The Tor Browser: widget/gonk/nativewindow/GonkNativeWindowClientICS.cpp@b8a032363ba2 (annotated)

widget/gonk/nativewindow/GonkNativeWindowClientICS.cpp@b8a032363ba2 (annotated)

widget/gonk/nativewindow/GonkNativeWindowClientICS.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /*
  * Copyright (C) 2010 The Android Open Source Project
  * Copyright (C) 2012 Mozilla Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 #include "base/basictypes.h"
 #include "CameraCommon.h"
 #include "GonkNativeWindow.h"
 #include "GonkNativeWindowClient.h"
 #include "nsDebug.h"
 /**
  * DOM_CAMERA_LOGI() is enabled in debug builds, and turned on by setting
  * NSPR_LOG_MODULES=Camera:N environment variable, where N >= 3.
  *
  * CNW_LOGE() is always enabled.
  */
 #define CNW_LOGD(...)   DOM_CAMERA_LOGI(__VA_ARGS__)
 #define CNW_LOGE(...)   {(void)printf_stderr(__VA_ARGS__);}
 using namespace android;
 using namespace mozilla::layers;
 GonkNativeWindowClient::GonkNativeWindowClient(const sp<GonkNativeWindow>& window)
   : mNativeWindow(window) {
     GonkNativeWindowClient::init();
 }
 GonkNativeWindowClient::~GonkNativeWindowClient() {
     if (mConnectedToCpu) {
         GonkNativeWindowClient::disconnect(NATIVE_WINDOW_API_CPU);
     }
 }
 void GonkNativeWindowClient::init() {
     // Initialize the ANativeWindow function pointers.
     ANativeWindow::setSwapInterval  = hook_setSwapInterval;
     ANativeWindow::dequeueBuffer    = hook_dequeueBuffer;
     ANativeWindow::cancelBuffer     = hook_cancelBuffer;
     ANativeWindow::lockBuffer       = hook_lockBuffer;
     ANativeWindow::queueBuffer      = hook_queueBuffer;
     ANativeWindow::query            = hook_query;
     ANativeWindow::perform          = hook_perform;
     mReqWidth = 0;
     mReqHeight = 0;
     mReqFormat = 0;
     mReqUsage = 0;
     mTimestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
     mDefaultWidth = 0;
     mDefaultHeight = 0;
     mTransformHint = 0;
     mConnectedToCpu = false;
 }
 int GonkNativeWindowClient::hook_setSwapInterval(ANativeWindow* window, int interval) {
     GonkNativeWindowClient* c = getSelf(window);
     return c->setSwapInterval(interval);
 }
 int GonkNativeWindowClient::hook_dequeueBuffer(ANativeWindow* window,
         ANativeWindowBuffer** buffer) {
     GonkNativeWindowClient* c = getSelf(window);
     return c->dequeueBuffer(buffer);
 }
 int GonkNativeWindowClient::hook_cancelBuffer(ANativeWindow* window,
         ANativeWindowBuffer* buffer) {
     GonkNativeWindowClient* c = getSelf(window);
     return c->cancelBuffer(buffer);
 }
 int GonkNativeWindowClient::hook_lockBuffer(ANativeWindow* window,
         ANativeWindowBuffer* buffer) {
     GonkNativeWindowClient* c = getSelf(window);
     return c->lockBuffer(buffer);
 }
 int GonkNativeWindowClient::hook_queueBuffer(ANativeWindow* window,
         ANativeWindowBuffer* buffer) {
     GonkNativeWindowClient* c = getSelf(window);
     return c->queueBuffer(buffer);
 }
 int GonkNativeWindowClient::hook_query(const ANativeWindow* window,
                                 int what, int* value) {
     const GonkNativeWindowClient* c = getSelf(window);
     return c->query(what, value);
 }
 int GonkNativeWindowClient::hook_perform(ANativeWindow* window, int operation, ...) {
     va_list args;
     va_start(args, operation);
     GonkNativeWindowClient* c = getSelf(window);
     return c->perform(operation, args);
 }
 int GonkNativeWindowClient::setSwapInterval(int interval) {
     return NO_ERROR;
 }
 int GonkNativeWindowClient::dequeueBuffer(android_native_buffer_t** buffer) {
     CNW_LOGD("GonkNativeWindowClient::dequeueBuffer");
     Mutex::Autolock lock(mMutex);
     int buf = -1;
     status_t result = mNativeWindow->dequeueBuffer(&buf, mReqWidth, mReqHeight,
             mReqFormat, mReqUsage);
     if (result < 0) {
         CNW_LOGD("dequeueBuffer: ISurfaceTexture::dequeueBuffer(%d, %d, %d, %d)"
              "failed: %d", mReqWidth, mReqHeight, mReqFormat, mReqUsage,
              result);
         return result;
     }
     sp<GraphicBuffer>& gbuf(mSlots[buf]);
     if (result & ISurfaceTexture::RELEASE_ALL_BUFFERS) {
         freeAllBuffers();
     }
     if ((result & ISurfaceTexture::BUFFER_NEEDS_REALLOCATION) || gbuf == 0) {
         result = mNativeWindow->requestBuffer(buf, &gbuf);
         if (result != NO_ERROR) {
             CNW_LOGE("dequeueBuffer: ISurfaceTexture::requestBuffer failed: %d",
                     result);
             return result;
         }
     }
     *buffer = gbuf.get();
     return OK;
 }
