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Код Задачи Пакеты Проекты Релизы Вики Активность

Bug 803471 - Part 5a - Split GonkNativeWindow to GonkNativeWindow and GonkNativeWindowClient. r=kchen, a=leo+

This commit is contained in:
Sotaro Ikeda 2013-03-08 14:43:32 -05:00
Родитель ee0bd67c4a
Коммит c7b03c5b36
4 изменённых файлов: 884 добавлений и 348 удалений
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510
dom/camera/GonkNativeWindow.cpp
Просмотреть файл

@ -1,5 +1,3 @@
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=4 et sw=4 tw=80: */
/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012 Mozilla Foundation
@ -37,20 +35,19 @@
using namespace android;
using namespace mozilla::layers;
GonkNativeWindow::GonkNativeWindow(GonkNativeWindowNewFrameCallback* aCallback)
: mNewFrameCallback(aCallback)
{
GonkNativeWindow::init();
GonkNativeWindow::GonkNativeWindow() :
mDefaultWidth(1),
mDefaultHeight(1),
mPixelFormat(PIXEL_FORMAT_RGBA_8888),
mBufferCount(MIN_BUFFER_SLOTS + 1),
mConnectedApi(NO_CONNECTED_API),
mAbandoned(false),
mFrameCounter(0),
mGeneration(0),
mNewFrameCallback(nullptr) {
}
GonkNativeWindow::GonkNativeWindow()
: mNewFrameCallback(nullptr)
{
GonkNativeWindow::init();
}
GonkNativeWindow::~GonkNativeWindow()
{
GonkNativeWindow::~GonkNativeWindow() {
nsAutoTArray<SurfaceDescriptor, NUM_BUFFER_SLOTS> freeList;
freeAllBuffersLocked(freeList);
releaseBufferFreeListUnlocked(freeList);
@ -58,9 +55,11 @@ GonkNativeWindow::~GonkNativeWindow()
void GonkNativeWindow::abandon()
{
CNW_LOGD("abandon");
nsAutoTArray<SurfaceDescriptor, NUM_BUFFER_SLOTS> freeList;
{
Mutex::Autolock lock(mMutex);
mQueue.clear();
mAbandoned = true;
freeAllBuffersLocked(freeList);
}
@ -69,78 +68,6 @@ void GonkNativeWindow::abandon()
mDequeueCondition.signal();
}
void GonkNativeWindow::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;
mDefaultWidth = 0;
mDefaultHeight = 0;
mPixelFormat = 0;
mUsage = 0;
mTimestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
mBufferCount = MIN_BUFFER_SLOTS;
mFrameCounter = 0;
mGeneration = 0;
mAbandoned =false;
}
int GonkNativeWindow::hook_setSwapInterval(ANativeWindow* window, int interval)
{
GonkNativeWindow* c = getSelf(window);
return c->setSwapInterval(interval);
}
int GonkNativeWindow::hook_dequeueBuffer(ANativeWindow* window,
ANativeWindowBuffer** buffer)
{
GonkNativeWindow* c = getSelf(window);
return c->dequeueBuffer(buffer);
}
int GonkNativeWindow::hook_cancelBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer)
{
GonkNativeWindow* c = getSelf(window);
return c->cancelBuffer(buffer);
}
int GonkNativeWindow::hook_lockBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer)
{
GonkNativeWindow* c = getSelf(window);
return c->lockBuffer(buffer);
}
int GonkNativeWindow::hook_queueBuffer(ANativeWindow* window,
ANativeWindowBuffer* buffer)
{
GonkNativeWindow* c = getSelf(window);
return c->queueBuffer(buffer);
}
int GonkNativeWindow::hook_query(const ANativeWindow* window,
int what, int* value)
{
const GonkNativeWindow* c = getSelf(window);
return c->query(what, value);
}
int GonkNativeWindow::hook_perform(ANativeWindow* window, int operation, ...)
