"); 36883bac216a7ba8493a7916e40b2555e73c3a5cc1aJamie Gennis return mGraphicBufferAlloc->asBinder(); 36983bac216a7ba8493a7916e40b2555e73c3a5cc1aJamie Gennis} 37083bac216a7ba8493a7916e40b2555e73c3a5cc1aJamie Gennis 37168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennisvoid SurfaceTexture::freeAllBuffers() { 37268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { 37368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[i].mGraphicBuffer = 0; 37468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[i].mOwnedByClient = false; 37568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (mSlots[i].mEglImage != EGL_NO_IMAGE_KHR) { 37668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis eglDestroyImageKHR(mSlots[i].mEglDisplay, mSlots[i].mEglImage); 37768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[i].mEglImage = EGL_NO_IMAGE_KHR; 37868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis mSlots[i].mEglDisplay = EGL_NO_DISPLAY; 37968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 38068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 381f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis 382f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis int exceptBuf = -1; 383f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis for (size_t i = 0; i < mAllocdBuffers.size(); i++) { 384f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis if (mAllocdBuffers[i] == mCurrentTextureBuf) { 385f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis exceptBuf = i; 386f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis break; 387f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis } 388f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis } 389f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mAllocdBuffers.clear(); 390f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis if (exceptBuf >= 0) { 391f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mAllocdBuffers.add(mCurrentTextureBuf); 392f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis } 393f7acf162f8d682c6ebc9af41ca76795b79509193Jamie Gennis mGraphicBufferAlloc->freeAllGraphicBuffersExcept(exceptBuf); 39468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 39568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 39668e4a7ac849b681b1fb769857fc04f64262480c4Jamie GennisEGLImageKHR SurfaceTexture::createImage(EGLDisplay dpy, 39768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis const sp<GraphicBuffer>& graphicBuffer) { 39868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer(); 39968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGLint attrs[] = { 40068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, 40168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGL_NONE, 40268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis }; 40368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGLImageKHR image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, 40468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGL_NATIVE_BUFFER_ANDROID, cbuf, attrs); 40568e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis EGLint error = eglGetError(); 40668e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis if (error != EGL_SUCCESS) { 40768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("error creating EGLImage: %#x", error); 40868e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } else if (image == EGL_NO_IMAGE_KHR) { 40968e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis LOGE("no error reported, but no image was returned by " 41068e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis "eglCreateImageKHR"); 41168e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis } 41268e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis return image; 41368e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis} 41468e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis 415b598fb90727be45e926a11abefc319819a733540Jamie Gennisstatic void mtxMul(float out[16], const float a[16], const float b[16]) { 416b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[0] = a[0]*b[0] + a[4]*b[1] + a[8]*b[2] + a[12]*b[3]; 417b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[1] = a[1]*b[0] + a[5]*b[1] + a[9]*b[2] + a[13]*b[3]; 418b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[2] = a[2]*b[0] + a[6]*b[1] + a[10]*b[2] + a[14]*b[3]; 419b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[3] = a[3]*b[0] + a[7]*b[1] + a[11]*b[2] + a[15]*b[3]; 420b598fb90727be45e926a11abefc319819a733540Jamie Gennis 421b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[4] = a[0]*b[4] + a[4]*b[5] + a[8]*b[6] + a[12]*b[7]; 422b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[5] = a[1]*b[4] + a[5]*b[5] + a[9]*b[6] + a[13]*b[7]; 423b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[6] = a[2]*b[4] + a[6]*b[5] + a[10]*b[6] + a[14]*b[7]; 424b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[7] = a[3]*b[4] + a[7]*b[5] + a[11]*b[6] + a[15]*b[7]; 425b598fb90727be45e926a11abefc319819a733540Jamie Gennis 426b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[8] = a[0]*b[8] + a[4]*b[9] + a[8]*b[10] + a[12]*b[11]; 427b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[9] = a[1]*b[8] + a[5]*b[9] + a[9]*b[10] + a[13]*b[11]; 428b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[10] = a[2]*b[8] + a[6]*b[9] + a[10]*b[10] + a[14]*b[11]; 429b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[11] = a[3]*b[8] + a[7]*b[9] + a[11]*b[10] + a[15]*b[11]; 430b598fb90727be45e926a11abefc319819a733540Jamie Gennis 431b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[12] = a[0]*b[12] + a[4]*b[13] + a[8]*b[14] + a[12]*b[15]; 432b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[13] = a[1]*b[12] + a[5]*b[13] + a[9]*b[14] + a[13]*b[15]; 433b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[14] = a[2]*b[12] + a[6]*b[13] + a[10]*b[14] + a[14]*b[15]; 434b598fb90727be45e926a11abefc319819a733540Jamie Gennis out[15] = a[3]*b[12] + a[7]*b[13] + a[11]*b[14] + a[15]*b[15]; 435b598fb90727be45e926a11abefc319819a733540Jamie Gennis} 436b598fb90727be45e926a11abefc319819a733540Jamie Gennis 43768e4a7ac849b681b1fb769857fc04f64262480c4Jamie Gennis}; // namespace android 438