 int GonkNativeWindowClient::cancelBuffer(ANativeWindowBuffer* buffer) {
     CNW_LOGD("GonkNativeWindowClient::cancelBuffer");
     Mutex::Autolock lock(mMutex);
     int i = getSlotFromBufferLocked(buffer);
     if (i < 0) {
         return i;
     }
     mNativeWindow->cancelBuffer(i);
     return OK;
 }
 int GonkNativeWindowClient::getSlotFromBufferLocked(
         android_native_buffer_t* buffer) const {
     bool dumpedState = false;
     for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
         // XXX: Dump the slots whenever we hit a NULL entry while searching for
         // a buffer.
         if (mSlots[i] == NULL) {
             if (!dumpedState) {
                 CNW_LOGD("getSlotFromBufferLocked: encountered NULL buffer in slot %d "
                         "looking for buffer %p", i, buffer->handle);
                 for (int j = 0; j < NUM_BUFFER_SLOTS; j++) {
                     if (mSlots[j] == NULL) {
                         CNW_LOGD("getSlotFromBufferLocked:   %02d: NULL", j);
                     } else {
                         CNW_LOGD("getSlotFromBufferLocked:   %02d: %p", j, mSlots[j]->handle);
                     }
                 }
                 dumpedState = true;
             }
         }
         if (mSlots[i] != NULL && mSlots[i]->handle == buffer->handle) {
             return i;
         }
     }
     CNW_LOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle);
     return BAD_VALUE;
 }
 int GonkNativeWindowClient::lockBuffer(android_native_buffer_t* buffer) {
     CNW_LOGD("GonkNativeWindowClient::lockBuffer");
     Mutex::Autolock lock(mMutex);
     return OK;
 }
 int GonkNativeWindowClient::queueBuffer(android_native_buffer_t* buffer) {
     CNW_LOGD("GonkNativeWindowClient::queueBuffer");
     Mutex::Autolock lock(mMutex);
     int64_t timestamp;
     if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) {
         timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
         CNW_LOGD("GonkNativeWindowClient::queueBuffer making up timestamp: %.2f ms",
              timestamp / 1000000.f);
     } else {
         timestamp = mTimestamp;
     }
     int i = getSlotFromBufferLocked(buffer);
     if (i < 0) {
         return i;
     }
     status_t err = mNativeWindow->queueBuffer(i, timestamp,
             &mDefaultWidth, &mDefaultHeight, &mTransformHint);
     if (err != OK)  {
         CNW_LOGE("queueBuffer: error queuing buffer to GonkNativeWindow, %d", err);
     }
     return err;
 }
 int GonkNativeWindowClient::query(int what, int* value) const {
     CNW_LOGD("query");
     { // scope for the lock
         Mutex::Autolock lock(mMutex);
         switch (what) {
             case NATIVE_WINDOW_FORMAT:
                 if (mReqFormat) {
                     *value = mReqFormat;
                     return NO_ERROR;
                 }
                 break;
             case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER:
                 *value = 0;
                 return NO_ERROR;
             case NATIVE_WINDOW_CONCRETE_TYPE:
                 *value = NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT;
                 return NO_ERROR;
             case NATIVE_WINDOW_DEFAULT_WIDTH:
                 *value = mDefaultWidth;
                 return NO_ERROR;
             case NATIVE_WINDOW_DEFAULT_HEIGHT:
                 *value = mDefaultHeight;
                 return NO_ERROR;
             case NATIVE_WINDOW_TRANSFORM_HINT:
                 *value = mTransformHint;
                 return NO_ERROR;
         }
     }
     return mNativeWindow->query(what, value);
 }
 int GonkNativeWindowClient::perform(int operation, va_list args)
 {
     int res = NO_ERROR;
     switch (operation) {
     case NATIVE_WINDOW_CONNECT:
         // deprecated. must return NO_ERROR.
         break;
     case NATIVE_WINDOW_DISCONNECT:
         // deprecated. must return NO_ERROR.
         break;
     case NATIVE_WINDOW_SET_SCALING_MODE:
         return NO_ERROR;
     case NATIVE_WINDOW_SET_USAGE:
         res = dispatchSetUsage(args);
         break;
     case NATIVE_WINDOW_SET_CROP:
         //not implemented
         break;
     case NATIVE_WINDOW_SET_BUFFER_COUNT:
         res = dispatchSetBufferCount(args);
         break;
     case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
         res = dispatchSetBuffersGeometry(args);
         break;
     case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
         //not implemented
         break;
     case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
         res = dispatchSetBuffersTimestamp(args);