{
va_list args;
va_start(args, operation);
GonkNativeWindow* c = getSelf(window);
return c->perform(operation, args);
}
void GonkNativeWindow::freeAllBuffersLocked(nsTArray<SurfaceDescriptor>& freeList)
{
CNW_LOGD("freeAllBuffersLocked: from generation %d", mGeneration);
@ -194,7 +121,7 @@ void GonkNativeWindow::clearRenderingStateBuffersLocked()
}
}
int GonkNativeWindow::setBufferCount(int bufferCount)
status_t GonkNativeWindow::setBufferCount(int bufferCount)
{
CNW_LOGD("setBufferCount: count=%d", bufferCount);
nsAutoTArray<SurfaceDescriptor, NUM_BUFFER_SLOTS> freeList;
@ -230,15 +157,16 @@ int GonkNativeWindow::setBufferCount(int bufferCount)
mBufferCount = bufferCount;
//clear only buffers in RENDERING state.
clearRenderingStateBuffersLocked();
mQueue.clear();
mDequeueCondition.signal();
return OK;
}
// reducing the number of buffers
// here we're guaranteed that the client doesn't have dequeued buffers
// and will release all of its buffer references.
freeAllBuffersLocked(freeList);
mBufferCount = bufferCount;
mQueue.clear();
mDequeueCondition.signal();
}
@ -246,12 +174,49 @@ int GonkNativeWindow::setBufferCount(int bufferCount)
return OK;
}
int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
status_t GonkNativeWindow::setDefaultBufferSize(uint32_t w, uint32_t h)
{
uint32_t defaultWidth;
uint32_t defaultHeight;
uint32_t pixelFormat;
uint32_t usage;
CNW_LOGD("setDefaultBufferSize: w=%d, h=%d", w, h);
if (!w || !h) {
CNW_LOGE("setDefaultBufferSize: dimensions cannot be 0 (w=%d, h=%d)",
w, h);
return BAD_VALUE;
}
Mutex::Autolock lock(mMutex);
mDefaultWidth = w;
mDefaultHeight = h;
return OK;
}
status_t GonkNativeWindow::requestBuffer(int slot, sp<GraphicBuffer>* buf)
{
CNW_LOGD("requestBuffer: slot=%d", slot);
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("requestBuffer: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
if (slot < 0 || mBufferCount <= slot) {
CNW_LOGE("requestBuffer: slot index out of range [0, %d]: %d",
mBufferCount, slot);
return BAD_VALUE;
}
mSlots[slot].mRequestBufferCalled = true;
*buf = mSlots[slot].mGraphicBuffer;
return NO_ERROR;
}
status_t GonkNativeWindow::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
uint32_t format, uint32_t usage)
{
if ((w && !h) || (!w && h)) {
CNW_LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
return BAD_VALUE;
}
status_t returnFlags(OK);
bool updateFormat = false;
uint32_t generation;
bool alloc = false;
int buf = INVALID_BUFFER_SLOT;
@ -330,28 +295,33 @@ int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
}
buf = found;
*outBuf = found;
const bool useDefaultSize = !w && !h;
if (useDefaultSize) {
// use the default size
w = mDefaultWidth;
h = mDefaultHeight;
}
updateFormat = (format != 0);
if (!updateFormat) {
// keep the current (or default) format
format = mPixelFormat;
}
// buffer is now in DEQUEUED
mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
const sp<GraphicBuffer>& gbuf(mSlots[buf].mGraphicBuffer);
alloc = (gbuf == NULL);
if ((gbuf!=NULL) &&
((uint32_t(gbuf->width) != mDefaultWidth) ||
(uint32_t(gbuf->height) != mDefaultHeight) ||
(uint32_t(gbuf->format) != mPixelFormat) ||
((uint32_t(gbuf->usage) & mUsage) != mUsage))) {
((uint32_t(gbuf->width) != w) ||
(uint32_t(gbuf->height) != h) ||
(uint32_t(gbuf->format) != format) ||
((uint32_t(gbuf->usage) & usage) != usage))) {
alloc = true;
descOld = mSlots[buf].mSurfaceDescriptor;
}
if (alloc) {
// get local copies for graphics buffer allocations
defaultWidth = mDefaultWidth;
defaultHeight = mDefaultHeight;
pixelFormat = mPixelFormat;
usage = mUsage;
}
}
// At this point, the buffer is now marked DEQUEUED, and no one else
@ -365,11 +335,12 @@ int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
ImageBridgeChild* ibc;
sp<GraphicBuffer> graphicBuffer;
if (alloc) {
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
status_t error;
ibc = ImageBridgeChild::GetSingleton();
CNW_LOGD("dequeueBuffer: about to alloc surface descriptor");
ibc->AllocSurfaceDescriptorGralloc(gfxIntSize(defaultWidth, defaultHeight),
pixelFormat,
ibc->AllocSurfaceDescriptorGralloc(gfxIntSize(w, h),
format,
usage,
&desc);
// We can only use a gralloc buffer here. If we didn't get
@ -392,17 +363,20 @@ int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
{
Mutex::Autolock lock(mMutex);
if (generation == mGeneration) {
if (updateFormat) {
mPixelFormat = format;
}
if (alloc) {
mSlots[buf].mGraphicBuffer = graphicBuffer;
mSlots[buf].mSurfaceDescriptor = desc;
mSlots[buf].mSurfaceDescriptor.get_SurfaceDescriptorGralloc().external() = true;
}
*buffer = mSlots[buf].mGraphicBuffer.get();
mSlots[buf].mRequestBufferCalled = false;
returnFlags |= ISurfaceTexture::BUFFER_NEEDS_REALLOCATION;
}
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle);
} else {
*buffer = nullptr;
tooOld = true;
}
}
@ -415,7 +389,15 @@ int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
ibc->DeallocSurfaceDescriptorGralloc(desc);
}
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle );
CNW_LOGD("dequeueBuffer: X");
return returnFlags;
}
status_t GonkNativeWindow::setSynchronousMode(bool enabled)
{
return NO_ERROR;
}
@ -448,7 +430,8 @@ GonkNativeWindow::getSurfaceDescriptorFromBuffer(ANativeWindowBuffer* buffer)
return &mSlots[buf].mSurfaceDescriptor;
}
int GonkNativeWindow::queueBuffer(ANativeWindowBuffer* buffer)
status_t GonkNativeWindow::queueBuffer(int buf, int64_t timestamp,
uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform)
{
{
Mutex::Autolock lock(mMutex);
@ -458,9 +441,6 @@ int GonkNativeWindow::queueBuffer(ANativeWindowBuffer* buffer)
CNW_LOGE("queueBuffer: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
int buf = getSlotFromBufferLocked(buffer);
if (buf < 0 || buf >= mBufferCount) {
CNW_LOGE("queueBuffer: slot index out of range [0, %d]: %d",
mBufferCount, buf);
@ -469,14 +449,13 @@ int GonkNativeWindow::queueBuffer(ANativeWindowBuffer* buffer)
CNW_LOGE("queueBuffer: slot %d is not owned by the client "
"(state=%d)", buf, mSlots[buf].mBufferState);
return -EINVAL;
} else if (!mSlots[buf].mRequestBufferCalled) {
CNW_LOGE("queueBuffer: slot %d was enqueued without requesting a "
"buffer", buf);
return -EINVAL;
}
int64_t timestamp;
if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) {
timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
} else {
timestamp = mTimestamp;
}
mQueue.push_back(buf);
mSlots[buf].mBufferState = BufferSlot::QUEUED;
mSlots[buf].mTimestamp = timestamp;
@ -484,6 +463,10 @@ int GonkNativeWindow::queueBuffer(ANativeWindowBuffer* buffer)
mSlots[buf].mFrameNumber = mFrameCounter;
mDequeueCondition.signal();
*outWidth = mDefaultWidth;
*outHeight = mDefaultHeight;
*outTransform = 0;
}
// OnNewFrame might call lockCurrentBuffer so we must release the
@ -507,26 +490,19 @@ GonkNativeWindow::getCurrentBuffer()
return NULL;
}
int found = -1;
for (int i = 0; i < mBufferCount; i++) {
const int state = mSlots[i].mBufferState;
if (state == BufferSlot::QUEUED) {
if (found < 0 ||
mSlots[i].mFrameNumber < mSlots[found].mFrameNumber) {
found = i;
}
}
}
if (found < 0) {
if(mQueue.empty()) {
mDequeueCondition.signal();
return NULL;
return nullptr;
}
mSlots[found].mBufferState = BufferSlot::RENDERING;
Fifo::iterator front(mQueue.begin());
int buf = *front;
mSlots[buf].mBufferState = BufferSlot::RENDERING;
nsRefPtr<GraphicBufferLocked> ret =
new CameraGraphicBuffer(this, found, mGeneration, mSlots[found].mSurfaceDescriptor);