         break;
     case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS:
         res = dispatchSetBuffersDimensions(args);
         break;
     case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
         res = dispatchSetBuffersFormat(args);
         break;
     case NATIVE_WINDOW_LOCK:
         res = INVALID_OPERATION;// not supported
         break;
     case NATIVE_WINDOW_UNLOCK_AND_POST:
         res = INVALID_OPERATION;// not supported
         break;
     case NATIVE_WINDOW_API_CONNECT:
         res = dispatchConnect(args);
         break;
     case NATIVE_WINDOW_API_DISCONNECT:
         res = dispatchDisconnect(args);
         break;
     case NATIVE_WINDOW_SET_BUFFERS_SIZE:
         //not implemented
         break;
     default:
         res = NAME_NOT_FOUND;
         break;
     }
     return res;
 }
 int GonkNativeWindowClient::dispatchConnect(va_list args) {
     int api = va_arg(args, int);
     return connect(api);
 }
 int GonkNativeWindowClient::dispatchDisconnect(va_list args) {
     int api = va_arg(args, int);
     return disconnect(api);
 }
 int GonkNativeWindowClient::dispatchSetUsage(va_list args) {
     int usage = va_arg(args, int);
     return setUsage(usage);
 }
 int GonkNativeWindowClient::dispatchSetBufferCount(va_list args) {
     size_t bufferCount = va_arg(args, size_t);
     return setBufferCount(bufferCount);
 }
 int GonkNativeWindowClient::dispatchSetBuffersGeometry(va_list args) {
     int w = va_arg(args, int);
     int h = va_arg(args, int);
     int f = va_arg(args, int);
     int err = setBuffersDimensions(w, h);
     if (err != 0) {
         return err;
     }
     return setBuffersFormat(f);
 }
 int GonkNativeWindowClient::dispatchSetBuffersDimensions(va_list args) {
     int w = va_arg(args, int);
     int h = va_arg(args, int);
     return setBuffersDimensions(w, h);
 }
 int GonkNativeWindowClient::dispatchSetBuffersFormat(va_list args) {
     int f = va_arg(args, int);
     return setBuffersFormat(f);
 }
 int GonkNativeWindowClient::dispatchSetBuffersTimestamp(va_list args) {
     int64_t timestamp = va_arg(args, int64_t);
     return setBuffersTimestamp(timestamp);
 }
 int GonkNativeWindowClient::connect(int api) {
     CNW_LOGD("GonkNativeWindowClient::connect");
     Mutex::Autolock lock(mMutex);
     int err = mNativeWindow->connect(api,
             &mDefaultWidth, &mDefaultHeight, &mTransformHint);
     if (!err && api == NATIVE_WINDOW_API_CPU) {
         mConnectedToCpu = true;
     }
     return err;
 }
 int GonkNativeWindowClient::disconnect(int api) {
     CNW_LOGD("GonkNativeWindowClient::disconnect");
     Mutex::Autolock lock(mMutex);
     freeAllBuffers();
     int err = mNativeWindow->disconnect(api);
     if (!err) {
         mReqFormat = 0;
         mReqWidth = 0;
         mReqHeight = 0;
         mReqUsage = 0;
         if (api == NATIVE_WINDOW_API_CPU) {
             mConnectedToCpu = false;
         }
     }
     return err;
 }
 int GonkNativeWindowClient::setUsage(uint32_t reqUsage)
 {
     CNW_LOGD("GonkNativeWindowClient::setUsage");
     Mutex::Autolock lock(mMutex);
     mReqUsage = reqUsage;
     return OK;
 }
 int GonkNativeWindowClient::setBufferCount(int bufferCount)
 {
     CNW_LOGD("GonkNativeWindowClient::setBufferCount");
     Mutex::Autolock lock(mMutex);
     status_t err = mNativeWindow->setBufferCount(bufferCount);
     if (err == NO_ERROR) {
         freeAllBuffers();
     }
     return err;
 }
 int GonkNativeWindowClient::setBuffersDimensions(int w, int h)
 {
     CNW_LOGD("GonkNativeWindowClient::setBuffersDimensions");
     Mutex::Autolock lock(mMutex);
     if (w<0 || h<0)
         return BAD_VALUE;
     if ((w && !h) || (!w && h))
         return BAD_VALUE;
     mReqWidth = w;
     mReqHeight = h;
     status_t err = OK;
     return err;
 }
 int GonkNativeWindowClient::setBuffersFormat(int format)
 {
     CNW_LOGD("GonkNativeWindowClient::setBuffersFormat");
     Mutex::Autolock lock(mMutex);
     if (format<0)
         return BAD_VALUE;
     mReqFormat = format;
     return NO_ERROR;
 }
 int GonkNativeWindowClient::setBuffersTimestamp(int64_t timestamp)
 {
     CNW_LOGD("GonkNativeWindowClient::setBuffersTimestamp");
     Mutex::Autolock lock(mMutex);
     mTimestamp = timestamp;
     return NO_ERROR;
 }
 void GonkNativeWindowClient::freeAllBuffers() {
     for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
         mSlots[i] = 0;
     }
 }

The Tor Browser / annotate

widget/gonk/nativewindow/GonkNativeWindowClientICS.cpp@b8a032363ba2 (annotated)

widget/gonk/nativewindow/GonkNativeWindowClientICS.cpp