new CameraGraphicBuffer(this, buf, mGeneration, mSlots[buf].mSurfaceDescriptor);
mQueue.erase(front);
mDequeueCondition.signal();
return ret.forget();
}
@ -563,78 +539,123 @@ GonkNativeWindow::returnBuffer(uint32_t aIndex, uint32_t aGeneration)
return true;
}
int GonkNativeWindow::lockBuffer(ANativeWindowBuffer* buffer)
{
CNW_LOGD("GonkNativeWindow::lockBuffer");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("lockBuffer: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
return OK;
}
int GonkNativeWindow::cancelBuffer(ANativeWindowBuffer* buffer)
{
void GonkNativeWindow::cancelBuffer(int buf) {
CNW_LOGD("cancelBuffer: slot=%d", buf);
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGD("cancelBuffer: GonkNativeWindow has been abandoned!");
return NO_INIT;
return;
}
int buf = getSlotFromBufferLocked(buffer);
CNW_LOGD("cancelBuffer: slot=%d", buf);
if (buf < 0 || buf >= mBufferCount) {
CNW_LOGE("cancelBuffer: slot index out of range [0, %d]: %d",
mBufferCount, buf);
return -EINVAL;
return;
} else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) {
CNW_LOGE("cancelBuffer: slot %d is not owned by the client (state=%d)",
buf, mSlots[buf].mBufferState);
return -EINVAL;
return;
}
mSlots[buf].mBufferState = BufferSlot::FREE;
mSlots[buf].mFrameNumber = 0;
mDequeueCondition.signal();
}
status_t GonkNativeWindow::setCrop(const Rect& crop) {
return OK;
}
int GonkNativeWindow::perform(int operation, va_list args)
{
switch (operation) {
case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
case NATIVE_WINDOW_SET_BUFFERS_SIZE:
case NATIVE_WINDOW_SET_SCALING_MODE:
case NATIVE_WINDOW_SET_CROP:
case NATIVE_WINDOW_CONNECT:
case NATIVE_WINDOW_DISCONNECT:
// deprecated. must return NO_ERROR.
return NO_ERROR;
case NATIVE_WINDOW_SET_USAGE:
return dispatchSetUsage(args);
case NATIVE_WINDOW_SET_BUFFER_COUNT:
return dispatchSetBufferCount(args);
case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
return dispatchSetBuffersGeometry(args);
case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
return dispatchSetBuffersTimestamp(args);
case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS:
return dispatchSetBuffersDimensions(args);
case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
return dispatchSetBuffersFormat(args);
case NATIVE_WINDOW_LOCK:
case NATIVE_WINDOW_UNLOCK_AND_POST:
case NATIVE_WINDOW_API_CONNECT:
case NATIVE_WINDOW_API_DISCONNECT:
default:
NS_WARNING("Unsupported operation");
return INVALID_OPERATION;
}
status_t GonkNativeWindow::setTransform(uint32_t transform) {
return OK;
}
int GonkNativeWindow::query(int what, int* outValue) const
status_t GonkNativeWindow::connect(int api,
uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
CNW_LOGD("connect: api=%d", api);
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("connect: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
int err = NO_ERROR;
switch (api) {
case NATIVE_WINDOW_API_EGL:
case NATIVE_WINDOW_API_CPU:
case NATIVE_WINDOW_API_MEDIA:
case NATIVE_WINDOW_API_CAMERA:
if (mConnectedApi != NO_CONNECTED_API) {
CNW_LOGE("connect: already connected (cur=%d, req=%d)",
mConnectedApi, api);
err = -EINVAL;
} else {
mConnectedApi = api;
*outWidth = mDefaultWidth;
*outHeight = mDefaultHeight;
*outTransform = 0;
}
break;
default:
err = -EINVAL;
break;
}
return err;
}
status_t GonkNativeWindow::disconnect(int api) {
CNW_LOGD("disconnect: api=%d", api);
int err = NO_ERROR;
nsAutoTArray<SurfaceDescriptor, NUM_BUFFER_SLOTS> freeList;
{
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
// it is not really an error to disconnect after the surface
// has been abandoned, it should just be a no-op.
return NO_ERROR;
}
switch (api) {
case NATIVE_WINDOW_API_EGL:
case NATIVE_WINDOW_API_CPU:
case NATIVE_WINDOW_API_MEDIA:
case NATIVE_WINDOW_API_CAMERA:
if (mConnectedApi == api) {
mQueue.clear();
freeAllBuffersLocked(freeList);
mConnectedApi = NO_CONNECTED_API;
mDequeueCondition.signal();
} else {
CNW_LOGE("disconnect: connected to another api (cur=%d, req=%d)",
mConnectedApi, api);
err = -EINVAL;
}
break;
default:
CNW_LOGE("disconnect: unknown API %d", api);
err = -EINVAL;
break;
}
}
releaseBufferFreeListUnlocked(freeList);
return err;
}
status_t GonkNativeWindow::setScalingMode(int mode) {
return OK;
}
void GonkNativeWindow::setNewFrameCallback(
GonkNativeWindowNewFrameCallback* aCallback) {
CNW_LOGD("setNewFrameCallback");
Mutex::Autolock lock(mMutex);
mNewFrameCallback = aCallback;
}
int GonkNativeWindow::query(int what, int* outValue)
{
Mutex::Autolock lock(mMutex);
@ -663,118 +684,3 @@ int GonkNativeWindow::query(int what, int* outValue) const
outValue[0] = value;
return NO_ERROR;
}
int GonkNativeWindow::setSwapInterval(int interval)
{
return NO_ERROR;
}
int GonkNativeWindow::dispatchSetUsage(va_list args)
{
int usage = va_arg(args, int);
return setUsage(usage);
}
int GonkNativeWindow::dispatchSetBufferCount(va_list args)
{
size_t bufferCount = va_arg(args, size_t);
return setBufferCount(bufferCount);
}
int GonkNativeWindow::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 GonkNativeWindow::dispatchSetBuffersDimensions(va_list args)
{
int w = va_arg(args, int);
int h = va_arg(args, int);
return setBuffersDimensions(w, h);
}
int GonkNativeWindow::dispatchSetBuffersFormat(va_list args)
{
int f = va_arg(args, int);
return setBuffersFormat(f);
}
int GonkNativeWindow::dispatchSetBuffersTimestamp(va_list args)
{
int64_t timestamp = va_arg(args, int64_t);
return setBuffersTimestamp(timestamp);
}
int GonkNativeWindow::setUsage(uint32_t reqUsage)
{
CNW_LOGD("GonkNativeWindow::setUsage");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("setUsage: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
mUsage = reqUsage;
return OK;
}
int GonkNativeWindow::setBuffersDimensions(int w, int h)
{
CNW_LOGD("GonkNativeWindow::setBuffersDimensions");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("setBuffersDimensions: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
if (w<0 || h<0)
return BAD_VALUE;
if ((w && !h) || (!w && h))
return BAD_VALUE;
mDefaultWidth = w;
mDefaultHeight = h;
return OK;
}
int GonkNativeWindow::setBuffersFormat(int format)
{
CNW_LOGD("GonkNativeWindow::setBuffersFormat");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("setBuffersFormat: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
if (format<0)
return BAD_VALUE;
mPixelFormat = format;
return NO_ERROR;
}
int GonkNativeWindow::setBuffersTimestamp(int64_t timestamp)
{
CNW_LOGD("GonkNativeWindow::setBuffersTimestamp");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("setBuffersTimestamp: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
mTimestamp = timestamp;
return OK;
}

140
dom/camera/GonkNativeWindow.h
Просмотреть файл

@ -1,5 +1,3 @@
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=4 et sw=4 tw=80: */
/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012 Mozilla Foundation
@ -23,13 +21,12 @@
#include <stdint.h>
#include <sys/types.h>
#include <gui/ISurfaceTexture.h>
#include <ui/egl/android_natives.h>
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <ui/GraphicBuffer.h>
#include <ui/Rect.h>
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <utils/String8.h>
#include <utils/threads.h>
@ -47,8 +44,10 @@ public:
virtual void OnNewFrame() = 0;
};
class GonkNativeWindow : public EGLNativeBase<ANativeWindow, GonkNativeWindow, RefBase>
class GonkNativeWindow : public BnSurfaceTexture
{
friend class GonkNativeWindowClient;
typedef mozilla::layers::SurfaceDescriptor SurfaceDescriptor;
typedef mozilla::layers::GraphicBufferLocked GraphicBufferLocked;
@ -56,21 +55,12 @@ public:
enum { MIN_UNDEQUEUED_BUFFERS = 2 };
enum { MIN_BUFFER_SLOTS = MIN_UNDEQUEUED_BUFFERS };
enum { NUM_BUFFER_SLOTS = 32 };
enum { NO_CONNECTED_API = 0 };
enum { NATIVE_WINDOW_SET_BUFFERS_SIZE = 0x10000000 };
GonkNativeWindow();
GonkNativeWindow(GonkNativeWindowNewFrameCallback* aCallback);
~GonkNativeWindow(); // this class cannot be overloaded
// ANativeWindow hooks
static int hook_cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer);
static int hook_lockBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_perform(ANativeWindow* window, int operation, ...);
static int hook_query(const ANativeWindow* window, int what, int* value);
static int hook_queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_setSwapInterval(ANativeWindow* window, int interval);
// Get next frame from the queue and mark it as RENDERING, caller
// owns the returned buffer.
already_AddRefed<GraphicBufferLocked> getCurrentBuffer();
@ -79,25 +69,79 @@ public:
// the buffer is useable again for the decoder.
bool returnBuffer(uint32_t index, uint32_t generation);
// Release all internal buffers
// setBufferCount updates the number of available buffer slots. After
// calling this all buffer slots are owned by the GonkNativeWindow object
// (i.e. they are not owned by the client).
virtual status_t setBufferCount(int bufferCount);
// requestBuffer requests a new buffer for the given index.
virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf);
// dequeueBuffer gets the next buffer slot index for the client to use. If a
// buffer slot is available then that slot index is written to the location
// pointed to by the buf argument and a status of OK is returned. If no
// slot is available then a status of -EBUSY is returned and buf is
// unmodified.
virtual status_t dequeueBuffer(int *buf, uint32_t width, uint32_t height,
uint32_t format, uint32_t usage);
// queueBuffer returns a filled buffer to the GonkNativeWindow. In addition,
// a timestamp must be provided for the buffer. The timestamp is in
// nanoseconds, and must be monotonically increasing. Its other semantics
// (zero point, etc) are client-dependent and should be documented by the
// client.
virtual status_t queueBuffer(int buf, int64_t timestamp,
uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
virtual void cancelBuffer(int buf);
virtual status_t setCrop(const Rect& reg);
virtual status_t setTransform(uint32_t transform);
virtual status_t setScalingMode(int mode);
virtual int query(int what, int* value);
// Qcom specific function
virtual int performQcomOperation(int operation, int arg1, int arg2, int arg3) {
return OK;
}
// GonkNativeWindow do not implement the function and always works in
// synchronous mode.
virtual status_t setSynchronousMode(bool enabled);
// connect attempts to connect a client API to the GonkNativeWindow.
//
// This method will fail if the connect was previously called on the
// GonkNativeWindow and no corresponding disconnect call was made.
virtual status_t connect(int api,
uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
// disconnect attempts to disconnect a client API from the GonkNativeWindow.
// This method will fail if the the GonkNativeWindow is not currently
// connected to the specified client API.
virtual status_t disconnect(int api);
void setNewFrameCallback(GonkNativeWindowNewFrameCallback* aCallback);
// setDefaultBufferSize is used to set the size of buffers returned by
// requestBuffers when a with and height of zero is requested.
// A call to setDefaultBufferSize() may trigger requestBuffers() to
// be called from the client.
status_t setDefaultBufferSize(uint32_t width, uint32_t height);
// abandon frees all the buffers and puts the GonkNativeWindow into the
// 'abandoned' state. Once put in this state the GonkNativeWindow can never
// leave it. When in the 'abandoned' state, all methods of the
// ISurfaceTexture interface will fail with the NO_INIT error.
//
// Note that while calling this method causes all the buffers to be freed
// from the perspective of the the GonkNativeWindow, if there are additional
// references on the buffers (e.g. if a buffer is referenced by a client)
// then those buffer will remain allocated.
void abandon();
SurfaceDescriptor *getSurfaceDescriptorFromBuffer(ANativeWindowBuffer* buffer);
protected:
virtual int cancelBuffer(ANativeWindowBuffer* buffer);
virtual int dequeueBuffer(ANativeWindowBuffer** buffer);
virtual int lockBuffer(ANativeWindowBuffer* buffer);
virtual int perform(int operation, va_list args);
virtual int query(int what, int* value) const;
virtual int queueBuffer(ANativeWindowBuffer* buffer);
virtual int setSwapInterval(int interval);
virtual int setBufferCount(int bufferCount);
virtual int setBuffersDimensions(int w, int h);
virtual int setBuffersFormat(int format);
virtual int setBuffersTimestamp(int64_t timestamp);
virtual int setUsage(uint32_t reqUsage);
// freeAllBuffersLocked frees the resources (both GraphicBuffer and
// EGLImage) for all slots by removing them from the slots and appending
@ -117,23 +161,14 @@ protected:
private:
void init();
int dispatchSetBufferCount(va_list args);
int dispatchSetBuffersGeometry(va_list args);
int dispatchSetBuffersDimensions(va_list args);
int dispatchSetBuffersFormat(va_list args);
int dispatchSetBuffersTimestamp(va_list args);
int dispatchSetUsage(va_list args);
int getSlotFromBufferLocked(android_native_buffer_t* buffer) const;
private:
enum { INVALID_BUFFER_SLOT = -1 };
struct BufferSlot {
BufferSlot()
: mGraphicBuffer(0),
mBufferState(BufferSlot::FREE),
: mBufferState(BufferSlot::FREE),
mTimestamp(0),
mFrameNumber(0){
}
@ -184,6 +219,11 @@ private:
// mBufferState is the current state of this buffer slot.
BufferState mBufferState;
// mRequestBufferCalled is used for validating that the client did
// call requestBuffer() when told to do so. Technically this is not
// needed but useful for debugging and catching client bugs.
bool mRequestBufferCalled;
// mTimestamp is the current timestamp for this buffer slot. This gets
// to set by queueBuffer each time this slot is queued.
int64_t mTimestamp;
@ -226,16 +266,24 @@ private:
// in requestBuffers() if a format of zero is specified.
uint32_t mPixelFormat;
// usage flag
uint32_t mUsage;
// mBufferCount is the number of buffer slots that the client and server
// must maintain. It defaults to MIN_ASYNC_BUFFER_SLOTS and can be changed
// must maintain. It defaults to MIN_BUFFER_SLOTS + 1 and can be changed
// by calling setBufferCount or setBufferCountServer
int mBufferCount;
// mConnectedApi indicates the API that is currently connected to this
// GonkNativeWindow. It defaults to NO_CONNECTED_API (= 0), and gets updated
// by the connect and disconnect methods.
int mConnectedApi;
// mQueue is a FIFO of queued buffers used in synchronous mode
// GonkNativeWindow always works in synchronous mode
typedef Vector<int> Fifo;
Fifo mQueue;
// mMutex is the mutex used to prevent concurrent access to the member
// variables. It must be locked whenever the member variables are accessed.
// variables of GonkNativeWindow objects. It must be locked whenever the
// member variables are accessed.
mutable Mutex mMutex;
// mFrameCounter is the free running counter, incremented for every buffer queued

446
dom/camera/GonkNativeWindowClient.cpp Normal file
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@ -0,0 +1,446 @@
/*
* 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;
}
}

136
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@ -0,0 +1,136 @@
/*
* 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.
*/
#ifndef DOM_CAMERA_GONKNATIVEWINDOWCLIENT_H
#define DOM_CAMERA_GONKNATIVEWINDOWCLIENT_H
#include <ui/egl/android_natives.h>
#include "GonkNativeWindow.h"
namespace android {
class GonkNativeWindowClient : public EGLNativeBase<ANativeWindow, GonkNativeWindowClient, RefBase>
{
public:
GonkNativeWindowClient(const sp<GonkNativeWindow>& window);
~GonkNativeWindowClient(); // this class cannot be overloaded
private:
void init();
// ANativeWindow hooks
static int hook_cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer);
static int hook_lockBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_perform(ANativeWindow* window, int operation, ...);
static int hook_query(const ANativeWindow* window, int what, int* value);
static int hook_queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer);
static int hook_setSwapInterval(ANativeWindow* window, int interval);
int dispatchConnect(va_list args);
int dispatchDisconnect(va_list args);
int dispatchSetBufferCount(va_list args);
int dispatchSetBuffersGeometry(va_list args);
int dispatchSetBuffersDimensions(va_list args);
int dispatchSetBuffersFormat(va_list args);
int dispatchSetBuffersTimestamp(va_list args);
int dispatchSetUsage(va_list args);
protected:
virtual int cancelBuffer(ANativeWindowBuffer* buffer);
virtual int dequeueBuffer(ANativeWindowBuffer** buffer);
virtual int lockBuffer(ANativeWindowBuffer* buffer);
virtual int perform(int operation, va_list args);
virtual int query(int what, int* value) const;
virtual int queueBuffer(ANativeWindowBuffer* buffer);
virtual int setSwapInterval(int interval);
virtual int connect(int api);
virtual int disconnect(int api);
virtual int setBufferCount(int bufferCount);
virtual int setBuffersDimensions(int w, int h);
virtual int setBuffersFormat(int format);
virtual int setBuffersTimestamp(int64_t timestamp);
virtual int setUsage(uint32_t reqUsage);
int getNumberOfArgsForOperation(int operation);
enum { MIN_UNDEQUEUED_BUFFERS = GonkNativeWindow::MIN_UNDEQUEUED_BUFFERS };
enum { NUM_BUFFER_SLOTS = GonkNativeWindow::NUM_BUFFER_SLOTS };
enum { DEFAULT_FORMAT = PIXEL_FORMAT_RGBA_8888 };
enum { NATIVE_WINDOW_SET_BUFFERS_SIZE = 0x10000000 };
private:
void freeAllBuffers();
int getSlotFromBufferLocked(android_native_buffer_t* buffer) const;
sp<GonkNativeWindow> mNativeWindow;
// mSlots stores the buffers that have been allocated for each buffer slot.
// It is initialized to null pointers, and gets filled in with the result of
// ISurfaceTexture::requestBuffer when the client dequeues a buffer from a
// slot that has not yet been used. The buffer allocated to a slot will also
// be replaced if the requested buffer usage or geometry differs from that
// of the buffer allocated to a slot.
sp<GraphicBuffer> mSlots[NUM_BUFFER_SLOTS];
// mReqWidth is the buffer width that will be requested at the next dequeue
// operation. It is initialized to 1.
uint32_t mReqWidth;
// mReqHeight is the buffer height that will be requested at the next deuque
// operation. It is initialized to 1.
uint32_t mReqHeight;
// mReqFormat is the buffer pixel format that will be requested at the next
// deuque operation. It is initialized to PIXEL_FORMAT_RGBA_8888.
uint32_t mReqFormat;
// mReqUsage is the set of buffer usage flags that will be requested
// at the next deuque operation. It is initialized to 0.
uint32_t mReqUsage;
// mTimestamp is the timestamp that will be used for the next buffer queue
// operation. It defaults to NATIVE_WINDOW_TIMESTAMP_AUTO, which means that
// a timestamp is auto-generated when queueBuffer is called.
int64_t mTimestamp;
// mDefaultWidth is default width of the window, regardless of the
// native_window_set_buffers_dimensions call
uint32_t mDefaultWidth;
// mDefaultHeight is default width of the window, regardless of the
// native_window_set_buffers_dimensions call
uint32_t mDefaultHeight;
// mTransformHint is the transform probably applied to buffers of this
// window. this is only a hint, actual transform may differ.
uint32_t mTransformHint;
// mMutex is the mutex used to prevent concurrent access to the member
// variables of GonkNativeWindow objects. It must be locked whenever the
// member variables are accessed.
mutable Mutex mMutex;
bool mConnectedToCpu;
};
}; // namespace android
#endif // DOM_CAMERA_GONKNATIVEWINDOWCLIENT_H